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SubjectRe: [PATCH v3 2/3] extcon: sm5502: Refactor driver to use chip-specific struct
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On 21. 6. 2. 오전 5:00, Stephan Gerhold wrote:
> 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);

Looks good to me. But there is only one comment.
Need to check the 'parse_irq' as following:

If you agree this suggestion, I'll apply with following changes by myself:

if (!info->type->parse_irq) {
dev_err(info->dev, "failed to handle irq due to parse_irq\n",
return IRQ_NONE;
}


(snip)

--
Best Regards,
Samsung Electronics
Chanwoo Choi

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