diff options
| author | Sylvain Rochet <sylvain.rochet@finsecur.com> | 2015-02-22 17:51:04 (GMT) |
|---|---|---|
| committer | Boris Brezillon <boris.brezillon@free-electrons.com> | 2015-02-24 10:24:38 (GMT) |
| commit | 16e6004eb7a8686bae526ab9ea22c94ec901897b (patch) | |
| tree | 81a760b7b6df48c29f9372bb32f63fbd9bddcfba /drivers/gpu/drm/atmel-hlcdc | |
| parent | 58486982586da444f940dc8fdea598649b4a2fe8 (diff) | |
| download | linux-16e6004eb7a8686bae526ab9ea22c94ec901897b.tar.xz | |
drm: atmel-hlcdc: Add pinctrl PM select sleep,default state in CRTC suspend/resume
Some LCD panels have back-powering issue when un-powered, allows users
to use an alternate pinctrl "sleep" in order to clamp outputs to a
wanted state at suspend.
Signed-off-by: Sylvain Rochet <sylvain.rochet@finsecur.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Diffstat (limited to 'drivers/gpu/drm/atmel-hlcdc')
| -rw-r--r-- | drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c index a120246..b81cea6 100644 --- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c +++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c @@ -21,6 +21,7 @@ #include <linux/clk.h> #include <linux/pm.h> #include <linux/pm_runtime.h> +#include <linux/pinctrl/consumer.h> #include <drm/drm_crtc.h> #include <drm/drm_crtc_helper.h> @@ -157,6 +158,7 @@ static void atmel_hlcdc_crtc_disable(struct drm_crtc *c) cpu_relax(); clk_disable_unprepare(crtc->dc->hlcdc->sys_clk); + pinctrl_pm_select_sleep_state(dev->dev); pm_runtime_allow(dev->dev); @@ -179,6 +181,7 @@ static void atmel_hlcdc_crtc_enable(struct drm_crtc *c) pm_runtime_forbid(dev->dev); + pinctrl_pm_select_default_state(dev->dev); clk_prepare_enable(crtc->dc->hlcdc->sys_clk); regmap_write(regmap, ATMEL_HLCDC_EN, ATMEL_HLCDC_PIXEL_CLK); |