* [PATCH 03/14] power: supply: sc27xx: Introduce local variable 'struct device *dev'
@ 2019-07-08 12:32 Fuqian Huang
2019-07-09 5:44 ` Baolin Wang
2019-09-02 19:10 ` Sebastian Reichel
0 siblings, 2 replies; 3+ messages in thread
From: Fuqian Huang @ 2019-07-08 12:32 UTC (permalink / raw)
Cc: Sebastian Reichel, linux-pm, linux-kernel, Fuqian Huang
Introduce local variable 'struct device *dev' and use it instead of
dereferencing it repeatly.
Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com>
---
drivers/power/supply/sc27xx_fuel_gauge.c | 47 ++++++++++++++++----------------
1 file changed, 24 insertions(+), 23 deletions(-)
diff --git a/drivers/power/supply/sc27xx_fuel_gauge.c b/drivers/power/supply/sc27xx_fuel_gauge.c
index 24895cc3b41e..9c184d80088b 100644
--- a/drivers/power/supply/sc27xx_fuel_gauge.c
+++ b/drivers/power/supply/sc27xx_fuel_gauge.c
@@ -957,81 +957,82 @@ static int sc27xx_fgu_hw_init(struct sc27xx_fgu_data *data)
static int sc27xx_fgu_probe(struct platform_device *pdev)
{
- struct device_node *np = pdev->dev.of_node;
+ struct device *dev = &pdev->dev;
+ struct device_node *np = dev->of_node;
struct power_supply_config fgu_cfg = { };
struct sc27xx_fgu_data *data;
int ret, irq;
- data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
+ data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
if (!data)
return -ENOMEM;
- data->regmap = dev_get_regmap(pdev->dev.parent, NULL);
+ data->regmap = dev_get_regmap(dev->parent, NULL);
if (!data->regmap) {
- dev_err(&pdev->dev, "failed to get regmap\n");
+ dev_err(dev, "failed to get regmap\n");
return -ENODEV;
}
- ret = device_property_read_u32(&pdev->dev, "reg", &data->base);
+ ret = device_property_read_u32(dev, "reg", &data->base);
if (ret) {
- dev_err(&pdev->dev, "failed to get fgu address\n");
+ dev_err(dev, "failed to get fgu address\n");
return ret;
}
- data->channel = devm_iio_channel_get(&pdev->dev, "bat-temp");
+ data->channel = devm_iio_channel_get(dev, "bat-temp");
if (IS_ERR(data->channel)) {
- dev_err(&pdev->dev, "failed to get IIO channel\n");
+ dev_err(dev, "failed to get IIO channel\n");
return PTR_ERR(data->channel);
}
- data->charge_chan = devm_iio_channel_get(&pdev->dev, "charge-vol");
+ data->charge_chan = devm_iio_channel_get(dev, "charge-vol");
if (IS_ERR(data->charge_chan)) {
- dev_err(&pdev->dev, "failed to get charge IIO channel\n");
+ dev_err(dev, "failed to get charge IIO channel\n");
return PTR_ERR(data->charge_chan);
}
- data->gpiod = devm_gpiod_get(&pdev->dev, "bat-detect", GPIOD_IN);
+ data->gpiod = devm_gpiod_get(dev, "bat-detect", GPIOD_IN);
if (IS_ERR(data->gpiod)) {
- dev_err(&pdev->dev, "failed to get battery detection GPIO\n");
