[PATCH v5 7/8] ARM: dts: aspeed: yosemite5: Add debug card bypass GPIO

[Kevin Tung]

On Yv5, the SCM CPLD bypass OCP debug card commands to the BMC.
These commands share the same I2C bus used by the BMC to access the
SCM CPLD for firmware updates, which can cause bus conflicts.

To avoid this, the SCM CPLD provides a bypass control GPIO connected
to GPIOO7. When asserted by the BMC, this GPIO isolates debug card
commands and prevents conflicts during SCM CPLD access.

Add the DEBUG_CARD_BYPASS GPIO to support this behavior.

Signed-off-by: Kevin Tung <kevin.tung.openbmc@xxxxxxxxx>
---
 arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite5.dts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite5.dts b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite5.dts
index 30fb41fdaeb7a2276cdfe98654696a16cf1de5fc..f590ec6e00c48afe4ade1fb98011780ac0570e7c 100644
--- a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite5.dts
+++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite5.dts
@@ -166,7 +166,8 @@ &gpio0 {
 			"led-postcode-3","led-postcode-4","led-postcode-5",
 			"led-postcode-6","led-postcode-7",
 	/*O0-O7*/	"RUN_POWER_PG","PWR_BRAKE","CHASSIS_AC_LOSS","BSM_PRSNT_N",
-			"PSU_SMB_ALERT","FM_TPM_PRSNT_0_N","PSU_FW_UPDATING_N","",
+			"PSU_SMB_ALERT","FM_TPM_PRSNT_0_N",
+			"PSU_FW_UPDATING_N","DEBUG_CARD_BYPASS",
 	/*P0-P7*/	"PWR_BTN_BMC_N","IPEX_CABLE_PRSNT","ID_RST_BTN_BMC_N",
 			"RST_BMC_RSTBTN_OUT_N","BMC_PWR_LED","RUN_POWER_EN","SHDN_FORCE","",
 	/*Q0-Q7*/	"IRQ_PCH_TPM_SPI_LV3_N","USB_OC0_REAR_N","UART_MUX_SEL",

-- 
2.53.0