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drm/sun4i: hdmi: Use the common TMDS char rate constant

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Replace the 165000000 magic number with the shared constant defined
in the <linux/hdmi.h> header.

The old comment referenced "HDMI <= 1.2" but 165 MHz is actually
the maximum TMDS character rate defined by the HDMI 1.0 spec.

Suggested-by: Maxime Ripard <mripard@kernel.org>
Reviewed-by: Chen-Yu Tsai <wens@kernel.org>
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Link: https://patch.msgid.link/20260520144424.1633354-7-javierm@redhat.com
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
This commit is contained in:
Javier Martinez Canillas 2026-05-20 16:43:42 +02:00
parent b08582317e
commit 3148266e5a
No known key found for this signature in database
GPG Key ID: C751E590D63F3D69
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c
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@ -189,8 +189,8 @@ sun4i_hdmi_connector_clock_valid(const struct drm_connector *connector,
if (mode->flags & DRM_MODE_FLAG_DBLCLK)
return MODE_BAD;
/* 165 MHz is the typical max pixelclock frequency for HDMI <= 1.2 */
if (clock > 165000000)
/* HDMI 1.0 max TMDS character rate */
if (clock > HDMI_1_0_TMDS_CHAR_RATE_MAX_HZ)
return MODE_CLOCK_HIGH;
rounded_rate = clk_round_rate(hdmi->tmds_clk, clock);