[S] Change in coreboot[main]: drivers/usb/intel_bluetooth: Guard BTRK if no GPIO passed

[Sean Rhodes (Code Review)]

Sean Rhodes has submitted this change. ( https://review.coreboot.org/c/coreboot/+/86401?usp=email )

(

13 is the latest approved patch-set.
No files were changed between the latest approved patch-set and the submitted one.
 )Change subject: drivers/usb/intel_bluetooth: Guard BTRK if no GPIO passed
......................................................................

drivers/usb/intel_bluetooth: Guard BTRK if no GPIO passed

Don't attempt any GPIO operations of there isn't a reset
GPIO specified.

Change-Id: I9c97963e61f790f2d9c55d8ec1a384a5779782b4
Signed-off-by: Sean Rhodes 
Reviewed-on: https://review.coreboot.org/c/coreboot/+/86401
Reviewed-by: Matt DeVillier 
Tested-by: build bot (Jenkins) 
---
M src/drivers/usb/acpi/intel_bluetooth.c
1 file changed, 12 insertions(+), 10 deletions(-)

Approvals:
  Matt DeVillier: Looks good to me, approved
  build bot (Jenkins): Verified

diff --git a/src/drivers/usb/acpi/intel_bluetooth.c b/src/drivers/usb/acpi/intel_bluetooth.c
index 151930f..6307dcb 100644
--- a/src/drivers/usb/acpi/intel_bluetooth.c
+++ b/src/drivers/usb/acpi/intel_bluetooth.c
@@ -328,17 +328,19 @@
  */
    acpigen_write_method("BTRK", 1);
    {
-		acpigen_write_if_lequal_op_int(ARG0_OP, 1);
-		{
-			/* De-assert reset */
-			acpigen_disable_tx_gpio(reset_gpio);
+		if (reset_gpio->pin_count) {
+			acpigen_write_if_lequal_op_int(ARG0_OP, 1);
+			{
+				/* De-assert reset */
+				acpigen_disable_tx_gpio(reset_gpio);
+			}
+			acpigen_write_else();
+			{
+				/* Assert Reset */
+				acpigen_enable_tx_gpio(reset_gpio);
+			}
+			acpigen_pop_len();
    	}
-		acpigen_write_else();
-		{
-			/* Assert Reset */
-			acpigen_enable_tx_gpio(reset_gpio);
-		}
-		acpigen_pop_len();
    }
    acpigen_pop_len();