+ dev_err(dev, "failed to get battery detection GPIO\n");
return PTR_ERR(data->gpiod);
}
ret = gpiod_get_value_cansleep(data->gpiod);
if (ret < 0) {
- dev_err(&pdev->dev, "failed to get gpio state\n");
+ dev_err(dev, "failed to get gpio state\n");
return ret;
}
data->bat_present = !!ret;
mutex_init(&data->lock);
- data->dev = &pdev->dev;
+ data->dev = dev;
platform_set_drvdata(pdev, data);
fgu_cfg.drv_data = data;
fgu_cfg.of_node = np;
- data->battery = devm_power_supply_register(&pdev->dev, &sc27xx_fgu_desc,
+ data->battery = devm_power_supply_register(dev, &sc27xx_fgu_desc,
&fgu_cfg);
if (IS_ERR(data->battery)) {
- dev_err(&pdev->dev, "failed to register power supply\n");
+ dev_err(dev, "failed to register power supply\n");
return PTR_ERR(data->battery);
}
ret = sc27xx_fgu_hw_init(data);
if (ret) {
- dev_err(&pdev->dev, "failed to initialize fgu hardware\n");
+ dev_err(dev, "failed to initialize fgu hardware\n");
return ret;
}
- ret = devm_add_action(&pdev->dev, sc27xx_fgu_disable, data);
+ ret = devm_add_action(dev, sc27xx_fgu_disable, data);
if (ret) {
sc27xx_fgu_disable(data);
- dev_err(&pdev->dev, "failed to add fgu disable action\n");
+ dev_err(dev, "failed to add fgu disable action\n");
return ret;
}
irq = platform_get_irq(pdev, 0);
if (irq < 0) {
- dev_err(&pdev->dev, "no irq resource specified\n");
+ dev_err(dev, "no irq resource specified\n");
return irq;
}
@@ -1046,17 +1047,17 @@ static int sc27xx_fgu_probe(struct platform_device *pdev)
irq = gpiod_to_irq(data->gpiod);
if (irq < 0) {
- dev_err(&pdev->dev, "failed to translate GPIO to IRQ\n");
+ dev_err(dev, "failed to translate GPIO to IRQ\n");
return irq;
}
- ret = devm_request_threaded_irq(&pdev->dev, irq, NULL,
+ ret = devm_request_threaded_irq(dev, irq, NULL,
sc27xx_fgu_bat_detection,
IRQF_ONESHOT | IRQF_TRIGGER_RISING |
IRQF_TRIGGER_FALLING,
pdev->name, data);
if (ret) {
- dev_err(&pdev->dev, "failed to request IRQ\n");
+ dev_err(dev, "failed to request IRQ\n");
return ret;
}
--
2.11.0
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH 03/14] power: supply: sc27xx: Introduce local variable 'struct device *dev'
2019-07-08 12:32 [PATCH 03/14] power: supply: sc27xx: Introduce local variable 'struct device *dev' Fuqian Huang
@ 2019-07-09 5:44 ` Baolin Wang
2019-09-02 19:10 ` Sebastian Reichel
1 sibling, 0 replies; 3+ messages in thread
From: Baolin Wang @ 2019-07-09 5:44 UTC (permalink / raw)
To: Fuqian Huang; +Cc: Sebastian Reichel, Linux PM list, LKML
On Mon, 8 Jul 2019 at 20:33, Fuqian Huang <huangfq.daxian@gmail.com> wrote:
>
> Introduce local variable 'struct device *dev' and use it instead of
> dereferencing it repeatly.
>
> Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com>
Looks good to me. Thanks.
