ASoC: ts3a227e: add parameters to control debounce times

Add devicetree parameters to control the insert, release and press
debounce times.

Signed-off-by: Astrid Rost <astrid.rost@axis.com>
Link: https://lore.kernel.org/r/20220921081834.22009-4-astrid.rost@axis.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/codecs/ts3a227e.c b/sound/soc/codecs/ts3a227e.c
index d8ab081..2305a47 100644 (file)
--- a/sound/soc/codecs/ts3a227e.c
+++ b/sound/soc/codecs/ts3a227e.c
@@ -78,12 +78,20 @@ static const int ts3a227e_buttons[] = {
 #define ADC_COMPLETE_INT_DISABLE 0x04
 #define INTB_DISABLE 0x08
 
+/* TS3A227E_REG_SETTING_1 0x4 */
+#define DEBOUNCE_INSERTION_SETTING_SFT (0)
+#define DEBOUNCE_INSERTION_SETTING_MASK (0x7 << DEBOUNCE_PRESS_SETTING_SFT)
+
 /* TS3A227E_REG_SETTING_2 0x05 */
 #define KP_ENABLE 0x04
 
 /* TS3A227E_REG_SETTING_3 0x06 */
-#define MICBIAS_SETTING_SFT (3)
+#define MICBIAS_SETTING_SFT 3
 #define MICBIAS_SETTING_MASK (0x7 << MICBIAS_SETTING_SFT)
+#define DEBOUNCE_RELEASE_SETTING_SFT 2
+#define DEBOUNCE_RELEASE_SETTING_MASK (0x1 << DEBOUNCE_RELEASE_SETTING_SFT)
+#define DEBOUNCE_PRESS_SETTING_SFT 0
+#define DEBOUNCE_PRESS_SETTING_MASK (0x3 << DEBOUNCE_PRESS_SETTING_SFT)
 
 /* TS3A227E_REG_ACCESSORY_STATUS  0x0b */
 #define TYPE_3_POLE 0x01
@@ -136,7 +144,7 @@ static bool ts3a227e_volatile_reg(struct device *dev, unsigned int reg)
 {
        switch (reg) {
        case TS3A227E_REG_INTERRUPT ... TS3A227E_REG_INTERRUPT_DISABLE:
-       case TS3A227E_REG_SETTING_2:
+       case TS3A227E_REG_SETTING_1 ... TS3A227E_REG_SETTING_2:
        case TS3A227E_REG_SWITCH_STATUS_1 ... TS3A227E_REG_ADC_OUTPUT:
                return true;
        default:
@@ -269,14 +277,55 @@ static const struct regmap_config ts3a227e_regmap_config = {
 static int ts3a227e_parse_device_property(struct ts3a227e *ts3a227e,
                                struct device *dev)
 {
-       u32 micbias;
+       u32 value;
+       u32 value_ms;
+       u32 setting3_value = 0;
+       u32 setting3_mask = 0;
        int err;
 
-       err = device_property_read_u32(dev, "ti,micbias", &micbias);
+       err = device_property_read_u32(dev, "ti,micbias", &value);
+       if (!err) {
+               setting3_mask = MICBIAS_SETTING_MASK;
+               setting3_value = (value << MICBIAS_SETTING_SFT) &
+                                MICBIAS_SETTING_MASK;
+       }
+
+       err = device_property_read_u32(dev, "ti,debounce-release-ms",
+                                      &value_ms);
        if (!err) {
+               value = (value_ms > 10);
+               setting3_mask |= DEBOUNCE_RELEASE_SETTING_MASK;
+               setting3_value |= (value << DEBOUNCE_RELEASE_SETTING_SFT) &
+                                 DEBOUNCE_RELEASE_SETTING_MASK;
+       }
+
+       err = device_property_read_u32(dev, "ti,debounce-press-ms", &value_ms);
+       if (!err) {
+               value = (value_ms + 20) / 40;
+               if (value > 3)
+                       value = 3;
+               setting3_mask |= DEBOUNCE_PRESS_SETTING_MASK;
+               setting3_value |= (value << DEBOUNCE_PRESS_SETTING_SFT) &
+                                 DEBOUNCE_PRESS_SETTING_MASK;
+       }
+
+       if (setting3_mask)
                regmap_update_bits(ts3a227e->regmap, TS3A227E_REG_SETTING_3,
-                       MICBIAS_SETTING_MASK,
-                       (micbias & 0x07) << MICBIAS_SETTING_SFT);
+                                  setting3_mask, setting3_value);
+
+       err = device_property_read_u32(dev, "ti,debounce-insertion-ms",
+                                      &value_ms);
+       if (!err) {
+               if (value_ms < 165)
+                       value = (value_ms + 15) / 30;
+               else if (value_ms < 1500)
+                       value = 6;
+               else
+                       value = 7;
+               regmap_update_bits(ts3a227e->regmap, TS3A227E_REG_SETTING_1,
+                                  DEBOUNCE_INSERTION_SETTING_MASK,
+                                  (value << DEBOUNCE_INSERTION_SETTING_SFT) &
+                                          DEBOUNCE_INSERTION_SETTING_MASK);
        }
 
        return 0;