@@ -92,7 +92,6 @@ struct lpc18xx_pwm_data {
};
struct lpc18xx_pwm_chip {
- struct pwm_chip chip;
void __iomem *base;
struct clk *pwm_clk;
unsigned long clk_rate;
@@ -109,7 +108,7 @@ struct lpc18xx_pwm_chip {
static inline struct lpc18xx_pwm_chip *
to_lpc18xx_pwm_chip(struct pwm_chip *chip)
{
- return container_of(chip, struct lpc18xx_pwm_chip, chip);
+ return pwmchip_get_drvdata(chip);
}
static inline void lpc18xx_pwm_writel(struct lpc18xx_pwm_chip *lpc18xx_pwm,
@@ -353,11 +352,10 @@ static int lpc18xx_pwm_probe(struct platform_device *pdev)
int ret;
u64 val;
- lpc18xx_pwm = devm_kzalloc(&pdev->dev, sizeof(*lpc18xx_pwm),
- GFP_KERNEL);
- if (!lpc18xx_pwm)
- return -ENOMEM;
- chip = &lpc18xx_pwm->chip;
+ chip = devm_pwmchip_alloc(&pdev->dev, LPC18XX_NUM_PWMS, sizeof(*lpc18xx_pwm));
+ if (IS_ERR(chip))
+ return PTR_ERR(chip);
+ lpc18xx_pwm = to_lpc18xx_pwm_chip(chip);
lpc18xx_pwm->base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(lpc18xx_pwm->base))
@@ -388,9 +386,7 @@ static int lpc18xx_pwm_probe(struct platform_device *pdev)
lpc18xx_pwm->min_period_ns = DIV_ROUND_UP(NSEC_PER_SEC,
lpc18xx_pwm->clk_rate);
- chip->dev = &pdev->dev;
chip->ops = &lpc18xx_pwm_ops;
- chip->npwm = LPC18XX_NUM_PWMS;
/* SCT counter must be in unify (32 bit) mode */
lpc18xx_pwm_writel(lpc18xx_pwm, LPC18XX_PWM_CONFIG,
This prepares the pwm-lpc18xx-sct 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. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> --- drivers/pwm/pwm-lpc18xx-sct.c | 14 +++++--------- 1 file changed, 5 insertions(+), 9 deletions(-)