diff options
Diffstat (limited to 'drivers/input/touchscreen/raydium_i2c_ts.c')
| -rw-r--r-- | drivers/input/touchscreen/raydium_i2c_ts.c | 78 |
1 files changed, 26 insertions, 52 deletions
diff --git a/drivers/input/touchscreen/raydium_i2c_ts.c b/drivers/input/touchscreen/raydium_i2c_ts.c index 3a4952935366..f975b53e8825 100644 --- a/drivers/input/touchscreen/raydium_i2c_ts.c +++ b/drivers/input/touchscreen/raydium_i2c_ts.c @@ -21,9 +21,10 @@ #include <linux/interrupt.h> #include <linux/module.h> #include <linux/of.h> +#include <linux/pm_wakeirq.h> #include <linux/regulator/consumer.h> #include <linux/slab.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> /* Slave I2C mode */ #define RM_BOOT_BLDR 0x02 @@ -134,8 +135,6 @@ struct raydium_data { u8 pkg_size; enum raydium_boot_mode boot_mode; - - bool wake_irq_enabled; }; /* @@ -211,12 +210,14 @@ static int raydium_i2c_send(struct i2c_client *client, error = raydium_i2c_xfer(client, addr, xfer, ARRAY_SIZE(xfer)); if (likely(!error)) - return 0; + goto out; msleep(RM_RETRY_DELAY_MS); } while (++tries < RM_MAX_RETRIES); dev_err(&client->dev, "%s failed: %d\n", __func__, error); +out: + kfree(tx_buf); return error; } @@ -1003,7 +1004,7 @@ static DEVICE_ATTR(boot_mode, S_IRUGO, raydium_i2c_boot_mode_show, NULL); static DEVICE_ATTR(update_fw, S_IWUSR, NULL, raydium_i2c_update_fw_store); static DEVICE_ATTR(calibrate, S_IWUSR, NULL, raydium_i2c_calibrate_store); -static struct attribute *raydium_i2c_attributes[] = { +static struct attribute *raydium_i2c_attrs[] = { &dev_attr_update_fw.attr, &dev_attr_boot_mode.attr, &dev_attr_fw_version.attr, @@ -1011,10 +1012,7 @@ static struct attribute *raydium_i2c_attributes[] = { &dev_attr_calibrate.attr, NULL }; - -static const struct attribute_group raydium_i2c_attribute_group = { - .attrs = raydium_i2c_attributes, -}; +ATTRIBUTE_GROUPS(raydium_i2c); static int raydium_i2c_power_on(struct raydium_data *ts) { @@ -1064,8 +1062,7 @@ static void raydium_i2c_power_off(void *_data) } } -static int raydium_i2c_probe(struct i2c_client *client, - const struct i2c_device_id *id) +static int raydium_i2c_probe(struct i2c_client *client) { union i2c_smbus_data dummy; struct raydium_data *ts; @@ -1087,32 +1084,20 @@ static int raydium_i2c_probe(struct i2c_client *client, i2c_set_clientdata(client, ts); ts->avdd = devm_regulator_get(&client->dev, "avdd"); - if (IS_ERR(ts->avdd)) { - error = PTR_ERR(ts->avdd); - if (error != -EPROBE_DEFER) - dev_err(&client->dev, - "Failed to get 'avdd' regulator: %d\n", error); - return error; - } + if (IS_ERR(ts->avdd)) + return dev_err_probe(&client->dev, PTR_ERR(ts->avdd), + "Failed to get 'avdd' regulator\n"); ts->vccio = devm_regulator_get(&client->dev, "vccio"); - if (IS_ERR(ts->vccio)) { - error = PTR_ERR(ts->vccio); - if (error != -EPROBE_DEFER) - dev_err(&client->dev, - "Failed to get 'vccio' regulator: %d\n", error); - return error; - } + if (IS_ERR(ts->vccio)) + return dev_err_probe(&client->dev, PTR_ERR(ts->vccio), + "Failed to get 'vccio' regulator\n"); ts->reset_gpio = devm_gpiod_get_optional(&client->dev, "reset", GPIOD_OUT_LOW); - if (IS_ERR(ts->reset_gpio)) { - error = PTR_ERR(ts->reset_gpio); - if (error != -EPROBE_DEFER) - dev_err(&client->dev, - "failed to get reset gpio: %d\n", error); - return error; - } + if (IS_ERR(ts->reset_gpio)) + return dev_err_probe(&client->dev, PTR_ERR(ts->reset_gpio), + "Failed to get reset gpio\n"); error = raydium_i2c_power_on(ts); if (error) @@ -1186,18 +1171,10 @@ static int raydium_i2c_probe(struct i2c_client *client, return error; } - error = devm_device_add_group(&client->dev, - &raydium_i2c_attribute_group); - if (error) { - dev_err(&client->dev, "failed to create sysfs attributes: %d\n", - error); - return error; - } - return 0; } -static void __maybe_unused raydium_enter_sleep(struct i2c_client *client) +static void raydium_enter_sleep(struct i2c_client *client) { static const u8 sleep_cmd[] = { 0x5A, 0xff, 0x00, 0x0f }; int error; @@ -1209,7 +1186,7 @@ static void __maybe_unused raydium_enter_sleep(struct i2c_client *client) "sleep command failed: %d\n", error); } -static int __maybe_unused raydium_i2c_suspend(struct device *dev) +static int raydium_i2c_suspend(struct device *dev) { struct i2c_client *client = to_i2c_client(dev); struct raydium_data *ts = i2c_get_clientdata(client); @@ -1222,8 +1199,6 @@ static int __maybe_unused raydium_i2c_suspend(struct device *dev) if (device_may_wakeup(dev)) { raydium_enter_sleep(client); - - ts->wake_irq_enabled = (enable_irq_wake(client->irq) == 0); } else { raydium_i2c_power_off(ts); } @@ -1231,14 +1206,12 @@ static int __maybe_unused raydium_i2c_suspend(struct device *dev) return 0; } -static int __maybe_unused raydium_i2c_resume(struct device *dev) +static int raydium_i2c_resume(struct device *dev) { struct i2c_client *client = to_i2c_client(dev); struct raydium_data *ts = i2c_get_clientdata(client); if (device_may_wakeup(dev)) { - if (ts->wake_irq_enabled) - disable_irq_wake(client->irq); raydium_i2c_sw_reset(client); } else { raydium_i2c_power_on(ts); @@ -1250,12 +1223,12 @@ static int __maybe_unused raydium_i2c_resume(struct device *dev) return 0; } -static SIMPLE_DEV_PM_OPS(raydium_i2c_pm_ops, - raydium_i2c_suspend, raydium_i2c_resume); +static DEFINE_SIMPLE_DEV_PM_OPS(raydium_i2c_pm_ops, + raydium_i2c_suspend, raydium_i2c_resume); static const struct i2c_device_id raydium_i2c_id[] = { - { "raydium_i2c", 0 }, - { "rm32380", 0 }, + { "raydium_i2c" }, + { "rm32380" }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(i2c, raydium_i2c_id); @@ -1281,7 +1254,8 @@ static struct i2c_driver raydium_i2c_driver = { .id_table = raydium_i2c_id, .driver = { .name = "raydium_ts", - .pm = &raydium_i2c_pm_ops, + .dev_groups = raydium_i2c_groups, + .pm = pm_sleep_ptr(&raydium_i2c_pm_ops), .acpi_match_table = ACPI_PTR(raydium_acpi_id), .of_match_table = of_match_ptr(raydium_of_match), }, |