Re: [PATCH v7 31/36] drm/rockchip: inno_hdmi: Switch to HDMI connector

Heiko Stübner
2024-02-23T09:51:57Z

Am Donnerstag, 22. Februar 2024, 19:14:17 CET schrieb Maxime Ripard:
> The new HDMI connector infrastructure allows to remove some boilerplate,
> especially to generate infoframes. Let's switch to it.
>
> Signed-off-by: Maxime Ripard <mripard@kernel.org>

Reviewed-by: Heiko Stuebner <heiko@sntech.de>

> ---
> drivers/gpu/drm/rockchip/inno_hdmi.c | 123 ++++++++++++-----------------------
> 1 file changed, 42 insertions(+), 81 deletions(-)
>
> diff --git a/drivers/gpu/drm/rockchip/inno_hdmi.c b/drivers/gpu/drm/rockchip/inno_hdmi.c
> index 1d2261643743..d59947679042 100644
> --- a/drivers/gpu/drm/rockchip/inno_hdmi.c
> +++ b/drivers/gpu/drm/rockchip/inno_hdmi.c
> @@ -67,9 +67,7 @@ struct inno_hdmi {
>
> struct inno_hdmi_connector_state {
> struct drm_connector_state base;
> - unsigned int enc_out_format;
> unsigned int colorimetry;
> - bool rgb_limited_range;
> };
>
> static struct inno_hdmi *encoder_to_inno_hdmi(struct drm_encoder *encoder)
> @@ -257,26 +255,29 @@ static void inno_hdmi_reset(struct inno_hdmi *hdmi)
> inno_hdmi_standby(hdmi);
> }
>
> -static void inno_hdmi_disable_frame(struct inno_hdmi *hdmi,
> - enum hdmi_infoframe_type type)
> +static int inno_hdmi_disable_frame(struct drm_connector *connector,
> + enum hdmi_infoframe_type type)
> {
> - struct drm_connector *connector = &hdmi->connector;
> + struct inno_hdmi *hdmi = connector_to_inno_hdmi(connector);
>
> if (type != HDMI_INFOFRAME_TYPE_AVI) {
> drm_err(connector->dev,
> "Unsupported infoframe type: %u\n", type);
> - return;
> + return 0;
> }
>
> hdmi_writeb(hdmi, HDMI_CONTROL_PACKET_BUF_INDEX, INFOFRAME_AVI);
> +
> + return 0;
> }
>
> -static int inno_hdmi_upload_frame(struct inno_hdmi *hdmi,
> - union hdmi_infoframe *frame, enum hdmi_infoframe_type type)
> +static int inno_hdmi_upload_frame(struct drm_connector *connector,
> + enum hdmi_infoframe_type type,
> + const u8 *buffer, size_t len)
> {
> - struct drm_connector *connector = &hdmi->connector;
> + struct inno_hdmi *hdmi = connector_to_inno_hdmi(connector);
> u8 packed_frame[HDMI_MAXIMUM_INFO_FRAME_SIZE];
> - ssize_t rc, i;
> + ssize_t i;
>
> if (type != HDMI_INFOFRAME_TYPE_AVI) {
> drm_err(connector->dev,
> @@ -284,59 +285,19 @@ static int inno_hdmi_upload_frame(struct inno_hdmi *hdmi,
> return 0;
> }
>
> - inno_hdmi_disable_frame(hdmi, type);
> + inno_hdmi_disable_frame(connector, type);
>
> - rc = hdmi_infoframe_pack(frame, packed_frame,
> - sizeof(packed_frame));
> - if (rc < 0)
> - return rc;
> -
> - for (i = 0; i < rc; i++)
> + for (i = 0; i < len; i++)
> hdmi_writeb(hdmi, HDMI_CONTROL_PACKET_ADDR + i,
> packed_frame[i]);
>
> return 0;
> }
>
> -static int inno_hdmi_config_video_avi(struct inno_hdmi *hdmi,
> - struct drm_display_mode *mode)
> -{
> - struct drm_connector *connector = &hdmi->connector;
> - struct drm_connector_state *conn_state = connector->state;
> - struct inno_hdmi_connector_state *inno_conn_state =
> - to_inno_hdmi_conn_state(conn_state);
> - union hdmi_infoframe frame;
> - int rc;
> -
> - rc = drm_hdmi_avi_infoframe_from_display_mode(&frame.avi,
> - &hdmi->connector,
> - mode);
> - if (rc) {
> - inno_hdmi_disable_frame(hdmi, HDMI_INFOFRAME_TYPE_AVI);
> - return rc;
> - }
> -
> - if (inno_conn_state->enc_out_format == HDMI_COLORSPACE_YUV444)
> - frame.avi.colorspace = HDMI_COLORSPACE_YUV444;
> - else if (inno_conn_state->enc_out_format == HDMI_COLORSPACE_YUV422)
> - frame.avi.colorspace = HDMI_COLORSPACE_YUV422;
> - else
> - frame.avi.colorspace = HDMI_COLORSPACE_RGB;
> -
> - if (inno_conn_state->enc_out_format == HDMI_COLORSPACE_RGB) {
> - drm_hdmi_avi_infoframe_quant_range(&frame.avi,
> - connector, mode,
> - inno_conn_state->rgb_limited_range ?
