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([2a01:e35:2ec0:82b0:acf8:18a8:b3a5:a17b]) by smtp.gmail.com with ESMTPSA id x186sm13039144wmg.8.2020.05.26.02.44.38 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 26 May 2020 02:44:39 -0700 (PDT) Subject: Re: [PATCH 11/27] drm: bridge: dw-hdmi: Pass private data pointer to .mode_valid() To: Laurent Pinchart , dri-devel@lists.freedesktop.org Cc: linux-renesas-soc@vger.kernel.org, Andrzej Hajda , Jernej Skrabec , Jonas Karlman , Sam Ravnborg , Kieran Bingham , Philipp Zabel , Sandy Huang , =?UTF-8?Q?Heiko_St=c3=bcbner?= , Maxime Ripard , Chen-Yu Tsai , linux-amlogic@lists.infradead.org References: <20200526011505.31884-1-laurent.pinchart+renesas@ideasonboard.com> <20200526011505.31884-12-laurent.pinchart+renesas@ideasonboard.com> From: Neil Armstrong Autocrypt: addr=narmstrong@baylibre.com; prefer-encrypt=mutual; keydata= xsBNBE1ZBs8BCAD78xVLsXPwV/2qQx2FaO/7mhWL0Qodw8UcQJnkrWmgTFRobtTWxuRx8WWP GTjuhvbleoQ5Cxjr+v+1ARGCH46MxFP5DwauzPekwJUD5QKZlaw/bURTLmS2id5wWi3lqVH4 BVF2WzvGyyeV1o4RTCYDnZ9VLLylJ9bneEaIs/7cjCEbipGGFlfIML3sfqnIvMAxIMZrvcl9 qPV2k+KQ7q+aXavU5W+yLNn7QtXUB530Zlk/d2ETgzQ5FLYYnUDAaRl+8JUTjc0CNOTpCeik 80TZcE6f8M76Xa6yU8VcNko94Ck7iB4vj70q76P/J7kt98hklrr85/3NU3oti3nrIHmHABEB AAHNKE5laWwgQXJtc3Ryb25nIDxuYXJtc3Ryb25nQGJheWxpYnJlLmNvbT7CwHsEEwEKACUC GyMGCwkIBwMCBhUIAgkKCwQWAgMBAh4BAheABQJXDO2CAhkBAAoJEBaat7Gkz/iubGIH/iyk RqvgB62oKOFlgOTYCMkYpm2aAOZZLf6VKHKc7DoVwuUkjHfIRXdslbrxi4pk5VKU6ZP9AKsN NtMZntB8WrBTtkAZfZbTF7850uwd3eU5cN/7N1Q6g0JQihE7w4GlIkEpQ8vwSg5W7hkx3yQ6 2YzrUZh/b7QThXbNZ7xOeSEms014QXazx8+txR7jrGF3dYxBsCkotO/8DNtZ1R+aUvRfpKg5 ZgABTC0LmAQnuUUf2PHcKFAHZo5KrdO+tyfL+LgTUXIXkK+tenkLsAJ0cagz1EZ5gntuheLD YJuzS4zN+1Asmb9kVKxhjSQOcIh6g2tw7vaYJgL/OzJtZi6JlIXOwU0EVid/pAEQAND7AFhr 5faf/EhDP9FSgYd/zgmb7JOpFPje3uw7jz9wFb28Cf0Y3CcncdElYoBNbRlesKvjQRL8mozV 9RN+IUMHdUx1akR/A4BPXNdL7StfzKWOCxZHVS+rIQ/fE3Qz/jRmT6t2ZkpplLxVBpdu95qJ YwSZjuwFXdC+A7MHtQXYi3UfCgKiflj4+/ITcKC6EF32KrmIRqamQwiRsDcUUKlAUjkCLcHL CQvNsDdm2cxdHxC32AVm3Je8VCsH7/qEPMQ+cEZk47HOR3+Ihfn1LEG5LfwsyWE8/JxsU2a1 q44LQM2lcK/0AKAL20XDd7ERH/FCBKkNVzi+svYJpyvCZCnWT0TRb72mT+XxLWNwfHTeGALE +1As4jIS72IglvbtONxc2OIid3tR5rX3k2V0iud0P7Hnz/JTdfvSpVj55ZurOl2XAXUpGbq5 XRk5CESFuLQV8oqCxgWAEgFyEapI4GwJsvfl/2Er8kLoucYO1Id4mz6N33+omPhaoXfHyLSy dxD+CzNJqN2GdavGtobdvv/2V0wukqj86iKF8toLG2/Fia3DxMaGUxqI7GMOuiGZjXPt/et/ qeOySghdQ7Sdpu6fWc8CJXV2mOV6DrSzc6ZVB4SmvdoruBHWWOR6YnMz01ShFE49pPucyU1h