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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>
This commit is contained in:
Ulf Hansson 2014-04-23 21:52:02 +02:00 committed by Vinod Koul
parent 80245216cc
commit 2dafca17c8
1 changed files with 10 additions and 11 deletions
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19
drivers/dma/ste_dma40.c
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@ -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;
};
@ -3030,7 +3028,6 @@ 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);
writel_relaxed(D40_DREG_GCC_ENABLE_ALL,
@ -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;