mirrors
/
linux-stable
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
1
0
Fork 0
Code Issues Releases Wiki Activity

pinctrl: amd: Add fields for interrupt status and wake status 

If the firmware has misconfigured a GPIO it may cause interrupt
status or wake status bits to be set and not asserted. Add these
to debug output to catch this case.

Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://lore.kernel.org/r/20230328174231.8924-3-mario.limonciello@amd.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Mario Limonciello 2023-03-28 12:42:31 -05:00 committed by Linus Walleij
parent 75358cf331
commit 010f493d90
1 changed files with 17 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
drivers/pinctrl/pinctrl-amd.c
View File

@ -211,6 +211,8 @@ static void amd_gpio_dbg_show(struct seq_file *s, struct gpio_chip *gc)
char *wake_cntrl1;
char *wake_cntrl2;
char *pin_sts;
char *interrupt_sts;
char *wake_sts;
char *pull_up_sel;
char *orientation;
char debounce_value[40];
@ -243,7 +245,7 @@ static void amd_gpio_dbg_show(struct seq_file *s, struct gpio_chip *gc)
continue;
}
seq_printf(s, "GPIO bank%d\n", bank);
seq_puts(s, "gpio\tint|active|trigger|S0i3| S3|S4/S5| Z|wake|pull| orient| debounce|reg\n");
seq_puts(s, "gpio\t int|active|trigger|S0i3| S3|S4/S5| Z|wake|pull| orient| debounce|reg\n");
for (; i < pin_num; i++) {
seq_printf(s, "#%d\t", i);
raw_spin_lock_irqsave(&gpio_dev->lock, flags);
@ -274,12 +276,18 @@ static void amd_gpio_dbg_show(struct seq_file *s, struct gpio_chip *gc)
else
interrupt_mask = "😷";
seq_printf(s, "%s| %s| %s|",
if (pin_reg & BIT(INTERRUPT_STS_OFF))
interrupt_sts = "🔥";
else
interrupt_sts = " ";
seq_printf(s, "%s %s| %s| %s|",
interrupt_sts,
interrupt_mask,
active_level,
level_trig);
} else
seq_puts(s, " ∅| | |");
seq_puts(s, " ∅| | |");
if (pin_reg & BIT(WAKE_CNTRL_OFF_S0I3))
wake_cntrl0 = "⏰";
@ -305,6 +313,12 @@ static void amd_gpio_dbg_show(struct seq_file *s, struct gpio_chip *gc)
wake_cntrlz = " ";
seq_printf(s, "%s|", wake_cntrlz);
if (pin_reg & BIT(WAKE_STS_OFF))
wake_sts = "🔥";
else
wake_sts = " ";
seq_printf(s, " %s|", wake_sts);
if (pin_reg & BIT(PULL_UP_ENABLE_OFF)) {
if (pin_reg & BIT(PULL_UP_SEL_OFF))
pull_up_sel = "8k";