[PATCH v2 00/46] drm/panel: Use refcounted allocation in place of devm_kzalloc() - Part3

[PATCH v2 00/46] drm/panel: Use refcounted allocation in place of devm_kzalloc() - Part3

[Anusha Srivatsa]

Final set of drivers to use the new API - devm_drm_panel_alloc().
There are a lot of occurences of the panel allocation across the
subsystem. Much thanks to Maxime for the semanic patch which actually
gives a list of panels allocated unsafely.

virtual report

@ find_add @
identifier add_f;
identifier c;
identifier b;
expression d;
position p;
identifier r;
type T;
@@
add_f(...)
{
...
- T *c;
+ T *c;
...
(
drm_panel_add(&c->b)@p;
)
...
}
@ find_allocation depends on find_add @
identifier alloc_f;
type find_add.T;
identifier cal;
position p;
@@
alloc_f(...)
{
...
- T *cal;
+ T *cal;
...
(
 cal = kzalloc(...)@p;
|
 cal = devm_kzalloc(...)@p;
)
...
}
@ script:python depends on report && (find_add && find_allocation) @
add_f << find_add.add_f;
alloc_f << find_allocation.alloc_f;
add_p << find_add.p;
alloc_p << find_allocation.p;
@@
coccilib.report.print_report(alloc_p[0], "ERROR: Panel Driver is unsafely allocated in %s and added in %s" % (alloc_f, add_f))

The changes to the list of panels that this script gives is done manually.

Very minor changes in this version - refactors, alignment fixes.

With all drivers converted, next chunk of work is to add get() and put()
to drm_panel_add() and drm_panel_remove().

First 2 parts already merged.
Part 1 of the conversion : https://patchwork.freedesktop.org/series/147082/
Part 2 of the conversion : https://patchwork.freedesktop.org/series/147157/

Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
---
Changes in v2:
- simple refactors, if dev is already dereferenced use it (patch 8, 9,
  21, 32)
- fix alignment in 2 patches (patch 40 and 41)
- Use the right connector in patch 23
- Link to v1: https://lore.kernel.org/r/20250403-b4-drm_panel_mass_driver_convert_part3-v1-0-965b15ad5b8e@redhat.com

---
Anusha Srivatsa (46):
      panel/orisetech-otm8009a: Use refcounted allocation in place of devm_kzalloc()
      panel/raydium-rm67191: Use refcounted allocation in place of devm_kzalloc()
      panel/raydium-rm67200: Use refcounted allocation in place of devm_kzalloc()
      panel/raydium-rm68200: Use refcounted allocation in place of devm_kzalloc()
      panel/raydium-rm692e5: Use refcounted allocation in place of devm_kzalloc()
      panel/raydium-rm69380: Use refcounted allocation in place of devm_kzalloc()
      panel/ronbo-rb070d30: Use refcounted allocation in place of devm_kzalloc()
      panel/samsung-ams581vf01: Use refcounted allocation in place of devm_kzalloc()
      panel/samsung-ams639rq08: Use refcounted allocation in place of devm_kzalloc()
      panel/samsung-atna33xc20: Use refcounted allocation in place of devm_kzalloc()
      panel/samsung-db7430: Use refcounted allocation in place of devm_kzalloc()
      panel/samsung-ld9040: Use refcounted allocation in place of devm_kzalloc()
      panel/samsung-s6d16d0: Use refcounted allocation in place of devm_kzalloc()
      panel/samsung-s6d27a1: Use refcounted allocation in place of devm_kzalloc()
      panel/samsung-s6d7aa0: Use refcounted allocation in place of devm_kzalloc()
      panel/samsung-s6e3fa7: Use refcounted allocation in place of devm_kzalloc()
      panel/samsung-s6e3ha2: Use refcounted allocation in place of devm_kzalloc()
      panel/samsung-s6e3ha8: Use refcounted allocation in place of devm_kzalloc()
      panel/samsung-s6e63j0x03: Use refcounted allocation in place of devm_kzalloc()
      panel/s6e88a0-ams427ap24: Use refcounted allocation in place of devm_kzalloc()
      panel/samsung-s6e8aa0: Use refcounted allocation in place of devm_kzalloc()
      panel/samsung-sofef00: Use refcounted allocation in place of devm_kzalloc()
      panel/seiko-43wvf1g: Use refcounted allocation in place of devm_kzalloc()
      panel/sharp-ls037v7dw01: Use refcounted allocation in place of devm_kzalloc()
      panel/sharp-ls060t1sx01: Use refcounted allocation in place of devm_kzalloc()
      panel/sitronix-st7701: Use refcounted allocation in place of devm_kzalloc()
      panel/sitronix-st7703: Use refcounted allocation in place of devm_kzalloc()
      panel/sitronix-st7789v: Use refcounted allocation in place of devm_kzalloc()
      panel/sony-acx565akm: Use refcounted allocation in place of devm_kzalloc()
      panel/sony-td4353-jdi: Use refcounted allocation in place of devm_kzalloc()
      panel/truly-nt35521: Use refcounted allocation in place of devm_kzalloc()
      panel/panel-summit: Use refcounted allocation in place of devm_kzalloc()
      panel/synaptics-r63353: allocation in place of devm_kzalloc()
      panel/tpo-td028ttec1: Use refcounted allocation in place of devm_kzalloc()
      panel/tpo-td043mtea1: Use refcounted allocation in place of devm_kzalloc()
      panel/tpo-tpg110: Use refcounted allocation in place of devm_kzalloc()
      panel/visionox-r66451: Use refcounted allocation in place of devm_kzalloc()
      panel/visionox-rm69299: Use refcounted allocation in place of devm_kzalloc()
      panel/visionox-rm692e5.c: Use refcounted allocation in place of devm_kzalloc()
      panel/visionox-vtdr6130: Use refcounted allocation in place of devm_kzalloc()
      panel/widechips-ws2401: Use refcounted allocation in place of devm_kzalloc()
      panel/xinpeng-xpp055c272: Use refcounted allocation in place of devm_kzalloc()
      panel/s6e88a0-ams452ef01: Use refcounted allocation in place of devm_kzalloc()
      panel/nec-nl8048hl11: Use refcounted allocation in place of devm_kzalloc()
      panel/panel-lvds: Use refcounted allocation in place of devm_kzalloc()
      panel/lg-lb035q02: Use refcounted allocation in place of devm_kzalloc()

 drivers/gpu/drm/panel/panel-lg-lb035q02.c                | 10 ++++------
 drivers/gpu/drm/panel/panel-lvds.c                       | 12 +++++-------
 drivers/gpu/drm/panel/panel-nec-nl8048hl11.c             | 10 ++++------
 drivers/gpu/drm/panel/panel-orisetech-otm8009a.c         | 11 +++++------
 drivers/gpu/drm/panel/panel-raydium-rm67191.c            | 10 +++++-----
 drivers/gpu/drm/panel/panel-raydium-rm67200.c            | 11 +++++------
 drivers/gpu/drm/panel/panel-raydium-rm68200.c            | 11 +++++------
 drivers/gpu/drm/panel/panel-raydium-rm692e5.c            | 10 +++++-----
 drivers/gpu/drm/panel/panel-raydium-rm69380.c            | 10 +++++-----
 drivers/gpu/drm/panel/panel-ronbo-rb070d30.c             | 11 +++++------
 drivers/gpu/drm/panel/panel-samsung-ams581vf01.c         | 10 +++++-----
 drivers/gpu/drm/panel/panel-samsung-ams639rq08.c         | 10 +++++-----
 drivers/gpu/drm/panel/panel-samsung-atna33xc20.c         | 11 ++++++-----
 drivers/gpu/drm/panel/panel-samsung-db7430.c             | 11 +++++------
 drivers/gpu/drm/panel/panel-samsung-ld9040.c             | 11 +++++------
 drivers/gpu/drm/panel/panel-samsung-s6d16d0.c            | 11 +++++------
 drivers/gpu/drm/panel/panel-samsung-s6d27a1.c            | 11 +++++------
 drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c            | 10 +++++-----
 drivers/gpu/drm/panel/panel-samsung-s6e3fa7.c            | 10 +++++-----
 drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c            | 10 +++++-----
 drivers/gpu/drm/panel/panel-samsung-s6e3ha8.c            | 10 +++++-----
 drivers/gpu/drm/panel/panel-samsung-s6e63j0x03.c         | 10 +++++-----
 drivers/gpu/drm/panel/panel-samsung-s6e88a0-ams427ap24.c | 10 +++++-----
 drivers/gpu/drm/panel/panel-samsung-s6e88a0-ams452ef01.c | 11 +++++------
 drivers/gpu/drm/panel/panel-samsung-s6e8aa0.c            | 10 +++++-----
 drivers/gpu/drm/panel/panel-samsung-sofef00.c            | 11 +++++------
 drivers/gpu/drm/panel/panel-seiko-43wvf1g.c              | 11 +++++------
 drivers/gpu/drm/panel/panel-sharp-ls037v7dw01.c          | 10 ++++------
 drivers/gpu/drm/panel/panel-sharp-ls060t1sx01.c          | 11 +++++------
 drivers/gpu/drm/panel/panel-sitronix-st7701.c            |  8 ++++----
 drivers/gpu/drm/panel/panel-sitronix-st7703.c            | 11 +++++------
 drivers/gpu/drm/panel/panel-sitronix-st7789v.c           | 10 ++++------
 drivers/gpu/drm/panel/panel-sony-acx565akm.c             | 10 ++++------
 drivers/gpu/drm/panel/panel-sony-td4353-jdi.c            | 11 +++++------
 drivers/gpu/drm/panel/panel-sony-tulip-truly-nt35521.c   | 11 +++++------
 drivers/gpu/drm/panel/panel-summit.c                     | 10 +++++-----
 drivers/gpu/drm/panel/panel-synaptics-r63353.c           | 11 +++++------
 drivers/gpu/drm/panel/panel-tpo-td028ttec1.c             | 11 +++++------
 drivers/gpu/drm/panel/panel-tpo-td043mtea1.c             | 10 ++++------
 drivers/gpu/drm/panel/panel-tpo-tpg110.c                 | 11 +++++------
 drivers/gpu/drm/panel/panel-visionox-r66451.c            |  9 +++++----
 drivers/gpu/drm/panel/panel-visionox-rm69299.c           | 10 +++++-----
 drivers/gpu/drm/panel/panel-visionox-rm692e5.c           | 10 +++++-----
 drivers/gpu/drm/panel/panel-visionox-vtdr6130.c          | 11 +++++------
 drivers/gpu/drm/panel/panel-widechips-ws2401.c           | 11 +++++------
 drivers/gpu/drm/panel/panel-xinpeng-xpp055c272.c         | 10 ++++------
 46 files changed, 223 insertions(+), 257 deletions(-)
---
base-commit: ef818481d9fbaf3483dde0d1faa565a016810de3
change-id: 20250402-b4-drm_panel_mass_driver_convert_part3-9b06bf9d3b22

Best regards,
-- 
Anusha Srivatsa <asrivats@redhat.com>

[PATCH v2 01/46] panel/orisetech-otm8009a: Use refcounted allocation in place of devm_kzalloc()

[Anusha Srivatsa]

Move to using the new API devm_drm_panel_alloc() to allocate the
panel.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
---
v2: none.
---
 drivers/gpu/drm/panel/panel-orisetech-otm8009a.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-orisetech-otm8009a.c b/drivers/gpu/drm/panel/panel-orisetech-otm8009a.c
index 87bbb25d119a38a0d92bf3eece5c00b4ab38f4a7..a0f58c3b73f693511d146ae191e2e42862336841 100644
--- a/drivers/gpu/drm/panel/panel-orisetech-otm8009a.c
+++ b/drivers/gpu/drm/panel/panel-orisetech-otm8009a.c
@@ -424,9 +424,11 @@ static int otm8009a_probe(struct mipi_dsi_device *dsi)
 	struct otm8009a *ctx;
 	int ret;
 
-	ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
-	if (!ctx)
-		return -ENOMEM;
+	ctx = devm_drm_panel_alloc(dev, struct otm8009a, panel,
+				   &otm8009a_drm_funcs,
+				   DRM_MODE_CONNECTOR_DSI);
+	if (IS_ERR(ctx))
+		return PTR_ERR(ctx);
 
 	ctx->reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_LOW);
 	if (IS_ERR(ctx->reset_gpio)) {
@@ -451,9 +453,6 @@ static int otm8009a_probe(struct mipi_dsi_device *dsi)
 	dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
 			  MIPI_DSI_MODE_LPM | MIPI_DSI_CLOCK_NON_CONTINUOUS;
 
-	drm_panel_init(&ctx->panel, dev, &otm8009a_drm_funcs,
-		       DRM_MODE_CONNECTOR_DSI);
-
 	ctx->bl_dev = devm_backlight_device_register(dev, dev_name(dev),
 						     dev, ctx,
 						     &otm8009a_backlight_ops,

-- 
2.48.1

Re: [PATCH v2 01/46] panel/orisetech-otm8009a: Use refcounted allocation in place of devm_kzalloc()

[Geert Uytterhoeven]

Hi Anusha,

On Fri, 30 May 2025 at 20:28, Anusha Srivatsa <asrivats@redhat.com> wrote:
> Move to using the new API devm_drm_panel_alloc() to allocate the
> panel.
>
> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
> Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>

Thanks for your patch!

