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Message-ID: <68eba0ec-bf9c-4d76-a362-5304a4cb61d5@rock-chips.com>
Date: Sat, 27 Apr 2024 18:44:54 +0800
From: Andy Yan <andy.yan@...k-chips.com>
To: Maxime Ripard <mripard@...nel.org>,
Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
Thomas Zimmermann <tzimmermann@...e.de>, David Airlie <airlied@...il.com>,
Daniel Vetter <daniel@...ll.ch>, Jonathan Corbet <corbet@....net>,
Sandy Huang <hjc@...k-chips.com>, Heiko Stübner
<heiko@...ech.de>, Chen-Yu Tsai <wens@...e.org>,
Jernej Skrabec <jernej.skrabec@...il.com>,
Samuel Holland <samuel@...lland.org>
Cc: Hans Verkuil <hverkuil@...all.nl>,
Sebastian Wick <sebastian.wick@...hat.com>,
Ville Syrjälä <ville.syrjala@...ux.intel.com>,
dri-devel@...ts.freedesktop.org, linux-arm-kernel@...ts.infradead.org,
linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-media@...r.kernel.org, linux-rockchip@...ts.infradead.org,
linux-sunxi@...ts.linux.dev
Subject: Re: [PATCH v12 27/28] drm/rockchip: inno_hdmi: Switch to HDMI
connector
Hi Maxime,
On 4/23/24 18:45, Maxime Ripard wrote:
> The new HDMI connector infrastructure allows to remove some boilerplate,
> especially to generate infoframes. Let's switch to it.
>
> Reviewed-by: Heiko Stuebner <heiko@...ech.de>
> Acked-by: Heiko Stuebner <heiko@...ech.de>
> Signed-off-by: Maxime Ripard <mripard@...nel.org>
> ---
> drivers/gpu/drm/rockchip/Kconfig | 1 +
> drivers/gpu/drm/rockchip/inno_hdmi.c | 143 +++++++++++++----------------------
> 2 files changed, 53 insertions(+), 91 deletions(-)
>
> diff --git a/drivers/gpu/drm/rockchip/Kconfig b/drivers/gpu/drm/rockchip/Kconfig
> index 4c7072e6e34e..e2ec20c2e2eb 100644
> --- a/drivers/gpu/drm/rockchip/Kconfig
> +++ b/drivers/gpu/drm/rockchip/Kconfig
> @@ -72,10 +72,11 @@ config ROCKCHIP_DW_MIPI_DSI
> enable MIPI DSI on RK3288 or RK3399 based SoC, you should
> select this option.
>
> config ROCKCHIP_INNO_HDMI
> bool "Rockchip specific extensions for Innosilicon HDMI"
> + depends on DRM_HDMI_STATE_HELPER
> help
> This selects support for Rockchip SoC specific extensions
> for the Innosilicon HDMI driver. If you want to enable
> HDMI on RK3036 based SoC, you should select this option.
