Input: sc27xx - add support for sc2730 and sc2721

Add new compatible strings and match data to support sc2730 and sc2721
which are two varieties of SC27XX family.

Signed-off-by: Nemo Han <nemo.han@unisoc.com>
Signed-off-by: Chunyan Zhang <chunyan.zhang@unisoc.com>
Link: https://lore.kernel.org/r/20201117034949.47877-2-zhang.lyra@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

diff --git a/drivers/input/misc/sc27xx-vibra.c b/drivers/input/misc/sc27xx-vibra.c
index 295251abbdacd255f8ce0ccc7c6d8c25df74d4c2..1478017f09689bb4e288e8e4d7e76eee4c8abb0f 100644 (file)
--- a/drivers/input/misc/sc27xx-vibra.c
+++ b/drivers/input/misc/sc27xx-vibra.c
@@ -3,45 +3,82 @@
  * Copyright (C) 2018 Spreadtrum Communications Inc.
  */
 
+#include <linux/device.h>
+#include <linux/input.h>
+#include <linux/mod_devicetable.h>
 #include <linux/module.h>
-#include <linux/of_address.h>
 #include <linux/platform_device.h>
+#include <linux/property.h>
 #include <linux/regmap.h>
-#include <linux/input.h>
 #include <linux/workqueue.h>
 
-#define CUR_DRV_CAL_SEL                GENMASK(13, 12)
-#define SLP_LDOVIBR_PD_EN      BIT(9)
-#define LDO_VIBR_PD            BIT(8)
+#define CUR_DRV_CAL_SEL                        GENMASK(13, 12)
+#define SLP_LDOVIBR_PD_EN              BIT(9)
+#define LDO_VIBR_PD                    BIT(8)
+#define SC2730_CUR_DRV_CAL_SEL         0
+#define SC2730_SLP_LDOVIBR_PD_EN       BIT(14)
+#define SC2730_LDO_VIBR_PD             BIT(13)
+
+struct sc27xx_vibra_data {
+       u32 cur_drv_cal_sel;
+       u32 slp_pd_en;
+       u32 ldo_pd;
+};
 
 struct vibra_info {
        struct input_dev        *input_dev;
        struct work_struct      play_work;
        struct regmap           *regmap;
+       const struct sc27xx_vibra_data *data;
        u32                     base;
        u32                     strength;
        bool                    enabled;
 };
 
+static const struct sc27xx_vibra_data sc2731_data = {
+       .cur_drv_cal_sel = CUR_DRV_CAL_SEL,
+       .slp_pd_en = SLP_LDOVIBR_PD_EN,
+       .ldo_pd = LDO_VIBR_PD,
+};
+
+static const struct sc27xx_vibra_data sc2730_data = {
+       .cur_drv_cal_sel = SC2730_CUR_DRV_CAL_SEL,
+       .slp_pd_en = SC2730_SLP_LDOVIBR_PD_EN,
+       .ldo_pd = SC2730_LDO_VIBR_PD,
+};
+
+static const struct sc27xx_vibra_data sc2721_data = {
+       .cur_drv_cal_sel = CUR_DRV_CAL_SEL,
+       .slp_pd_en = SLP_LDOVIBR_PD_EN,
+       .ldo_pd = LDO_VIBR_PD,
+};
+
 static void sc27xx_vibra_set(struct vibra_info *info, bool on)
 {
+       const struct sc27xx_vibra_data *data = info->data;
        if (on) {
-               regmap_update_bits(info->regmap, info->base, LDO_VIBR_PD, 0);
+               regmap_update_bits(info->regmap, info->base, data->ldo_pd, 0);
                regmap_update_bits(info->regmap, info->base,
-                                  SLP_LDOVIBR_PD_EN, 0);
+                                  data->slp_pd_en, 0);
                info->enabled = true;
        } else {
-               regmap_update_bits(info->regmap, info->base, LDO_VIBR_PD,
-                                  LDO_VIBR_PD);
+               regmap_update_bits(info->regmap, info->base, data->ldo_pd,
+                                  data->ldo_pd);
                regmap_update_bits(info->regmap, info->base,
-                                  SLP_LDOVIBR_PD_EN, SLP_LDOVIBR_PD_EN);
+                                  data->slp_pd_en, data->slp_pd_en);
                info->enabled = false;
        }
 }
 
 static int sc27xx_vibra_hw_init(struct vibra_info *info)
 {
-       return regmap_update_bits(info->regmap, info->base, CUR_DRV_CAL_SEL, 0);
+       const struct sc27xx_vibra_data *data = info->data;
+
+       if (!data->cur_drv_cal_sel)
+               return 0;
+
+       return regmap_update_bits(info->regmap, info->base,
+                                 data->cur_drv_cal_sel, 0);
 }
 
 static void sc27xx_vibra_play_work(struct work_struct *work)
@@ -78,8 +115,15 @@ static void sc27xx_vibra_close(struct input_dev *input)
 static int sc27xx_vibra_probe(struct platform_device *pdev)
 {
        struct vibra_info *info;
+       const struct sc27xx_vibra_data *data;
        int error;
 
+       data = device_get_match_data(&pdev->dev);
+       if (!data) {
+               dev_err(&pdev->dev, "no matching driver data found\n");
+               return -EINVAL;
+       }
+
        info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL);
        if (!info)
                return -ENOMEM;
@@ -105,6 +149,7 @@ static int sc27xx_vibra_probe(struct platform_device *pdev)
        info->input_dev->name = "sc27xx:vibrator";
        info->input_dev->id.version = 0;
        info->input_dev->close = sc27xx_vibra_close;
+       info->data = data;
 
        input_set_drvdata(info->input_dev, info);
        input_set_capability(info->input_dev, EV_FF, FF_RUMBLE);
@@ -134,7 +179,9 @@ static int sc27xx_vibra_probe(struct platform_device *pdev)
 }
 
 static const struct of_device_id sc27xx_vibra_of_match[] = {
-       { .compatible = "sprd,sc2731-vibrator", },
+       { .compatible = "sprd,sc2721-vibrator", .data = &sc2721_data },
+       { .compatible = "sprd,sc2730-vibrator", .data = &sc2730_data },
+       { .compatible = "sprd,sc2731-vibrator", .data = &sc2731_data },
        {}
 };
 MODULE_DEVICE_TABLE(of, sc27xx_vibra_of_match);