Marco Chen would like Marco Chen to review this change.

View Change

soc/intel/gpio: add support to the function - gpio_get_output().

BUG=b:137033609
BRANCH=octopus
TEST=build image and verify on the DUT to check returned value.

Change-Id: I85bfd66c32528dc1191dc8896322c5894f5cfc02
Signed-off-by: Marco Chen <marcochen@google.com>
---
M src/soc/intel/common/block/gpio/gpio.c
1 file changed, 12 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/90/34190/1

diff --git a/src/soc/intel/common/block/gpio/gpio.c b/src/soc/intel/common/block/gpio/gpio.c
index 7ebf05a..a53e16a 100644
--- a/src/soc/intel/common/block/gpio/gpio.c
+++ b/src/soc/intel/common/block/gpio/gpio.c
@@ -402,6 +402,18 @@
 	return !!(reg & PAD_CFG0_RX_STATE);
 }
 
+int gpio_get_output(gpio_t gpio_num)
+{
+	const struct pad_community *comm = gpio_get_community(gpio_num);
+	uint16_t config_offset;
+	uint32_t reg;
+
+	config_offset = pad_config_offset(comm, gpio_num);
+	reg = pcr_read32(comm->port, config_offset);
+
+	return !!(reg & PAD_CFG0_TX_STATE);
+}
+
 void gpio_set(gpio_t gpio_num, int value)
 {
 	const struct pad_community *comm = gpio_get_community(gpio_num);

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