diff options
| author | Maxime Ripard <mripard@kernel.org> | 2024-05-27 15:57:58 +0200 |
|---|---|---|
| committer | Maxime Ripard <mripard@kernel.org> | 2024-05-28 10:12:25 +0200 |
| commit | 40167bcbd19c241fc30a912fa8a8276b9ed1a12e (patch) | |
| tree | 1e7aef0eb6d2529fa8cc7977f78977a4b2559a93 /include/drm | |
| parent | 08eeaa134e1d801e2d935c16b9200535bd580b8a (diff) | |
drm/display: hdmi: Add HDMI compute clock helper
A lot of HDMI drivers have some variation of the formula to calculate
the TMDS character rate from a mode, but few of them actually take all
parameters into account.
Let's create a helper to provide that rate taking all parameters into
account.
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-v15-9-c5af16c3aae2@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Diffstat (limited to 'include/drm')
| -rw-r--r-- | include/drm/display/drm_hdmi_helper.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/drm/display/drm_hdmi_helper.h b/include/drm/display/drm_hdmi_helper.h index 76d234826e22..57e3b18c15ec 100644 --- a/include/drm/display/drm_hdmi_helper.h +++ b/include/drm/display/drm_hdmi_helper.h @@ -24,4 +24,8 @@ drm_hdmi_infoframe_set_hdr_metadata(struct hdmi_drm_infoframe *frame, void drm_hdmi_avi_infoframe_content_type(struct hdmi_avi_infoframe *frame, const struct drm_connector_state *conn_state); +unsigned long long +drm_hdmi_compute_mode_clock(const struct drm_display_mode *mode, + unsigned int bpc, enum hdmi_colorspace fmt); + #endif |