> - HDMI_QUANTIZATION_RANGE_LIMITED :
> - HDMI_QUANTIZATION_RANGE_FULL);
> - } else {
> - frame.avi.quantization_range = HDMI_QUANTIZATION_RANGE_DEFAULT;
> - frame.avi.ycc_quantization_range =
> - HDMI_YCC_QUANTIZATION_RANGE_LIMITED;
> - }
> -
> - return inno_hdmi_upload_frame(hdmi, &frame, HDMI_INFOFRAME_TYPE_AVI);
> -}
> +static const struct drm_connector_hdmi_funcs inno_hdmi_hdmi_connector_funcs = {
> + .clear_infoframe = inno_hdmi_disable_frame,
> + .write_infoframe = inno_hdmi_upload_frame,
> +};
>
> static int inno_hdmi_config_video_csc(struct inno_hdmi *hdmi)
> {
> @@ -361,8 +322,8 @@ static int inno_hdmi_config_video_csc(struct inno_hdmi *hdmi)
> v_VIDEO_INPUT_CSP(0);
> hdmi_writeb(hdmi, HDMI_VIDEO_CONTRL2, value);
>
> - if (inno_conn_state->enc_out_format == HDMI_COLORSPACE_RGB) {
> - if (inno_conn_state->rgb_limited_range) {
> + if (conn_state->hdmi.output_format == HDMI_COLORSPACE_RGB) {
> + if (!conn_state->hdmi.is_full_range) {
> csc_mode = CSC_RGB_0_255_TO_RGB_16_235_8BIT;
> auto_csc = AUTO_CSC_DISABLE;
> c0_c2_change = C0_C2_CHANGE_DISABLE;
> @@ -380,14 +341,14 @@ static int inno_hdmi_config_video_csc(struct inno_hdmi *hdmi)
> }
> } else {
> if (inno_conn_state->colorimetry == HDMI_COLORIMETRY_ITU_601) {
> - if (inno_conn_state->enc_out_format == HDMI_COLORSPACE_YUV444) {
> + if (conn_state->hdmi.output_format == HDMI_COLORSPACE_YUV444) {
> csc_mode = CSC_RGB_0_255_TO_ITU601_16_235_8BIT;
> auto_csc = AUTO_CSC_DISABLE;
> c0_c2_change = C0_C2_CHANGE_DISABLE;
> csc_enable = v_CSC_ENABLE;
> }
> } else {
> - if (inno_conn_state->enc_out_format == HDMI_COLORSPACE_YUV444) {
> + if (conn_state->hdmi.output_format == HDMI_COLORSPACE_YUV444) {
> csc_mode = CSC_RGB_0_255_TO_ITU709_16_235_8BIT;
> auto_csc = AUTO_CSC_DISABLE;
> c0_c2_change = C0_C2_CHANGE_DISABLE;
> @@ -462,10 +423,12 @@ static int inno_hdmi_config_video_timing(struct inno_hdmi *hdmi,
> }
>
> static int inno_hdmi_setup(struct inno_hdmi *hdmi,
> - struct drm_display_mode *mode)
> + struct drm_crtc_state *new_crtc_state,
> + struct drm_connector_state *new_conn_state)
> {
> - struct drm_display_info *display = &hdmi->connector.display_info;
> - unsigned long mpixelclock = mode->clock * 1000;
> + struct drm_connector *connector = &hdmi->connector;
> + struct drm_display_info *display = &connector->display_info;
> + struct drm_display_mode *mode = &new_crtc_state->adjusted_mode;
>
> /* Mute video and audio output */
> hdmi_modb(hdmi, HDMI_AV_MUTE, m_AUDIO_MUTE | m_VIDEO_BLACK,
> @@ -479,8 +442,8 @@ static int inno_hdmi_setup(struct inno_hdmi *hdmi,
>
> inno_hdmi_config_video_csc(hdmi);
>
> - if (display->is_hdmi)
> - inno_hdmi_config_video_avi(hdmi, mode);
> + drm_atomic_helper_connector_hdmi_update_infoframes(connector,
> + new_conn_state->state);
>
> /*
> * When IP controller have configured to an accurate video
> @@ -488,13 +451,13 @@ static int inno_hdmi_setup(struct inno_hdmi *hdmi,
> * DCLK_LCDC, so we need to init the TMDS rate to mode pixel
> * clock rate, and reconfigure the DDC clock.
