| Message ID | 20200701120402.6444-1-yannick.fertre@st.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | drm/stm: ltdc: remove call of pm-runtime functions | expand |
On 7/1/20 2:04 PM, Yannick Fertre wrote: > It is not necessary to suspend or stop the ltdc clocks > to modify the pixel clock. > > Signed-off-by: Yannick Fertre <yannick.fertre@st.com> > --- > drivers/gpu/drm/stm/ltdc.c | 16 ---------------- > 1 file changed, 16 deletions(-) > > diff --git a/drivers/gpu/drm/stm/ltdc.c b/drivers/gpu/drm/stm/ltdc.c > index 3f590d916e91..6e28f707092f 100644 > --- a/drivers/gpu/drm/stm/ltdc.c > +++ b/drivers/gpu/drm/stm/ltdc.c > @@ -506,15 +506,7 @@ static bool ltdc_crtc_mode_fixup(struct drm_crtc *crtc, > struct drm_display_mode *adjusted_mode) > { > struct ltdc_device *ldev = crtc_to_ltdc(crtc); > - struct drm_device *ddev = crtc->dev; > int rate = mode->clock * 1000; > - bool runtime_active; > - int ret; > - > - runtime_active = pm_runtime_active(ddev->dev); > - > - if (runtime_active) > - pm_runtime_put_sync(ddev->dev); > > if (clk_set_rate(ldev->pixel_clk, rate) < 0) { > DRM_ERROR("Cannot set rate (%dHz) for pixel clk\n", rate); > @@ -523,14 +515,6 @@ static bool ltdc_crtc_mode_fixup(struct drm_crtc *crtc, > > adjusted_mode->clock = clk_get_rate(ldev->pixel_clk) / 1000; > > - if (runtime_active) { > - ret = pm_runtime_get_sync(ddev->dev); > - if (ret) { > - DRM_ERROR("Failed to fixup mode, cannot get sync\n"); > - return false; > - } > - } > - > DRM_DEBUG_DRIVER("requested clock %dkHz, adjusted clock %dkHz\n", > mode->clock, adjusted_mode->clock); > > Hi Yannick, Many thanks for your patch, Acked-by: Philippe Cornu <philippe.cornu@st.com> Philippe :-)
Le jeu. 2 juil. 2020 à 14:18, Philippe CORNU <philippe.cornu@st.com> a écrit : > > > > On 7/1/20 2:04 PM, Yannick Fertre wrote: > > It is not necessary to suspend or stop the ltdc clocks > > to modify the pixel clock. > > > > Signed-off-by: Yannick Fertre <yannick.fertre@st.com> > > --- > > drivers/gpu/drm/stm/ltdc.c | 16 ---------------- > > 1 file changed, 16 deletions(-) > > > > diff --git a/drivers/gpu/drm/stm/ltdc.c b/drivers/gpu/drm/stm/ltdc.c > > index 3f590d916e91..6e28f707092f 100644 > > --- a/drivers/gpu/drm/stm/ltdc.c > > +++ b/drivers/gpu/drm/stm/ltdc.c > > @@ -506,15 +506,7 @@ static bool ltdc_crtc_mode_fixup(struct drm_crtc *crtc, > > struct drm_display_mode *adjusted_mode) > > { > > struct ltdc_device *ldev = crtc_to_ltdc(crtc); > > - struct drm_device *ddev = crtc->dev; > > int rate = mode->clock * 1000; > > - bool runtime_active; > > - int ret; > > - > > - runtime_active = pm_runtime_active(ddev->dev); > > - > > - if (runtime_active) > > - pm_runtime_put_sync(ddev->dev); > > > > if (clk_set_rate(ldev->pixel_clk, rate) < 0) { > > DRM_ERROR("Cannot set rate (%dHz) for pixel clk\n", rate); > > @@ -523,14 +515,6 @@ static bool ltdc_crtc_mode_fixup(struct drm_crtc *crtc, > > > > adjusted_mode->clock = clk_get_rate(ldev->pixel_clk) / 1000; > > > > - if (runtime_active) { > > - ret = pm_runtime_get_sync(ddev->dev); > > - if (ret) { > > - DRM_ERROR("Failed to fixup mode, cannot get sync\n"); > > - return false; > > - } > > - } > > - > > DRM_DEBUG_DRIVER("requested clock %dkHz, adjusted clock %dkHz\n", > > mode->clock, adjusted_mode->clock); > > > > > Hi Yannick, > Many thanks for your patch, > Acked-by: Philippe Cornu <philippe.cornu@st.com> > Philippe :-) Applied on drm-misc-next. Thanks, Benjamin > _______________________________________________ > dri-devel mailing list > dri-devel@lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/dri-devel
diff --git a/drivers/gpu/drm/stm/ltdc.c b/drivers/gpu/drm/stm/ltdc.c index 3f590d916e91..6e28f707092f 100644 --- a/drivers/gpu/drm/stm/ltdc.c +++ b/drivers/gpu/drm/stm/ltdc.c @@ -506,15 +506,7 @@ static bool ltdc_crtc_mode_fixup(struct drm_crtc *crtc, struct drm_display_mode *adjusted_mode) { struct ltdc_device *ldev = crtc_to_ltdc(crtc); - struct drm_device *ddev = crtc->dev; int rate = mode->clock * 1000; - bool runtime_active; - int ret; - - runtime_active = pm_runtime_active(ddev->dev); - - if (runtime_active) - pm_runtime_put_sync(ddev->dev); if (clk_set_rate(ldev->pixel_clk, rate) < 0) { DRM_ERROR("Cannot set rate (%dHz) for pixel clk\n", rate); @@ -523,14 +515,6 @@ static bool ltdc_crtc_mode_fixup(struct drm_crtc *crtc, adjusted_mode->clock = clk_get_rate(ldev->pixel_clk) / 1000; - if (runtime_active) { - ret = pm_runtime_get_sync(ddev->dev); - if (ret) { - DRM_ERROR("Failed to fixup mode, cannot get sync\n"); - return false; - } - } - DRM_DEBUG_DRIVER("requested clock %dkHz, adjusted clock %dkHz\n", mode->clock, adjusted_mode->clock);
It is not necessary to suspend or stop the ltdc clocks to modify the pixel clock. Signed-off-by: Yannick Fertre <yannick.fertre@st.com> --- drivers/gpu/drm/stm/ltdc.c | 16 ---------------- 1 file changed, 16 deletions(-)