diff options
| author | Leonard Crestez <leonard.crestez@nxp.com> | 2018-09-17 16:42:14 +0300 |
|---|---|---|
| committer | Jason Liu <jason.hui.liu@nxp.com> | 2019-02-12 10:35:05 +0800 |
| commit | 2c12c2336a2be7a99bd51cf584294346b1ff39d1 (patch) | |
| tree | 2e99c6ca284f5dc960fd20cd71d150699fc4c8fe | |
| parent | 3f40d3515ce8901f7a928cf0a5d220845e213004 (diff) | |
MLK-20181-6: drm/mxsfb: Add PM_SLEEP support
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>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Stefan Agner <stefan@agner.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/cfa1a4083eefd112362e640deeb2e120584ac3f5.1537191359.git.leonard.crestez@nxp.com
| -rw-r--r-- | drivers/gpu/drm/mxsfb/mxsfb_drv.c | 52 |
1 files changed, 4 insertions, 48 deletions
diff --git a/drivers/gpu/drm/mxsfb/mxsfb_drv.c b/drivers/gpu/drm/mxsfb/mxsfb_drv.c index 46df81b1b3a9..46ad4c1ba6cc 100644 --- a/drivers/gpu/drm/mxsfb/mxsfb_drv.c +++ b/drivers/gpu/drm/mxsfb/mxsfb_drv.c @@ -548,67 +548,23 @@ static int mxsfb_remove(struct platform_device *pdev) return 0; } -#ifdef CONFIG_PM -static int mxsfb_runtime_suspend(struct device *dev) -{ - struct drm_device *drm = dev_get_drvdata(dev); - struct mxsfb_drm_private *mxsfb = drm->dev_private; - - if (!drm->registered) - return 0; - - if (mxsfb->enabled) { - mxsfb_crtc_disable(mxsfb); - mxsfb->suspended = true; - } - - return 0; -} - -static int mxsfb_runtime_resume(struct device *dev) -{ - struct drm_device *drm = dev_get_drvdata(dev); - struct mxsfb_drm_private *mxsfb = drm->dev_private; - - if (!drm->registered || !mxsfb->suspended) - return 0; - - mxsfb_crtc_enable(mxsfb); - mxsfb->suspended = false; - - return 0; -} - +#ifdef CONFIG_PM_SLEEP static int mxsfb_suspend(struct device *dev) { struct drm_device *drm = dev_get_drvdata(dev); - struct mxsfb_drm_private *mxsfb = drm->dev_private; - - if (mxsfb->enabled) { - mxsfb_crtc_disable(mxsfb); - mxsfb->suspended = true; - } - return 0; + return drm_mode_config_helper_suspend(drm); } static int mxsfb_resume(struct device *dev) { struct drm_device *drm = dev_get_drvdata(dev); - struct mxsfb_drm_private *mxsfb = drm->dev_private; - - if (!mxsfb->suspended) - return 0; - mxsfb_crtc_enable(mxsfb); - mxsfb->suspended = false; - - return 0; + return drm_mode_config_helper_resume(drm); } #endif static const struct dev_pm_ops mxsfb_pm_ops = { - SET_RUNTIME_PM_OPS(mxsfb_runtime_suspend, mxsfb_runtime_resume, NULL) SET_SYSTEM_SLEEP_PM_OPS(mxsfb_suspend, mxsfb_resume) }; @@ -619,7 +575,7 @@ static struct platform_driver mxsfb_platform_driver = { .driver = { .name = "mxsfb_drm", .of_match_table = mxsfb_dt_ids, - .pm = &mxsfb_pm_ops, + .pm = &mxsfb_pm_ops, }, }; |