Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kern…

…el/git/soc/soc

Pull ARM SoC-related driver updates from Olof Johansson:
 "Various driver updates for platforms and a couple of the small driver
  subsystems we merge through our tree:

  Among the larger pieces:

   - Power management improvements for TI am335x and am437x (RTC
     suspend/wake)

   - Misc new additions for Amlogic (socinfo updates)

   - ZynqMP FPGA manager

   - Nvidia improvements for reset/powergate handling

   - PMIC wrapper for Mediatek MT8516

   - Misc fixes/improvements for ARM SCMI, TEE, NXP i.MX SCU drivers"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (57 commits)
  soc: aspeed: fix Kconfig
  soc: add aspeed folder and misc drivers
  spi: zynqmp: Fix build break
  soc: imx: Add generic i.MX8 SoC driver
  MAINTAINERS: Update email for Qualcomm SoC maintainer
  memory: tegra: Fix a typos for "fdcdwr2" mc client
  Revert "ARM: tegra: Restore memory arbitration on resume from LP1 on Tegra30+"
  memory: tegra: Replace readl-writel with mc_readl-mc_writel
  memory: tegra: Fix integer overflow on tick value calculation
  memory: tegra: Fix missed registers values latching
  ARM: tegra: cpuidle: Handle tick broadcasting within cpuidle core on Tegra20/30
  optee: allow to work without static shared memory
  soc/tegra: pmc: Move powergate initialisation to probe
  soc/tegra: pmc: Remove reset sysfs entries on error
  soc/tegra: pmc: Fix reset sources and levels
  soc: amlogic: meson-gx-pwrc-vpu: Add support for G12A
  soc: amlogic: meson-gx-pwrc-vpu: Fix power on/off register bitmask
  fpga manager: Adding FPGA Manager support for Xilinx zynqmp
  dt-bindings: fpga: Add bindings for ZynqMP fpga driver
  firmware: xilinx: Add fpga API's
  ...

Documentation/devicetree/bindings/fpga/xlnx,zynqmp-pcap-fpga.txt

@@ -0,0 +1,25 @@
+Devicetree bindings for Zynq Ultrascale MPSoC FPGA Manager.
+The ZynqMP SoC uses the PCAP (Processor configuration Port) to configure the
+Programmable Logic (PL). The configuration uses  the firmware interface.
+
+Required properties:
+- compatible: should contain "xlnx,zynqmp-pcap-fpga"
+
+Example for full FPGA configuration:
+
+	fpga-region0 {
+		compatible = "fpga-region";
+		fpga-mgr = <&zynqmp_pcap>;
+		#address-cells = <0x1>;
+		#size-cells = <0x1>;
+	};
+
+	firmware {
+		zynqmp_firmware: zynqmp-firmware {
+			compatible = "xlnx,zynqmp-firmware";
+			method = "smc";
+			zynqmp_pcap: pcap {
+				compatible = "xlnx,zynqmp-pcap-fpga";
+			};
+		};
+	};

Documentation/devicetree/bindings/soc/mediatek/pwrap.txt

@@ -25,6 +25,7 @@ Required properties in pwrap device node.
 	"mediatek,mt8135-pwrap" for MT8135 SoCs
 	"mediatek,mt8173-pwrap" for MT8173 SoCs
 	"mediatek,mt8183-pwrap" for MT8183 SoCs
+	"mediatek,mt8516-pwrap" for MT8516 SoCs
 - interrupts: IRQ for pwrap in SOC
 - reg-names: Must include the following entries:
   "pwrap": Main registers base

Documentation/xilinx/eemi.txt

@@ -41,8 +41,8 @@ Example of EEMI ops usage:
 	int ret;
 
 	eemi_ops = zynqmp_pm_get_eemi_ops();
-	if (!eemi_ops)
-		return -ENXIO;
+	if (IS_ERR(eemi_ops))
+		return PTR_ERR(eemi_ops);
 
 	ret = eemi_ops->query_data(qdata, ret_payload);
 

