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From: Neil Armstrong <narmstrong@baylibre.com>
To: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>,
	dri-devel@lists.freedesktop.org
Cc: linux-renesas-soc@vger.kernel.org,
	"Andrzej Hajda" <a.hajda@samsung.com>,
	"Jernej Skrabec" <jernej.skrabec@siol.net>,
	"Jonas Karlman" <jonas@kwiboo.se>,
	"Sam Ravnborg" <sam@ravnborg.org>,
	"Kieran Bingham" <kieran.bingham@ideasonboard.com>,
	"Philipp Zabel" <p.zabel@pengutronix.de>,
	"Sandy Huang" <hjc@rock-chips.com>,
	"Heiko Stübner" <heiko@sntech.de>,
	"Maxime Ripard" <mripard@kernel.org>,
	"Chen-Yu Tsai" <wens@csie.org>,
	linux-amlogic@lists.infradead.org
Subject: Re: [PATCH 11/27] drm: bridge: dw-hdmi: Pass private data pointer to .mode_valid()
Date: Tue, 26 May 2020 11:44:37 +0200	[thread overview]
Message-ID: <ba4aff85-56f1-42b0-8049-ed3ab5eb5559@baylibre.com> (raw)
In-Reply-To: <20200526011505.31884-12-laurent.pinchart+renesas@ideasonboard.com>

On 26/05/2020 03:14, Laurent Pinchart wrote:
> Platform glue drivers for dw_hdmi may need to access device-specific
> data from their .mode_valid() implementation. They currently have no
> clean way to do so, and one driver hacks around it by accessing the
> dev_private data of the drm_device retrieved from the connector.
> 
> Add a priv_data void pointer to the dw_hdmi_plat_data structure, and
> pass it to the .mode_valid() function.
> 
> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
> ---
>  drivers/gpu/drm/bridge/synopsys/dw-hdmi.c   |  6 ++++--
>  drivers/gpu/drm/imx/dw_hdmi-imx.c           |  6 ++++--
>  drivers/gpu/drm/meson/meson_dw_hdmi.c       |  3 ++-
>  drivers/gpu/drm/rcar-du/rcar_dw_hdmi.c      |  3 ++-
>  drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c |  3 ++-
>  drivers/gpu/drm/sun4i/sun8i_dw_hdmi.c       |  6 ++++--
>  drivers/gpu/drm/sun4i/sun8i_dw_hdmi.h       |  3 ++-
>  include/drm/bridge/dw_hdmi.h                | 14 ++++++++++++--
>  8 files changed, 32 insertions(+), 12 deletions(-)
> 
> diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
> index b535354150db..2b3f203cf467 100644
> --- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
> +++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
> @@ -2771,6 +2771,7 @@ dw_hdmi_bridge_mode_valid(struct drm_bridge *bridge,
>  			  const struct drm_display_mode *mode)
>  {
>  	struct dw_hdmi *hdmi = bridge->driver_private;
> +	const struct dw_hdmi_plat_data *pdata = hdmi->plat_data;
>  	struct drm_connector *connector = &hdmi->connector;
>  	enum drm_mode_status mode_status = MODE_OK;
>  
> @@ -2778,8 +2779,9 @@ dw_hdmi_bridge_mode_valid(struct drm_bridge *bridge,
>  	if (mode->flags & DRM_MODE_FLAG_DBLCLK)
>  		return MODE_BAD;
>  
> -	if (hdmi->plat_data->mode_valid)
> -		mode_status = hdmi->plat_data->mode_valid(connector, mode);
> +	if (pdata->mode_valid)
> +		mode_status = pdata->mode_valid(hdmi, pdata->priv_data,
> +						connector, mode);
>  
>  	return mode_status;
>  }
> diff --git a/drivers/gpu/drm/imx/dw_hdmi-imx.c b/drivers/gpu/drm/imx/dw_hdmi-imx.c
> index ba4ca17fd4d8..95aed4666c95 100644
> --- a/drivers/gpu/drm/imx/dw_hdmi-imx.c
> +++ b/drivers/gpu/drm/imx/dw_hdmi-imx.c
> @@ -145,7 +145,8 @@ static const struct drm_encoder_helper_funcs dw_hdmi_imx_encoder_helper_funcs =
>  };
>  
>  static enum drm_mode_status
