Change in coreboot[master]: soc/amd/common/block/gpio_banks: add comment about acpimmio_* symbols

[Felix Held (Code Review)]

Attention is currently required from: Jason Glenesk, Raul Rangel, Marshall Dawson.
Felix Held has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/56831 )

Change subject: soc/amd/common/block/gpio_banks: add comment about acpimmio_* symbols
......................................................................

soc/amd/common/block/gpio_banks: add comment about acpimmio_* symbols

Suggested-by: Martin Roth 
Signed-off-by: Felix Held 
Change-Id: I0016a6c7d6581cb261cab6178268c1a86b89c839
---
M src/soc/amd/common/block/gpio_banks/gpio.c
1 file changed, 6 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/31/56831/1

diff --git a/src/soc/amd/common/block/gpio_banks/gpio.c b/src/soc/amd/common/block/gpio_banks/gpio.c
index 22c030d..eb38ec1 100644
--- a/src/soc/amd/common/block/gpio_banks/gpio.c
+++ b/src/soc/amd/common/block/gpio_banks/gpio.c
@@ -15,6 +15,12 @@
 #include <assert.h>
 #include <string.h>

+/*
+ * acpimmio_gpio0, acpimmio_remote_gpio and acpimmio_iomux are defined in
+ * soc/amd/common/block/acpimmio/mmio_util.c and declared as extern variables/constants in
+ * amdblocks/acpimmio.h which is included in this file.
+ */
+
 /* MMIO access of new-style GPIO bank configuration registers */
 static inline void *gpio_ctrl_ptr(gpio_t gpio_num)
 {