kevin/linux
1
Fork 0
Code

pwm: tiehrpwm: Make use of devm_pwmchip_alloc() function

Browse Source 
This prepares the pwm-tiecap driver to further changes of the pwm core
outlined in the commit introducing devm_pwmchip_alloc(). There is no
intended semantical change and the driver should behave as before.

Link: https://lore.kernel.org/r/62fbac428cae0942f8e88234bf249537fcd890a3.1707900770.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
This commit is contained in:
Uwe Kleine-König 2024-02-14 10:33:06 +01:00
parent e003a687aa
commit de830057d7
1 changed files with 5 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
drivers/pwm/pwm-tiehrpwm.c
View File

@ -105,7 +105,6 @@ struct ehrpwm_context {
};
struct ehrpwm_pwm_chip {
struct pwm_chip chip;
unsigned long clk_rate;
void __iomem *mmio_base;
unsigned long period_cycles[NUM_PWM_CHANNEL];
@ -116,7 +115,7 @@ struct ehrpwm_pwm_chip {
static inline struct ehrpwm_pwm_chip *to_ehrpwm_pwm_chip(struct pwm_chip *chip)
{
return container_of(chip, struct ehrpwm_pwm_chip, chip);
return pwmchip_get_drvdata(chip);
}
static inline u16 ehrpwm_read(void __iomem *base, unsigned int offset)
@ -454,9 +453,10 @@ static int ehrpwm_pwm_probe(struct platform_device *pdev)
struct clk *clk;
int ret;
pc = devm_kzalloc(&pdev->dev, sizeof(*pc), GFP_KERNEL);
if (!pc)
return -ENOMEM;
chip = devm_pwmchip_alloc(&pdev->dev, NUM_PWM_CHANNEL, sizeof(*pc));
if (IS_ERR(chip))
return PTR_ERR(chip);
pc = to_ehrpwm_pwm_chip(chip);
clk = devm_clk_get(&pdev->dev, "fck");
if (IS_ERR(clk)) {
@ -475,10 +475,7 @@ static int ehrpwm_pwm_probe(struct platform_device *pdev)
return -EINVAL;
}
chip = &pc->chip;
chip->dev = &pdev->dev;
chip->ops = &ehrpwm_pwm_ops;
chip->npwm = NUM_PWM_CHANNEL;
pc->mmio_base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(pc->mmio_base))