diff options
Diffstat (limited to 'drivers/misc/ep93xx_pwm.c')
| -rw-r--r-- | drivers/misc/ep93xx_pwm.c | 15 |
1 files changed, 6 insertions, 9 deletions
diff --git a/drivers/misc/ep93xx_pwm.c b/drivers/misc/ep93xx_pwm.c index ab5a481..7a13304 100644 --- a/drivers/misc/ep93xx_pwm.c +++ b/drivers/misc/ep93xx_pwm.c @@ -44,11 +44,6 @@ static inline u16 ep93xx_pwm_read_tc(struct ep93xx_pwm *pwm) return readl(pwm->mmio_base + EP93XX_PWMx_TERM_COUNT); } -static inline void ep93xx_pwm_write_dc(struct ep93xx_pwm *pwm, u16 value) -{ - writel(value, pwm->mmio_base + EP93XX_PWMx_DUTY_CYCLE); -} - static inline void ep93xx_pwm_enable(struct ep93xx_pwm *pwm) { writel(0x1, pwm->mmio_base + EP93XX_PWMx_ENABLE); @@ -153,9 +148,9 @@ static ssize_t ep93xx_pwm_set_freq(struct device *dev, /* If pwm is running, order is important */ if (val > term) { writel(val, pwm->mmio_base + EP93XX_PWMx_TERM_COUNT); - ep93xx_pwm_write_dc(pwm, duty); + writel(duty, pwm->mmio_base + EP93XX_PWMx_DUTY_CYCLE); } else { - ep93xx_pwm_write_dc(pwm, duty); + writel(duty, pwm->mmio_base + EP93XX_PWMx_DUTY_CYCLE); writel(val, pwm->mmio_base + EP93XX_PWMx_TERM_COUNT); } @@ -191,7 +186,9 @@ static ssize_t ep93xx_pwm_set_duty_percent(struct device *dev, if (val > 0 && val < 100) { u32 term = ep93xx_pwm_read_tc(pwm); - ep93xx_pwm_write_dc(pwm, ((term + 1) * val / 100) - 1); + u32 duty = ((term + 1) * val / 100) - 1; + + writel(duty, pwm->mmio_base + EP93XX_PWMx_DUTY_CYCLE); pwm->duty_percent = val; return count; } @@ -286,7 +283,7 @@ static int __init ep93xx_pwm_probe(struct platform_device *pdev) /* disable pwm at startup. Avoids zero value. */ ep93xx_pwm_disable(pwm); writel(EP93XX_PWM_MAX_COUNT, pwm->mmio_base + EP93XX_PWMx_TERM_COUNT); - ep93xx_pwm_write_dc(pwm, EP93XX_PWM_MAX_COUNT / 2); + writel(EP93XX_PWM_MAX_COUNT/2, pwm->mmio_base + EP93XX_PWMx_DUTY_CYCLE); clk_enable(pwm->clk); |