>
> diff --git a/drivers/gpu/drm/rockchip/inno_hdmi.c b/drivers/gpu/drm/rockchip/inno_hdmi.c
> index 1d2261643743..3756259bfb10 100644
> --- a/drivers/gpu/drm/rockchip/inno_hdmi.c
> +++ b/drivers/gpu/drm/rockchip/inno_hdmi.c
> @@ -65,13 +65,11 @@ struct inno_hdmi {
> const struct inno_hdmi_variant *variant;
> };
>
I think we should include <drm/display/drm_hdmi_state_helper.h>, or the compile will complain about:
implicit decalaration of funciont drm_atomic_helper_connector_hdmi_update_infoframes
> 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)
> {
> struct rockchip_encoder *rkencoder = to_rockchip_encoder(encoder);
> @@ -255,90 +253,53 @@ static void inno_hdmi_reset(struct inno_hdmi *hdmi)
> hdmi_modb(hdmi, HDMI_SYS_CTRL, msk, val);
>
> 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;
> -
> - if (type != HDMI_INFOFRAME_TYPE_AVI) {
> - drm_err(connector->dev,
> - "Unsupported infoframe type: %u\n", type);
> - return;
> - }
> -
> - hdmi_writeb(hdmi, HDMI_CONTROL_PACKET_BUF_INDEX, INFOFRAME_AVI);
> -}
> -
> -static int inno_hdmi_upload_frame(struct inno_hdmi *hdmi,
> - union hdmi_infoframe *frame, enum hdmi_infoframe_type type)
> -{
> - struct drm_connector *connector = &hdmi->connector;
> - u8 packed_frame[HDMI_MAXIMUM_INFO_FRAME_SIZE];
> - ssize_t rc, i;
> + 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 0;
> }
>
> - inno_hdmi_disable_frame(hdmi, type);
> + hdmi_writeb(hdmi, HDMI_CONTROL_PACKET_BUF_INDEX, INFOFRAME_AVI);
>
> - rc = hdmi_infoframe_pack(frame, packed_frame,
> - sizeof(packed_frame));
> - if (rc < 0)
> - return rc;
> + return 0;
> +}
>
> - for (i = 0; i < rc; i++)
> +static int inno_hdmi_upload_frame(struct drm_connector *connector,
> + enum hdmi_infoframe_type type,
> + const u8 *buffer, size_t len)
> +{
> + struct inno_hdmi *hdmi = connector_to_inno_hdmi(connector);
> + u8 packed_frame[HDMI_MAXIMUM_INFO_FRAME_SIZE];
> + ssize_t i;
> +
> + if (type != HDMI_INFOFRAME_TYPE_AVI) {
> + drm_err(connector->dev,
> + "Unsupported infoframe type: %u\n", type);
> + return 0;
> + }
> +
> + inno_hdmi_disable_frame(connector, type);
> +
> + 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)
> {
> struct drm_connector *connector = &hdmi->connector;
> struct drm_connector_state *conn_state = connector->state;
> @@ -359,12 +320,12 @@ static int inno_hdmi_config_video_csc(struct inno_hdmi *hdmi)
> value = v_VIDEO_INPUT_BITS(VIDEO_INPUT_8BITS) |
> v_VIDEO_OUTPUT_COLOR(0) |
> 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_limited_range) {
> csc_mode = CSC_RGB_0_255_TO_RGB_16_235_8BIT;
> auto_csc = AUTO_CSC_DISABLE;
> c0_c2_change = C0_C2_CHANGE_DISABLE;
> csc_enable = v_CSC_ENABLE;
>
> @@ -378,18 +339,18 @@ static int inno_hdmi_config_video_csc(struct inno_hdmi *hdmi)
> v_VIDEO_C0_C2_SWAP(C0_C2_CHANGE_DISABLE));
> return 0;
> }
> } 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;
> csc_enable = v_CSC_ENABLE;
> }
> @@ -460,14 +421,16 @@ static int inno_hdmi_config_video_timing(struct inno_hdmi *hdmi,
>
> return 0;
> }
>
> 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,
> v_AUDIO_MUTE(1) | v_VIDEO_MUTE(1));
>
> @@ -477,26 +440,26 @@ static int inno_hdmi_setup(struct inno_hdmi *hdmi,
>
> inno_hdmi_config_video_timing(hdmi, mode);
>
> 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
> * timing, then the TMDS clock source would be switched to
> * 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;
> }
>
> static enum drm_mode_status inno_hdmi_display_mode_valid(struct inno_hdmi *hdmi,
> @@ -544,11 +507,11 @@ static void inno_hdmi_encoder_enable(struct drm_encoder *encoder,
>
> crtc_state = drm_atomic_get_new_crtc_state(state, conn_state->crtc);
> 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,
> struct drm_atomic_state *state)
> {
> @@ -561,11 +524,10 @@ static int
> inno_hdmi_encoder_atomic_check(struct drm_encoder *encoder,
> struct drm_crtc_state *crtc_state,
> 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 =
> to_inno_hdmi_conn_state(conn_state);
>
> @@ -578,16 +540,11 @@ inno_hdmi_encoder_atomic_check(struct drm_encoder *encoder,
> vic == 17 || vic == 18)
> inno_conn_state->colorimetry = HDMI_COLORIMETRY_ITU_601;
> 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 = {
> .atomic_check = inno_hdmi_encoder_atomic_check,
> .atomic_enable = inno_hdmi_encoder_enable,
> @@ -660,14 +617,13 @@ static void inno_hdmi_connector_reset(struct drm_connector *connector)
> inno_conn_state = kzalloc(sizeof(*inno_conn_state), GFP_KERNEL);
> if (!inno_conn_state)
> 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 *
> inno_hdmi_connector_duplicate_state(struct drm_connector *connector)
> {
> @@ -696,10 +652,11 @@ static const struct drm_connector_funcs inno_hdmi_connector_funcs = {
> .atomic_duplicate_state = inno_hdmi_connector_duplicate_state,
> .atomic_destroy_state = inno_hdmi_connector_destroy_state,
> };
>
> 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,
> };
>
> static int inno_hdmi_register(struct drm_device *drm, struct inno_hdmi *hdmi)
> @@ -723,14 +680,18 @@ static int inno_hdmi_register(struct drm_device *drm, struct inno_hdmi *hdmi)
>
> hdmi->connector.polled = DRM_CONNECTOR_POLL_HPD;
>
> 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);
This function call will failed as inno_hdmi_connector_funcs has a destory callback.
