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Message-ID: <Y8q0tN88QGKcIfw/@e110455-lin.cambridge.arm.com>
Date: Fri, 20 Jan 2023 15:36:50 +0000
From: Liviu Dudau <liviu.dudau@....com>
To: Sean Anderson <sean.anderson@...o.com>
Cc: David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>,
Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
Maxime Ripard <mripard@...nel.org>,
Thomas Zimmermann <tzimmermann@...e.de>,
dri-devel@...ts.freedesktop.org,
Xinliang Liu <xinliang.liu@...aro.org>,
linux-mips@...r.kernel.org, Paul Cercueil <paul@...pouillou.net>,
John Stultz <jstultz@...gle.com>,
Mihail Atanassov <mihail.atanassov@....com>,
Samuel Holland <samuel@...lland.org>,
Russell King <linux@...linux.org.uk>,
Jernej Skrabec <jernej.skrabec@...il.com>,
Chen-Yu Tsai <wens@...e.org>,
Mali DP Maintainers <malidp@...s.arm.com>,
linux-arm-msm@...r.kernel.org,
Alain Volmat <alain.volmat@...s.st.com>,
Xinwei Kong <kong.kongxinwei@...ilicon.com>,
linux-sunxi@...ts.linux.dev,
Chun-Kuang Hu <chunkuang.hu@...nel.org>,
Chen Feng <puck.chen@...ilicon.com>,
Abhinav Kumar <quic_abhinavk@...cinc.com>,
etnaviv@...ts.freedesktop.org, linux-mediatek@...ts.infradead.org,
Matthias Brugger <matthias.bgg@...il.com>,
Sean Paul <sean@...rly.run>,
linux-arm-kernel@...ts.infradead.org,
Tomi Valkeinen <tomba@...nel.org>,
freedreno@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
Tian Tao <tiantao6@...ilicon.com>,
Jyri Sarha <jyri.sarha@....fi>
Subject: Re: [PATCH v3 3/3] drm: Convert users of drm_of_component_match_add
to component_match_add_of
On Thu, Jan 19, 2023 at 02:10:39PM -0500, Sean Anderson wrote:
> Every user of this function either uses component_compare_of or
> something equivalent. Most of them immediately put the device node as
> well. Convert these users to component_match_add_of and remove
> drm_of_component_match_add.
>
> Signed-off-by: Sean Anderson <sean.anderson@...o.com>
> Acked-by: Jyri Sarha <jyri.sarhaı@iki.fi>
> Tested-by: Jyri Sarha <jyri.sarha@....fi>
> ---
>
> (no changes since v1)
>
> .../gpu/drm/arm/display/komeda/komeda_drv.c | 6 ++--
> drivers/gpu/drm/arm/hdlcd_drv.c | 9 +-----
> drivers/gpu/drm/arm/malidp_drv.c | 11 +------
> drivers/gpu/drm/armada/armada_drv.c | 10 ++++---
> drivers/gpu/drm/drm_of.c | 29 +++----------------
> drivers/gpu/drm/etnaviv/etnaviv_drv.c | 4 +--
> .../gpu/drm/hisilicon/kirin/kirin_drm_drv.c | 3 +-
> drivers/gpu/drm/ingenic/ingenic-drm-drv.c | 3 +-
> drivers/gpu/drm/mediatek/mtk_drm_drv.c | 4 +--
> drivers/gpu/drm/msm/msm_drv.c | 14 ++++-----
> drivers/gpu/drm/sti/sti_drv.c | 3 +-
> drivers/gpu/drm/sun4i/sun4i_drv.c | 3 +-
> drivers/gpu/drm/tilcdc/tilcdc_external.c | 10 ++-----
> include/drm/drm_of.h | 12 --------
> 14 files changed, 33 insertions(+), 88 deletions(-)
>
> diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_drv.c b/drivers/gpu/drm/arm/display/komeda/komeda_drv.c
> index 3f4e719eebd8..e3bfc72c378f 100644
> --- a/drivers/gpu/drm/arm/display/komeda/komeda_drv.c
> +++ b/drivers/gpu/drm/arm/display/komeda/komeda_drv.c
> @@ -103,10 +103,8 @@ static void komeda_add_slave(struct device *master,
> struct device_node *remote;
>
> remote = of_graph_get_remote_node(np, port, endpoint);
> - if (remote) {
> - drm_of_component_match_add(master, match, component_compare_of, remote);
> - of_node_put(remote);
> - }
> + if (remote)
> + component_match_add_of(master, match, remote);
> }
>
> static int komeda_platform_probe(struct platform_device *pdev)
> diff --git a/drivers/gpu/drm/arm/hdlcd_drv.c b/drivers/gpu/drm/arm/hdlcd_drv.c
> index e3507dd6f82a..5f760bb66af4 100644
