Re: [PATCH v2] pwm: stm32-lp: add check in case requested period cannot be achieved

2019-09-18 Thread Uwe Kleine-König
On Wed, Sep 18, 2019 at 04:54:21PM +0200, Fabrice Gasnier wrote: > LPTimer can use a 32KHz clock for counting. It depends on clock tree > configuration. In such a case, PWM output frequency range is limited. > Although unlikely, nothing prevents user from requesting a PWM frequency > above

[PATCH v2] pwm: stm32-lp: add check in case requested period cannot be achieved

2019-09-18 Thread Fabrice Gasnier
LPTimer can use a 32KHz clock for counting. It depends on clock tree configuration. In such a case, PWM output frequency range is limited. Although unlikely, nothing prevents user from requesting a PWM frequency above counting clock (32KHz for instance): - This causes (prd - 1) = 0x to be