Reviewed-by: Baolin Wang <baolin.wang@linaro.org>
> ---
> drivers/power/supply/sc27xx_fuel_gauge.c | 47 ++++++++++++++++----------------
> 1 file changed, 24 insertions(+), 23 deletions(-)
>
> diff --git a/drivers/power/supply/sc27xx_fuel_gauge.c b/drivers/power/supply/sc27xx_fuel_gauge.c
> index 24895cc3b41e..9c184d80088b 100644
> --- a/drivers/power/supply/sc27xx_fuel_gauge.c
> +++ b/drivers/power/supply/sc27xx_fuel_gauge.c
> @@ -957,81 +957,82 @@ static int sc27xx_fgu_hw_init(struct sc27xx_fgu_data *data)
>
> static int sc27xx_fgu_probe(struct platform_device *pdev)
> {
> - struct device_node *np = pdev->dev.of_node;
> + struct device *dev = &pdev->dev;
> + struct device_node *np = dev->of_node;
> struct power_supply_config fgu_cfg = { };
> struct sc27xx_fgu_data *data;
> int ret, irq;
>
> - data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
> + data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
> if (!data)
> return -ENOMEM;
>
> - data->regmap = dev_get_regmap(pdev->dev.parent, NULL);
> + data->regmap = dev_get_regmap(dev->parent, NULL);
> if (!data->regmap) {
> - dev_err(&pdev->dev, "failed to get regmap\n");
> + dev_err(dev, "failed to get regmap\n");
> return -ENODEV;
> }
>
> - ret = device_property_read_u32(&pdev->dev, "reg", &data->base);
> + ret = device_property_read_u32(dev, "reg", &data->base);
> if (ret) {
> - dev_err(&pdev->dev, "failed to get fgu address\n");
> + dev_err(dev, "failed to get fgu address\n");
> return ret;
> }
>
> - data->channel = devm_iio_channel_get(&pdev->dev, "bat-temp");
> + data->channel = devm_iio_channel_get(dev, "bat-temp");
> if (IS_ERR(data->channel)) {
> - dev_err(&pdev->dev, "failed to get IIO channel\n");
> + dev_err(dev, "failed to get IIO channel\n");
> return PTR_ERR(data->channel);
> }
>
> - data->charge_chan = devm_iio_channel_get(&pdev->dev, "charge-vol");
> + data->charge_chan = devm_iio_channel_get(dev, "charge-vol");
> if (IS_ERR(data->charge_chan)) {
> - dev_err(&pdev->dev, "failed to get charge IIO channel\n");
> + dev_err(dev, "failed to get charge IIO channel\n");
> return PTR_ERR(data->charge_chan);
> }
>
> - data->gpiod = devm_gpiod_get(&pdev->dev, "bat-detect", GPIOD_IN);
> + data->gpiod = devm_gpiod_get(dev, "bat-detect", GPIOD_IN);
> if (IS_ERR(data->gpiod)) {
> - dev_err(&pdev->dev, "failed to get battery detection GPIO\n");
> + dev_err(dev, "failed to get battery detection GPIO\n");
> return PTR_ERR(data->gpiod);
> }
>
> ret = gpiod_get_value_cansleep(data->gpiod);
> if (ret < 0) {
> - dev_err(&pdev->dev, "failed to get gpio state\n");
> + dev_err(dev, "failed to get gpio state\n");
> return ret;
> }
>
> data->bat_present = !!ret;
> mutex_init(&data->lock);
> - data->dev = &pdev->dev;
> + data->dev = dev;
> platform_set_drvdata(pdev, data);
>
> fgu_cfg.drv_data = data;
> fgu_cfg.of_node = np;
> - data->battery = devm_power_supply_register(&pdev->dev, &sc27xx_fgu_desc,
> + data->battery = devm_power_supply_register(dev, &sc27xx_fgu_desc,
> &fgu_cfg);
> if (IS_ERR(data->battery)) {
> - dev_err(&pdev->dev, "failed to register power supply\n");
> + dev_err(dev, "failed to register power supply\n");
> return PTR_ERR(data->battery);
> }
>
> ret = sc27xx_fgu_hw_init(data);
> if (ret) {
> - dev_err(&pdev->dev, "failed to initialize fgu hardware\n");
> + dev_err(dev, "failed to initialize fgu hardware\n");
> return ret;
> }
>
