diff mbox series

[1/4] drm/vc4: hdmi: Replace hardcoded value by define

Message ID 20230126-rpi-display-fw-clk-cleanup-v1-1-d646ff6fb842@cerno.tech (mailing list archive)
State New, archived
Headers show
Series drm/vc4: hdmi: Firmware clocks cleanup | expand

Commit Message

Maxime Ripard Jan. 26, 2023, 5:05 p.m. UTC
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.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
---
 drivers/gpu/drm/vc4/vc4_hdmi.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

Comments

Javier Martinez Canillas Feb. 13, 2023, 12:43 p.m. UTC | #1
On 1/26/23 18:05, Maxime Ripard wrote:
> 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.
> 
> Signed-off-by: Maxime Ripard <maxime@cerno.tech>
> ---

Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
diff mbox series

Patch

diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c
index 14628864487a..98fa306dbd24 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
@@ -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);