From ae6672cb47c8a7652e9aff182eb85a15994c9487 Mon Sep 17 00:00:00 2001 From: Jon Hunter Date: Wed, 11 Jul 2012 13:47:38 -0500 Subject: [PATCH 1/8] ARM: OMAP: Clean-up dmtimer reset code Only OMAP1 devices use the omap_dm_timer_reset() and so require the omap_dm_timer_wait_for_reset() and __omap_dm_timer_reset() functions. Therefore combine these into a single function called omap_dm_timer_reset() and simplify the code. The omap_dm_timer_reset() function is now the only place that is using the omap_dm_timer structure member "sys_stat". Therefore, remove this member and just use the register offset definition to simplify and clean-up the code. The TISTAT register is only present on revision 1 timers and so check for this in the omap_dm_timer_reset() function. Please note that for OMAP1 devices, the TIOCP_CFG register does not have the clock-activity field and so when we reset the timer for an OMAP1 device we only need to configure the idle-mode field in the TIOCP_CFG register. Signed-off-by: Jon Hunter --- arch/arm/plat-omap/dmtimer.c | 50 ++++++++++++++--------- arch/arm/plat-omap/include/plat/dmtimer.h | 23 ----------- 2 files changed, 31 insertions(+), 42 deletions(-) diff --git a/arch/arm/plat-omap/dmtimer.c b/arch/arm/plat-omap/dmtimer.c index 9deeb3064d33..4c28452ba078 100644 --- a/arch/arm/plat-omap/dmtimer.c +++ b/arch/arm/plat-omap/dmtimer.c @@ -99,32 +99,39 @@ static void omap_timer_restore_context(struct omap_dm_timer *timer) timer->context.tclr); } -static void omap_dm_timer_wait_for_reset(struct omap_dm_timer *timer) +static int omap_dm_timer_reset(struct omap_dm_timer *timer) { - int c; + u32 l, timeout = 100000; - if (!timer->sys_stat) - return; + if (timer->revision != 1) + return -EINVAL; - c = 0; - while (!(__raw_readl(timer->sys_stat) & 1)) { - c++; - if (c > 100000) { - printk(KERN_ERR "Timer failed to reset\n"); - return; - } + omap_dm_timer_write_reg(timer, OMAP_TIMER_IF_CTRL_REG, 0x06); + + do { + l = __omap_dm_timer_read(timer, + OMAP_TIMER_V1_SYS_STAT_OFFSET, 0); + } while (!l && timeout--); + + if (!timeout) { + dev_err(&timer->pdev->dev, "Timer failed to reset\n"); + return -ETIMEDOUT; } -} -static void omap_dm_timer_reset(struct omap_dm_timer *timer) -{ - omap_dm_timer_write_reg(timer, OMAP_TIMER_IF_CTRL_REG, 0x06); - omap_dm_timer_wait_for_reset(timer); - __omap_dm_timer_reset(timer, 0, 0); + /* Configure timer for smart-idle mode */ + l = __omap_dm_timer_read(timer, OMAP_TIMER_OCP_CFG_OFFSET, 0); + l |= 0x2 << 0x3; + __omap_dm_timer_write(timer, OMAP_TIMER_OCP_CFG_OFFSET, l, 0); + + timer->posted = 0; + + return 0; } int omap_dm_timer_prepare(struct omap_dm_timer *timer) { + int rc; + /* * FIXME: OMAP1 devices do not use the clock framework for dmtimers so * do not call clk_get() for these devices. @@ -140,8 +147,13 @@ int omap_dm_timer_prepare(struct omap_dm_timer *timer) omap_dm_timer_enable(timer); - if (timer->capability & OMAP_TIMER_NEEDS_RESET) - omap_dm_timer_reset(timer); + if (timer->capability & OMAP_TIMER_NEEDS_RESET) { + rc = omap_dm_timer_reset(timer); + if (rc) { + omap_dm_timer_disable(timer); + return rc; + } + } __omap_dm_timer_enable_posted(timer); omap_dm_timer_disable(timer); diff --git a/arch/arm/plat-omap/include/plat/dmtimer.h b/arch/arm/plat-omap/include/plat/dmtimer.h index 05a36e16f3f4..c5c890dabca4 