> - ret = devm_add_action(&pdev->dev, sc27xx_fgu_disable, data);
> + ret = devm_add_action(dev, sc27xx_fgu_disable, data);
> if (ret) {
> sc27xx_fgu_disable(data);
> - dev_err(&pdev->dev, "failed to add fgu disable action\n");
> + dev_err(dev, "failed to add fgu disable action\n");
> return ret;
> }
>
> irq = platform_get_irq(pdev, 0);
> if (irq < 0) {
> - dev_err(&pdev->dev, "no irq resource specified\n");
> + dev_err(dev, "no irq resource specified\n");
> return irq;
> }
>
> @@ -1046,17 +1047,17 @@ static int sc27xx_fgu_probe(struct platform_device *pdev)
>
> irq = gpiod_to_irq(data->gpiod);
> if (irq < 0) {
> - dev_err(&pdev->dev, "failed to translate GPIO to IRQ\n");
> + dev_err(dev, "failed to translate GPIO to IRQ\n");
> return irq;
> }
>
> - ret = devm_request_threaded_irq(&pdev->dev, irq, NULL,
> + ret = devm_request_threaded_irq(dev, irq, NULL,
> sc27xx_fgu_bat_detection,
> IRQF_ONESHOT | IRQF_TRIGGER_RISING |
> IRQF_TRIGGER_FALLING,
> pdev->name, data);
> if (ret) {
> - dev_err(&pdev->dev, "failed to request IRQ\n");
> + dev_err(dev, "failed to request IRQ\n");
> return ret;
> }
>
> --
> 2.11.0
>
--
Baolin Wang
Best Regards
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH 03/14] power: supply: sc27xx: Introduce local variable 'struct device *dev'
2019-07-08 12:32 [PATCH 03/14] power: supply: sc27xx: Introduce local variable 'struct device *dev' Fuqian Huang
2019-07-09 5:44 ` Baolin Wang
@ 2019-09-02 19:10 ` Sebastian Reichel
1 sibling, 0 replies; 3+ messages in thread
From: Sebastian Reichel @ 2019-09-02 19:10 UTC (permalink / raw)
To: Fuqian Huang; +Cc: linux-pm, linux-kernel
[-- Attachment #1: Type: text/plain, Size: 5048 bytes --]
Hi,
On Mon, Jul 08, 2019 at 08:32:51PM +0800, Fuqian Huang wrote:
> Introduce local variable 'struct device *dev' and use it instead of
> dereferencing it repeatly.
>
> Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com>
> ---
Thanks, queued.
-- Sebastian
> drivers/power/supply/sc27xx_fuel_gauge.c | 47 ++++++++++++++++----------------
> 1 file changed, 24 insertions(+), 23 deletions(-)
>
> diff --git a/drivers/power/supply/sc27xx_fuel_gauge.c b/drivers/power/supply/sc27xx_fuel_gauge.c
> index 24895cc3b41e..9c184d80088b 100644
> --- a/drivers/power/supply/sc27xx_fuel_gauge.c
> +++ b/drivers/power/supply/sc27xx_fuel_gauge.c
> @@ -957,81 +957,82 @@ static int sc27xx_fgu_hw_init(struct sc27xx_fgu_data *data)
>
> static int sc27xx_fgu_probe(struct platform_device *pdev)
> {
> - struct device_node *np = pdev->dev.of_node;
> + struct device *dev = &pdev->dev;
> + struct device_node *np = dev->of_node;
> struct power_supply_config fgu_cfg = { };
> struct sc27xx_fgu_data *data;
> int ret, irq;
>
> - data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
> + data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
> if (!data)
> return -ENOMEM;
>
> - data->regmap = dev_get_regmap(pdev->dev.parent, NULL);
> + data->regmap = dev_get_regmap(dev->parent, NULL);
> if (!data->regmap) {
> - dev_err(&pdev->dev, "failed to get regmap\n");
> + dev_err(dev, "failed to get regmap\n");
> return -ENODEV;
> }
>
> - ret = device_property_read_u32(&pdev->dev, "reg", &data->base);
> + ret = device_property_read_u32(dev, "reg", &data->base);
> if (ret) {
> - dev_err(&pdev->dev, "failed to get fgu address\n");
> + dev_err(dev, "failed to get fgu address\n");
> return ret;
> }
>
> - data->channel = devm_iio_channel_get(&pdev->dev, "bat-temp");
