On 06.08.2018 21:31, Leonard Crestez wrote:
Since power to the lcdif block can be lost on suspend implement PM_SLEEP_OPS using drm_mode_config_helper_suspend/resume to save/restore the current mode.
Signed-off-by: Leonard Crestez leonard.crestez@nxp.com
Reviewed-by: Stefan Agner stefan@agner.ch
drivers/gpu/drm/mxsfb/mxsfb_drv.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+)
diff --git a/drivers/gpu/drm/mxsfb/mxsfb_drv.c b/drivers/gpu/drm/mxsfb/mxsfb_drv.c index 68d79f5dc0d3..d797dfd40d98 100644 --- a/drivers/gpu/drm/mxsfb/mxsfb_drv.c +++ b/drivers/gpu/drm/mxsfb/mxsfb_drv.c @@ -416,17 +416,38 @@ static int mxsfb_remove(struct platform_device *pdev) drm_dev_unref(drm);
return 0; }
+#ifdef CONFIG_PM_SLEEP +static int mxsfb_suspend(struct device *dev) +{
struct drm_device *drm = dev_get_drvdata(dev);return drm_mode_config_helper_suspend(drm);+}
+static int mxsfb_resume(struct device *dev) +{
struct drm_device *drm = dev_get_drvdata(dev);return drm_mode_config_helper_resume(drm);+} +#endif
+static const struct dev_pm_ops mxsfb_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(mxsfb_suspend, mxsfb_resume)+};
static struct platform_driver mxsfb_platform_driver = { .probe = mxsfb_probe, .remove = mxsfb_remove, .id_table = mxsfb_devtype, .driver = { .name = "mxsfb", .of_match_table = mxsfb_dt_ids,
.pm = &mxsfb_pm_ops,};
module_platform_driver(mxsfb_platform_driver);