MAINTAINERS

@@ -2043,7 +2043,7 @@ W:	http://www.armlinux.org.uk/
 S:	Maintained
 
 ARM/QUALCOMM SUPPORT
-M:	Andy Gross <andy.gross@linaro.org>
+M:	Andy Gross <agross@kernel.org>
 M:	David Brown <david.brown@linaro.org>
 L:	linux-arm-msm@vger.kernel.org
 S:	Maintained

arch/arm/mach-omap2/pm33xx-core.c

@@ -10,6 +10,12 @@
 #include <asm/suspend.h>
 #include <linux/errno.h>
 #include <linux/platform_data/pm33xx.h>
+#include <linux/clk.h>
+#include <linux/platform_data/gpio-omap.h>
+#include <linux/pinctrl/pinmux.h>
+#include <linux/wkup_m3_ipc.h>
+#include <linux/of.h>
+#include <linux/rtc.h>
 
 #include "cm33xx.h"
 #include "common.h"
@@ -38,6 +44,29 @@ static int am43xx_map_scu(void)
 	return 0;
 }
 
+static int am33xx_check_off_mode_enable(void)
+{
+	if (enable_off_mode)
+		pr_warn("WARNING: This platform does not support off-mode, entering DeepSleep suspend.\n");
+
+	/* off mode not supported on am335x so return 0 always */
+	return 0;
+}
+
+static int am43xx_check_off_mode_enable(void)
+{
+	/*
+	 * Check for am437x-gp-evm which has the right Hardware design to
+	 * support this mode reliably.
+	 */
+	if (of_machine_is_compatible("ti,am437x-gp-evm") && enable_off_mode)
+		return enable_off_mode;
+	else if (enable_off_mode)
+		pr_warn("WARNING: This platform does not support off-mode, entering DeepSleep suspend.\n");
+
+	return 0;
+}
+
 static int amx3_common_init(void)
 {
 	gfx_pwrdm = pwrdm_lookup("gfx_pwrdm");
@@ -141,7 +170,9 @@ static int am43xx_suspend(unsigned int state, int (*fn)(unsigned long),
 	scu_power_mode(scu_base, SCU_PM_POWEROFF);
 	ret = cpu_suspend(args, fn);
 	scu_power_mode(scu_base, SCU_PM_NORMAL);
-	amx3_post_suspend_common();
+
+	if (!am43xx_check_off_mode_enable())
+		amx3_post_suspend_common();
 
 	return ret;
 }
@@ -163,17 +194,60 @@ void __iomem *am43xx_get_rtc_base_addr(void)
 	return omap_hwmod_get_mpu_rt_va(rtc_oh);
 }
 
+static void am43xx_save_context(void)
+{
+}
+
+static void am33xx_save_context(void)
+{
+	omap_intc_save_context();
+}
+
+static void am33xx_restore_context(void)
+{
+	omap_intc_restore_context();
+}
+
+static void am43xx_restore_context(void)
+{
+	/*
+	 * HACK: restore dpll_per_clkdcoldo register contents, to avoid
+	 * breaking suspend-resume
+	 */
+	writel_relaxed(0x0, AM33XX_L4_WK_IO_ADDRESS(0x44df2e14));
+}
+
+static void am43xx_prepare_rtc_suspend(void)
+{
+	omap_hwmod_enable(rtc_oh);
+}
+
+static void am43xx_prepare_rtc_resume(void)
+{
+	omap_hwmod_idle(rtc_oh);
+}
+
 static struct am33xx_pm_platform_data am33xx_ops = {
 	.init = am33xx_suspend_init,
 	.soc_suspend = am33xx_suspend,
 	.get_sram_addrs = amx3_get_sram_addrs,
+	.save_context = am33xx_save_context,
+	.restore_context = am33xx_restore_context,
+	.prepare_rtc_suspend = am43xx_prepare_rtc_suspend,
+	.prepare_rtc_resume = am43xx_prepare_rtc_resume,
+	.check_off_mode_enable = am33xx_check_off_mode_enable,
 	.get_rtc_base_addr = am43xx_get_rtc_base_addr,
 };
 
 static struct am33xx_pm_platform_data am43xx_ops = {
 	.init = am43xx_suspend_init,
 	.soc_suspend = am43xx_suspend,
 	.get_sram_addrs = amx3_get_sram_addrs,
+	.save_context = am43xx_save_context,
+	.restore_context = am43xx_restore_context,
+	.prepare_rtc_suspend = am43xx_prepare_rtc_suspend,
+	.prepare_rtc_resume = am43xx_prepare_rtc_resume,
+	.check_off_mode_enable = am43xx_check_off_mode_enable,
 	.get_rtc_base_addr = am43xx_get_rtc_base_addr,
 };
 

arch/arm/mach-omap2/sleep43xx.S

@@ -368,6 +368,9 @@ wait_emif_enable1:
 	mov     r1, #AM43XX_EMIF_POWEROFF_DISABLE
 	str     r1, [r2, #0x0]
 
