From: Dom Cobley popcornmix@gmail.com
[ Upstream commit 902dc5c19a8fecd3113dd41cc601b34557bdede9 ]
The hdmi reset got moved to a later point in the commit 9045e91a476b ("drm/vc4: hdmi: Add reset callback").
However, the reset now occurs after vc4_hdmi_cec_init and so tramples the setup of registers like HDMI_CEC_CNTRL_1
This only affects pi0-3 as on pi4 the cec registers are in a separate block
Fixes: 9045e91a476b ("drm/vc4: hdmi: Add reset callback") Reviewed-by: Dave Stevenson dave.stevenson@raspberrypi.com Signed-off-by: Dom Cobley popcornmix@gmail.com Signed-off-by: Maxime Ripard maxime@cerno.tech Acked-by: Hans Verkuil hverkuil-cisco@xs4all.nl Tested-by: Hans Verkuil hverkuil-cisco@xs4all.nl Link: https://patchwork.freedesktop.org/patch/msgid/20210111142309.193441-3-maxime... (cherry picked from commit 7155334f15f360f5c98391c5c7e12af4c13395c4) Signed-off-by: Maarten Lankhorst maarten.lankhorst@linux.intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/vc4/vc4_hdmi.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c index db06f52de9d91..1b2b5e3986ebd 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.c +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c @@ -661,9 +661,6 @@ static void vc4_hdmi_encoder_pre_crtc_configure(struct drm_encoder *encoder) return; }
- if (vc4_hdmi->variant->reset) - vc4_hdmi->variant->reset(vc4_hdmi); - if (vc4_hdmi->variant->phy_init) vc4_hdmi->variant->phy_init(vc4_hdmi, mode);
@@ -1744,6 +1741,9 @@ static int vc4_hdmi_bind(struct device *dev, struct device *master, void *data) vc4_hdmi->disable_wifi_frequencies = of_property_read_bool(dev->of_node, "wifi-2.4ghz-coexistence");
+ if (vc4_hdmi->variant->reset) + vc4_hdmi->variant->reset(vc4_hdmi); + pm_runtime_enable(dev);
drm_simple_encoder_init(drm, encoder, DRM_MODE_ENCODER_TMDS);