On 08/01/2023 17:56, Dmitry Baryshkov wrote:
Attaching DVI sink to the lt9611 requires different setup. Fix the register write to make the DVI displays sync onto the correct sync pulse.Signed-off-by: Dmitry Baryshkov <dmitry.barysh...@linaro.org> --- drivers/gpu/drm/bridge/lontium-lt9611.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/bridge/lontium-lt9611.c b/drivers/gpu/drm/bridge/lontium-lt9611.c index 773d7a56f86f..7f9be74acf0d 100644 --- a/drivers/gpu/drm/bridge/lontium-lt9611.c +++ b/drivers/gpu/drm/bridge/lontium-lt9611.c @@ -352,13 +352,16 @@ static int lt9611_video_check(struct lt9611 *lt9611) return temp; }-static void lt9611_hdmi_tx_digital(struct lt9611 *lt9611)+static void lt9611_hdmi_tx_digital(struct lt9611 *lt9611, bool is_hdmi) { regmap_write(lt9611->regmap, 0x8443, 0x46 - lt9611->vic); regmap_write(lt9611->regmap, 0x8447, lt9611->vic); regmap_write(lt9611->regmap, 0x843d, 0x0a); /* UD1 infoframe */- regmap_write(lt9611->regmap, 0x82d6, 0x8c);+ if (is_hdmi) + regmap_write(lt9611->regmap, 0x82d6, 0x8c); + else + regmap_write(lt9611->regmap, 0x82d6, 0x0c); regmap_write(lt9611->regmap, 0x82d7, 0x04); }@@ -719,7 +722,7 @@ lt9611_bridge_atomic_enable(struct drm_bridge *bridge,}lt9611_mipi_input_analog(lt9611);- lt9611_hdmi_tx_digital(lt9611); + lt9611_hdmi_tx_digital(lt9611, connector->display_info.is_hdmi); lt9611_hdmi_tx_phy(lt9611);msleep(500);
Reviewed-by: Neil Armstrong <neil.armstr...@linaro.org>
