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authorChristian Hewitt <christianshewitt@gmail.com>2025-04-21 22:12:59 +0200
committerNeil Armstrong <neil.armstrong@linaro.org>2025-04-22 09:23:57 +0200
commitf37bb5486ea536c1d61df89feeaeff3f84f0b560 (patch)
treec0d7da72987108c813c7304ad0d2b2c566517e97
parent76c332d119f9048c6e16b52359f401510f18b2ff (diff)
Revert "drm/meson: vclk: fix calculation of 59.94 fractional rates"
This reverts commit bfbc68e. The patch does permit the offending YUV420 @ 59.94 phy_freq and vclk_freq mode to match in calculations. It also results in all fractional rates being unavailable for use. This was unintended and requires the patch to be reverted. Fixes: bfbc68e4d869 ("drm/meson: vclk: fix calculation of 59.94 fractional rates") Cc: stable@vger.kernel.org Signed-off-by: Christian Hewitt <christianshewitt@gmail.com> Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://lore.kernel.org/r/20250421201300.778955-2-martin.blumenstingl@googlemail.com Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://lore.kernel.org/r/20250421201300.778955-2-martin.blumenstingl@googlemail.com
-rw-r--r--drivers/gpu/drm/meson/meson_vclk.c6
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 2a942dc6a6dc..2a82119eb58e 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/1000)*1000);
+ FREQ_1000_1001(params[i].phy_freq/10)*10);
/* 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/1000)*1000) &&
+ if (phy_freq == (FREQ_1000_1001(params[i].phy_freq/10)*10) &&
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/1000)*1000) &&
+ phy_freq == FREQ_1000_1001(params[freq].phy_freq/10)*10) &&
(vclk_freq == params[freq].vclk_freq ||
vclk_freq == FREQ_1000_1001(params[freq].vclk_freq))) {
if (vclk_freq != params[freq].vclk_freq)