linux-kernel - [PATCH AUTOSEL 6.6 12/17] drm/bridge: it6505: Change definition MAX_HDCP_DOWN_STREAM

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Message-Id: <20250126145612.937679-12-sashal@kernel.org>
Date: Sun, 26 Jan 2025 09:56:07 -0500
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Hermes Wu <hermes.wu@....com.tw>,
	Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
	Sasha Levin <sashal@...nel.org>,
	andrzej.hajda@...el.com,
	neil.armstrong@...aro.org,
	rfoss@...nel.org,
	maarten.lankhorst@...ux.intel.com,
	mripard@...nel.org,
	tzimmermann@...e.de,
	airlied@...il.com,
	simona@...ll.ch,
	dri-devel@...ts.freedesktop.org
Subject: [PATCH AUTOSEL 6.6 12/17] drm/bridge: it6505: Change definition MAX_HDCP_DOWN_STREAM_COUNT

From: Hermes Wu <hermes.wu@....com.tw>

[ Upstream commit 85597bc0d70c287ba41f17d14d3d857a38a3d727 ]

A HDCP source device shall support max downstream to 127 devices.
Change definition MAX_HDCP_DOWN_STREAM_COUNT to 127

KSVs shall save for DRM blocked devices check.
This results in struct it6505 growth by ~0.5 KiB.

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Signed-off-by: Hermes Wu <hermes.wu@....com.tw>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20241230-v7-upstream-v7-4-e0fdd4844703@ite.corp-partner.google.com
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/gpu/drm/bridge/ite-it6505.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/bridge/ite-it6505.c b/drivers/gpu/drm/bridge/ite-it6505.c
index 26d3b9b843267..b7f70c8d14473 100644
--- a/drivers/gpu/drm/bridge/ite-it6505.c
+++ b/drivers/gpu/drm/bridge/ite-it6505.c
@@ -295,7 +295,7 @@
 #define MAX_LANE_COUNT 4
 #define MAX_LINK_RATE HBR
 #define AUTO_TRAIN_RETRY 3
-#define MAX_HDCP_DOWN_STREAM_COUNT 10
+#define MAX_HDCP_DOWN_STREAM_COUNT 127
 #define MAX_CR_LEVEL 0x03
 #define MAX_EQ_LEVEL 0x03
 #define AUX_WAIT_TIMEOUT_MS 15
-- 
2.39.5