From 6a82559f745bc26d2e4974c1d26014ef7fa14794 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert+renesas@glider.be>
Date: Fri, 1 Mar 2019 12:07:15 +0100
Subject: [PATCH 01/17] clk: renesas: rcar-gen3: Pass name/offset to
 cpg_sd_clk_register()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Explicitly pass the clock's name and register offset to
cpg_sd_clk_register(), so the latter doesn't have to extract them from
the cpg_core_clk object.

This keeps all cpg_core_clk parsing and unmarshalling contained in a
single function (rcar_gen3_cpg_clk_register()).

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
---
 drivers/clk/renesas/rcar-gen3-cpg.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/clk/renesas/rcar-gen3-cpg.c b/drivers/clk/renesas/rcar-gen3-cpg.c
index 9a8071a8114da..dcd4ac389326b 100644
--- a/drivers/clk/renesas/rcar-gen3-cpg.c
+++ b/drivers/clk/renesas/rcar-gen3-cpg.c
@@ -369,8 +369,8 @@ static u32 cpg_quirks __initdata;
 #define RCKCR_CKSEL	BIT(1)		/* Manual RCLK parent selection */
 #define SD_SKIP_FIRST	BIT(2)		/* Skip first clock in SD table */
 
-static struct clk * __init cpg_sd_clk_register(const struct cpg_core_clk *core,
-	void __iomem *base, const char *parent_name,
+static struct clk * __init cpg_sd_clk_register(const char *name,
+	void __iomem *base, unsigned int offset, const char *parent_name,
 	struct raw_notifier_head *notifiers)
 {
 	struct clk_init_data init;
@@ -383,13 +383,13 @@ static struct clk * __init cpg_sd_clk_register(const struct cpg_core_clk *core,
 	if (!clock)
 		return ERR_PTR(-ENOMEM);
 
-	init.name = core->name;
+	init.name = name;
 	init.ops = &cpg_sd_clock_ops;
 	init.flags = CLK_SET_RATE_PARENT;
 	init.parent_names = &parent_name;
 	init.num_parents = 1;
 
-	clock->csn.reg = base + core->offset;
+	clock->csn.reg = base + offset;
 	clock->hw.init = &init;
 	clock->div_table = cpg_sd_div_table;
 	clock->div_num = ARRAY_SIZE(cpg_sd_div_table);
@@ -606,8 +606,8 @@ struct clk * __init rcar_gen3_cpg_clk_register(struct device *dev,
 		break;
 
 	case CLK_TYPE_GEN3_SD:
-		return cpg_sd_clk_register(core, base, __clk_get_name(parent),
-					   notifiers);
+		return cpg_sd_clk_register(core->name, base, core->offset,
+					   __clk_get_name(parent), notifiers);
 
 	case CLK_TYPE_GEN3_R:
 		if (cpg_quirks & RCKCR_CKSEL) {

From 9c561be8d8f2e01afaa9657051fc22e1e68f1914 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert+renesas@glider.be>
Date: Tue, 12 Mar 2019 09:02:52 +0100
Subject: [PATCH 02/17] clk: renesas: r7s9210: Always use readl()

On arm32, there is no reason to use the (soon deprecated) clk_readl().
Hence use the generic readl() instead.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
---
 drivers/clk/renesas/r7s9210-cpg-mssr.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/renesas/r7s9210-cpg-mssr.c b/drivers/clk/renesas/r7s9210-cpg-mssr.c
index 57c49fe882956..cf65d4e0e1166 100644
--- a/drivers/clk/renesas/r7s9210-cpg-mssr.c
+++ b/drivers/clk/renesas/r7s9210-cpg-mssr.c
@@ -11,6 +11,7 @@
 
 #include <linux/clk.h>
 #include <linux/clk-provider.h>
+#include <linux/io.h>
 #include <dt-bindings/clock/r7s9210-cpg-mssr.h>
 #include "renesas-cpg-mssr.h"
 
@@ -119,7 +120,7 @@ static void __init r7s9210_update_clk_table(struct clk *extal_clk,
 	if (clk_get_rate(extal_clk) > 12000000)
 		cpg_mode = 1;
 
-	frqcr = clk_readl(base + CPG_FRQCR) & 0xFFF;
+	frqcr = readl(base + CPG_FRQCR) & 0xFFF;
 	if (frqcr == 0x012)
 		index = 0;
 	else if (frqcr == 0x112)

From 1addd6d568d02a9a1ce44307ec9c678e66e18c9e Mon Sep 17 00:00:00 2001
From: Gareth Williams <gareth.williams.jx@renesas.com>
Date: Fri, 22 Mar 2019 11:33:04 +0000
Subject: [PATCH 03/17] clk: renesas: r9a06g032: Add missing PCI USB clock

The clock driver is missing support for the clk_pci_usb clock that is
present on the SoC. This is added to allow the clock to be supported.

Signed-off-by: Gareth Williams <gareth.williams.jx@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 drivers/clk/renesas/r9a06g032-clocks.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/clk/renesas/r9a06g032-clocks.c b/drivers/clk/renesas/r9a06g032-clocks.c
index 658cb11b6f55c..97c72477cd54a 100644
--- a/drivers/clk/renesas/r9a06g032-clocks.c
+++ b/drivers/clk/renesas/r9a06g032-clocks.c
@@ -170,6 +170,7 @@ static const struct r9a06g032_clkdesc r9a06g032_clocks[] __initconst = {
 	D_GATE(CLK_P6_PG2, "clk_p6_pg2", DIV_P6_PG, 0x8a3, 0x8a4, 0x8a5, 0, 0xb61, 0, 0),
 	D_GATE(CLK_P6_PG3, "clk_p6_pg3", DIV_P6_PG, 0x8a6, 0x8a7, 0x8a8, 0, 0xb62, 0, 0),
 	D_GATE(CLK_P6_PG4, "clk_p6_pg4", DIV_P6_PG, 0x8a9, 0x8aa, 0x8ab, 0, 0xb63, 0, 0),
+	D_GATE(CLK_PCI_USB, "clk_pci_usb", CLKOUT_D40, 0xe6, 0, 0, 0, 0, 0, 0),
 	D_GATE(CLK_QSPI0, "clk_qspi0", DIV_QSPI0, 0x2a4, 0x2a5, 0, 0, 0, 0, 0),
 	D_GATE(CLK_QSPI1, "clk_qspi1", DIV_QSPI1, 0x484, 0x485, 0, 0, 0, 0, 0),
 	D_GATE(CLK_RGMII_REF, "clk_rgmii_ref", CLKOUT_D8, 0x340, 0, 0, 0, 0, 0, 0),

From 20cc05ba04a93f05d6c50789fe35d762a2db4e96 Mon Sep 17 00:00:00 2001
From: Takeshi Kihara <takeshi.kihara.df@renesas.com>
Date: Mon, 25 Mar 2019 17:35:50 +0100
Subject: [PATCH 04/17] clk: renesas: rcar-gen3: Parameterise Z and Z2 clock
 fixed divisor

Parameterise Z and Z2 clock fixed divisor to allow clocks with a fixed
divisor other than 2, the value used by all such clocks supported to date.

This is in preparation for supporting the Z2 clock on the R-Car E3
(r8a77990) SoC which has a fixed divisor of 4.

Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
[simon: squashed several patches; rewrote changelog; added r8a774a1 change]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 drivers/clk/renesas/r8a774a1-cpg-mssr.c |  4 ++--
 drivers/clk/renesas/r8a7795-cpg-mssr.c  |  5 +++--
 drivers/clk/renesas/r8a7796-cpg-mssr.c  |  5 +++--
 drivers/clk/renesas/r8a77965-cpg-mssr.c |  2 +-
 drivers/clk/renesas/rcar-gen3-cpg.c     | 24 +++++++++++++++---------
 drivers/clk/renesas/rcar-gen3-cpg.h     |  4 ++++
 6 files changed, 28 insertions(+), 16 deletions(-)

diff --git a/drivers/clk/renesas/r8a774a1-cpg-mssr.c b/drivers/clk/renesas/r8a774a1-cpg-mssr.c
index 4d92b27a61538..99bcb7c8022f6 100644
--- a/drivers/clk/renesas/r8a774a1-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a774a1-cpg-mssr.c
@@ -71,8 +71,8 @@ static const struct cpg_core_clk r8a774a1_core_clks[] __initconst = {
 	DEF_GEN3_OSC(".r",      CLK_RINT,          CLK_EXTAL,      32),
 
 	/* Core Clock Outputs */
-	DEF_BASE("z",           R8A774A1_CLK_Z,     CLK_TYPE_GEN3_Z, CLK_PLL0),
-	DEF_BASE("z2",          R8A774A1_CLK_Z2,    CLK_TYPE_GEN3_Z2, CLK_PLL2),
+	DEF_GEN3_Z("z",		R8A774A1_CLK_Z,     CLK_TYPE_GEN3_Z, CLK_PLL0, 2),
+	DEF_GEN3_Z("z2",	R8A774A1_CLK_Z2,    CLK_TYPE_GEN3_Z2, CLK_PLL2, 2),
 	DEF_FIXED("ztr",        R8A774A1_CLK_ZTR,   CLK_PLL1_DIV2,  6, 1),
 	DEF_FIXED("ztrd2",      R8A774A1_CLK_ZTRD2, CLK_PLL1_DIV2, 12, 1),
 	DEF_FIXED("zt",         R8A774A1_CLK_ZT,    CLK_PLL1_DIV2,  4, 1),
diff --git a/drivers/clk/renesas/r8a7795-cpg-mssr.c b/drivers/clk/renesas/r8a7795-cpg-mssr.c
index 86842c9fd314e..d4cf1c91533ed 100644
--- a/drivers/clk/renesas/r8a7795-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a7795-cpg-mssr.c
@@ -3,6 +3,7 @@
  * r8a7795 Clock Pulse Generator / Module Standby and Software Reset
  *
  * Copyright (C) 2015 Glider bvba
+ * Copyright (C) 2018 Renesas Electronics Corp.
  *
  * Based on clk-rcar-gen3.c
  *
@@ -73,8 +74,8 @@ static struct cpg_core_clk r8a7795_core_clks[] __initdata = {
 	DEF_GEN3_OSC(".r",      CLK_RINT,          CLK_EXTAL,      32),
 
 	/* Core Clock Outputs */
-	DEF_BASE("z",           R8A7795_CLK_Z,     CLK_TYPE_GEN3_Z, CLK_PLL0),
-	DEF_BASE("z2",          R8A7795_CLK_Z2,    CLK_TYPE_GEN3_Z2, CLK_PLL2),
+	DEF_GEN3_Z("z",         R8A7795_CLK_Z,	   CLK_TYPE_GEN3_Z,  CLK_PLL0, 2),
+	DEF_GEN3_Z("z2",        R8A7795_CLK_Z2,    CLK_TYPE_GEN3_Z2, CLK_PLL2, 2),
 	DEF_FIXED("ztr",        R8A7795_CLK_ZTR,   CLK_PLL1_DIV2,  6, 1),
 	DEF_FIXED("ztrd2",      R8A7795_CLK_ZTRD2, CLK_PLL1_DIV2, 12, 1),
 	DEF_FIXED("zt",         R8A7795_CLK_ZT,    CLK_PLL1_DIV2,  4, 1),
diff --git a/drivers/clk/renesas/r8a7796-cpg-mssr.c b/drivers/clk/renesas/r8a7796-cpg-mssr.c
index 12c455859f2c2..77254f2b4519e 100644
--- a/drivers/clk/renesas/r8a7796-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a7796-cpg-mssr.c
@@ -3,6 +3,7 @@
  * r8a7796 Clock Pulse Generator / Module Standby and Software Reset
  *
  * Copyright (C) 2016 Glider bvba
+ * Copyright (C) 2018 Renesas Electronics Corp.
  *
  * Based on r8a7795-cpg-mssr.c
  *
@@ -73,8 +74,8 @@ static const struct cpg_core_clk r8a7796_core_clks[] __initconst = {
 	DEF_GEN3_OSC(".r",      CLK_RINT,          CLK_EXTAL,      32),
 