+	ldr     r1, [r9, #EMIF_PM_RUN_HW_LEVELING]
+	blx     r1
+
 #ifdef CONFIG_CACHE_L2X0
 	ldr	r2, l2_cache_base
 	ldr	r0, [r2, #L2X0_CTRL]

arch/arm/mach-tegra/Kconfig

@@ -10,6 +10,7 @@ menuconfig ARCH_TEGRA
 	select HAVE_ARM_SCU if SMP
 	select HAVE_ARM_TWD if SMP
 	select PINCTRL
+	select PM
 	select PM_OPP
 	select RESET_CONTROLLER
 	select SOC_BUS

arch/arm/mach-tegra/cpuidle-tegra20.c

@@ -61,7 +61,8 @@ static struct cpuidle_driver tegra_idle_driver = {
 			.exit_latency     = 5000,
 			.target_residency = 10000,
 			.power_usage      = 0,
-			.flags            = CPUIDLE_FLAG_COUPLED,
+			.flags            = CPUIDLE_FLAG_COUPLED |
+			                    CPUIDLE_FLAG_TIMER_STOP,
 			.name             = "powered-down",
 			.desc             = "CPU power gated",
 		},
@@ -136,12 +137,8 @@ static bool tegra20_cpu_cluster_power_down(struct cpuidle_device *dev,
 	if (tegra20_reset_cpu_1() || !tegra_cpu_rail_off_ready())
 		return false;
 
-	tick_broadcast_enter();
-
 	tegra_idle_lp2_last();
 
-	tick_broadcast_exit();
-
 	if (cpu_online(1))
 		tegra20_wake_cpu1_from_reset();
 
@@ -153,14 +150,10 @@ static bool tegra20_idle_enter_lp2_cpu_1(struct cpuidle_device *dev,
 					 struct cpuidle_driver *drv,
 					 int index)
 {
-	tick_broadcast_enter();
-
 	cpu_suspend(0, tegra20_sleep_cpu_secondary_finish);
 
 	tegra20_cpu_clear_resettable();
 
-	tick_broadcast_exit();
-
 	return true;
 }
 #else

arch/arm/mach-tegra/cpuidle-tegra30.c

@@ -56,6 +56,7 @@ static struct cpuidle_driver tegra_idle_driver = {
 			.exit_latency		= 2000,
 			.target_residency	= 2200,
 			.power_usage		= 0,
+			.flags			= CPUIDLE_FLAG_TIMER_STOP,
 			.name			= "powered-down",
 			.desc			= "CPU power gated",
 		},
@@ -76,12 +77,8 @@ static bool tegra30_cpu_cluster_power_down(struct cpuidle_device *dev,
 		return false;
 	}
 
-	tick_broadcast_enter();
-
 	tegra_idle_lp2_last();
 
-	tick_broadcast_exit();
-
 	return true;
 }
 
@@ -90,14 +87,10 @@ static bool tegra30_cpu_core_power_down(struct cpuidle_device *dev,
 					struct cpuidle_driver *drv,
 					int index)
 {
-	tick_broadcast_enter();
-
 	smp_wmb();
 
 	cpu_suspend(0, tegra30_sleep_cpu_secondary_finish);
 
-	tick_broadcast_exit();
-
 	return true;
 }
 #else

arch/arm/mach-tegra/iomap.h

@@ -79,24 +79,15 @@
 #define TEGRA_PMC_BASE			0x7000E400
 #define TEGRA_PMC_SIZE			SZ_256
 
-#define TEGRA_MC_BASE			0x7000F000
-#define TEGRA_MC_SIZE			SZ_1K
-
 #define TEGRA_EMC_BASE			0x7000F400
 #define TEGRA_EMC_SIZE			SZ_1K
 
