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path: root/drivers/pwm
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Diffstat (limited to 'drivers/pwm')
-rw-r--r--drivers/pwm/pwm-lpc18xx-sct.c12
1 files changed, 5 insertions, 7 deletions
diff --git a/drivers/pwm/pwm-lpc18xx-sct.c b/drivers/pwm/pwm-lpc18xx-sct.c
index 8cc8ae16553c..6cf02554066c 100644
--- a/drivers/pwm/pwm-lpc18xx-sct.c
+++ b/drivers/pwm/pwm-lpc18xx-sct.c
@@ -76,6 +76,8 @@
#define LPC18XX_PWM_EVENT_PERIOD 0
#define LPC18XX_PWM_EVENT_MAX 16
+#define LPC18XX_NUM_PWMS 16
+
/* SCT conflict resolution */
enum lpc18xx_pwm_res_action {
LPC18XX_PWM_RES_NONE,
@@ -101,6 +103,7 @@ struct lpc18xx_pwm_chip {
unsigned long event_map;
struct mutex res_lock;
struct mutex period_lock;
+ struct lpc18xx_pwm_data channeldata[LPC18XX_NUM_PWMS];
};
static inline struct lpc18xx_pwm_chip *
@@ -370,7 +373,7 @@ static int lpc18xx_pwm_probe(struct platform_device *pdev)
lpc18xx_pwm->chip.dev = &pdev->dev;
lpc18xx_pwm->chip.ops = &lpc18xx_pwm_ops;
- lpc18xx_pwm->chip.npwm = 16;
+ lpc18xx_pwm->chip.npwm = LPC18XX_NUM_PWMS;
/* SCT counter must be in unify (32 bit) mode */
lpc18xx_pwm_writel(lpc18xx_pwm, LPC18XX_PWM_CONFIG,
@@ -400,12 +403,7 @@ static int lpc18xx_pwm_probe(struct platform_device *pdev)
pwm = &lpc18xx_pwm->chip.pwms[i];
- data = devm_kzalloc(lpc18xx_pwm->dev, sizeof(*data),
- GFP_KERNEL);
- if (!data) {
- ret = -ENOMEM;
- goto disable_pwmclk;
- }
+ data = &lpc18xx_pwm->channeldata[i];
pwm_set_chip_data(pwm, data);
}