[coreboot-gerrit] Change in ...coreboot[master]: gale: add dev switch back as physical presence GPIO

[Patrick Georgi (Code Review)]

Patrick Georgi has submitted this change and it was merged. ( https://review.coreboot.org/c/coreboot/+/31993 )

Change subject: gale: add dev switch back as physical presence GPIO
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gale: add dev switch back as physical presence GPIO

gale has a button which is essentially used as a
"physical presence" button.  Its only use is to emulate
^D or ^U on boot when the button is pressed.
(See depthcharge src/board/gale/board.c)

Previously (and currently in CrOS firmware branch) this
GPIO was defined as the physical developer switch,
and read as such in depthcharge.  It was removed in
cleanup patch CB:18980.

Add the GPIO back as physical presence ("presence"),
which will be read by depthcharge in CL:1532492.

BUG=b:124141368, b:124192753, chromium:942901
TEST=util/lint/checkpatch.pl -g origin/master..HEAD
TEST=util/abuild/abuild -B -e -y -c 50 -p none -x
TEST=make clean && make test-abuild
BRANCH=none

Change-Id: Ic144f839b7f9933d573db8f84c4bf5905eea96f6
Signed-off-by: Joel Kitching 
Reviewed-on: https://review.coreboot.org/c/coreboot/+/31993
Tested-by: build bot (Jenkins) 
Reviewed-by: Julius Werner 
Reviewed-by: Simon Glass 
---
M src/mainboard/google/gale/chromeos.c
1 file changed, 3 insertions(+), 0 deletions(-)

Approvals:
  build bot (Jenkins): Verified
  Julius Werner: Looks good to me, approved
  Simon Glass: Looks good to me, but someone else must approve
  Joel Kitching: Looks good to me, but someone else must approve

diff --git a/src/mainboard/google/gale/chromeos.c b/src/mainboard/google/gale/chromeos.c
index 09fdc2f..66b1a62 100644
--- a/src/mainboard/google/gale/chromeos.c
+++ b/src/mainboard/google/gale/chromeos.c
@@ -24,6 +24,8 @@
 #include <timer.h>
 #include <vendorcode/google/chromeos/chromeos.h>

+#define PP_SW   41
+#define PP_POL  ACTIVE_LOW
 #define REC_POL ACTIVE_LOW
 #define WP_POL  ACTIVE_LOW

@@ -68,6 +70,7 @@
 void fill_lb_gpios(struct lb_gpios *gpios)
 {
    struct lb_gpio chromeos_gpios[] = {
+		{PP_SW, PP_POL, read_gpio(PP_SW), "presence"},
    	{get_rec_sw_gpio_pin(), REC_POL,
    		read_gpio(get_rec_sw_gpio_pin()), "recovery"},
    	{get_wp_status_gpio_pin(), WP_POL,