 	/* Core Clock Outputs */
-	DEF_BASE("z",           R8A7796_CLK_Z,     CLK_TYPE_GEN3_Z, CLK_PLL0),
-	DEF_BASE("z2",          R8A7796_CLK_Z2,    CLK_TYPE_GEN3_Z2, CLK_PLL2),
+	DEF_GEN3_Z("z",         R8A7796_CLK_Z,     CLK_TYPE_GEN3_Z,  CLK_PLL0, 2),
+	DEF_GEN3_Z("z2",        R8A7796_CLK_Z2,    CLK_TYPE_GEN3_Z2, CLK_PLL2, 2),
 	DEF_FIXED("ztr",        R8A7796_CLK_ZTR,   CLK_PLL1_DIV2,  6, 1),
 	DEF_FIXED("ztrd2",      R8A7796_CLK_ZTRD2, CLK_PLL1_DIV2, 12, 1),
 	DEF_FIXED("zt",         R8A7796_CLK_ZT,    CLK_PLL1_DIV2,  4, 1),
diff --git a/drivers/clk/renesas/r8a77965-cpg-mssr.c b/drivers/clk/renesas/r8a77965-cpg-mssr.c
index eb1cca58a1e1f..f8f73558c1ec8 100644
--- a/drivers/clk/renesas/r8a77965-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a77965-cpg-mssr.c
@@ -71,7 +71,7 @@ static const struct cpg_core_clk r8a77965_core_clks[] __initconst = {
 	DEF_GEN3_OSC(".r",	CLK_RINT,		CLK_EXTAL,	32),
 
 	/* Core Clock Outputs */
-	DEF_BASE("z",		R8A77965_CLK_Z,		CLK_TYPE_GEN3_Z, CLK_PLL0),
+	DEF_GEN3_Z("z",		R8A77965_CLK_Z,		CLK_TYPE_GEN3_Z,  CLK_PLL0, 2),
 	DEF_FIXED("ztr",	R8A77965_CLK_ZTR,	CLK_PLL1_DIV2,	6, 1),
 	DEF_FIXED("ztrd2",	R8A77965_CLK_ZTRD2,	CLK_PLL1_DIV2,	12, 1),
 	DEF_FIXED("zt",		R8A77965_CLK_ZT,	CLK_PLL1_DIV2,	4, 1),
diff --git a/drivers/clk/renesas/rcar-gen3-cpg.c b/drivers/clk/renesas/rcar-gen3-cpg.c
index dcd4ac389326b..13071198117ca 100644
--- a/drivers/clk/renesas/rcar-gen3-cpg.c
+++ b/drivers/clk/renesas/rcar-gen3-cpg.c
@@ -96,6 +96,7 @@ struct cpg_z_clk {
 	void __iomem *reg;
 	void __iomem *kick_reg;
 	unsigned long mask;
+	unsigned int fixed_div;
 };
 
 #define to_z_clk(_hw)	container_of(_hw, struct cpg_z_clk, hw)
@@ -110,17 +111,18 @@ static unsigned long cpg_z_clk_recalc_rate(struct clk_hw *hw,
 	val = readl(zclk->reg) & zclk->mask;
 	mult = 32 - (val >> __ffs(zclk->mask));
 
-	/* Factor of 2 is for fixed divider */
-	return DIV_ROUND_CLOSEST_ULL((u64)parent_rate * mult, 32 * 2);
+	return DIV_ROUND_CLOSEST_ULL((u64)parent_rate * mult,
+				     32 * zclk->fixed_div);
 }
 
 static long cpg_z_clk_round_rate(struct clk_hw *hw, unsigned long rate,
 				 unsigned long *parent_rate)
 {
-	/* Factor of 2 is for fixed divider */
-	unsigned long prate = *parent_rate / 2;
+	struct cpg_z_clk *zclk = to_z_clk(hw);
+	unsigned long prate;
 	unsigned int mult;
 
+	prate = *parent_rate / zclk->fixed_div;
 	mult = div_u64(rate * 32ULL, prate);
 	mult = clamp(mult, 1U, 32U);
 
@@ -134,8 +136,8 @@ static int cpg_z_clk_set_rate(struct clk_hw *hw, unsigned long rate,
 	unsigned int mult;
 	unsigned int i;
 
-	/* Factor of 2 is for fixed divider */
-	mult = DIV_ROUND_CLOSEST_ULL(rate * 32ULL * 2, parent_rate);
+	mult = DIV_ROUND_CLOSEST_ULL(rate * 32ULL * zclk->fixed_div,
+				     parent_rate);
 	mult = clamp(mult, 1U, 32U);
 
 	if (readl(zclk->kick_reg) & CPG_FRQCRB_KICK)
@@ -178,7 +180,8 @@ static const struct clk_ops cpg_z_clk_ops = {
 static struct clk * __init cpg_z_clk_register(const char *name,
 					      const char *parent_name,
 					      void __iomem *reg,
-					      unsigned long mask)
+					      unsigned long mask,
+					      unsigned int div)
 {
 	struct clk_init_data init;
 	struct cpg_z_clk *zclk;
@@ -198,6 +201,7 @@ static struct clk * __init cpg_z_clk_register(const char *name,
 	zclk->kick_reg = reg + CPG_FRQCRB;
 	zclk->hw.init = &init;
 	zclk->mask = mask;
+	zclk->fixed_div = div; /* PLLVCO x 1/div x SYS-CPU divider */
 
 	clk = clk_register(NULL, &zclk->hw);
 	if (IS_ERR(clk))
@@ -658,11 +662,13 @@ struct clk * __init rcar_gen3_cpg_clk_register(struct device *dev,
 
 	case CLK_TYPE_GEN3_Z:
 		return cpg_z_clk_register(core->name, __clk_get_name(parent),
-					  base, CPG_FRQCRC_ZFC_MASK);
+					  base, CPG_FRQCRC_ZFC_MASK,
+					  core->div);
 
 	case CLK_TYPE_GEN3_Z2:
 		return cpg_z_clk_register(core->name, __clk_get_name(parent),
-					  base, CPG_FRQCRC_Z2FC_MASK);
+					  base, CPG_FRQCRC_Z2FC_MASK,
+					  core->div);
 
 	case CLK_TYPE_GEN3_OSC:
 		/*
diff --git a/drivers/clk/renesas/rcar-gen3-cpg.h b/drivers/clk/renesas/rcar-gen3-cpg.h
index eac1b057455a9..8029366253308 100644
--- a/drivers/clk/renesas/rcar-gen3-cpg.h
+++ b/drivers/clk/renesas/rcar-gen3-cpg.h
@@ -3,6 +3,7 @@
  * R-Car Gen3 Clock Pulse Generator
  *
  * Copyright (C) 2015-2018 Glider bvba
+ * Copyright (C) 2018 Renesas Electronics Corp.
  *
  */
 
@@ -51,6 +52,9 @@ enum rcar_gen3_clk_types {
 	DEF_BASE(_name, _id, CLK_TYPE_GEN3_RCKSEL,	\
 		 (_parent0) << 16 | (_parent1),	.div = (_div0) << 16 | (_div1))
 
+#define DEF_GEN3_Z(_name, _id, _type, _parent, _div)	\
+	DEF_BASE(_name, _id, _type, _parent, .div = _div)
+
 struct rcar_gen3_cpg_pll_config {
 	u8 extal_div;
 	u8 pll1_mult;

From 10d9ea5100c89afd677a202036e0e34e129a6c52 Mon Sep 17 00:00:00 2001
From: Simon Horman <horms+renesas@verge.net.au>
Date: Mon, 25 Mar 2019 17:35:51 +0100
Subject: [PATCH 05/17] clk: renesas: rcar-gen3: Parameterise Z and Z2 clock
 offset

Parameterise the offset of control bits within the FRQCRC register
for Z and Z2 clocks.

This is in preparation for supporting the Z2 clock on the R-Car E3
(r8a77990) SoC which uses a different offset for control bits to
other, already, supported SoCs.

As suggested by Geert Uytterhoeven.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 drivers/clk/renesas/r8a774a1-cpg-mssr.c |  4 ++--
 drivers/clk/renesas/r8a7795-cpg-mssr.c  |  4 ++--
 drivers/clk/renesas/r8a7796-cpg-mssr.c  |  4 ++--
 drivers/clk/renesas/r8a77965-cpg-mssr.c |  2 +-
 drivers/clk/renesas/rcar-gen3-cpg.c     | 15 ++++-----------
 drivers/clk/renesas/rcar-gen3-cpg.h     |  4 ++--
 6 files changed, 13 insertions(+), 20 deletions(-)

diff --git a/drivers/clk/renesas/r8a774a1-cpg-mssr.c b/drivers/clk/renesas/r8a774a1-cpg-mssr.c
index 99bcb7c8022f6..8e7bb43b6848b 100644
--- a/drivers/clk/renesas/r8a774a1-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a774a1-cpg-mssr.c
@@ -71,8 +71,8 @@ static const struct cpg_core_clk r8a774a1_core_clks[] __initconst = {
 	DEF_GEN3_OSC(".r",      CLK_RINT,          CLK_EXTAL,      32),
 
 	/* Core Clock Outputs */
-	DEF_GEN3_Z("z",		R8A774A1_CLK_Z,     CLK_TYPE_GEN3_Z, CLK_PLL0, 2),
-	DEF_GEN3_Z("z2",	R8A774A1_CLK_Z2,    CLK_TYPE_GEN3_Z2, CLK_PLL2, 2),
+	DEF_GEN3_Z("z",		R8A774A1_CLK_Z,     CLK_TYPE_GEN3_Z,  CLK_PLL0, 2, 8),
+	DEF_GEN3_Z("z2",	R8A774A1_CLK_Z2,    CLK_TYPE_GEN3_Z2, CLK_PLL2, 2, 0),
 	DEF_FIXED("ztr",        R8A774A1_CLK_ZTR,   CLK_PLL1_DIV2,  6, 1),
 	DEF_FIXED("ztrd2",      R8A774A1_CLK_ZTRD2, CLK_PLL1_DIV2, 12, 1),
 	DEF_FIXED("zt",         R8A774A1_CLK_ZT,    CLK_PLL1_DIV2,  4, 1),
diff --git a/drivers/clk/renesas/r8a7795-cpg-mssr.c b/drivers/clk/renesas/r8a7795-cpg-mssr.c
index d4cf1c91533ed..d09c0abb032dd 100644
--- a/drivers/clk/renesas/r8a7795-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a7795-cpg-mssr.c
@@ -74,8 +74,8 @@ static struct cpg_core_clk r8a7795_core_clks[] __initdata = {
 	DEF_GEN3_OSC(".r",      CLK_RINT,          CLK_EXTAL,      32),
 
 	/* Core Clock Outputs */
-	DEF_GEN3_Z("z",         R8A7795_CLK_Z,	   CLK_TYPE_GEN3_Z,  CLK_PLL0, 2),
-	DEF_GEN3_Z("z2",        R8A7795_CLK_Z2,    CLK_TYPE_GEN3_Z2, CLK_PLL2, 2),
+	DEF_GEN3_Z("z",         R8A7795_CLK_Z,     CLK_TYPE_GEN3_Z,  CLK_PLL0, 2, 8),
+	DEF_GEN3_Z("z2",        R8A7795_CLK_Z2,    CLK_TYPE_GEN3_Z2, CLK_PLL2, 2, 0),
 	DEF_FIXED("ztr",        R8A7795_CLK_ZTR,   CLK_PLL1_DIV2,  6, 1),
 	DEF_FIXED("ztrd2",      R8A7795_CLK_ZTRD2, CLK_PLL1_DIV2, 12, 1),
 	DEF_FIXED("zt",         R8A7795_CLK_ZT,    CLK_PLL1_DIV2,  4, 1),
diff --git a/drivers/clk/renesas/r8a7796-cpg-mssr.c b/drivers/clk/renesas/r8a7796-cpg-mssr.c
index 77254f2b4519e..7efd0311dcbd8 100644
--- a/drivers/clk/renesas/r8a7796-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a7796-cpg-mssr.c
@@ -74,8 +74,8 @@ static const struct cpg_core_clk r8a7796_core_clks[] __initconst = {
 	DEF_GEN3_OSC(".r",      CLK_RINT,          CLK_EXTAL,      32),
 