> --- a/drivers/gpu/drm/arm/hdlcd_drv.c
> +++ b/drivers/gpu/drm/arm/hdlcd_drv.c
> @@ -347,11 +347,6 @@ static const struct component_master_ops hdlcd_master_ops = {
> .unbind = hdlcd_drm_unbind,
> };
>
> -static int compare_dev(struct device *dev, void *data)
> -{
> - return dev->of_node == data;
> -}
> -
> static int hdlcd_probe(struct platform_device *pdev)
> {
> struct device_node *port;
> @@ -362,9 +357,7 @@ static int hdlcd_probe(struct platform_device *pdev)
> if (!port)
> return -ENODEV;
>
> - drm_of_component_match_add(&pdev->dev, &match, compare_dev, port);
> - of_node_put(port);
> -
> + component_match_add_of(&pdev->dev, &match, port);
> return component_master_add_with_match(&pdev->dev, &hdlcd_master_ops,
> match);
> }
> diff --git a/drivers/gpu/drm/arm/malidp_drv.c b/drivers/gpu/drm/arm/malidp_drv.c
> index 589c1c66a6dc..3a49c29ba5b8 100644
> --- a/drivers/gpu/drm/arm/malidp_drv.c
> +++ b/drivers/gpu/drm/arm/malidp_drv.c
> @@ -909,13 +909,6 @@ static const struct component_master_ops malidp_master_ops = {
> .unbind = malidp_unbind,
> };
>
> -static int malidp_compare_dev(struct device *dev, void *data)
> -{
> - struct device_node *np = data;
> -
> - return dev->of_node == np;
> -}
> -
> static int malidp_platform_probe(struct platform_device *pdev)
> {
> struct device_node *port;
> @@ -929,9 +922,7 @@ static int malidp_platform_probe(struct platform_device *pdev)
> if (!port)
> return -ENODEV;
>
> - drm_of_component_match_add(&pdev->dev, &match, malidp_compare_dev,
> - port);
> - of_node_put(port);
> + component_match_add_of(&pdev->dev, &match, port);
> return component_master_add_with_match(&pdev->dev, &malidp_master_ops,
> match);
> }
For komeda, mali_dp and hdlcd: Acked-by: Liviu Dudau <liviu.dudau@....com>
Best regards,
Liviu
> diff --git a/drivers/gpu/drm/armada/armada_drv.c b/drivers/gpu/drm/armada/armada_drv.c
> index 0643887800b4..c0211ad7a45d 100644
> --- a/drivers/gpu/drm/armada/armada_drv.c
> +++ b/drivers/gpu/drm/armada/armada_drv.c
> @@ -184,10 +184,12 @@ static void armada_add_endpoints(struct device *dev,
>
> for_each_endpoint_of_node(dev_node, ep) {
> remote = of_graph_get_remote_port_parent(ep);
> - if (remote && of_device_is_available(remote))
> - drm_of_component_match_add(dev, match, component_compare_of,
> - remote);
> - of_node_put(remote);
> + if (remote) {
> + if (of_device_is_available(remote))
> + component_match_add_of(dev, match, remote);
> + else
> + of_node_put(remote);
> + }
> }
> }
>
> diff --git a/drivers/gpu/drm/drm_of.c b/drivers/gpu/drm/drm_of.c
> index 7bbcb999bb75..0a474729ddf6 100644
> --- a/drivers/gpu/drm/drm_of.c
> +++ b/drivers/gpu/drm/drm_of.c
> @@ -78,24 +78,6 @@ uint32_t drm_of_find_possible_crtcs(struct drm_device *dev,
> }
> EXPORT_SYMBOL(drm_of_find_possible_crtcs);
>
> -/**
> - * drm_of_component_match_add - Add a component helper OF node match rule
> - * @master: master device
> - * @matchptr: component match pointer
> - * @compare: compare function used for matching component
> - * @node: of_node
> - */
> -void drm_of_component_match_add(struct device *master,
> - struct component_match **matchptr,
> - int (*compare)(struct device *, void *),
> - struct device_node *node)
> -{
> - of_node_get(node);
> - component_match_add_release(master, matchptr, component_release_of,
> - compare, node);
> -}
> -EXPORT_SYMBOL_GPL(drm_of_component_match_add);
> -
> /**
> * drm_of_component_probe - Generic probe function for a component based master
> * @dev: master device containing the OF node
> @@ -130,10 +112,9 @@ int drm_of_component_probe(struct device *dev,
