[PATCH v4 1/4] fu540: prci: add request and free clock handlers

[Rick Chen]

Hi Sagar,

> From: Sagar Shrikant Kadam [mailto:sagar.kadam at sifive.com]
> Sent: Sunday, June 21, 2020 9:10 PM
> To: u-boot at lists.denx.de
> Cc: Rick Jian-Zhi Chen(陳建志); lukma at denx.de; bmeng.cn at gmail.com; jagan at amarulasolutions.com; pragnesh.patel at sifive.com; anup.patel at wdc.com; sjg at chromium.org; seanga2 at gmail.com; Sagar Shrikant Kadam
> Subject: [PATCH v4 1/4] fu540: prci: add request and free clock handlers
>
> Add clk_request handler to check if a valid clock is requested.
> Here clk_free handler is added for debug purpose which will display details of clock passed to clk_free.
>
> Signed-off-by: Sagar Shrikant Kadam <sagar.kadam at sifive.com>
> Reviewed-by: Pragnesh Patel <Pragnesh.patel at sifive.com>
> ---

This v4 series still have some conflicts with master.
Please check about it.

Applying: fu540: prci: add request and free clock handlers
Applying: riscv: dts: hifive-unleashed-a00: add cpu aliases
Applying: riscv: cpu: fixes to display proper CPU features
error: patch failed: drivers/cpu/riscv_cpu.c:38
error: drivers/cpu/riscv_cpu.c: patch does not apply
Patch failed at 0003 riscv: cpu: fixes to display proper CPU features

Thanks,
Rick

>  drivers/clk/sifive/fu540-prci.c | 21 +++++++++++++++++++++
>  1 file changed, 21 insertions(+)
>
> diff --git a/drivers/clk/sifive/fu540-prci.c b/drivers/clk/sifive/fu540-prci.c index fe6e0d4..9a9ff6b 100644
> --- a/drivers/clk/sifive/fu540-prci.c
> +++ b/drivers/clk/sifive/fu540-prci.c
> @@ -686,6 +686,25 @@ static ulong sifive_fu540_prci_set_rate(struct clk *clk, ulong rate)
>         return rate;
>  }
>
> +static int sifive_fu540_prci_clk_request(struct clk *clk) {
> +       debug("%s(clk=%p) (dev=%p, id=%lu)\n", __func__, clk, clk->dev,
> +             clk->id);
> +
> +       if (clk->id >= ARRAY_SIZE(__prci_init_clocks))
> +               return -EINVAL;
> +
> +       return 0;
> +}
> +
> +static int sifive_fu540_prci_clk_free(struct clk *clk) {
> +       debug("%s(clk=%p) (dev=%p, id=%lu)\n", __func__, clk, clk->dev,
> +             clk->id);
> +
> +       return 0;
> +}
> +
>  static int sifive_fu540_prci_enable(struct clk *clk)  {
>         struct __prci_clock *pc;
> @@ -755,6 +774,8 @@ static struct clk_ops sifive_fu540_prci_ops = {
>         .get_rate = sifive_fu540_prci_get_rate,
>         .enable = sifive_fu540_prci_enable,
>         .disable = sifive_fu540_prci_disable,
> +       .request  = sifive_fu540_prci_clk_request,
> +       .rfree    = sifive_fu540_prci_clk_free,
>  };
>
>  static const struct udevice_id sifive_fu540_prci_ids[] = {
> --
> 2.7.4
>