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| author | Maxime Ripard <mripard@kernel.org> | 2024-05-27 15:58:00 +0200 |
|---|---|---|
| committer | Maxime Ripard <mripard@kernel.org> | 2024-05-28 10:12:26 +0200 |
| commit | f035f4097f1e0a35a457b72427bb0c06ca0c81c4 (patch) | |
| tree | 35db77a98a22b6080b608be1646af32b4e269828 /drivers/gpu/drm/drm_atomic.c | |
| parent | abb6f74973e20956d42e8227dde6fb4e92502c14 (diff) | |
| download | linux-f035f4097f1e0a35a457b72427bb0c06ca0c81c4.tar.gz linux-f035f4097f1e0a35a457b72427bb0c06ca0c81c4.tar.bz2 linux-f035f4097f1e0a35a457b72427bb0c06ca0c81c4.zip | |
drm/connector: hdmi: Calculate TMDS character rate
Most HDMI drivers have some code to calculate the TMDS character rate,
usually to adjust an internal clock to match what the mode requires.
Since the TMDS character rates mostly depends on the resolution, whether
we need to repeat pixels or not, the bpc count and the format, we can
now derive it from the HDMI connector state that stores all those infos
and remove the duplication from drivers.
Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240527-kms-hdmi-connector-state-v15-11-c5af16c3aae2@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Diffstat (limited to 'drivers/gpu/drm/drm_atomic.c')
| -rw-r--r-- | drivers/gpu/drm/drm_atomic.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c index 8730137baa86..26f9e525c0a0 100644 --- a/drivers/gpu/drm/drm_atomic.c +++ b/drivers/gpu/drm/drm_atomic.c @@ -1148,6 +1148,7 @@ static void drm_atomic_connector_print_state(struct drm_printer *p, drm_printf(p, "\toutput_bpc=%u\n", state->hdmi.output_bpc); drm_printf(p, "\toutput_format=%s\n", drm_hdmi_connector_get_output_format_name(state->hdmi.output_format)); + drm_printf(p, "\ttmds_char_rate=%llu\n", state->hdmi.tmds_char_rate); } if (connector->connector_type == DRM_MODE_CONNECTOR_WRITEBACK) |