drm/vc4: hdmi: Rename pixel_rate variable

The pixel_rate field in the vc4_hdmi_connector_state struct actually
stores the TMDS character rate, let's rename it for consistency.

Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220222164042.403112-2-maxime@cerno.tech

diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c
index 335385f..c70e505 100644 (file)
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
@@ -343,7 +343,7 @@ vc4_hdmi_connector_duplicate_state(struct drm_connector *connector)
        if (!new_state)
                return NULL;
 
-       new_state->pixel_rate = vc4_state->pixel_rate;
+       new_state->tmds_char_rate = vc4_state->tmds_char_rate;
        __drm_atomic_helper_connector_duplicate_state(connector, &new_state->base);
 
        return &new_state->base;
@@ -1028,7 +1028,7 @@ static void vc4_hdmi_encoder_pre_crtc_configure(struct drm_encoder *encoder,
        struct vc4_hdmi_connector_state *vc4_conn_state =
                conn_state_to_vc4_hdmi_conn_state(conn_state);
        struct drm_display_mode *mode = &vc4_hdmi->saved_adjusted_mode;
-       unsigned long pixel_rate = vc4_conn_state->pixel_rate;
+       unsigned long tmds_char_rate = vc4_conn_state->tmds_char_rate;
        unsigned long bvb_rate, hsm_rate;
        unsigned long flags;
        int ret;
@@ -1051,7 +1051,7 @@ 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, (pixel_rate / 100) * 101);
+       hsm_rate = max_t(unsigned long, 120000000, (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);
@@ -1064,7 +1064,7 @@ static void vc4_hdmi_encoder_pre_crtc_configure(struct drm_encoder *encoder,
                goto out;
        }
 
-       ret = clk_set_rate(vc4_hdmi->pixel_clock, pixel_rate);
+       ret = clk_set_rate(vc4_hdmi->pixel_clock, tmds_char_rate);
        if (ret) {
                DRM_ERROR("Failed to set pixel clock rate: %d\n", ret);
                goto err_put_runtime_pm;
@@ -1079,9 +1079,9 @@ static void vc4_hdmi_encoder_pre_crtc_configure(struct drm_encoder *encoder,
 
        vc4_hdmi_cec_update_clk_div(vc4_hdmi);
 
-       if (pixel_rate > 297000000)
+       if (tmds_char_rate > 297000000)
                bvb_rate = 300000000;
-       else if (pixel_rate > 148500000)
+       else if (tmds_char_rate > 148500000)
                bvb_rate = 150000000;
        else
                bvb_rate = 75000000;
@@ -1255,8 +1255,8 @@ static int vc4_hdmi_encoder_atomic_check(struct drm_encoder *encoder,
        struct vc4_hdmi_connector_state *vc4_state = conn_state_to_vc4_hdmi_conn_state(conn_state);
        struct drm_display_mode *mode = &crtc_state->adjusted_mode;
        struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder);
-       unsigned long long pixel_rate = mode->clock * 1000;
-       unsigned long long tmds_rate;
+       unsigned long long tmds_char_rate = mode->clock * 1000;
+       unsigned long long tmds_bit_rate;
 
        if (vc4_hdmi->variant->unsupported_odd_h_timings &&
            ((mode->hdisplay % 2) || (mode->hsync_start % 2) ||
@@ -1269,32 +1269,32 @@ static int vc4_hdmi_encoder_atomic_check(struct drm_encoder *encoder,
         * bandwidth). Slightly lower the frequency to bring it out of
         * the WiFi range.
         */
-       tmds_rate = pixel_rate * 10;
+       tmds_bit_rate = tmds_char_rate * 10;
        if (vc4_hdmi->disable_wifi_frequencies &&
-           (tmds_rate >= WIFI_2_4GHz_CH1_MIN_FREQ &&
-            tmds_rate <= WIFI_2_4GHz_CH1_MAX_FREQ)) {
+           (tmds_bit_rate >= WIFI_2_4GHz_CH1_MIN_FREQ &&
+            tmds_bit_rate <= WIFI_2_4GHz_CH1_MAX_FREQ)) {
                mode->clock = 238560;
-               pixel_rate = mode->clock * 1000;
+               tmds_char_rate = mode->clock * 1000;
        }
 
        if (conn_state->max_bpc == 12) {
-               pixel_rate = pixel_rate * 150;
-               do_div(pixel_rate, 100);
+               tmds_char_rate = tmds_char_rate * 150;
+               do_div(tmds_char_rate, 100);
        } else if (conn_state->max_bpc == 10) {
-               pixel_rate = pixel_rate * 125;
-               do_div(pixel_rate, 100);
+               tmds_char_rate = tmds_char_rate * 125;
+               do_div(tmds_char_rate, 100);
        }
 
        if (mode->flags & DRM_MODE_FLAG_DBLCLK)
-               pixel_rate = pixel_rate * 2;
+               tmds_char_rate = tmds_char_rate * 2;
 
-       if (pixel_rate > vc4_hdmi->variant->max_pixel_clock)
+       if (tmds_char_rate > vc4_hdmi->variant->max_pixel_clock)
                return -EINVAL;
 
-       if (vc4_hdmi->disable_4kp60 && (pixel_rate > HDMI_14_MAX_TMDS_CLK))
+       if (vc4_hdmi->disable_4kp60 && (tmds_char_rate > HDMI_14_MAX_TMDS_CLK))
                return -EINVAL;
 
-       vc4_state->pixel_rate = pixel_rate;
+       vc4_state->tmds_char_rate = tmds_char_rate;
 
        return 0;
 }

diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.h b/drivers/gpu/drm/vc4/vc4_hdmi.h
index 2b6aaaf..37a87d7 100644 (file)
--- a/drivers/gpu/drm/vc4/vc4_hdmi.h
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.h
@@ -234,7 +234,7 @@ encoder_to_vc4_hdmi(struct drm_encoder *encoder)
 
 struct vc4_hdmi_connector_state {
        struct drm_connector_state      base;
-       unsigned long long              pixel_rate;
+       unsigned long long              tmds_char_rate;
 };
 
 static inline struct vc4_hdmi_connector_state *

diff --git a/drivers/gpu/drm/vc4/vc4_hdmi_phy.c b/drivers/gpu/drm/vc4/vc4_hdmi_phy.c
index 62148f0..ec24999 100644 (file)
--- a/drivers/gpu/drm/vc4/vc4_hdmi_phy.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi_phy.c
@@ -365,7 +365,7 @@ void vc5_hdmi_phy_init(struct vc4_hdmi *vc4_hdmi,
 {
        const struct phy_lane_settings *chan0_settings, *chan1_settings, *chan2_settings, *clock_settings;
        const struct vc4_hdmi_variant *variant = vc4_hdmi->variant;
-       unsigned long long pixel_freq = conn_state->pixel_rate;
+       unsigned long long pixel_freq = conn_state->tmds_char_rate;
        unsigned long long vco_freq;
        unsigned char word_sel;
        unsigned long flags;