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Diffstat (limited to 'drivers/mfd/tps65090.c')
-rw-r--r--drivers/mfd/tps65090.c167
1 files changed, 69 insertions, 98 deletions
diff --git a/drivers/mfd/tps65090.c b/drivers/mfd/tps65090.c
index fbd6ee67b5a5..24f42175a9b4 100644
--- a/drivers/mfd/tps65090.c
+++ b/drivers/mfd/tps65090.c
@@ -1,44 +1,25 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Core driver for TI TPS65090 PMIC family
*
* Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved.
-
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
-
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
-
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Author: Venu Byravarasu <vbyravarasu@nvidia.com>
*/
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/kernel.h>
-#include <linux/module.h>
+#include <linux/init.h>
#include <linux/mutex.h>
#include <linux/slab.h>
#include <linux/i2c.h>
#include <linux/mfd/core.h>
#include <linux/mfd/tps65090.h>
#include <linux/of.h>
-#include <linux/of_device.h>
#include <linux/err.h>
#define NUM_INT_REG 2
-#define TOTAL_NUM_REG 0x18
-
-/* interrupt status registers */
-#define TPS65090_INT_STS 0x0
-#define TPS65090_INT_STS2 0x1
-
-/* interrupt mask registers */
-#define TPS65090_INT_MSK 0x2
-#define TPS65090_INT_MSK2 0x3
#define TPS65090_INT1_MASK_VAC_STATUS_CHANGE 1
#define TPS65090_INT1_MASK_VSYS_STATUS_CHANGE 2
@@ -56,7 +37,7 @@
#define TPS65090_INT2_MASK_OVERLOAD_FET6 6
#define TPS65090_INT2_MASK_OVERLOAD_FET7 7
-static struct resource charger_resources[] = {
+static const struct resource charger_resources[] = {
{
.start = TPS65090_IRQ_VAC_STATUS_CHANGE,
.end = TPS65090_IRQ_VAC_STATUS_CHANGE,
@@ -64,11 +45,16 @@ static struct resource charger_resources[] = {
}
};
+enum tps65090_cells {
+ PMIC = 0,
+ CHARGER = 1,
+};
+
static struct mfd_cell tps65090s[] = {
- {
+ [PMIC] = {
.name = "tps65090-pmic",
},
- {
+ [CHARGER] = {
.name = "tps65090-charger",
.num_resources = ARRAY_SIZE(charger_resources),
.resources = &charger_resources[0],
@@ -79,85 +65,93 @@ static struct mfd_cell tps65090s[] = {
static const struct regmap_irq tps65090_irqs[] = {
/* INT1 IRQs*/
[TPS65090_IRQ_VAC_STATUS_CHANGE] = {
- .mask = TPS65090_INT1_MASK_VAC_STATUS_CHANGE,
+ .mask = TPS65090_INT1_MASK_VAC_STATUS_CHANGE,
},
[TPS65090_IRQ_VSYS_STATUS_CHANGE] = {
- .mask = TPS65090_INT1_MASK_VSYS_STATUS_CHANGE,
+ .mask = TPS65090_INT1_MASK_VSYS_STATUS_CHANGE,
},
[TPS65090_IRQ_BAT_STATUS_CHANGE] = {
- .mask = TPS65090_INT1_MASK_BAT_STATUS_CHANGE,
+ .mask = TPS65090_INT1_MASK_BAT_STATUS_CHANGE,
},
[TPS65090_IRQ_CHARGING_STATUS_CHANGE] = {
- .mask = TPS65090_INT1_MASK_CHARGING_STATUS_CHANGE,
+ .mask = TPS65090_INT1_MASK_CHARGING_STATUS_CHANGE,
},
[TPS65090_IRQ_CHARGING_COMPLETE] = {
- .mask = TPS65090_INT1_MASK_CHARGING_COMPLETE,
+ .mask = TPS65090_INT1_MASK_CHARGING_COMPLETE,
},
[TPS65090_IRQ_OVERLOAD_DCDC1] = {