I have a generic comment that applies to all patches in the series.

> --- a/drivers/gpu/drm/panel/panel-orisetech-otm8009a.c
> +++ b/drivers/gpu/drm/panel/panel-orisetech-otm8009a.c
> @@ -424,9 +424,11 @@ static int otm8009a_probe(struct mipi_dsi_device *dsi)
>         struct otm8009a *ctx;
>         int ret;
>
> -       ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);

The old code used sizeof(*ctx) instead of an explicit type, for
increased type-safety.

> -       if (!ctx)
> -               return -ENOMEM;
> +       ctx = devm_drm_panel_alloc(dev, struct otm8009a, panel,

Can't you use __typeof(*ctx) instead of the explicit type here, too?

> +                                  &otm8009a_drm_funcs,
> +                                  DRM_MODE_CONNECTOR_DSI);
> +       if (IS_ERR(ctx))
> +               return PTR_ERR(ctx);
>
>         ctx->reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_LOW);
>         if (IS_ERR(ctx->reset_gpio)) {

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

[PATCH v2 02/46] panel/raydium-rm67191: Use refcounted allocation in place of devm_kzalloc()

[Anusha Srivatsa]

Move to using the new API devm_drm_panel_alloc() to allocate the
panel.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
---
v2: none
---
 drivers/gpu/drm/panel/panel-raydium-rm67191.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-raydium-rm67191.c b/drivers/gpu/drm/panel/panel-raydium-rm67191.c
index b2029e0356358f55e7a13a32202f0e38c7f0434b..2af6aa47a5510122c1e9e697cf42a7fc9993197d 100644
--- a/drivers/gpu/drm/panel/panel-raydium-rm67191.c
+++ b/drivers/gpu/drm/panel/panel-raydium-rm67191.c
@@ -527,9 +527,11 @@ static int rad_panel_probe(struct mipi_dsi_device *dsi)
 	int ret;
 	u32 video_mode;
 
-	panel = devm_kzalloc(&dsi->dev, sizeof(*panel), GFP_KERNEL);
-	if (!panel)
-		return -ENOMEM;
+	panel = devm_drm_panel_alloc(dev, struct rad_panel, panel,
+				     &rad_panel_funcs,
+				     DRM_MODE_CONNECTOR_DSI);
+	if (IS_ERR(panel))
+		return PTR_ERR(panel);
 
 	mipi_dsi_set_drvdata(dsi, panel);
 
@@ -586,8 +588,6 @@ static int rad_panel_probe(struct mipi_dsi_device *dsi)
 	if (ret)
 		return ret;
 
-	drm_panel_init(&panel->panel, dev, &rad_panel_funcs,
-		       DRM_MODE_CONNECTOR_DSI);
 	dev_set_drvdata(dev, panel);
 
 	drm_panel_add(&panel->panel);

-- 
2.48.1

[PATCH v2 03/46] panel/raydium-rm67200: Use refcounted allocation in place of devm_kzalloc()

[Anusha Srivatsa]

Move to using the new API devm_drm_panel_alloc() to allocate the
panel.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
---
v2: none.
---
 drivers/gpu/drm/panel/panel-raydium-rm67200.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-raydium-rm67200.c b/drivers/gpu/drm/panel/panel-raydium-rm67200.c
index 64b685dc11f65b0f402995e27a42df5d69ae4361..1da8225e6f7a5cff94a882874be909db1d28fe86 100644
--- a/drivers/gpu/drm/panel/panel-raydium-rm67200.c
+++ b/drivers/gpu/drm/panel/panel-raydium-rm67200.c
@@ -391,9 +391,11 @@ static int raydium_rm67200_probe(struct mipi_dsi_device *dsi)
 	struct raydium_rm67200 *ctx;
 	int ret = 0;
 
-	ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
-	if (!ctx)
-		return -ENOMEM;
+	ctx = devm_drm_panel_alloc(dev, struct raydium_rm67200, panel,
+				   &raydium_rm67200_funcs,
+				   DRM_MODE_CONNECTOR_DSI);
+	if (IS_ERR(ctx))
+		return PTR_ERR(ctx);
 
 	ctx->panel_info = device_get_match_data(dev);
 	if (!ctx->panel_info)
@@ -421,9 +423,6 @@ static int raydium_rm67200_probe(struct mipi_dsi_device *dsi)
 			  MIPI_DSI_MODE_LPM;
 	ctx->panel.prepare_prev_first = true;
 
-	drm_panel_init(&ctx->panel, dev, &raydium_rm67200_funcs,
-		       DRM_MODE_CONNECTOR_DSI);
-
 	ret = drm_panel_of_backlight(&ctx->panel);
 	if (ret)
 		return ret;

-- 
2.48.1

[PATCH v2 04/46] panel/raydium-rm68200: Use refcounted allocation in place of devm_kzalloc()

[Anusha Srivatsa]

Move to using the new API devm_drm_panel_alloc() to allocate the
panel.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
---
v2: none.
---
 drivers/gpu/drm/panel/panel-raydium-rm68200.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-raydium-rm68200.c b/drivers/gpu/drm/panel/panel-raydium-rm68200.c
index 7b7fe987e2929f6f6ebe9a644bf4ef0cf9292256..669b5f5c1ad9adf5697f7432e4d6ee275ff72e42 100644
--- a/drivers/gpu/drm/panel/panel-raydium-rm68200.c
+++ b/drivers/gpu/drm/panel/panel-raydium-rm68200.c
@@ -327,9 +327,11 @@ static int rm68200_probe(struct mipi_dsi_device *dsi)
 	struct rm68200 *ctx;
 	int ret;
 
-	ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
-	if (!ctx)
-		return -ENOMEM;
+	ctx = devm_drm_panel_alloc(dev, struct rm68200, panel,
+				   &rm68200_drm_funcs,
+				   DRM_MODE_CONNECTOR_DSI);
+	if (IS_ERR(ctx))
+		return PTR_ERR(ctx);
 
 	ctx->reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_LOW);
 	if (IS_ERR(ctx->reset_gpio)) {
@@ -355,9 +357,6 @@ static int rm68200_probe(struct mipi_dsi_device *dsi)
 	dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
 			  MIPI_DSI_MODE_LPM | MIPI_DSI_CLOCK_NON_CONTINUOUS;
 
-	drm_panel_init(&ctx->panel, dev, &rm68200_drm_funcs,
-		       DRM_MODE_CONNECTOR_DSI);
-
 	ret = drm_panel_of_backlight(&ctx->panel);
 	if (ret)
 		return ret;

-- 
2.48.1

[PATCH v2 05/46] panel/raydium-rm692e5: Use refcounted allocation in place of devm_kzalloc()

[Anusha Srivatsa]

Move to using the new API devm_drm_panel_alloc() to allocate the
panel.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
---
v2: none.
---
 drivers/gpu/drm/panel/panel-raydium-rm692e5.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-raydium-rm692e5.c b/drivers/gpu/drm/panel/panel-raydium-rm692e5.c
index ea1b728e85a2ece226d3df48dbd45a763bc6bd5d..8e9484768657b68a300d42594ab921ee37a5d5a3 100644
--- a/drivers/gpu/drm/panel/panel-raydium-rm692e5.c
+++ b/drivers/gpu/drm/panel/panel-raydium-rm692e5.c
@@ -281,9 +281,11 @@ static int rm692e5_probe(struct mipi_dsi_device *dsi)
 	struct rm692e5_panel *ctx;
 	int ret;
 
-	ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
-	if (!ctx)
-		return -ENOMEM;
+	ctx = devm_drm_panel_alloc(dev, struct rm692e5_panel, panel,
+				   &rm692e5_panel_funcs,
+				   DRM_MODE_CONNECTOR_DSI);
+	if (IS_ERR(ctx))
+		return PTR_ERR(ctx);
 
 	ctx->supplies[0].supply = "vddio";
 	ctx->supplies[1].supply = "dvdd";
@@ -306,8 +308,6 @@ static int rm692e5_probe(struct mipi_dsi_device *dsi)
 	dsi->mode_flags = MIPI_DSI_MODE_NO_EOT_PACKET |
 			  MIPI_DSI_CLOCK_NON_CONTINUOUS;
 
-	drm_panel_init(&ctx->panel, dev, &rm692e5_panel_funcs,
-		       DRM_MODE_CONNECTOR_DSI);
 	ctx->panel.prepare_prev_first = true;
 
 	ctx->panel.backlight = rm692e5_create_backlight(dsi);

-- 
2.48.1

[PATCH v2 06/46] panel/raydium-rm69380: Use refcounted allocation in place of devm_kzalloc()

[Anusha Srivatsa]

Move to using the new API devm_drm_panel_alloc() to allocate the
panel.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
---
v2: none.
---
 drivers/gpu/drm/panel/panel-raydium-rm69380.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-raydium-rm69380.c b/drivers/gpu/drm/panel/panel-raydium-rm69380.c
index d3071c01aaeae92c8ff1cdec14a01f64a9ae6460..86769cadec972ff0e7f5ba5275a7d6f2afb37ee1 100644
--- a/drivers/gpu/drm/panel/panel-raydium-rm69380.c
+++ b/drivers/gpu/drm/panel/panel-raydium-rm69380.c
@@ -208,9 +208,11 @@ static int rm69380_probe(struct mipi_dsi_device *dsi)
 	struct device_node *dsi_sec;
 	int ret, i;
 
-	ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
-	if (!ctx)
-		return -ENOMEM;
+	ctx = devm_drm_panel_alloc(dev, struct rm69380_panel, panel,
+				   &rm69380_panel_funcs,
+				   DRM_MODE_CONNECTOR_DSI);
+	if (IS_ERR(ctx))
+		return PTR_ERR(ctx);
 
 	ctx->supplies[0].supply = "vddio";
 	ctx->supplies[1].supply = "avdd";
@@ -248,8 +250,6 @@ static int rm69380_probe(struct mipi_dsi_device *dsi)
 	ctx->dsi[0] = dsi;
 	mipi_dsi_set_drvdata(dsi, ctx);
 
-	drm_panel_init(&ctx->panel, dev, &rm69380_panel_funcs,
-		       DRM_MODE_CONNECTOR_DSI);
 	ctx->panel.prepare_prev_first = true;
 
 	ctx->panel.backlight = rm69380_create_backlight(dsi);

-- 
2.48.1

[PATCH v2 07/46] panel/ronbo-rb070d30: Use refcounted allocation in place of devm_kzalloc()

[Anusha Srivatsa]

Move to using the new API devm_drm_panel_alloc() to allocate the
panel.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
---
v2: none.
---
 drivers/gpu/drm/panel/panel-ronbo-rb070d30.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-ronbo-rb070d30.c b/drivers/gpu/drm/panel/panel-ronbo-rb070d30.c
index 2ef5ea5eaeeb2062372c594d077bd070975119ed..ad35d0fb0a16787ffb87c365c9939c78ff42d67a 100644
--- a/drivers/gpu/drm/panel/panel-ronbo-rb070d30.c
+++ b/drivers/gpu/drm/panel/panel-ronbo-rb070d30.c
@@ -143,9 +143,11 @@ static int rb070d30_panel_dsi_probe(struct mipi_dsi_device *dsi)
 	struct rb070d30_panel *ctx;
 	int ret;
 
-	ctx = devm_kzalloc(&dsi->dev, sizeof(*ctx), GFP_KERNEL);
-	if (!ctx)
-		return -ENOMEM;
+	ctx = devm_drm_panel_alloc(&dsi->dev, struct rb070d30_panel, panel,
+				   &rb070d30_panel_funcs,
+				   DRM_MODE_CONNECTOR_DSI);
+	if (IS_ERR(ctx))
+		return PTR_ERR(ctx);
 
 	ctx->supply = devm_regulator_get(&dsi->dev, "vcc-lcd");
 	if (IS_ERR(ctx->supply))
@@ -154,9 +156,6 @@ static int rb070d30_panel_dsi_probe(struct mipi_dsi_device *dsi)
 	mipi_dsi_set_drvdata(dsi, ctx);
 	ctx->dsi = dsi;
 