> -imx6q_hdmi_mode_valid(struct drm_connector *con,
> +imx6q_hdmi_mode_valid(struct dw_hdmi *hdmi, void *data,
> +		      struct drm_connector *con,
>  		      const struct drm_display_mode *mode)
>  {
>  	if (mode->clock < 13500)
> @@ -158,7 +159,8 @@ imx6q_hdmi_mode_valid(struct drm_connector *con,
>  }
>  
>  static enum drm_mode_status
> -imx6dl_hdmi_mode_valid(struct drm_connector *con,
> +imx6dl_hdmi_mode_valid(struct dw_hdmi *hdmi, void *data,
> +		       struct drm_connector *con,
>  		       const struct drm_display_mode *mode)
>  {
>  	if (mode->clock < 13500)
> diff --git a/drivers/gpu/drm/meson/meson_dw_hdmi.c b/drivers/gpu/drm/meson/meson_dw_hdmi.c
> index 5be963e9db05..5cc311c1b8e0 100644
> --- a/drivers/gpu/drm/meson/meson_dw_hdmi.c
> +++ b/drivers/gpu/drm/meson/meson_dw_hdmi.c
> @@ -630,7 +630,8 @@ static irqreturn_t dw_hdmi_top_thread_irq(int irq, void *dev_id)
>  }
>  
>  static enum drm_mode_status
> -dw_hdmi_mode_valid(struct drm_connector *connector,
> +dw_hdmi_mode_valid(struct dw_hdmi *hdmi, void *data,
> +		   struct drm_connector *connector,
>  		   const struct drm_display_mode *mode)
>  {
>  	struct meson_drm *priv = connector->dev->dev_private;
> diff --git a/drivers/gpu/drm/rcar-du/rcar_dw_hdmi.c b/drivers/gpu/drm/rcar-du/rcar_dw_hdmi.c
> index 452461dc96f2..4d837a4d302d 100644
> --- a/drivers/gpu/drm/rcar-du/rcar_dw_hdmi.c
> +++ b/drivers/gpu/drm/rcar-du/rcar_dw_hdmi.c
> @@ -38,7 +38,8 @@ static const struct rcar_hdmi_phy_params rcar_hdmi_phy_params[] = {
>  };
>  
>  static enum drm_mode_status
> -rcar_hdmi_mode_valid(struct drm_connector *connector,
> +rcar_hdmi_mode_valid(struct dw_hdmi *hdmi, void *data,
> +		     struct drm_connector *connector,
>  		     const struct drm_display_mode *mode)
>  {
>  	/*
> diff --git a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
> index 121aa8a63a76..d08f86783a28 100644
> --- a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
> +++ b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
> @@ -220,7 +220,8 @@ static int rockchip_hdmi_parse_dt(struct rockchip_hdmi *hdmi)
>  }
>  
>  static enum drm_mode_status
> -dw_hdmi_rockchip_mode_valid(struct drm_connector *connector,
> +dw_hdmi_rockchip_mode_valid(struct dw_hdmi *hdmi, void *data,
> +			    struct drm_connector *connector,
>  			    const struct drm_display_mode *mode)
>  {
>  	const struct dw_hdmi_mpll_config *mpll_cfg = rockchip_mpll_cfg;
> diff --git a/drivers/gpu/drm/sun4i/sun8i_dw_hdmi.c b/drivers/gpu/drm/sun4i/sun8i_dw_hdmi.c
> index 972682bb8000..0a3637442ba6 100644
> --- a/drivers/gpu/drm/sun4i/sun8i_dw_hdmi.c
> +++ b/drivers/gpu/drm/sun4i/sun8i_dw_hdmi.c
> @@ -31,7 +31,8 @@ sun8i_dw_hdmi_encoder_helper_funcs = {
>  };
>  
>  static enum drm_mode_status
> -sun8i_dw_hdmi_mode_valid_a83t(struct drm_connector *connector,
> +sun8i_dw_hdmi_mode_valid_a83t(struct dw_hdmi *hdmi, void *data,
> +			      struct drm_connector *connector,
>  			      const struct drm_display_mode *mode)
>  {
>  	if (mode->clock > 297000)
> @@ -41,7 +42,8 @@ sun8i_dw_hdmi_mode_valid_a83t(struct drm_connector *connector,
>  }
>  
>  static enum drm_mode_status
> -sun8i_dw_hdmi_mode_valid_h6(struct drm_connector *connector,
> +sun8i_dw_hdmi_mode_valid_h6(struct dw_hdmi *hdmi, void *data,
> +			    struct drm_connector *connector,
>  			    const struct drm_display_mode *mode)
>  {
>  	/*
