drm/bridge: anx7625: Use common macros for DP power sequencing commands

[ Upstream commit 2ba776f ]

The DRM DP code has macros for the DP power sequencing commands. Use
them in the anx7625 driver instead of raw numbers.

Fixes: 548b512 ("drm/bridge: anx7625: send DPCD command to downstream")
Fixes: 27f2635 ("drm/bridge: anx7625: Set downstream sink into normal status")
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Reviewed-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230710090929.1873646-1-wenst@chromium.org
Signed-off-by: Sasha Levin <sashal@kernel.org>

drivers/gpu/drm/bridge/analogix/anx7625.c

@@ -933,8 +933,8 @@ static void anx7625_dp_start(struct anx7625_data *ctx)
 
 	dev_dbg(dev, "set downstream sink into normal\n");
 	/* Downstream sink enter into normal mode */
-	data = 1;
-	ret = anx7625_aux_trans(ctx, DP_AUX_NATIVE_WRITE, 0x000600, 1, &data);
+	data = DP_SET_POWER_D0;
+	ret = anx7625_aux_trans(ctx, DP_AUX_NATIVE_WRITE, DP_SET_POWER, 1, &data);
 	if (ret < 0)
 		dev_err(dev, "IO error : set sink into normal mode fail\n");
 
@@ -973,8 +973,8 @@ static void anx7625_dp_stop(struct anx7625_data *ctx)
 
 	dev_dbg(dev, "notify downstream enter into standby\n");
 	/* Downstream monitor enter into standby mode */
-	data = 2;
-	ret |= anx7625_aux_trans(ctx, DP_AUX_NATIVE_WRITE, 0x000600, 1, &data);
+	data = DP_SET_POWER_D3;
+	ret |= anx7625_aux_trans(ctx, DP_AUX_NATIVE_WRITE, DP_SET_POWER, 1, &data);
 	if (ret < 0)
 		DRM_DEV_ERROR(dev, "IO error : mute video fail\n");