-	drm_panel_init(&ctx->panel, &dsi->dev, &rb070d30_panel_funcs,
-		       DRM_MODE_CONNECTOR_DSI);
-
 	ctx->gpios.reset = devm_gpiod_get(&dsi->dev, "reset", GPIOD_OUT_LOW);
 	if (IS_ERR(ctx->gpios.reset)) {
 		dev_err(&dsi->dev, "Couldn't get our reset GPIO\n");

-- 
2.48.1

[PATCH v2 08/46] panel/samsung-ams581vf01: Use refcounted allocation in place of devm_kzalloc()

[Anusha Srivatsa]

Move to using the new API devm_drm_panel_alloc() to allocate the
panel.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
---
v2: refactor. use &dsi->dev instead of dev.
---
 drivers/gpu/drm/panel/panel-samsung-ams581vf01.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-samsung-ams581vf01.c b/drivers/gpu/drm/panel/panel-samsung-ams581vf01.c
index cf61863122520ea1c2f6179bf51cef01d26db45e..188dd7cf0297f59e716dcd8aba3b03684d723bf9 100644
--- a/drivers/gpu/drm/panel/panel-samsung-ams581vf01.c
+++ b/drivers/gpu/drm/panel/panel-samsung-ams581vf01.c
@@ -211,9 +211,11 @@ static int ams581vf01_probe(struct mipi_dsi_device *dsi)
 	struct ams581vf01 *ctx;
 	int ret;
 
-	ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
-	if (!ctx)
-		return -ENOMEM;
+	ctx = devm_drm_panel_alloc(&dsi->dev, struct ams581vf01, panel,
+				   &ams581vf01_panel_funcs,
+				   DRM_MODE_CONNECTOR_DSI);
+	if (IS_ERR(ctx))
+		return PTR_ERR(ctx);
 
 	ret = devm_regulator_bulk_get_const(&dsi->dev,
 					    ARRAY_SIZE(ams581vf01_supplies),
@@ -235,8 +237,6 @@ static int ams581vf01_probe(struct mipi_dsi_device *dsi)
 	dsi->mode_flags = MIPI_DSI_MODE_VIDEO_BURST |
 			  MIPI_DSI_CLOCK_NON_CONTINUOUS | MIPI_DSI_MODE_LPM;
 
-	drm_panel_init(&ctx->panel, dev, &ams581vf01_panel_funcs,
-		       DRM_MODE_CONNECTOR_DSI);
 	ctx->panel.prepare_prev_first = true;
 
 	ctx->panel.backlight = ams581vf01_create_backlight(dsi);

-- 
2.48.1

[PATCH v2 09/46] panel/samsung-ams639rq08: Use refcounted allocation in place of devm_kzalloc()

[Anusha Srivatsa]

Move to using the new API devm_drm_panel_alloc() to allocate the
panel.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
---
v2: refactor. Use dev instead of &dsi->dev.
---
 drivers/gpu/drm/panel/panel-samsung-ams639rq08.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-samsung-ams639rq08.c b/drivers/gpu/drm/panel/panel-samsung-ams639rq08.c
index 817365cb5e461f5e0a154b6d9d5c101e05b8945b..f8ebbd4a530bda494d320f691cd13c6747c5f8db 100644
--- a/drivers/gpu/drm/panel/panel-samsung-ams639rq08.c
+++ b/drivers/gpu/drm/panel/panel-samsung-ams639rq08.c
@@ -257,9 +257,11 @@ static int ams639rq08_probe(struct mipi_dsi_device *dsi)
 	struct ams639rq08 *ctx;
 	int ret;
 
-	ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
-	if (!ctx)
-		return -ENOMEM;
+	ctx = devm_drm_panel_alloc(dev, struct ams639rq08, panel,
+				   &ams639rq08_panel_funcs,
+				   DRM_MODE_CONNECTOR_DSI);
+	if (IS_ERR(ctx))
+		return PTR_ERR(ctx);
 
 	ret = devm_regulator_bulk_get_const(&dsi->dev,
 					    ARRAY_SIZE(ams639rq08_supplies),
@@ -281,8 +283,6 @@ static int ams639rq08_probe(struct mipi_dsi_device *dsi)
 	dsi->mode_flags = MIPI_DSI_MODE_VIDEO_BURST |
 			  MIPI_DSI_CLOCK_NON_CONTINUOUS | MIPI_DSI_MODE_LPM;
 
-	drm_panel_init(&ctx->panel, dev, &ams639rq08_panel_funcs,
-			DRM_MODE_CONNECTOR_DSI);
 	ctx->panel.prepare_prev_first = true;
 
 	ctx->panel.backlight = ams639rq08_create_backlight(dsi);

-- 
2.48.1

[PATCH v2 10/46] panel/samsung-atna33xc20: Use refcounted allocation in place of devm_kzalloc()

[Anusha Srivatsa]

Move to using the new API devm_drm_panel_alloc() to allocate the
panel.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
---
v2: none.
---
 drivers/gpu/drm/panel/panel-samsung-atna33xc20.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-samsung-atna33xc20.c b/drivers/gpu/drm/panel/panel-samsung-atna33xc20.c
index 9a482a744b8c15fe1592a09c2bfe17a2bb05b5ac..20ec27d2d6c255be2c33f65d3ff25a41045a9d07 100644
--- a/drivers/gpu/drm/panel/panel-samsung-atna33xc20.c
+++ b/drivers/gpu/drm/panel/panel-samsung-atna33xc20.c
@@ -266,9 +266,12 @@ static int atana33xc20_probe(struct dp_aux_ep_device *aux_ep)
 	struct device *dev = &aux_ep->dev;
 	int ret;
 
-	panel = devm_kzalloc(dev, sizeof(*panel), GFP_KERNEL);
-	if (!panel)
-		return -ENOMEM;
+	panel = devm_drm_panel_alloc(dev, struct atana33xc20_panel, base,
+				     &atana33xc20_funcs,
+				     DRM_MODE_CONNECTOR_eDP);
+	if (IS_ERR(panel))
+		return PTR_ERR(panel);
+
 	dev_set_drvdata(dev, panel);
 
 	panel->aux = aux_ep->aux;
@@ -301,8 +304,6 @@ static int atana33xc20_probe(struct dp_aux_ep_device *aux_ep)
 	if (ret)
 		return ret;
 
-	drm_panel_init(&panel->base, dev, &atana33xc20_funcs, DRM_MODE_CONNECTOR_eDP);
-
 	pm_runtime_get_sync(dev);
 	ret = drm_panel_dp_aux_backlight(&panel->base, aux_ep->aux);
 	pm_runtime_mark_last_busy(dev);

-- 
2.48.1

[PATCH v2 11/46] panel/samsung-db7430: Use refcounted allocation in place of devm_kzalloc()

[Anusha Srivatsa]

Move to using the new API devm_drm_panel_alloc() to allocate the
panel.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
---
v2: none.
---
 drivers/gpu/drm/panel/panel-samsung-db7430.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-samsung-db7430.c b/drivers/gpu/drm/panel/panel-samsung-db7430.c
index 14c6700e37b30a58e7081423c18bff8db7896c5b..a97182f3c9907ad33ab6e7717129029e3bc4cd8b 100644
--- a/drivers/gpu/drm/panel/panel-samsung-db7430.c
+++ b/drivers/gpu/drm/panel/panel-samsung-db7430.c
@@ -267,9 +267,11 @@ static int db7430_probe(struct spi_device *spi)
 	struct db7430 *db;
 	int ret;
 
-	db = devm_kzalloc(dev, sizeof(*db), GFP_KERNEL);
-	if (!db)
-		return -ENOMEM;
+	db = devm_drm_panel_alloc(dev, struct db7430, panel, &db7430_drm_funcs,
+				  DRM_MODE_CONNECTOR_DPI);
+	if (IS_ERR(db))
+		return PTR_ERR(db);
+
 	db->dev = dev;
 
 	/*
@@ -294,9 +296,6 @@ static int db7430_probe(struct spi_device *spi)
 	if (ret)
 		return dev_err_probe(dev, ret, "MIPI DBI init failed\n");
 
-	drm_panel_init(&db->panel, dev, &db7430_drm_funcs,
-		       DRM_MODE_CONNECTOR_DPI);
-
 	/* FIXME: if no external backlight, use internal backlight */
 	ret = drm_panel_of_backlight(&db->panel);
 	if (ret)

-- 
2.48.1

[PATCH v2 12/46] panel/samsung-ld9040: Use refcounted allocation in place of devm_kzalloc()

[Anusha Srivatsa]

Move to using the new API devm_drm_panel_alloc() to allocate the
panel.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
---
v2: none.
---
 drivers/gpu/drm/panel/panel-samsung-ld9040.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-samsung-ld9040.c b/drivers/gpu/drm/panel/panel-samsung-ld9040.c
index 9f438683a6f6e872317af879d1d9518551b08987..c7f2241523a07dfeb7c1cb02c4b4e4758382ae76 100644
--- a/drivers/gpu/drm/panel/panel-samsung-ld9040.c
+++ b/drivers/gpu/drm/panel/panel-samsung-ld9040.c
@@ -339,9 +339,11 @@ static int ld9040_probe(struct spi_device *spi)
 	struct ld9040 *ctx;
 	int ret;
 
-	ctx = devm_kzalloc(dev, sizeof(struct ld9040), GFP_KERNEL);
-	if (!ctx)
-		return -ENOMEM;
+	ctx = devm_drm_panel_alloc(dev, struct ld9040, panel,
+				   &ld9040_drm_funcs,
+				   DRM_MODE_CONNECTOR_DPI);
+	if (IS_ERR(ctx))
+		return PTR_ERR(ctx);
 
 	spi_set_drvdata(spi, ctx);
 
@@ -373,9 +375,6 @@ static int ld9040_probe(struct spi_device *spi)
 		return ret;
 	}
 
-	drm_panel_init(&ctx->panel, dev, &ld9040_drm_funcs,
-		       DRM_MODE_CONNECTOR_DPI);
-
 	bldev = devm_backlight_device_register(dev, dev_name(dev), dev,
 					       ctx, &ld9040_bl_ops,
 					       &ld9040_bl_props);

-- 
2.48.1

[PATCH v2 13/46] panel/samsung-s6d16d0: Use refcounted allocation in place of devm_kzalloc()

[Anusha Srivatsa]

Move to using the new API devm_drm_panel_alloc() to allocate the
panel.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
---
v2: none.
---
 drivers/gpu/drm/panel/panel-samsung-s6d16d0.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-samsung-s6d16d0.c b/drivers/gpu/drm/panel/panel-samsung-s6d16d0.c
index 79f611963c6183218b42c7b6c3e2ab298e3fdb99..ba1a02000bb9def0b4afa8a43e13bc7c3c92a51d 100644
--- a/drivers/gpu/drm/panel/panel-samsung-s6d16d0.c
+++ b/drivers/gpu/drm/panel/panel-samsung-s6d16d0.c
@@ -166,9 +166,11 @@ static int s6d16d0_probe(struct mipi_dsi_device *dsi)
 	struct s6d16d0 *s6;
 	int ret;
 
-	s6 = devm_kzalloc(dev, sizeof(struct s6d16d0), GFP_KERNEL);
-	if (!s6)
-		return -ENOMEM;
+	s6 = devm_drm_panel_alloc(dev, struct s6d16d0, panel,
+				  &s6d16d0_drm_funcs,
+				  DRM_MODE_CONNECTOR_DSI);
+	if (IS_ERR(s6))
+		return PTR_ERR(s6);
 
 	mipi_dsi_set_drvdata(dsi, s6);
 	s6->dev = dev;
@@ -200,9 +202,6 @@ static int s6d16d0_probe(struct mipi_dsi_device *dsi)
 		return ret;
 	}
 
-	drm_panel_init(&s6->panel, dev, &s6d16d0_drm_funcs,
-		       DRM_MODE_CONNECTOR_DSI);
-
 	drm_panel_add(&s6->panel);
 
 	ret = mipi_dsi_attach(dsi);

-- 
2.48.1

[PATCH v2 14/46] panel/samsung-s6d27a1: Use refcounted allocation in place of devm_kzalloc()

[Anusha Srivatsa]

Move to using the new API devm_drm_panel_alloc() to allocate the
panel.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
---
v2: none.
---
 drivers/gpu/drm/panel/panel-samsung-s6d27a1.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-samsung-s6d27a1.c b/drivers/gpu/drm/panel/panel-samsung-s6d27a1.c
index 2adb223a895c9c89703abcf1148fbe9bd6c0da41..300dc19bd9d135ec889f9604fb14637bb60fc250 100644
--- a/drivers/gpu/drm/panel/panel-samsung-s6d27a1.c
+++ b/drivers/gpu/drm/panel/panel-samsung-s6d27a1.c
@@ -247,9 +247,11 @@ static int s6d27a1_probe(struct spi_device *spi)
 	struct s6d27a1 *ctx;
 	int ret;
 
