@@ -56,17 +56,17 @@ static inline struct berlin_pwm_chip *to_berlin_pwm_chip(struct pwm_chip *chip)
return container_of(chip, struct berlin_pwm_chip, chip);
}
-static inline u32 berlin_pwm_readl(struct berlin_pwm_chip *chip,
+static inline u32 berlin_pwm_readl(struct berlin_pwm_chip *bpc,
unsigned int channel, unsigned long offset)
{
- return readl_relaxed(chip->base + channel * 0x10 + offset);
+ return readl_relaxed(bpc->base + channel * 0x10 + offset);
}
-static inline void berlin_pwm_writel(struct berlin_pwm_chip *chip,
+static inline void berlin_pwm_writel(struct berlin_pwm_chip *bpc,
unsigned int channel, u32 value,
unsigned long offset)
{
- writel_relaxed(value, chip->base + channel * 0x10 + offset);
+ writel_relaxed(value, bpc->base + channel * 0x10 + offset);
}
static int berlin_pwm_request(struct pwm_chip *chip, struct pwm_device *pwm)
@@ -87,15 +87,15 @@ static void berlin_pwm_free(struct pwm_chip *chip, struct pwm_device *pwm)
kfree(channel);
}
-static int berlin_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm_dev,
+static int berlin_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
int duty_ns, int period_ns)
{
- struct berlin_pwm_chip *pwm = to_berlin_pwm_chip(chip);
+ struct berlin_pwm_chip *bpc = to_berlin_pwm_chip(chip);
bool prescale_4096 = false;
u32 value, duty, period;
u64 cycles;
- cycles = clk_get_rate(pwm->clk);
+ cycles = clk_get_rate(bpc->clk);
cycles *= period_ns;
do_div(cycles, NSEC_PER_SEC);
@@ -112,59 +112,59 @@ static int berlin_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm_dev,
do_div(cycles, period_ns);
duty = cycles;
- value = berlin_pwm_readl(pwm, pwm_dev->hwpwm, BERLIN_PWM_CONTROL);
+ value = berlin_pwm_readl(bpc, pwm->hwpwm, BERLIN_PWM_CONTROL);
if (prescale_4096)
value |= BERLIN_PWM_PRESCALE_4096;
else
value &= ~BERLIN_PWM_PRESCALE_4096;
- berlin_pwm_writel(pwm, pwm_dev->hwpwm, value, BERLIN_PWM_CONTROL);
+ berlin_pwm_writel(bpc, pwm->hwpwm, value, BERLIN_PWM_CONTROL);
- berlin_pwm_writel(pwm, pwm_dev->hwpwm, duty, BERLIN_PWM_DUTY);
- berlin_pwm_writel(pwm, pwm_dev->hwpwm, period, BERLIN_PWM_TCNT);
+ berlin_pwm_writel(bpc, pwm->hwpwm, duty, BERLIN_PWM_DUTY);
+ berlin_pwm_writel(bpc, pwm->hwpwm, period, BERLIN_PWM_TCNT);
return 0;
}
static int berlin_pwm_set_polarity(struct pwm_chip *chip,
- struct pwm_device *pwm_dev,
+ struct pwm_device *pwm,
enum pwm_polarity polarity)
{
- struct berlin_pwm_chip *pwm = to_berlin_pwm_chip(chip);
+ struct berlin_pwm_chip *bpc = to_berlin_pwm_chip(chip);
u32 value;
- value = berlin_pwm_readl(pwm, pwm_dev->hwpwm, BERLIN_PWM_CONTROL);
+ value = berlin_pwm_readl(bpc, pwm->hwpwm, BERLIN_PWM_CONTROL);
if (polarity == PWM_POLARITY_NORMAL)
value &= ~BERLIN_PWM_INVERT_POLARITY;
else
value |= BERLIN_PWM_INVERT_POLARITY;
- berlin_pwm_writel(pwm, pwm_dev->hwpwm, value, BERLIN_PWM_CONTROL);
