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qemu/ati-vga-try-vga-ddc-first.patch
Bruce Rogers 64435eabdc Accepting request 730437 from Virtualization:Staging
Update to v4.1.0. Also includes other major packaging changes as follows:
There is a new package maintenance workflow - see README.PACKAGING for details.
The sibling packages qemu-linux-user and qemu-testsuite are now created with the Build Service's MultiBuild feature. This also necessitates combining the qemu-linux-user changelog content back into qemu's. Luckily the delta there is quite small. Note that the qemu spec file is now that much busier, but added section markers should help reduce the confusion. Also qemu is being enabled for RISCV host compatibility, so some changes are related to that as well.

OBS-URL: https://build.opensuse.org/request/show/730437
OBS-URL: https://build.opensuse.org/package/show/Virtualization/qemu?expand=0&rev=487
2019-09-12 15:54:03 +00:00

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From: Gerd Hoffmann <kraxel@redhat.com>
Date: Mon, 24 Jun 2019 12:17:28 +0200
Subject: ati-vga: try vga ddc first
Git-commit: af573dceef7b9a45d13192ec5abf29b73c78540e
Try vga ddc bus before dvi ddc bus.
Return early in case we got valid data.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Bruce Rogers <brogers@suse.com>
---
vgasrc/atiext.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/roms/seabios/vgasrc/atiext.c b/roms/seabios/vgasrc/atiext.c
index 901e82d013837f54f4db292628d1..71dfa859a22dc569ed2fd1312c6b 100644
--- a/roms/seabios/vgasrc/atiext.c
+++ b/roms/seabios/vgasrc/atiext.c
@@ -299,6 +299,15 @@ static void ati_i2c_edid_radeon(void)
SET_VGA(ati_i2c_bit_sda_out, 16);
SET_VGA(ati_i2c_bit_sda_in, 8);
+ dprintf(1, "ati: reading edid blob (radeon vga) ... \n");
+ SET_VGA(ati_i2c_reg, GPIO_VGA_DDC);
+ ati_i2c_edid();
+ valid = (GET_GLOBAL(VBE_edid[0]) == 0x00 &&
+ GET_GLOBAL(VBE_edid[1]) == 0xff);
+ dprintf(1, "ati: ... %s\n", valid ? "good" : "invalid");
+ if (valid)
+ return;
+
dprintf(1, "ati: reading edid blob (radeon dvi) ... \n");
SET_VGA(ati_i2c_reg, GPIO_DVI_DDC);
ati_i2c_edid();