-	ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
-	if (!ctx)
-		return -ENOMEM;
+	ctx = devm_drm_panel_alloc(dev, struct s6d27a1, panel,
+				   &s6d27a1_drm_funcs,
+				   DRM_MODE_CONNECTOR_DPI);
+	if (IS_ERR(ctx))
+		return PTR_ERR(ctx);
 
 	ctx->dev = dev;
 
@@ -277,9 +279,6 @@ static int s6d27a1_probe(struct spi_device *spi)
 
 	ctx->dbi.read_commands = s6d27a1_dbi_read_commands;
 
-	drm_panel_init(&ctx->panel, dev, &s6d27a1_drm_funcs,
-		       DRM_MODE_CONNECTOR_DPI);
-
 	ret = drm_panel_of_backlight(&ctx->panel);
 	if (ret)
 		return dev_err_probe(dev, ret, "failed to add backlight\n");

-- 
2.48.1

[PATCH v2 15/46] panel/samsung-s6d7aa0: Use refcounted allocation in place of devm_kzalloc()

[Anusha Srivatsa]

Move to using the new API devm_drm_panel_alloc() to allocate the
panel.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
---
v2: none.
---
 drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c b/drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c
index 93f11e2e9398782ed10c70159c25fbd5d9f4eb4c..b5b9e80690f66cc62acbd341865d8d47419e498b 100644
--- a/drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c
+++ b/drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c
@@ -392,9 +392,11 @@ static int s6d7aa0_probe(struct mipi_dsi_device *dsi)
 	struct s6d7aa0 *ctx;
 	int ret;
 
-	ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
-	if (!ctx)
-		return -ENOMEM;
+	ctx = devm_drm_panel_alloc(dev, struct s6d7aa0, panel,
+				   &s6d7aa0_panel_funcs,
+				   DRM_MODE_CONNECTOR_DSI);
+	if (IS_ERR(ctx))
+		return PTR_ERR(ctx);
 
 	ctx->desc = of_device_get_match_data(dev);
 	if (!ctx->desc)
@@ -420,8 +422,6 @@ static int s6d7aa0_probe(struct mipi_dsi_device *dsi)
 	dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST
 		| ctx->desc->mode_flags;
 
-	drm_panel_init(&ctx->panel, dev, &s6d7aa0_panel_funcs,
-		       DRM_MODE_CONNECTOR_DSI);
 	ctx->panel.prepare_prev_first = true;
 
 	ret = drm_panel_of_backlight(&ctx->panel);

-- 
2.48.1

[PATCH v2 16/46] panel/samsung-s6e3fa7: Use refcounted allocation in place of devm_kzalloc()

[Anusha Srivatsa]

Move to using the new API devm_drm_panel_alloc() to allocate the
panel.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
---
v2: none.
---
 drivers/gpu/drm/panel/panel-samsung-s6e3fa7.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-samsung-s6e3fa7.c b/drivers/gpu/drm/panel/panel-samsung-s6e3fa7.c
index 27a059b55ae526ba41cc61d59e15b780e5d3a934..f4d75eca3cdfa27441fbb1e303dd8894257d4397 100644
--- a/drivers/gpu/drm/panel/panel-samsung-s6e3fa7.c
+++ b/drivers/gpu/drm/panel/panel-samsung-s6e3fa7.c
@@ -185,9 +185,11 @@ static int s6e3fa7_panel_probe(struct mipi_dsi_device *dsi)
 	struct s6e3fa7_panel *ctx;
 	int ret;
 
-	ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
-	if (!ctx)
-		return -ENOMEM;
+	ctx = devm_drm_panel_alloc(dev, struct s6e3fa7_panel, panel,
+				   &s6e3fa7_panel_funcs,
+				   DRM_MODE_CONNECTOR_DSI);
+	if (IS_ERR(ctx))
+		return PTR_ERR(ctx);
 
 	ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
 	if (IS_ERR(ctx->reset_gpio))
@@ -202,8 +204,6 @@ static int s6e3fa7_panel_probe(struct mipi_dsi_device *dsi)
 	dsi->mode_flags = MIPI_DSI_MODE_VIDEO_BURST |
 			  MIPI_DSI_CLOCK_NON_CONTINUOUS | MIPI_DSI_MODE_LPM;
 
-	drm_panel_init(&ctx->panel, dev, &s6e3fa7_panel_funcs,
-		       DRM_MODE_CONNECTOR_DSI);
 	ctx->panel.prepare_prev_first = true;
 
 	ctx->panel.backlight = s6e3fa7_panel_create_backlight(dsi);

-- 
2.48.1

[PATCH v2 17/46] panel/samsung-s6e3ha2: Use refcounted allocation in place of devm_kzalloc()

[Anusha Srivatsa]

Move to using the new API devm_drm_panel_alloc() to allocate the
panel.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
---
v2: none.
---
 drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c b/drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c
index ab8b58545284030714c0d5520f20ba69ed9cf601..1db0c63b1131ee614ddf0bb9abe00e2b89756b4c 100644
--- a/drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c
+++ b/drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c
@@ -681,9 +681,11 @@ static int s6e3ha2_probe(struct mipi_dsi_device *dsi)
 	struct s6e3ha2 *ctx;
 	int ret;
 
-	ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
-	if (!ctx)
-		return -ENOMEM;
+	ctx = devm_drm_panel_alloc(dev, struct s6e3ha2, panel,
+				   &s6e3ha2_drm_funcs,
+				   DRM_MODE_CONNECTOR_DSI);
+	if (IS_ERR(ctx))
+		return PTR_ERR(ctx);
 
 	mipi_dsi_set_drvdata(dsi, ctx);
 
@@ -731,8 +733,6 @@ static int s6e3ha2_probe(struct mipi_dsi_device *dsi)
 	ctx->bl_dev->props.brightness = S6E3HA2_DEFAULT_BRIGHTNESS;
 	ctx->bl_dev->props.power = BACKLIGHT_POWER_OFF;
 
-	drm_panel_init(&ctx->panel, dev, &s6e3ha2_drm_funcs,
-		       DRM_MODE_CONNECTOR_DSI);
 	ctx->panel.prepare_prev_first = true;
 
 	drm_panel_add(&ctx->panel);

-- 
2.48.1

[PATCH v2 18/46] panel/samsung-s6e3ha8: Use refcounted allocation in place of devm_kzalloc()

[Anusha Srivatsa]

Move to using the new API devm_drm_panel_alloc() to allocate the
panel.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
---
v2: none
---
 drivers/gpu/drm/panel/panel-samsung-s6e3ha8.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-samsung-s6e3ha8.c b/drivers/gpu/drm/panel/panel-samsung-s6e3ha8.c
index 64c6f7d45bed3d77215666d05619a55f1220bf45..550e9ef9bb71b53a327ae9de8e0e4c3b458937d6 100644
--- a/drivers/gpu/drm/panel/panel-samsung-s6e3ha8.c
+++ b/drivers/gpu/drm/panel/panel-samsung-s6e3ha8.c
@@ -253,9 +253,11 @@ static int s6e3ha8_amb577px01_wqhd_probe(struct mipi_dsi_device *dsi)
 	struct s6e3ha8 *priv;
 	int ret;
 
-	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
-	if (!priv)
-		return -ENOMEM;
+	priv = devm_drm_panel_alloc(dev, struct s6e3ha8, panel,
+				    &s6e3ha8_amb577px01_wqhd_panel_funcs,
+				    DRM_MODE_CONNECTOR_DSI);
+	if (IS_ERR(priv))
+		return PTR_ERR(priv);
 
 	ret = devm_regulator_bulk_get_const(dev, ARRAY_SIZE(s6e3ha8_supplies),
 				      s6e3ha8_supplies,
@@ -279,8 +281,6 @@ static int s6e3ha8_amb577px01_wqhd_probe(struct mipi_dsi_device *dsi)
 		MIPI_DSI_MODE_VIDEO_NO_HFP | MIPI_DSI_MODE_VIDEO_NO_HBP |
 		MIPI_DSI_MODE_VIDEO_NO_HSA | MIPI_DSI_MODE_NO_EOT_PACKET;
 
-	drm_panel_init(&priv->panel, dev, &s6e3ha8_amb577px01_wqhd_panel_funcs,
-		       DRM_MODE_CONNECTOR_DSI);
 	priv->panel.prepare_prev_first = true;
 
 	drm_panel_add(&priv->panel);

-- 
2.48.1

[PATCH v2 19/46] panel/samsung-s6e63j0x03: Use refcounted allocation in place of devm_kzalloc()

[Anusha Srivatsa]

Move to using the new API devm_drm_panel_alloc() to allocate the
panel.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
---
v2: none.
---
 drivers/gpu/drm/panel/panel-samsung-s6e63j0x03.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-samsung-s6e63j0x03.c b/drivers/gpu/drm/panel/panel-samsung-s6e63j0x03.c
index 364f1c9a16d9abd410dfc233f40ce797c37da3e7..6f3d39556f92294a693b6a8d85f80f25fdb43c65 100644
--- a/drivers/gpu/drm/panel/panel-samsung-s6e63j0x03.c
+++ b/drivers/gpu/drm/panel/panel-samsung-s6e63j0x03.c
@@ -437,9 +437,11 @@ static int s6e63j0x03_probe(struct mipi_dsi_device *dsi)
 	struct s6e63j0x03 *ctx;
 	int ret;
 
-	ctx = devm_kzalloc(dev, sizeof(struct s6e63j0x03), GFP_KERNEL);
-	if (!ctx)
-		return -ENOMEM;
+	ctx = devm_drm_panel_alloc(dev, struct s6e63j0x03, panel,
+				   &s6e63j0x03_funcs,
+				   DRM_MODE_CONNECTOR_DSI);
+	if (IS_ERR(ctx))
+		return PTR_ERR(ctx);
 
 	mipi_dsi_set_drvdata(dsi, ctx);
 
@@ -462,8 +464,6 @@ static int s6e63j0x03_probe(struct mipi_dsi_device *dsi)
 		return dev_err_probe(dev, PTR_ERR(ctx->reset_gpio),
 				     "cannot get reset-gpio\n");
 
-	drm_panel_init(&ctx->panel, dev, &s6e63j0x03_funcs,
-		       DRM_MODE_CONNECTOR_DSI);
 	ctx->panel.prepare_prev_first = true;
 
 	ctx->bl_dev = backlight_device_register("s6e63j0x03", dev, ctx,

-- 
2.48.1

[PATCH v2 20/46] panel/s6e88a0-ams427ap24: Use refcounted allocation in place of devm_kzalloc()

[Anusha Srivatsa]

Move to using the new API devm_drm_panel_alloc() to allocate the
panel.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
---
v2: none.
---
 drivers/gpu/drm/panel/panel-samsung-s6e88a0-ams427ap24.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-samsung-s6e88a0-ams427ap24.c b/drivers/gpu/drm/panel/panel-samsung-s6e88a0-ams427ap24.c
index e92e95158d1f2a50c1bef77b01103a80210b542f..e91f506629975f2c2cc40d91d79576406ae35ca2 100644
--- a/drivers/gpu/drm/panel/panel-samsung-s6e88a0-ams427ap24.c
+++ b/drivers/gpu/drm/panel/panel-samsung-s6e88a0-ams427ap24.c
@@ -687,9 +687,11 @@ static int s6e88a0_ams427ap24_probe(struct mipi_dsi_device *dsi)
 	struct s6e88a0_ams427ap24 *ctx;
 	int ret;
 
-	ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
-	if (!ctx)
-		return -ENOMEM;
+	ctx = devm_drm_panel_alloc(dev, struct s6e88a0_ams427ap24, panel,
+				   &s6e88a0_ams427ap24_panel_funcs,
+				   DRM_MODE_CONNECTOR_DSI);
+	if (IS_ERR(ctx))
+		return PTR_ERR(ctx);
 
 	ret = devm_regulator_bulk_get_const(dev,
 				      ARRAY_SIZE(s6e88a0_ams427ap24_supplies),
@@ -711,8 +713,6 @@ static int s6e88a0_ams427ap24_probe(struct mipi_dsi_device *dsi)
 	dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
 			  MIPI_DSI_MODE_NO_EOT_PACKET | MIPI_DSI_MODE_VIDEO_NO_HFP;
 
-	drm_panel_init(&ctx->panel, dev, &s6e88a0_ams427ap24_panel_funcs,
-		       DRM_MODE_CONNECTOR_DSI);
 	ctx->panel.prepare_prev_first = true;
 
 	ctx->flip_horizontal = device_property_read_bool(dev, "flip-horizontal");

-- 
2.48.1

[PATCH v2 21/46] panel/samsung-s6e8aa0: Use refcounted allocation in place of devm_kzalloc()

[Anusha Srivatsa]

