[PATCH RESEND] drm: bridge/dw-hdmi: Fix colorspace and scan information registers values

Jose Abreu Jose.Abreu at synopsys.com
Mon Aug 29 09:30:51 UTC 2016


Colorspace and scan information values were being written in wrong
offsets. This patch corrects this and writes the values at the
offsets specified in the databook.

Signed-off-by: Jose Abreu <joabreu at synopsys.com>
Acked-by: Russell King <rmk+kernel at armlinux.org.uk>
Cc: Carlos Palminha <palminha at synopsys.com>
Cc: Archit Taneja <architt at codeaurora.org>
Cc: David Airlie <airlied at linux.ie>
Cc: Russell King <rmk+kernel at arm.linux.org.uk>
Cc: Daniel Vetter <daniel.vetter at ffwll.ch>
Cc: dri-devel at lists.freedesktop.org
Cc: linux-kernel at vger.kernel.org
---
 drivers/gpu/drm/bridge/dw-hdmi.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/bridge/dw-hdmi.c b/drivers/gpu/drm/bridge/dw-hdmi.c
index 77ab473..cdf39aa 100644
--- a/drivers/gpu/drm/bridge/dw-hdmi.c
+++ b/drivers/gpu/drm/bridge/dw-hdmi.c
@@ -940,10 +940,11 @@ static void hdmi_config_AVI(struct dw_hdmi *hdmi, struct drm_display_mode *mode)
 	 */
 
 	/*
-	 * AVI data byte 1 differences: Colorspace in bits 4,5 rather than 5,6,
-	 * active aspect present in bit 6 rather than 4.
+	 * AVI data byte 1 differences: Colorspace in bits 0,1 rather than 5,6,
+	 * scan info in bits 4,5 rather than 0,1 and active aspect present in
+	 * bit 6 rather than 4.
 	 */
-	val = (frame.colorspace & 3) << 4 | (frame.scan_mode & 0x3);
+	val = (frame.scan_mode & 3) << 4 | (frame.colorspace & 3);
 	if (frame.active_aspect & 15)
 		val |= HDMI_FC_AVICONF0_ACTIVE_FMT_INFO_PRESENT;
 	if (frame.top_bar || frame.bottom_bar)
-- 
2.1.4



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