100644 --- a/arch/arm/plat-omap/include/plat/dmtimer.h +++ b/arch/arm/plat-omap/include/plat/dmtimer.h @@ -267,7 +267,6 @@ struct omap_dm_timer { struct clk *fclk; void __iomem *io_base; - void __iomem *sys_stat; /* TISTAT timer status */ void __iomem *irq_stat; /* TISR/IRQSTATUS interrupt status */ void __iomem *irq_ena; /* irq enable */ void __iomem *irq_dis; /* irq disable, only on v2 ip */ @@ -317,8 +316,6 @@ static inline void __omap_dm_timer_init_regs(struct omap_dm_timer *timer) tidr = __raw_readl(timer->io_base); if (!(tidr >> 16)) { timer->revision = 1; - timer->sys_stat = timer->io_base + - OMAP_TIMER_V1_SYS_STAT_OFFSET; timer->irq_stat = timer->io_base + OMAP_TIMER_V1_STAT_OFFSET; timer->irq_ena = timer->io_base + OMAP_TIMER_V1_INT_EN_OFFSET; timer->irq_dis = timer->io_base + OMAP_TIMER_V1_INT_EN_OFFSET; @@ -326,7 +323,6 @@ static inline void __omap_dm_timer_init_regs(struct omap_dm_timer *timer) timer->func_base = timer->io_base; } else { timer->revision = 2; - timer->sys_stat = NULL; timer->irq_stat = timer->io_base + OMAP_TIMER_V2_IRQSTATUS; timer->irq_ena = timer->io_base + OMAP_TIMER_V2_IRQENABLE_SET; timer->irq_dis = timer->io_base + OMAP_TIMER_V2_IRQENABLE_CLR; @@ -337,25 +333,6 @@ static inline void __omap_dm_timer_init_regs(struct omap_dm_timer *timer) } } -/* Assumes the source clock has been set by caller */ -static inline void __omap_dm_timer_reset(struct omap_dm_timer *timer, - int autoidle, int wakeup) -{ - u32 l; - - l = __raw_readl(timer->io_base + OMAP_TIMER_OCP_CFG_OFFSET); - l |= 0x02 << 3; /* Set to smart-idle mode */ - l |= 0x2 << 8; /* Set clock activity to perserve f-clock on idle */ - - if (autoidle) - l |= 0x1 << 0; - - if (wakeup) - l |= 1 << 2; - - __raw_writel(l, timer->io_base + OMAP_TIMER_OCP_CFG_OFFSET); -} - /* * __omap_dm_timer_enable_posted - enables write posted mode * @timer: pointer to timer instance handle From b0cadb3c86fc99553b1f5c38c7770be1ad52aa26 Mon Sep 17 00:00:00 2001 From: Jon Hunter Date: Fri, 28 Sep 2012 12:21:09 -0500 Subject: [PATCH 2/8] ARM: OMAP: Define omap_dm_timer_prepare function as static The omap_dm_timer_prepare function is a local function only used in the dmtimer.c file. Therefore, make this a static function and remove its declaration from the dmtimer.h file. Signed-off-by: Jon Hunter --- arch/arm/plat-omap/dmtimer.c | 2 +- arch/arm/plat-omap/include/plat/dmtimer.h | 2 -- 2 files changed, 1 insertion(+), 3 deletions(-) diff --git a/arch/arm/plat-omap/dmtimer.c b/arch/arm/plat-omap/dmtimer.c index 4c28452ba078..efe47744b491 100644 --- a/arch/arm/plat-omap/dmtimer.c +++ b/arch/arm/plat-omap/dmtimer.c @@ -128,7 +128,7 @@ static int omap_dm_timer_reset(struct omap_dm_timer *timer) return 0; } -int omap_dm_timer_prepare(struct omap_dm_timer *timer) +static int omap_dm_timer_prepare(struct omap_dm_timer *timer) { int rc; diff --git a/arch/arm/plat-omap/include/plat/dmtimer.h b/arch/arm/plat-omap/include/plat/dmtimer.h index c5c890dabca4..40383b68a099 100644 --- a/arch/arm/plat-omap/include/plat/dmtimer.h +++ b/arch/arm/plat-omap/include/plat/dmtimer.h @@ -286,8 +286,6 @@ struct omap_dm_timer { struct list_head node; }; -int omap_dm_timer_prepare(struct omap_dm_timer *timer); - static inline u32 __omap_dm_timer_read(struct omap_dm_timer *timer, u32 reg, int posted) { From 