[PATCH] drm/rockchip: get rid of rockchip_drm_crtc_mode_config

John Keeping john at metanate.com
Mon Apr 18 02:25:38 PDT 2016


Hi Mark,

On Mon, 18 Apr 2016 11:03:31 +0800, Mark Yao wrote:

> We need to take care of the vop status when use
> rockchip_drm_crtc_mode_config, if vop is disabled,
> the function would failed, that is terrible.
> 
> Save connector type and output mode on drm_display_mode->private_flags
> at encoder mode_fixup, then we can configure the type and mode safely
> on crtc mode_set.

Since Rockchip is atomic, shouldn't this be using atomic_check hooks and
a subclassed crtc_state structure?

> Signed-off-by: Mark Yao <mark.yao at rock-chips.com>
> ---
>  drivers/gpu/drm/rockchip/analogix_dp-rockchip.c |   37 +++++++---------
>  drivers/gpu/drm/rockchip/dw-mipi-dsi.c          |   44 ++++++++++---------
>  drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c     |    5 +--
>  drivers/gpu/drm/rockchip/inno_hdmi.c            |    5 +--
>  drivers/gpu/drm/rockchip/rockchip_drm_drv.h     |    2 -
>  drivers/gpu/drm/rockchip/rockchip_drm_vop.c     |   51 +++++++++--------------
>  drivers/gpu/drm/rockchip/rockchip_drm_vop.h     |    6 +++
>  7 files changed, 69 insertions(+), 81 deletions(-)
> 
> diff --git a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
> index a1d94d8..0344e52 100644
> --- a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
> +++ b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
> @@ -97,7 +97,21 @@ rockchip_dp_drm_encoder_mode_fixup(struct drm_encoder *encoder,
>  				   const struct drm_display_mode *mode,
>  				   struct drm_display_mode *adjusted_mode)
>  {
> -	/* do nothing */
> +	/*
> +	 * FIXME(Yakir): driver should configure the CRTC output video
> +	 * mode with the display information which indicated the monitor
> +	 * support colorimetry.
> +	 *
> +	 * But don't know why the CRTC driver seems could only output the
> +	 * RGBaaa rightly. For example, if connect the "innolux,n116bge"
> +	 * eDP screen, EDID would indicated that screen only accepted the
> +	 * 6bpc mode. But if I configure CRTC to RGB666 output, then eDP
> +	 * screen would show a blue picture (RGB888 show a green picture).
> +	 * But if I configure CTRC to RGBaaa, and eDP driver still keep
> +	 * RGB666 input video mode, then screen would works prefect.
> +	 */
> +	adjusted_mode->private_flags = ROCKCHIP_DSP_MODE(eDP, AAAA);
> +
>  	return true;
>  }
>  
> @@ -114,27 +128,6 @@ static void rockchip_dp_drm_encoder_enable(struct drm_encoder *encoder)
>  	int ret;
>  	u32 val;
>  
> -	/*
> -	 * FIXME(Yakir): driver should configure the CRTC output video
> -	 * mode with the display information which indicated the monitor
> -	 * support colorimetry.
> -	 *
> -	 * But don't know why the CRTC driver seems could only output the
> -	 * RGBaaa rightly. For example, if connect the "innolux,n116bge"
> -	 * eDP screen, EDID would indicated that screen only accepted the
> -	 * 6bpc mode. But if I configure CRTC to RGB666 output, then eDP
> -	 * screen would show a blue picture (RGB888 show a green picture).
> -	 * But if I configure CTRC to RGBaaa, and eDP driver still keep
> -	 * RGB666 input video mode, then screen would works prefect.
> -	 */
> -	ret = rockchip_drm_crtc_mode_config(encoder->crtc,
> -					    DRM_MODE_CONNECTOR_eDP,
> -					    ROCKCHIP_OUT_MODE_AAAA);
> -	if (ret < 0) {
> -		dev_err(dp->dev, "Could not set crtc mode config (%d)\n", ret);
> -		return;
> -	}
> -
>  	ret = drm_of_encoder_active_endpoint_id(dp->dev->of_node, encoder);
>  	if (ret < 0)
>  		return;
> diff --git a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c
> index 7975158..49c4c72 100644
> --- a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c
> +++ b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c
> @@ -875,11 +875,34 @@ static void dw_mipi_dsi_encoder_disable(struct drm_encoder *encoder)
