From ffe07ceae1ae4b00b776c59694eddd9dd615dcea Mon Sep 17 00:00:00 2001 From: Tarun Kanti DebBarma Date: Tue, 20 Sep 2011 17:00:21 +0530 Subject: [PATCH] ARM: OMAP: dmtimer: pm_runtime support Add pm_runtime feature to dmtimer whereby *_runtime_get_sync() is called within omap_dm_timer_enable(), pm_runtime_put() is called in omap_dm_timer_disable(). In addition to calling pm_runtime_enable, we are calling pm_runtime_irq_safe so that they can be called from interrupt context. Signed-off-by: Tarun Kanti DebBarma Signed-off-by: Partha Basak Reviewed-by: Santosh Shilimkar Acked-by: Cousson, Benoit Signed-off-by: Tony Lindgren --- arch/arm/plat-omap/dmtimer.c | 33 +++++++---------------- arch/arm/plat-omap/include/plat/dmtimer.h | 1 - 2 files changed, 10 insertions(+), 24 deletions(-) diff --git a/arch/arm/plat-omap/dmtimer.c b/arch/arm/plat-omap/dmtimer.c index 601920860597..ac904c2ea058 100644 --- a/arch/arm/plat-omap/dmtimer.c +++ b/arch/arm/plat-omap/dmtimer.c @@ -38,6 +38,7 @@ #include #include #include +#include #include @@ -202,33 +203,13 @@ EXPORT_SYMBOL_GPL(omap_dm_timer_free); void omap_dm_timer_enable(struct omap_dm_timer *timer) { - struct dmtimer_platform_data *pdata = timer->pdev->dev.platform_data; - - if (timer->enabled) - return; - - if (!pdata->needs_manual_reset) { - clk_enable(timer->fclk); - clk_enable(timer->iclk); - } - - timer->enabled = 1; + pm_runtime_get_sync(&timer->pdev->dev); } EXPORT_SYMBOL_GPL(omap_dm_timer_enable); void omap_dm_timer_disable(struct omap_dm_timer *timer) { - struct dmtimer_platform_data *pdata = timer->pdev->dev.platform_data; - - if (!timer->enabled) - return; - - if (!pdata->needs_manual_reset) { - clk_disable(timer->iclk); - clk_disable(timer->fclk); - } - - timer->enabled = 0; + pm_runtime_put(&timer->pdev->dev); } EXPORT_SYMBOL_GPL(omap_dm_timer_disable); @@ -460,7 +441,7 @@ int omap_dm_timers_active(void) struct omap_dm_timer *timer; list_for_each_entry(timer, &omap_timer_list, node) { - if (!timer->enabled) + if (!timer->reserved) continue; if (omap_dm_timer_read_reg(timer, OMAP_TIMER_CTRL_REG) & @@ -530,6 +511,12 @@ static int __devinit omap_dm_timer_probe(struct platform_device *pdev) timer->irq = irq->start; timer->pdev = pdev; + /* Skip pm_runtime_enable for OMAP1 */ + if (!pdata->needs_manual_reset) { + pm_runtime_enable(&pdev->dev); + pm_runtime_irq_safe(&pdev->dev); + } + /* add the timer element to the list */ spin_lock_irqsave(&dm_timer_lock, flags); list_add_tail(&timer->node, &omap_timer_list); diff --git a/arch/arm/plat-omap/include/plat/dmtimer.h b/arch/arm/plat-omap/include/plat/dmtimer.h index 2ac7538541b2..4e3a32609abf 100644 --- a/arch/arm/plat-omap/include/plat/dmtimer.h +++ b/arch/arm/plat-omap/include/plat/dmtimer.h @@ -243,7 +243,6 @@ struct omap_dm_timer { unsigned long rate; unsigned reserved:1; - unsigned enabled:1; unsigned posted:1; struct platform_device *pdev; struct list_head node; -- 2.34.1