Move to using the new API devm_drm_panel_alloc() to allocate the
panel.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
---
v2: minor refactor. Use dev instead of &dsi->dev.
---
 drivers/gpu/drm/panel/panel-samsung-s6e8aa0.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-samsung-s6e8aa0.c b/drivers/gpu/drm/panel/panel-samsung-s6e8aa0.c
index c51d07ec15295f81d4c2c07fcd5b58fdab18b084..897df195f2f3437224d1fe9f42d0bfc761541ab2 100644
--- a/drivers/gpu/drm/panel/panel-samsung-s6e8aa0.c
+++ b/drivers/gpu/drm/panel/panel-samsung-s6e8aa0.c
@@ -979,9 +979,11 @@ static int s6e8aa0_probe(struct mipi_dsi_device *dsi)
 	struct s6e8aa0 *ctx;
 	int ret;
 
-	ctx = devm_kzalloc(dev, sizeof(struct s6e8aa0), GFP_KERNEL);
-	if (!ctx)
-		return -ENOMEM;
+	ctx = devm_drm_panel_alloc(dev, struct s6e8aa0, panel,
+				   &s6e8aa0_drm_funcs,
+				   DRM_MODE_CONNECTOR_DSI);
+	if (IS_ERR(ctx))
+		return PTR_ERR(ctx);
 
 	mipi_dsi_set_drvdata(dsi, ctx);
 
@@ -1014,8 +1016,6 @@ static int s6e8aa0_probe(struct mipi_dsi_device *dsi)
 
 	ctx->brightness = GAMMA_LEVEL_NUM - 1;
 
-	drm_panel_init(&ctx->panel, dev, &s6e8aa0_drm_funcs,
-		       DRM_MODE_CONNECTOR_DSI);
 	ctx->panel.prepare_prev_first = true;
 
 	drm_panel_add(&ctx->panel);

-- 
2.48.1

[PATCH v2 22/46] panel/samsung-sofef00: Use refcounted allocation in place of devm_kzalloc()

[Anusha Srivatsa]

Move to using the new API devm_drm_panel_alloc() to allocate the
panel.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
---
v2: none.
---
 drivers/gpu/drm/panel/panel-samsung-sofef00.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-samsung-sofef00.c b/drivers/gpu/drm/panel/panel-samsung-sofef00.c
index 210a25afe82bf9fcee0e626ade398913e4c34cef..72c4a7e9e9d232da43cc79757df4f365be8a4504 100644
--- a/drivers/gpu/drm/panel/panel-samsung-sofef00.c
+++ b/drivers/gpu/drm/panel/panel-samsung-sofef00.c
@@ -191,9 +191,11 @@ static int sofef00_panel_probe(struct mipi_dsi_device *dsi)
 	struct sofef00_panel *ctx;
 	int ret;
 
-	ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
-	if (!ctx)
-		return -ENOMEM;
+	ctx = devm_drm_panel_alloc(dev, struct sofef00_panel, panel,
+				   &sofef00_panel_panel_funcs,
+				   DRM_MODE_CONNECTOR_DSI);
+	if (IS_ERR(ctx))
+		return PTR_ERR(ctx);
 
 	ctx->supply = devm_regulator_get(dev, "vddio");
 	if (IS_ERR(ctx->supply))
@@ -211,9 +213,6 @@ static int sofef00_panel_probe(struct mipi_dsi_device *dsi)
 	dsi->lanes = 4;
 	dsi->format = MIPI_DSI_FMT_RGB888;
 
-	drm_panel_init(&ctx->panel, dev, &sofef00_panel_panel_funcs,
-		       DRM_MODE_CONNECTOR_DSI);
-
 	ctx->panel.backlight = sofef00_create_backlight(dsi);
 	if (IS_ERR(ctx->panel.backlight))
 		return dev_err_probe(dev, PTR_ERR(ctx->panel.backlight),

-- 
2.48.1

[PATCH v2 23/46] panel/seiko-43wvf1g: Use refcounted allocation in place of devm_kzalloc()

[Anusha Srivatsa]

Move to using the new API devm_drm_panel_alloc() to allocate the
panel.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
---
v2: Use the correct connector.
---
 drivers/gpu/drm/panel/panel-seiko-43wvf1g.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-seiko-43wvf1g.c b/drivers/gpu/drm/panel/panel-seiko-43wvf1g.c
index 7d1b421ea9ddfcf84850a2fc589f7a43e24fc167..0935d83ee2db3cbec5744adfc6d1ad933537e580 100644
--- a/drivers/gpu/drm/panel/panel-seiko-43wvf1g.c
+++ b/drivers/gpu/drm/panel/panel-seiko-43wvf1g.c
@@ -204,9 +204,11 @@ static int seiko_panel_probe(struct device *dev,
 	struct seiko_panel *panel;
 	int err;
 
-	panel = devm_kzalloc(dev, sizeof(*panel), GFP_KERNEL);
-	if (!panel)
-		return -ENOMEM;
+	panel = devm_drm_panel_alloc(dev, struct seiko_panel, base,
+				     &seiko_panel_funcs,
+				     DRM_MODE_CONNECTOR_DPI);
+	if (IS_ERR(panel))
+		return PTR_ERR(panel);
 
 	panel->desc = desc;
 
@@ -224,9 +226,6 @@ static int seiko_panel_probe(struct device *dev,
 		return dev_err_probe(dev, PTR_ERR(panel->enable_gpio),
 				     "failed to request GPIO\n");
 
-	drm_panel_init(&panel->base, dev, &seiko_panel_funcs,
-		       DRM_MODE_CONNECTOR_DPI);
-
 	err = drm_panel_of_backlight(&panel->base);
 	if (err)
 		return err;

-- 
2.48.1

[PATCH v2 24/46] panel/sharp-ls037v7dw01: Use refcounted allocation in place of devm_kzalloc()

[Anusha Srivatsa]

Move to using the new API devm_drm_panel_alloc() to allocate the
panel.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
---
v2: none.
---
 drivers/gpu/drm/panel/panel-sharp-ls037v7dw01.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-sharp-ls037v7dw01.c b/drivers/gpu/drm/panel/panel-sharp-ls037v7dw01.c
index a9673a52b861553792c9814da54a08043eb773e8..938beac4655d0bad6deaf93c7c1957403a446f20 100644
--- a/drivers/gpu/drm/panel/panel-sharp-ls037v7dw01.c
+++ b/drivers/gpu/drm/panel/panel-sharp-ls037v7dw01.c
@@ -138,9 +138,10 @@ static int ls037v7dw01_probe(struct platform_device *pdev)
 {
 	struct ls037v7dw01_panel *lcd;
 
-	lcd = devm_kzalloc(&pdev->dev, sizeof(*lcd), GFP_KERNEL);
-	if (!lcd)
-		return -ENOMEM;
+	lcd = devm_drm_panel_alloc(&pdev->dev, struct ls037v7dw01_panel, panel,
+				   &ls037v7dw01_funcs, DRM_MODE_CONNECTOR_DPI);
+	if (IS_ERR(lcd))
+		return PTR_ERR(lcd);
 
 	platform_set_drvdata(pdev, lcd);
 	lcd->pdev = pdev;
@@ -181,9 +182,6 @@ static int ls037v7dw01_probe(struct platform_device *pdev)
 		return PTR_ERR(lcd->ud_gpio);
 	}
 
-	drm_panel_init(&lcd->panel, &pdev->dev, &ls037v7dw01_funcs,
-		       DRM_MODE_CONNECTOR_DPI);
-
 	drm_panel_add(&lcd->panel);
 
 	return 0;

-- 
2.48.1

[PATCH v2 25/46] panel/sharp-ls060t1sx01: Use refcounted allocation in place of devm_kzalloc()

[Anusha Srivatsa]

Move to using the new API devm_drm_panel_alloc() to allocate the
panel.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
---
v2: none.
---
 drivers/gpu/drm/panel/panel-sharp-ls060t1sx01.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-sharp-ls060t1sx01.c b/drivers/gpu/drm/panel/panel-sharp-ls060t1sx01.c
index 0b4e0983639bd6e0b1b81df04331e9957414d4f3..0456f3d705e72e53255c20b42d50423721c9d906 100644
--- a/drivers/gpu/drm/panel/panel-sharp-ls060t1sx01.c
+++ b/drivers/gpu/drm/panel/panel-sharp-ls060t1sx01.c
@@ -193,9 +193,11 @@ static int sharp_ls060_probe(struct mipi_dsi_device *dsi)
 	struct sharp_ls060 *ctx;
 	int ret;
 
-	ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
-	if (!ctx)
-		return -ENOMEM;
+	ctx = devm_drm_panel_alloc(dev, struct sharp_ls060, panel,
+				   &sharp_ls060_panel_funcs,
+				   DRM_MODE_CONNECTOR_DSI);
+	if (IS_ERR(ctx))
+		return PTR_ERR(ctx);
 
 	ctx->vddi_supply = devm_regulator_get(dev, "vddi");
 	if (IS_ERR(ctx->vddi_supply))
@@ -227,9 +229,6 @@ static int sharp_ls060_probe(struct mipi_dsi_device *dsi)
 			  MIPI_DSI_MODE_NO_EOT_PACKET |
 			  MIPI_DSI_CLOCK_NON_CONTINUOUS;
 
-	drm_panel_init(&ctx->panel, dev, &sharp_ls060_panel_funcs,
-		       DRM_MODE_CONNECTOR_DSI);
-
 	ret = drm_panel_of_backlight(&ctx->panel);
 	if (ret)
 		return dev_err_probe(dev, ret, "Failed to get backlight\n");

-- 
2.48.1

[PATCH v2 26/46] panel/sitronix-st7701: Use refcounted allocation in place of devm_kzalloc()

[Anusha Srivatsa]

Move to using the new API devm_drm_panel_alloc() to allocate the
panel.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
---
v2: none.
---
 drivers/gpu/drm/panel/panel-sitronix-st7701.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-sitronix-st7701.c b/drivers/gpu/drm/panel/panel-sitronix-st7701.c
index 1f72ef7ca74c9382aa103cc7c65fdedc7e4755b3..0b83423ce470c4e060c3cd44d38719a412d3cb95 100644
--- a/drivers/gpu/drm/panel/panel-sitronix-st7701.c
+++ b/drivers/gpu/drm/panel/panel-sitronix-st7701.c
@@ -1150,9 +1150,10 @@ static int st7701_probe(struct device *dev, int connector_type)
 	struct st7701 *st7701;
 	int ret;
 
-	st7701 = devm_kzalloc(dev, sizeof(*st7701), GFP_KERNEL);
-	if (!st7701)
-		return -ENOMEM;
+	st7701 = devm_drm_panel_alloc(dev, struct st7701, panel, &st7701_funcs,
+				      connector_type);
+	if (IS_ERR(st7701))
+		return PTR_ERR(st7701);
 
 	desc = of_device_get_match_data(dev);
 	if (!desc)
@@ -1176,7 +1177,6 @@ static int st7701_probe(struct device *dev, int connector_type)
 	if (ret < 0)
 		return dev_err_probe(dev, ret, "Failed to get orientation\n");
 
-	drm_panel_init(&st7701->panel, dev, &st7701_funcs, connector_type);
 	st7701->panel.prepare_prev_first = true;
 
 	/**

-- 
2.48.1

[PATCH v2 27/46] panel/sitronix-st7703: Use refcounted allocation in place of devm_kzalloc()

[Anusha Srivatsa]

Move to using the new API devm_drm_panel_alloc() to allocate the
panel.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
---
v2: none.
---
 drivers/gpu/drm/panel/panel-sitronix-st7703.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-sitronix-st7703.c b/drivers/gpu/drm/panel/panel-sitronix-st7703.c
index 67e8e45498cb1e62c60cc94546cb329878cc4ef2..1a007a244d843a894c89bb3b2ee006daba2237cb 100644
--- a/drivers/gpu/drm/panel/panel-sitronix-st7703.c
+++ b/drivers/gpu/drm/panel/panel-sitronix-st7703.c
@@ -846,9 +846,11 @@ static int st7703_probe(struct mipi_dsi_device *dsi)
 	struct st7703 *ctx;
 	int ret;
 
-	ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
-	if (!ctx)
-		return -ENOMEM;
+	ctx = devm_drm_panel_alloc(dev, struct st7703, panel,
+				   &st7703_drm_funcs,
+				   DRM_MODE_CONNECTOR_DSI);
+	if (IS_ERR(ctx))
+		return PTR_ERR(ctx);
 
 	ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
 	if (IS_ERR(ctx->reset_gpio))
@@ -876,9 +878,6 @@ static int st7703_probe(struct mipi_dsi_device *dsi)
 	if (ret < 0)
 		return dev_err_probe(&dsi->dev, ret, "Failed to get orientation\n");
 