-#define TEGRA114_MC_BASE		0x70019000
-#define TEGRA114_MC_SIZE		SZ_4K
-
 #define TEGRA_EMC0_BASE			0x7001A000
 #define TEGRA_EMC0_SIZE			SZ_2K
 
 #define TEGRA_EMC1_BASE			0x7001A800
 #define TEGRA_EMC1_SIZE			SZ_2K
 
-#define TEGRA124_MC_BASE		0x70019000
-#define TEGRA124_MC_SIZE		SZ_4K
-
 #define TEGRA124_EMC_BASE		0x7001B000
 #define TEGRA124_EMC_SIZE		SZ_2K
 

arch/arm/mach-tegra/sleep-tegra30.S

@@ -44,8 +44,6 @@
 #define EMC_XM2VTTGENPADCTRL		0x310
 #define EMC_XM2VTTGENPADCTRL2		0x314
 
-#define MC_EMEM_ARB_CFG			0x90
-
 #define PMC_CTRL			0x0
 #define PMC_CTRL_SIDE_EFFECT_LP0 (1 << 14) /* enter LP0 when CPU pwr gated */
 
@@ -420,22 +418,6 @@ _pll_m_c_x_done:
 	movweq	r0, #:lower16:TEGRA124_EMC_BASE
 	movteq	r0, #:upper16:TEGRA124_EMC_BASE
 
-	cmp	r10, #TEGRA30
-	moveq	r2, #0x20
-	movweq	r4, #:lower16:TEGRA_MC_BASE
-	movteq	r4, #:upper16:TEGRA_MC_BASE
-	cmp	r10, #TEGRA114
-	moveq	r2, #0x34
-	movweq	r4, #:lower16:TEGRA114_MC_BASE
-	movteq	r4, #:upper16:TEGRA114_MC_BASE
-	cmp	r10, #TEGRA124
-	moveq	r2, #0x20
-	movweq	r4, #:lower16:TEGRA124_MC_BASE
-	movteq	r4, #:upper16:TEGRA124_MC_BASE
-
-	ldr	r1, [r5, r2]		@ restore MC_EMEM_ARB_CFG
-	str	r1, [r4, #MC_EMEM_ARB_CFG]
-
 exit_self_refresh:
 	ldr	r1, [r5, #0xC]		@ restore EMC_XM2VTTGENPADCTRL
 	str	r1, [r0, #EMC_XM2VTTGENPADCTRL]
@@ -564,7 +546,6 @@ tegra30_sdram_pad_address:
 	.word	TEGRA_PMC_BASE + PMC_IO_DPD_STATUS			@0x14
 	.word	TEGRA_CLK_RESET_BASE + CLK_RESET_CLK_SOURCE_MSELECT	@0x18
 	.word	TEGRA_CLK_RESET_BASE + CLK_RESET_SCLK_BURST		@0x1c
-	.word	TEGRA_MC_BASE + MC_EMEM_ARB_CFG				@0x20
 tegra30_sdram_pad_address_end:
 
 tegra114_sdram_pad_address:
@@ -581,7 +562,6 @@ tegra114_sdram_pad_address:
 	.word	TEGRA_EMC1_BASE + EMC_AUTO_CAL_INTERVAL			@0x28
 	.word	TEGRA_EMC1_BASE + EMC_XM2VTTGENPADCTRL			@0x2c
 	.word	TEGRA_EMC1_BASE + EMC_XM2VTTGENPADCTRL2			@0x30
-	.word	TEGRA114_MC_BASE + MC_EMEM_ARB_CFG			@0x34
 tegra114_sdram_pad_adress_end:
 
 tegra124_sdram_pad_address:
@@ -593,7 +573,6 @@ tegra124_sdram_pad_address:
 	.word	TEGRA_PMC_BASE + PMC_IO_DPD_STATUS			@0x14
 	.word	TEGRA_CLK_RESET_BASE + CLK_RESET_CLK_SOURCE_MSELECT	@0x18
 	.word	TEGRA_CLK_RESET_BASE + CLK_RESET_SCLK_BURST		@0x1c
-	.word	TEGRA124_MC_BASE + MC_EMEM_ARB_CFG			@0x20
 tegra124_sdram_pad_address_end:
 
 tegra30_sdram_pad_size: