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authorDaniel Thompson <daniel.thompson@linaro.org>2014-05-23 19:01:43 +0400
committerDave Airlie <airlied@redhat.com>2014-05-26 06:53:40 +0400
commit4cbe1bfa27dcc8e757c723f27e5a8e8b5fc32117 (patch)
tree5a31eb5614a8f5562031f4be00de30e59520e97c /drivers/gpu/drm/drm_edid_load.c
parent9a6594fc5241ad96cff727a134f336b1f1eaa0f7 (diff)
downloadlinux-4cbe1bfa27dcc8e757c723f27e5a8e8b5fc32117.tar.xz
drm: Add 800x600 (SVGA) screen resolution to the built-in EDIDs
The 800x600 (SVGA) screen resolution was lacking in the set of built-in selectable EDID screen resolutions that can be used to repair misbehaving monitor firmware. This patch adds the related data set and expands the documentation. Note that the SVGA bit occupies a different byte to all the existing users of the established timing bits forcing a rework of the ESTABLISHED_TIMINGS_BITS macro. Tested new EDID on an aged (and misbehaving) industrial LCD panel; existing EDIDs still pass edid-decode's checksum checks. Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: David Airlie <airlied@linux.ie> Cc: Carsten Emde <C.Emde@osadl.org> Cc: linux-doc@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/drm_edid_load.c')
-rw-r--r--drivers/gpu/drm/drm_edid_load.c21
1 files changed, 20 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_edid_load.c b/drivers/gpu/drm/drm_edid_load.c
index 1b4c7a5442c5..6e09f615ebc9 100644
--- a/drivers/gpu/drm/drm_edid_load.c
+++ b/drivers/gpu/drm/drm_edid_load.c
@@ -31,8 +31,9 @@ module_param_string(edid_firmware, edid_firmware, sizeof(edid_firmware), 0644);
MODULE_PARM_DESC(edid_firmware, "Do not probe monitor, use specified EDID blob "
"from built-in data or /lib/firmware instead. ");
-#define GENERIC_EDIDS 5
+#define GENERIC_EDIDS 6
static const char *generic_edid_name[GENERIC_EDIDS] = {
+ "edid/800x600.bin",
"edid/1024x768.bin",
"edid/1280x1024.bin",
"edid/1600x1200.bin",
@@ -44,6 +45,24 @@ static const u8 generic_edid[GENERIC_EDIDS][128] = {
{
0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00,
0x31, 0xd8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x05, 0x16, 0x01, 0x03, 0x6d, 0x1b, 0x14, 0x78,
+ 0xea, 0x5e, 0xc0, 0xa4, 0x59, 0x4a, 0x98, 0x25,
+ 0x20, 0x50, 0x54, 0x01, 0x00, 0x00, 0x45, 0x40,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0xa0, 0x0f,
+ 0x20, 0x00, 0x31, 0x58, 0x1c, 0x20, 0x28, 0x80,
+ 0x14, 0x00, 0x15, 0xd0, 0x10, 0x00, 0x00, 0x1e,
+ 0x00, 0x00, 0x00, 0xff, 0x00, 0x4c, 0x69, 0x6e,
+ 0x75, 0x78, 0x20, 0x23, 0x30, 0x0a, 0x20, 0x20,
+ 0x20, 0x20, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x3b,
+ 0x3d, 0x24, 0x26, 0x05, 0x00, 0x0a, 0x20, 0x20,
+ 0x20, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0xfc,
+ 0x00, 0x4c, 0x69, 0x6e, 0x75, 0x78, 0x20, 0x53,
+ 0x56, 0x47, 0x41, 0x0a, 0x20, 0x20, 0x00, 0xc2,
+ },
+ {
+ 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00,
+ 0x31, 0xd8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x05, 0x16, 0x01, 0x03, 0x6d, 0x23, 0x1a, 0x78,
0xea, 0x5e, 0xc0, 0xa4, 0x59, 0x4a, 0x98, 0x25,
0x20, 0x50, 0x54, 0x00, 0x08, 0x00, 0x61, 0x40,