Re: [PATCH v9 13/55] Input: atmel_mxt_ts - add regulator control support
From: Dmitry Osipenko <digetx@gmail.com>
Date: 2020-03-25 19:05:44
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25.03.2020 16:32, Jiada Wang пишет:
From: Nick Dyer <redacted> Allow the driver to optionally manage enabling/disable power to the touch controller itself. If the regulators are not present then use the deep sleep power mode instead. For a correct power on sequence, it is required that we have control over the RESET line.
...
+ data->reg_vdd = devm_regulator_get(dev, "vdd");
+ if (IS_ERR(data->reg_vdd)) {
+ error = PTR_ERR(data->reg_vdd);
+ dev_err(dev, "Error %d getting vdd regulator\n", error);
+ goto fail;
+ }
+
+ data->reg_avdd = devm_regulator_get(dev, "avdd");
+ if (IS_ERR(data->reg_avdd)) {
+ error = PTR_ERR(data->reg_avdd);
+ dev_err(dev, "Error %d getting avdd regulator\n", error);
+ goto fail_release;
+ }Hello Jiada, The new regulator properties should be documented in the device-tree binding.