> diff --git a/drivers/gpu/drm/sun4i/sun8i_dw_hdmi.h b/drivers/gpu/drm/sun4i/sun8i_dw_hdmi.h
> index 8e64945167e9..8587b8d2590e 100644
> --- a/drivers/gpu/drm/sun4i/sun8i_dw_hdmi.h
> +++ b/drivers/gpu/drm/sun4i/sun8i_dw_hdmi.h
> @@ -176,7 +176,8 @@ struct sun8i_hdmi_phy {
>  };
>  
>  struct sun8i_dw_hdmi_quirks {
> -	enum drm_mode_status (*mode_valid)(struct drm_connector *connector,
> +	enum drm_mode_status (*mode_valid)(struct dw_hdmi *hdmi, void *data,
> +					   struct drm_connector *connector,
>  					   const struct drm_display_mode *mode);
>  	unsigned int set_rate : 1;
>  	unsigned int use_drm_infoframe : 1;
> diff --git a/include/drm/bridge/dw_hdmi.h b/include/drm/bridge/dw_hdmi.h
> index 0b34a12c4a1c..66a811f75b91 100644
> --- a/include/drm/bridge/dw_hdmi.h
> +++ b/include/drm/bridge/dw_hdmi.h
> @@ -124,13 +124,23 @@ struct dw_hdmi_phy_ops {
>  
>  struct dw_hdmi_plat_data {
>  	struct regmap *regm;
> -	enum drm_mode_status (*mode_valid)(struct drm_connector *connector,
> -					   const struct drm_display_mode *mode);
> +
>  	unsigned long input_bus_format;
>  	unsigned long input_bus_encoding;
>  	bool use_drm_infoframe;
>  	bool ycbcr_420_allowed;
>  
> +	/*
> +	 * Private data passed to all the .mode_valid() and .configure_phy()
> +	 * callback functions.
> +	 */
> +	void *priv_data;
> +
> +	/* Platform-specific mode validation (optional). */
> +	enum drm_mode_status (*mode_valid)(struct dw_hdmi *hdmi, void *data,
> +					   struct drm_connector *connector,
> +					   const struct drm_display_mode *mode);
> +
>  	/* Vendor PHY support */
>  	const struct dw_hdmi_phy_ops *phy_ops;
>  	const char *phy_name;
> 

Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>

  reply	other threads:[~2020-05-26  9:44 UTC|newest]

Thread overview: 69+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-26  1:14 [PATCH 00/27] Converter R-Car DU to the DRM bridge connector helper Laurent Pinchart
2020-05-26  1:14 ` [PATCH 01/27] drm: bridge: adv7511: Split EDID read to a separate function Laurent Pinchart
2020-05-26  1:14 ` [PATCH 02/27] drm: bridge: adv7511: Split connector creation " Laurent Pinchart
2020-05-26  1:14 ` [PATCH 03/27] drm: bridge: adv7511: Implement bridge connector operations Laurent Pinchart
2020-06-21  8:25   ` Sam Ravnborg
2020-05-26  1:14 ` [PATCH 04/27] drm: bridge: adv7511: Make connector creation optional Laurent Pinchart
2020-05-26  1:14 ` [PATCH 05/27] drm: bridge: Return NULL on error from drm_bridge_get_edid() Laurent Pinchart
2020-06-21  8:26   ` Sam Ravnborg
2020-05-26  1:14 ` [PATCH 06/27] drm: bridge: simple-bridge: Delegate operations to next bridge Laurent Pinchart
2020-05-26  1:14 ` [PATCH 07/27] drm: bridge: simple-bridge: Make connector creation optional Laurent Pinchart
2020-05-26  1:14 ` [PATCH 08/27] drm: rcar-du: lvds: Convert to DRM panel bridge helper Laurent Pinchart
2020-05-26  1:14 ` [PATCH 09/27] drm: edid: Constify connector argument to infoframe functions Laurent Pinchart
2020-06-21  8:27   ` Sam Ravnborg
2020-05-26  1:14 ` [PATCH 10/27] drm: bridge: Pass drm_display_info to drm_bridge_funcs .mode_valid() Laurent Pinchart
2020-05-26 12:51   ` Neil Armstrong
2020-05-26 12:59   ` Boris Brezillon
2020-05-26 14:05   ` Guido Günther
2020-05-26  1:14 ` [PATCH 11/27] drm: bridge: dw-hdmi: Pass private data pointer to .mode_valid() Laurent Pinchart