 	/* Core Clock Outputs */
-	DEF_GEN3_Z("z",         R8A7796_CLK_Z,     CLK_TYPE_GEN3_Z,  CLK_PLL0, 2),
-	DEF_GEN3_Z("z2",        R8A7796_CLK_Z2,    CLK_TYPE_GEN3_Z2, CLK_PLL2, 2),
+	DEF_GEN3_Z("z",         R8A7796_CLK_Z,     CLK_TYPE_GEN3_Z,  CLK_PLL0, 2, 8),
+	DEF_GEN3_Z("z2",        R8A7796_CLK_Z2,    CLK_TYPE_GEN3_Z2, CLK_PLL2, 2, 0),
 	DEF_FIXED("ztr",        R8A7796_CLK_ZTR,   CLK_PLL1_DIV2,  6, 1),
 	DEF_FIXED("ztrd2",      R8A7796_CLK_ZTRD2, CLK_PLL1_DIV2, 12, 1),
 	DEF_FIXED("zt",         R8A7796_CLK_ZT,    CLK_PLL1_DIV2,  4, 1),
diff --git a/drivers/clk/renesas/r8a77965-cpg-mssr.c b/drivers/clk/renesas/r8a77965-cpg-mssr.c
index f8f73558c1ec8..fefa26a1a797d 100644
--- a/drivers/clk/renesas/r8a77965-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a77965-cpg-mssr.c
@@ -71,7 +71,7 @@ static const struct cpg_core_clk r8a77965_core_clks[] __initconst = {
 	DEF_GEN3_OSC(".r",	CLK_RINT,		CLK_EXTAL,	32),
 
 	/* Core Clock Outputs */
-	DEF_GEN3_Z("z",		R8A77965_CLK_Z,		CLK_TYPE_GEN3_Z,  CLK_PLL0, 2),
+	DEF_GEN3_Z("z",		R8A77965_CLK_Z,		CLK_TYPE_GEN3_Z,  CLK_PLL0, 2, 8),
 	DEF_FIXED("ztr",	R8A77965_CLK_ZTR,	CLK_PLL1_DIV2,	6, 1),
 	DEF_FIXED("ztrd2",	R8A77965_CLK_ZTRD2,	CLK_PLL1_DIV2,	12, 1),
 	DEF_FIXED("zt",		R8A77965_CLK_ZT,	CLK_PLL1_DIV2,	4, 1),
diff --git a/drivers/clk/renesas/rcar-gen3-cpg.c b/drivers/clk/renesas/rcar-gen3-cpg.c
index 13071198117ca..8d51dbffa1206 100644
--- a/drivers/clk/renesas/rcar-gen3-cpg.c
+++ b/drivers/clk/renesas/rcar-gen3-cpg.c
@@ -88,8 +88,6 @@ static void cpg_simple_notifier_register(struct raw_notifier_head *notifiers,
 #define CPG_FRQCRB			0x00000004
 #define CPG_FRQCRB_KICK			BIT(31)
 #define CPG_FRQCRC			0x000000e0
-#define CPG_FRQCRC_ZFC_MASK		GENMASK(12, 8)
-#define CPG_FRQCRC_Z2FC_MASK		GENMASK(4, 0)
 
 struct cpg_z_clk {
 	struct clk_hw hw;
@@ -180,8 +178,8 @@ static const struct clk_ops cpg_z_clk_ops = {
 static struct clk * __init cpg_z_clk_register(const char *name,
 					      const char *parent_name,
 					      void __iomem *reg,
-					      unsigned long mask,
-					      unsigned int div)
+					      unsigned int div,
+					      unsigned int offset)
 {
 	struct clk_init_data init;
 	struct cpg_z_clk *zclk;
@@ -200,7 +198,7 @@ static struct clk * __init cpg_z_clk_register(const char *name,
 	zclk->reg = reg + CPG_FRQCRC;
 	zclk->kick_reg = reg + CPG_FRQCRB;
 	zclk->hw.init = &init;
-	zclk->mask = mask;
+	zclk->mask = GENMASK(offset + 4, offset);
 	zclk->fixed_div = div; /* PLLVCO x 1/div x SYS-CPU divider */
 
 	clk = clk_register(NULL, &zclk->hw);
@@ -661,14 +659,9 @@ struct clk * __init rcar_gen3_cpg_clk_register(struct device *dev,
 		break;
 
 	case CLK_TYPE_GEN3_Z:
-		return cpg_z_clk_register(core->name, __clk_get_name(parent),
-					  base, CPG_FRQCRC_ZFC_MASK,
-					  core->div);
-
 	case CLK_TYPE_GEN3_Z2:
 		return cpg_z_clk_register(core->name, __clk_get_name(parent),
-					  base, CPG_FRQCRC_Z2FC_MASK,
-					  core->div);
+					  base, core->div, core->offset);
 
 	case CLK_TYPE_GEN3_OSC:
 		/*
diff --git a/drivers/clk/renesas/rcar-gen3-cpg.h b/drivers/clk/renesas/rcar-gen3-cpg.h
index 8029366253308..9b4bb763f5991 100644
--- a/drivers/clk/renesas/rcar-gen3-cpg.h
+++ b/drivers/clk/renesas/rcar-gen3-cpg.h
@@ -52,8 +52,8 @@ enum rcar_gen3_clk_types {
 	DEF_BASE(_name, _id, CLK_TYPE_GEN3_RCKSEL,	\
 		 (_parent0) << 16 | (_parent1),	.div = (_div0) << 16 | (_div1))
 
-#define DEF_GEN3_Z(_name, _id, _type, _parent, _div)	\
-	DEF_BASE(_name, _id, _type, _parent, .div = _div)
+#define DEF_GEN3_Z(_name, _id, _type, _parent, _div, _offset)	\
+	DEF_BASE(_name, _id, _type, _parent, .div = _div, .offset = _offset)
 
 struct rcar_gen3_cpg_pll_config {
 	u8 extal_div;

From e0836e36384321ab1b4af05ab441c0c59a972596 Mon Sep 17 00:00:00 2001
From: Simon Horman <horms+renesas@verge.net.au>
Date: Mon, 25 Mar 2019 17:35:52 +0100
Subject: [PATCH 06/17] clk: renesas: rcar-gen3: Remove CLK_TYPE_GEN3_Z2

After recent reworking of Z and Z2 clk handling
CLK_TYPE_GEN3_Z and CLK_TYPE_GEN3_Z2 have come to have precisely
the same meaning. Remove this redundancy by eliminating the latter.

This is not expected to have any run-time effect.

As suggested by Geert Uytterhoeven.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 drivers/clk/renesas/r8a774a1-cpg-mssr.c | 2 +-
 drivers/clk/renesas/r8a7795-cpg-mssr.c  | 2 +-
 drivers/clk/renesas/r8a7796-cpg-mssr.c  | 2 +-
 drivers/clk/renesas/rcar-gen3-cpg.c     | 1 -
 drivers/clk/renesas/rcar-gen3-cpg.h     | 1 -
 5 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/clk/renesas/r8a774a1-cpg-mssr.c b/drivers/clk/renesas/r8a774a1-cpg-mssr.c
index 8e7bb43b6848b..44161fd0a09ca 100644
--- a/drivers/clk/renesas/r8a774a1-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a774a1-cpg-mssr.c
@@ -72,7 +72,7 @@ static const struct cpg_core_clk r8a774a1_core_clks[] __initconst = {
 
 	/* Core Clock Outputs */
 	DEF_GEN3_Z("z",		R8A774A1_CLK_Z,     CLK_TYPE_GEN3_Z,  CLK_PLL0, 2, 8),
-	DEF_GEN3_Z("z2",	R8A774A1_CLK_Z2,    CLK_TYPE_GEN3_Z2, CLK_PLL2, 2, 0),
+	DEF_GEN3_Z("z2",	R8A774A1_CLK_Z2,    CLK_TYPE_GEN3_Z,  CLK_PLL2, 2, 0),
 	DEF_FIXED("ztr",        R8A774A1_CLK_ZTR,   CLK_PLL1_DIV2,  6, 1),
 	DEF_FIXED("ztrd2",      R8A774A1_CLK_ZTRD2, CLK_PLL1_DIV2, 12, 1),
 	DEF_FIXED("zt",         R8A774A1_CLK_ZT,    CLK_PLL1_DIV2,  4, 1),
diff --git a/drivers/clk/renesas/r8a7795-cpg-mssr.c b/drivers/clk/renesas/r8a7795-cpg-mssr.c
index d09c0abb032dd..8287816523c3c 100644
--- a/drivers/clk/renesas/r8a7795-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a7795-cpg-mssr.c
@@ -75,7 +75,7 @@ static struct cpg_core_clk r8a7795_core_clks[] __initdata = {
 
 	/* Core Clock Outputs */
 	DEF_GEN3_Z("z",         R8A7795_CLK_Z,     CLK_TYPE_GEN3_Z,  CLK_PLL0, 2, 8),
-	DEF_GEN3_Z("z2",        R8A7795_CLK_Z2,    CLK_TYPE_GEN3_Z2, CLK_PLL2, 2, 0),
+	DEF_GEN3_Z("z2",        R8A7795_CLK_Z2,    CLK_TYPE_GEN3_Z,  CLK_PLL2, 2, 0),
 	DEF_FIXED("ztr",        R8A7795_CLK_ZTR,   CLK_PLL1_DIV2,  6, 1),
 	DEF_FIXED("ztrd2",      R8A7795_CLK_ZTRD2, CLK_PLL1_DIV2, 12, 1),
 	DEF_FIXED("zt",         R8A7795_CLK_ZT,    CLK_PLL1_DIV2,  4, 1),
diff --git a/drivers/clk/renesas/r8a7796-cpg-mssr.c b/drivers/clk/renesas/r8a7796-cpg-mssr.c
index 7efd0311dcbd8..5cde1bff89235 100644
--- a/drivers/clk/renesas/r8a7796-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a7796-cpg-mssr.c
@@ -75,7 +75,7 @@ static const struct cpg_core_clk r8a7796_core_clks[] __initconst = {
 
 	/* Core Clock Outputs */
 	DEF_GEN3_Z("z",         R8A7796_CLK_Z,     CLK_TYPE_GEN3_Z,  CLK_PLL0, 2, 8),
-	DEF_GEN3_Z("z2",        R8A7796_CLK_Z2,    CLK_TYPE_GEN3_Z2, CLK_PLL2, 2, 0),
+	DEF_GEN3_Z("z2",        R8A7796_CLK_Z2,    CLK_TYPE_GEN3_Z,  CLK_PLL2, 2, 0),
 	DEF_FIXED("ztr",        R8A7796_CLK_ZTR,   CLK_PLL1_DIV2,  6, 1),
 	DEF_FIXED("ztrd2",      R8A7796_CLK_ZTRD2, CLK_PLL1_DIV2, 12, 1),
 	DEF_FIXED("zt",         R8A7796_CLK_ZT,    CLK_PLL1_DIV2,  4, 1),
diff --git a/drivers/clk/renesas/rcar-gen3-cpg.c b/drivers/clk/renesas/rcar-gen3-cpg.c
index 8d51dbffa1206..62220d83b497f 100644
--- a/drivers/clk/renesas/rcar-gen3-cpg.c
+++ b/drivers/clk/renesas/rcar-gen3-cpg.c
@@ -659,7 +659,6 @@ struct clk * __init rcar_gen3_cpg_clk_register(struct device *dev,
 		break;
 
 	case CLK_TYPE_GEN3_Z:
-	case CLK_TYPE_GEN3_Z2:
 		return cpg_z_clk_register(core->name, __clk_get_name(parent),
 					  base, core->div, core->offset);
 
diff --git a/drivers/clk/renesas/rcar-gen3-cpg.h b/drivers/clk/renesas/rcar-gen3-cpg.h
index 9b4bb763f5991..15700d219a05d 100644
--- a/drivers/clk/renesas/rcar-gen3-cpg.h
+++ b/drivers/clk/renesas/rcar-gen3-cpg.h
@@ -21,7 +21,6 @@ enum rcar_gen3_clk_types {
 	CLK_TYPE_GEN3_R,
 	CLK_TYPE_GEN3_MDSEL,	/* Select parent/divider using mode pin */
 	CLK_TYPE_GEN3_Z,
-	CLK_TYPE_GEN3_Z2,
 	CLK_TYPE_GEN3_OSC,	/* OSC EXTAL predivider and fixed divider */
 	CLK_TYPE_GEN3_RCKSEL,	/* Select parent/divider using RCKCR.CKSEL */
 	CLK_TYPE_GEN3_RPCSRC,

From cb8be119d21d8a0affc3598a928dd0baf5da238f Mon Sep 17 00:00:00 2001
From: Simon Horman <horms+renesas@verge.net.au>
Date: Mon, 25 Mar 2019 17:35:53 +0100
Subject: [PATCH 07/17] math64: New DIV64_U64_ROUND_CLOSEST helper

Provide DIV64_U64_ROUND_CLOSEST helper which performs division rounded to
the closest integer using an unsigned 64bit dividend and divisor.

