On Wed, 03 Mar 2021, Fabrice Gasnier wrote: > The ARR register is cleared unconditionally upon probing, after the maximum > value has been read. This initial condition is rather not intuitive, when > considering the counter child driver. It rather expects the maximum value > by default: > - The counter interface shows a zero value by default for 'ceiling' > attribute. > - Enabling the counter without any prior configuration makes it doesn't > count. > > The reset value of ARR register is the maximum. So Choice here > is to backup it, and restore it then, instead of clearing its value. > It also fixes the initial condition seen by the counter driver. > > Fixes: d0f949e220fd ("mfd: Add STM32 Timers driver") > > Signed-off-by: Fabrice Gasnier <fabrice.gasn...@foss.st.com> > --- > drivers/mfd/stm32-timers.c | 7 ++++++- > 1 file changed, 6 insertions(+), 1 deletion(-)
Applied, thanks. -- Lee Jones [李琼斯] Senior Technical Lead - Developer Services Linaro.org │ Open source software for Arm SoCs Follow Linaro: Facebook | Twitter | Blog