2020-05-26  9:44   ` Neil Armstrong [this message]
2020-05-26  1:14 ` [PATCH 12/27] drm: bridge: dw-hdmi: Pass private data pointer to .configure_phy() Laurent Pinchart
2020-05-26  9:45   ` Neil Armstrong
2020-05-26  1:14 ` [PATCH 13/27] drm: bridge: dw-hdmi: Remove unused field from dw_hdmi_plat_data Laurent Pinchart
2020-05-26  9:45   ` Neil Armstrong
2020-05-26  1:14 ` [PATCH 14/27] drm: meson: dw-hdmi: Use dw_hdmi context to replace hack Laurent Pinchart
2020-05-26 12:32   ` Neil Armstrong
2020-05-26  1:14 ` [PATCH 15/27] drm: bridge: dw-hdmi: Pass drm_display_info to .mode_valid() Laurent Pinchart
2020-05-26  9:46   ` Neil Armstrong
2020-05-26  1:14 ` [PATCH 16/27] drm: bridge: dw-hdmi: Constify mode argument to dw_hdmi_phy_ops .init() Laurent Pinchart
2020-05-26  9:46   ` Neil Armstrong
2020-05-26  1:14 ` [PATCH 17/27] drm: bridge: dw-hdmi: Constify mode argument to internal functions Laurent Pinchart
2020-05-26  9:46   ` Neil Armstrong
2020-05-26  1:14 ` [PATCH 18/27] drm: bridge: dw-hdmi: Pass drm_display_info to dw_hdmi_support_scdc() Laurent Pinchart
2020-05-26  9:48   ` Neil Armstrong
2020-05-26  1:14 ` [PATCH 19/27] drm: bridge: dw-hdmi: Split connector creation to a separate function Laurent Pinchart
2020-05-26  9:49   ` Neil Armstrong
2020-05-26  1:14 ` [PATCH 20/27] drm: bridge: dw-hdmi: Store current connector in struct dw_hdmi Laurent Pinchart
2020-05-26 12:29   ` Neil Armstrong
2020-05-26  1:14 ` [PATCH 21/27] drm: bridge: dw-hdmi: Pass drm_connector to internal functions as needed Laurent Pinchart
2020-05-26 12:29   ` Neil Armstrong
2020-05-26  1:15 ` [PATCH 22/27] drm: bridge: dw-hdmi: Make connector creation optional Laurent Pinchart
2020-05-26 12:35   ` Neil Armstrong
2020-06-07  1:19     ` Laurent Pinchart
2020-05-26  1:15 ` [PATCH 23/27] drm: bridge: dw-hdmi: Attach to next bridge if available Laurent Pinchart
2020-05-26 12:50   ` Neil Armstrong
2020-05-26 14:23     ` Jonas Karlman
2020-06-07  1:24       ` Laurent Pinchart
2020-06-07  1:22     ` Laurent Pinchart
2020-05-26  1:15 ` [PATCH 24/27] drm: rcar-du: dw-hdmi: Set output port number Laurent Pinchart
2020-05-26  1:15 ` [PATCH 25/27] drm: rcar-du: Fix error handling in rcar_du_encoder_init() Laurent Pinchart
2020-05-26  1:15 ` [PATCH 26/27] drm: rcar-du: Use drm_bridge_connector_init() helper Laurent Pinchart
2020-05-26  1:15 ` [PATCH 27/27] drm: Add default modes for connectors in unknown state Laurent Pinchart
2020-06-21  8:40   ` Sam Ravnborg
2020-06-24  1:12     ` Laurent Pinchart
2020-06-24  7:23       ` Daniel Vetter
2020-06-24 15:24         ` Alex Deucher
2020-06-24 19:31           ` Daniel Vetter
2020-06-24 19:40             ` Alex Deucher
2020-06-25  7:56               ` Daniel Vetter
2020-06-25  7:57                 ` Daniel Vetter
2020-06-25 10:31                   ` Pekka Paalanen
2020-06-25 10:44                     ` Daniel Vetter
2020-06-26  8:59                       ` Pekka Paalanen
2020-06-26  9:25                         ` Daniel Stone
2020-06-26 13:35                           ` Daniel Vetter
2020-06-24 22:47         ` Laurent Pinchart
2020-06-23 18:55 ` [PATCH 00/27] Converter R-Car DU to the DRM bridge connector helper Sam Ravnborg
2020-06-25  8:48   ` Liu Ying
2020-06-27 19:55     ` Sam Ravnborg
2020-06-28  8:28       ` Laurent Pinchart

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