61b001c564b75bfb47bfb84b33008fc2a35c9a84 Mon Sep 17 00:00:00 2001 From: Jon Hunter Date: Fri, 28 Sep 2012 18:03:29 -0500 Subject: [PATCH 3/8] ARM: OMAP: Don't store timers physical address The OMAP2+ system timer code stores the physical address of the timer but never uses it. Remove this and clean-up the code by removing the local variable "size" and changing the names of the local variables mem_rsrc and irq_rsrc to mem and irq, respectively. Signed-off-by: Jon Hunter --- arch/arm/mach-omap2/timer.c | 13 +++++-------- arch/arm/plat-omap/include/plat/dmtimer.h | 1 - 2 files changed, 5 insertions(+), 9 deletions(-) diff --git a/arch/arm/mach-omap2/timer.c b/arch/arm/mach-omap2/timer.c index 099e4060afe9..e9fcc5faff5c 100644 --- a/arch/arm/mach-omap2/timer.c +++ b/arch/arm/mach-omap2/timer.c @@ -245,8 +245,7 @@ static int __init omap_dm_timer_init_one(struct omap_dm_timer *timer, const char *oh_name; struct device_node *np; struct omap_hwmod *oh; - struct resource irq_rsrc, mem_rsrc; - size_t size; + struct resource irq, mem; int res = 0; int r; @@ -280,20 +279,18 @@ static int __init omap_dm_timer_init_one(struct omap_dm_timer *timer, if (!of_have_populated_dt()) { r = omap_hwmod_get_resource_byname(oh, IORESOURCE_IRQ, NULL, - &irq_rsrc); + &irq); if (r) return -ENXIO; - timer->irq = irq_rsrc.start; + timer->irq = irq.start; r = omap_hwmod_get_resource_byname(oh, IORESOURCE_MEM, NULL, - &mem_rsrc); + &mem); if (r) return -ENXIO; - timer->phys_base = mem_rsrc.start; - size = mem_rsrc.end - mem_rsrc.start; /* Static mapping, never released */ - timer->io_base = ioremap(timer->phys_base, size); + timer->io_base = ioremap(mem.start, mem.end - mem.start); } if (!timer->io_base) diff --git a/arch/arm/plat-omap/include/plat/dmtimer.h b/arch/arm/plat-omap/include/plat/dmtimer.h index 40383b68a099..b60e2b66ad18 100644 --- a/arch/arm/plat-omap/include/plat/dmtimer.h +++ b/arch/arm/plat-omap/include/plat/dmtimer.h @@ -261,7 +261,6 @@ int omap_dm_timers_active(void); (_OMAP_TIMER_TICK_INT_MASK_COUNT_OFFSET | (WP_TOWR << WPSHIFT)) struct omap_dm_timer { - unsigned long phys_base; int id; int irq; struct clk *fclk; From f88095ba07c312fd4b309545553e1492cb227227 Mon Sep 17 00:00:00 2001 From: Jon Hunter Date: Fri, 9 Nov 2012 17:07:39 -0600 Subject: [PATCH 4/8] ARM: OMAP2+: Remove unnecessary local variable in timer code The function omap_dm_timer_init_one() declares two local variables of type int that are used to store the return value of functions called. One such local variable is sufficient and so remove one of these local variables. Signed-off-by: Jon Hunter --- arch/arm/mach-omap2/timer.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) diff --git a/arch/arm/mach-omap2/timer.c b/arch/arm/mach-omap2/timer.c index e9fcc5faff5c..1a662dfdda11 100644 --- a/arch/arm/mach-omap2/timer.c +++ b/arch/arm/mach-omap2/timer.c @@ -246,8 +246,7 @@ static int __init omap_dm_timer_init_one(struct omap_dm_timer *timer, struct device_node *np; struct omap_hwmod *oh; struct resource irq, mem; - int res = 0; - int r; + int r = 0; if (of_have_populated_dt()) { np = omap_get_timer_dt(omap_timer_match, NULL); @@ -307,10 +306,10 @@ static int __init omap_dm_timer_init_one(struct omap_dm_timer *timer, src = clk_get(NULL, fck_source); if (IS_ERR(src)) { - res = -EINVAL; + r = -EINVAL; } else { - res = clk_set_parent(timer->fclk, src); - if (IS_ERR_VALUE(res)) + r = clk_set_parent(timer->fclk, src); + if (IS_ERR_VALUE(r)) pr_warn("%s: %s cannot set source\n", __func__, oh->name); clk_put(src); @@ -331,7 +330,7 @@ static int __init omap_dm_timer_init_one(struct omap_dm_timer *timer, timer->rate = clk_get_rate(timer->fclk); timer->reserved = 1; - return res; + return r; } static void __init omap2_gp_clockevent_init(int gptimer_id, From 755ae860f71cb37fbd3cc8da007e0d8de33419f0 Mon Sep 17 00:00:00 2001 From: Jon Hunter Date: Fri, 28 Sep 2012 17:40:22 -0500 Subject: [PATCH 5/8] ARM: OMAP: Remove unnecessary omap_dm_timer structure declaration Remove unnecessary declaration of structure omap_dm_timer from dmtimer.h and move the actual declaration of structure omap_dm_timer towards top of dmtimer.h to avoid any compilation errors. Signed-off-by: Jon Hunter --- arch/arm/plat-omap/include/plat/dmtimer.h | 52 +++++++++++------------ 1 file changed, 25 insertions(+), 27 deletions(-) diff --git a/arch/arm/plat-omap/include/plat/dmtimer.h b/arch/arm/plat-omap/include/plat/dmtimer.h index b60e2b66ad18..b3cd91b60a2e 100644 --- a/arch/arm/plat-omap/include/plat/dmtimer.h +++ b/arch/arm/plat-omap/include/plat/dmtimer.h @@ -79,8 +79,6 @@ struct omap_timer_capability_dev_attr { u32 timer_capability; }; -struct omap_dm_timer; - struct timer_regs { u32 tidr; u32 tier; @@ -101,6 +99,31 @@ struct timer_regs { u32 towr; }; +struct omap_dm_timer { + int id; + int irq; + struct clk *fclk; + + void __iomem *io_base; + void __iomem *irq_stat; /* TISR/IRQSTATUS interrupt status */ + void __iomem *irq_ena; /* irq enable */ + void __iomem *irq_dis; /* irq disable, only on v2 ip */ + void __iomem *pend; /* write pending */ + void __iomem *func_base; /* function register base */ + + unsigned long rate; + unsigned reserved:1; + unsigned posted:1; + struct timer_regs context; + int (*get_context_loss_count)(struct device *); + int ctx_loss_count; + int revision; + u32 capability; + u32 errata; + struct platform_device *pdev; + struct list_head node; +}; + struct dmtimer_platform_data { /* set_timer_src - Only used for OMAP1 devices */ int (*set_timer_src)(struct platform_device *pdev, int source); @@ -260,31 +283,6 @@ int omap_dm_timers_active(void); #define OMAP_TIMER_TICK_INT_MASK_COUNT_REG \ (_OMAP_TIMER_TICK_INT_MASK_COUNT_OFFSET | (WP_TOWR << WPSHIFT)) -struct omap_dm_timer { - int id; - int irq; - struct clk *fclk; - - void __iomem *io_base; - void __iomem *irq_stat; /* TISR/IRQSTATUS interrupt status */ - void __iomem *irq_ena; /* irq enable */ - void __iomem *irq_dis; /* irq disable, only on v2 ip */ - void __iomem *pend; /* write pending */ - void __iomem *func_base; /* function register base */ - - unsigned long rate; - unsigned reserved:1; - unsigned posted:1; - struct timer_regs context; - int (*get_context_loss_count)(struct device *); - int ctx_loss_count; - int revision; - u32 capability; - u32 errata; - struct platform_device *pdev; - struct list_head node; -}; - static inline u32 __omap_dm_timer_read(struct omap_dm_timer *timer, u32 reg, int posted) { From 40fc3bb56ed125aa22c0a85c816ae0f923519146 Mon Sep 17 00:00:00 2001 From: Jon Hunter Date: Fri, 28 Sep 2012 11:34:49 -0500 Subject: [PATCH 6/8] ARM: OMAP: Add platform data header for DMTIMERs Move definition of