mfd: palmas: Add tps65917 support

Add tps65917 PMIC support. tps65917 is a subset of palmas PMIC.
Some of the register definitions and the interrupt mappings
are different.

Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

1 files changed, 172 insertions, 7 deletions

diff --git a/drivers/mfd/palmas.c b/drivers/mfd/palmas.c
index d280d789e55a..6e1786187dd8 100644
--- a/drivers/mfd/palmas.c
+++ b/drivers/mfd/palmas.c
@@ -92,6 +92,133 @@ static const struct regmap_config palmas_regmap_config[PALMAS_NUM_CLIENTS] = {
         },
 };
 
+static const struct regmap_irq tps65917_irqs[] = {
+        /* INT1 IRQs */
+        [TPS65917_RESERVED1] = {
+                .mask = TPS65917_RESERVED,
+        },
+        [TPS65917_PWRON_IRQ] = {
+                .mask = TPS65917_INT1_STATUS_PWRON,
+        },
+        [TPS65917_LONG_PRESS_KEY_IRQ] = {
+                .mask = TPS65917_INT1_STATUS_LONG_PRESS_KEY,
+        },
+        [TPS65917_RESERVED2] = {
+                .mask = TPS65917_RESERVED,
+        },
+        [TPS65917_PWRDOWN_IRQ] = {
+                .mask = TPS65917_INT1_STATUS_PWRDOWN,
+        },
+        [TPS65917_HOTDIE_IRQ] = {
+                .mask = TPS65917_INT1_STATUS_HOTDIE,
+        },
+        [TPS65917_VSYS_MON_IRQ] = {
+                .mask = TPS65917_INT1_STATUS_VSYS_MON,
+        },
+        [TPS65917_RESERVED3] = {
+                .mask = TPS65917_RESERVED,
+        },
+        /* INT2 IRQs*/
+        [TPS65917_RESERVED4] = {
+                .mask = TPS65917_RESERVED,
+                .reg_offset = 1,
+        },
+        [TPS65917_OTP_ERROR_IRQ] = {
+                .mask = TPS65917_INT2_STATUS_OTP_ERROR,
+                .reg_offset = 1,
+        },
+        [TPS65917_WDT_IRQ] = {
+                .mask = TPS65917_INT2_STATUS_WDT,
+                .reg_offset = 1,
+        },
+        [TPS65917_RESERVED5] = {
+                .mask = TPS65917_RESERVED,
+                .reg_offset = 1,
+        },
+        [TPS65917_RESET_IN_IRQ] = {
+                .mask = TPS65917_INT2_STATUS_RESET_IN,
+                .reg_offset = 1,
+        },
+        [TPS65917_FSD_IRQ] = {
+                .mask = TPS65917_INT2_STATUS_FSD,
+                .reg_offset = 1,
+        },
+        [TPS65917_SHORT_IRQ] = {
+                .mask = TPS65917_INT2_STATUS_SHORT,
+                .reg_offset = 1,
+        },
+        [TPS65917_RESERVED6] = {
+                .mask = TPS65917_RESERVED,
+                .reg_offset = 1,
+        },
+        /* INT3 IRQs */
+        [TPS65917_GPADC_AUTO_0_IRQ] = {
+                .mask = TPS65917_INT3_STATUS_GPADC_AUTO_0,
+                .reg_offset = 2,
+        },
+        [TPS65917_GPADC_AUTO_1_IRQ] = {
+                .mask = TPS65917_INT3_STATUS_GPADC_AUTO_1,
+                .reg_offset = 2,
+        },
+        [TPS65917_GPADC_EOC_SW_IRQ] = {
+                .mask = TPS65917_INT3_STATUS_GPADC_EOC_SW,
+                .reg_offset = 2,
+        },
+        [TPS65917_RESREVED6] = {
+                .mask = TPS65917_RESERVED6,
+                .reg_offset = 2,
+        },
+        [TPS65917_RESERVED7] = {
+                .mask = TPS65917_RESERVED,
+                .reg_offset = 2,
+        },
+        [TPS65917_RESERVED8] = {
+                .mask = TPS65917_RESERVED,
+                .reg_offset = 2,
+        },
+        [TPS65917_RESERVED9] = {
+                .mask = TPS65917_RESERVED,
+                .reg_offset = 2,
+        },
+        [TPS65917_VBUS_IRQ] = {
+                .mask = TPS65917_INT3_STATUS_VBUS,
+                .reg_offset = 2,
+        },
+        /* INT4 IRQs */
+        [TPS65917_GPIO_0_IRQ] = {
+                .mask = TPS65917_INT4_STATUS_GPIO_0,
+                .reg_offset = 3,
+        },
+        [TPS65917_GPIO_1_IRQ] = {
+                .mask = TPS65917_INT4_STATUS_GPIO_1,
+                .reg_offset = 3,
+        },
+        [TPS65917_GPIO_2_IRQ] = {
+                .mask = TPS65917_INT4_STATUS_GPIO_2,
+                .reg_offset = 3,
+        },
+        [TPS65917_GPIO_3_IRQ] = {
+                .mask = TPS65917_INT4_STATUS_GPIO_3,
+                .reg_offset = 3,
+        },
+        [TPS65917_GPIO_4_IRQ] = {
+                .mask = TPS65917_INT4_STATUS_GPIO_4,
+                .reg_offset = 3,
+        },
+        [TPS65917_GPIO_5_IRQ] = {
+                .mask = TPS65917_INT4_STATUS_GPIO_5,
+                .reg_offset = 3,
+        },
+        [TPS65917_GPIO_6_IRQ] = {
+                .mask = TPS65917_INT4_STATUS_GPIO_6,
+                .reg_offset = 3,
+        },
+        [TPS65917_RESERVED10] = {
+                .mask = TPS65917_RESERVED10,
+                .reg_offset = 3,
+        },
+};
+
 static const struct regmap_irq palmas_irqs[] = {
         /* INT1 IRQs */
         [PALMAS_CHARG_DET_N_VBUS_OVV_IRQ] = {
@@ -232,6 +359,19 @@ static struct regmap_irq_chip palmas_irq_chip = {
                         PALMAS_INT1_MASK),
 };
 
