Re: [PATCH v2 19/26] drm/rockchip: dw-mipi-dsi: improve PLL configuration

2017-01-23 Thread Chris Zhong
On 01/23/2017 08:49 PM, John Keeping wrote: Hi Chris, On Mon, 23 Jan 2017 09:38:54 +0800, Chris Zhong wrote: On 01/22/2017 12:31 AM, John Keeping wrote: The multiplication ratio for the PLL is required to be even due to the use of a "by 2 pre-scaler". Currently we are likely to end up with

Re: [PATCH v2 19/26] drm/rockchip: dw-mipi-dsi: improve PLL configuration

2017-01-23 Thread John Keeping
Hi Chris, On Mon, 23 Jan 2017 09:38:54 +0800, Chris Zhong wrote: > On 01/22/2017 12:31 AM, John Keeping wrote: > > The multiplication ratio for the PLL is required to be even due to the > > use of a "by 2 pre-scaler". Currently we are likely to end up with an > > odd multiplier even though there

Re: [PATCH v2 19/26] drm/rockchip: dw-mipi-dsi: improve PLL configuration

2017-01-22 Thread Chris Zhong
Hi John On 01/22/2017 12:31 AM, John Keeping wrote: The multiplication ratio for the PLL is required to be even due to the use of a "by 2 pre-scaler". Currently we are likely to end up with an odd multiplier even though there is an equivalent set of parameters with an even multiplier. For exam