dmtimer platform data structure in to its own header under . Signed-off-by: Jon Hunter --- arch/arm/mach-omap1/timer.c | 1 + arch/arm/mach-omap2/timer.c | 2 ++ arch/arm/plat-omap/dmtimer.c | 2 ++ arch/arm/plat-omap/include/plat/dmtimer.h | 8 ------ include/linux/platform_data/dmtimer-omap.h | 31 ++++++++++++++++++++++ 5 files changed, 36 insertions(+), 8 deletions(-) create mode 100644 include/linux/platform_data/dmtimer-omap.h diff --git a/arch/arm/mach-omap1/timer.c b/arch/arm/mach-omap1/timer.c index cdeb9d3ef640..bde7a35e5000 100644 --- a/arch/arm/mach-omap1/timer.c +++ b/arch/arm/mach-omap1/timer.c @@ -25,6 +25,7 @@ #include #include #include +#include #include diff --git a/arch/arm/mach-omap2/timer.c b/arch/arm/mach-omap2/timer.c index 1a662dfdda11..4daa8b41c522 100644 --- a/arch/arm/mach-omap2/timer.c +++ b/arch/arm/mach-omap2/timer.c @@ -39,6 +39,8 @@ #include #include #include +#include +#include #include #include diff --git a/arch/arm/plat-omap/dmtimer.c b/arch/arm/plat-omap/dmtimer.c index efe47744b491..89585c293554 100644 --- a/arch/arm/plat-omap/dmtimer.c +++ b/arch/arm/plat-omap/dmtimer.c @@ -43,6 +43,8 @@ #include #include #include +#include +#include #include diff --git a/arch/arm/plat-omap/include/plat/dmtimer.h b/arch/arm/plat-omap/include/plat/dmtimer.h index b3cd91b60a2e..a3fbc48c332e 100644 --- a/arch/arm/plat-omap/include/plat/dmtimer.h +++ b/arch/arm/plat-omap/include/plat/dmtimer.h @@ -124,14 +124,6 @@ struct omap_dm_timer { struct list_head node; }; -struct dmtimer_platform_data { - /* set_timer_src - Only used for OMAP1 devices */ - int (*set_timer_src)(struct platform_device *pdev, int source); - u32 timer_errata; - u32 timer_capability; - int (*get_context_loss_count)(struct device *); -}; - int omap_dm_timer_reserve_systimer(int id); struct omap_dm_timer *omap_dm_timer_request(void); struct omap_dm_timer *omap_dm_timer_request_specific(int timer_id); diff --git a/include/linux/platform_data/dmtimer-omap.h b/include/linux/platform_data/dmtimer-omap.h new file mode 100644 index 000000000000..a19b78d826e9 --- /dev/null +++ b/include/linux/platform_data/dmtimer-omap.h @@ -0,0 +1,31 @@ +/* + * DMTIMER platform data for TI OMAP platforms + * + * Copyright (C) 2012 Texas Instruments + * Author: Jon Hunter + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see . + */ + +#ifndef __PLATFORM_DATA_DMTIMER_OMAP_H__ +#define __PLATFORM_DATA_DMTIMER_OMAP_H__ + +struct dmtimer_platform_data { + /* set_timer_src - Only used for OMAP1 devices */ + int (*set_timer_src)(struct platform_device *pdev, int source); + u32 timer_capability; + u32 timer_errata; + int (*get_context_loss_count)(struct device *); +}; + +#endif /* __PLATFORM_DATA_DMTIMER_OMAP_H__ */ From f7863f7924951f64068eb5214a3dbecde3807a9a Mon Sep 17 00:00:00 2001 From: Jon Hunter Date: Mon, 1 Oct 2012 15:12:29 -0500 Subject: [PATCH 7/8] ARM: OMAP: Remove unnecessary inclusion of dmtimer.h Some source files are including dmtimer.h but not actually using any dmtimer definitions or functions. Therefore, remove the inclusion dmtimer.h from these source files. Signed-off-by: Jon Hunter Acked-by: Omar Ramirez Luna --- arch/arm/mach-omap1/timer32k.c | 1 - arch/arm/mach-omap2/omap_hwmod_2420_data.c | 1 - arch/arm/mach-omap2/omap_hwmod_2430_data.c | 1 - arch/arm/mach-omap2/pm-debug.c | 1 - drivers/staging/tidspbridge/core/ue_deh.c | 1 - 5 files changed, 5 deletions(-) diff --git a/arch/arm/mach-omap1/timer32k.c b/arch/arm/mach-omap1/timer32k.c index 89368195bf08..41152fadd4c0 100644 --- a/arch/arm/mach-omap1/timer32k.c +++ b/arch/arm/mach-omap1/timer32k.c @@ -51,7 +51,6 @@ #include #include -#include #include diff --git a/arch/arm/mach-omap2/omap_hwmod_2420_data.c b/arch/arm/mach-omap2/omap_hwmod_2420_data.c index a8b3368dca3d..e8efe3d1da6c 100644 --- a/arch/arm/mach-omap2/omap_hwmod_2420_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_2420_data.c @@ -17,7 +17,6 @@ #include #include -#include #include "omap_hwmod.h" #include "l3_2xxx.h" diff --git a/arch/arm/mach-omap2/omap_hwmod_2430_data.c b/arch/arm/mach-omap2/omap_hwmod_2430_data.c index dc768c50e523..32d17e3fd727 100644 --- a/arch/arm/mach-omap2/omap_hwmod_2430_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_2430_data.c @@ -18,7 +18,6 @@ #include #include -#include #include "omap_hwmod.h" #include "mmc.h" diff --git a/arch/arm/mach-omap2/pm-debug.c b/arch/arm/mach-omap2/pm-debug.c index 3cf4fdfd7ab0..e2c291f52f92 100644 --- a/arch/arm/mach-omap2/pm-debug.c +++ b/arch/arm/mach-omap2/pm-debug.c @@ -30,7 +30,6 @@ #include "clock.h" #include "powerdomain.h" #include "clockdomain.h" -#include #include "omap-pm.h" #include "soc.h" diff --git a/drivers/staging/tidspbridge/core/ue_deh.c b/drivers/staging/tidspbridge/core/ue_deh.c index 3d28b2345fbd..6aea6f1b4982 100644 --- a/drivers/staging/tidspbridge/core/ue_deh.c +++ b/drivers/staging/tidspbridge/core/ue_deh.c @@ -19,7 +19,6 @@ #include #include -#include #include #include From 258e84af9799b8c81cf856dcbd8e2d4cc082741d Mon Sep 17 00:00:00 2001 From: Jon Hunter Date: Thu, 15 Nov 2012 13:09:03 -0600 Subject: [PATCH 8/8] ARM: OMAP2+: Fix compiler warning for 32k timer Commit "ARM: OMAP2+: Add device-tree support for 32kHz counter" added structure omap_counter_match to the OMAP2 timer code. When CONFIG_OMAP_32K_TIMER is not defined this structure generates the following as it is not used. CC arch/arm/mach-omap2/timer.o arch/arm/mach-omap2/timer.c:163:28: warning: 'omap_counter_match' defined but not used [-Wunused-variable] Move the definition of omap_counter_match to avoid this warning when CONFIG_OMAP_32K_TIMER is not set. Thanks to Kevin Hilman for tracking down and reporting this problem. Reported-by: Kevin Hilam Signed-off-by: Jon Hunter --- arch/arm/mach-omap2/timer.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/arch/arm/mach-omap2/timer.c b/arch/arm/mach-omap2/timer.c index 4daa8b41c522..b7f43a28e41f 100644 --- a/arch/arm/mach-omap2/timer.c +++ b/arch/arm/mach-omap2/timer.c @@ -162,11 +162,6 @@ static struct of_device_id omap_timer_match[] __initdata = { { } }; -static struct of_device_id omap_counter_match[] __initdata = { - { .compatible = "ti,omap-counter32k", }, - { } -}; - /** * omap_get_timer_dt - get a timer using device-tree * @match - device-tree match structure for matching a device type @@ -406,6 +401,11 @@ static u32 notrace dmtimer_read_sched_clock(void) } #ifdef CONFIG_OMAP_32K_TIMER +static struct of_device_id omap_counter_match[] __initdata = { + { .compatible = "ti,omap-counter32k", }, + { } +}; + /* Setup free-running counter for clocksource */ static int __init omap2_sync32k_clocksource_init(void) {