linux-kernel - [PATCH] drm/rockchip: inno-hdmi: Fix infoframe upload

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Message-ID: <20240805110855.274140-2-knaerzche@gmail.com>
Date: Mon,  5 Aug 2024 13:08:56 +0200
From: Alex Bee <knaerzche@...il.com>
To: Sandy Huang <hjc@...k-chips.com>,
	Heiko Stübner <heiko@...ech.de>,
	Andy Yan <andy.yan@...k-chips.com>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>
Cc: David Airlie <airlied@...il.com>,
	Daniel Vetter <daniel@...ll.ch>,
	dri-devel@...ts.freedesktop.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-rockchip@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	Alex Bee <knaerzche@...il.com>
Subject: [PATCH] drm/rockchip: inno-hdmi: Fix infoframe upload

HDMI analyser shows that the AVI infoframe is no being longer send.

The switch to the HDMI connector api should have used the frame content
which is now given in the buffer parameter, but instead still uses the
(now) empty and superfluous packed_frame variable.

Fix it.

Fixes: 65548c8ff0ab ("drm/rockchip: inno_hdmi: Switch to HDMI connector")
Signed-off-by: Alex Bee <knaerzche@...il.com>
---
 drivers/gpu/drm/rockchip/inno_hdmi.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/rockchip/inno_hdmi.c b/drivers/gpu/drm/rockchip/inno_hdmi.c
index 2241e53a2946..dec6913cec5b 100644
--- a/drivers/gpu/drm/rockchip/inno_hdmi.c
+++ b/drivers/gpu/drm/rockchip/inno_hdmi.c
@@ -279,7 +279,6 @@ static int inno_hdmi_upload_frame(struct drm_connector *connector,
 				  const u8 *buffer, size_t len)
 {
 	struct inno_hdmi *hdmi = connector_to_inno_hdmi(connector);
-	u8 packed_frame[HDMI_MAXIMUM_INFO_FRAME_SIZE];
 	ssize_t i;
 
 	if (type != HDMI_INFOFRAME_TYPE_AVI) {
@@ -291,8 +290,7 @@ static int inno_hdmi_upload_frame(struct drm_connector *connector,
 	inno_hdmi_disable_frame(connector, type);
 
 	for (i = 0; i < len; i++)
-		hdmi_writeb(hdmi, HDMI_CONTROL_PACKET_ADDR + i,
-			    packed_frame[i]);
+		hdmi_writeb(hdmi, HDMI_CONTROL_PACKET_ADDR + i, buffer[i]);
 
 	return 0;
 }
-- 
2.45.2