> + data->channel = devm_iio_channel_get(dev, "bat-temp");
> if (IS_ERR(data->channel)) {
> - dev_err(&pdev->dev, "failed to get IIO channel\n");
> + dev_err(dev, "failed to get IIO channel\n");
> return PTR_ERR(data->channel);
> }
>
> - data->charge_chan = devm_iio_channel_get(&pdev->dev, "charge-vol");
> + data->charge_chan = devm_iio_channel_get(dev, "charge-vol");
> if (IS_ERR(data->charge_chan)) {
> - dev_err(&pdev->dev, "failed to get charge IIO channel\n");
> + dev_err(dev, "failed to get charge IIO channel\n");
> return PTR_ERR(data->charge_chan);
> }
>
> - data->gpiod = devm_gpiod_get(&pdev->dev, "bat-detect", GPIOD_IN);
> + data->gpiod = devm_gpiod_get(dev, "bat-detect", GPIOD_IN);
> if (IS_ERR(data->gpiod)) {
> - dev_err(&pdev->dev, "failed to get battery detection GPIO\n");
> + dev_err(dev, "failed to get battery detection GPIO\n");
> return PTR_ERR(data->gpiod);
> }
>
> ret = gpiod_get_value_cansleep(data->gpiod);
> if (ret < 0) {
> - dev_err(&pdev->dev, "failed to get gpio state\n");
> + dev_err(dev, "failed to get gpio state\n");
> return ret;
> }
>
> data->bat_present = !!ret;
> mutex_init(&data->lock);
> - data->dev = &pdev->dev;
> + data->dev = dev;
> platform_set_drvdata(pdev, data);
>
> fgu_cfg.drv_data = data;
> fgu_cfg.of_node = np;
> - data->battery = devm_power_supply_register(&pdev->dev, &sc27xx_fgu_desc,
> + data->battery = devm_power_supply_register(dev, &sc27xx_fgu_desc,
> &fgu_cfg);
> if (IS_ERR(data->battery)) {
> - dev_err(&pdev->dev, "failed to register power supply\n");
> + dev_err(dev, "failed to register power supply\n");
> return PTR_ERR(data->battery);
> }
>
> ret = sc27xx_fgu_hw_init(data);
> if (ret) {
> - dev_err(&pdev->dev, "failed to initialize fgu hardware\n");
> + dev_err(dev, "failed to initialize fgu hardware\n");
> return ret;
> }
>
> - ret = devm_add_action(&pdev->dev, sc27xx_fgu_disable, data);
> + ret = devm_add_action(dev, sc27xx_fgu_disable, data);
> if (ret) {
> sc27xx_fgu_disable(data);
> - dev_err(&pdev->dev, "failed to add fgu disable action\n");
> + dev_err(dev, "failed to add fgu disable action\n");
> return ret;
> }
>
> irq = platform_get_irq(pdev, 0);
> if (irq < 0) {
> - dev_err(&pdev->dev, "no irq resource specified\n");
> + dev_err(dev, "no irq resource specified\n");
> return irq;
> }
>
> @@ -1046,17 +1047,17 @@ static int sc27xx_fgu_probe(struct platform_device *pdev)
>
> irq = gpiod_to_irq(data->gpiod);
> if (irq < 0) {
> - dev_err(&pdev->dev, "failed to translate GPIO to IRQ\n");
> + dev_err(dev, "failed to translate GPIO to IRQ\n");
> return irq;
> }
>
> - ret = devm_request_threaded_irq(&pdev->dev, irq, NULL,
> + ret = devm_request_threaded_irq(dev, irq, NULL,
> sc27xx_fgu_bat_detection,
> IRQF_ONESHOT | IRQF_TRIGGER_RISING |
> IRQF_TRIGGER_FALLING,
> pdev->name, data);
> if (ret) {
> - dev_err(&pdev->dev, "failed to request IRQ\n");
> + dev_err(dev, "failed to request IRQ\n");
> return ret;
> }
>
> --
> 2.11.0
>
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 833 bytes --]
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2019-09-02 19:10 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2019-07-08 12:32 [PATCH 03/14] power: supply: sc27xx: Introduce local variable 'struct device *dev' Fuqian Huang
2019-07-09 5:44 ` Baolin Wang
2019-09-02 19:10 ` Sebastian Reichel
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