If we fail to enable the DPI clock, we just ignore the error and moves forward. Let's return an error instead.
Reviewed-by: Dave Stevenson dave.stevenson@raspberrypi.com Signed-off-by: Maxime Ripard maxime@cerno.tech --- drivers/gpu/drm/vc4/vc4_dpi.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/vc4/vc4_dpi.c b/drivers/gpu/drm/vc4/vc4_dpi.c index d1eaafb43bd1..658e0aa9e2e1 100644 --- a/drivers/gpu/drm/vc4/vc4_dpi.c +++ b/drivers/gpu/drm/vc4/vc4_dpi.c @@ -270,6 +270,7 @@ static int vc4_dpi_bind(struct device *dev, struct device *master, void *data) DRM_ERROR("Failed to get core clock: %d\n", ret); return ret; } + dpi->pixel_clock = devm_clk_get(dev, "pixel"); if (IS_ERR(dpi->pixel_clock)) { ret = PTR_ERR(dpi->pixel_clock); @@ -279,8 +280,10 @@ static int vc4_dpi_bind(struct device *dev, struct device *master, void *data) }
ret = clk_prepare_enable(dpi->core_clock); - if (ret) + if (ret) { DRM_ERROR("Failed to turn on core clock: %d\n", ret); + return ret; + }
drm_simple_encoder_init(drm, &dpi->encoder.base, DRM_MODE_ENCODER_DPI); drm_encoder_helper_add(&dpi->encoder.base, &vc4_dpi_encoder_helper_funcs);