Change in coreboot[master]: soc/intel/tigerlake: Add method to look up GPIO com ID for an index

[Duncan Laurie (Code Review)]

Duncan Laurie has submitted this change. ( https://review.coreboot.org/c/coreboot/+/40478 )

Change subject: soc/intel/tigerlake: Add method to look up GPIO com ID for an index
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soc/intel/tigerlake: Add method to look up GPIO com ID for an index

This patch adds GPID, a helper method to look up GPIO community ID for
an index.

This patch also includes Intel's common GPIO ASL code. CGPM method in
the common code uses the GPID method introduced in this patch.

BUG=b:148892882
BRANCH=none
TEST="BUILD volteer and ripto"

Signed-off-by: Venkata Krishna Nimmagadda 
Change-Id: Id6a00fb8adef0285d6bbc35cd5a44539bd3be6b8
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40478
Reviewed-by: Venkata Krishna Nimmagadda 
Reviewed-by: Tim Wawrzynczak 
Tested-by: build bot (Jenkins) 
---
M src/soc/intel/tigerlake/acpi/gpio.asl
1 file changed, 33 insertions(+), 0 deletions(-)

Approvals:
  build bot (Jenkins): Verified
  Tim Wawrzynczak: Looks good to me, approved
  Venkata Krishna Nimmagadda: Looks good to me, but someone else must approve

diff --git a/src/soc/intel/tigerlake/acpi/gpio.asl b/src/soc/intel/tigerlake/acpi/gpio.asl
index 2b4aff0..9b8a175 100644
--- a/src/soc/intel/tigerlake/acpi/gpio.asl
+++ b/src/soc/intel/tigerlake/acpi/gpio.asl
@@ -4,6 +4,7 @@
 #include <soc/irq.h>
 #include <soc/pcr_ids.h>
 #include <intelblocks/gpio.h>
+#include <soc/intel/common/acpi/gpio.asl>
 #include "gpio_op.asl"

Device (GCM0)
@@ -142,3 +143,35 @@
    Local2 = PCRB(Local0) + PAD_CFG_BASE + (Local1 * 16)
    Return (Local2)
 }
+
+/*
+ * Return PCR Port ID of GPIO Communities
+ *
+ * Arg0: GPIO Community (0-5)
+ */
+Method (GPID, 1, Serialized)
+{
+	Switch (ToInteger (Arg0))
+	{
+		Case (0) {
+			Local0 = PID_GPIOCOM0
+		}
+		Case (1) {
+			Local0 = PID_GPIOCOM1
+		}
+		Case (2) {
+			Local0 = PID_GPIOCOM2
+		}
+		Case (4) {
+			Local0 = PID_GPIOCOM4
+		}
+		Case (5) {
+			Local0 = PID_GPIOCOM5
+		}
+		Default {
+			Return (0)
+		}
+	}
+
+	Return (Local0)
+}