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authorDavid Wu <david.wu@rock-chips.com>2017-08-08 23:38:30 +0800
committerThierry Reding <thierry.reding@gmail.com>2017-08-18 17:33:07 +0200
commitf90df9cda68d774c600860e32602b04c741bf95c (patch)
tree5021b586051cd927c7aeff61abc9b82436a701f9 /drivers/pwm/pwm-rockchip.c
parent27922ff59893e3445f69e397bcd92ae06fa89ca7 (diff)
pwm: rockchip: Remove the judge from return value of pwm_config()
It seems the rockchip_pwm_config() always returns the result 0, so remove the judge. Signed-off-by: David Wu <david.wu@rock-chips.com> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Diffstat (limited to 'drivers/pwm/pwm-rockchip.c')
-rw-r--r--drivers/pwm/pwm-rockchip.c12
1 files changed, 2 insertions, 10 deletions
diff --git a/drivers/pwm/pwm-rockchip.c b/drivers/pwm/pwm-rockchip.c
index ac3cd5ec5310..33bbb5a97b72 100644
--- a/drivers/pwm/pwm-rockchip.c
+++ b/drivers/pwm/pwm-rockchip.c
@@ -165,7 +165,7 @@ static void rockchip_pwm_get_state(struct pwm_chip *chip,
clk_disable(pc->pclk);
}
-static int rockchip_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
+static void rockchip_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
int duty_ns, int period_ns)
{
struct rockchip_pwm_chip *pc = to_rockchip_pwm_chip(chip);
@@ -188,8 +188,6 @@ static int rockchip_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
writel(period, pc->base + pc->data->regs.period);
writel(duty, pc->base + pc->data->regs.duty);
-
- return 0;
}
static int rockchip_pwm_enable(struct pwm_chip *chip,
@@ -236,13 +234,7 @@ static int rockchip_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm,
enabled = false;
}
- ret = rockchip_pwm_config(chip, pwm, state->duty_cycle, state->period);
- if (ret) {
- if (enabled != curstate.enabled)
- rockchip_pwm_enable(chip, pwm, !enabled,
- state->polarity);
- goto out;
- }
+ rockchip_pwm_config(chip, pwm, state->duty_cycle, state->period);
if (state->enabled != enabled) {
ret = rockchip_pwm_enable(chip, pwm, state->enabled,

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