[PATCH v5 34/46] clk: pwm: switch to the atomic API

Boris Brezillon
2016-03-30T20:10:11Z

pwm_config/enable/disable() have been deprecated and should be replaced
by pwm_apply_state().

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
---
drivers/clk/clk-pwm.c | 26 +++++++++++++++++++++++---
1 file changed, 23 insertions(+), 3 deletions(-)

diff --git a/drivers/clk/clk-pwm.c b/drivers/clk/clk-pwm.c
index ebcd738..49ec5b1 100644
--- a/drivers/clk/clk-pwm.c
+++ b/drivers/clk/clk-pwm.c
@@ -28,15 +28,29 @@ static inline struct clk_pwm *to_clk_pwm(struct clk_hw *hw)
static int clk_pwm_prepare(struct clk_hw *hw)
{
struct clk_pwm *clk_pwm = to_clk_pwm(hw);
+ struct pwm_state pstate;

- return pwm_enable(clk_pwm->pwm);
+ pwm_get_state(clk_pwm->pwm, &pstate);
+ if (pstate.enabled)
+ return 0;
+
+ pstate.enabled = true;
+
+ return pwm_apply_state(clk_pwm->pwm, &pstate);
}

static void clk_pwm_unprepare(struct clk_hw *hw)
{
struct clk_pwm *clk_pwm = to_clk_pwm(hw);
+ struct pwm_state pstate;
+
+ pwm_get_state(clk_pwm->pwm, &pstate);
+ if (!pstate.enabled)
+ return;

- pwm_disable(clk_pwm->pwm);
+ pstate.enabled = false;
+
+ pwm_apply_state(clk_pwm->pwm, &pstate);
}

static unsigned long clk_pwm_recalc_rate(struct clk_hw *hw,
@@ -56,6 +70,7 @@ static const struct clk_ops clk_pwm_ops = {
static int clk_pwm_probe(struct platform_device *pdev)
{
struct device_node *node = pdev->dev.of_node;
+ struct pwm_state pstate;
struct pwm_args pargs = { };
struct clk_init_data init;
struct clk_pwm *clk_pwm;
@@ -88,7 +103,12 @@ static int clk_pwm_probe(struct platform_device *pdev)
return -EINVAL;
}

- ret = pwm_config(pwm, (pargs.period + 1) >> 1, pargs.period);
+ pwm_get_state(pwm, &pstate);
+ pstate.period = pargs.period;
+ pstate.polarity = pargs.polarity;
+ pstate.duty_cycle = (pargs.period + 1) >> 1;
+
+ ret = pwm_apply_state(pwm, &pstate);
if (ret < 0)
return ret;

--
2.5.0