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pwm: rockchip: Make pwm configure correctly for enable_conf

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If some PWM enable_conf was configured with different values at
uboot/loader, the enable_conf should be cleaned firstly and
configured them at kernel. It is better to use the same parameters
on both sides to ensure excessive smoothing.

Change-Id: Ib1b7b55e9816639d9915543dadf059ce0e8be103
Signed-off-by: David Wu <david.wu@rock-chips.com>
This commit is contained in:
David Wu
2019-10-29 15:41:06 +08:00
committed by Tao Huang
parent 5717787f94
commit ddce12799c
1 changed files with 6 additions and 0 deletions
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6
drivers/pwm/pwm-rockchip.c
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@@ -55,6 +55,7 @@ struct rockchip_pwm_data {
bool supports_lock;
bool vop_pwm;
u32 enable_conf;
u32 enable_conf_mask;
};
static inline struct rockchip_pwm_chip *to_rockchip_pwm_chip(struct pwm_chip *c)
@@ -183,6 +184,7 @@ static int rockchip_pwm_enable(struct pwm_chip *chip,
}
val = readl_relaxed(pc->base + pc->data->regs.ctrl);
val &= ~pc->data->enable_conf_mask;
if (enable)
val |= enable_conf;
@@ -259,6 +261,7 @@ static const struct rockchip_pwm_data pwm_data_v1 = {
.supports_lock = false,
.vop_pwm = false,
.enable_conf = PWM_CTRL_OUTPUT_EN | PWM_CTRL_TIMER_EN,
.enable_conf_mask = BIT(1) | BIT(3),
};
static const struct rockchip_pwm_data pwm_data_v2 = {
@@ -274,6 +277,7 @@ static const struct rockchip_pwm_data pwm_data_v2 = {
.vop_pwm = false,
.enable_conf = PWM_OUTPUT_LEFT | PWM_LP_DISABLE | PWM_ENABLE |
PWM_CONTINUOUS,
.enable_conf_mask = GENMASK(2, 0) | BIT(5) | BIT(8),
};
static const struct rockchip_pwm_data pwm_data_vop = {
@@ -289,6 +293,7 @@ static const struct rockchip_pwm_data pwm_data_vop = {
.vop_pwm = true,
.enable_conf = PWM_OUTPUT_LEFT | PWM_LP_DISABLE | PWM_ENABLE |
PWM_CONTINUOUS,
.enable_conf_mask = GENMASK(2, 0) | BIT(5) | BIT(8),
};
static const struct rockchip_pwm_data pwm_data_v3 = {
@@ -304,6 +309,7 @@ static const struct rockchip_pwm_data pwm_data_v3 = {
.vop_pwm = false,
.enable_conf = PWM_OUTPUT_LEFT | PWM_LP_DISABLE | PWM_ENABLE |
PWM_CONTINUOUS,
.enable_conf_mask = GENMASK(2, 0) | BIT(5) | BIT(8),
};
static const struct of_device_id rockchip_pwm_dt_ids[] = {