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Subject[PATCH v3 1/8] mfd / platform: cros_ec: use devm_mfd_add_devices.
Date
Use devm_mfd_add_devices() for adding cros-ec core MFD child devices. This
reduces the need of remove callback from platform/chrome for removing the
MFD child devices.

Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
---

Changes in v3:
- Removed cros_ec_remove from include file.

Changes in v2:
- Use devm only for the cros-ec core.

drivers/mfd/cros_ec.c | 14 +++-----------
drivers/mfd/cros_ec_dev.c | 1 +
drivers/platform/chrome/cros_ec_i2c.c | 10 ----------
drivers/platform/chrome/cros_ec_lpc.c | 4 ----
drivers/platform/chrome/cros_ec_spi.c | 11 -----------
include/linux/mfd/cros_ec.h | 10 ----------
6 files changed, 4 insertions(+), 46 deletions(-)

diff --git a/drivers/mfd/cros_ec.c b/drivers/mfd/cros_ec.c
index fe6f83766144..6acfe036d522 100644
--- a/drivers/mfd/cros_ec.c
+++ b/drivers/mfd/cros_ec.c
@@ -129,8 +129,8 @@ int cros_ec_register(struct cros_ec_device *ec_dev)
}
}

- err = mfd_add_devices(ec_dev->dev, PLATFORM_DEVID_AUTO, &ec_cell, 1,
- NULL, ec_dev->irq, NULL);
+ err = devm_mfd_add_devices(ec_dev->dev, PLATFORM_DEVID_AUTO, &ec_cell,
+ 1, NULL, ec_dev->irq, NULL);
if (err) {
dev_err(dev,
"Failed to register Embedded Controller subdevice %d\n",
@@ -147,7 +147,7 @@ int cros_ec_register(struct cros_ec_device *ec_dev)
* - the EC is responsive at init time (it is not true for a
* sensor hub.
*/
- err = mfd_add_devices(ec_dev->dev, PLATFORM_DEVID_AUTO,
+ err = devm_mfd_add_devices(ec_dev->dev, PLATFORM_DEVID_AUTO,
&ec_pd_cell, 1, NULL, ec_dev->irq, NULL);
if (err) {
dev_err(dev,
@@ -181,14 +181,6 @@ int cros_ec_register(struct cros_ec_device *ec_dev)
}
EXPORT_SYMBOL(cros_ec_register);

-int cros_ec_remove(struct cros_ec_device *ec_dev)
-{
- mfd_remove_devices(ec_dev->dev);
-
- return 0;
-}
-EXPORT_SYMBOL(cros_ec_remove);
-
#ifdef CONFIG_PM_SLEEP
int cros_ec_suspend(struct cros_ec_device *ec_dev)
{
diff --git a/drivers/mfd/cros_ec_dev.c b/drivers/mfd/cros_ec_dev.c
index 8f9d6964173e..ff788d3e6d5f 100644
--- a/drivers/mfd/cros_ec_dev.c
+++ b/drivers/mfd/cros_ec_dev.c
@@ -493,6 +493,7 @@ static int ec_device_remove(struct platform_device *pdev)

cros_ec_debugfs_remove(ec);

+ mfd_remove_devices(ec->dev);
cdev_del(&ec->cdev);
device_unregister(&ec->class_dev);
return 0;
diff --git a/drivers/platform/chrome/cros_ec_i2c.c b/drivers/platform/chrome/cros_ec_i2c.c
index ef9b4763356f..9a009eaa4ada 100644
--- a/drivers/platform/chrome/cros_ec_i2c.c
+++ b/drivers/platform/chrome/cros_ec_i2c.c
@@ -317,15 +317,6 @@ static int cros_ec_i2c_probe(struct i2c_client *client,
return 0;
}

-static int cros_ec_i2c_remove(struct i2c_client *client)
-{
- struct cros_ec_device *ec_dev = i2c_get_clientdata(client);
-
- cros_ec_remove(ec_dev);
-
- return 0;
-}
-
#ifdef CONFIG_PM_SLEEP
static int cros_ec_i2c_suspend(struct device *dev)
{
@@ -376,7 +367,6 @@ static struct i2c_driver cros_ec_driver = {
.pm = &cros_ec_i2c_pm_ops,
},
.probe = cros_ec_i2c_probe,
- .remove = cros_ec_i2c_remove,
.id_table = cros_ec_i2c_id,
};

diff --git a/drivers/platform/chrome/cros_ec_lpc.c b/drivers/platform/chrome/cros_ec_lpc.c
index e1b75775cd4a..14684a56e40f 100644
--- a/drivers/platform/chrome/cros_ec_lpc.c
+++ b/drivers/platform/chrome/cros_ec_lpc.c
@@ -327,7 +327,6 @@ static int cros_ec_lpc_probe(struct platform_device *pdev)

static int cros_ec_lpc_remove(struct platform_device *pdev)
{
- struct cros_ec_device *ec_dev;
struct acpi_device *adev;

adev = ACPI_COMPANION(&pdev->dev);
@@ -335,9 +334,6 @@ static int cros_ec_lpc_remove(struct platform_device *pdev)
acpi_remove_notify_handler(adev->handle, ACPI_ALL_NOTIFY,
cros_ec_lpc_acpi_notify);

- ec_dev = platform_get_drvdata(pdev);
- cros_ec_remove(ec_dev);
-
return 0;
}

diff --git a/drivers/platform/chrome/cros_ec_spi.c b/drivers/platform/chrome/cros_ec_spi.c
index 2060d1483043..6cfbc2835beb 100644
--- a/drivers/platform/chrome/cros_ec_spi.c
+++ b/drivers/platform/chrome/cros_ec_spi.c
@@ -685,16 +685,6 @@ static int cros_ec_spi_probe(struct spi_device *spi)
return 0;
}

-static int cros_ec_spi_remove(struct spi_device *spi)
-{
- struct cros_ec_device *ec_dev;
-
- ec_dev = spi_get_drvdata(spi);
- cros_ec_remove(ec_dev);
-
- return 0;
-}
-
#ifdef CONFIG_PM_SLEEP
static int cros_ec_spi_suspend(struct device *dev)
{
@@ -733,7 +723,6 @@ static struct spi_driver cros_ec_driver_spi = {
.pm = &cros_ec_spi_pm_ops,
},
.probe = cros_ec_spi_probe,
- .remove = cros_ec_spi_remove,
.id_table = cros_ec_spi_id,
};

diff --git a/include/linux/mfd/cros_ec.h b/include/linux/mfd/cros_ec.h
index e44e3ec8a9c7..706dd724de52 100644
--- a/include/linux/mfd/cros_ec.h
+++ b/include/linux/mfd/cros_ec.h
@@ -281,16 +281,6 @@ int cros_ec_cmd_xfer(struct cros_ec_device *ec_dev,
int cros_ec_cmd_xfer_status(struct cros_ec_device *ec_dev,
struct cros_ec_command *msg);

-/**
- * cros_ec_remove() - Remove a ChromeOS EC.
- * @ec_dev: Device to register.
- *
- * Call this to deregister a ChromeOS EC, then clean up any private data.
- *
- * Return: 0 on success or negative error code.
- */
-int cros_ec_remove(struct cros_ec_device *ec_dev);
-
/**
* cros_ec_register() - Register a new ChromeOS EC, using the provided info.
* @ec_dev: Device to register.
--
2.19.1
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