- .mask = TPS65090_INT1_MASK_OVERLOAD_DCDC1,
+ .mask = TPS65090_INT1_MASK_OVERLOAD_DCDC1,
},
[TPS65090_IRQ_OVERLOAD_DCDC2] = {
- .mask = TPS65090_INT1_MASK_OVERLOAD_DCDC2,
+ .mask = TPS65090_INT1_MASK_OVERLOAD_DCDC2,
},
/* INT2 IRQs*/
[TPS65090_IRQ_OVERLOAD_DCDC3] = {
- .reg_offset = 1,
- .mask = TPS65090_INT2_MASK_OVERLOAD_DCDC3,
+ .reg_offset = 1,
+ .mask = TPS65090_INT2_MASK_OVERLOAD_DCDC3,
},
[TPS65090_IRQ_OVERLOAD_FET1] = {
- .reg_offset = 1,
- .mask = TPS65090_INT2_MASK_OVERLOAD_FET1,
+ .reg_offset = 1,
+ .mask = TPS65090_INT2_MASK_OVERLOAD_FET1,
},
[TPS65090_IRQ_OVERLOAD_FET2] = {
- .reg_offset = 1,
- .mask = TPS65090_INT2_MASK_OVERLOAD_FET2,
+ .reg_offset = 1,
+ .mask = TPS65090_INT2_MASK_OVERLOAD_FET2,
},
[TPS65090_IRQ_OVERLOAD_FET3] = {
- .reg_offset = 1,
- .mask = TPS65090_INT2_MASK_OVERLOAD_FET3,
+ .reg_offset = 1,
+ .mask = TPS65090_INT2_MASK_OVERLOAD_FET3,
},
[TPS65090_IRQ_OVERLOAD_FET4] = {
- .reg_offset = 1,
- .mask = TPS65090_INT2_MASK_OVERLOAD_FET4,
+ .reg_offset = 1,
+ .mask = TPS65090_INT2_MASK_OVERLOAD_FET4,
},
[TPS65090_IRQ_OVERLOAD_FET5] = {
- .reg_offset = 1,
- .mask = TPS65090_INT2_MASK_OVERLOAD_FET5,
+ .reg_offset = 1,
+ .mask = TPS65090_INT2_MASK_OVERLOAD_FET5,
},
[TPS65090_IRQ_OVERLOAD_FET6] = {
- .reg_offset = 1,
- .mask = TPS65090_INT2_MASK_OVERLOAD_FET6,
+ .reg_offset = 1,
+ .mask = TPS65090_INT2_MASK_OVERLOAD_FET6,
},
[TPS65090_IRQ_OVERLOAD_FET7] = {
- .reg_offset = 1,
- .mask = TPS65090_INT2_MASK_OVERLOAD_FET7,
+ .reg_offset = 1,
+ .mask = TPS65090_INT2_MASK_OVERLOAD_FET7,
},
};
-static struct regmap_irq_chip tps65090_irq_chip = {
+static const struct regmap_irq_chip tps65090_irq_chip = {
.name = "tps65090",
.irqs = tps65090_irqs,
.num_irqs = ARRAY_SIZE(tps65090_irqs),
.num_regs = NUM_INT_REG,
- .status_base = TPS65090_INT_STS,
- .mask_base = TPS65090_INT_MSK,
- .mask_invert = true,
+ .status_base = TPS65090_REG_INTR_STS,
+ .unmask_base = TPS65090_REG_INTR_MASK,
};
static bool is_volatile_reg(struct device *dev, unsigned int reg)
{
- if ((reg == TPS65090_INT_STS) || (reg == TPS65090_INT_STS2))
- return true;
- else
+ /* Nearly all registers have status bits mixed in, except a few */
+ switch (reg) {
+ case TPS65090_REG_INTR_MASK:
+ case TPS65090_REG_INTR_MASK2:
+ case TPS65090_REG_CG_CTRL0:
+ case TPS65090_REG_CG_CTRL1:
+ case TPS65090_REG_CG_CTRL2:
+ case TPS65090_REG_CG_CTRL3:
+ case TPS65090_REG_CG_CTRL4:
+ case TPS65090_REG_CG_CTRL5:
return false;
+ }
+ return true;
}
static const struct regmap_config tps65090_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
- .max_register = TOTAL_NUM_REG,
- .num_reg_defaults_raw = TOTAL_NUM_REG,
- .cache_type = REGCACHE_RBTREE,
+ .max_register = TPS65090_MAX_REG,
+ .num_reg_defaults_raw = TPS65090_NUM_REGS,
+ .cache_type = REGCACHE_MAPLE,
.volatile_reg = is_volatile_reg,
};
@@ -166,13 +160,11 @@ static const struct of_device_id tps65090_of_match[] = {
