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Add RPI kernel 6.6 support

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Ycarus (Yannick Chabanois) 2024-04-05 20:55:33 +02:00
parent 98cad48e0e
commit 12de1d2995
1001 changed files with 321080 additions and 0 deletions
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40
6.6/target/linux/bcm27xx/patches-6.6/0300-drm-panel-raspberrypi-touchscreen-Handle-I2C-errors.patch Normal file
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@ -0,0 +1,40 @@
From 7e92f2bdf04811093aa212caa0ee8b45bb5a7be6 Mon Sep 17 00:00:00 2001
From: Dave Stevenson <dave.stevenson@raspberrypi.com>
Date: Wed, 8 Sep 2021 14:21:38 +0100
Subject: [PATCH 0300/1002] drm/panel/raspberrypi-touchscreen: Handle I2C
errors.
rpi_touchscreen_i2c_read returns any errors from i2c_transfer,
or the 8 bit received value.
Check for error values before trying to process the data as
valid.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
---
drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c b/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c
index dae2ec2acd1f..12f6961c9268 100644
--- a/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c
+++ b/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c
@@ -295,13 +295,14 @@ static int rpi_touchscreen_noop(struct drm_panel *panel)
static int rpi_touchscreen_prepare(struct drm_panel *panel)
{
struct rpi_touchscreen *ts = panel_to_ts(panel);
- int i;
+ int i, data;
rpi_touchscreen_i2c_write(ts, REG_POWERON, 1);
usleep_range(20000, 25000);
/* Wait for nPWRDWN to go low to indicate poweron is done. */
for (i = 0; i < 100; i++) {
- if (rpi_touchscreen_i2c_read(ts, REG_PORTB) & 1)
+ data = rpi_touchscreen_i2c_read(ts, REG_PORTB);
+ if (data >= 0 && (data & 1))
break;
}
--
2.44.0