Re: [PATCH v4 62/78] drm/vc4: hdmi: Adjust HSM clock rate depending on pixel rate

2020-09-01 Thread Chanwoo Choi
Hi Maxime, On 9/1/20 6:45 PM, Maxime Ripard wrote: > Hi Chanwoo, > > On Tue, Sep 01, 2020 at 01:36:17PM +0900, Chanwoo Choi wrote: >> On 7/9/20 2:42 AM, Maxime Ripard wrote: >>> The HSM clock needs to be setup at around 101% of the pixel rate. This >>> was done previously by setting the clock

Re: [PATCH v4 62/78] drm/vc4: hdmi: Adjust HSM clock rate depending on pixel rate

2020-09-01 Thread Maxime Ripard
Hi Chanwoo, On Tue, Sep 01, 2020 at 01:36:17PM +0900, Chanwoo Choi wrote: > On 7/9/20 2:42 AM, Maxime Ripard wrote: > > The HSM clock needs to be setup at around 101% of the pixel rate. This > > was done previously by setting the clock rate to 163.7MHz at probe time and > > only check in

Re: [PATCH v4 62/78] drm/vc4: hdmi: Adjust HSM clock rate depending on pixel rate

2020-08-31 Thread Chanwoo Choi
Hi Maxime, On 7/9/20 2:42 AM, Maxime Ripard wrote: > The HSM clock needs to be setup at around 101% of the pixel rate. This > was done previously by setting the clock rate to 163.7MHz at probe time and > only check in mode_valid whether the mode pixel clock was under the pixel > clock +1% or not.

Re: [PATCH v4 62/78] drm/vc4: hdmi: Adjust HSM clock rate depending on pixel rate

2020-07-28 Thread Dave Stevenson
Hi Maxime On Wed, 8 Jul 2020 at 18:44, Maxime Ripard wrote: > > The HSM clock needs to be setup at around 101% of the pixel rate. This > was done previously by setting the clock rate to 163.7MHz at probe time and > only check in mode_valid whether the mode pixel clock was under the pixel > clock

[PATCH v4 62/78] drm/vc4: hdmi: Adjust HSM clock rate depending on pixel rate

2020-07-08 Thread Maxime Ripard
The HSM clock needs to be setup at around 101% of the pixel rate. This was done previously by setting the clock rate to 163.7MHz at probe time and only check in mode_valid whether the mode pixel clock was under the pixel clock +1% or not. However, with 4k we need to change that frequency to a