Input: mtk-pmic-keys - add support for MT6331 PMIC keys

Add support for PMIC Keys of the MT6331 PMIC.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Link: https://lore.kernel.org/r/20220913123941.385349-1-angelogioacchino.delregno@collabora.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

diff --git a/drivers/input/keyboard/mtk-pmic-keys.c b/drivers/input/keyboard/mtk-pmic-keys.c
index 6404081..9b34da0 100644 (file)
--- a/drivers/input/keyboard/mtk-pmic-keys.c
+++ b/drivers/input/keyboard/mtk-pmic-keys.c
@@ -9,6 +9,7 @@
 #include <linux/interrupt.h>
 #include <linux/kernel.h>
 #include <linux/mfd/mt6323/registers.h>
+#include <linux/mfd/mt6331/registers.h>
 #include <linux/mfd/mt6358/registers.h>
 #include <linux/mfd/mt6397/core.h>
 #include <linux/mfd/mt6397/registers.h>
@@ -22,6 +23,10 @@
 #define MTK_PMIC_PWRKEY_RST    BIT(6)
 #define MTK_PMIC_HOMEKEY_RST   BIT(5)
 
+#define MTK_PMIC_MT6331_RST_DU_MASK    GENMASK(13, 12)
+#define MTK_PMIC_MT6331_PWRKEY_RST     BIT(9)
+#define MTK_PMIC_MT6331_HOMEKEY_RST    BIT(8)
+
 #define MTK_PMIC_PWRKEY_INDEX  0
 #define MTK_PMIC_HOMEKEY_INDEX 1
 #define MTK_PMIC_MAX_KEY_COUNT 2
@@ -72,6 +77,19 @@ static const struct mtk_pmic_regs mt6323_regs = {
        .rst_lprst_mask = MTK_PMIC_RST_DU_MASK,
 };
 
+static const struct mtk_pmic_regs mt6331_regs = {
+       .keys_regs[MTK_PMIC_PWRKEY_INDEX] =
+               MTK_PMIC_KEYS_REGS(MT6331_TOPSTATUS, 0x2,
+                                  MT6331_INT_MISC_CON, 0x4,
+                                  MTK_PMIC_MT6331_PWRKEY_RST),
+       .keys_regs[MTK_PMIC_HOMEKEY_INDEX] =
+               MTK_PMIC_KEYS_REGS(MT6331_TOPSTATUS, 0x4,
+                                  MT6331_INT_MISC_CON, 0x2,
+                                  MTK_PMIC_MT6331_HOMEKEY_RST),
+       .pmic_rst_reg = MT6331_TOP_RST_MISC,
+       .rst_lprst_mask = MTK_PMIC_MT6331_RST_DU_MASK,
+};
+
 static const struct mtk_pmic_regs mt6358_regs = {
        .keys_regs[MTK_PMIC_PWRKEY_INDEX] =
                MTK_PMIC_KEYS_REGS(MT6358_TOPSTATUS,
@@ -256,6 +274,9 @@ static const struct of_device_id of_mtk_pmic_keys_match_tbl[] = {
                .compatible = "mediatek,mt6323-keys",
                .data = &mt6323_regs,
        }, {
+               .compatible = "mediatek,mt6331-keys",
+               .data = &mt6331_regs,
+       }, {
                .compatible = "mediatek,mt6358-keys",
                .data = &mt6358_regs,
        }, {