Messages in this thread Patch in this message | | | From | Mike Looijmans <> | Subject | [PATCH v2 2/2] Input: exc3000 - Support power supply regulators | Date | Fri, 7 Jul 2023 15:10:42 +0200 |
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Add power supply regulator support to the exc3000 devices.
Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl>
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Changes in v2: Add missing "return" statement Use devm_regulator_get_enable without _optional
drivers/input/touchscreen/exc3000.c | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/drivers/input/touchscreen/exc3000.c b/drivers/input/touchscreen/exc3000.c index 4af4c1e5d0da..e3f6d21b3c1b 100644 --- a/drivers/input/touchscreen/exc3000.c +++ b/drivers/input/touchscreen/exc3000.c @@ -18,6 +18,7 @@ #include <linux/interrupt.h> #include <linux/module.h> #include <linux/of.h> +#include <linux/regulator/consumer.h> #include <linux/sizes.h> #include <linux/timer.h> #include <asm/unaligned.h> @@ -360,6 +361,12 @@ static int exc3000_probe(struct i2c_client *client) if (IS_ERR(data->reset)) return PTR_ERR(data->reset); + /* For proper reset sequence, enable power while reset asserted */ + error = devm_regulator_get_enable(&client->dev, "vdd"); + if (error && error != -ENODEV) + return dev_err_probe(&client->dev, error, + "failed to request vdd regulator\n"); + if (data->reset) { msleep(EXC3000_RESET_MS); gpiod_set_value_cansleep(data->reset, 0); -- 2.17.1
Met vriendelijke groet / kind regards,
Mike Looijmans System Expert
TOPIC Embedded Products B.V. Materiaalweg 4, 5681 RJ Best The Netherlands
T: +31 (0) 499 33 69 69 E: mike.looijmans@topicproducts.com W: www.topic.nl
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