Re: [PATCH] drm/omap: tiler: add hibernation callback

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Hi All,

On 02/25/2015 08:08 PM, grygorii.strashko@xxxxxxxxxx wrote:
From: Grygorii Strashko <grygorii.strashko@xxxxxxxxxx>

Setting a dev_pm_ops resume callback but not a set of
hibernation handler means that pm function will not be
called upon hibernation.
Fix this by using SIMPLE_DEV_PM_OPS, which appropriately
assigns the suspend and hibernation handlers and move
omap_dmm_resume under CONFIG_PM_SLEEP to avoid build warnings.

Signed-off-by: Grygorii Strashko <grygorii.strashko@xxxxxxxxxx>
---
  drivers/gpu/drm/omapdrm/omap_dmm_tiler.c | 10 +++-------
  1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c b/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c
index 56c6055..afb8cfc 100644
--- a/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c
+++ b/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c
@@ -941,7 +941,7 @@ error:
  }
  #endif

-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
  static int omap_dmm_resume(struct device *dev)
  {
  	struct tcm_area area;
@@ -965,12 +965,10 @@ static int omap_dmm_resume(struct device *dev)

  	return 0;
  }
-
-static const struct dev_pm_ops omap_dmm_pm_ops = {
-	.resume = omap_dmm_resume,
-};
  #endif

+SIMPLE_DEV_PM_OPS(omap_dmm_pm_ops, NULL, omap_dmm_resume);
+
  #if defined(CONFIG_OF)
  static const struct of_device_id dmm_of_match[] = {
  	{ .compatible = "ti,omap4-dmm", },
@@ -986,9 +984,7 @@ struct platform_driver omap_dmm_driver = {
  		.owner = THIS_MODULE,
  		.name = DMM_DRIVER_NAME,
  		.of_match_table = of_match_ptr(dmm_of_match),
-#ifdef CONFIG_PM
  		.pm = &omap_dmm_pm_ops,
-#endif
  	},
  };



Any comments on this?

--
regards,
-grygorii
--
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