This will be used in a follow-up patch to allow calculation of clock
divisors with high frequency parents in the R-Car Gen3 CPG MSSR driver
where overflow occurs if either the dividend or divisor is 32bit.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 include/linux/math64.h | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/include/linux/math64.h b/include/linux/math64.h
index bb2c84afb80c6..65bef21cdddbd 100644
--- a/include/linux/math64.h
+++ b/include/linux/math64.h
@@ -284,4 +284,17 @@ static inline u64 mul_u64_u32_div(u64 a, u32 mul, u32 divisor)
 #define DIV64_U64_ROUND_UP(ll, d)	\
 	({ u64 _tmp = (d); div64_u64((ll) + _tmp - 1, _tmp); })
 
+/**
+ * DIV64_U64_ROUND_CLOSEST - unsigned 64bit divide with 64bit divisor rounded to nearest integer
+ * @dividend: unsigned 64bit dividend
+ * @divisor: unsigned 64bit divisor
+ *
+ * Divide unsigned 64bit dividend by unsigned 64bit divisor
+ * and round to closest integer.
+ *
+ * Return: dividend / divisor rounded to nearest integer
+ */
+#define DIV64_U64_ROUND_CLOSEST(dividend, divisor)	\
+	({ u64 _tmp = (divisor); div64_u64((dividend) + _tmp / 2, _tmp); })
+
 #endif /* _LINUX_MATH64_H */

From 71119b54a2e6d9345f22d9501c4d3c28b06f955a Mon Sep 17 00:00:00 2001
From: Simon Horman <horms+renesas@verge.net.au>
Date: Mon, 25 Mar 2019 17:35:54 +0100
Subject: [PATCH 08/17] clk: renesas: rcar-gen3: Support Z and Z2 clocks with
 high frequency parents

Support Z and Z2 clocks with parent frequencies greater than UINT32_MAX Hz
(~4.29GHz).

The DIV_ROUND_CLOSEST_ULL() macro accepts a 64bit dividend and 32bit
divisor. This leads to truncation of the divisor, which is the Z or Z2
parent clock frequency in HZ, on platforms where frequency of that clock is
greater than UINT32_MAX Hz.

To resolve this problem the DIV64_U64_ROUND_CLOSEST() macro, which takes
on an unsigned 64bit dividend and divisor, is used.

An earlier version of this patch made use of the existing
DIV_ROUND_CLOSEST() macro, which accepts the prevailing type of the
dividend and divisor. However, this does not compile on 32bit systems, such
as i386 and mips, when called with the types used at this call site, an
unsigned long long dividend and unsigned long divisor.

This work is in preparation for supporting the Z2 clock on the
R-Car Gen3 E3 (r8a77990) SoC which has a 4.8GHz parent clock.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 drivers/clk/renesas/rcar-gen3-cpg.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/clk/renesas/rcar-gen3-cpg.c b/drivers/clk/renesas/rcar-gen3-cpg.c
index 62220d83b497f..d5fb768b089ff 100644
--- a/drivers/clk/renesas/rcar-gen3-cpg.c
+++ b/drivers/clk/renesas/rcar-gen3-cpg.c
@@ -134,8 +134,8 @@ static int cpg_z_clk_set_rate(struct clk_hw *hw, unsigned long rate,
 	unsigned int mult;
 	unsigned int i;
 
-	mult = DIV_ROUND_CLOSEST_ULL(rate * 32ULL * zclk->fixed_div,
-				     parent_rate);
+	mult = DIV64_U64_ROUND_CLOSEST(rate * 32ULL * zclk->fixed_div,
+				       parent_rate);
 	mult = clamp(mult, 1U, 32U);
 
 	if (readl(zclk->kick_reg) & CPG_FRQCRB_KICK)

From 787fe096fe42829f3091888835562ffce4d23bff Mon Sep 17 00:00:00 2001
From: Takeshi Kihara <takeshi.kihara.df@renesas.com>
Date: Mon, 25 Mar 2019 17:35:55 +0100
Subject: [PATCH 09/17] clk: renesas: r8a77990: Add Z2 clock

Adds support for R-Car E3 (r8a77990) Z2 clock.

Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
[simon: reworked changelog; rebased]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 drivers/clk/renesas/r8a77990-cpg-mssr.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/clk/renesas/r8a77990-cpg-mssr.c b/drivers/clk/renesas/r8a77990-cpg-mssr.c
index 9a278c75c918c..99f602cb30a55 100644
--- a/drivers/clk/renesas/r8a77990-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a77990-cpg-mssr.c
@@ -81,6 +81,7 @@ static const struct cpg_core_clk r8a77990_core_clks[] __initconst = {
 	/* Core Clock Outputs */
 	DEF_FIXED("za2",       R8A77990_CLK_ZA2,   CLK_PLL0D24,    1, 1),
 	DEF_FIXED("za8",       R8A77990_CLK_ZA8,   CLK_PLL0D8,     1, 1),
+	DEF_GEN3_Z("z2",       R8A77990_CLK_Z2,    CLK_TYPE_GEN3_Z, CLK_PLL0, 4, 8),
 	DEF_FIXED("ztr",       R8A77990_CLK_ZTR,   CLK_PLL1,       6, 1),
 	DEF_FIXED("zt",        R8A77990_CLK_ZT,    CLK_PLL1,       4, 1),
 	DEF_FIXED("zx",        R8A77990_CLK_ZX,    CLK_PLL1,       3, 1),

From 4aeed945b7024e454bafb4beb68b8c0298832efb Mon Sep 17 00:00:00 2001
From: Simon Horman <horms+renesas@verge.net.au>
Date: Mon, 25 Mar 2019 17:35:56 +0100
Subject: [PATCH 10/17] clk: renesas: r8a774c0: Add Z2 clock

Adds support for RZ/G2E (r8a774c0) Z2 clock.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Tested-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 drivers/clk/renesas/r8a774c0-cpg-mssr.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/clk/renesas/r8a774c0-cpg-mssr.c b/drivers/clk/renesas/r8a774c0-cpg-mssr.c
index 34e274f2a273a..57098b7e3d0ee 100644
--- a/drivers/clk/renesas/r8a774c0-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a774c0-cpg-mssr.c
@@ -81,6 +81,7 @@ static const struct cpg_core_clk r8a774c0_core_clks[] __initconst = {
 	/* Core Clock Outputs */
 	DEF_FIXED("za2",       R8A774C0_CLK_ZA2,   CLK_PLL0D24,    1, 1),
 	DEF_FIXED("za8",       R8A774C0_CLK_ZA8,   CLK_PLL0D8,     1, 1),
+	DEF_GEN3_Z("z2",       R8A774C0_CLK_Z2,    CLK_TYPE_GEN3_Z, CLK_PLL0, 4, 8),
 	DEF_FIXED("ztr",       R8A774C0_CLK_ZTR,   CLK_PLL1,       6, 1),
 	DEF_FIXED("zt",        R8A774C0_CLK_ZT,    CLK_PLL1,       4, 1),
 	DEF_FIXED("zx",        R8A774C0_CLK_ZX,    CLK_PLL1,       3, 1),

From 8d36fdcce21c1713eacf45380696f8cec3d724bf Mon Sep 17 00:00:00 2001
From: Kazuya Mizuguchi <kazuya.mizuguchi.ks@renesas.com>
Date: Wed, 25 Jul 2018 18:10:21 +0900
Subject: [PATCH 11/17] clk: renesas: rcar-gen3: Correct parent clock of
 EHCI/OHCI

According to the R-Car Gen3 Hardware Manual Rev. 1.00, and the RZ/G2
Hardware Manual Rev. 0.61, the parent clock of the EHCI/OHCI module
clocks on R-Car Gen3 and RZ/G2 SoCs is S3D2.

Signed-off-by: Kazuya Mizuguchi <kazuya.mizuguchi.ks@renesas.com>
[takeshi: Update R-Car H3, M3-N, and E3]
Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
[geert: Update RZ/G2M and RZ/G2E]
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
---
 drivers/clk/renesas/r8a774a1-cpg-mssr.c | 4 ++--
 drivers/clk/renesas/r8a774c0-cpg-mssr.c | 2 +-
 drivers/clk/renesas/r8a7795-cpg-mssr.c  | 8 ++++----
 drivers/clk/renesas/r8a7796-cpg-mssr.c  | 4 ++--
 drivers/clk/renesas/r8a77965-cpg-mssr.c | 4 ++--
 drivers/clk/renesas/r8a77990-cpg-mssr.c | 2 +-
 6 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/drivers/clk/renesas/r8a774a1-cpg-mssr.c b/drivers/clk/renesas/r8a774a1-cpg-mssr.c
index 44161fd0a09ca..bce0e6d6d02c7 100644
--- a/drivers/clk/renesas/r8a774a1-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a774a1-cpg-mssr.c
@@ -165,8 +165,8 @@ static const struct mssr_mod_clk r8a774a1_mod_clks[] __initconst = {
 	DEF_MOD("vspd0",		 623,	R8A774A1_CLK_S0D2),
 	DEF_MOD("vspb",			 626,	R8A774A1_CLK_S0D1),
 	DEF_MOD("vspi0",		 631,	R8A774A1_CLK_S0D1),
-	DEF_MOD("ehci1",		 702,	R8A774A1_CLK_S3D4),
-	DEF_MOD("ehci0",		 703,	R8A774A1_CLK_S3D4),
+	DEF_MOD("ehci1",		 702,	R8A774A1_CLK_S3D2),
+	DEF_MOD("ehci0",		 703,	R8A774A1_CLK_S3D2),
 	DEF_MOD("hsusb",		 704,	R8A774A1_CLK_S3D4),
 	DEF_MOD("csi20",		 714,	R8A774A1_CLK_CSI0),
 	DEF_MOD("csi40",		 716,	R8A774A1_CLK_CSI0),
diff --git a/drivers/clk/renesas/r8a774c0-cpg-mssr.c b/drivers/clk/renesas/r8a774c0-cpg-mssr.c
index 57098b7e3d0ee..d095787f7d851 100644
--- a/drivers/clk/renesas/r8a774c0-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a774c0-cpg-mssr.c
@@ -178,7 +178,7 @@ static const struct mssr_mod_clk r8a774c0_mod_clks[] __initconst = {
 	DEF_MOD("vspb",			 626,	R8A774C0_CLK_S0D1),
 	DEF_MOD("vspi0",		 631,	R8A774C0_CLK_S0D1),
 
