[PATCH v2 01/34] drm: convert many bridge drivers from devm_kzalloc() to devm_drm_bridge_alloc() API
Manikandan.M at microchip.com
Manikandan.M at microchip.com
Wed Apr 30 09:42:16 UTC 2025
On 25/04/25 12:29 am, Luca Ceresoli wrote:
> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
>
> devm_drm_bridge_alloc() is the new API to be used for allocating (and
> partially initializing) a private driver struct embedding a struct
> drm_bridge.
>
> For many drivers having a simple code flow in the probe function, this
> commit does a mass conversion automatically with the following semantic
> patch. The changes have been reviewed manually for correctness as well as
> to find any false positives.
>
> @@
> type T;
> identifier C;
> identifier BR;
> expression DEV;
> expression FUNCS;
> @@
> -T *C;
> +T *C;
> ...
> (
> -C = devm_kzalloc(DEV, ...);
> -if (!C)
> - return -ENOMEM;
> +C = devm_drm_bridge_alloc(DEV, T, BR, FUNCS);
> +if (IS_ERR(C))
> + return PTR_ERR(C);
> |
> -C = devm_kzalloc(DEV, ...);
> -if (!C)
> - return ERR_PTR(-ENOMEM);
> +C = devm_drm_bridge_alloc(DEV, T, BR, FUNCS);
> +if (IS_ERR(C))
> + return PTR_ERR(C);
> )
> ...
> -C->BR.funcs = FUNCS;
>
> Signed-off-by: Luca Ceresoli <luca.ceresoli at bootlin.com>
>
> ---
>
> Cc: Adam Ford <aford173 at gmail.com>
> Cc: Adrien Grassein <adrien.grassein at gmail.com>
> Cc: Aleksandr Mishin <amishin at t-argos.ru>
> Cc: Andy Yan <andy.yan at rock-chips.com>
> Cc: AngeloGioacchino Del Regno <angelogioacchino.delregno at collabora.com>
> Cc: Benson Leung <bleung at chromium.org>
> Cc: Biju Das <biju.das.jz at bp.renesas.com>
> Cc: Christoph Fritz <chf.fritz at googlemail.com>
> Cc: Cristian Ciocaltea <cristian.ciocaltea at collabora.com>
> Cc: Detlev Casanova <detlev.casanova at collabora.com>
> Cc: Dharma Balasubiramani <dharma.b at microchip.com>
> Cc: Guenter Roeck <groeck at chromium.org>
> Cc: Heiko Stuebner <heiko at sntech.de>
> Cc: Jani Nikula <jani.nikula at intel.com>
> Cc: Janne Grunau <j at jannau.net>
> Cc: Jerome Brunet <jbrunet at baylibre.com>
> Cc: Jesse Van Gavere <jesseevg at gmail.com>
> Cc: Kevin Hilman <khilman at baylibre.com>
> Cc: Kieran Bingham <kieran.bingham+renesas at ideasonboard.com>
> Cc: Liu Ying <victor.liu at nxp.com>
> Cc: Manikandan Muralidharan <manikandan.m at microchip.com>
> Cc: Martin Blumenstingl <martin.blumenstingl at googlemail.com>
> Cc: Matthias Brugger <matthias.bgg at gmail.com>
> Cc: Philipp Zabel <p.zabel at pengutronix.de>
> Cc: Phong LE <ple at baylibre.com>
> Cc: Sasha Finkelstein <fnkl.kernel at gmail.com>
> Cc: Sugar Zhang <sugar.zhang at rock-chips.com>
> Cc: Sui Jingfeng <sui.jingfeng at linux.dev>
> Cc: Tomi Valkeinen <tomi.valkeinen+renesas at ideasonboard.com>
> Cc: Vitalii Mordan <mordan at ispras.ru>
>
> Changed in v2:
> - added missing PTR_ERR() in the second spatch alternative
> ---
> drivers/gpu/drm/adp/adp-mipi.c | 8 ++++----
> drivers/gpu/drm/bridge/adv7511/adv7511_drv.c | 9 ++++-----
> drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c | 9 ++++-----
> drivers/gpu/drm/bridge/aux-bridge.c | 9 ++++-----
> drivers/gpu/drm/bridge/aux-hpd-bridge.c | 9 +++++----
> drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c | 8 ++++----
> drivers/gpu/drm/bridge/chipone-icn6211.c | 9 ++++-----
> drivers/gpu/drm/bridge/chrontel-ch7033.c | 8 ++++----
> drivers/gpu/drm/bridge/cros-ec-anx7688.c | 9 ++++-----
> drivers/gpu/drm/bridge/fsl-ldb.c | 7 +++----
