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authorUlf Hansson <ulf.hansson@linaro.org>2014-04-23 21:52:02 +0200
committerVinod Koul <vinod.koul@intel.com>2014-05-07 11:50:27 +0530
commit2dafca17c8807bc622daf111ec359a4baad550f6 (patch)
treed1e0571bda417b05881f2a10b4e86e5761322c8d /drivers/dma
parent80245216ccbdb4b1dce4db714e0fdc692c81af6d (diff)
dma: ste_dma40: Don't require CONFIG_PM_RUNTIME
While probing, don't rely on CONFIG_PM_RUNTIME to be configured. Instead, let's power up the device and make it fully operational. Update the runtime PM status to reflect the active state. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma')
-rw-r--r--drivers/dma/ste_dma40.c21
1 files changed, 10 insertions, 11 deletions
diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c
index 6e97cf6931f1..45e809f4acda 100644
--- a/drivers/dma/ste_dma40.c
+++ b/drivers/dma/ste_dma40.c
@@ -556,7 +556,6 @@ struct d40_gen_dmac {
* later
* @reg_val_backup_chan: Backup data for standard channel parameter registers.
* @gcc_pwr_off_mask: Mask to maintain the channels that can be turned off.
- * @initialized: true if the dma has been initialized
* @gen_dmac: the struct for generic registers values to represent u8500/8540
* DMA controller
*/
@@ -594,7 +593,6 @@ struct d40_base {
u32 reg_val_backup_v4[BACKUP_REGS_SZ_MAX];
u32 *reg_val_backup_chan;
u16 gcc_pwr_off_mask;
- bool initialized;
struct d40_gen_dmac gen_dmac;
};
@@ -3030,8 +3028,7 @@ static int dma40_runtime_resume(struct device *dev)
struct platform_device *pdev = to_platform_device(dev);
struct d40_base *base = platform_get_drvdata(pdev);
- if (base->initialized)
- d40_save_restore_registers(base, false);
+ d40_save_restore_registers(base, false);
writel_relaxed(D40_DREG_GCC_ENABLE_ALL,
base->virtbase + D40_DREG_GCC);
@@ -3645,12 +3642,6 @@ static int __init d40_probe(struct platform_device *pdev)
goto failure;
}
- pm_runtime_irq_safe(base->dev);
- pm_runtime_set_autosuspend_delay(base->dev, DMA40_AUTOSUSPEND_DELAY);
- pm_runtime_use_autosuspend(base->dev);
- pm_runtime_enable(base->dev);
- pm_runtime_resume(base->dev);
-
if (base->plat_data->use_esram_lcla) {
base->lcpa_regulator = regulator_get(base->dev, "lcla_esram");
@@ -3671,7 +3662,15 @@ static int __init d40_probe(struct platform_device *pdev)
}
}
- base->initialized = true;
+ writel_relaxed(D40_DREG_GCC_ENABLE_ALL, base->virtbase + D40_DREG_GCC);
+
+ pm_runtime_irq_safe(base->dev);
+ pm_runtime_set_autosuspend_delay(base->dev, DMA40_AUTOSUSPEND_DELAY);
+ pm_runtime_use_autosuspend(base->dev);
+ pm_runtime_mark_last_busy(base->dev);
+ pm_runtime_set_active(base->dev);
+ pm_runtime_enable(base->dev);
+
ret = d40_dmaengine_init(base, num_reserved_chans);
if (ret)
goto failure;