linux/drivers/gpu/drm/tinydrm/Kconfig, branch master

drm/tinydrm: Rename folder to tiny

2019-07-31T13:16:10Z

The drm in tinydrm is superfluous so rename to tiny. Suggested-by: Daniel Vetter Signed-off-by: Noralf Trønnes Acked-by: Daniel Vetter Acked-by: Sam Ravnborg Reviewed-by: Hans de Goede Link: https://patchwork.freedesktop.org/patch/msgid/20190725105132.22545-3-noralf@tronnes.org

drm/tinydrm/Kconfig: Remove menuconfig DRM_TINYDRM

2019-07-31T13:15:02Z

This makes the tiny drivers visible by default without having to enable a knob. Signed-off-by: Noralf Trønnes Acked-by: Daniel Vetter Acked-by: Sam Ravnborg Reviewed-by: Hans de Goede to it once Link: https://patchwork.freedesktop.org/patch/msgid/20190725105132.22545-2-noralf@tronnes.org

drm/tinydrm: Move mipi-dbi

2019-07-25T08:45:07Z

This moves mipi-dbi to be a core helper with the name drm_mipi_dbi. Fixup include's in drivers. Move the docs entry and delete tinydrm.rst. Delete the last tinydrm todo entry. v2: Make DRM_MIPI_DBI tristate to enable it being built as a module. Cc: Eric Anholt Cc: David Lechner Reviewed-by: Sam Ravnborg Signed-off-by: Noralf Trønnes Acked-by: David Lechner Acked-by: Eric Anholt Link: https://patchwork.freedesktop.org/patch/msgid/20190722104312.16184-9-noralf@tronnes.org

drm/tinydrm/mipi-dbi: Select DRM_KMS_HELPER

2019-07-25T08:44:20Z

mipi-dbi uses several KMS helper functions but that build dependency is not expressed. Select DRM_KMS_HELPER to fix that. Reported-by: kbuild test robot Signed-off-by: Noralf Trønnes Reviewed-by: David Lechner Link: https://patchwork.freedesktop.org/patch/msgid/20190722104312.16184-8-noralf@tronnes.org

drm/tinydrm/Kconfig: drivers: Select BACKLIGHT_CLASS_DEVICE

2019-07-25T08:44:03Z

The mipi_dbi helper is missing a dependency on DRM_KMS_HELPER and putting that in revealed this problem: drivers/video/fbdev/Kconfig:12:error: recursive dependency detected! drivers/video/fbdev/Kconfig:12: symbol FB is selected by DRM_KMS_FB_HELPER drivers/gpu/drm/Kconfig:75: symbol DRM_KMS_FB_HELPER depends on DRM_KMS_HELPER drivers/gpu/drm/Kconfig:69: symbol DRM_KMS_HELPER is selected by TINYDRM_MIPI_DBI drivers/gpu/drm/tinydrm/Kconfig:11: symbol TINYDRM_MIPI_DBI is selected by TINYDRM_HX8357D drivers/gpu/drm/tinydrm/Kconfig:15: symbol TINYDRM_HX8357D depends on BACKLIGHT_CLASS_DEVICE drivers/video/backlight/Kconfig:144: symbol BACKLIGHT_CLASS_DEVICE is selected by FB_BACKLIGHT drivers/video/fbdev/Kconfig:187: symbol FB_BACKLIGHT depends on FB A symbol that selects DRM_KMS_HELPER can not depend on BACKLIGHT_CLASS_DEVICE. The reason for this is that DRM_KMS_FB_HELPER selects FB instead of depending on it. The tinydrm drivers have somehow gotten away with depending on BACKLIGHT_CLASS_DEVICE because DRM_TINYDRM selects DRM_KMS_HELPER and the drivers depend on that symbol. An audit shows that all DRM drivers that select DRM_KMS_HELPER and use BACKLIGHT_CLASS_DEVICE, selects it: DRM_TILCDC, DRM_GMA500, DRM_SHMOBILE, DRM_NOUVEAU, DRM_FSL_DCU, DRM_I915, DRM_RADEON, DRM_AMDGPU, DRM_PARADE_PS8622 Documentation/kbuild/kconfig-language.txt has a note regarding select: 1. 'select should be used with care since it doesn't visit dependencies.' This is not a problem since BACKLIGHT_CLASS_DEVICE doesn't have any dependencies. 2. 'In general use select only for non-visible symbols' BACKLIGHT_CLASS_DEVICE is user visible. The real solution to this would be to have DRM_KMS_FB_HELPER depend on the user visible symbol FB. That is a can of worms I'm not willing to tackle. I fear that such a change will result in me handling difficult fallouts for the next weeks. So I'm following DRM suite here. Signed-off-by: Noralf Trønnes Reviewed-by: David Lechner Link: https://patchwork.freedesktop.org/patch/msgid/20190722104312.16184-7-noralf@tronnes.org

