diff options
| author | Dave Stevenson <dave.stevenson@raspberrypi.com> | 2025-06-16 17:40:07 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2025-06-17 12:50:30 +0100 |
| commit | 3e1c01d06e1f52f78fe00ef26a9cf80dbb0a3115 (patch) | |
| tree | 5df236764b33efaea5cc0bef84ab076d305c2e60 /drivers | |
| parent | a4eb71ff98c4792f441f108910bd829da7a04092 (diff) | |
regulator: rpi-panel-v2: Add shutdown hook
Add shutdown hook so that the panel gets powered off with the system.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Link: https://patch.msgid.link/20250616154018.430004-1-marek.vasut+renesas@mailbox.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/regulator/rpi-panel-v2-regulator.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/regulator/rpi-panel-v2-regulator.c b/drivers/regulator/rpi-panel-v2-regulator.c index c506fd699d57..30b78aa75ee3 100644 --- a/drivers/regulator/rpi-panel-v2-regulator.c +++ b/drivers/regulator/rpi-panel-v2-regulator.c @@ -89,9 +89,19 @@ static int rpi_panel_v2_i2c_probe(struct i2c_client *i2c) if (ret) return dev_err_probe(&i2c->dev, ret, "Failed to create gpiochip\n"); + i2c_set_clientdata(i2c, regmap); + return devm_pwmchip_add(&i2c->dev, pc); } +static void rpi_panel_v2_i2c_shutdown(struct i2c_client *client) +{ + struct regmap *regmap = i2c_get_clientdata(client); + + regmap_write(regmap, REG_PWM, 0); + regmap_write(regmap, REG_POWERON, 0); +} + static const struct of_device_id rpi_panel_v2_dt_ids[] = { { .compatible = "raspberrypi,touchscreen-panel-regulator-v2" }, { }, @@ -105,6 +115,7 @@ static struct i2c_driver rpi_panel_v2_regulator_driver = { .of_match_table = rpi_panel_v2_dt_ids, }, .probe = rpi_panel_v2_i2c_probe, + .shutdown = rpi_panel_v2_i2c_shutdown, }; module_i2c_driver(rpi_panel_v2_regulator_driver); |