linux-toradex.git/drivers/gpu/drm/shmobile, branch master

drm: Place Renesas drivers in a separate dir

2023-05-29T13:41:03+00:00

Create vendor specific renesas directory and move renesas drivers
to that directory.

Signed-off-by: Biju Das 
Acked-by: Kieran Bingham 
Reviewed-by: Laurent Pinchart 
Signed-off-by: Laurent Pinchart

drm: shmobile: Make DRM_SHMOBILE visible on Renesas SoC platforms

2023-05-24T12:00:49+00:00

The LCD Controller supported by the drm-shmob driver is present
on SuperH SH-Mobile SoCs, and on Renesas ARM SH/R-Mobile SoCs.
Unfortunately its config option is not visible on either, so the user
can never enable the support.

Fix this by dropping the dependency on ARM (for SuperH), and by widening
the dependency range to ARCH_RENESAS (for ARM).

Signed-off-by: Geert Uytterhoeven 
Reviewed-by: Thomas Zimmermann 
Reviewed-by: Laurent Pinchart 
Signed-off-by: Thomas Zimmermann 
Link: https://patchwork.freedesktop.org/patch/msgid/40ac67e0887d833ab4a3f1ec24828dedf0d8e108.1684854992.git.geert+renesas@glider.be

drm: shmobile: Add missing call to drm_fbdev_generic_setup()

2023-05-24T12:00:48+00:00

Set up generic fbdev emulation, to enable support for the Linux console.

Use 16 as the preferred depth, as that is a good compromise between
colorfulness and resource utilization, and the default of the fbdev
driver.

Suggested-by: Laurent Pinchart 
Signed-off-by: Geert Uytterhoeven 
Reviewed-by: Thomas Zimmermann 
Reviewed-by: Laurent Pinchart 
Signed-off-by: Thomas Zimmermann 
Link: https://patchwork.freedesktop.org/patch/msgid/c836938112fda21762bc9eb2741ccd0cbf1197ef.1684854992.git.geert+renesas@glider.be

drm: shmobile: Switch to drm_crtc_init_with_planes()

2023-05-24T12:00:47+00:00

The SH-Mobile DRM driver uses the legacy drm_crtc_init(), which
advertizes only the formats in safe_modeset_formats[] (XR24 and AR24) as
being supported.

Switch to drm_crtc_init_with_planes(), and advertize all supported
(A)RGB modes, so we can use RGB565 as the default mode for the console.

Signed-off-by: Geert Uytterhoeven 
Reviewed-by: Thomas Zimmermann 
Reviewed-by: Laurent Pinchart 
Signed-off-by: Thomas Zimmermann 
Link: https://patchwork.freedesktop.org/patch/msgid/2098de3d33bc479a8569da7dcbafdb685ff0a13a.1684854992.git.geert+renesas@glider.be

drm: shmobile: Add support for DRM_FORMAT_XRGB8888

2023-05-24T12:00:46+00:00

DRM_FORMAT_XRGB8888 aka XR24 is the modus francus of DRM, and should be
supported by all drivers.

The handling for DRM_FORMAT_XRGB8888 is similar to DRM_FORMAT_ARGB8888,
just ignore the alpha channel.

Signed-off-by: Geert Uytterhoeven 
Reviewed-by: Thomas Zimmermann 
Reviewed-by: Laurent Pinchart 
Signed-off-by: Thomas Zimmermann 
Link: https://patchwork.freedesktop.org/patch/msgid/888cde6d1f70f1610931c4a89801060bb6765ff2.1684854992.git.geert+renesas@glider.be

drm: shmobile: Use %p4cc to print fourcc codes

2023-05-24T12:00:45+00:00

Replace the printing of hexadecimal fourcc format codes by
pretty-printed format names, using the "%p4cc" format specifier.

Signed-off-by: Geert Uytterhoeven 
Reviewed-by: Thomas Zimmermann 
Reviewed-by: Laurent Pinchart 
Signed-off-by: Thomas Zimmermann 
Link: https://patchwork.freedesktop.org/patch/msgid/1a63e5afc8a85f7ae10f7f4395c2d065ba1aeb59.1684854992.git.geert+renesas@glider.be

drm/shmobile: Remove unnecessary include statements for drm_crtc_helper.h

2023-01-18T08:25:32+00:00

Several source files include drm_crtc_helper.h without needing it or
only to get its transitive include statements; leading to unnecessary
compile-time dependencies.

Directly include required headers and drop drm_crtc_helper.h where
possible.

Signed-off-by: Thomas Zimmermann 
Reviewed-by: Sam Ravnborg 
Acked-by: Jani Nikula 
Acked-by: Alex Deucher 
Link: https://patchwork.freedesktop.org/patch/msgid/20230116131235.18917-17-tzimmermann@suse.de

drm: shmobile: Remove #ifdef guards for PM related functions

2022-12-12T13:07:02+00:00

Use the DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr() macros to handle
the .suspend/.resume callbacks.

These macros allow the suspend and resume functions to be automatically
dropped by the compiler when CONFIG_SUSPEND is disabled, without having
to use #ifdef guards.

This has the advantage of always compiling these functions in,
independently of any Kconfig option. Thanks to that, bugs and other
regressions are subsequently easier to catch.

Signed-off-by: Paul Cercueil 
Reviewed-by: Kieran Bingham 
Reviewed-by: Laurent Pinchart 
Link: https://patchwork.freedesktop.org/patch/msgid/20221129191942.138244-6-paul@crapouillou.net

drm/plane: Remove drm_plane_init()

2022-09-20T07:37:12+00:00

Open-code drm_plane_init() and remove the function from DRM. The
implementation of drm_plane_init() is a simple wrapper around a call
to drm_universal_plane_init(), so drivers can just use that instead.

Signed-off-by: Thomas Zimmermann 
Reviewed-by: Javier Martinez Canillas 
Reviewed-by: Laurent Pinchart 
Reviewed-by: Lyude Paul  # nouveau
Acked-by: Jyri Sarha 
Link: https://patchwork.freedesktop.org/patch/msgid/20220909105947.6487-2-tzimmermann@suse.de

drm/gem: rename struct drm_gem_dma_object.{paddr => dma_addr}

2022-08-03T16:32:27+00:00

The field paddr of struct drm_gem_dma_object holds a DMA address, which
might actually be a physical address. However, depending on the platform,
it can also be a bus address or a virtual address managed by an IOMMU.

Hence, rename the field to dma_addr, which is more applicable.

In order to do this renaming the following coccinelle script was used:

```
	@@
	struct drm_gem_dma_object *gem;
	@@

	- gem->paddr
	+ gem->dma_addr

	@@
	struct drm_gem_dma_object gem;
	@@

	- gem.paddr
	+ gem.dma_addr

	@exists@
	typedef dma_addr_t;
	symbol paddr;
	@@

	dma_addr_t paddr;
	<...
	- paddr
	+ dma_addr
	...>

	@@
	symbol paddr;
	@@
	dma_addr_t
	- paddr
	+ dma_addr
	;

```

This patch is compile-time tested with:

```
	make ARCH={x86_64,arm,arm64} allyesconfig
	make ARCH={x86_64,arm,arm64} drivers/gpu/drm`
```

Acked-by: Sam Ravnborg 
Suggested-by: Laurent Pinchart 
Reviewed-by: Laurent Pinchart 
Signed-off-by: Danilo Krummrich 
Signed-off-by: Sam Ravnborg 
Link: https://patchwork.freedesktop.org/patch/msgid/20220802000405.949236-5-dakr@redhat.com