Re: [PATCH/RFT v2 1/3] thermal: rcar_thermal: add r8a77995 support

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Hi Kaneko-san,

On Fri, Mar 30, 2018 at 5:13 AM, Yoshihiro Kaneko <ykaneko0929@xxxxxxxxx> wrote:
> Add support for R-Car D3 (r8a77995) thermal sensor.
>
> Signed-off-by: Yoshihiro Kaneko <ykaneko0929@xxxxxxxxx>

Thanks for your patch!

> --- a/drivers/thermal/rcar_thermal.c
> +++ b/drivers/thermal/rcar_thermal.c
> @@ -58,10 +58,35 @@ struct rcar_thermal_common {
>         spinlock_t lock;
>  };
>
> +enum rcar_thermal_type {
> +       RCAR_THERMAL,
> +       RCAR_GEN2_THERMAL,
> +       RCAR_GEN3_THERMAL,
> +};
> +
> +struct rcar_thermal_chip {
> +       int use_of_thermal;

This can be a single bit:

    unsigned int use_of_thermal : 1;

> +       enum rcar_thermal_type type;

If you would add feature bits, you can get rid of rcar_thermal_type:

    unsigned int has_filonoff : 1;
    unsigned int has_enr : 1;
    unsigned int needs_suspend_resume : 1;

The number of interrupts can be stored here, too.

> +};
> +
> +static const struct rcar_thermal_chip rcar_thermal = {
> +       .use_of_thermal = 0,
> +       .type = RCAR_THERMAL,

.has_filonoff = 1,
.has_enr = 0,
...
.nirqs = 1,

> @@ -190,7 +222,8 @@ static int rcar_thermal_update_temp(struct rcar_thermal_priv *priv)
>          * enable IRQ
>          */
>         if (rcar_has_irq_support(priv)) {
> -               rcar_thermal_write(priv, FILONOFF, 0);
> +               if (priv->chip->type != RCAR_GEN3_THERMAL)

if (priv->chip->has_filonoff)

> @@ -438,6 +471,9 @@ static int rcar_thermal_probe(struct platform_device *pdev)
>         struct rcar_thermal_priv *priv;
>         struct device *dev = &pdev->dev;
>         struct resource *res, *irq;
> +       struct rcar_thermal_chip *chip = ((struct rcar_thermal_chip *)

I don't think the cast is needed.

> @@ -457,19 +493,35 @@ static int rcar_thermal_probe(struct platform_device *pdev)
>         pm_runtime_enable(dev);
>         pm_runtime_get_sync(dev);
>
> -       irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
> -       if (irq) {
> -               /*
> -                * platform has IRQ support.
> -                * Then, driver uses common registers
> -                * rcar_has_irq_support() will be enabled
> -                */
> -               res = platform_get_resource(pdev, IORESOURCE_MEM, mres++);
> -               common->base = devm_ioremap_resource(dev, res);
> -               if (IS_ERR(common->base))
> -                       return PTR_ERR(common->base);
> +       for (i = 0; i < nirq; i++) {

for (i = 0; i < priv->nirqs; i++) {

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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