+static struct regmap_irq_chip tps65917_irq_chip = {
+        .name = "tps65917",
+        .irqs = tps65917_irqs,
+        .num_irqs = ARRAY_SIZE(tps65917_irqs),
+
+        .num_regs = 4,
+        .irq_reg_stride = 5,
+        .status_base = PALMAS_BASE_TO_REG(PALMAS_INTERRUPT_BASE,
+                        PALMAS_INT1_STATUS),
+        .mask_base = PALMAS_BASE_TO_REG(PALMAS_INTERRUPT_BASE,
+                        PALMAS_INT1_MASK),
+};
+
 int palmas_ext_control_req_config(struct palmas *palmas,
         enum palmas_external_requestor_id id,  int ext_ctrl, bool enable)
 {
@@ -357,14 +497,38 @@ static void palmas_power_off(void)
 static unsigned int palmas_features = PALMAS_PMIC_FEATURE_SMPS10_BOOST;
 static unsigned int tps659038_features;
 
+struct palmas_driver_data {
+        unsigned int *features;
+        struct regmap_irq_chip *irq_chip;
+};
+
+static struct palmas_driver_data palmas_data = {
+        .features = &palmas_features,
+        .irq_chip = &palmas_irq_chip,
+};
+
+static struct palmas_driver_data tps659038_data = {
+        .features = &tps659038_features,
+        .irq_chip = &palmas_irq_chip,
+};
+
+static struct palmas_driver_data tps65917_data = {
+        .features = &tps659038_features,
+        .irq_chip = &tps65917_irq_chip,
+};
+
 static const struct of_device_id of_palmas_match_tbl[] = {
         {
                 .compatible = "ti,palmas",
-                .data = &palmas_features,
+                .data = &palmas_data,
         },
         {
                 .compatible = "ti,tps659038",
-                .data = &tps659038_features,
+                .data = &tps659038_data,
+        },
+        {
+                .compatible = "ti,tps65917",
+                .data = &tps65917_data,
         },
         { },
 };
@@ -375,9 +539,10 @@ static int palmas_i2c_probe(struct i2c_client *i2c,
 {
         struct palmas *palmas;
         struct palmas_platform_data *pdata;
+        struct palmas_driver_data *driver_data;
         struct device_node *node = i2c->dev.of_node;
         int ret = 0, i;
-        unsigned int reg, addr, *features;
+        unsigned int reg, addr;
         int slave;
         const struct of_device_id *match;
 
@@ -408,8 +573,8 @@ static int palmas_i2c_probe(struct i2c_client *i2c,
         if (!match)
                 return -ENODATA;
 
-        features = (unsigned int *)match->data;
-        palmas->features = *features;
+        driver_data = (struct palmas_driver_data *)match->data;
+        palmas->features = *driver_data->features;
 
         for (i = 0; i < PALMAS_NUM_CLIENTS; i++) {
                 if (i == 0)
@@ -463,8 +628,8 @@ static int palmas_i2c_probe(struct i2c_client *i2c,
         regmap_write(palmas->regmap[slave], addr, reg);
 
         ret = regmap_add_irq_chip(palmas->regmap[slave], palmas->irq,
-                        IRQF_ONESHOT | pdata->irq_flags, 0, &palmas_irq_chip,
-                        &palmas->irq_data);
+                                  IRQF_ONESHOT | pdata->irq_flags, 0,
+                                  driver_data->irq_chip, &palmas->irq_data);
         if (ret < 0)
                 goto err_i2c;