-	DEF_MOD("ehci0",		 703,	R8A774C0_CLK_S3D4),
+	DEF_MOD("ehci0",		 703,	R8A774C0_CLK_S3D2),
 	DEF_MOD("hsusb",		 704,	R8A774C0_CLK_S3D4),
 	DEF_MOD("csi40",		 716,	R8A774C0_CLK_CSI0),
 	DEF_MOD("du1",			 723,	R8A774C0_CLK_S1D1),
diff --git a/drivers/clk/renesas/r8a7795-cpg-mssr.c b/drivers/clk/renesas/r8a7795-cpg-mssr.c
index 8287816523c3c..b9e42da38b72b 100644
--- a/drivers/clk/renesas/r8a7795-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a7795-cpg-mssr.c
@@ -195,10 +195,10 @@ static struct mssr_mod_clk r8a7795_mod_clks[] __initdata = {
 	DEF_MOD("vspi2",		 629,	R8A7795_CLK_S2D1), /* ES1.x */
 	DEF_MOD("vspi1",		 630,	R8A7795_CLK_S0D1),
 	DEF_MOD("vspi0",		 631,	R8A7795_CLK_S0D1),
-	DEF_MOD("ehci3",		 700,	R8A7795_CLK_S3D4),
-	DEF_MOD("ehci2",		 701,	R8A7795_CLK_S3D4),
-	DEF_MOD("ehci1",		 702,	R8A7795_CLK_S3D4),
-	DEF_MOD("ehci0",		 703,	R8A7795_CLK_S3D4),
+	DEF_MOD("ehci3",		 700,	R8A7795_CLK_S3D2),
+	DEF_MOD("ehci2",		 701,	R8A7795_CLK_S3D2),
+	DEF_MOD("ehci1",		 702,	R8A7795_CLK_S3D2),
+	DEF_MOD("ehci0",		 703,	R8A7795_CLK_S3D2),
 	DEF_MOD("hsusb",		 704,	R8A7795_CLK_S3D4),
 	DEF_MOD("hsusb3",		 705,	R8A7795_CLK_S3D4),
 	DEF_MOD("csi21",		 713,	R8A7795_CLK_CSI0), /* ES1.x */
diff --git a/drivers/clk/renesas/r8a7796-cpg-mssr.c b/drivers/clk/renesas/r8a7796-cpg-mssr.c
index 5cde1bff89235..97b58f1311144 100644
--- a/drivers/clk/renesas/r8a7796-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a7796-cpg-mssr.c
@@ -177,8 +177,8 @@ static const struct mssr_mod_clk r8a7796_mod_clks[] __initconst = {
 	DEF_MOD("vspd0",		 623,	R8A7796_CLK_S0D2),
 	DEF_MOD("vspb",			 626,	R8A7796_CLK_S0D1),
 	DEF_MOD("vspi0",		 631,	R8A7796_CLK_S0D1),
-	DEF_MOD("ehci1",		 702,	R8A7796_CLK_S3D4),
-	DEF_MOD("ehci0",		 703,	R8A7796_CLK_S3D4),
+	DEF_MOD("ehci1",		 702,	R8A7796_CLK_S3D2),
+	DEF_MOD("ehci0",		 703,	R8A7796_CLK_S3D2),
 	DEF_MOD("hsusb",		 704,	R8A7796_CLK_S3D4),
 	DEF_MOD("csi20",		 714,	R8A7796_CLK_CSI0),
 	DEF_MOD("csi40",		 716,	R8A7796_CLK_CSI0),
diff --git a/drivers/clk/renesas/r8a77965-cpg-mssr.c b/drivers/clk/renesas/r8a77965-cpg-mssr.c
index fefa26a1a797d..ab25bd5f13718 100644
--- a/drivers/clk/renesas/r8a77965-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a77965-cpg-mssr.c
@@ -175,8 +175,8 @@ static const struct mssr_mod_clk r8a77965_mod_clks[] __initconst = {
 	DEF_MOD("vspb",			626,	R8A77965_CLK_S0D1),
 	DEF_MOD("vspi0",		631,	R8A77965_CLK_S0D1),
 
-	DEF_MOD("ehci1",		702,	R8A77965_CLK_S3D4),
-	DEF_MOD("ehci0",		703,	R8A77965_CLK_S3D4),
+	DEF_MOD("ehci1",		702,	R8A77965_CLK_S3D2),
+	DEF_MOD("ehci0",		703,	R8A77965_CLK_S3D2),
 	DEF_MOD("hsusb",		704,	R8A77965_CLK_S3D4),
 	DEF_MOD("csi20",		714,	R8A77965_CLK_CSI0),
 	DEF_MOD("csi40",		716,	R8A77965_CLK_CSI0),
diff --git a/drivers/clk/renesas/r8a77990-cpg-mssr.c b/drivers/clk/renesas/r8a77990-cpg-mssr.c
index 99f602cb30a55..3f22b8565648d 100644
--- a/drivers/clk/renesas/r8a77990-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a77990-cpg-mssr.c
@@ -181,7 +181,7 @@ static const struct mssr_mod_clk r8a77990_mod_clks[] __initconst = {
 	DEF_MOD("vspb",			 626,	R8A77990_CLK_S0D1),
 	DEF_MOD("vspi0",		 631,	R8A77990_CLK_S0D1),
 
-	DEF_MOD("ehci0",		 703,	R8A77990_CLK_S3D4),
+	DEF_MOD("ehci0",		 703,	R8A77990_CLK_S3D2),
 	DEF_MOD("hsusb",		 704,	R8A77990_CLK_S3D4),
 	DEF_MOD("csi40",		 716,	R8A77990_CLK_CSI0),
 	DEF_MOD("du1",			 723,	R8A77990_CLK_S1D1),

From c2182095c850a02e150613ac026be99ce1c2ff9f Mon Sep 17 00:00:00 2001
From: Kazuya Mizuguchi <kazuya.mizuguchi.ks@renesas.com>
Date: Wed, 25 Jul 2018 18:07:05 +0900
Subject: [PATCH 12/17] clk: renesas: rcar-gen3: Correct parent clock of HS-USB

According to the R-Car Gen3 Hardware Manual Rev. 1.00, and the RZ/G2
Hardware Manual Rev. 0.61, the parent clock of the HS-USB module
clocks on R-Car Gen3 and RZ/G2 SoCs is S3D2.

Signed-off-by: Kazuya Mizuguchi <kazuya.mizuguchi.ks@renesas.com>
[takeshi: Update R-Car H3, M3-N, and E3]
Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
[geert: Update RZ/G2M and RZ/G2E]
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
---
 drivers/clk/renesas/r8a774a1-cpg-mssr.c | 2 +-
 drivers/clk/renesas/r8a774c0-cpg-mssr.c | 2 +-
 drivers/clk/renesas/r8a7795-cpg-mssr.c  | 4 ++--
 drivers/clk/renesas/r8a7796-cpg-mssr.c  | 2 +-
 drivers/clk/renesas/r8a77965-cpg-mssr.c | 2 +-
 drivers/clk/renesas/r8a77990-cpg-mssr.c | 2 +-
 6 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/clk/renesas/r8a774a1-cpg-mssr.c b/drivers/clk/renesas/r8a774a1-cpg-mssr.c
index bce0e6d6d02c7..676e6a1120900 100644
--- a/drivers/clk/renesas/r8a774a1-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a774a1-cpg-mssr.c
@@ -167,7 +167,7 @@ static const struct mssr_mod_clk r8a774a1_mod_clks[] __initconst = {
 	DEF_MOD("vspi0",		 631,	R8A774A1_CLK_S0D1),
 	DEF_MOD("ehci1",		 702,	R8A774A1_CLK_S3D2),
 	DEF_MOD("ehci0",		 703,	R8A774A1_CLK_S3D2),
-	DEF_MOD("hsusb",		 704,	R8A774A1_CLK_S3D4),
+	DEF_MOD("hsusb",		 704,	R8A774A1_CLK_S3D2),
 	DEF_MOD("csi20",		 714,	R8A774A1_CLK_CSI0),
 	DEF_MOD("csi40",		 716,	R8A774A1_CLK_CSI0),
 	DEF_MOD("du2",			 722,	R8A774A1_CLK_S2D1),
diff --git a/drivers/clk/renesas/r8a774c0-cpg-mssr.c b/drivers/clk/renesas/r8a774c0-cpg-mssr.c
index d095787f7d851..c33d3b0370812 100644
--- a/drivers/clk/renesas/r8a774c0-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a774c0-cpg-mssr.c
@@ -179,7 +179,7 @@ static const struct mssr_mod_clk r8a774c0_mod_clks[] __initconst = {
 	DEF_MOD("vspi0",		 631,	R8A774C0_CLK_S0D1),
 
 	DEF_MOD("ehci0",		 703,	R8A774C0_CLK_S3D2),
-	DEF_MOD("hsusb",		 704,	R8A774C0_CLK_S3D4),
+	DEF_MOD("hsusb",		 704,	R8A774C0_CLK_S3D2),
 	DEF_MOD("csi40",		 716,	R8A774C0_CLK_CSI0),
 	DEF_MOD("du1",			 723,	R8A774C0_CLK_S1D1),
 	DEF_MOD("du0",			 724,	R8A774C0_CLK_S1D1),
diff --git a/drivers/clk/renesas/r8a7795-cpg-mssr.c b/drivers/clk/renesas/r8a7795-cpg-mssr.c
index b9e42da38b72b..5b658b0861180 100644
--- a/drivers/clk/renesas/r8a7795-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a7795-cpg-mssr.c
@@ -199,8 +199,8 @@ static struct mssr_mod_clk r8a7795_mod_clks[] __initdata = {
 	DEF_MOD("ehci2",		 701,	R8A7795_CLK_S3D2),
 	DEF_MOD("ehci1",		 702,	R8A7795_CLK_S3D2),
 	DEF_MOD("ehci0",		 703,	R8A7795_CLK_S3D2),
-	DEF_MOD("hsusb",		 704,	R8A7795_CLK_S3D4),
-	DEF_MOD("hsusb3",		 705,	R8A7795_CLK_S3D4),
+	DEF_MOD("hsusb",		 704,	R8A7795_CLK_S3D2),
+	DEF_MOD("hsusb3",		 705,	R8A7795_CLK_S3D2),
 	DEF_MOD("csi21",		 713,	R8A7795_CLK_CSI0), /* ES1.x */
 	DEF_MOD("csi20",		 714,	R8A7795_CLK_CSI0),
 	DEF_MOD("csi41",		 715,	R8A7795_CLK_CSI0),
diff --git a/drivers/clk/renesas/r8a7796-cpg-mssr.c b/drivers/clk/renesas/r8a7796-cpg-mssr.c
index 97b58f1311144..fa1c1ac14d5ca 100644
--- a/drivers/clk/renesas/r8a7796-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a7796-cpg-mssr.c
@@ -179,7 +179,7 @@ static const struct mssr_mod_clk r8a7796_mod_clks[] __initconst = {
 	DEF_MOD("vspi0",		 631,	R8A7796_CLK_S0D1),
 	DEF_MOD("ehci1",		 702,	R8A7796_CLK_S3D2),
 	DEF_MOD("ehci0",		 703,	R8A7796_CLK_S3D2),
-	DEF_MOD("hsusb",		 704,	R8A7796_CLK_S3D4),
+	DEF_MOD("hsusb",		 704,	R8A7796_CLK_S3D2),
 	DEF_MOD("csi20",		 714,	R8A7796_CLK_CSI0),
 	DEF_MOD("csi40",		 716,	R8A7796_CLK_CSI0),
 	DEF_MOD("du2",			 722,	R8A7796_CLK_S2D1),
diff --git a/drivers/clk/renesas/r8a77965-cpg-mssr.c b/drivers/clk/renesas/r8a77965-cpg-mssr.c
index ab25bd5f13718..48a9add7d4db8 100644
--- a/drivers/clk/renesas/r8a77965-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a77965-cpg-mssr.c
@@ -177,7 +177,7 @@ static const struct mssr_mod_clk r8a77965_mod_clks[] __initconst = {
 
