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;
}