-	drm_panel_init(&ctx->panel, dev, &st7703_drm_funcs,
-		       DRM_MODE_CONNECTOR_DSI);
-
 	ret = drm_panel_of_backlight(&ctx->panel);
 	if (ret)
 		return ret;

-- 
2.48.1

[PATCH v2 28/46] panel/sitronix-st7789v: Use refcounted allocation in place of devm_kzalloc()

[Anusha Srivatsa]

Move to using the new API devm_drm_panel_alloc() to allocate the
panel.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
---
v2: none.
---
 drivers/gpu/drm/panel/panel-sitronix-st7789v.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-sitronix-st7789v.c b/drivers/gpu/drm/panel/panel-sitronix-st7789v.c
index 28bfc48a91272901862dcaa309f51da4697d0a4a..04d91929eedda092b966b8cffdef5b267748f190 100644
--- a/drivers/gpu/drm/panel/panel-sitronix-st7789v.c
+++ b/drivers/gpu/drm/panel/panel-sitronix-st7789v.c
@@ -612,9 +612,10 @@ static int st7789v_probe(struct spi_device *spi)
 	struct st7789v *ctx;
 	int ret;
 
-	ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
-	if (!ctx)
-		return -ENOMEM;
+	ctx = devm_drm_panel_alloc(dev, struct st7789v, panel,
+				   &st7789v_drm_funcs, DRM_MODE_CONNECTOR_DPI);
+	if (IS_ERR(ctx))
+		return PTR_ERR(ctx);
 
 	spi_set_drvdata(spi, ctx);
 	ctx->spi = spi;
@@ -626,9 +627,6 @@ static int st7789v_probe(struct spi_device *spi)
 
 	ctx->info = device_get_match_data(&spi->dev);
 
-	drm_panel_init(&ctx->panel, dev, &st7789v_drm_funcs,
-		       DRM_MODE_CONNECTOR_DPI);
-
 	ctx->power = devm_regulator_get(dev, "power");
 	ret = PTR_ERR_OR_ZERO(ctx->power);
 	if (ret)

-- 
2.48.1

[PATCH v2 29/46] panel/sony-acx565akm: Use refcounted allocation in place of devm_kzalloc()

[Anusha Srivatsa]

Move to using the new API devm_drm_panel_alloc() to allocate the
panel.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
---
v2: none.
---
 drivers/gpu/drm/panel/panel-sony-acx565akm.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-sony-acx565akm.c b/drivers/gpu/drm/panel/panel-sony-acx565akm.c
index d437f5c84f5f0915ec9a3b3a899cb8bd41209c77..fe043de791b0f5ee725a14210436cc00ce7789e7 100644
--- a/drivers/gpu/drm/panel/panel-sony-acx565akm.c
+++ b/drivers/gpu/drm/panel/panel-sony-acx565akm.c
@@ -607,9 +607,10 @@ static int acx565akm_probe(struct spi_device *spi)
 	struct acx565akm_panel *lcd;
 	int ret;
 
-	lcd = devm_kzalloc(&spi->dev, sizeof(*lcd), GFP_KERNEL);
-	if (!lcd)
-		return -ENOMEM;
+	lcd = devm_drm_panel_alloc(&spi->dev, struct acx565akm_panel, panel,
+				   &acx565akm_funcs, DRM_MODE_CONNECTOR_DPI);
+	if (IS_ERR(lcd))
+		return PTR_ERR(lcd);
 
 	spi_set_drvdata(spi, lcd);
 	spi->mode = SPI_MODE_3;
@@ -635,9 +636,6 @@ static int acx565akm_probe(struct spi_device *spi)
 			return ret;
 	}
 
-	drm_panel_init(&lcd->panel, &lcd->spi->dev, &acx565akm_funcs,
-		       DRM_MODE_CONNECTOR_DPI);
-
 	drm_panel_add(&lcd->panel);
 
 	return 0;

-- 
2.48.1

Re: [PATCH v2 29/46] panel/sony-acx565akm: Use refcounted allocation in place of devm_kzalloc()

[Linus Walleij]

On Fri, May 30, 2025 at 4:52 AM Anusha Srivatsa <asrivats@redhat.com> wrote:

> Move to using the new API devm_drm_panel_alloc() to allocate the
> panel.
>
> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
> Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>

Yours,
Linus Walleij

[PATCH v2 30/46] panel/sony-td4353-jdi: Use refcounted allocation in place of devm_kzalloc()

[Anusha Srivatsa]

Move to using the new API devm_drm_panel_alloc() to allocate the
panel.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
---
v2: none.
---
 drivers/gpu/drm/panel/panel-sony-td4353-jdi.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-sony-td4353-jdi.c b/drivers/gpu/drm/panel/panel-sony-td4353-jdi.c
index 97f4bb4e10297532b3e0762db3433187ca6240f3..7c989b70ab513084d28379f347c9851a350e433e 100644
--- a/drivers/gpu/drm/panel/panel-sony-td4353-jdi.c
+++ b/drivers/gpu/drm/panel/panel-sony-td4353-jdi.c
@@ -175,9 +175,11 @@ static int sony_td4353_jdi_probe(struct mipi_dsi_device *dsi)
 	struct sony_td4353_jdi *ctx;
 	int ret;
 
-	ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
-	if (!ctx)
-		return -ENOMEM;
+	ctx = devm_drm_panel_alloc(dev, struct sony_td4353_jdi, panel,
+				   &sony_td4353_jdi_panel_funcs,
+				   DRM_MODE_CONNECTOR_DSI);
+	if (IS_ERR(ctx))
+		return PTR_ERR(ctx);
 
 	ctx->type = (uintptr_t)of_device_get_match_data(dev);
 
@@ -206,9 +208,6 @@ static int sony_td4353_jdi_probe(struct mipi_dsi_device *dsi)
 	dsi->format = MIPI_DSI_FMT_RGB888;
 	dsi->mode_flags = MIPI_DSI_CLOCK_NON_CONTINUOUS;
 
-	drm_panel_init(&ctx->panel, dev, &sony_td4353_jdi_panel_funcs,
-		       DRM_MODE_CONNECTOR_DSI);
-
 	ret = drm_panel_of_backlight(&ctx->panel);
 	if (ret)
 		return dev_err_probe(dev, ret, "Failed to get backlight\n");

-- 
2.48.1

[PATCH v2 31/46] panel/truly-nt35521: Use refcounted allocation in place of devm_kzalloc()

[Anusha Srivatsa]

Move to using the new API devm_drm_panel_alloc() to allocate the
panel.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
---
v2: none.
---
 drivers/gpu/drm/panel/panel-sony-tulip-truly-nt35521.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-sony-tulip-truly-nt35521.c b/drivers/gpu/drm/panel/panel-sony-tulip-truly-nt35521.c
index 104b2290560e366cd514617f04233e4940d7bb03..216a6ad8696e91c4ea717476d46105b7d636b765 100644
--- a/drivers/gpu/drm/panel/panel-sony-tulip-truly-nt35521.c
+++ b/drivers/gpu/drm/panel/panel-sony-tulip-truly-nt35521.c
@@ -433,9 +433,11 @@ static int truly_nt35521_probe(struct mipi_dsi_device *dsi)
 	struct truly_nt35521 *ctx;
 	int ret;
 
-	ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
-	if (!ctx)
-		return -ENOMEM;
+	ctx = devm_drm_panel_alloc(dev, struct truly_nt35521, panel,
+				   &truly_nt35521_panel_funcs,
+				   DRM_MODE_CONNECTOR_DSI);
+	if (IS_ERR(ctx))
+		return PTR_ERR(ctx);
 
 	ctx->supplies[0].supply = "positive5";
 	ctx->supplies[1].supply = "negative5";
@@ -465,9 +467,6 @@ static int truly_nt35521_probe(struct mipi_dsi_device *dsi)
 			  MIPI_DSI_MODE_VIDEO_HSE | MIPI_DSI_MODE_NO_EOT_PACKET |
 			  MIPI_DSI_CLOCK_NON_CONTINUOUS;
 
-	drm_panel_init(&ctx->panel, dev, &truly_nt35521_panel_funcs,
-		       DRM_MODE_CONNECTOR_DSI);
-
 	ctx->panel.backlight = truly_nt35521_create_backlight(dsi);
 	if (IS_ERR(ctx->panel.backlight))
 		return dev_err_probe(dev, PTR_ERR(ctx->panel.backlight),

-- 
2.48.1

Re: [PATCH v2 31/46] panel/truly-nt35521: Use refcounted allocation in place of devm_kzalloc()

[Linus Walleij]

On Fri, May 30, 2025 at 4:52 AM Anusha Srivatsa <asrivats@redhat.com> wrote:

> Move to using the new API devm_drm_panel_alloc() to allocate the
> panel.
>
> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
> Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>

Yours,
Linus Walleij

[PATCH v2 32/46] panel/panel-summit: Use refcounted allocation in place of devm_kzalloc()

[Anusha Srivatsa]

Move to using the new API devm_drm_panel_alloc() to allocate the
panel.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
---
v2: refactor.Use already dereferenced dev instead of &dsi->dev.
---
 drivers/gpu/drm/panel/panel-summit.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-summit.c b/drivers/gpu/drm/panel/panel-summit.c
index e780faee18570c9970d381b3f7c65b95665469cd..4854437e2899126c74d8060433a9064cc3812de7 100644
--- a/drivers/gpu/drm/panel/panel-summit.c
+++ b/drivers/gpu/drm/panel/panel-summit.c
@@ -68,9 +68,11 @@ static int summit_probe(struct mipi_dsi_device *dsi)
 	struct summit_data *s_data;
 	int ret;
 
-	s_data = devm_kzalloc(dev, sizeof(*s_data), GFP_KERNEL);
-	if (!s_data)
-		return -ENOMEM;
+	s_data = devm_drm_panel_alloc(dev, struct summit_data, panel,
+				      &summit_panel_funcs,
+				      DRM_MODE_CONNECTOR_DSI);
+	if (IS_ERR(s_data))
+		return PTR_ERR(s_data);
 
 	mipi_dsi_set_drvdata(dsi, s_data);
 	s_data->dsi = dsi;
@@ -85,8 +87,6 @@ static int summit_probe(struct mipi_dsi_device *dsi)
 	if (IS_ERR(s_data->bl))
 		return PTR_ERR(s_data->bl);
 
-	drm_panel_init(&s_data->panel, dev, &summit_panel_funcs,
-		       DRM_MODE_CONNECTOR_DSI);
 	drm_panel_add(&s_data->panel);
 
 	return mipi_dsi_attach(dsi);

-- 
2.48.1

[PATCH v2 33/46] panel/synaptics-r63353: allocation in place of devm_kzalloc()

[Anusha Srivatsa]

Move to using the new API devm_drm_panel_alloc() to allocate the
panel.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
---
v2: none.
---
 drivers/gpu/drm/panel/panel-synaptics-r63353.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-synaptics-r63353.c b/drivers/gpu/drm/panel/panel-synaptics-r63353.c
index b148e6cba9bd1184a8c3e9e264e31536ad78ce28..3a74d48753d9c55d4b5618fbc1167f28bc5f6c5e 100644
--- a/drivers/gpu/drm/panel/panel-synaptics-r63353.c
+++ b/drivers/gpu/drm/panel/panel-synaptics-r63353.c
@@ -229,9 +229,11 @@ static int r63353_panel_probe(struct mipi_dsi_device *dsi)
 	struct device *dev = &dsi->dev;
 	struct r63353_panel *panel;
 
-	panel = devm_kzalloc(&dsi->dev, sizeof(*panel), GFP_KERNEL);
-	if (!panel)
-		return -ENOMEM;
+	panel = devm_drm_panel_alloc(dev, struct r63353_panel, base,
+				     &r63353_panel_funcs,
+				     DRM_MODE_CONNECTOR_DSI);
+	if (IS_ERR(panel))
+		return PTR_ERR(panel);
 
 	mipi_dsi_set_drvdata(dsi, panel);
 	panel->dsi = dsi;
@@ -258,9 +260,6 @@ static int r63353_panel_probe(struct mipi_dsi_device *dsi)
 		return PTR_ERR(panel->reset_gpio);
 	}
 
-	drm_panel_init(&panel->base, dev, &r63353_panel_funcs,
-		       DRM_MODE_CONNECTOR_DSI);
-
 	panel->base.prepare_prev_first = true;
 	ret = drm_panel_of_backlight(&panel->base);
 	if (ret)

-- 
2.48.1

[PATCH v2 34/46] panel/tpo-td028ttec1: Use refcounted allocation in place of devm_kzalloc()

[Anusha Srivatsa]

