[PATCH v1 1/2] ARM: dts: aspeed: santabarbara: Add swb IO expander and gpio line names

[Fred Chen]

Add IO expander emulated by the switch board CPLD to handle UART and SPI
mux control signals. Also add SGPIO labels with FM_MODULE_PWR_EN_N_*
signals, which control power to each ASIC module individually.

Signed-off-by: Fred Chen <fredchen.openbmc at gmail.com>
---
 .../aspeed-bmc-facebook-santabarbara.dts      | 22 +++++++++++++++----
 1 file changed, 18 insertions(+), 4 deletions(-)

diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-santabarbara.dts b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-santabarbara.dts
index f74f463cc878..4312ead311df 100644
--- a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-santabarbara.dts
+++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-santabarbara.dts
@@ -1328,6 +1328,20 @@ eeprom at 50 {
 &i2c12 {
 	status = "okay";
 
+	gpio at 27 {
+		compatible = "nxp,pca9555";
+		reg = <0x27>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		gpio-line-names =
+			"PEX0_MODE_SEL1_R","PEX0_MODE_SEL2_R",
+			"PEX0_MODE_SEL3_R","PEX0_MODE_SEL4_R",
+			"","","","",
+			"UART_MUX_SEL","RST_SMB_NIC_R_N",
+			"RST_SMB_N","RST_CP2102N_N",
+			"SPI_MUX_SEL","","","";
+	};
+
 	// SWB FRU
 	eeprom at 52 {
 		compatible = "atmel,24c64";
@@ -1758,11 +1772,11 @@ &sgpiom0 {
 	"","BIOS_DEBUG_MODE",
 	/*H0-H3 line 112-119*/
 	"FM_IOEXP_U538_INT_N","",
-	"FM_IOEXP_U539_INT_N","",
-	"FM_IOEXP_U540_INT_N","",
-	"FM_IOEXP_U541_INT_N","",
+	"FM_IOEXP_U539_INT_N","FM_MODULE_PWR_EN_N_1B",
+	"FM_IOEXP_U540_INT_N","FM_MODULE_PWR_EN_N_2B",
+	"FM_IOEXP_U541_INT_N","FM_MODULE_PWR_EN_N_3B",
 	/*H4-H7 line 120-127*/
-	"FM_IOEXP_PDB2_U1003_INT_N","",
+	"FM_IOEXP_PDB2_U1003_INT_N","FM_MODULE_PWR_EN_N_4B",
 	"","",
 	"","",
 	"FM_MAIN_PWREN_RMC_EN_ISO_R","",
-- 
2.49.0