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| author | Álvaro Fernández Rojas <noltari@gmail.com> | 2020-03-16 20:41:03 +0100 |
|---|---|---|
| committer | Álvaro Fernández Rojas <noltari@gmail.com> | 2020-03-16 21:24:23 +0100 |
| commit | 0f6d04457a64f2393b05f662dc8d381ea1963c66 (patch) | |
| tree | 2d6a3c82d5e6d02b030b16df66da8bf9209b02ec /target/linux/bcm27xx/patches-5.4/950-0263-drm-vc4-Limit-fkms-to-modes-85Hz.patch | |
| parent | d890f85e59617228b1e76e8cf45a9309904d9124 (diff) | |
| download | upstream-0f6d04457a64f2393b05f662dc8d381ea1963c66.tar.gz upstream-0f6d04457a64f2393b05f662dc8d381ea1963c66.tar.bz2 upstream-0f6d04457a64f2393b05f662dc8d381ea1963c66.zip | |
bcm27xx: sync 5.4 patches with RPi Foundation
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0263-drm-vc4-Limit-fkms-to-modes-85Hz.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.4/950-0263-drm-vc4-Limit-fkms-to-modes-85Hz.patch | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0263-drm-vc4-Limit-fkms-to-modes-85Hz.patch b/target/linux/bcm27xx/patches-5.4/950-0263-drm-vc4-Limit-fkms-to-modes-85Hz.patch new file mode 100644 index 0000000000..128ac5d54b --- /dev/null +++ b/target/linux/bcm27xx/patches-5.4/950-0263-drm-vc4-Limit-fkms-to-modes-85Hz.patch @@ -0,0 +1,26 @@ +From 9f9d67a11cfd6318d2bd1321090c0950242cfa25 Mon Sep 17 00:00:00 2001 +From: Dave Stevenson <dave.stevenson@raspberrypi.org> +Date: Tue, 18 Jun 2019 21:37:45 +0100 +Subject: [PATCH] drm/vc4: Limit fkms to modes <= 85Hz + +Selecting 1080p100 and 120 has very limited gain, but don't want +to block VGA85 and similar. + +Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org> +--- + drivers/gpu/drm/vc4/vc4_firmware_kms.c | 4 ++++ + 1 file changed, 4 insertions(+) + +--- a/drivers/gpu/drm/vc4/vc4_firmware_kms.c ++++ b/drivers/gpu/drm/vc4/vc4_firmware_kms.c +@@ -823,6 +823,10 @@ vc4_crtc_mode_valid(struct drm_crtc *crt + return MODE_NO_DBLESCAN; + } + ++ /* Disable refresh rates > 85Hz as limited gain from them */ ++ if (drm_mode_vrefresh(mode) > 85) ++ return MODE_BAD_VVALUE; ++ + /* Limit the pixel clock based on the HDMI clock limits from the + * firmware + */ |