Patch "drm/bridge: anx7625: Use common macros for HDCP capabilities" has been added to the 6.4-stable tree

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This is a note to let you know that I've just added the patch titled

    drm/bridge: anx7625: Use common macros for HDCP capabilities

to the 6.4-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     drm-bridge-anx7625-use-common-macros-for-hdcp-capabi.patch
and it can be found in the queue-6.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit c38d1196786525d939efa0dbf5e1e6ba3003f998
Author: Chen-Yu Tsai <wenst@xxxxxxxxxxxx>
Date:   Mon Jul 10 17:12:01 2023 +0800

    drm/bridge: anx7625: Use common macros for HDCP capabilities
    
    [ Upstream commit 41639b3a8b0f1f194dfe0577d99db70613f78626 ]
    
    The DRM DP code has macros for the DP HDCP capabilities. Use them in the
    anx7625 driver instead of raw numbers.
    
    Fixes: cd1637c7e480 ("drm/bridge: anx7625: add HDCP support")
    Suggested-by: Nícolas F. R. A. Prado <nfraprado@xxxxxxxxxxxxx>
    Signed-off-by: Chen-Yu Tsai <wenst@xxxxxxxxxxxx>
    Reviewed-by: Robert Foss <rfoss@xxxxxxxxxx>
    Signed-off-by: Robert Foss <rfoss@xxxxxxxxxx>
    Link: https://patchwork.freedesktop.org/patch/msgid/20230710091203.1874317-1-wenst@xxxxxxxxxxxx
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.c b/drivers/gpu/drm/bridge/analogix/anx7625.c
index 4f1286d948bde..666a2b5c0c5c0 100644
--- a/drivers/gpu/drm/bridge/analogix/anx7625.c
+++ b/drivers/gpu/drm/bridge/analogix/anx7625.c
@@ -873,11 +873,11 @@ static int anx7625_hdcp_enable(struct anx7625_data *ctx)
 	}
 
 	/* Read downstream capability */
-	ret = anx7625_aux_trans(ctx, DP_AUX_NATIVE_READ, 0x68028, 1, &bcap);
+	ret = anx7625_aux_trans(ctx, DP_AUX_NATIVE_READ, DP_AUX_HDCP_BCAPS, 1, &bcap);
 	if (ret < 0)
 		return ret;
 
-	if (!(bcap & 0x01)) {
+	if (!(bcap & DP_BCAPS_HDCP_CAPABLE)) {
 		pr_warn("downstream not support HDCP 1.4, cap(%x).\n", bcap);
 		return 0;
 	}



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