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X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, Jan 21, 2026 at 07:13:46PM +0800, Sherry Sun wrote: >For i.MX93 11x11 EVK and 9x9 QSB boards, add the gpio-hog to enable the >M.2 PCM pins level shifter connected between soc sai1 interface and M.2 >PCM pins so that HFP feature can be supported. > >Since the HFP is only used at a later stage — after the BT firmware has >been downloaded and the BT connection with the remote device has been >established — both the pcal6524 expander and sai1 interface are already >fully initialized and available by that time. Therefore, using a >gpio-hog here will not introduce any probe ordering or dependency issues >for the HFP use case. > >Signed-off-by: Sherry Sun Reviewed-by: Peng Fan