From 9e1cdff825e92f6d9a2668f68527c2bdd68da945 Mon Sep 17 00:00:00 2001
From: David Wu <david.wu@rock-chips.com>
Date: Tue, 8 Aug 2017 23:38:30 +0800
Subject: [PATCH 48/86] pwm: rockchip: Remove the judge from return value of
pwm_config()
Git-commit: f90df9cda68d774c600860e32602b04c741bf95c
Patch-mainline: v4.14-rc1
References: fate#323912
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>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@suse.com>
---
drivers/pwm/pwm-rockchip.c | 12 ++----------
1 file 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,
--
2.11.0