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openwrt/target/linux/bcm27xx/patches-6.6/950-1091-regulator-rpi_panel_v2-Add-remove-and-shutdown-hooks.patch
Álvaro Fernández Rojas 8c405cdccc bcm27xx: add 6.6 kernel patches
The patches were generated from the RPi repo with the following command:
git format-patch v6.6.34..rpi-6.1.y

Some patches needed rebasing and, as usual, the applied and reverted, wireless
drivers, Github workflows, READMEs and defconfigs patches were removed.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2024-06-18 18:52:49 +02:00

56 lines
1.7 KiB
Diff

From fd373fba7abfec9f8fed6e5e439d4df61811bd32 Mon Sep 17 00:00:00 2001
From: Dave Stevenson <dave.stevenson@raspberrypi.com>
Date: Thu, 16 May 2024 18:26:36 +0100
Subject: [PATCH 1091/1135] regulator: rpi_panel_v2: Add remove and shutdown
hooks
Add shutdown and remove hooks so that the panel gets powered
off with the system.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
---
drivers/regulator/rpi-panel-v2-regulator.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
--- a/drivers/regulator/rpi-panel-v2-regulator.c
+++ b/drivers/regulator/rpi-panel-v2-regulator.c
@@ -104,6 +104,7 @@ static int rpi_panel_v2_i2c_probe(struct
return -ENOMEM;
mutex_init(&state->lock);
+ i2c_set_clientdata(i2c, state);
regmap = devm_regmap_init_i2c(i2c, &rpi_panel_regmap_config);
if (IS_ERR(regmap)) {
@@ -168,6 +169,21 @@ error:
return ret;
}
+static void rpi_panel_v2_i2c_remove(struct i2c_client *client)
+{
+ struct rpi_panel_v2_lcd *state = i2c_get_clientdata(client);
+
+ mutex_destroy(&state->lock);
+}
+
+static void rpi_panel_v2_i2c_shutdown(struct i2c_client *client)
+{
+ struct rpi_panel_v2_lcd *state = i2c_get_clientdata(client);
+
+ regmap_write(state->regmap, REG_PWM, 0);
+ regmap_write(state->regmap, REG_POWERON, 0);
+}
+
static const struct of_device_id rpi_panel_v2_dt_ids[] = {
{ .compatible = "raspberrypi,v2-touchscreen-panel-regulator" },
{},
@@ -180,6 +196,8 @@ static struct i2c_driver rpi_panel_v2_re
.of_match_table = of_match_ptr(rpi_panel_v2_dt_ids),
},
.probe = rpi_panel_v2_i2c_probe,
+ .remove = rpi_panel_v2_i2c_remove,
+ .shutdown = rpi_panel_v2_i2c_shutdown,
};
module_i2c_driver(rpi_panel_v2_regulator_driver);