[PATCH v3 21/29] drm/rockchip: inno_hdmi: Don't power up the phy after resetting

Alex Bee knaerzche at gmail.com
Tue Dec 19 09:00:51 PST 2023


inno_hdmi_reset is only ever called when initializing the controller. At
this point it’s completely uneccessary to power up the PHY, since all
what has to work at this point is the DDC bus. The phy will be powered up
correctly when a mode is set in inno_hdmi_encoder_enable and disabled in
inno_hdmi_encoder_disable.
Set it to LOWER_PWR after resetting the controller.

Signed-off-by: Alex Bee <knaerzche at gmail.com>
---
changes in v3:
 - new patch

 drivers/gpu/drm/rockchip/inno_hdmi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/rockchip/inno_hdmi.c b/drivers/gpu/drm/rockchip/inno_hdmi.c
index e6d37772500c..9fea464b6234 100644
--- a/drivers/gpu/drm/rockchip/inno_hdmi.c
+++ b/drivers/gpu/drm/rockchip/inno_hdmi.c
@@ -202,7 +202,7 @@ static void inno_hdmi_reset(struct inno_hdmi *hdmi)
 	val = v_REG_CLK_INV | v_REG_CLK_SOURCE_SYS | v_PWR_ON | v_INT_POL_HIGH;
 	hdmi_modb(hdmi, HDMI_SYS_CTRL, msk, val);
 
-	inno_hdmi_set_pwr_mode(hdmi, NORMAL);
+	inno_hdmi_set_pwr_mode(hdmi, LOWER_PWR);
 }
 
 static void inno_hdmi_disable_frame(struct inno_hdmi *hdmi,
-- 
2.43.0




More information about the linux-arm-kernel mailing list