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drm/st7571-i2c: add support for Sitronix ST7571 LCD controller

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Sitronix ST7571 is a 4bit gray scale dot matrix LCD controller.
The controller has a SPI, I2C and 8bit parallel interface, this
driver is for the I2C interface only.

Reviewed-by: Thomas Zimmermann <tzimmrmann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Link: https://lore.kernel.org/r/20250423-st7571-v6-2-e9519e3c4ec4@gmail.com
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
This commit is contained in:
Marcus Folkesson 2025-04-23 21:03:21 +02:00 • committed by Javier Martinez Canillas
parent cb2c4d734b
commit 4b35f0f41e
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GPG key ID: C751E590D63F3D69
3 changed files with 1014 additions and 0 deletions
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11
drivers/gpu/drm/tiny/Kconfig
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@ -212,6 +212,17 @@ config TINYDRM_ST7586
If M is selected the module will be called st7586.
config DRM_ST7571_I2C
tristate "DRM support for Sitronix ST7571 display panels (I2C)"
depends on DRM && I2C && MMU
select DRM_GEM_SHMEM_HELPER
select DRM_KMS_HELPER
select REGMAP_I2C
help
DRM driver for Sitronix ST7571 panels controlled over I2C.
if M is selected the module will be called st7571-i2c.
config TINYDRM_ST7735R
tristate "DRM support for Sitronix ST7715R/ST7735R display panels"
depends on DRM && SPI

1
drivers/gpu/drm/tiny/Makefile
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@ -6,6 +6,7 @@ obj-$(CONFIG_DRM_BOCHS) += bochs.o
obj-$(CONFIG_DRM_CIRRUS_QEMU) += cirrus-qemu.o
obj-$(CONFIG_DRM_GM12U320) += gm12u320.o
obj-$(CONFIG_DRM_PANEL_MIPI_DBI) += panel-mipi-dbi.o
obj-$(CONFIG_DRM_ST7571_I2C) += st7571-i2c.o
obj-$(CONFIG_TINYDRM_HX8357D) += hx8357d.o
obj-$(CONFIG_TINYDRM_ILI9163) += ili9163.o
obj-$(CONFIG_TINYDRM_ILI9225) += ili9225.o

1002
drivers/gpu/drm/tiny/st7571-i2c.c Normal file
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