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pinctrl: amd: Add Z-state wake control bits

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commit df72b4a692b60d3e5d99d9ef662b2d03c44bb9c0 upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Basavaraj Natikar 2022-12-08 15:07:04 +05:30 committed by Greg Kroah-Hartman
parent a996fec74c
commit 03590f9be9
2 changed files with 8 additions and 0 deletions
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7
drivers/pinctrl/pinctrl-amd.c
View File

@ -218,6 +218,7 @@ static void amd_gpio_dbg_show(struct seq_file *s, struct gpio_chip *gc)
char *orientation; char *orientation;
char debounce_value[40]; char debounce_value[40];
char *debounce_enable; char *debounce_enable;
char *wake_cntrlz;
for (bank = 0; bank < gpio_dev->hwbank_num; bank++) { for (bank = 0; bank < gpio_dev->hwbank_num; bank++) {
unsigned int time = 0; unsigned int time = 0;
@ -305,6 +306,12 @@ static void amd_gpio_dbg_show(struct seq_file *s, struct gpio_chip *gc)
wake_cntrl2 = " ∅"; wake_cntrl2 = " ∅";
seq_printf(s, "S4/S5 %s| ", 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)) { if (pin_reg & BIT(PULL_UP_ENABLE_OFF)) {
pull_up_enable = "+"; pull_up_enable = "+";
if (pin_reg & BIT(PULL_UP_SEL_OFF)) if (pin_reg & BIT(PULL_UP_SEL_OFF))

1
drivers/pinctrl/pinctrl-amd.h
View File

@ -42,6 +42,7 @@
#define OUTPUT_ENABLE_OFF 23 #define OUTPUT_ENABLE_OFF 23
#define SW_CNTRL_IN_OFF 24 #define SW_CNTRL_IN_OFF 24
#define SW_CNTRL_EN_OFF 25 #define SW_CNTRL_EN_OFF 25
#define WAKECNTRL_Z_OFF 27
#define INTERRUPT_STS_OFF 28 #define INTERRUPT_STS_OFF 28
#define WAKE_STS_OFF 29 #define WAKE_STS_OFF 29