Move to using the new API devm_drm_panel_alloc() to allocate the
panel.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
---
v2: none.
---
 drivers/gpu/drm/panel/panel-tpo-td028ttec1.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-tpo-td028ttec1.c b/drivers/gpu/drm/panel/panel-tpo-td028ttec1.c
index 4dbf8b88f264f7afcacf2ae8f67704f5a7505341..af7e2047fc1f16ef6aa7bf22800664137291c526 100644
--- a/drivers/gpu/drm/panel/panel-tpo-td028ttec1.c
+++ b/drivers/gpu/drm/panel/panel-tpo-td028ttec1.c
@@ -322,9 +322,11 @@ static int td028ttec1_probe(struct spi_device *spi)
 	struct td028ttec1_panel *lcd;
 	int ret;
 
-	lcd = devm_kzalloc(&spi->dev, sizeof(*lcd), GFP_KERNEL);
-	if (!lcd)
-		return -ENOMEM;
+	lcd = devm_drm_panel_alloc(&spi->dev, struct td028ttec1_panel, panel,
+				   &td028ttec1_funcs,
+				   DRM_MODE_CONNECTOR_DPI);
+	if (IS_ERR(lcd))
+		return PTR_ERR(lcd);
 
 	spi_set_drvdata(spi, lcd);
 	lcd->spi = spi;
@@ -338,9 +340,6 @@ static int td028ttec1_probe(struct spi_device *spi)
 		return ret;
 	}
 
-	drm_panel_init(&lcd->panel, &lcd->spi->dev, &td028ttec1_funcs,
-		       DRM_MODE_CONNECTOR_DPI);
-
 	ret = drm_panel_of_backlight(&lcd->panel);
 	if (ret)
 		return ret;

-- 
2.48.1

[PATCH v2 35/46] panel/tpo-td043mtea1: Use refcounted allocation in place of devm_kzalloc()

[Anusha Srivatsa]

Move to using the new API devm_drm_panel_alloc() to allocate the
panel.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
---
v2: none.
---
 drivers/gpu/drm/panel/panel-tpo-td043mtea1.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-tpo-td043mtea1.c b/drivers/gpu/drm/panel/panel-tpo-td043mtea1.c
index cf4609bb9b1da969973ac0ecc67436185691941a..b18af526b54c5e1580be8eb20b9bacf218c825ee 100644
--- a/drivers/gpu/drm/panel/panel-tpo-td043mtea1.c
+++ b/drivers/gpu/drm/panel/panel-tpo-td043mtea1.c
@@ -421,9 +421,10 @@ static int td043mtea1_probe(struct spi_device *spi)
 	struct td043mtea1_panel *lcd;
 	int ret;
 
-	lcd = devm_kzalloc(&spi->dev, sizeof(*lcd), GFP_KERNEL);
-	if (lcd == NULL)
-		return -ENOMEM;
+	lcd = devm_drm_panel_alloc(&spi->dev, struct td043mtea1_panel, panel,
+				   &td043mtea1_funcs, DRM_MODE_CONNECTOR_DPI);
+	if (IS_ERR(lcd))
+		return PTR_ERR(lcd);
 
 	spi_set_drvdata(spi, lcd);
 	lcd->spi = spi;
@@ -455,9 +456,6 @@ static int td043mtea1_probe(struct spi_device *spi)
 		return ret;
 	}
 
-	drm_panel_init(&lcd->panel, &lcd->spi->dev, &td043mtea1_funcs,
-		       DRM_MODE_CONNECTOR_DPI);
-
 	drm_panel_add(&lcd->panel);
 
 	return 0;

-- 
2.48.1

[PATCH v2 36/46] panel/tpo-tpg110: Use refcounted allocation in place of devm_kzalloc()

[Anusha Srivatsa]

Move to using the new API devm_drm_panel_alloc() to allocate the
panel.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
---
v2: none.
---
 drivers/gpu/drm/panel/panel-tpo-tpg110.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-tpo-tpg110.c b/drivers/gpu/drm/panel/panel-tpo-tpg110.c
index f6a212e542cb9301cab1ad19c43e00e4ea07b128..0beba5c08956571aee5c253e460a9d020b800009 100644
--- a/drivers/gpu/drm/panel/panel-tpo-tpg110.c
+++ b/drivers/gpu/drm/panel/panel-tpo-tpg110.c
@@ -405,9 +405,11 @@ static int tpg110_probe(struct spi_device *spi)
 	struct tpg110 *tpg;
 	int ret;
 
-	tpg = devm_kzalloc(dev, sizeof(*tpg), GFP_KERNEL);
-	if (!tpg)
-		return -ENOMEM;
+	tpg = devm_drm_panel_alloc(dev, struct tpg110, panel,
+				   &tpg110_drm_funcs, DRM_MODE_CONNECTOR_DPI);
+	if (IS_ERR(tpg))
+		return PTR_ERR(tpg);
+
 	tpg->dev = dev;
 
 	/* We get the physical display dimensions from the DT */
@@ -438,9 +440,6 @@ static int tpg110_probe(struct spi_device *spi)
 	if (ret)
 		return ret;
 
-	drm_panel_init(&tpg->panel, dev, &tpg110_drm_funcs,
-		       DRM_MODE_CONNECTOR_DPI);
-
 	ret = drm_panel_of_backlight(&tpg->panel);
 	if (ret)
 		return ret;

-- 
2.48.1

Re: [PATCH v2 36/46] panel/tpo-tpg110: Use refcounted allocation in place of devm_kzalloc()

[Linus Walleij]

On Fri, May 30, 2025 at 4:52 AM Anusha Srivatsa <asrivats@redhat.com> wrote:

> Move to using the new API devm_drm_panel_alloc() to allocate the
> panel.
>
> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
> Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>

Yours,
Linus Walleij

[PATCH v2 37/46] panel/visionox-r66451: Use refcounted allocation in place of devm_kzalloc()

[Anusha Srivatsa]

Move to using the new API devm_drm_panel_alloc() to allocate the
panel.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
---
v2: none.
---
 drivers/gpu/drm/panel/panel-visionox-r66451.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-visionox-r66451.c b/drivers/gpu/drm/panel/panel-visionox-r66451.c
index 3ea0a86f6e69f3cf0c759d38a21582797bd379bd..690cccedd438fe000ab9b7b4e912988d64a9ad35 100644
--- a/drivers/gpu/drm/panel/panel-visionox-r66451.c
+++ b/drivers/gpu/drm/panel/panel-visionox-r66451.c
@@ -255,9 +255,11 @@ static int visionox_r66451_probe(struct mipi_dsi_device *dsi)
 	struct drm_dsc_config *dsc;
 	int ret = 0;
 
-	ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
-	if (!ctx)
-		return -ENOMEM;
+	ctx = devm_drm_panel_alloc(dev, struct visionox_r66451, panel,
+				   &visionox_r66451_funcs,
+				   DRM_MODE_CONNECTOR_DSI);
+	if (IS_ERR(ctx))
+		return PTR_ERR(ctx);
 
 	dsc = devm_kzalloc(dev, sizeof(*dsc), GFP_KERNEL);
 	if (!dsc)
@@ -297,7 +299,6 @@ static int visionox_r66451_probe(struct mipi_dsi_device *dsi)
 	dsi->mode_flags = MIPI_DSI_MODE_LPM | MIPI_DSI_CLOCK_NON_CONTINUOUS;
 	ctx->panel.prepare_prev_first = true;
 
-	drm_panel_init(&ctx->panel, dev, &visionox_r66451_funcs, DRM_MODE_CONNECTOR_DSI);
 	ctx->panel.backlight = visionox_r66451_create_backlight(dsi);
 	if (IS_ERR(ctx->panel.backlight))
 		return dev_err_probe(dev, PTR_ERR(ctx->panel.backlight),

-- 
2.48.1

[PATCH v2 38/46] panel/visionox-rm69299: Use refcounted allocation in place of devm_kzalloc()

[Anusha Srivatsa]

Move to using the new API devm_drm_panel_alloc() to allocate the
panel.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
---
v2: none.
---
 drivers/gpu/drm/panel/panel-visionox-rm69299.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-visionox-rm69299.c b/drivers/gpu/drm/panel/panel-visionox-rm69299.c
index be3a9797fbced5222b313cf83f8078b919e2c219..2b091d88bf4a507e58f55a260e7ed1fea93a0439 100644
--- a/drivers/gpu/drm/panel/panel-visionox-rm69299.c
+++ b/drivers/gpu/drm/panel/panel-visionox-rm69299.c
@@ -187,9 +187,11 @@ static int visionox_rm69299_probe(struct mipi_dsi_device *dsi)
 	struct visionox_rm69299 *ctx;
 	int ret;
 
-	ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
-	if (!ctx)
-		return -ENOMEM;
+	ctx = devm_drm_panel_alloc(dev, struct visionox_rm69299, panel,
+				   &visionox_rm69299_drm_funcs,
+				   DRM_MODE_CONNECTOR_DSI);
+	if (IS_ERR(ctx))
+		return PTR_ERR(ctx);
 
 	mipi_dsi_set_drvdata(dsi, ctx);
 
@@ -210,8 +212,6 @@ static int visionox_rm69299_probe(struct mipi_dsi_device *dsi)
 		return PTR_ERR(ctx->reset_gpio);
 	}
 
-	drm_panel_init(&ctx->panel, dev, &visionox_rm69299_drm_funcs,
-		       DRM_MODE_CONNECTOR_DSI);
 	drm_panel_add(&ctx->panel);
 
 	dsi->lanes = 4;

-- 
2.48.1

[PATCH v2 39/46] panel/visionox-rm692e5.c: Use refcounted allocation in place of devm_kzalloc()

[Anusha Srivatsa]

Move to using the new API devm_drm_panel_alloc() to allocate the
panel.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
---
v2: none
---
 drivers/gpu/drm/panel/panel-visionox-rm692e5.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-visionox-rm692e5.c b/drivers/gpu/drm/panel/panel-visionox-rm692e5.c
index 4db7fa8d74c4bb6fe733169d264e91c85eeaa32b..e53645d5941376e5c251601cff5bf485b0c817a7 100644
--- a/drivers/gpu/drm/panel/panel-visionox-rm692e5.c
+++ b/drivers/gpu/drm/panel/panel-visionox-rm692e5.c
@@ -360,9 +360,11 @@ static int visionox_rm692e5_probe(struct mipi_dsi_device *dsi)
 	struct visionox_rm692e5 *ctx;
 	int ret;
 
-	ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
-	if (!ctx)
-		return -ENOMEM;
+	ctx = devm_drm_panel_alloc(dev, struct visionox_rm692e5, panel,
+				   &visionox_rm692e5_panel_funcs,
+				   DRM_MODE_CONNECTOR_DSI);
+	if (IS_ERR(ctx))
+		return PTR_ERR(ctx);
 
 	ret = devm_regulator_bulk_get_const(&dsi->dev,
 					    ARRAY_SIZE(visionox_rm692e5_supplies),
@@ -383,8 +385,6 @@ static int visionox_rm692e5_probe(struct mipi_dsi_device *dsi)
 	dsi->format = MIPI_DSI_FMT_RGB888;
 	dsi->mode_flags = MIPI_DSI_CLOCK_NON_CONTINUOUS;
 
-	drm_panel_init(&ctx->panel, dev, &visionox_rm692e5_panel_funcs,
-		       DRM_MODE_CONNECTOR_DSI);
 	ctx->panel.prepare_prev_first = true;
 
 	ctx->panel.backlight = visionox_rm692e5_create_backlight(dsi);

-- 
2.48.1

[PATCH v2 40/46] panel/visionox-vtdr6130: Use refcounted allocation in place of devm_kzalloc()

[Anusha Srivatsa]

Move to using the new API devm_drm_panel_alloc() to allocate the
panel.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
---
v2: fix alignment.
---
 drivers/gpu/drm/panel/panel-visionox-vtdr6130.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-visionox-vtdr6130.c b/drivers/gpu/drm/panel/panel-visionox-vtdr6130.c
index 17b8defe79c10ffdbe643f1b3e07318c655eeb89..97a79411e1ecd4db0f33f892d7ff36778be51257 100644
--- a/drivers/gpu/drm/panel/panel-visionox-vtdr6130.c
+++ b/drivers/gpu/drm/panel/panel-visionox-vtdr6130.c
@@ -248,9 +248,11 @@ static int visionox_vtdr6130_probe(struct mipi_dsi_device *dsi)
 	struct visionox_vtdr6130 *ctx;
 	int ret;
 
-	ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
-	if (!ctx)
-		return -ENOMEM;
+	ctx = devm_drm_panel_alloc(dev, struct visionox_vtdr6130, panel,
+				   &visionox_vtdr6130_panel_funcs,
+				   DRM_MODE_CONNECTOR_DSI);
+	if (IS_ERR(ctx))
+		return PTR_ERR(ctx);
 
 	ret = devm_regulator_bulk_get_const(&dsi->dev,
 					    ARRAY_SIZE(visionox_vtdr6130_supplies),
@@ -273,9 +275,6 @@ static int visionox_vtdr6130_probe(struct mipi_dsi_device *dsi)
 			  MIPI_DSI_CLOCK_NON_CONTINUOUS;
 	ctx->panel.prepare_prev_first = true;
 
