It is not necessary to suspend or stop the ltdc clocks
to modify the pixel clock.
Signed-off-by: Yannick Fertre <yannick.fertre@xxxxxx>
---
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);
--
2.17.1
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