> break;
>
> if (of_device_is_available(port->parent))
> - drm_of_component_match_add(dev, &match, compare_of,
> - port);
> -
> - of_node_put(port);
> + component_match_add_of(dev, &match, port);
> + else
> + of_node_put(port);
> }
>
> if (i == 0) {
> @@ -171,9 +152,7 @@ int drm_of_component_probe(struct device *dev,
> continue;
> }
>
> - drm_of_component_match_add(dev, &match, compare_of,
> - remote);
> - of_node_put(remote);
> + component_match_add_of(dev, &match, remote);
> }
> of_node_put(port);
> }
> diff --git a/drivers/gpu/drm/etnaviv/etnaviv_drv.c b/drivers/gpu/drm/etnaviv/etnaviv_drv.c
> index 1d2b4fb4bcf8..4a0dba34a6e7 100644
> --- a/drivers/gpu/drm/etnaviv/etnaviv_drv.c
> +++ b/drivers/gpu/drm/etnaviv/etnaviv_drv.c
> @@ -590,8 +590,8 @@ static int etnaviv_pdev_probe(struct platform_device *pdev)
> if (!first_node)
> first_node = core_node;
>
> - drm_of_component_match_add(&pdev->dev, &match,
> - component_compare_of, core_node);
> + of_node_get(core_node);
> + component_match_add_of(&pdev->dev, &match, core_node);
> }
> } else {
> char **names = dev->platform_data;
> diff --git a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c
> index 9c5d49bf40c9..3ee277615c39 100644
> --- a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c
> +++ b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c
> @@ -273,8 +273,7 @@ static int kirin_drm_platform_probe(struct platform_device *pdev)
> if (!remote)
> return -ENODEV;
>
> - drm_of_component_match_add(dev, &match, component_compare_of, remote);
> - of_node_put(remote);
> + component_match_add_of(dev, &match, remote);
>
> return component_master_add_with_match(dev, &kirin_drm_ops, match);
> }
> diff --git a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
> index 3d5af44bf92d..d0c87175dec4 100644
> --- a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
> +++ b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
> @@ -1444,8 +1444,7 @@ static int ingenic_drm_probe(struct platform_device *pdev)
> if (!np)
> return ingenic_drm_bind(dev, false);
>
> - drm_of_component_match_add(dev, &match, component_compare_of, np);
> - of_node_put(np);
> + component_match_add_of(dev, &match, np);
>
> return component_master_add_with_match(dev, &ingenic_master_ops, match);
> }
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> index cd5b18ef7951..abead814bfdc 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> @@ -787,8 +787,8 @@ static int mtk_drm_probe(struct platform_device *pdev)
> comp_type == MTK_DSI) {
> dev_info(dev, "Adding component match for %pOF\n",
> node);
> - drm_of_component_match_add(dev, &match, component_compare_of,
> - node);
> + of_node_get(node);
> + component_match_add_of(dev, &match, node);
> }
>
> ret = mtk_ddp_comp_init(node, &private->ddp_comp[comp_id], comp_id);
> diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c
> index 8b0b0ac74a6f..8ccf57def955 100644
> --- a/drivers/gpu/drm/msm/msm_drv.c
> +++ b/drivers/gpu/drm/msm/msm_drv.c
> @@ -5,6 +5,7 @@
> * Author: Rob Clark <robdclark@...il.com>
> */
>
> +#include <linux/component.h>
> #include <linux/dma-mapping.h>
> #include <linux/fault-inject.h>
> #include <linux/kthread.h>
> @@ -1156,10 +1157,9 @@ static int add_components_mdp(struct device *master_dev,
> continue;
>
> if (of_device_is_available(intf))
> - drm_of_component_match_add(master_dev, matchptr,
> - component_compare_of, intf);
> -
> - of_node_put(intf);
> + component_match_add_of(master_dev, matchptr, intf);
> + else
> + of_node_put(intf);
> }
>
> return 0;