> */
> - inno_hdmi_i2c_init(hdmi, mpixelclock);
> + inno_hdmi_i2c_init(hdmi, new_conn_state->hdmi.tmds_char_rate);
>
> /* Unmute video and audio output */
> hdmi_modb(hdmi, HDMI_AV_MUTE, m_AUDIO_MUTE | m_VIDEO_BLACK,
> v_AUDIO_MUTE(0) | v_VIDEO_MUTE(0));
>
> - inno_hdmi_power_up(hdmi, mpixelclock);
> + inno_hdmi_power_up(hdmi, new_conn_state->hdmi.tmds_char_rate);
>
> return 0;
> }
> @@ -546,7 +509,7 @@ static void inno_hdmi_encoder_enable(struct drm_encoder *encoder,
> if (WARN_ON(!crtc_state))
> return;
>
> - inno_hdmi_setup(hdmi, &crtc_state->adjusted_mode);
> + inno_hdmi_setup(hdmi, crtc_state, conn_state);
> }
>
> static void inno_hdmi_encoder_disable(struct drm_encoder *encoder,
> @@ -563,7 +526,6 @@ inno_hdmi_encoder_atomic_check(struct drm_encoder *encoder,
> struct drm_connector_state *conn_state)
> {
> struct rockchip_crtc_state *s = to_rockchip_crtc_state(crtc_state);
> - struct inno_hdmi *hdmi = encoder_to_inno_hdmi(encoder);
> struct drm_display_mode *mode = &crtc_state->adjusted_mode;
> u8 vic = drm_match_cea_mode(mode);
> struct inno_hdmi_connector_state *inno_conn_state =
> @@ -580,12 +542,7 @@ inno_hdmi_encoder_atomic_check(struct drm_encoder *encoder,
> else
> inno_conn_state->colorimetry = HDMI_COLORIMETRY_ITU_709;
>
> - inno_conn_state->enc_out_format = HDMI_COLORSPACE_RGB;
> - inno_conn_state->rgb_limited_range =
> - drm_default_rgb_quant_range(mode) == HDMI_QUANTIZATION_RANGE_LIMITED;
> -
> - return inno_hdmi_display_mode_valid(hdmi,
> - &crtc_state->adjusted_mode) == MODE_OK ? 0 : -EINVAL;
> + return 0;
> }
>
> static struct drm_encoder_helper_funcs inno_hdmi_encoder_helper_funcs = {
> @@ -662,10 +619,9 @@ static void inno_hdmi_connector_reset(struct drm_connector *connector)
> return;
>
> __drm_atomic_helper_connector_reset(connector, &inno_conn_state->base);
> + __drm_atomic_helper_connector_hdmi_reset(connector, connector->state);
>
> inno_conn_state->colorimetry = HDMI_COLORIMETRY_ITU_709;
> - inno_conn_state->enc_out_format = HDMI_COLORSPACE_RGB;
> - inno_conn_state->rgb_limited_range = false;
> }
>
> static struct drm_connector_state *
> @@ -698,6 +654,7 @@ static const struct drm_connector_funcs inno_hdmi_connector_funcs = {
> };
>
> static struct drm_connector_helper_funcs inno_hdmi_connector_helper_funcs = {
> + .atomic_check = drm_atomic_helper_connector_hdmi_check,
> .get_modes = inno_hdmi_connector_get_modes,
> .mode_valid = inno_hdmi_connector_mode_valid,
> };
> @@ -725,10 +682,14 @@ static int inno_hdmi_register(struct drm_device *drm, struct inno_hdmi *hdmi)
>
> drm_connector_helper_add(&hdmi->connector,
> &inno_hdmi_connector_helper_funcs);
> - drm_connector_init_with_ddc(drm, &hdmi->connector,
> - &inno_hdmi_connector_funcs,
> - DRM_MODE_CONNECTOR_HDMIA,
> - hdmi->ddc);
> + drmm_connector_hdmi_init(drm, &hdmi->connector,
> + "Rockchip", "Inno HDMI",
> + &inno_hdmi_connector_funcs,
> + &inno_hdmi_hdmi_connector_funcs,
> + DRM_MODE_CONNECTOR_HDMIA,
> + hdmi->ddc,
> + BIT(HDMI_COLORSPACE_RGB),
> + 8);
>
> drm_connector_attach_encoder(&hdmi->connector, encoder);