Re: [PATCH] fbdev/omap: fix max fclk divider for omap36xx

2019-10-21 Thread Adam Ford
On Mon, Oct 21, 2019 at 3:44 AM Tomi Valkeinen wrote: > > On 18/10/2019 16:05, Adam Ford wrote: > > The OMAP36xx and AM/DM37x TRMs say that the maximum divider for DSS fclk > > (in CM_CLKSEL_DSS) is 32. Experimentation shows that this is not > > correct, and using divider of 32 breaks DSS with a f

Re: [PATCH] fbdev/omap: fix max fclk divider for omap36xx

2019-10-21 Thread Tomi Valkeinen
On 18/10/2019 16:05, Adam Ford wrote: The OMAP36xx and AM/DM37x TRMs say that the maximum divider for DSS fclk (in CM_CLKSEL_DSS) is 32. Experimentation shows that this is not correct, and using divider of 32 breaks DSS with a flood or underflows and sync losts. Dividers up to 31 seem to work fin

Re: [PATCH] fbdev/omap: fix max fclk divider for omap36xx

2019-10-21 Thread Tomi Valkeinen
On 18/10/2019 15:49, Adam Ford wrote: The OMAP36xx and AM/DM37x TRMs say that the maximum divider for DSS fclk (in CM_CLKSEL_DSS) is 32. Experimentation shows that this is not correct, and using divider of 32 breaks DSS with a flood or underflows and sync losts. Dividers up to 31 seem to work fin