Hi,
Thanks for respinning this serie. It looks mostly good, but you still
have a quite significant number of checkpatch (--strict) warnings that
you should address.
On Sun, Feb 25, 2018 at 09:53:08PM +0800, hao_zhang wrote:
> +#define CAPTURE_IRQ_ENABLE_REG 0x0010
> +#define CFIE(ch) BIT(ch << 1 + 1)
> +#define CRIE(ch) BIT(ch << 1)
You should also put your argument between parentheses here (and in all
your other macros).
> +static const u16 div_m_table[] = {
> + 1,
> + 2,
> + 4,
> + 8,
> + 16,
> + 32,
> + 64,
> + 128,
> + 256
> +};
If this is just a power of two, you can use either the power of two /
ilog2 to switch back and forth, instead of using that table.
> +static int sun8i_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm,
> + struct pwm_state *state)
> +{
> + int ret;
> + struct sun8i_pwm_chip *sun8i_pwm = to_sun8i_pwm_chip(chip);
> + struct pwm_state cstate;
> +
> + pwm_get_state(pwm, &cstate);
> + if (!cstate.enabled) {
> + ret = clk_prepare_enable(sun8i_pwm->clk);
> + if (ret) {
> + dev_err(chip->dev, "Failed to enable PWM clock\n");
> + return ret;
> + }
> + }
> +
> + spin_lock(&sun8i_pwm->ctrl_lock);
What do you need that spinlock for? Can you use a mutex instead?
Thanks!
Maxime
--
Maxime Ripard, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com
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