{ .compatible = "ti,tps65090",},
{},
};
-MODULE_DEVICE_TABLE(of, tps65090_of_match);
#endif
-static int tps65090_i2c_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
+static int tps65090_i2c_probe(struct i2c_client *client)
{
- struct tps65090_platform_data *pdata = client->dev.platform_data;
+ struct tps65090_platform_data *pdata = dev_get_platdata(&client->dev);
int irq_base = 0;
struct tps65090 *tps65090;
int ret;
@@ -187,10 +179,8 @@ static int tps65090_i2c_probe(struct i2c_client *client,
irq_base = pdata->irq_base;
tps65090 = devm_kzalloc(&client->dev, sizeof(*tps65090), GFP_KERNEL);
- if (!tps65090) {
- dev_err(&client->dev, "mem alloc for tps65090 failed\n");
+ if (!tps65090)
return -ENOMEM;
- }
tps65090->dev = &client->dev;
i2c_set_clientdata(client, tps65090);
@@ -204,18 +194,21 @@ static int tps65090_i2c_probe(struct i2c_client *client,
if (client->irq) {
ret = regmap_add_irq_chip(tps65090->rmap, client->irq,
- IRQF_ONESHOT | IRQF_TRIGGER_LOW, irq_base,
- &tps65090_irq_chip, &tps65090->irq_data);
- if (ret) {
- dev_err(&client->dev,
- "IRQ init failed with err: %d\n", ret);
+ IRQF_ONESHOT | IRQF_TRIGGER_LOW, irq_base,
+ &tps65090_irq_chip, &tps65090->irq_data);
+ if (ret) {
+ dev_err(&client->dev,
+ "IRQ init failed with err: %d\n", ret);
return ret;
}
+ } else {
+ /* Don't tell children they have an IRQ that'll never fire */
+ tps65090s[CHARGER].num_resources = 0;
}
ret = mfd_add_devices(tps65090->dev, -1, tps65090s,
- ARRAY_SIZE(tps65090s), NULL,
- 0, regmap_irq_get_domain(tps65090->irq_data));
+ ARRAY_SIZE(tps65090s), NULL,
+ 0, regmap_irq_get_domain(tps65090->irq_data));
if (ret) {
dev_err(&client->dev, "add mfd devices failed with err: %d\n",
ret);
@@ -230,31 +223,19 @@ err_irq_exit:
return ret;
}
-static int tps65090_i2c_remove(struct i2c_client *client)
-{
- struct tps65090 *tps65090 = i2c_get_clientdata(client);
-
- mfd_remove_devices(tps65090->dev);
- if (client->irq)
- regmap_del_irq_chip(client->irq, tps65090->irq_data);
-
- return 0;
-}
static const struct i2c_device_id tps65090_id_table[] = {
- { "tps65090", 0 },
- { },
+ { "tps65090" },
+ { }
};
-MODULE_DEVICE_TABLE(i2c, tps65090_id_table);
static struct i2c_driver tps65090_driver = {
.driver = {
.name = "tps65090",
- .owner = THIS_MODULE,
+ .suppress_bind_attrs = true,
.of_match_table = of_match_ptr(tps65090_of_match),
},
.probe = tps65090_i2c_probe,
- .remove = tps65090_i2c_remove,
.id_table = tps65090_id_table,
};
@@ -263,13 +244,3 @@ static int __init tps65090_init(void)
return i2c_add_driver(&tps65090_driver);
}
subsys_initcall(tps65090_init);
-
-static void __exit tps65090_exit(void)
-{
- i2c_del_driver(&tps65090_driver);
-}
-module_exit(tps65090_exit);
-
-MODULE_DESCRIPTION("TPS65090 core driver");
-MODULE_AUTHOR("Venu Byravarasu <vbyravarasu@nvidia.com>");
-MODULE_LICENSE("GPL v2");
generated by cgit (git 2.34.1) at 2025-12-25 11:53:03 +0000