 	DEF_MOD("ehci1",		702,	R8A77965_CLK_S3D2),
 	DEF_MOD("ehci0",		703,	R8A77965_CLK_S3D2),
-	DEF_MOD("hsusb",		704,	R8A77965_CLK_S3D4),
+	DEF_MOD("hsusb",		704,	R8A77965_CLK_S3D2),
 	DEF_MOD("csi20",		714,	R8A77965_CLK_CSI0),
 	DEF_MOD("csi40",		716,	R8A77965_CLK_CSI0),
 	DEF_MOD("du3",			721,	R8A77965_CLK_S2D1),
diff --git a/drivers/clk/renesas/r8a77990-cpg-mssr.c b/drivers/clk/renesas/r8a77990-cpg-mssr.c
index 3f22b8565648d..3a88d2247cf5c 100644
--- a/drivers/clk/renesas/r8a77990-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a77990-cpg-mssr.c
@@ -182,7 +182,7 @@ static const struct mssr_mod_clk r8a77990_mod_clks[] __initconst = {
 	DEF_MOD("vspi0",		 631,	R8A77990_CLK_S0D1),
 
 	DEF_MOD("ehci0",		 703,	R8A77990_CLK_S3D2),
-	DEF_MOD("hsusb",		 704,	R8A77990_CLK_S3D4),
+	DEF_MOD("hsusb",		 704,	R8A77990_CLK_S3D2),
 	DEF_MOD("csi40",		 716,	R8A77990_CLK_CSI0),
 	DEF_MOD("du1",			 723,	R8A77990_CLK_S1D1),
 	DEF_MOD("du0",			 724,	R8A77990_CLK_S1D1),

From 3c772f71a552d343a96868ed9a809f9047be94f5 Mon Sep 17 00:00:00 2001
From: Takeshi Kihara <takeshi.kihara.df@renesas.com>
Date: Fri, 28 Sep 2018 16:18:00 +0900
Subject: [PATCH 13/17] clk: renesas: rcar-gen3: Correct parent clock of
 SYS-DMAC

The clock sources of the AXI BUS clock (266.66 MHz) used for SYS-DMAC
DMA transfers are:

    Channel      R-Car H3    R-Car M3-W    R-Car M3-N
    -------------------------------------------------
    SYS-DMAC0    S0D3        S0D3          S0D3
    SYS-DMAC1    S3D1        S3D1          S3D1
    SYS-DMAC2    S3D1        S3D1          S3D1

As a result, change the parent clocks of the SYS-DMAC{1,2} module clocks
on R-Car H3, R-Car M3-W, and R-Car M3-N to S3D1.

NOTE: This information will be reflected in a future revision of the
      R-Car Gen3 Hardware Manual.

Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
[geert: Update RZ/G2M]
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
---
 drivers/clk/renesas/r8a774a1-cpg-mssr.c | 4 ++--
 drivers/clk/renesas/r8a7795-cpg-mssr.c  | 4 ++--
 drivers/clk/renesas/r8a7796-cpg-mssr.c  | 4 ++--
 drivers/clk/renesas/r8a77965-cpg-mssr.c | 4 ++--
 4 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/clk/renesas/r8a774a1-cpg-mssr.c b/drivers/clk/renesas/r8a774a1-cpg-mssr.c
index 676e6a1120900..13bf7260204f5 100644
--- a/drivers/clk/renesas/r8a774a1-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a774a1-cpg-mssr.c
@@ -123,8 +123,8 @@ static const struct mssr_mod_clk r8a774a1_mod_clks[] __initconst = {
 	DEF_MOD("msiof2",		 209,	R8A774A1_CLK_MSO),
 	DEF_MOD("msiof1",		 210,	R8A774A1_CLK_MSO),
 	DEF_MOD("msiof0",		 211,	R8A774A1_CLK_MSO),
-	DEF_MOD("sys-dmac2",		 217,	R8A774A1_CLK_S0D3),
-	DEF_MOD("sys-dmac1",		 218,	R8A774A1_CLK_S0D3),
+	DEF_MOD("sys-dmac2",		 217,	R8A774A1_CLK_S3D1),
+	DEF_MOD("sys-dmac1",		 218,	R8A774A1_CLK_S3D1),
 	DEF_MOD("sys-dmac0",		 219,	R8A774A1_CLK_S0D3),
 	DEF_MOD("cmt3",			 300,	R8A774A1_CLK_R),
 	DEF_MOD("cmt2",			 301,	R8A774A1_CLK_R),
diff --git a/drivers/clk/renesas/r8a7795-cpg-mssr.c b/drivers/clk/renesas/r8a7795-cpg-mssr.c
index 5b658b0861180..a576a42f10444 100644
--- a/drivers/clk/renesas/r8a7795-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a7795-cpg-mssr.c
@@ -130,8 +130,8 @@ static struct mssr_mod_clk r8a7795_mod_clks[] __initdata = {
 	DEF_MOD("msiof2",		 209,	R8A7795_CLK_MSO),
 	DEF_MOD("msiof1",		 210,	R8A7795_CLK_MSO),
 	DEF_MOD("msiof0",		 211,	R8A7795_CLK_MSO),
-	DEF_MOD("sys-dmac2",		 217,	R8A7795_CLK_S0D3),
-	DEF_MOD("sys-dmac1",		 218,	R8A7795_CLK_S0D3),
+	DEF_MOD("sys-dmac2",		 217,	R8A7795_CLK_S3D1),
+	DEF_MOD("sys-dmac1",		 218,	R8A7795_CLK_S3D1),
 	DEF_MOD("sys-dmac0",		 219,	R8A7795_CLK_S0D3),
 	DEF_MOD("sceg-pub",		 229,	R8A7795_CLK_CR),
 	DEF_MOD("cmt3",			 300,	R8A7795_CLK_R),
diff --git a/drivers/clk/renesas/r8a7796-cpg-mssr.c b/drivers/clk/renesas/r8a7796-cpg-mssr.c
index fa1c1ac14d5ca..369092e8d8932 100644
--- a/drivers/clk/renesas/r8a7796-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a7796-cpg-mssr.c
@@ -127,8 +127,8 @@ static const struct mssr_mod_clk r8a7796_mod_clks[] __initconst = {
 	DEF_MOD("msiof2",		 209,	R8A7796_CLK_MSO),
 	DEF_MOD("msiof1",		 210,	R8A7796_CLK_MSO),
 	DEF_MOD("msiof0",		 211,	R8A7796_CLK_MSO),
-	DEF_MOD("sys-dmac2",		 217,	R8A7796_CLK_S0D3),
-	DEF_MOD("sys-dmac1",		 218,	R8A7796_CLK_S0D3),
+	DEF_MOD("sys-dmac2",		 217,	R8A7796_CLK_S3D1),
+	DEF_MOD("sys-dmac1",		 218,	R8A7796_CLK_S3D1),
 	DEF_MOD("sys-dmac0",		 219,	R8A7796_CLK_S0D3),
 	DEF_MOD("cmt3",			 300,	R8A7796_CLK_R),
 	DEF_MOD("cmt2",			 301,	R8A7796_CLK_R),
diff --git a/drivers/clk/renesas/r8a77965-cpg-mssr.c b/drivers/clk/renesas/r8a77965-cpg-mssr.c
index 48a9add7d4db8..623bbda2d24ec 100644
--- a/drivers/clk/renesas/r8a77965-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a77965-cpg-mssr.c
@@ -123,8 +123,8 @@ static const struct mssr_mod_clk r8a77965_mod_clks[] __initconst = {
 	DEF_MOD("msiof2",		209,	R8A77965_CLK_MSO),
 	DEF_MOD("msiof1",		210,	R8A77965_CLK_MSO),
 	DEF_MOD("msiof0",		211,	R8A77965_CLK_MSO),
-	DEF_MOD("sys-dmac2",		217,	R8A77965_CLK_S0D3),
-	DEF_MOD("sys-dmac1",		218,	R8A77965_CLK_S0D3),
+	DEF_MOD("sys-dmac2",		217,	R8A77965_CLK_S3D1),
+	DEF_MOD("sys-dmac1",		218,	R8A77965_CLK_S3D1),
 	DEF_MOD("sys-dmac0",		219,	R8A77965_CLK_S0D3),
 
 	DEF_MOD("cmt3",			300,	R8A77965_CLK_R),

From b9df2ea2b8d09ad850afe4d4a0403cb23d9e0c02 Mon Sep 17 00:00:00 2001
From: Takeshi Kihara <takeshi.kihara.df@renesas.com>
Date: Fri, 28 Sep 2018 16:33:06 +0900
Subject: [PATCH 14/17] clk: renesas: rcar-gen3: Correct parent clock of
 Audio-DMAC

The clock sources of the AXI-bus clock (266.66 MHz) used for Audio-DMAC
DMA transfers are:

    Channel        R-Car H3    R-Car M3-W    R-Car M3-N    R-Car E3
    ---------------------------------------------------------------
    Audio-DMAC0    S1D2        S1D2          S1D2          S1D2
    Audio-DMAC1    S1D2        S1D2          S1D2          -

As a result, change the parent clocks of the Audio-DMAC{0,1} module
clocks on R-Car H3, R-Car M3-W, and R-Car M3-N to S1D2, and change the
parent clock of the Audio-DMAC0 module on R-Car E3 to S1D2.

NOTE: This information will be reflected in a future revision of the
      R-Car Gen3 Hardware Manual.

Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
[geert: Update R-Car D3, RZ/G2M, and RZ/G2E]
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
---
 drivers/clk/renesas/r8a774a1-cpg-mssr.c | 4 ++--
 drivers/clk/renesas/r8a774c0-cpg-mssr.c | 2 +-
 drivers/clk/renesas/r8a7795-cpg-mssr.c  | 4 ++--
 drivers/clk/renesas/r8a7796-cpg-mssr.c  | 4 ++--
 drivers/clk/renesas/r8a77965-cpg-mssr.c | 4 ++--
 drivers/clk/renesas/r8a77990-cpg-mssr.c | 2 +-
 drivers/clk/renesas/r8a77995-cpg-mssr.c | 2 +-
 7 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/drivers/clk/renesas/r8a774a1-cpg-mssr.c b/drivers/clk/renesas/r8a774a1-cpg-mssr.c
index 13bf7260204f5..76ed7d1bae368 100644
--- a/drivers/clk/renesas/r8a774a1-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a774a1-cpg-mssr.c
@@ -143,8 +143,8 @@ static const struct mssr_mod_clk r8a774a1_mod_clks[] __initconst = {
 	DEF_MOD("rwdt",			 402,	R8A774A1_CLK_R),
 	DEF_MOD("intc-ex",		 407,	R8A774A1_CLK_CP),
 	DEF_MOD("intc-ap",		 408,	R8A774A1_CLK_S0D3),
-	DEF_MOD("audmac1",		 501,	R8A774A1_CLK_S0D3),
-	DEF_MOD("audmac0",		 502,	R8A774A1_CLK_S0D3),
+	DEF_MOD("audmac1",		 501,	R8A774A1_CLK_S1D2),
+	DEF_MOD("audmac0",		 502,	R8A774A1_CLK_S1D2),
 	DEF_MOD("hscif4",		 516,	R8A774A1_CLK_S3D1),
 	DEF_MOD("hscif3",		 517,	R8A774A1_CLK_S3D1),
 	DEF_MOD("hscif2",		 518,	R8A774A1_CLK_S3D1),
diff --git a/drivers/clk/renesas/r8a774c0-cpg-mssr.c b/drivers/clk/renesas/r8a774c0-cpg-mssr.c
index c33d3b0370812..f91e7a4847537 100644
--- a/drivers/clk/renesas/r8a774c0-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a774c0-cpg-mssr.c
@@ -158,7 +158,7 @@ static const struct mssr_mod_clk r8a774c0_mod_clks[] __initconst = {
 	DEF_MOD("intc-ex",		 407,	R8A774C0_CLK_CP),
 	DEF_MOD("intc-ap",		 408,	R8A774C0_CLK_S0D3),
 
