Re: [PATCH v2] drm/dbi: Print errors for mipi_dbi_command()

On Fri, Jul 02, 2021 at 12:04:55PM +0200, Linus Walleij wrote:

The macro mipi_dbi_command() does not report errors unless you wrap it in another macro to do the error reporting.

Report a rate-limited error so we know what is going on.

Drop the only user in DRM using mipi_dbi_command() and actually checking the error explicitly, let it use mipi_dbi_command_buf() directly instead.

After this any code wishing to send command arrays can rely on mipi_dbi_command() providing an appropriate error message if something goes wrong.

Suggested-by: Noralf Trønnes noralf@tronnes.org Suggested-by: Douglas Anderson dianders@chromium.org Signed-off-by: Linus Walleij linus.walleij@linaro.org

Signed-off-by: Sam Ravnborg sam@ravnborg.org