MLK-25156: drm: dw_hdmi: reset hdmi phy power

reset hdmi phy power. Signed-off-by: Sandor Yu <[email protected]> Reviewed-by: Robby Cai <[email protected]>
zandrey · Jan 14, 2021 · a078ede · a078ede
1 parent 63d09a7
commit a078ede
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/drivers/gpu/drm/imx/dw_hdmi-imx.c b/drivers/gpu/drm/imx/dw_hdmi-imx.c
@@ -276,8 +276,11 @@ static int imx8mp_hdmi_phy_init(struct dw_hdmi *dw_hdmi, void *data,
 	imx8mp_hdmi_pavi_powerup();
 	imx8mp_hdmi_pvi_enable(mode);
 
-	/* HDMI PHY power up */
 	regmap_read(hdmi->regmap, 0x200, &val);
+	/* HDMI PHY power off */
+	val |= 0x8;
+	regmap_write(hdmi->regmap, 0x200, val);
+	/* HDMI PHY power on */
 	val &= ~0x8;
 	/* Enable CEC */
 	val |= 0x2;