linux-kernel - [PATCH v2 3/8] drm/i2c: tda998x: fix npix/nline programming

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Wed, 14 Aug 2013 21:43:28 +0200
From:	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>
To:	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>
Cc:	Russell King <rmk+kernel@....linux.org.uk>,
	David Airlie <airlied@...ux.ie>,
	Darren Etheridge <detheridge@...com>,
	Rob Clark <robdclark@...il.com>,
	Daniel Vetter <daniel.vetter@...ll.ch>,
	dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 3/8] drm/i2c: tda998x: fix npix/nline programming

From: Russell King <rmk+kernel@....linux.org.uk>

The npix/nline registers are supposed to be programmed with the total
number of pixels/lines, not the displayed pixels/lines, and not minus
one either.

Signed-off-by: Russell King <rmk+kernel@....linux.org.uk>
Tested-by: Darren Etheridge <detheridge@...com>
Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>
---
Cc: David Airlie <airlied@...ux.ie>
Cc: Darren Etheridge <detheridge@...com>
Cc: Rob Clark <robdclark@...il.com>
Cc: Russell King <rmk+kernel@....linux.org.uk>
Cc: Daniel Vetter <daniel.vetter@...ll.ch>
Cc: dri-devel@...ts.freedesktop.org
Cc: linux-kernel@...r.kernel.org
---
 drivers/gpu/drm/i2c/tda998x_drv.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i2c/tda998x_drv.c b/drivers/gpu/drm/i2c/tda998x_drv.c
index cb9b13a..a701411 100644
--- a/drivers/gpu/drm/i2c/tda998x_drv.c
+++ b/drivers/gpu/drm/i2c/tda998x_drv.c
@@ -587,8 +587,8 @@ tda998x_encoder_mode_set(struct drm_encoder *encoder,
 		reg_set(encoder, REG_VIP_CNTRL_3, VIP_CNTRL_3_H_TGL);
 
 	reg_write(encoder, REG_VIDFORMAT, 0x00);
-	reg_write16(encoder, REG_NPIX_MSB, mode->hdisplay - 1);
-	reg_write16(encoder, REG_NLINE_MSB, mode->vdisplay - 1);
+	reg_write16(encoder, REG_NPIX_MSB, mode->htotal);
+	reg_write16(encoder, REG_NLINE_MSB, mode->vtotal);
 	reg_write16(encoder, REG_VS_LINE_STRT_1_MSB, line_start);
 	reg_write16(encoder, REG_VS_LINE_END_1_MSB, line_end);
 	reg_write16(encoder, REG_VS_PIX_STRT_1_MSB, hs_start);
-- 
1.7.10.4

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/