On 28/08/2023 20:40, Laurent Pinchart wrote:
On Mon, Aug 28, 2023 at 08:37:44PM +0100, Bryan O'Donoghue wrote:
On 28/08/2023 19:47, Laurent Pinchart wrote:
Hi Bryan,
Thank you for the patch.
On Wed, Aug 23, 2023 at 11:44:36AM +0100, Bryan O'Donoghue wrote:
From sdm845 onwards we need to ensure the VFE is powered on prior to
switching on the CSID.
Based on the discussions with Konrad in the mail thread, I would record
here the reason for this requirement.
What happens if you unconditionally power up the VFE prior to switching
the CSID on ? Will this break something on platforms older than SDM845 ?
vfe->power_count will bump and you will be fine.
Then maybe that would be a simpler solution than having a
device-specific power sequence ?
So, this works.
I'll send out a patch based on this suggestion.
---
bod
