[7/7] mfd: exynos-lpass: Add runtime PM support

Message ID 1485345031-2948-8-git-send-email-m.szyprowski@samsung.com
State New
Headers show
Series
  • Pad retentions support for Exynos5433
Related show

Commit Message

Marek Szyprowski Jan. 25, 2017, 11:50 a.m.
Convert exisitng lpass-suspend/resume callbacks into runtime PM callbacks.
This way Exynos LPASS driver will be ready for use with power domains
enabled. LPASS will be runtime resumed/suspended as a result of its child
devices runtime PM transitions.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>

---
 drivers/mfd/exynos-lpass.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

-- 
1.9.1

--
To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Comments

Krzysztof Kozlowski Jan. 25, 2017, 8:04 p.m. | #1
On Wed, Jan 25, 2017 at 12:50:31PM +0100, Marek Szyprowski wrote:
> Convert exisitng lpass-suspend/resume callbacks into runtime PM callbacks.

> This way Exynos LPASS driver will be ready for use with power domains

> enabled. LPASS will be runtime resumed/suspended as a result of its child

> devices runtime PM transitions.

> 

> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>

> ---

>  drivers/mfd/exynos-lpass.c | 10 ++++++++--

>  1 file changed, 8 insertions(+), 2 deletions(-)

> 


Acked-by: Krzysztof Kozlowski <krzk@kernel.org>


Best regards,
Krzysztof

--
To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Patch hide | download patch | download mbox

diff --git a/drivers/mfd/exynos-lpass.c b/drivers/mfd/exynos-lpass.c
index 44d8ea1a978b..d383b2f6f207 100644
--- a/drivers/mfd/exynos-lpass.c
+++ b/drivers/mfd/exynos-lpass.c
@@ -22,6 +22,7 @@ 
 #include <linux/of.h>
 #include <linux/of_platform.h>
 #include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
 #include <linux/regmap.h>
 #include <linux/types.h>
 
@@ -132,6 +133,8 @@  static int exynos_lpass_probe(struct platform_device *pdev)
 	}
 
 	platform_set_drvdata(pdev, lpass);
+	pm_runtime_set_active(dev);
+	pm_runtime_enable(dev);
 	exynos_lpass_enable(lpass);
 
 	return of_platform_populate(dev->of_node, NULL, NULL, dev);
@@ -155,8 +158,11 @@  static int __maybe_unused exynos_lpass_resume(struct device *dev)
 	return 0;
 }
 
-static SIMPLE_DEV_PM_OPS(lpass_pm_ops, exynos_lpass_suspend,
-					exynos_lpass_resume);
+static const struct dev_pm_ops lpass_pm_ops = {
+	SET_RUNTIME_PM_OPS(exynos_lpass_suspend, exynos_lpass_resume, NULL)
+	SET_LATE_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+				     pm_runtime_force_resume)
+};
 
 static const struct of_device_id exynos_lpass_of_match[] = {
 	{ .compatible = "samsung,exynos5433-lpass" },