Av4jC62El3pdCrDOnWNFMYbbon3vABEBAAHCwn4EGAECAAkFAlYnf6QCGwICKQkQFpq3saTP +K7BXSAEGQECAAYFAlYnf6QACgkQd9zb2sjISdGToxAAkOjSfGxp0ulgHboUAtmxaU3viucV e2Hl1BVDtKSKmbIVZmEUvx9D06IijFaEzqtKD34LXD6fjl4HIyDZvwfeaZCbJbO10j3k7FJE QrBtpdVqkJxme/nYlGOVzcOiKIepNkwvnHVnuVDVPcXyj2wqtsU7VZDDX41z3X4xTQwY3SO1 9nRO+f+i4RmtJcITgregMa2PcB0LvrjJlWroI+KAKCzoTHzSTpCXMJ1U/dEqyc87bFBdc+DI k8mWkPxsccdbs4t+hH0NoE3Kal9xtAl56RCtO/KgBLAQ5M8oToJVatxAjO1SnRYVN1EaAwrR xkHdd97qw6nbg9BMcAoa2NMc0/9MeiaQfbgW6b0reIz/haHhXZ6oYSCl15Knkr4t1o3I2Bqr Mw623gdiTzotgtId8VfLB2Vsatj35OqIn5lVbi2ua6I0gkI6S7xJhqeyrfhDNgzTHdQVHB9/ 7jnM0ERXNy1Ket6aDWZWCvM59dTyu37g3VvYzGis8XzrX1oLBU/tTXqo1IFqqIAmvh7lI0Se gCrXz7UanxCwUbQBFjzGn6pooEHJYRLuVGLdBuoApl/I4dLqCZij2AGa4CFzrn9W0cwm3HCO lR43gFyz0dSkMwNUd195FrvfAz7Bjmmi19DnORKnQmlvGe/9xEEfr5zjey1N9+mt3//geDP6 clwKBkq0JggA+RTEAELzkgPYKJ3NutoStUAKZGiLOFMpHY6KpItbbHjF2ZKIU1whaRYkHpB2 uLQXOzZ0d7x60PUdhqG3VmFnzXSztA4vsnDKk7x2xw0pMSTKhMafpxaPQJf494/jGnwBHyi3 h3QGG1RjfhQ/OMTX/HKtAUB2ct3Q8/jBfF0hS5GzT6dYtj0Ci7+8LUsB2VoayhNXMnaBfh+Q pAhaFfRZWTjUFIV4MpDdFDame7PB50s73gF/pfQbjw5Wxtes/0FnqydfId95s+eej+17ldGp lMv1ok7K0H/WJSdr7UwDAHEYU++p4RRTJP6DHWXcByVlpNQ4SSAiivmWiwOt490+Ac7ATQRN WQbPAQgAvIoM384ZRFocFXPCOBir5m2J+96R2tI2XxMgMfyDXGJwFilBNs+fpttJlt2995A8 0JwPj8SFdm6FBcxygmxBBCc7i/BVQuY8aC0Z/w9Vzt3Eo561r6pSHr5JGHe8hwBQUcNPd/9l 2ynP57YTSE9XaGJK8gIuTXWo7pzIkTXfN40Wh5jeCCspj4jNsWiYhljjIbrEj300g8RUT2U0 FcEoiV7AjJWWQ5pi8lZJX6nmB0lc69Jw03V6mblgeZ/1oTZmOepkagwy2zLDXxihf0GowUif GphBDeP8elWBNK+ajl5rmpAMNRoKxpN/xR4NzBg62AjyIvigdywa1RehSTfccQARAQABwsBf BBgBAgAJBQJNWQbPAhsMAAoJEBaat7Gkz/iuteIH+wZuRDqK0ysAh+czshtG6JJlLW6eXJJR Vi7dIPpgFic2LcbkSlvB8E25Pcfz/+tW+04Urg4PxxFiTFdFCZO+prfd4Mge7/OvUcwoSub7 ZIPo8726ZF5/xXzajahoIu9/hZ4iywWPAHRvprXaim5E/vKjcTeBMJIqZtS4u/UK3EpAX59R XVxVpM8zJPbk535ELUr6I5HQXnihQm8l6rt9TNuf8p2WEDxc8bPAZHLjNyw9a/CdeB97m2Tr zR8QplXA5kogS4kLe/7/JmlDMO8Zgm9vKLHSUeesLOrjdZ59EcjldNNBszRZQgEhwaarfz46 BSwxi7g3Mu7u5kUByanqHyA= Organization: Baylibre Message-ID: Date: Tue, 26 May 2020 11:44:37 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.7.0 MIME-Version: 1.0 In-Reply-To: <20200526011505.31884-12-laurent.pinchart+renesas@ideasonboard.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-renesas-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org 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 > --- > 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