The pca9551 compatible LED drivers are under the pca9546 mux on Rainier pass > 1. On pass 1, they are directly connected to the aspeed i2c. Signed-off-by: Santosh Puranik <santosh.puranik@in.ibm.com> Signed-off-by: Joel Stanley <joel@jms.id.au> Link: https://lore.kernel.org/r/20221102223554.1738642-1-joel@jms.id.au