From: Markuss Broks <markuss.broks@gmail.com>
To: linux-kernel@vger.kernel.org
Cc: ~postmarketos/upstreaming@lists.sr.ht,
phone-devel@vger.kernel.org,
Markuss Broks <markuss.broks@gmail.com>,
Konrad Dybcio <konrad.dybcio@somainline.org>,
Marijn Suijten <marijn.suijten@somainline.org>,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@somainline.org>,
Song Qiang <songqiang1304521@gmail.com>,
Jonathan Cameron <jic23@kernel.org>,
Lars-Peter Clausen <lars@metafoo.de>,
Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Andy Gross <agross@kernel.org>,
Bjorn Andersson <bjorn.andersson@linaro.org>,
Liam Girdwood <lgirdwood@gmail.com>,
Mark Brown <broonie@kernel.org>,
linux-iio@vger.kernel.org, devicetree@vger.kernel.org,
linux-arm-msm@vger.kernel.org
Subject: [PATCH v2 4/5] proximity: vl53l0x: Handle the reset GPIO
Date: Thu, 12 May 2022 00:47:16 +0300 [thread overview]
Message-ID: <20220511214718.50879-5-markuss.broks@gmail.com> (raw)
In-Reply-To: <20220511214718.50879-1-markuss.broks@gmail.com>
Handle the GPIO connected to the XSHUT/RST_N pin of VL53L0X.
Signed-off-by: Markuss Broks <markuss.broks@gmail.com>
---
drivers/iio/proximity/vl53l0x-i2c.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/drivers/iio/proximity/vl53l0x-i2c.c b/drivers/iio/proximity/vl53l0x-i2c.c
index e65c4fcd32d6..7aa9c1e95006 100644
--- a/drivers/iio/proximity/vl53l0x-i2c.c
+++ b/drivers/iio/proximity/vl53l0x-i2c.c
@@ -15,6 +15,7 @@
*/
#include <linux/delay.h>
+#include <linux/gpio/consumer.h>
#include <linux/i2c.h>
#include <linux/interrupt.h>
#include <linux/module.h>
@@ -43,6 +44,7 @@ struct vl53l0x_data {
struct i2c_client *client;
struct completion completion;
struct regulator *vdd_supply;
+ struct gpio_desc *reset_gpio;
};
static irqreturn_t vl53l0x_handle_irq(int irq, void *priv)
@@ -196,6 +198,8 @@ static void vl53l0x_power_off(void *_data)
{
struct vl53l0x_data *data = _data;
+ gpiod_set_value_cansleep(data->reset_gpio, 1);
+
regulator_disable(data->vdd_supply);
}
@@ -207,6 +211,8 @@ static int vl53l0x_power_on(struct vl53l0x_data *data)
if (ret)
return ret;
+ gpiod_set_value_cansleep(data->reset_gpio, 0);
+
usleep_range(3200, 5000);
return 0;
@@ -236,6 +242,11 @@ static int vl53l0x_probe(struct i2c_client *client)
return dev_err_probe(&client->dev, PTR_ERR(data->vdd_supply),
"Unable to get VDD regulator\n");
+ data->reset_gpio = devm_gpiod_get_optional(&client->dev, "reset", GPIOD_OUT_HIGH);
+ if (IS_ERR(data->reset_gpio))
+ return dev_err_probe(&client->dev, PTR_ERR(data->reset_gpio),
+ "Cannot get reset GPIO\n");
+
error = devm_add_action_or_reset(&client->dev, vl53l0x_power_off, data);
if (error)
return dev_err_probe(&client->dev, error,
--
2.36.1
next prev parent reply other threads:[~2022-05-11 21:48 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-11 21:47 [PATCH v2 0/5] Add support for ToF sensor on Yoshino platform Markuss Broks
2022-05-11 21:47 ` [PATCH v2 1/5] dt-bindings: proximity: vl53l0x: Document optional supply and GPIO properties Markuss Broks
2022-05-13 8:16 ` Krzysztof Kozlowski
2022-05-11 21:47 ` [PATCH v2 2/5] proximity: vl53l0x: Prefer already initialized interrupt flags Markuss Broks
2022-05-12 10:32 ` kernel test robot
2022-05-11 21:47 ` [PATCH v2 3/5] proximity: vl53l0x: Handle the VDD regulator Markuss Broks
2022-05-11 21:47 ` Markuss Broks [this message]
2022-05-11 21:47 ` [PATCH v2 5/5] arm64: dts: qcom: msm8998-xperia: Introduce ToF sensor support Markuss Broks
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