[PATCH v4 2/9] mfd: cgbc: Add I2C platform data

["Thomas Richard (congatec GmbH)" <thomas.richard@bootlin.com>]

Define I2C platform data for each I2C bus in the cgbc MFD driver. Platform
data passes per-bus parameters to the I2C driver, rather than being defined
inside the i2c-cgbc driver itself. This makes the i2c-cgbc driver more
generic.

Signed-off-by: Thomas Richard (congatec GmbH) <thomas.richard@bootlin.com>
---
 drivers/mfd/cgbc-core.c  | 38 +++++++++++++++++++++++++++++---------
 include/linux/mfd/cgbc.h | 10 ++++++++++
 2 files changed, 39 insertions(+), 9 deletions(-)

diff --git a/drivers/mfd/cgbc-core.c b/drivers/mfd/cgbc-core.c
index 4a409234e66c..0cd9e6f888cb 100644
--- a/drivers/mfd/cgbc-core.c
+++ b/drivers/mfd/cgbc-core.c
@@ -55,6 +55,35 @@
 
 static struct platform_device *cgbc_pdev;
 
+static const struct cgbc_i2c_platform_data cgbc_i2c_gp_pdata = {
+	.name = "Congatec General Purpose I2C adapter",
+	.cgbc_bus_id = 0,
+};
+
+static const struct cgbc_i2c_platform_data cgbc_i2c_pm_pdata = {
+	.name  = "Congatec Power Management I2C adapter",
+	.cgbc_bus_id = 4,
+};
+
+static const struct mfd_cell cgbc_devs[] = {
+	MFD_CELL_NAME("cgbc-backlight"),
+	MFD_CELL_NAME("cgbc-gpio"),
+	MFD_CELL_NAME("cgbc-hwmon"),
+	{
+		.name = "cgbc-i2c",
+		.id = 1,
+		.platform_data = &cgbc_i2c_gp_pdata,
+		.pdata_size = sizeof(cgbc_i2c_gp_pdata),
+	},
+	{
+		.name = "cgbc-i2c",
+		.id = 2,
+		.platform_data = &cgbc_i2c_pm_pdata,
+		.pdata_size = sizeof(cgbc_i2c_pm_pdata),
+	},
+	MFD_CELL_NAME("cgbc-wdt"),
+};
+
 /* Wait the Board Controller is ready to receive some session commands */
 static int cgbc_wait_device(struct cgbc_device_data *cgbc)
 {
@@ -235,15 +264,6 @@ int cgbc_command(struct cgbc_device_data *cgbc, void *cmd, unsigned int cmd_size
 }
 EXPORT_SYMBOL_GPL(cgbc_command);
 
-static struct mfd_cell cgbc_devs[] = {
-	{ .name = "cgbc-wdt"	},
-	{ .name = "cgbc-gpio"	},
-	{ .name = "cgbc-i2c", .id = 1 },
-	{ .name = "cgbc-i2c", .id = 2 },
-	{ .name = "cgbc-hwmon"	},
-	{ .name = "cgbc-backlight" },
-};
-
 static int cgbc_map(struct cgbc_device_data *cgbc)
 {
 	struct device *dev = cgbc->dev;
diff --git a/include/linux/mfd/cgbc.h b/include/linux/mfd/cgbc.h
index 91f501e76c8f..4b6e41b9ca4a 100644
--- a/include/linux/mfd/cgbc.h
+++ b/include/linux/mfd/cgbc.h
@@ -41,4 +41,14 @@ struct cgbc_device_data {
 int cgbc_command(struct cgbc_device_data *cgbc, void *cmd, unsigned int cmd_size,
 		 void *data, unsigned int data_size, u8 *status);
 
+/**
+ * struct cgbc_i2c_platform_data - Platform data of the CGBC I2C driver
+ * @name:		I2C adapter name
+ * @cgbc_bus_id:	I2C bus ID (from Board Controller point of view)
+ */
+struct cgbc_i2c_platform_data {
+	const char *name;
+	int cgbc_bus_id;
+};
+
 #endif /*_LINUX_MFD_CGBC_H_*/

-- 
2.53.0