-	DEF_MOD("audmac0",		 502,	R8A774C0_CLK_S3D4),
+	DEF_MOD("audmac0",		 502,	R8A774C0_CLK_S1D2),
 	DEF_MOD("hscif4",		 516,	R8A774C0_CLK_S3D1C),
 	DEF_MOD("hscif3",		 517,	R8A774C0_CLK_S3D1C),
 	DEF_MOD("hscif2",		 518,	R8A774C0_CLK_S3D1C),
diff --git a/drivers/clk/renesas/r8a7795-cpg-mssr.c b/drivers/clk/renesas/r8a7795-cpg-mssr.c
index a576a42f10444..e5fa9f6c1ec4b 100644
--- a/drivers/clk/renesas/r8a7795-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a7795-cpg-mssr.c
@@ -154,8 +154,8 @@ static struct mssr_mod_clk r8a7795_mod_clks[] __initdata = {
 	DEF_MOD("rwdt",			 402,	R8A7795_CLK_R),
 	DEF_MOD("intc-ex",		 407,	R8A7795_CLK_CP),
 	DEF_MOD("intc-ap",		 408,	R8A7795_CLK_S0D3),
-	DEF_MOD("audmac1",		 501,	R8A7795_CLK_S0D3),
-	DEF_MOD("audmac0",		 502,	R8A7795_CLK_S0D3),
+	DEF_MOD("audmac1",		 501,	R8A7795_CLK_S1D2),
+	DEF_MOD("audmac0",		 502,	R8A7795_CLK_S1D2),
 	DEF_MOD("drif7",		 508,	R8A7795_CLK_S3D2),
 	DEF_MOD("drif6",		 509,	R8A7795_CLK_S3D2),
 	DEF_MOD("drif5",		 510,	R8A7795_CLK_S3D2),
diff --git a/drivers/clk/renesas/r8a7796-cpg-mssr.c b/drivers/clk/renesas/r8a7796-cpg-mssr.c
index 369092e8d8932..73c69152c77b0 100644
--- a/drivers/clk/renesas/r8a7796-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a7796-cpg-mssr.c
@@ -147,8 +147,8 @@ static const struct mssr_mod_clk r8a7796_mod_clks[] __initconst = {
 	DEF_MOD("rwdt",			 402,	R8A7796_CLK_R),
 	DEF_MOD("intc-ex",		 407,	R8A7796_CLK_CP),
 	DEF_MOD("intc-ap",		 408,	R8A7796_CLK_S0D3),
-	DEF_MOD("audmac1",		 501,	R8A7796_CLK_S0D3),
-	DEF_MOD("audmac0",		 502,	R8A7796_CLK_S0D3),
+	DEF_MOD("audmac1",		 501,	R8A7796_CLK_S1D2),
+	DEF_MOD("audmac0",		 502,	R8A7796_CLK_S1D2),
 	DEF_MOD("drif7",		 508,	R8A7796_CLK_S3D2),
 	DEF_MOD("drif6",		 509,	R8A7796_CLK_S3D2),
 	DEF_MOD("drif5",		 510,	R8A7796_CLK_S3D2),
diff --git a/drivers/clk/renesas/r8a77965-cpg-mssr.c b/drivers/clk/renesas/r8a77965-cpg-mssr.c
index 623bbda2d24ec..a0ce2ecb656d3 100644
--- a/drivers/clk/renesas/r8a77965-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a77965-cpg-mssr.c
@@ -146,8 +146,8 @@ static const struct mssr_mod_clk r8a77965_mod_clks[] __initconst = {
 	DEF_MOD("intc-ex",		407,	R8A77965_CLK_CP),
 	DEF_MOD("intc-ap",		408,	R8A77965_CLK_S0D3),
 
-	DEF_MOD("audmac1",		501,	R8A77965_CLK_S0D3),
-	DEF_MOD("audmac0",		502,	R8A77965_CLK_S0D3),
+	DEF_MOD("audmac1",		501,	R8A77965_CLK_S1D2),
+	DEF_MOD("audmac0",		502,	R8A77965_CLK_S1D2),
 	DEF_MOD("drif7",		508,	R8A77965_CLK_S3D2),
 	DEF_MOD("drif6",		509,	R8A77965_CLK_S3D2),
 	DEF_MOD("drif5",		510,	R8A77965_CLK_S3D2),
diff --git a/drivers/clk/renesas/r8a77990-cpg-mssr.c b/drivers/clk/renesas/r8a77990-cpg-mssr.c
index 3a88d2247cf5c..53973201a9f57 100644
--- a/drivers/clk/renesas/r8a77990-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a77990-cpg-mssr.c
@@ -153,7 +153,7 @@ static const struct mssr_mod_clk r8a77990_mod_clks[] __initconst = {
 	DEF_MOD("intc-ex",		 407,	R8A77990_CLK_CP),
 	DEF_MOD("intc-ap",		 408,	R8A77990_CLK_S0D3),
 
-	DEF_MOD("audmac0",		 502,	R8A77990_CLK_S3D4),
+	DEF_MOD("audmac0",		 502,	R8A77990_CLK_S1D2),
 	DEF_MOD("drif7",		 508,	R8A77990_CLK_S3D2),
 	DEF_MOD("drif6",		 509,	R8A77990_CLK_S3D2),
 	DEF_MOD("drif5",		 510,	R8A77990_CLK_S3D2),
diff --git a/drivers/clk/renesas/r8a77995-cpg-mssr.c b/drivers/clk/renesas/r8a77995-cpg-mssr.c
index eee3874865a95..68707277b17b4 100644
--- a/drivers/clk/renesas/r8a77995-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a77995-cpg-mssr.c
@@ -133,7 +133,7 @@ static const struct mssr_mod_clk r8a77995_mod_clks[] __initconst = {
 	DEF_MOD("rwdt",			 402,	R8A77995_CLK_R),
 	DEF_MOD("intc-ex",		 407,	R8A77995_CLK_CP),
 	DEF_MOD("intc-ap",		 408,	R8A77995_CLK_S1D2),
-	DEF_MOD("audmac0",		 502,	R8A77995_CLK_S3D1),
+	DEF_MOD("audmac0",		 502,	R8A77995_CLK_S1D2),
 	DEF_MOD("hscif3",		 517,	R8A77995_CLK_S3D1C),
 	DEF_MOD("hscif0",		 520,	R8A77995_CLK_S3D1C),
 	DEF_MOD("thermal",		 522,	R8A77995_CLK_CP),

From 3c14505c68ca6b3b4d5258886e238f2a81729f06 Mon Sep 17 00:00:00 2001
From: Takeshi Kihara <takeshi.kihara.df@renesas.com>
Date: Fri, 8 Mar 2019 20:53:19 +0900
Subject: [PATCH 15/17] clk: renesas: rcar-gen3: Rename DRIF clocks

According to the R-Car Gen3 Hardware Manual Errata for Rev. 1.50 of Feb
12, 2019, the DRIF clocks have been renamed as follows:

    DRIF0 to DRIF00
    DRIF1 to DRIF01
    DRIF2 to DRIF10
    DRIF3 to DRIF11
    DRIF4 to DRIF20
    DRIF5 to DRIF21
    DRIF6 to DRIF30
    DRIF7 to DRIF31

Therefore, this patch renames the DRIF clocks from DRIFn to DRIFmm.

Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
---
 drivers/clk/renesas/r8a7795-cpg-mssr.c  | 18 +++++++++---------
 drivers/clk/renesas/r8a7796-cpg-mssr.c  | 16 ++++++++--------
 drivers/clk/renesas/r8a77965-cpg-mssr.c | 17 +++++++++--------
 drivers/clk/renesas/r8a77990-cpg-mssr.c | 18 +++++++++---------
 4 files changed, 35 insertions(+), 34 deletions(-)

diff --git a/drivers/clk/renesas/r8a7795-cpg-mssr.c b/drivers/clk/renesas/r8a7795-cpg-mssr.c
index e5fa9f6c1ec4b..9e9a6f2c31e80 100644
--- a/drivers/clk/renesas/r8a7795-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a7795-cpg-mssr.c
@@ -3,7 +3,7 @@
  * r8a7795 Clock Pulse Generator / Module Standby and Software Reset
  *
  * Copyright (C) 2015 Glider bvba
- * Copyright (C) 2018 Renesas Electronics Corp.
+ * Copyright (C) 2018-2019 Renesas Electronics Corp.
  *
  * Based on clk-rcar-gen3.c
  *
@@ -156,14 +156,14 @@ static struct mssr_mod_clk r8a7795_mod_clks[] __initdata = {
 	DEF_MOD("intc-ap",		 408,	R8A7795_CLK_S0D3),
 	DEF_MOD("audmac1",		 501,	R8A7795_CLK_S1D2),
 	DEF_MOD("audmac0",		 502,	R8A7795_CLK_S1D2),
-	DEF_MOD("drif7",		 508,	R8A7795_CLK_S3D2),
-	DEF_MOD("drif6",		 509,	R8A7795_CLK_S3D2),
-	DEF_MOD("drif5",		 510,	R8A7795_CLK_S3D2),
-	DEF_MOD("drif4",		 511,	R8A7795_CLK_S3D2),
-	DEF_MOD("drif3",		 512,	R8A7795_CLK_S3D2),
-	DEF_MOD("drif2",		 513,	R8A7795_CLK_S3D2),
-	DEF_MOD("drif1",		 514,	R8A7795_CLK_S3D2),
-	DEF_MOD("drif0",		 515,	R8A7795_CLK_S3D2),
+	DEF_MOD("drif31",		 508,	R8A7795_CLK_S3D2),
+	DEF_MOD("drif30",		 509,	R8A7795_CLK_S3D2),
+	DEF_MOD("drif21",		 510,	R8A7795_CLK_S3D2),
+	DEF_MOD("drif20",		 511,	R8A7795_CLK_S3D2),
+	DEF_MOD("drif11",		 512,	R8A7795_CLK_S3D2),
+	DEF_MOD("drif10",		 513,	R8A7795_CLK_S3D2),
+	DEF_MOD("drif01",		 514,	R8A7795_CLK_S3D2),
+	DEF_MOD("drif00",		 515,	R8A7795_CLK_S3D2),
 	DEF_MOD("hscif4",		 516,	R8A7795_CLK_S3D1),
 	DEF_MOD("hscif3",		 517,	R8A7795_CLK_S3D1),
 	DEF_MOD("hscif2",		 518,	R8A7795_CLK_S3D1),
diff --git a/drivers/clk/renesas/r8a7796-cpg-mssr.c b/drivers/clk/renesas/r8a7796-cpg-mssr.c
index 73c69152c77b0..d8e9af5d9ae9c 100644
--- a/drivers/clk/renesas/r8a7796-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a7796-cpg-mssr.c
@@ -149,14 +149,14 @@ static const struct mssr_mod_clk r8a7796_mod_clks[] __initconst = {
 	DEF_MOD("intc-ap",		 408,	R8A7796_CLK_S0D3),
 	DEF_MOD("audmac1",		 501,	R8A7796_CLK_S1D2),
 	DEF_MOD("audmac0",		 502,	R8A7796_CLK_S1D2),
-	DEF_MOD("drif7",		 508,	R8A7796_CLK_S3D2),
-	DEF_MOD("drif6",		 509,	R8A7796_CLK_S3D2),
-	DEF_MOD("drif5",		 510,	R8A7796_CLK_S3D2),
-	DEF_MOD("drif4",		 511,	R8A7796_CLK_S3D2),
-	DEF_MOD("drif3",		 512,	R8A7796_CLK_S3D2),
-	DEF_MOD("drif2",		 513,	R8A7796_CLK_S3D2),
-	DEF_MOD("drif1",		 514,	R8A7796_CLK_S3D2),
-	DEF_MOD("drif0",		 515,	R8A7796_CLK_S3D2),
+	DEF_MOD("drif31",		 508,	R8A7796_CLK_S3D2),
+	DEF_MOD("drif30",		 509,	R8A7796_CLK_S3D2),
+	DEF_MOD("drif21",		 510,	R8A7796_CLK_S3D2),
+	DEF_MOD("drif20",		 511,	R8A7796_CLK_S3D2),
+	DEF_MOD("drif11",		 512,	R8A7796_CLK_S3D2),
+	DEF_MOD("drif10",		 513,	R8A7796_CLK_S3D2),
+	DEF_MOD("drif01",		 514,	R8A7796_CLK_S3D2),
+	DEF_MOD("drif00",		 515,	R8A7796_CLK_S3D2),
 	DEF_MOD("hscif4",		 516,	R8A7796_CLK_S3D1),
 	DEF_MOD("hscif3",		 517,	R8A7796_CLK_S3D1),
 	DEF_MOD("hscif2",		 518,	R8A7796_CLK_S3D1),
diff --git a/drivers/clk/renesas/r8a77965-cpg-mssr.c b/drivers/clk/renesas/r8a77965-cpg-mssr.c
index a0ce2ecb656d3..8f87e314d9490 100644
--- a/drivers/clk/renesas/r8a77965-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a77965-cpg-mssr.c
@@ -3,6 +3,7 @@
  * r8a77965 Clock Pulse Generator / Module Standby and Software Reset
  *
  * Copyright (C) 2018 Jacopo Mondi <jacopo+renesas@jmondi.org>
+ * Copyright (C) 2019 Renesas Electronics Corp.
  *
  * Based on r8a7795-cpg-mssr.c
  *
@@ -148,14 +149,14 @@ static const struct mssr_mod_clk r8a77965_mod_clks[] __initconst = {
 