+ berlin_pwm_writel(bpc, pwm->hwpwm, value, BERLIN_PWM_CONTROL);
return 0;
}
-static int berlin_pwm_enable(struct pwm_chip *chip, struct pwm_device *pwm_dev)
+static int berlin_pwm_enable(struct pwm_chip *chip, struct pwm_device *pwm)
{
- struct berlin_pwm_chip *pwm = to_berlin_pwm_chip(chip);
+ struct berlin_pwm_chip *bpc = to_berlin_pwm_chip(chip);
u32 value;
- value = berlin_pwm_readl(pwm, pwm_dev->hwpwm, BERLIN_PWM_EN);
+ value = berlin_pwm_readl(bpc, pwm->hwpwm, BERLIN_PWM_EN);
value |= BERLIN_PWM_ENABLE;
- berlin_pwm_writel(pwm, pwm_dev->hwpwm, value, BERLIN_PWM_EN);
+ berlin_pwm_writel(bpc, pwm->hwpwm, value, BERLIN_PWM_EN);
return 0;
}
static void berlin_pwm_disable(struct pwm_chip *chip,
- struct pwm_device *pwm_dev)
+ struct pwm_device *pwm)
{
- struct berlin_pwm_chip *pwm = to_berlin_pwm_chip(chip);
+ struct berlin_pwm_chip *bpc = to_berlin_pwm_chip(chip);
u32 value;
- value = berlin_pwm_readl(pwm, pwm_dev->hwpwm, BERLIN_PWM_EN);
+ value = berlin_pwm_readl(bpc, pwm->hwpwm, BERLIN_PWM_EN);
value &= ~BERLIN_PWM_ENABLE;
- berlin_pwm_writel(pwm, pwm_dev->hwpwm, value, BERLIN_PWM_EN);
+ berlin_pwm_writel(bpc, pwm->hwpwm, value, BERLIN_PWM_EN);
}
static const struct pwm_ops berlin_pwm_ops = {
@@ -185,50 +185,50 @@ MODULE_DEVICE_TABLE(of, berlin_pwm_match);
static int berlin_pwm_probe(struct platform_device *pdev)
{
- struct berlin_pwm_chip *pwm;
+ struct berlin_pwm_chip *bpc;
int ret;
- pwm = devm_kzalloc(&pdev->dev, sizeof(*pwm), GFP_KERNEL);
- if (!pwm)
+ bpc = devm_kzalloc(&pdev->dev, sizeof(*bpc), GFP_KERNEL);
+ if (!bpc)
return -ENOMEM;
- pwm->base = devm_platform_ioremap_resource(pdev, 0);
- if (IS_ERR(pwm->base))
- return PTR_ERR(pwm->base);
+ bpc->base = devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR(bpc->base))
+ return PTR_ERR(bpc->base);
- pwm->clk = devm_clk_get(&pdev->dev, NULL);
- if (IS_ERR(pwm->clk))
- return PTR_ERR(pwm->clk);
+ bpc->clk = devm_clk_get(&pdev->dev, NULL);
+ if (IS_ERR(bpc->clk))
+ return PTR_ERR(bpc->clk);
- ret = clk_prepare_enable(pwm->clk);
+ ret = clk_prepare_enable(bpc->clk);
if (ret)
return ret;
- pwm->chip.dev = &pdev->dev;
- pwm->chip.ops = &berlin_pwm_ops;
- pwm->chip.npwm = 4;
- pwm->chip.of_xlate = of_pwm_xlate_with_flags;
- pwm->chip.of_pwm_n_cells = 3;
+ bpc->chip.dev = &pdev->dev;
+ bpc->chip.ops = &berlin_pwm_ops;
+ bpc->chip.npwm = 4;
+ bpc->chip.of_xlate = of_pwm_xlate_with_flags;
+ bpc->chip.of_pwm_n_cells = 3;
- ret = pwmchip_add(&pwm->chip);
+ ret = pwmchip_add(&bpc->chip);
if (ret < 0) {
dev_err(&pdev->dev, "failed to add PWM chip: %d\n", ret);
- clk_disable_unprepare(pwm->clk);
+ clk_disable_unprepare(bpc->clk);
return ret;
}
- platform_set_drvdata(pdev, pwm);
+ platform_set_drvdata(pdev, bpc);
return 0;
}
static int berlin_pwm_remove(struct platform_device *pdev)
{
- struct berlin_pwm_chip *pwm = platform_get_drvdata(pdev);
