diff options
| author | Maxime Ripard <maxime@cerno.tech> | 2022-02-22 19:40:37 +0300 |
|---|---|---|
| committer | Maxime Ripard <maxime@cerno.tech> | 2022-03-24 15:43:59 +0300 |
| commit | ccbf364f329cd43c9b148a2613881a8890f97237 (patch) | |
| tree | 1b4e1530d533dcf6508579c15c922dca88509897 /drivers/gpu/drm/vc4 | |
| parent | 6135ee07702781cd8206bcb1c202c4630d6e3c9c (diff) | |
| download | linux-ccbf364f329cd43c9b148a2613881a8890f97237.tar.xz | |
drm/vc4: hdmi: Move clock validation to its own function
Our code is doing the same clock rate validation in multiple instances.
Let's create a helper to share the rate validation.
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220222164042.403112-3-maxime@cerno.tech
Diffstat (limited to 'drivers/gpu/drm/vc4')
| -rw-r--r-- | drivers/gpu/drm/vc4/vc4_hdmi.c | 26 |
1 files changed, 15 insertions, 11 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c index c70e5059b077..d4cebb524578 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.c +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c @@ -1245,6 +1245,19 @@ static void vc4_hdmi_encoder_atomic_mode_set(struct drm_encoder *encoder, mutex_unlock(&vc4_hdmi->mutex); } +static enum drm_mode_status +vc4_hdmi_encoder_clock_valid(const struct vc4_hdmi *vc4_hdmi, + unsigned long long clock) +{ + if (clock > vc4_hdmi->variant->max_pixel_clock) + return MODE_CLOCK_HIGH; + + if (vc4_hdmi->disable_4kp60 && clock > HDMI_14_MAX_TMDS_CLK) + return MODE_CLOCK_HIGH; + + return MODE_OK; +} + #define WIFI_2_4GHz_CH1_MIN_FREQ 2400000000ULL #define WIFI_2_4GHz_CH1_MAX_FREQ 2422000000ULL @@ -1288,10 +1301,7 @@ static int vc4_hdmi_encoder_atomic_check(struct drm_encoder *encoder, if (mode->flags & DRM_MODE_FLAG_DBLCLK) tmds_char_rate = tmds_char_rate * 2; - if (tmds_char_rate > vc4_hdmi->variant->max_pixel_clock) - return -EINVAL; - - if (vc4_hdmi->disable_4kp60 && (tmds_char_rate > HDMI_14_MAX_TMDS_CLK)) + if (vc4_hdmi_encoder_clock_valid(vc4_hdmi, tmds_char_rate) != MODE_OK) return -EINVAL; vc4_state->tmds_char_rate = tmds_char_rate; @@ -1310,13 +1320,7 @@ vc4_hdmi_encoder_mode_valid(struct drm_encoder *encoder, (mode->hsync_end % 2) || (mode->htotal % 2))) return MODE_H_ILLEGAL; - if ((mode->clock * 1000) > vc4_hdmi->variant->max_pixel_clock) - return MODE_CLOCK_HIGH; - - if (vc4_hdmi->disable_4kp60 && vc4_hdmi_mode_needs_scrambling(mode)) - return MODE_CLOCK_HIGH; - - return MODE_OK; + return vc4_hdmi_encoder_clock_valid(vc4_hdmi, mode->clock * 1000); } static const struct drm_encoder_helper_funcs vc4_hdmi_encoder_helper_funcs = { |