 	DEF_MOD("audmac1",		501,	R8A77965_CLK_S1D2),
 	DEF_MOD("audmac0",		502,	R8A77965_CLK_S1D2),
-	DEF_MOD("drif7",		508,	R8A77965_CLK_S3D2),
-	DEF_MOD("drif6",		509,	R8A77965_CLK_S3D2),
-	DEF_MOD("drif5",		510,	R8A77965_CLK_S3D2),
-	DEF_MOD("drif4",		511,	R8A77965_CLK_S3D2),
-	DEF_MOD("drif3",		512,	R8A77965_CLK_S3D2),
-	DEF_MOD("drif2",		513,	R8A77965_CLK_S3D2),
-	DEF_MOD("drif1",		514,	R8A77965_CLK_S3D2),
-	DEF_MOD("drif0",		515,	R8A77965_CLK_S3D2),
+	DEF_MOD("drif31",		508,	R8A77965_CLK_S3D2),
+	DEF_MOD("drif30",		509,	R8A77965_CLK_S3D2),
+	DEF_MOD("drif21",		510,	R8A77965_CLK_S3D2),
+	DEF_MOD("drif20",		511,	R8A77965_CLK_S3D2),
+	DEF_MOD("drif11",		512,	R8A77965_CLK_S3D2),
+	DEF_MOD("drif10",		513,	R8A77965_CLK_S3D2),
+	DEF_MOD("drif01",		514,	R8A77965_CLK_S3D2),
+	DEF_MOD("drif00",		515,	R8A77965_CLK_S3D2),
 	DEF_MOD("hscif4",		516,	R8A77965_CLK_S3D1),
 	DEF_MOD("hscif3",		517,	R8A77965_CLK_S3D1),
 	DEF_MOD("hscif2",		518,	R8A77965_CLK_S3D1),
diff --git a/drivers/clk/renesas/r8a77990-cpg-mssr.c b/drivers/clk/renesas/r8a77990-cpg-mssr.c
index 53973201a9f57..9570404baa583 100644
--- a/drivers/clk/renesas/r8a77990-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a77990-cpg-mssr.c
@@ -2,7 +2,7 @@
 /*
  * r8a77990 Clock Pulse Generator / Module Standby and Software Reset
  *
- * Copyright (C) 2018 Renesas Electronics Corp.
+ * Copyright (C) 2018-2019 Renesas Electronics Corp.
  *
  * Based on r8a7795-cpg-mssr.c
  *
@@ -154,14 +154,14 @@ static const struct mssr_mod_clk r8a77990_mod_clks[] __initconst = {
 	DEF_MOD("intc-ap",		 408,	R8A77990_CLK_S0D3),
 
 	DEF_MOD("audmac0",		 502,	R8A77990_CLK_S1D2),
-	DEF_MOD("drif7",		 508,	R8A77990_CLK_S3D2),
-	DEF_MOD("drif6",		 509,	R8A77990_CLK_S3D2),
-	DEF_MOD("drif5",		 510,	R8A77990_CLK_S3D2),
-	DEF_MOD("drif4",		 511,	R8A77990_CLK_S3D2),
-	DEF_MOD("drif3",		 512,	R8A77990_CLK_S3D2),
-	DEF_MOD("drif2",		 513,	R8A77990_CLK_S3D2),
-	DEF_MOD("drif1",		 514,	R8A77990_CLK_S3D2),
-	DEF_MOD("drif0",		 515,	R8A77990_CLK_S3D2),
+	DEF_MOD("drif31",		 508,	R8A77990_CLK_S3D2),
+	DEF_MOD("drif30",		 509,	R8A77990_CLK_S3D2),
+	DEF_MOD("drif21",		 510,	R8A77990_CLK_S3D2),
+	DEF_MOD("drif20",		 511,	R8A77990_CLK_S3D2),
+	DEF_MOD("drif11",		 512,	R8A77990_CLK_S3D2),
+	DEF_MOD("drif10",		 513,	R8A77990_CLK_S3D2),
+	DEF_MOD("drif01",		 514,	R8A77990_CLK_S3D2),
+	DEF_MOD("drif00",		 515,	R8A77990_CLK_S3D2),
 	DEF_MOD("hscif4",		 516,	R8A77990_CLK_S3D1C),
 	DEF_MOD("hscif3",		 517,	R8A77990_CLK_S3D1C),
 	DEF_MOD("hscif2",		 518,	R8A77990_CLK_S3D1C),

From 21ab095cbc069a351fa9cef919f2dafc43a8fde7 Mon Sep 17 00:00:00 2001
From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Date: Thu, 7 Mar 2019 22:53:19 +0300
Subject: [PATCH 16/17] clk: renesas: r8a77980: Fix RPC-IF module clock's
 parent

Testing has shown that the RPC-IF module clock's parent is the RPCD2
clock, not the RPC one -- the RPC-IF register reads stall otherwise...

Fixes: 94e3935b5756 ("clk: renesas: r8a77980: Add RPC clocks")
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 drivers/clk/renesas/r8a77980-cpg-mssr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clk/renesas/r8a77980-cpg-mssr.c b/drivers/clk/renesas/r8a77980-cpg-mssr.c
index f9e07fcc0d96f..7227f675e61ff 100644
--- a/drivers/clk/renesas/r8a77980-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a77980-cpg-mssr.c
@@ -171,7 +171,7 @@ static const struct mssr_mod_clk r8a77980_mod_clks[] __initconst = {
 	DEF_MOD("gpio1",		 911,	R8A77980_CLK_CP),
 	DEF_MOD("gpio0",		 912,	R8A77980_CLK_CP),
 	DEF_MOD("can-fd",		 914,	R8A77980_CLK_S3D2),
-	DEF_MOD("rpc-if",		 917,	R8A77980_CLK_RPC),
+	DEF_MOD("rpc-if",		 917,	R8A77980_CLK_RPCD2),
 	DEF_MOD("i2c4",			 927,	R8A77980_CLK_S0D6),
 	DEF_MOD("i2c3",			 928,	R8A77980_CLK_S0D6),
 	DEF_MOD("i2c2",			 929,	R8A77980_CLK_S3D2),

From b953eaaeb58efc944f51cffd3f6838657958f0f8 Mon Sep 17 00:00:00 2001
From: Takeshi Kihara <takeshi.kihara.df@renesas.com>
Date: Mon, 25 Feb 2019 11:48:38 +0900
Subject: [PATCH 17/17] clk: renesas: rcar-gen3: Fix cpg_sd_clock_round_rate()
 return value

cpg_sd_clock_round_rate() may return an unsupported clock rate for the
requested clock rate. Therefore, when cpg_sd_clock_set_rate() sets the
clock rate acquired by cpg_sd_clock_round_rate(), an error may occur.

This is not conform the clk API design.

This patch fixes that by making sure cpg_sd_clock_calc_div() considers
only the division values defined in cpg_sd_div_table[].
With this fix, the cpg_sd_clock_round_rate() always return a support
clock rate.

Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
Fixes: 90c073e53909da85 ("clk: shmobile: r8a7795: Add SD divider support")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
---
 drivers/clk/renesas/rcar-gen3-cpg.c | 30 ++++++++++++++---------------
 1 file changed, 14 insertions(+), 16 deletions(-)

diff --git a/drivers/clk/renesas/rcar-gen3-cpg.c b/drivers/clk/renesas/rcar-gen3-cpg.c
index d5fb768b089ff..dc62ed0dadc2b 100644
--- a/drivers/clk/renesas/rcar-gen3-cpg.c
+++ b/drivers/clk/renesas/rcar-gen3-cpg.c
@@ -3,6 +3,7 @@
  * R-Car Gen3 Clock Pulse Generator
  *
  * Copyright (C) 2015-2018 Glider bvba
+ * Copyright (C) 2019 Renesas Electronics Corp.
  *
  * Based on clk-rcar-gen3.c
  *
@@ -236,8 +237,6 @@ struct sd_clock {
 	const struct sd_div_table *div_table;
 	struct cpg_simple_notifier csn;
 	unsigned int div_num;
-	unsigned int div_min;
-	unsigned int div_max;
 	unsigned int cur_div_idx;
 };
 
@@ -314,14 +313,20 @@ static unsigned int cpg_sd_clock_calc_div(struct sd_clock *clock,
 					  unsigned long rate,
 					  unsigned long parent_rate)
 {
-	unsigned int div;
-
-	if (!rate)
-		rate = 1;
-
-	div = DIV_ROUND_CLOSEST(parent_rate, rate);
+	unsigned long calc_rate, diff, diff_min = ULONG_MAX;
+	unsigned int i, best_div = 0;
+
+	for (i = 0; i < clock->div_num; i++) {
+		calc_rate = DIV_ROUND_CLOSEST(parent_rate,
+					      clock->div_table[i].div);
+		diff = calc_rate > rate ? calc_rate - rate : rate - calc_rate;
+		if (diff < diff_min) {
+			best_div = clock->div_table[i].div;
+			diff_min = diff;
+		}
+	}
 
-	return clamp_t(unsigned int, div, clock->div_min, clock->div_max);
+	return best_div;
 }
 
 static long cpg_sd_clock_round_rate(struct clk_hw *hw, unsigned long rate,
@@ -405,13 +410,6 @@ static struct clk * __init cpg_sd_clk_register(const char *name,
 	val |= CPG_SD_STP_MASK | (clock->div_table[0].val & CPG_SD_FC_MASK);
 	writel(val, clock->csn.reg);
 
-	clock->div_max = clock->div_table[0].div;
-	clock->div_min = clock->div_max;
-	for (i = 1; i < clock->div_num; i++) {
-		clock->div_max = max(clock->div_max, clock->div_table[i].div);
-		clock->div_min = min(clock->div_min, clock->div_table[i].div);
-	}
-
 	clk = clk_register(NULL, &clock->hw);
 	if (IS_ERR(clk))
 		goto free_clock;