diff mbox series

[v3,10/13] platform/x86: intel_cht_int33fe: Provide software nodes for the devices

Message ID 20190412134122.82903-11-heikki.krogerus@linux.intel.com (mailing list archive)
State Deferred, archived
Headers show
Series Software fwnode references | expand

Commit Message

Heikki Krogerus April 12, 2019, 1:41 p.m. UTC 
Software nodes provide two features that we will need later.
1) Software nodes can have references to other software nodes.
2) Software nodes can exist before a device entry is created.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
---
 drivers/platform/x86/intel_cht_int33fe.c | 68 +++++++++++++++++++++---
 1 file changed, 62 insertions(+), 6 deletions(-)

Comments

Andy Shevchenko April 12, 2019, 3:29 p.m. UTC | #1 
On Fri, Apr 12, 2019 at 4:41 PM Heikki Krogerus
<heikki.krogerus@linux.intel.com> wrote:
>
> Software nodes provide two features that we will need later.
> 1) Software nodes can have references to other software nodes.
> 2) Software nodes can exist before a device entry is created.
>

Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>

> Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
> ---
>  drivers/platform/x86/intel_cht_int33fe.c | 68 +++++++++++++++++++++---
>  1 file changed, 62 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/platform/x86/intel_cht_int33fe.c b/drivers/platform/x86/intel_cht_int33fe.c
> index d586bb22d7e8..863a792d9282 100644
> --- a/drivers/platform/x86/intel_cht_int33fe.c
> +++ b/drivers/platform/x86/intel_cht_int33fe.c
> @@ -27,12 +27,21 @@
>
>  #define EXPECTED_PTYPE         4
>
> +enum {
> +       INT33FE_NODE_FUSB302,
> +       INT33FE_NODE_MAX17047,
> +       INT33FE_NODE_PI3USB30532,
> +       INT33FE_NODE_MAX,
> +};
> +
>  struct cht_int33fe_data {
>         struct i2c_client *max17047;
>         struct i2c_client *fusb302;
>         struct i2c_client *pi3usb30532;
>         /* Contain a list-head must be per device */
>         struct device_connection connections[4];
> +
> +       struct fwnode_handle *node[INT33FE_NODE_MAX];
>  };
>
>  /*
> @@ -73,6 +82,7 @@ static const struct property_entry max17047_props[] = {
>  static int
>  cht_int33fe_register_max17047(struct device *dev, struct cht_int33fe_data *data)
>  {
> +       struct fwnode_handle *fwnode = data->node[INT33FE_NODE_MAX17047];
>         struct i2c_client *max17047 = NULL;
>         struct i2c_board_info board_info;
>         int ret;
> @@ -80,9 +90,7 @@ cht_int33fe_register_max17047(struct device *dev, struct cht_int33fe_data *data)
>         i2c_for_each_dev(&max17047, cht_int33fe_check_for_max17047);
>         if (max17047) {
>                 /* Pre-existing i2c-client for the max17047, add device-props */
> -               ret = device_add_properties(&max17047->dev, max17047_props);
> -               if (ret)
> -                       return ret;
> +               max17047->dev.fwnode->secondary = fwnode;
>                 /* And re-probe to get the new device-props applied. */
>                 ret = device_reprobe(&max17047->dev);
>                 if (ret)
> @@ -93,7 +101,7 @@ cht_int33fe_register_max17047(struct device *dev, struct cht_int33fe_data *data)
>         memset(&board_info, 0, sizeof(board_info));
>         strlcpy(board_info.type, "max17047", I2C_NAME_SIZE);
>         board_info.dev_name = "max17047";
> -       board_info.properties = max17047_props;
> +       board_info.fwnode = fwnode;
