Message ID | 20240615170417.3134517-5-jonas@kwiboo.se (mailing list archive) |
---|---|
State | New, archived |
Headers | show |
Series | rockchip: Enable 4K@60Hz mode on RK3228, RK3328, RK3399 and RK356x | expand |
diff --git a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c index fe33092abbe7..aae48e906af1 100644 --- a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c +++ b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c @@ -434,6 +434,8 @@ static void dw_hdmi_rk3328_setup_hpd(struct dw_hdmi *dw_hdmi, void *data) HIWORD_UPDATE(RK3328_HDMI_SDAIN_MSK | RK3328_HDMI_SCLIN_MSK, RK3328_HDMI_SDAIN_MSK | RK3328_HDMI_SCLIN_MSK | RK3328_HDMI_HPD_IOE)); + + dw_hdmi_rk3328_read_hpd(dw_hdmi, data); } static const struct dw_hdmi_phy_ops rk3228_hdmi_phy_ops = {
EDID cannot be read on RK3328 until after read_hpd has been called and correct io voltage has been configured based on connection status. When a forced mode is used, e.g. video=1920x1080@60e, the connector detect ops, that in turn normally calls the read_hpd, never gets called. This result in reading EDID to fail in connector get_modes ops. Call dw_hdmi_rk3328_read_hpd at end of dw_hdmi_rk3328_setup_hpd to correct io voltage and allow reading EDID after setup_hpd. Fixes: 1c53ba8f22a1 ("drm/rockchip: dw_hdmi: add dw-hdmi support for the rk3328") Signed-off-by: Jonas Karlman <jonas@kwiboo.se> --- drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c | 2 ++ 1 file changed, 2 insertions(+)