openwrt/target/linux/bcm27xx/patches-6.1/950-0836-drm-ili9486-Resolve-clash-in-spi_device_id-names.patch
Marty Jones 2e715fb4fc bcm27xx: update 6.1 patches to latest version
Add support for BCM2712 (Raspberry Pi 5).
3bb5880ab3
Patches were generated from the diff between linux kernel branch linux-6.1.y
and rpi-6.1.y from raspberry pi kernel source:
- git format-patch linux-6.1.y...rpi-6.1.y

Build system: x86_64
Build-tested: bcm2708, bcm2709, bcm2710, bcm2711
Run-tested: bcm2710/RPi3B, bcm2711/RPi4B

Signed-off-by: Marty Jones <mj8263788@gmail.com>
[Remove applied and reverted patches, squash patches and config commits]
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2024-01-25 17:46:45 +01:00

37 lines
1.3 KiB
Diff

From f59fe2d1bd056af117eb512bb0e9210a943c6d47 Mon Sep 17 00:00:00 2001
From: Dave Stevenson <dave.stevenson@raspberrypi.com>
Date: Fri, 1 Sep 2023 12:17:38 +0100
Subject: [PATCH] drm/ili9486: Resolve clash in spi_device_id names
For "Really Good Reasons" [1] the SPI core requires a match
between compatible device strings and the name in spi_device_id.
The ili9486 driver uses compatible strings "waveshare,rpi-lcd-35"
and "ozzmaker,piscreen", but "rpi-lcd-35" and "piscreen" are missing,
so add them.
Compatible string "ilitek,ili9486" is already used by
staging/fbtft/fb_ili9486, therefore leaving it present in ili9486 as an
spi_device_id causes the incorrect module to be loaded, therefore remove
this id.
[1] https://elixir.bootlin.com/linux/latest/source/drivers/spi/spi.c#L487
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
---
drivers/gpu/drm/tiny/ili9486.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/gpu/drm/tiny/ili9486.c
+++ b/drivers/gpu/drm/tiny/ili9486.c
@@ -187,7 +187,8 @@ static const struct of_device_id ili9486
MODULE_DEVICE_TABLE(of, ili9486_of_match);
static const struct spi_device_id ili9486_id[] = {
- { "ili9486", 0 },
+ { "rpi-lcd-35", 0 },
+ { "piscreen", 0 },
{ }
};
MODULE_DEVICE_TABLE(spi, ili9486_id);