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author | Álvaro Fernández Rojas <noltari@gmail.com> | 2021-02-18 18:04:33 +0100 |
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committer | Álvaro Fernández Rojas <noltari@gmail.com> | 2021-02-19 07:17:21 +0100 |
commit | 62b7f5931c54e96fca56dd8761b0e466d355c881 (patch) | |
tree | 1258b392752379833a075df006c2f6d7ac4be51d /target/linux/bcm27xx/patches-5.4/950-0621-vc4_hdmi_phy-Fix-offset-calculation.patch | |
parent | 76d1168d0d4b9d76e2ad78c0fc6b255561deb284 (diff) | |
download | upstream-62b7f5931c54e96fca56dd8761b0e466d355c881.tar.gz upstream-62b7f5931c54e96fca56dd8761b0e466d355c881.tar.bz2 upstream-62b7f5931c54e96fca56dd8761b0e466d355c881.zip |
bcm27xx: import latest patches from the RPi foundation
bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 3B v1.2 and RPi 4B v1.1 4G
bcm2710: boot tested on RPi 3B v1.2
bcm2711: boot tested on RPi 4B v1.1 4G
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
(cherry-picked from commit f07e572f64)
Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0621-vc4_hdmi_phy-Fix-offset-calculation.patch')
-rw-r--r-- | target/linux/bcm27xx/patches-5.4/950-0621-vc4_hdmi_phy-Fix-offset-calculation.patch | 30 |
1 files changed, 0 insertions, 30 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0621-vc4_hdmi_phy-Fix-offset-calculation.patch b/target/linux/bcm27xx/patches-5.4/950-0621-vc4_hdmi_phy-Fix-offset-calculation.patch deleted file mode 100644 index 83d8d25e29..0000000000 --- a/target/linux/bcm27xx/patches-5.4/950-0621-vc4_hdmi_phy-Fix-offset-calculation.patch +++ /dev/null @@ -1,30 +0,0 @@ -From 9da2d153eb010d3e92083c322e87de9ae066d93e Mon Sep 17 00:00:00 2001 -From: popcornmix <popcornmix@gmail.com> -Date: Thu, 2 Apr 2020 16:46:31 +0100 -Subject: [PATCH] vc4_hdmi_phy: Fix offset calculation - -The original firmware code worked with float and did - offset = ((vco_freq / fref * 2) * (1 << 22)); - offset >>= 2; - -In this code it's all integer so doing the integer divide before the shift loses lots of precision - -This fixes the issue of 1080p59.94 mode having 59.64 fps - -Signed-off-by: popcornmix <popcornmix@gmail.com> ---- - drivers/gpu/drm/vc4/vc4_hdmi_phy.c | 2 +- - 1 file changed, 1 insertion(+), 1 deletion(-) - ---- a/drivers/gpu/drm/vc4/vc4_hdmi_phy.c -+++ b/drivers/gpu/drm/vc4/vc4_hdmi_phy.c -@@ -192,8 +192,8 @@ static u32 phy_get_rm_offset(unsigned lo - - /* RM offset is stored as 9.22 format */ - offset = vco_freq * 2; -- do_div(offset, fref); - offset = offset << 22; -+ do_div(offset, fref); - offset >>= 2; - - return offset; |