Hi Shawn, On 05/23/2014 01:48 PM, Shawn Guo wrote: > The .config() hook of imx_pwm_data_v2 calls clk_get_rate() which might > sleep, so we need to set can_sleep flag on it. > > Signed-off-by: Shawn Guo <[email protected]> > --- > drivers/pwm/pwm-imx.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/drivers/pwm/pwm-imx.c b/drivers/pwm/pwm-imx.c > index d797c7b84c3f..ab3809fb36a7 100644 > --- a/drivers/pwm/pwm-imx.c > +++ b/drivers/pwm/pwm-imx.c > @@ -272,6 +272,9 @@ static int imx_pwm_probe(struct platform_device *pdev) > imx->config = data->config; > imx->set_enable = data->set_enable; > > + if (data == &imx_pwm_data_v2) > + imx->chip.can_sleep = true; > + > ret = pwmchip_add(&imx->chip); > if (ret < 0) > return ret; >
clk_prepare_enable()/clk_disable_unprepare() called in imx_pwm_config() may sleep. So, the can_sleep flag should be true for both i.MX PWM v1 and v2, right? -- Liu Ying -- To unsubscribe from this list: send the line "unsubscribe linux-pwm" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