drmm_connector_init have the check:
if (drm_WARN_ON(dev, funcs && funcs->destory))
return -EINVAL.
I think the patch for sun4i has the same issue.
>
> drm_connector_attach_encoder(&hdmi->connector, encoder);
>
> return 0;
> }
>
And after this whole series applied on linux 6.9-rc4, the display on rk3036 kylin is lost, I get
the following error:
[ 178.999421] rockchip-drm display-subsystem: [drm:drm_atomic_check_only] checking 87b7fbde
[ 178.999471] rockchip-drm display-subsystem: [drm:drm_atomic_helper_check_modeset] [CRTC:35:crtc-0] mode changed
[ 178.999498] rockchip-drm display-subsystem: [drm:drm_atomic_helper_check_modeset] [CRTC:35:crtc-0] enable changed
[ 178.999521] rockchip-drm display-subsystem: [drm:drm_atomic_helper_check_modeset] [CRTC:35:crtc-0] active changed
[ 178.999547] rockchip-drm display-subsystem: [drm:drm_atomic_helper_check_modeset] Updating routing for [CONNECTOR:37:HDMI-A-1]
[ 178.999575] rockchip-drm display-subsystem: [drm:drm_atomic_helper_check_modeset] [CONNECTOR:37:HDMI-A-1] using [ENCODER:36:TMDS-36] on [CRTC:35:crtc-0]
[ 178.999604] rockchip-drm display-subsystem: [drm:drm_atomic_helper_connector_hdmi_check] Trying with a 8 bpc output
[ 178.999636] rockchip-drm display-subsystem: [drm:drm_atomic_helper_connector_hdmi_check] Trying RGB output format
[ 178.999730] rockchip-drm display-subsystem: [drm:drm_atomic_helper_connector_hdmi_check] RGB Format, checking the constraints.
[ 178.999757] rockchip-drm display-subsystem: [drm:drm_atomic_helper_connector_hdmi_check] RGB output format not supported with 8 bpc
[ 178.999783] rockchip-drm display-subsystem: [drm:drm_atomic_helper_connector_hdmi_check] Failed. No Format Supported for that bpc count.
[ 178.999810] rockchip-drm display-subsystem: [drm:drm_atomic_helper_check_modeset] [CONNECTOR:37:HDMI-A-1] driver check failed
[ 178.999836] rockchip-drm display-subsystem: [drm:drm_atomic_check_only] atomic driver check for 87b7fbde failed: -22
[ 178.999868] rockchip-drm display-subsystem: [drm:drm_atomic_state_default_clear] Clearing atomic state 87b7fbde
[ 178.999898] [drm:drm_mode_object_put] OBJ ID: 37 (4)
[ 178.999922] [drm:drm_mode_object_put] OBJ ID: 37 (3)
[ 178.999944] [drm:drm_mode_object_put] OBJ ID: 40 (1)
[ 178.999971] [drm:drm_mode_object_put] OBJ ID: 39 (2)
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