Re: [PATCH] drm: fsl-dcu: enable PIXCLK on LS1021A

2020-09-18 Thread Matthias Schiffer
On Fri, 2020-08-21 at 15:41 +0200, Stefan Agner wrote: > Hi Matthias, > > On 2020-08-20 12:58, Matthias Schiffer wrote: > > The PIXCLK needs to be enabled in SCFG before accessing the DCU on LS1021A, > > or the access will hang. > > Hm, this seems a rather ad-hoc access to SCFG from the DCU. We d

Re: [PATCH] drm: fsl-dcu: enable PIXCLK on LS1021A

2020-08-21 Thread Stefan Agner
Hi Matthias, On 2020-08-20 12:58, Matthias Schiffer wrote: > The PIXCLK needs to be enabled in SCFG before accessing the DCU on LS1021A, > or the access will hang. Hm, this seems a rather ad-hoc access to SCFG from the DCU. We do support a pixel clock in the device tree bindings of fsl-dcu, so id

[PATCH] drm: fsl-dcu: enable PIXCLK on LS1021A

2020-08-20 Thread Matthias Schiffer
The PIXCLK needs to be enabled in SCFG before accessing the DCU on LS1021A, or the access will hang. Signed-off-by: Matthias Schiffer --- drivers/gpu/drm/fsl-dcu/Kconfig | 1 + drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c | 25 +++ drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_