[Openchrome-devel] drm-openchrome: drivers/gpu/drm

Huang Ran huangran at kemper.freedesktop.org
Wed Apr 20 07:07:45 UTC 2016


 drivers/gpu/drm/via/via_crtc.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

New commits:
commit 72610a391a7d9b72011a41c190caaa51cb471e7d
Author: HuangRan <huangranbj at 126.com>
Date:   Wed Apr 20 15:06:19 2016 +0800

    Fix VX900 HDMI port no display issue
    
    Remove the write of bit6 for VGA/SVGA CRT Controller Register 0xFD
    (IGA1 Scaling Up and Timing Control). Bit6 of CRTC 0xFD is RO bit
    which can't be written. Verfied on VX900 board for HDMI port.
    
    Signed-off-by: Hu, Yi <huyi at iscas.ac.cn>
    Signed-off-by: Huang, Ran <huangranbj at 126.com>

diff --git a/drivers/gpu/drm/via/via_crtc.c b/drivers/gpu/drm/via/via_crtc.c
index fa29270..a50e654 100644
--- a/drivers/gpu/drm/via/via_crtc.c
+++ b/drivers/gpu/drm/via/via_crtc.c
@@ -468,7 +468,7 @@ void via_load_crtc_pixel_timing(struct drm_crtc *crtc, struct drm_display_mode *
 		svga_wcrt_mask(VGABASE, 0x32, 0x00, BIT(2));
 
 	}
-	svga_wcrt_mask(VGABASE, 0xFD, BIT(5) | BIT(6), BIT(5) | BIT(6));
+	svga_wcrt_mask(VGABASE, 0xFD, BIT(5), BIT(5));
 }
 
 /* Load CRTC timing registers */
@@ -484,7 +484,7 @@ void via_load_crtc_timing(struct via_crtc *iga, struct drm_display_mode *mode)
 			svga_wcrt_mask(VGABASE, 0x45, 0x00, BIT(0));
 
 			/* Disable IGA1 pixel timing */
-			svga_wcrt_mask(VGABASE, 0xFD, 0x00, BIT(6) | BIT(5));
+			svga_wcrt_mask(VGABASE, 0xFD, 0x00, BIT(5));
 		}
 
 		reg_value = IGA1_HOR_TOTAL_FORMULA(mode->crtc_htotal);


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