>         data->max17047 = i2c_acpi_new_device(dev, 1, &board_info);
>         if (IS_ERR(data->max17047))
>                 return PTR_ERR(data->max17047);
> @@ -109,6 +117,45 @@ static const struct property_entry fusb302_props[] = {
>         { }
>  };
>
> +static const struct property_entry *props[] = {
> +       [INT33FE_NODE_FUSB302]          = fusb302_props,
> +       [INT33FE_NODE_MAX17047]         = max17047_props,
> +       [INT33FE_NODE_PI3USB30532]      = NULL,
> +};
> +
> +static void cht_int33fe_remove_nodes(struct cht_int33fe_data *data)
> +{
> +       int i;
> +
> +       for (i = 0; i < INT33FE_NODE_MAX; i++) {
> +               fwnode_remove_software_node(data->node[i]);
> +               data->node[i] = NULL;
> +       }
> +}
> +
> +static int cht_int33fe_add_nodes(struct cht_int33fe_data *data)
> +{
> +       struct fwnode_handle *fwnode;
> +       int ret;
> +       int i;
> +
> +       for (i = 0; i < ARRAY_SIZE(props); i++) {
> +               fwnode = fwnode_create_software_node(props[i], NULL);
> +               if (IS_ERR(fwnode)) {
> +                       ret = PTR_ERR(fwnode);
> +                       goto err_remove_nodes;
> +               }
> +               data->node[i] = fwnode;
> +       }
> +
> +       return 0;
> +
> +err_remove_nodes:
> +       cht_int33fe_remove_nodes(data);
> +
> +       return ret;
> +}
> +
>  static int cht_int33fe_probe(struct platform_device *pdev)
>  {
>         struct device *dev = &pdev->dev;
> @@ -173,10 +220,14 @@ static int cht_int33fe_probe(struct platform_device *pdev)
>         if (!data)
>                 return -ENOMEM;
>
> +       ret = cht_int33fe_add_nodes(data);
> +       if (ret)
> +               return ret;
> +
>         /* Work around BIOS bug, see comment on cht_int33fe_check_for_max17047 */
>         ret = cht_int33fe_register_max17047(dev, data);
>         if (ret)
> -               return ret;
> +               goto out_remove_nodes;
>
>         data->connections[0].endpoint[0] = "port0";
>         data->connections[0].endpoint[1] = "i2c-pi3usb30532-switch";
> @@ -193,7 +244,7 @@ static int cht_int33fe_probe(struct platform_device *pdev)
>         memset(&board_info, 0, sizeof(board_info));
>         strlcpy(board_info.type, "typec_fusb302", I2C_NAME_SIZE);
>         board_info.dev_name = "fusb302";
> -       board_info.properties = fusb302_props;
> +       board_info.fwnode = data->node[INT33FE_NODE_FUSB302];
>         board_info.irq = fusb302_irq;
>
>         data->fusb302 = i2c_acpi_new_device(dev, 2, &board_info);
> @@ -204,6 +255,7 @@ static int cht_int33fe_probe(struct platform_device *pdev)
>
>         memset(&board_info, 0, sizeof(board_info));
>         board_info.dev_name = "pi3usb30532";
> +       board_info.fwnode = data->node[INT33FE_NODE_PI3USB30532];
>         strlcpy(board_info.type, "pi3usb30532", I2C_NAME_SIZE);
>
>         data->pi3usb30532 = i2c_acpi_new_device(dev, 3, &board_info);
> @@ -224,6 +276,9 @@ static int cht_int33fe_probe(struct platform_device *pdev)
>
>         device_connections_remove(data->connections);
>
> +out_remove_nodes:
> +       cht_int33fe_remove_nodes(data);
> +
>         return ret;
>  }
>
> @@ -236,6 +291,7 @@ static int cht_int33fe_remove(struct platform_device *pdev)
>         i2c_unregister_device(data->max17047);
>
>         device_connections_remove(data->connections);
> +       cht_int33fe_remove_nodes(data);
>
>         return 0;
>  }
> --
> 2.20.1
>
diff mbox series

