On Tue, Mar 18, 2025 at 04:52:56PM +0100, Wolfram Sang wrote: > Read out and check the ID registers, so we can bail out if I2C > communication does not work or if the device is unknown. Tested on a > Renesas GrayHawk board (R-Car V4M) by using a wrong I2C address and by > not enabling RuntimePM for the device. > > Signed-off-by: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx> > --- > > Changes since v2: > * switched to a new approach suggested by Doug (Thanks!). We add a > dedicated read instead of using the first read. This prevents creating > the aux devices. As a side-gain, we check now if the chip at the address > is really the one we want to support. Forgot to mention that it depends on my previous patch "[PATCH v2] drm/bridge: ti-sn65dsi86: make use of debugfs_init callback"
Attachment:
signature.asc
Description: PGP signature
