From: Andy Yan <andy....@rock-chips.com>
Use the common dp link power up/down helpers to avoid duplicating code.
Signed-off-by: Andy Yan <andy....@rock-chips.com>
Reviewed-by: Dmitry Baryshkov <dmitry.barysh...@oss.qualcomm.com>
---
(no changes since v1)
.../drm/bridge/analogix/analogix-anx78xx.c | 30 +------------------
1 file changed, 1 insertion(+), 29 deletions(-)
diff --git a/drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c
b/drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c
index f74694bb9c50..3d9daa885eef 100644
--- a/drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c
+++ b/drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c
@@ -656,35 +656,7 @@ static int anx78xx_dp_link_training(struct anx78xx
*anx78xx)
if (err)
return err;
- /*
- * Power up the sink (DP_SET_POWER register is only available on DPCD
- * v1.1 and later).
- */
- if (anx78xx->dpcd[DP_DPCD_REV] >= 0x11) {
- err = drm_dp_dpcd_readb(&anx78xx->aux, DP_SET_POWER, &dpcd[0]);
- if (err < 0) {
- DRM_ERROR("Failed to read DP_SET_POWER register: %d\n",
- err);
- return err;
- }
-
- dpcd[0] &= ~DP_SET_POWER_MASK;
- dpcd[0] |= DP_SET_POWER_D0;
-
- err = drm_dp_dpcd_writeb(&anx78xx->aux, DP_SET_POWER, dpcd[0]);
- if (err < 0) {
- DRM_ERROR("Failed to power up DisplayPort link: %d\n",
- err);
- return err;
- }
-
- /*
- * According to the DP 1.1 specification, a "Sink Device must
- * exit the power saving state within 1 ms" (Section 2.5.3.1,
- * Table 5-52, "Sink Control Field" (register 0x600).
- */
- usleep_range(1000, 2000);
- }
+ drm_dp_link_power_up(&anx78xx->aux, anx78xx->dpcd[DP_DPCD_REV]);
/* Possibly enable downspread on the sink */
err = regmap_write(anx78xx->map[I2C_IDX_TX_P0],
--
2.43.0
