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authorBasavaraj Natikar <Basavaraj.Natikar@amd.com>2022-12-08 12:37:04 +0300
committerLinus Walleij <linus.walleij@linaro.org>2022-12-29 03:59:41 +0300
commitdf72b4a692b60d3e5d99d9ef662b2d03c44bb9c0 (patch)
treeccc5dbb3c719c5628c03183ed23b3976cf9ffbf0
parent1b929c02afd37871d5afb9d498426f83432e71c2 (diff)
downloadlinux-df72b4a692b60d3e5d99d9ef662b2d03c44bb9c0.tar.xz
pinctrl: amd: Add Z-state wake control bits
GPIO registers include Bit 27 for WakeCntrlZ used to enable wake in Z state. Hence add Z-state wake control bits to debugfs output to debug and analyze Z-states problems. Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com> Suggested-by: Mario Limonciello <mario.limonciello@amd.com> Tested-by: Guruvendra Punugupati <Guruvendra.Punugupati@amd.com> Link: https://lore.kernel.org/r/20221208093704.1151928-1-Basavaraj.Natikar@amd.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
-rw-r--r--drivers/pinctrl/pinctrl-amd.c7
-rw-r--r--drivers/pinctrl/pinctrl-amd.h1
2 files changed, 8 insertions, 0 deletions
diff --git a/drivers/pinctrl/pinctrl-amd.c b/drivers/pinctrl/pinctrl-amd.c
index 9bc6e3922e78..ce3893dc85e6 100644
--- a/drivers/pinctrl/pinctrl-amd.c
+++ b/drivers/pinctrl/pinctrl-amd.c
@@ -218,6 +218,7 @@ static void amd_gpio_dbg_show(struct seq_file *s, struct gpio_chip *gc)
char *orientation;
char debounce_value[40];
char *debounce_enable;
+ char *wake_cntrlz;
for (bank = 0; bank < gpio_dev->hwbank_num; bank++) {
unsigned int time = 0;
@@ -305,6 +306,12 @@ static void amd_gpio_dbg_show(struct seq_file *s, struct gpio_chip *gc)
wake_cntrl2 = " ∅";
seq_printf(s, "S4/S5 %s| ", wake_cntrl2);
+ if (pin_reg & BIT(WAKECNTRL_Z_OFF))
+ wake_cntrlz = "⏰";
+ else
+ wake_cntrlz = " ∅";
+ seq_printf(s, "Z %s| ", wake_cntrlz);
+
if (pin_reg & BIT(PULL_UP_ENABLE_OFF)) {
pull_up_enable = "+";
if (pin_reg & BIT(PULL_UP_SEL_OFF))
diff --git a/drivers/pinctrl/pinctrl-amd.h b/drivers/pinctrl/pinctrl-amd.h
index c8635998465d..81ae8319a1f0 100644
--- a/drivers/pinctrl/pinctrl-amd.h
+++ b/drivers/pinctrl/pinctrl-amd.h
@@ -42,6 +42,7 @@
#define OUTPUT_ENABLE_OFF 23
#define SW_CNTRL_IN_OFF 24
#define SW_CNTRL_EN_OFF 25
+#define WAKECNTRL_Z_OFF 27
#define INTERRUPT_STS_OFF 28
#define WAKE_STS_OFF 29