> drivers/gpu/drm/bridge/imx/imx-legacy-bridge.c | 9 ++++-----
> drivers/gpu/drm/bridge/imx/imx8mp-hdmi-pvi.c | 10 ++++------
> drivers/gpu/drm/bridge/imx/imx8qxp-pixel-link.c | 8 ++++----
> drivers/gpu/drm/bridge/imx/imx8qxp-pxl2dpi.c | 8 ++++----
> drivers/gpu/drm/bridge/ite-it6263.c | 9 ++++-----
> drivers/gpu/drm/bridge/ite-it6505.c | 9 ++++-----
> drivers/gpu/drm/bridge/ite-it66121.c | 9 ++++-----
> drivers/gpu/drm/bridge/lontium-lt8912b.c | 9 ++++-----
> drivers/gpu/drm/bridge/lontium-lt9211.c | 8 +++-----
> drivers/gpu/drm/bridge/lontium-lt9611.c | 9 ++++-----
> drivers/gpu/drm/bridge/lvds-codec.c | 9 ++++-----
> drivers/gpu/drm/bridge/microchip-lvds.c | 8 ++++----
> drivers/gpu/drm/bridge/nwl-dsi.c | 8 ++++----
> drivers/gpu/drm/bridge/parade-ps8622.c | 9 ++++-----
> drivers/gpu/drm/bridge/parade-ps8640.c | 9 ++++-----
> drivers/gpu/drm/bridge/sii9234.c | 9 ++++-----
> drivers/gpu/drm/bridge/sil-sii8620.c | 9 ++++-----
> drivers/gpu/drm/bridge/simple-bridge.c | 10 ++++------
> drivers/gpu/drm/bridge/synopsys/dw-hdmi-qp.c | 8 ++++----
> drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c | 8 ++++----
> drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi2.c | 8 ++++----
> drivers/gpu/drm/bridge/tc358762.c | 9 ++++-----
> drivers/gpu/drm/bridge/tc358764.c | 9 ++++-----
> drivers/gpu/drm/bridge/tc358768.c | 9 ++++-----
> drivers/gpu/drm/bridge/tc358775.c | 9 ++++-----
> drivers/gpu/drm/bridge/thc63lvd1024.c | 8 ++++----
> drivers/gpu/drm/bridge/ti-dlpc3433.c | 9 ++++-----
> drivers/gpu/drm/bridge/ti-tdp158.c | 8 ++++----
> drivers/gpu/drm/bridge/ti-tfp410.c | 9 ++++-----
> drivers/gpu/drm/bridge/ti-tpd12s015.c | 9 ++++-----
> drivers/gpu/drm/mediatek/mtk_dp.c | 9 ++++-----
> drivers/gpu/drm/mediatek/mtk_dpi.c | 9 ++++-----
> drivers/gpu/drm/mediatek/mtk_dsi.c | 9 ++++-----
> drivers/gpu/drm/mediatek/mtk_hdmi.c | 9 ++++-----
> drivers/gpu/drm/meson/meson_encoder_cvbs.c | 12 ++++++------
> drivers/gpu/drm/meson/meson_encoder_dsi.c | 12 ++++++------
> drivers/gpu/drm/meson/meson_encoder_hdmi.c | 12 ++++++------
> drivers/gpu/drm/renesas/rcar-du/rcar_lvds.c | 9 ++++-----
> drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c | 10 ++++------
> 49 files changed, 201 insertions(+), 237 deletions(-)
>
[...]
> diff --git a/drivers/gpu/drm/bridge/microchip-lvds.c b/drivers/gpu/drm/bridge/microchip-lvds.c
> index 1d4ae0097df847d9f93c79eecff0c4587ae331ba..9f4ff82bc6b49010f8727da3b367f5a744a28edc 100644
> --- a/drivers/gpu/drm/bridge/microchip-lvds.c
> +++ b/drivers/gpu/drm/bridge/microchip-lvds.c
> @@ -157,9 +157,10 @@ static int mchp_lvds_probe(struct platform_device *pdev)
> if (!dev->of_node)
> return -ENODEV;
>
> - lvds = devm_kzalloc(&pdev->dev, sizeof(*lvds), GFP_KERNEL);
> - if (!lvds)
> - return -ENOMEM;
> + lvds = devm_drm_bridge_alloc(&pdev->dev, struct mchp_lvds, bridge,
> + &mchp_lvds_bridge_funcs);
> + if (IS_ERR(lvds))
> + return PTR_ERR(lvds);
>
> lvds->dev = dev;
>
> @@ -192,7 +193,6 @@ static int mchp_lvds_probe(struct platform_device *pdev)
>
> lvds->bridge.of_node = dev->of_node;
> lvds->bridge.type = DRM_MODE_CONNECTOR_LVDS;
> - lvds->bridge.funcs = &mchp_lvds_bridge_funcs;
>
> dev_set_drvdata(dev, lvds);
> ret = devm_pm_runtime_enable(dev);
Reviewed-by: Manikandan Muralidharan <manikandan.m at microchip.com>
--
Thanks and Regards,
Manikandan M.
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