On Wed, Nov 20, 2013 at 03:12:08PM +0100, Krzysztof Kozlowski wrote:
> +static irqreturn_t max14577_irq_thread(int irq, void *data)
> +{
> + struct max14577 *max14577 = data;
> + u8 irq_reg[MAX14577_IRQ_REGS_NUM] = {0};
> + u8 tmp_irq_reg[MAX14577_IRQ_REGS_NUM] = {};
> + int i, cur_irq;
> +
> + max14577_bulk_read(max14577->regmap, MAX14577_REG_INT1,
> + &tmp_irq_reg[MAX14577_IRQ_INT1],
> + MAX14577_IRQ_REGS_NUM);
All this interrupt handling looks like a straight copy of the regmap
code?
> +int max14577_irq_resume(struct max14577 *max14577)
> +{
> + int ret = 0;
> +
> + if (max14577->irq && max14577->irq_domain)
> + ret = max14577_irq_thread(0, max14577);
Are you sure that this is not going to race nastily if the interrupt
goes off during resume?
> +
> + return ret >= 0 ? 0 : ret;
This check isn't a triumph of legibility.
> + if (IS_ERR_OR_NULL(pdata)) {
> + dev_err(&i2c->dev, "No platform data found: %ld\n",
> + PTR_ERR(pdata));
> + return -EINVAL;
> + }
Why IS_ERR_OR_NULL().
> +#else
> +#define max14577_suspend NULL
> +#define max14577_resume NULL
> +#endif /* CONFIG_PM */
You don't need these since you use SIMPLE_DEV_PM_OPS().
> +#else
> +#define max14577_dt_match NULL
> +#endif
Similarly here.
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