Hello,

On Thu, Aug 06, 2020 at 08:33:05AM -0700, Guenter Roeck wrote:
> Since commit c5cd2b47b203 ("platform/chrome: cros_ec_proto: Report command
> not supported") we can no longer assume that cros_ec_cmd_xfer_status()
> reports -EPROTO for all errors returned by the EC itself. A follow-up
> patch will change cros_ec_cmd_xfer_status() to report additional errors
> reported by the EC as distinguished Linux error codes.
> 
> Handle this change by no longer assuming that only -EPROTO is used
> to report all errors returned by the EC itself. Instead, support both
> the old and the new error codes.
> 
> Add a comment describing cros_ec_num_pwms() to explain its functionality.
> 
> Cc: Gwendal Grignou <gwendal@chromium.org>
> Cc: Yu-Hsuan Hsu <yuhsuan@chromium.org>
> Cc: Prashant Malani <pmalani@chromium.org>
> Cc: Brian Norris <briannorris@chromium.org>
> Acked-by: Thierry Reding <thierry.reding@gmail.com>
> Signed-off-by: Guenter Roeck <linux@roeck-us.net>

Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

Best regards
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | https://www.pengutronix.de/ |