From: Mario Limonciello mario.limonciello@amd.com
commit 010f493d90ee1dbc32fa1ce51398f20d494c20c2 upstream.
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 Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/pinctrl/pinctrl-amd.c | 20 +++++++++++++++++--- 1 file changed, 17 insertions(+), 3 deletions(-)
--- a/drivers/pinctrl/pinctrl-amd.c +++ b/drivers/pinctrl/pinctrl-amd.c @@ -211,6 +211,8 @@ static void amd_gpio_dbg_show(struct seq 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 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 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 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";