mirror of
https://github.com/torvalds/linux
synced 2024-10-15 07:47:34 +00:00
bus: ts-nbus: Convert to atomic pwm API
With this change the PWM hardware is only configured once (instead of three times). Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
parent
f0379bd1c7
commit
8129d25e32
|
@ -273,7 +273,7 @@ EXPORT_SYMBOL_GPL(ts_nbus_write);
|
|||
static int ts_nbus_probe(struct platform_device *pdev)
|
||||
{
|
||||
struct pwm_device *pwm;
|
||||
struct pwm_args pargs;
|
||||
struct pwm_state state;
|
||||
struct device *dev = &pdev->dev;
|
||||
struct ts_nbus *ts_nbus;
|
||||
int ret;
|
||||
|
@ -296,25 +296,22 @@ static int ts_nbus_probe(struct platform_device *pdev)
|
|||
return ret;
|
||||
}
|
||||
|
||||
pwm_get_args(pwm, &pargs);
|
||||
if (!pargs.period) {
|
||||
pwm_init_state(pwm, &state);
|
||||
if (!state.period) {
|
||||
dev_err(&pdev->dev, "invalid PWM period\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
/*
|
||||
* FIXME: pwm_apply_args() should be removed when switching to
|
||||
* the atomic PWM API.
|
||||
*/
|
||||
pwm_apply_args(pwm);
|
||||
ret = pwm_config(pwm, pargs.period, pargs.period);
|
||||
state.duty_cycle = state.period;
|
||||
state.enabled = true;
|
||||
|
||||
ret = pwm_apply_state(pwm, &state);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
/*
|
||||
* we can now start the FPGA and populate the peripherals.
|
||||
*/
|
||||
pwm_enable(pwm);
|
||||
ts_nbus->pwm = pwm;
|
||||
|
||||
/*
|
||||
|
|
Loading…
Reference in a new issue