From: Maxime Ripard <maxime@cerno.tech> To: Daniel Vetter <daniel.vetter@intel.com>, David Airlie <airlied@linux.ie>, Maarten Lankhorst <maarten.lankhorst@linux.intel.com>, Thomas Zimmermann <tzimmermann@suse.de>, Maxime Ripard <maxime@cerno.tech>, Eric Anholt <eric@anholt.net> Cc: linux-rpi-kernel@lists.infradead.org, bcm-kernel-feedback-list@broadcom.com, linux-arm-kernel@lists.infradead.org, dri-devel@lists.freedesktop.org, Dave Stevenson <dave.stevenson@raspberrypi.com> Subject: [PATCH v3 4/7] drm/vc4: hdmi: Store pixel frequency in the connector state Date: Tue, 1 Dec 2020 14:12:46 +0100 [thread overview] Message-ID: <20201201131249.438273-5-maxime@cerno.tech> (raw) In-Reply-To: <20201201131249.438273-1-maxime@cerno.tech> The pixel rate is for now quite simple to compute, but with more features (30 and 36 bits output, YUV output, etc.) will depend on a bunch of connectors properties. Let's store the rate we have to run the pixel clock at in our custom connector state, and compute it in atomic_check. Signed-off-by: Maxime Ripard <maxime@cerno.tech> --- drivers/gpu/drm/vc4/vc4_hdmi.c | 26 +++++++++++++++++++++++++- drivers/gpu/drm/vc4/vc4_hdmi.h | 1 + 2 files changed, 26 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c index 9fb7a77c86e8..61baf3c39d43 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.c +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c @@ -192,6 +192,7 @@ vc4_hdmi_connector_duplicate_state(struct drm_connector *connector) if (!new_state) return NULL; + new_state->pixel_rate = vc4_state->pixel_rate; __drm_atomic_helper_connector_duplicate_state(connector, &new_state->base); return &new_state->base; @@ -609,9 +610,29 @@ static void vc4_hdmi_recenter_fifo(struct vc4_hdmi *vc4_hdmi) "VC4_HDMI_FIFO_CTL_RECENTER_DONE"); } +static struct drm_connector_state * +vc4_hdmi_encoder_get_connector_state(struct drm_encoder *encoder, + struct drm_atomic_state *state) +{ + struct drm_connector_state *conn_state; + struct drm_connector *connector; + unsigned int i; + + for_each_new_connector_in_state(state, connector, conn_state, i) { + if (conn_state->best_encoder == encoder) + return conn_state; + } + + return NULL; +} + static void vc4_hdmi_encoder_pre_crtc_configure(struct drm_encoder *encoder, struct drm_atomic_state *state) { + struct drm_connector_state *conn_state = + vc4_hdmi_encoder_get_connector_state(encoder, state); + struct vc4_hdmi_connector_state *vc4_conn_state = + conn_state_to_vc4_hdmi_conn_state(conn_state); struct drm_display_mode *mode = &encoder->crtc->state->adjusted_mode; struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder); unsigned long pixel_rate, hsm_rate; @@ -623,7 +644,7 @@ static void vc4_hdmi_encoder_pre_crtc_configure(struct drm_encoder *encoder, return; } - pixel_rate = mode->clock * 1000 * ((mode->flags & DRM_MODE_FLAG_DBLCLK) ? 2 : 1); + pixel_rate = vc4_conn_state->pixel_rate; ret = clk_set_rate(vc4_hdmi->pixel_clock, pixel_rate); if (ret) { DRM_ERROR("Failed to set pixel clock rate: %d\n", ret); @@ -795,6 +816,7 @@ static int vc4_hdmi_encoder_atomic_check(struct drm_encoder *encoder, struct drm_crtc_state *crtc_state, struct drm_connector_state *conn_state) { + 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; @@ -822,6 +844,8 @@ static int vc4_hdmi_encoder_atomic_check(struct drm_encoder *encoder, if (pixel_rate > vc4_hdmi->variant->max_pixel_clock) return -EINVAL; + vc4_state->pixel_rate = pixel_rate; + return 0; } diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.h b/drivers/gpu/drm/vc4/vc4_hdmi.h index 2cf5362052e2..bca6943de884 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.h +++ b/drivers/gpu/drm/vc4/vc4_hdmi.h @@ -182,6 +182,7 @@ encoder_to_vc4_hdmi(struct drm_encoder *encoder) struct vc4_hdmi_connector_state { struct drm_connector_state base; + unsigned long long pixel_rate; }; static inline struct vc4_hdmi_connector_state * -- 2.28.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
WARNING: multiple messages have this Message-ID (diff)
