On Mon, May 31, 2021 at 6:33 PM Sander Vanheule [off-list ref] wrote:

On Mon, 2021-05-31 at 14:16 +0300, Andy Shevchenko wrote:

quoted

On Monday, May 31, 2021, Michael Walle [off-list ref] wrote:

quoted

Am 2021-05-31 10:36, schrieb Sander Vanheule:

Am I missing something here? It seems to me like the regmap interface can't
really accommodate what's required, unless maybe the rtl8231 regmap users
perform some manual locking. This all seems terribly complicated compared to
using an internal output-value cache inside regmap-gpio.

Have you had a chance to look into the PCA953x driver?
Sounds to me that you are missing the APIs that regmap provides.

-- 
With Best Regards,
Andy Shevchenko