Patch

diff --git a/drivers/platform/x86/intel_cht_int33fe.c b/drivers/platform/x86/intel_cht_int33fe.c
index d586bb22d7e8..863a792d9282 100644
--- a/drivers/platform/x86/intel_cht_int33fe.c
+++ b/drivers/platform/x86/intel_cht_int33fe.c
@@ -27,12 +27,21 @@ 
 
 #define EXPECTED_PTYPE		4
 
+enum {
+	INT33FE_NODE_FUSB302,
+	INT33FE_NODE_MAX17047,
+	INT33FE_NODE_PI3USB30532,
+	INT33FE_NODE_MAX,
+};
+
 struct cht_int33fe_data {
 	struct i2c_client *max17047;
 	struct i2c_client *fusb302;
 	struct i2c_client *pi3usb30532;
 	/* Contain a list-head must be per device */
 	struct device_connection connections[4];
+
+	struct fwnode_handle *node[INT33FE_NODE_MAX];
 };
 
 /*
@@ -73,6 +82,7 @@  static const struct property_entry max17047_props[] = {
 static int
 cht_int33fe_register_max17047(struct device *dev, struct cht_int33fe_data *data)
 {
+	struct fwnode_handle *fwnode = data->node[INT33FE_NODE_MAX17047];
 	struct i2c_client *max17047 = NULL;
 	struct i2c_board_info board_info;
 	int ret;
@@ -80,9 +90,7 @@  cht_int33fe_register_max17047(struct device *dev, struct cht_int33fe_data *data)
 	i2c_for_each_dev(&max17047, cht_int33fe_check_for_max17047);
 	if (max17047) {
 		/* Pre-existing i2c-client for the max17047, add device-props */
-		ret = device_add_properties(&max17047->dev, max17047_props);
-		if (ret)
-			return ret;
+		max17047->dev.fwnode->secondary = fwnode;
 		/* And re-probe to get the new device-props applied. */
 		ret = device_reprobe(&max17047->dev);
 		if (ret)
@@ -93,7 +101,7 @@  cht_int33fe_register_max17047(struct device *dev, struct cht_int33fe_data *data)
 	memset(&board_info, 0, sizeof(board_info));
 	strlcpy(board_info.type, "max17047", I2C_NAME_SIZE);
 	board_info.dev_name = "max17047";
-	board_info.properties = max17047_props;
+	board_info.fwnode = fwnode;
 	data->max17047 = i2c_acpi_new_device(dev, 1, &board_info);
 	if (IS_ERR(data->max17047))
 		return PTR_ERR(data->max17047);
@@ -109,6 +117,45 @@  static const struct property_entry fusb302_props[] = {
 	{ }
 };
 
+static const struct property_entry *props[] = {
+	[INT33FE_NODE_FUSB302]		= fusb302_props,
+	[INT33FE_NODE_MAX17047]		= max17047_props,
+	[INT33FE_NODE_PI3USB30532]	= NULL,
+};
+
+static void cht_int33fe_remove_nodes(struct cht_int33fe_data *data)
+{
+	int i;
+
+	for (i = 0; i < INT33FE_NODE_MAX; i++) {
+		fwnode_remove_software_node(data->node[i]);
+		data->node[i] = NULL;
+	}
+}
+
+static int cht_int33fe_add_nodes(struct cht_int33fe_data *data)
+{
+	struct fwnode_handle *fwnode;
+	int ret;
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(props); i++) {
+		fwnode = fwnode_create_software_node(props[i], NULL);
+		if (IS_ERR(fwnode)) {
+			ret = PTR_ERR(fwnode);
+			goto err_remove_nodes;
+		}
+		data->node[i] = fwnode;
+	}
+
+	return 0;
+
+err_remove_nodes:
+	cht_int33fe_remove_nodes(data);
+
+	return ret;
+}
+
 static int cht_int33fe_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
@@ -173,10 +220,14 @@  static int cht_int33fe_probe(struct platform_device *pdev)
 	if (!data)
 		return -ENOMEM;
 
+	ret = cht_int33fe_add_nodes(data);
+	if (ret)
+		return ret;
+
 	/* Work around BIOS bug, see comment on cht_int33fe_check_for_max17047 */
 	ret = cht_int33fe_register_max17047(dev, data);
 	if (ret)
-		return ret;
+		goto out_remove_nodes;
 
 	data->connections[0].endpoint[0] = "port0";
 	data->connections[0].endpoint[1] = "i2c-pi3usb30532-switch";
@@ -193,7 +244,7 @@  static int cht_int33fe_probe(struct platform_device *pdev)
 	memset(&board_info, 0, sizeof(board_info));
 	strlcpy(board_info.type, "typec_fusb302", I2C_NAME_SIZE);
 	board_info.dev_name = "fusb302";
-	board_info.properties = fusb302_props;
+	board_info.fwnode = data->node[INT33FE_NODE_FUSB302];
 	board_info.irq = fusb302_irq;
 
 	data->fusb302 = i2c_acpi_new_device(dev, 2, &board_info);
@@ -204,6 +255,7 @@  static int cht_int33fe_probe(struct platform_device *pdev)
 
 	memset(&board_info, 0, sizeof(board_info));
 	board_info.dev_name = "pi3usb30532";
+	board_info.fwnode = data->node[INT33FE_NODE_PI3USB30532];
 	strlcpy(board_info.type, "pi3usb30532", I2C_NAME_SIZE);
 
 	data->pi3usb30532 = i2c_acpi_new_device(dev, 3, &board_info);
@@ -224,6 +276,9 @@  static int cht_int33fe_probe(struct platform_device *pdev)
 
 	device_connections_remove(data->connections);
 
+out_remove_nodes:
+	cht_int33fe_remove_nodes(data);
+
 	return ret;
 }
 
@@ -236,6 +291,7 @@  static int cht_int33fe_remove(struct platform_device *pdev)
 	i2c_unregister_device(data->max17047);
 
 	device_connections_remove(data->connections);
+	cht_int33fe_remove_nodes(data);
 
 	return 0;
 }