Prepare for supporting SM5504 in the extcon-sm5502 driver by replacing
enum sm5504_types with a struct sm5504_type that stores the chip-specific
definitions. This struct can then be defined separately for SM5504
without having to add if (type == TYPE_SM5504) everywhere in the code.

Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
---
Changes in v3: New patch to simplify diff on next patch
---
  drivers/extcon/extcon-sm5502.c | 64 +++++++++++++++++++++-------------
  drivers/extcon/extcon-sm5502.h |  4 ---
  2 files changed, 40 insertions(+), 28 deletions(-)

diff --git a/drivers/extcon/extcon-sm5502.c b/drivers/extcon/extcon-sm5502.c
index 9f40bb9f1f81..951f6ca4c479 100644
--- a/drivers/extcon/extcon-sm5502.c
+++ b/drivers/extcon/extcon-sm5502.c

@@ -40,17 +40,13 @@ struct sm5502_muic_info {
  	struct i2c_client *i2c;
  	struct regmap *regmap;
  
+	const struct sm5502_type *type;
  	struct regmap_irq_chip_data *irq_data;
-	struct muic_irq *muic_irqs;
-	unsigned int num_muic_irqs;
  	int irq;
  	bool irq_attach;
  	bool irq_detach;
  	struct work_struct irq_work;
  
-	struct reg_data *reg_data;
-	unsigned int num_reg_data;
-
  	struct mutex mutex;
  
  	/*

@@ -62,6 +58,17 @@ struct sm5502_muic_info {
  	struct delayed_work wq_detcable;
  };
  
+struct sm5502_type {
+	struct muic_irq *muic_irqs;
+	unsigned int num_muic_irqs;
+	const struct regmap_irq_chip *irq_chip;
+
+	struct reg_data *reg_data;
+	unsigned int num_reg_data;
+
+	int (*parse_irq)(struct sm5502_muic_info *info, int irq_type);
+};
+
  /* Default value of SM5502 register to bring up MUIC device. */
  static struct reg_data sm5502_reg_data[] = {
  	{

@@ -502,11 +509,11 @@ static irqreturn_t sm5502_muic_irq_handler(int irq, void *data)
  	struct sm5502_muic_info *info = data;
  	int i, irq_type = -1, ret;
  
-	for (i = 0; i < info->num_muic_irqs; i++)
-		if (irq == info->muic_irqs[i].virq)
-			irq_type = info->muic_irqs[i].irq;
+	for (i = 0; i < info->type->num_muic_irqs; i++)
+		if (irq == info->type->muic_irqs[i].virq)
+			irq_type = info->type->muic_irqs[i].irq;
  
-	ret = sm5502_parse_irq(info, irq_type);
+	ret = info->type->parse_irq(info, irq_type);