[PATCH v1 3/3] pinctrl: baytrail: Add debounce to debug output

[Andy Shevchenko <andriy.shevchenko@linux.intel.com>]

When debug pin configuration is printed out debounce setting is missed.
Add it here.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/pinctrl/intel/pinctrl-baytrail.c | 46 ++++++++++++++++++++++++++++++--
 1 file changed, 44 insertions(+), 2 deletions(-)

diff --git a/drivers/pinctrl/intel/pinctrl-baytrail.c b/drivers/pinctrl/intel/pinctrl-baytrail.c
index a1f85a79f186..6bdb6e5879f8 100644
--- a/drivers/pinctrl/intel/pinctrl-baytrail.c
+++ b/drivers/pinctrl/intel/pinctrl-baytrail.c
@@ -1391,11 +1391,12 @@ static int byt_gpio_direction_output(struct gpio_chip *chip,
 static void byt_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip)
 {
 	struct byt_gpio *vg = gpiochip_get_data(chip);
+	u32 conf0, debounce, val;
 	int i;
-	u32 conf0, val;
 
 	for (i = 0; i < vg->soc_data->npins; i++) {
 		const struct byt_community *comm;
+		const char *db_str = NULL;
 		const char *pull_str = NULL;
 		const char *pull = NULL;
 		void __iomem *reg;
@@ -1415,6 +1416,16 @@ static void byt_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip)
 		}
 		conf0 = readl(reg);
 
+		reg = byt_gpio_reg(vg, pin, BYT_DEBOUNCE_REG);
+		if (!reg) {
+			seq_printf(s,
+				   "Could not retrieve pin %i debounce reg\n",
+				   pin);
+			raw_spin_unlock_irqrestore(&vg->lock, flags);
+			continue;
+		}
+		debounce = readl(reg);
+
 		reg = byt_gpio_reg(vg, pin, BYT_VAL_REG);
 		if (!reg) {
 			seq_printf(s,
@@ -1459,6 +1470,32 @@ static void byt_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip)
 			break;
 		}
 
+		if (conf0 & BYT_DEBOUNCE_EN) {
+			switch (debounce & BYT_DEBOUNCE_PULSE_MASK) {
+			case BYT_DEBOUNCE_PULSE_375US:
+				db_str = "375us";
+				break;
+			case BYT_DEBOUNCE_PULSE_750US:
+				db_str = "750us";
+				break;
+			case BYT_DEBOUNCE_PULSE_1500US:
+				db_str = "1500us";
+				break;
+			case BYT_DEBOUNCE_PULSE_3MS:
+				db_str = "3ms";
+				break;
+			case BYT_DEBOUNCE_PULSE_6MS:
+				db_str = "6ms";
+				break;
+			case BYT_DEBOUNCE_PULSE_12MS:
+				db_str = "12ms";
+				break;
+			case BYT_DEBOUNCE_PULSE_24MS:
+				db_str = "24ms";
+				break;
+			}
+		}
+
 		seq_printf(s,
 			   " gpio-%-3d (%-20.20s) %s %s %s pad-%-3d offset:0x%03x mux:%d %s%s%s",
 			   pin,
@@ -1475,7 +1512,12 @@ static void byt_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip)
 		if (pull && pull_str)
 			seq_printf(s, " %-4s %-3s", pull, pull_str);
 		else
-			seq_puts(s, "          ");
+			seq_puts(s, "         ");
+
+		if (db_str)
+			seq_printf(s, " %-6s", db_str);
+		else
+			seq_puts(s, "        ");
 
 		if (conf0 & BYT_IODEN)
 			seq_puts(s, " open-drain");
-- 
2.11.0