>  	clk_disable_unprepare(dsi->pclk);
>  }
>  
> +static bool dw_mipi_dsi_encoder_mode_fixup(struct drm_encoder *encoder,
> +					const struct drm_display_mode *mode,
> +					struct drm_display_mode *adjusted_mode)
> +{
> +	struct dw_mipi_dsi *dsi = encoder_to_dsi(encoder);
> +
> +	switch (dsi->format) {
> +	case MIPI_DSI_FMT_RGB888:
> +		adjusted_mode->private_flags = ROCKCHIP_DSP_MODE(DSI, P888);
> +		break;
> +	case MIPI_DSI_FMT_RGB666:
> +		adjusted_mode->private_flags = ROCKCHIP_DSP_MODE(DSI, P666);
> +		break;
> +	case MIPI_DSI_FMT_RGB565:
> +		adjusted_mode->private_flags = ROCKCHIP_DSP_MODE(DSI, P565);
> +		break;
> +	default:
> +		WARN_ON(1);
> +		return false;
> +	}
> +
> +	return true;
> +}
> +
>  static void dw_mipi_dsi_encoder_commit(struct drm_encoder *encoder)
>  {
>  	struct dw_mipi_dsi *dsi = encoder_to_dsi(encoder);
>  	int mux = drm_of_encoder_active_endpoint_id(dsi->dev->of_node, encoder);
> -	u32 interface_pix_fmt;
>  	u32 val;
>  
>  	if (clk_prepare_enable(dsi->pclk)) {
> @@ -895,24 +918,6 @@ static void dw_mipi_dsi_encoder_commit(struct drm_encoder *encoder)
>  
>  	clk_disable_unprepare(dsi->pclk);
>  
> -	switch (dsi->format) {
> -	case MIPI_DSI_FMT_RGB888:
> -		interface_pix_fmt = ROCKCHIP_OUT_MODE_P888;
> -		break;
> -	case MIPI_DSI_FMT_RGB666:
> -		interface_pix_fmt = ROCKCHIP_OUT_MODE_P666;
> -		break;
> -	case MIPI_DSI_FMT_RGB565:
> -		interface_pix_fmt = ROCKCHIP_OUT_MODE_P565;
> -		break;
> -	default:
> -		WARN_ON(1);
> -		return;
> -	}
> -
> -	rockchip_drm_crtc_mode_config(encoder->crtc, DRM_MODE_CONNECTOR_DSI,
> -				      interface_pix_fmt);
> -
>  	if (mux)
>  		val = DSI0_SEL_VOP_LIT | (DSI0_SEL_VOP_LIT << 16);
>  	else
> @@ -924,6 +929,7 @@ static void dw_mipi_dsi_encoder_commit(struct drm_encoder *encoder)
>  
>  static struct drm_encoder_helper_funcs
>  dw_mipi_dsi_encoder_helper_funcs = {
> +	.mode_fixup = dw_mipi_dsi_encoder_mode_fixup,
>  	.commit = dw_mipi_dsi_encoder_commit,
>  	.mode_set = dw_mipi_dsi_encoder_mode_set,
>  	.disable = dw_mipi_dsi_encoder_disable,
> diff --git a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
> index d5cfef7..a72af30 100644
> --- a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
> +++ b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
> @@ -186,6 +186,8 @@ dw_hdmi_rockchip_encoder_mode_fixup(struct drm_encoder *encoder,
>  				    const struct drm_display_mode *mode,
>  				    struct drm_display_mode *adj_mode)
>  {
> +	adj_mode->private_flags = ROCKCHIP_DSP_MODE(HDMIA, AAAA);
> +
>  	return true;
>  }
>  
> @@ -201,9 +203,6 @@ static void dw_hdmi_rockchip_encoder_enable(struct drm_encoder *encoder)
>  	u32 val;
>  	int mux;
>  
> -	rockchip_drm_crtc_mode_config(encoder->crtc, DRM_MODE_CONNECTOR_HDMIA,
> -				      ROCKCHIP_OUT_MODE_AAAA);
> -
>  	mux = drm_of_encoder_active_endpoint_id(hdmi->dev->of_node, encoder);
>  	if (mux)
>  		val = HDMI_SEL_VOP_LIT | (HDMI_SEL_VOP_LIT << 16);
> diff --git a/drivers/gpu/drm/rockchip/inno_hdmi.c b/drivers/gpu/drm/rockchip/inno_hdmi.c
> index 10d62ff..ef6ad91 100644
> --- a/drivers/gpu/drm/rockchip/inno_hdmi.c
> +++ b/drivers/gpu/drm/rockchip/inno_hdmi.c
> @@ -500,9 +500,6 @@ static void inno_hdmi_encoder_enable(struct drm_encoder *encoder)
>  {
>  	struct inno_hdmi *hdmi = to_inno_hdmi(encoder);
>  
> -	rockchip_drm_crtc_mode_config(encoder->crtc, DRM_MODE_CONNECTOR_HDMIA,
> -				      ROCKCHIP_OUT_MODE_P888);
> -
>  	inno_hdmi_set_pwr_mode(hdmi, NORMAL);
>  }
>  
> @@ -517,6 +514,8 @@ static bool inno_hdmi_encoder_mode_fixup(struct drm_encoder *encoder,
>  					 const struct drm_display_mode *mode,
>  					 struct drm_display_mode *adj_mode)
>  {
> +	adj_mode->private_flags = ROCKCHIP_DSP_MODE(HDMIA, P888);
> +
>  	return true;
>  }
>  
> diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.h b/drivers/gpu/drm/rockchip/rockchip_drm_drv.h
