diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.15/950-0477-drm-vc4-Correct-DSI-divider-calculations.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.15/950-0477-drm-vc4-Correct-DSI-divider-calculations.patch | 35 |
1 files changed, 0 insertions, 35 deletions
diff --git a/target/linux/bcm27xx/patches-5.15/950-0477-drm-vc4-Correct-DSI-divider-calculations.patch b/target/linux/bcm27xx/patches-5.15/950-0477-drm-vc4-Correct-DSI-divider-calculations.patch deleted file mode 100644 index af258f20d1..0000000000 --- a/target/linux/bcm27xx/patches-5.15/950-0477-drm-vc4-Correct-DSI-divider-calculations.patch +++ /dev/null @@ -1,35 +0,0 @@ -From 06c340cc854b1c8c275968c2830fbe8a5c3b0e4e Mon Sep 17 00:00:00 2001 -From: Dave Stevenson <dave.stevenson@raspberrypi.com> -Date: Fri, 18 Jun 2021 21:52:28 +0100 -Subject: [PATCH] drm/vc4: Correct DSI divider calculations - -The divider calculations tried to find the divider -just faster than the clock requested. However if -it required a divider of 7 then the for loop -aborted without handling the "error" case, and could -end up with a clock lower than requested. - -Correct the loop so that we always have a clock greater -than requested. - -Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com> ---- - drivers/gpu/drm/vc4/vc4_dsi.c | 6 ++---- - 1 file changed, 2 insertions(+), 4 deletions(-) - ---- a/drivers/gpu/drm/vc4/vc4_dsi.c -+++ b/drivers/gpu/drm/vc4/vc4_dsi.c -@@ -850,11 +850,9 @@ static bool vc4_dsi_encoder_mode_fixup(s - /* Find what divider gets us a faster clock than the requested - * pixel clock. - */ -- for (divider = 1; divider < 8; divider++) { -- if (parent_rate / divider < pll_clock) { -- divider--; -+ for (divider = 1; divider < 7; divider++) { -+ if (parent_rate / (divider + 1) < pll_clock) - break; -- } - } - - /* Now that we've picked a PLL divider, calculate back to its |