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drm/vc4: hdmi: Replace hardcoded value by define

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The 120MHz value hardcoded in the call to max_t to compute the HSM rate
is defined in the driver as HSM_MIN_CLOCK_FREQ, let's switch to it so
that it's more readable.

Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://lore.kernel.org/r/20230126-rpi-display-fw-clk-cleanup-v1-1-d646ff6fb842@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
This commit is contained in:
Maxime Ripard 2023-01-26 18:05:46 +01:00
parent f56e0071a6
commit 89a173dec1
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1 changed files with 3 additions and 1 deletions
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4
drivers/gpu/drm/vc4/vc4_hdmi.c
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@ -1482,7 +1482,9 @@ static void vc4_hdmi_encoder_pre_crtc_configure(struct drm_encoder *encoder,
* Additionally, the AXI clock needs to be at least 25% of
* pixel clock, but HSM ends up being the limiting factor.
*/
hsm_rate = max_t(unsigned long, 120000000, (tmds_char_rate / 100) * 101);
hsm_rate = max_t(unsigned long,
HSM_MIN_CLOCK_FREQ,
(tmds_char_rate / 100) * 101);
ret = clk_set_min_rate(vc4_hdmi->hsm_clock, hsm_rate);
if (ret) {
DRM_ERROR("Failed to set HSM clock rate: %d\n", ret);