From: Maxime Ripard <maxime@cerno.tech> To: Daniel Vetter <daniel.vetter@intel.com>, David Airlie <airlied@linux.ie>, Maarten Lankhorst <maarten.lankhorst@linux.intel.com>, Thomas Zimmermann <tzimmermann@suse.de>, Maxime Ripard <maxime@cerno.tech>, Eric Anholt <eric@anholt.net> Cc: linux-rpi-kernel@lists.infradead.org, bcm-kernel-feedback-list@broadcom.com, linux-arm-kernel@lists.infradead.org, dri-devel@lists.freedesktop.org, Dave Stevenson <dave.stevenson@raspberrypi.com> Subject: [PATCH v3 4/7] drm/vc4: hdmi: Store pixel frequency in the connector state Date: Tue, 1 Dec 2020 14:12:46 +0100 [thread overview] Message-ID: <20201201131249.438273-5-maxime@cerno.tech> (raw) In-Reply-To: <20201201131249.438273-1-maxime@cerno.tech> The pixel rate is for now quite simple to compute, but with more features (30 and 36 bits output, YUV output, etc.) will depend on a bunch of connectors properties. Let's store the rate we have to run the pixel clock at in our custom connector state, and compute it in atomic_check. Signed-off-by: Maxime Ripard <maxime@cerno.tech> --- drivers/gpu/drm/vc4/vc4_hdmi.c | 26 +++++++++++++++++++++++++- drivers/gpu/drm/vc4/vc4_hdmi.h | 1 + 2 files changed, 26 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c index 9fb7a77c86e8..61baf3c39d43 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.c +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c @@ -192,6 +192,7 @@ vc4_hdmi_connector_duplicate_state(struct drm_connector *connector) if (!new_state) return NULL; + new_state->pixel_rate = vc4_state->pixel_rate; __drm_atomic_helper_connector_duplicate_state(connector, &new_state->base); return &new_state->base; @@ -609,9 +610,29 @@ static void vc4_hdmi_recenter_fifo(struct vc4_hdmi *vc4_hdmi) "VC4_HDMI_FIFO_CTL_RECENTER_DONE"); } +static struct drm_connector_state * +vc4_hdmi_encoder_get_connector_state(struct drm_encoder *encoder, + struct drm_atomic_state *state) +{ + struct drm_connector_state *conn_state; + struct drm_connector *connector; + unsigned int i; + + for_each_new_connector_in_state(state, connector, conn_state, i) { + if (conn_state->best_encoder == encoder) + return conn_state; + } + + return NULL; +} + static void vc4_hdmi_encoder_pre_crtc_configure(struct drm_encoder *encoder, struct drm_atomic_state *state) { + struct drm_connector_state *conn_state = + vc4_hdmi_encoder_get_connector_state(encoder, state); + struct vc4_hdmi_connector_state *vc4_conn_state = + conn_state_to_vc4_hdmi_conn_state(conn_state); struct drm_display_mode *mode = &encoder->crtc->state->adjusted_mode; struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder); unsigned long pixel_rate, hsm_rate; @@ -623,7 +644,7 @@ static void vc4_hdmi_encoder_pre_crtc_configure(struct drm_encoder *encoder, return; } - pixel_rate = mode->clock * 1000 * ((mode->flags & DRM_MODE_FLAG_DBLCLK) ? 2 : 1); + pixel_rate = vc4_conn_state->pixel_rate; ret = clk_set_rate(vc4_hdmi->pixel_clock, pixel_rate); if (ret) { DRM_ERROR("Failed to set pixel clock rate: %d\n", ret); @@ -795,6 +816,7 @@ static int vc4_hdmi_encoder_atomic_check(struct drm_encoder *encoder, struct drm_crtc_state *crtc_state, struct drm_connector_state *conn_state) { + 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; @@ -822,6 +844,8 @@ static int vc4_hdmi_encoder_atomic_check(struct drm_encoder *encoder, if (pixel_rate > vc4_hdmi->variant->max_pixel_clock) return -EINVAL; + vc4_state->pixel_rate = pixel_rate; + return 0; } diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.h b/drivers/gpu/drm/vc4/vc4_hdmi.h index 2cf5362052e2..bca6943de884 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.h +++ b/drivers/gpu/drm/vc4/vc4_hdmi.h @@ -182,6 +182,7 @@ encoder_to_vc4_hdmi(struct drm_encoder *encoder) struct vc4_hdmi_connector_state { struct drm_connector_state base; + unsigned long long pixel_rate; }; static inline struct vc4_hdmi_connector_state * -- 2.28.0 _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
next prev parent reply other threads:[~2020-12-01 13:14 UTC|newest] Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-12-01 13:12 [PATCH v3 0/7] drm/vc4: hdmi: Support the 10/12 bit output Maxime Ripard 2020-12-01 13:12 ` Maxime Ripard 2020-12-01 13:12 ` [PATCH v3 1/7] drm/vc4: hvs: Align the HVS atomic hooks to the new API Maxime Ripard 2020-12-01 13:12 ` Maxime Ripard 2020-12-01 14:25 ` Thomas Zimmermann 2020-12-01 14:25 ` Thomas Zimmermann 2020-12-01 13:12 ` [PATCH v3 2/7] drm/vc4: Pass the atomic state to encoder hooks Maxime Ripard 2020-12-01 13:12 ` Maxime Ripard 2020-12-01 13:12 ` [PATCH v3 3/7] drm/vc4: hdmi: Create a custom connector state Maxime Ripard 2020-12-01 13:12 ` Maxime Ripard 2020-12-01 13:12 ` Maxime Ripard [this message] 2020-12-01 13:12 ` [PATCH v3 4/7] drm/vc4: hdmi: Store pixel frequency in the " Maxime Ripard 2020-12-01 13:12 ` [PATCH v3 5/7] drm/vc4: hdmi: Use the connector state pixel rate for the PHY Maxime Ripard 2020-12-01 13:12 ` Maxime Ripard 2020-12-01 13:12 ` [PATCH v3 6/7] drm/vc4: hdmi: Limit the BCM2711 to the max without scrambling Maxime Ripard 2020-12-01 13:12 ` Maxime Ripard 2020-12-01 13:12 ` [PATCH v3 7/7] drm/vc4: hdmi: Enable 10/12 bpc output Maxime Ripard 2020-12-01 13:12 ` Maxime Ripard
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