> index 00d17d7..683210b 100644
> --- a/drivers/gpu/drm/rockchip/rockchip_drm_drv.h
> +++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.h
> @@ -68,8 +68,6 @@ void rockchip_drm_atomic_work(struct work_struct *work);
>  int rockchip_register_crtc_funcs(struct drm_crtc *crtc,
>  				 const struct rockchip_crtc_funcs *crtc_funcs);
>  void rockchip_unregister_crtc_funcs(struct drm_crtc *crtc);
> -int rockchip_drm_crtc_mode_config(struct drm_crtc *crtc, int connector_type,
> -				  int out_mode);
>  int rockchip_drm_dma_attach_device(struct drm_device *drm_dev,
>  				   struct device *dev);
>  void rockchip_drm_dma_detach_device(struct drm_device *drm_dev,
> diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
> index a619f12..1a611cf 100644
> --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
> +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
> @@ -818,38 +818,6 @@ static const struct drm_plane_funcs vop_plane_funcs = {
>  	.atomic_destroy_state = vop_atomic_plane_destroy_state,
>  };
>  
> -int rockchip_drm_crtc_mode_config(struct drm_crtc *crtc,
> -				  int connector_type,
> -				  int out_mode)
> -{
> -	struct vop *vop = to_vop(crtc);
> -
> -	if (WARN_ON(!vop->is_enabled))
> -		return -EINVAL;
> -
> -	switch (connector_type) {
> -	case DRM_MODE_CONNECTOR_LVDS:
> -		VOP_CTRL_SET(vop, rgb_en, 1);
> -		break;
> -	case DRM_MODE_CONNECTOR_eDP:
> -		VOP_CTRL_SET(vop, edp_en, 1);
> -		break;
> -	case DRM_MODE_CONNECTOR_HDMIA:
> -		VOP_CTRL_SET(vop, hdmi_en, 1);
> -		break;
> -	case DRM_MODE_CONNECTOR_DSI:
> -		VOP_CTRL_SET(vop, mipi_en, 1);
> -		break;
> -	default:
> -		DRM_ERROR("unsupport connector_type[%d]\n", connector_type);
> -		return -EINVAL;
> -	};
> -	VOP_CTRL_SET(vop, out_mode, out_mode);
> -
> -	return 0;
> -}
> -EXPORT_SYMBOL_GPL(rockchip_drm_crtc_mode_config);
> -
>  static int vop_crtc_enable_vblank(struct drm_crtc *crtc)
>  {
>  	struct vop *vop = to_vop(crtc);
> @@ -943,6 +911,8 @@ static void vop_crtc_enable(struct drm_crtc *crtc)
>  	u16 vact_st = adjusted_mode->vtotal - adjusted_mode->vsync_start;
>  	u16 vact_end = vact_st + vdisplay;
>  	uint32_t val;
> +	int type = ROCKCHIP_OUT_MODE_TYPE(adjusted_mode->private_flags);
> +	int out_mode = ROCKCHIP_OUT_MODE(adjusted_mode->private_flags);
>  
>  	vop_enable(crtc);
>  	/*
> @@ -985,6 +955,23 @@ static void vop_crtc_enable(struct drm_crtc *crtc)
>  	val |= (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC) ? 0 : 1;
>  	val |= (adjusted_mode->flags & DRM_MODE_FLAG_NVSYNC) ? 0 : (1 << 1);
>  	VOP_CTRL_SET(vop, pin_pol, val);
> +	switch (type) {
> +	case DRM_MODE_CONNECTOR_LVDS:
> +		VOP_CTRL_SET(vop, rgb_en, 1);
> +		break;
> +	case DRM_MODE_CONNECTOR_eDP:
> +		VOP_CTRL_SET(vop, edp_en, 1);
> +		break;
> +	case DRM_MODE_CONNECTOR_HDMIA:
> +		VOP_CTRL_SET(vop, hdmi_en, 1);
> +		break;
> +	case DRM_MODE_CONNECTOR_DSI:
> +		VOP_CTRL_SET(vop, mipi_en, 1);
> +		break;
> +	default:
> +		DRM_ERROR("unsupport connector_type[%d]\n", type);
> +	}
> +	VOP_CTRL_SET(vop, out_mode, out_mode);
>  
>  	VOP_CTRL_SET(vop, htotal_pw, (htotal << 16) | hsync_len);
>  	val = hact_st << 16;
> diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.h b/drivers/gpu/drm/rockchip/rockchip_drm_vop.h
> index 071ff0b..4c63a66 100644
> --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.h
> +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.h
> @@ -183,6 +183,12 @@ struct vop_data {
>  /* for use special outface */
>  #define ROCKCHIP_OUT_MODE_AAAA	15
>  
> +#define ROCKCHIP_OUT_MODE_TYPE(x)	((x) >> 16)
> +#define ROCKCHIP_OUT_MODE(x)		((x) & 0xffff)
> +#define ROCKCHIP_DSP_MODE(type, mode) \
> +		((DRM_MODE_CONNECTOR_##type << 16) | \
> +		 (ROCKCHIP_OUT_MODE_##mode & 0xffff))
> +
>  enum alpha_mode {
>  	ALPHA_STRAIGHT,
>  	ALPHA_INVERSE,



More information about the linux-arm-kernel mailing list