On 9/22/2020 2:57 AM, Douglas Anderson wrote:
As talked about in the patch ("arm64: dts: qcom: sc7180: Provide pinconf for SPI to use GPIO for CS"), on some boards it makes much more sense (and is much more efficient) to think of the SPI Chip Select as a GPIO. Trogdor is one such board where the SPI parts don't run in GSI mode and we do a lot of SPI traffic. Signed-off-by: Douglas Anderson <dianders@xxxxxxxxxxxx> Reviewed-by: Stephen Boyd <swboyd@xxxxxxxxxxxx>
Reviewed-by: Akash Asthana <akashast@xxxxxxxxxxxxxx> -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,\na Linux Foundation Collaborative Project