treewide: Add SPDX license identifier - Makefile/Kconfig

2019-05-21T08:50:46Z

Add SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any form These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman

drm: Add an hx8367d tinydrm driver.

2018-10-30T23:23:38Z

I want to sort out support for tinydrm in vc4, so I needed to get a tinydrm-appropriate panel working and this is what I had on hand. This is derived from a combination of ili9341.c from tinydrm and fb_hx8357d.c from staging's fbtft. v2: Write my own register defs from the spec to not need the header from fbtft. Fix spi device string to enable module autoloading. (Suggestions by Noralf) Signed-off-by: Eric Anholt Link: https://patchwork.freedesktop.org/patch/msgid/20181024184313.2967-3-eric@anholt.net Reviewed-by: Noralf Trønnes (v1)

drm/tinydrm: add backlight dependency for ili9341

2018-07-12T17:10:07Z

This tinydrm driver fails to link without the backlight support: drivers/gpu/drm/tinydrm/ili9341.o: In function `ili9341_probe': ili9341.c:(.text+0x578): undefined reference to `devm_of_find_backlight' Fixes: 3fa0e8f6f960 ("drm/tinydrm: new driver for ILI9341 display panels") Signed-off-by: Arnd Bergmann Acked-by: Noralf Trønnes Signed-off-by: David Lechner Link: https://patchwork.freedesktop.org/patch/msgid/20180709152106.990066-1-arnd@arndb.de

drm/tinydrm: new driver for ILI9341 display panels

2018-06-27T18:03:45Z

This adds a new driver for display panels that use the Ilitek ILI9341 controller. It currently supports a single display panel, namely the YX240QV29-T (e.g. Adafruit 2.4" TFT). The init sequence is from the Adafruit Python library for the ILI9341 controller. https://github.com/adafruit/Adafruit_Python_ILI9341 Signed-off-by: David Lechner Reviewed-by: Andy Shevchenko Reviewed-by: Noralf Trønnes Link: https://patchwork.freedesktop.org/patch/msgid/20180525193623.15533-5-david@lechnology.com

tinydrm: add backlight dependency

2018-02-28T20:08:56Z

Calling devm_of_find_backlight directly means we get a link failure without CONFIG_BACKLIGHT_CLASS_DEVICE: drivers/gpu/drm/tinydrm/mi0283qt.o: In function `mi0283qt_probe': mi0283qt.c:(.text+0x684): undefined reference to `devm_of_find_backlight' This adds an explicit Kconfig dependency for it. While I did not observe that failure for st7735r, I assume the same change is needed there for the same reason. Fixes: d1a2e7004b5e ("drm/tinydrm: Replace tinydrm_of_find_backlight with of_find_backlight") Signed-off-by: Arnd Bergmann Signed-off-by: Sean Paul Link: https://patchwork.freedesktop.org/patch/msgid/20180228134111.2042877-1-arnd@arndb.de