-	drm_panel_init(&ctx->panel, dev, &visionox_vtdr6130_panel_funcs,
-		       DRM_MODE_CONNECTOR_DSI);
-
 	ctx->panel.backlight = visionox_vtdr6130_create_backlight(dsi);
 	if (IS_ERR(ctx->panel.backlight))
 		return dev_err_probe(dev, PTR_ERR(ctx->panel.backlight),

-- 
2.48.1

[PATCH v2 41/46] panel/widechips-ws2401: Use refcounted allocation in place of devm_kzalloc()

[Anusha Srivatsa]

Move to using the new API devm_drm_panel_alloc() to allocate the
panel.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
---
v2: fix alignment.
---
 drivers/gpu/drm/panel/panel-widechips-ws2401.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-widechips-ws2401.c b/drivers/gpu/drm/panel/panel-widechips-ws2401.c
index 2591ff8f0d4e8b84b7283718bf05684e8d44d1f5..dd74610bd2eb870bbdb74bfce7a1b88ee5d1abc6 100644
--- a/drivers/gpu/drm/panel/panel-widechips-ws2401.c
+++ b/drivers/gpu/drm/panel/panel-widechips-ws2401.c
@@ -347,9 +347,11 @@ static int ws2401_probe(struct spi_device *spi)
 	struct ws2401 *ws;
 	int ret;
 
-	ws = devm_kzalloc(dev, sizeof(*ws), GFP_KERNEL);
-	if (!ws)
-		return -ENOMEM;
+	ws = devm_drm_panel_alloc(dev, struct ws2401, panel, &ws2401_drm_funcs,
+				  DRM_MODE_CONNECTOR_DPI);
+	if (IS_ERR(ws))
+		return PTR_ERR(ws);
+
 	ws->dev = dev;
 
 	/*
@@ -379,9 +381,6 @@ static int ws2401_probe(struct spi_device *spi)
 	ws2401_read_mtp_id(ws);
 	ws2401_power_off(ws);
 
-	drm_panel_init(&ws->panel, dev, &ws2401_drm_funcs,
-		       DRM_MODE_CONNECTOR_DPI);
-
 	ret = drm_panel_of_backlight(&ws->panel);
 	if (ret)
 		return dev_err_probe(dev, ret,

-- 
2.48.1

Re: [PATCH v2 41/46] panel/widechips-ws2401: Use refcounted allocation in place of devm_kzalloc()

[Linus Walleij]

On Fri, May 30, 2025 at 4:53 AM Anusha Srivatsa <asrivats@redhat.com> wrote:

> Move to using the new API devm_drm_panel_alloc() to allocate the
> panel.
>
> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
> Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>

Yours,
Linus Walleij

[PATCH v2 42/46] panel/xinpeng-xpp055c272: Use refcounted allocation in place of devm_kzalloc()

[Anusha Srivatsa]

Move to using the new API devm_drm_panel_alloc() to allocate the
panel.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
---
v2: none.
---
 drivers/gpu/drm/panel/panel-xinpeng-xpp055c272.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-xinpeng-xpp055c272.c b/drivers/gpu/drm/panel/panel-xinpeng-xpp055c272.c
index 2b91414c2829119f5317c5025b552e8bcfe39911..fc6516373b5d2e5d8858ef26f535ec1c87c5eef8 100644
--- a/drivers/gpu/drm/panel/panel-xinpeng-xpp055c272.c
+++ b/drivers/gpu/drm/panel/panel-xinpeng-xpp055c272.c
@@ -241,9 +241,10 @@ static int xpp055c272_probe(struct mipi_dsi_device *dsi)
 	struct xpp055c272 *ctx;
 	int ret;
 
-	ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
-	if (!ctx)
-		return -ENOMEM;
+	ctx = devm_drm_panel_alloc(dev, struct xpp055c272, panel,
+				   &xpp055c272_funcs, DRM_MODE_CONNECTOR_DSI);
+	if (IS_ERR(ctx))
+		return PTR_ERR(ctx);
 
 	ctx->reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_LOW);
 	if (IS_ERR(ctx->reset_gpio))
@@ -269,9 +270,6 @@ static int xpp055c272_probe(struct mipi_dsi_device *dsi)
 	dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
 			  MIPI_DSI_MODE_LPM | MIPI_DSI_MODE_NO_EOT_PACKET;
 
-	drm_panel_init(&ctx->panel, &dsi->dev, &xpp055c272_funcs,
-		       DRM_MODE_CONNECTOR_DSI);
-
 	ret = drm_panel_of_backlight(&ctx->panel);
 	if (ret)
 		return ret;

-- 
2.48.1

[PATCH v2 43/46] panel/s6e88a0-ams452ef01: Use refcounted allocation in place of devm_kzalloc()

[Anusha Srivatsa]

Move to using the new API devm_drm_panel_alloc() to allocate the
panel.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
---
v2: none.
---
 drivers/gpu/drm/panel/panel-samsung-s6e88a0-ams452ef01.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-samsung-s6e88a0-ams452ef01.c b/drivers/gpu/drm/panel/panel-samsung-s6e88a0-ams452ef01.c
index 57b1a899bbdc824b59f3a2d17b4203844e39a66c..ca5cad41ff1d95ba00759f38ad95750e0c307d34 100644
--- a/drivers/gpu/drm/panel/panel-samsung-s6e88a0-ams452ef01.c
+++ b/drivers/gpu/drm/panel/panel-samsung-s6e88a0-ams452ef01.c
@@ -165,9 +165,11 @@ static int s6e88a0_ams452ef01_probe(struct mipi_dsi_device *dsi)
 	struct s6e88a0_ams452ef01 *ctx;
 	int ret;
 
-	ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
-	if (!ctx)
-		return -ENOMEM;
+	ctx = devm_drm_panel_alloc(dev, struct s6e88a0_ams452ef01, panel,
+				   &s6e88a0_ams452ef01_panel_funcs,
+				   DRM_MODE_CONNECTOR_DSI);
+	if (IS_ERR(ctx))
+		return PTR_ERR(ctx);
 
 	ctx->supplies[0].supply = "vdd3";
 	ctx->supplies[1].supply = "vci";
@@ -192,9 +194,6 @@ static int s6e88a0_ams452ef01_probe(struct mipi_dsi_device *dsi)
 	dsi->format = MIPI_DSI_FMT_RGB888;
 	dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST;
 
-	drm_panel_init(&ctx->panel, dev, &s6e88a0_ams452ef01_panel_funcs,
-		       DRM_MODE_CONNECTOR_DSI);
-
 	drm_panel_add(&ctx->panel);
 
 	ret = mipi_dsi_attach(dsi);

-- 
2.48.1

[PATCH v2 44/46] panel/nec-nl8048hl11: Use refcounted allocation in place of devm_kzalloc()

[Anusha Srivatsa]

Move to using the new API devm_drm_panel_alloc() to allocate the
panel.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
---
v2: none.
---
 drivers/gpu/drm/panel/panel-nec-nl8048hl11.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-nec-nl8048hl11.c b/drivers/gpu/drm/panel/panel-nec-nl8048hl11.c
index 81c5c541a351cca1535e40ed722d5cb4c33d6708..d5c7210de4afe9101239173f506065f158cf673f 100644
--- a/drivers/gpu/drm/panel/panel-nec-nl8048hl11.c
+++ b/drivers/gpu/drm/panel/panel-nec-nl8048hl11.c
@@ -178,9 +178,10 @@ static int nl8048_probe(struct spi_device *spi)
 	struct nl8048_panel *lcd;
 	int ret;
 
-	lcd = devm_kzalloc(&spi->dev, sizeof(*lcd), GFP_KERNEL);
-	if (!lcd)
-		return -ENOMEM;
+	lcd = devm_drm_panel_alloc(&spi->dev, struct nl8048_panel, panel,
+				   &nl8048_funcs, DRM_MODE_CONNECTOR_DPI);
+	if (IS_ERR(lcd))
+		return PTR_ERR(lcd);
 
 	spi_set_drvdata(spi, lcd);
 	lcd->spi = spi;
@@ -204,9 +205,6 @@ static int nl8048_probe(struct spi_device *spi)
 	if (ret < 0)
 		return ret;
 
-	drm_panel_init(&lcd->panel, &lcd->spi->dev, &nl8048_funcs,
-		       DRM_MODE_CONNECTOR_DPI);
-
 	drm_panel_add(&lcd->panel);
 
 	return 0;

-- 
2.48.1

[PATCH v2 45/46] panel/panel-lvds: Use refcounted allocation in place of devm_kzalloc()

[Anusha Srivatsa]

Move to using the new API devm_drm_panel_alloc() to allocate the
panel.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
---
v2: none.
---
 drivers/gpu/drm/panel/panel-lvds.c | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-lvds.c b/drivers/gpu/drm/panel/panel-lvds.c
index ba6c015aabba9e03a37058e0fcf7cb39d1595d70..23fd535d8f479045a87b0f51bec17cd7c66b0f75 100644
--- a/drivers/gpu/drm/panel/panel-lvds.c
+++ b/drivers/gpu/drm/panel/panel-lvds.c
@@ -164,9 +164,11 @@ static int panel_lvds_probe(struct platform_device *pdev)
 	struct panel_lvds *lvds;
 	int ret;
 
-	lvds = devm_kzalloc(&pdev->dev, sizeof(*lvds), GFP_KERNEL);
-	if (!lvds)
-		return -ENOMEM;
+	lvds = devm_drm_panel_alloc(&pdev->dev, struct panel_lvds, panel,
+				    &panel_lvds_funcs,
+				    DRM_MODE_CONNECTOR_LVDS);
+	if (IS_ERR(lvds))
+		return PTR_ERR(lvds);
 
 	lvds->dev = &pdev->dev;
 
@@ -214,10 +216,6 @@ static int panel_lvds_probe(struct platform_device *pdev)
 	 * driver.
 	 */
 
-	/* Register the panel. */
-	drm_panel_init(&lvds->panel, lvds->dev, &panel_lvds_funcs,
-		       DRM_MODE_CONNECTOR_LVDS);
-
 	ret = drm_panel_of_backlight(&lvds->panel);
 	if (ret)
 		return ret;

-- 
2.48.1

[PATCH v2 46/46] panel/lg-lb035q02: Use refcounted allocation in place of devm_kzalloc()

[Anusha Srivatsa]

Move to using the new API devm_drm_panel_alloc() to allocate the
panel.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
---
v2: none.
---
 drivers/gpu/drm/panel/panel-lg-lb035q02.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-lg-lb035q02.c b/drivers/gpu/drm/panel/panel-lg-lb035q02.c
index 9d0d4faa3f58aa4950e48d082352e0013880ee30..b2be6727bf73d34c8a9fdc9ad2f52b11d22d3b28 100644
--- a/drivers/gpu/drm/panel/panel-lg-lb035q02.c
+++ b/drivers/gpu/drm/panel/panel-lg-lb035q02.c
@@ -178,9 +178,10 @@ static int lb035q02_probe(struct spi_device *spi)
 	struct lb035q02_device *lcd;
 	int ret;
 
-	lcd = devm_kzalloc(&spi->dev, sizeof(*lcd), GFP_KERNEL);
-	if (!lcd)
-		return -ENOMEM;
+	lcd = devm_drm_panel_alloc(&spi->dev, struct lb035q02_device, panel,
+				   &lb035q02_funcs, DRM_MODE_CONNECTOR_DPI);
+	if (IS_ERR(lcd))
+		return PTR_ERR(lcd);
 
 	spi_set_drvdata(spi, lcd);
 	lcd->spi = spi;
@@ -195,9 +196,6 @@ static int lb035q02_probe(struct spi_device *spi)
 	if (ret < 0)
 		return ret;
 
-	drm_panel_init(&lcd->panel, &lcd->spi->dev, &lb035q02_funcs,
-		       DRM_MODE_CONNECTOR_DPI);
-
 	drm_panel_add(&lcd->panel);
 
 	return 0;

-- 
2.48.1

Re: [PATCH v2 00/46] drm/panel: Use refcounted allocation in place of devm_kzalloc() - Part3

[Maxime Ripard]

On Thu, 29 May 2025 21:46:02 -0500, Anusha Srivatsa wrote:
> Final set of drivers to use the new API - devm_drm_panel_alloc().
> There are a lot of occurences of the panel allocation across the
> subsystem. Much thanks to Maxime for the semanic patch which actually
> gives a list of panels allocated unsafely.
> 
> virtual report
> 
> [...]

Applied to misc/kernel.git (drm-misc-next).

Thanks!
Maxime