> @@ -1188,9 +1188,9 @@ static int add_gpu_components(struct device *dev,
> return 0;
>
> if (of_device_is_available(np))
> - drm_of_component_match_add(dev, matchptr, component_compare_of, np);
> -
> - of_node_put(np);
> + component_match_add_of(dev, matchptr, np);
> + else
> + of_node_put(np);
>
> return 0;
> }
> diff --git a/drivers/gpu/drm/sti/sti_drv.c b/drivers/gpu/drm/sti/sti_drv.c
> index ef6a4e63198f..e3aae4574c75 100644
> --- a/drivers/gpu/drm/sti/sti_drv.c
> +++ b/drivers/gpu/drm/sti/sti_drv.c
> @@ -238,8 +238,7 @@ static int sti_platform_probe(struct platform_device *pdev)
> child_np = of_get_next_available_child(node, NULL);
>
> while (child_np) {
> - drm_of_component_match_add(dev, &match, component_compare_of,
> - child_np);
> + component_match_add_of(dev, &match, child_np);
> child_np = of_get_next_available_child(node, child_np);
> }
>
> diff --git a/drivers/gpu/drm/sun4i/sun4i_drv.c b/drivers/gpu/drm/sun4i/sun4i_drv.c
> index cc94efbbf2d4..9b3ddd82f1be 100644
> --- a/drivers/gpu/drm/sun4i/sun4i_drv.c
> +++ b/drivers/gpu/drm/sun4i/sun4i_drv.c
> @@ -323,7 +323,8 @@ static int sun4i_drv_add_endpoints(struct device *dev,
> of_device_is_available(node))) {
> /* Add current component */
> DRM_DEBUG_DRIVER("Adding component %pOF\n", node);
> - drm_of_component_match_add(dev, match, component_compare_of, node);
> + of_node_get(node);
> + component_match_add_of(dev, match, node);
> count++;
> }
>
> diff --git a/drivers/gpu/drm/tilcdc/tilcdc_external.c b/drivers/gpu/drm/tilcdc/tilcdc_external.c
> index 3b86d002ef62..0138ce02a64f 100644
> --- a/drivers/gpu/drm/tilcdc/tilcdc_external.c
> +++ b/drivers/gpu/drm/tilcdc/tilcdc_external.c
> @@ -155,11 +155,6 @@ int tilcdc_attach_external_device(struct drm_device *ddev)
> return ret;
> }
>
> -static int dev_match_of(struct device *dev, void *data)
> -{
> - return dev->of_node == data;
> -}
> -
> int tilcdc_get_external_components(struct device *dev,
> struct component_match **match)
> {
> @@ -173,7 +168,8 @@ int tilcdc_get_external_components(struct device *dev,
> }
>
> if (match)
> - drm_of_component_match_add(dev, match, dev_match_of, node);
> - of_node_put(node);
> + component_match_add_of(dev, match, node);
> + else
> + of_node_put(node);
> return 1;
> }
> diff --git a/include/drm/drm_of.h b/include/drm/drm_of.h
> index 10ab58c40746..685c44dc1dae 100644
> --- a/include/drm/drm_of.h
> +++ b/include/drm/drm_of.h
> @@ -33,10 +33,6 @@ uint32_t drm_of_crtc_port_mask(struct drm_device *dev,
> struct device_node *port);
> uint32_t drm_of_find_possible_crtcs(struct drm_device *dev,
> struct device_node *port);
> -void drm_of_component_match_add(struct device *master,
> - struct component_match **matchptr,
> - int (*compare)(struct device *, void *),
> - struct device_node *node);
> int drm_of_component_probe(struct device *dev,
> int (*compare_of)(struct device *, void *),
> const struct component_master_ops *m_ops);
> @@ -69,14 +65,6 @@ static inline uint32_t drm_of_find_possible_crtcs(struct drm_device *dev,
> return 0;
> }
>
> -static inline void
> -drm_of_component_match_add(struct device *master,
> - struct component_match **matchptr,
> - int (*compare)(struct device *, void *),
> - struct device_node *node)
> -{
> -}
> -
> static inline int
> drm_of_component_probe(struct device *dev,
> int (*compare_of)(struct device *, void *),
> --
> 2.35.1.1320.gc452695387.dirty
>
--
====================
| I would like to |
| fix the world, |
| but they're not |
| giving me the |
\ source code! /
---------------
¯\_(ツ)_/¯
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