spmi: msm: introduce SPMI_CHANNEL_VALID flag

Introduce the SPMI_CHANNEL_VALID flag so we can check if
a mapping exists for a SPMI command.

Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Tested-by: caleb.connolly@linaro.org # sdm845
Link: https://lore.kernel.org/r/20250328-topic-sm8x50-spmi-fix-v1-3-a7548d3aef0d@linaro.org
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
1 file changed