diff options
| author | Christian Hewitt <christianshewitt@gmail.com> | 2024-01-09 23:07:04 +0000 |
|---|---|---|
| committer | Neil Armstrong <neil.armstrong@linaro.org> | 2024-03-29 17:12:28 +0100 |
| commit | bfbc68e4d8695497f858a45a142665e22a512ea3 (patch) | |
| tree | f4fa0e87fcb3d60df9638b04a6f42f709d93af5e /drivers/gpu/drm/meson/meson_vclk.c | |
| parent | 0716e348d13fea9f5798e9cf8b5c08f6d593cff9 (diff) | |
drm/meson: vclk: fix calculation of 59.94 fractional rates
Playing 4K media with 59.94 fractional rate (typically VP9) causes the screen to lose
sync with the following error reported in the system log:
[ 89.610280] Fatal Error, invalid HDMI vclk freq 593406
Modetest shows the following:
3840x2160 59.94 3840 4016 4104 4400 2160 2168 2178 2250 593407 flags: xxxx, xxxx,
drm calculated value -------------------------------------^
Change the fractional rate calculation to stop DIV_ROUND_CLOSEST rounding down which
results in vclk freq failing to match correctly.
Fixes: e5fab2ec9ca4 ("drm/meson: vclk: add support for YUV420 setup")
Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20240109230704.4120561-1-christianshewitt@gmail.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240109230704.4120561-1-christianshewitt@gmail.com
Diffstat (limited to 'drivers/gpu/drm/meson/meson_vclk.c')
| -rw-r--r-- | drivers/gpu/drm/meson/meson_vclk.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/gpu/drm/meson/meson_vclk.c b/drivers/gpu/drm/meson/meson_vclk.c index 2a82119eb58e..2a942dc6a6dc 100644 --- a/drivers/gpu/drm/meson/meson_vclk.c +++ b/drivers/gpu/drm/meson/meson_vclk.c @@ -790,13 +790,13 @@ meson_vclk_vic_supported_freq(struct meson_drm *priv, unsigned int phy_freq, FREQ_1000_1001(params[i].pixel_freq)); DRM_DEBUG_DRIVER("i = %d phy_freq = %d alt = %d\n", i, params[i].phy_freq, - FREQ_1000_1001(params[i].phy_freq/10)*10); + FREQ_1000_1001(params[i].phy_freq/1000)*1000); /* Match strict frequency */ if (phy_freq == params[i].phy_freq && vclk_freq == params[i].vclk_freq) return MODE_OK; /* Match 1000/1001 variant */ - if (phy_freq == (FREQ_1000_1001(params[i].phy_freq/10)*10) && + if (phy_freq == (FREQ_1000_1001(params[i].phy_freq/1000)*1000) && vclk_freq == FREQ_1000_1001(params[i].vclk_freq)) return MODE_OK; } @@ -1070,7 +1070,7 @@ void meson_vclk_setup(struct meson_drm *priv, unsigned int target, for (freq = 0 ; params[freq].pixel_freq ; ++freq) { if ((phy_freq == params[freq].phy_freq || - phy_freq == FREQ_1000_1001(params[freq].phy_freq/10)*10) && + phy_freq == FREQ_1000_1001(params[freq].phy_freq/1000)*1000) && (vclk_freq == params[freq].vclk_freq || vclk_freq == FREQ_1000_1001(params[freq].vclk_freq))) { if (vclk_freq != params[freq].vclk_freq) |