+ struct berlin_pwm_chip *bpc = platform_get_drvdata(pdev);
int ret;
- ret = pwmchip_remove(&pwm->chip);
- clk_disable_unprepare(pwm->clk);
+ ret = pwmchip_remove(&bpc->chip);
+ clk_disable_unprepare(bpc->clk);
return ret;
}
@@ -236,48 +236,48 @@ static int berlin_pwm_remove(struct platform_device *pdev)
#ifdef CONFIG_PM_SLEEP
static int berlin_pwm_suspend(struct device *dev)
{
- struct berlin_pwm_chip *pwm = dev_get_drvdata(dev);
+ struct berlin_pwm_chip *bpc = dev_get_drvdata(dev);
unsigned int i;
- for (i = 0; i < pwm->chip.npwm; i++) {
+ for (i = 0; i < bpc->chip.npwm; i++) {
struct berlin_pwm_channel *channel;
- channel = pwm_get_chip_data(&pwm->chip.pwms[i]);
+ channel = pwm_get_chip_data(&bpc->chip.pwms[i]);
if (!channel)
continue;
- channel->enable = berlin_pwm_readl(pwm, i, BERLIN_PWM_ENABLE);
- channel->ctrl = berlin_pwm_readl(pwm, i, BERLIN_PWM_CONTROL);
- channel->duty = berlin_pwm_readl(pwm, i, BERLIN_PWM_DUTY);
- channel->tcnt = berlin_pwm_readl(pwm, i, BERLIN_PWM_TCNT);
+ channel->enable = berlin_pwm_readl(bpc, i, BERLIN_PWM_ENABLE);
+ channel->ctrl = berlin_pwm_readl(bpc, i, BERLIN_PWM_CONTROL);
+ channel->duty = berlin_pwm_readl(bpc, i, BERLIN_PWM_DUTY);
+ channel->tcnt = berlin_pwm_readl(bpc, i, BERLIN_PWM_TCNT);
}
- clk_disable_unprepare(pwm->clk);
+ clk_disable_unprepare(bpc->clk);
return 0;
}
static int berlin_pwm_resume(struct device *dev)
{
- struct berlin_pwm_chip *pwm = dev_get_drvdata(dev);
+ struct berlin_pwm_chip *bpc = dev_get_drvdata(dev);
unsigned int i;
int ret;
- ret = clk_prepare_enable(pwm->clk);
+ ret = clk_prepare_enable(bpc->clk);
if (ret)
return ret;
- for (i = 0; i < pwm->chip.npwm; i++) {
+ for (i = 0; i < bpc->chip.npwm; i++) {
struct berlin_pwm_channel *channel;
- channel = pwm_get_chip_data(&pwm->chip.pwms[i]);
+ channel = pwm_get_chip_data(&bpc->chip.pwms[i]);
if (!channel)
continue;
- berlin_pwm_writel(pwm, i, channel->ctrl, BERLIN_PWM_CONTROL);
- berlin_pwm_writel(pwm, i, channel->duty, BERLIN_PWM_DUTY);
- berlin_pwm_writel(pwm, i, channel->tcnt, BERLIN_PWM_TCNT);
- berlin_pwm_writel(pwm, i, channel->enable, BERLIN_PWM_ENABLE);
+ berlin_pwm_writel(bpc, i, channel->ctrl, BERLIN_PWM_CONTROL);
+ berlin_pwm_writel(bpc, i, channel->duty, BERLIN_PWM_DUTY);
+ berlin_pwm_writel(bpc, i, channel->tcnt, BERLIN_PWM_TCNT);
+ berlin_pwm_writel(bpc, i, channel->enable, BERLIN_PWM_ENABLE);
}
return 0;
A struct berlin_pwm_chip* is now always called "bpc" (instead of "pwm" which is usually used for struct pwm_device* or "chip" which is usually used for struct pwm_chip*). The struct pwm_device* variables were named "pwm_dev" or "pwm"; they is now always called "pwm". Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> --- drivers/pwm/pwm-berlin.c | 120 +++++++++++++++++++-------------------- 1 file changed, 60 insertions(+), 60 deletions(-) base-commit: a6efb35019d00f483a0e5f188747723371d659fe