linux-kernel - Re: [PATCH RESEND 1/4] clk: clk-s2mps11: Refactor for including support for other MFD clocks

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Message-ID: <20131229221723.12054.40917@quantum>
Date:	Sun, 29 Dec 2013 14:17:23 -0800
From:	Mike Turquette <mturquette@...aro.org>
To:	Tushar Behera <tushar.behera@...aro.org>,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-samsung-soc@...r.kernel.org
Cc:	lee.jones@...aro.org, kgene.kim@...sung.com, patches@...aro.org
Subject: Re: [PATCH RESEND 1/4] clk: clk-s2mps11: Refactor for including support for
 other MFD clocks

Quoting Tushar Behera (2013-12-26 02:18:58)
> The clocks in S2MPS11 and S5M8767 are managed in the same way, baring
> a difference in the register offset. It would be better to update
> existing S2MPS11 driver to support the clocks in S5M8767, rather than
> creating an almost duplicate driver altogether.

Can you rebase patches #1 & #2 onto clk-next? They do not apply cleanly
as-is.

Regards,
Mike

> 
> Signed-off-by: Tushar Behera <tushar.behera@...aro.org>
> Reviewed-by: Tomasz Figa <t.figa@...sung.com>
> Reviewed-by: Yadwinder Singh Brar <yadi.brar@...sung.com>
> CC: Mike Turquette <mturquette@...aro.org>
> ---
>  drivers/clk/clk-s2mps11.c |   20 ++++++++++++++++----
>  1 file changed, 16 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/clk/clk-s2mps11.c b/drivers/clk/clk-s2mps11.c
> index 00a3abe..43e25bb 100644
> --- a/drivers/clk/clk-s2mps11.c
> +++ b/drivers/clk/clk-s2mps11.c
> @@ -48,6 +48,7 @@ struct s2mps11_clk {
>         struct clk_lookup *lookup;
>         u32 mask;
>         bool enabled;
> +       unsigned int reg;
>  };
>  
>  static struct s2mps11_clk *to_s2mps11_clk(struct clk_hw *hw)
> @@ -61,7 +62,7 @@ static int s2mps11_clk_prepare(struct clk_hw *hw)
>         int ret;
>  
>         ret = regmap_update_bits(s2mps11->iodev->regmap_pmic,
> -                               S2MPS11_REG_RTC_CTRL,
> +                                s2mps11->reg,
>                                  s2mps11->mask, s2mps11->mask);
>         if (!ret)
>                 s2mps11->enabled = true;
> @@ -74,7 +75,7 @@ static void s2mps11_clk_unprepare(struct clk_hw *hw)
>         struct s2mps11_clk *s2mps11 = to_s2mps11_clk(hw);
>         int ret;
>  
> -       ret = regmap_update_bits(s2mps11->iodev->regmap_pmic, S2MPS11_REG_RTC_CTRL,
> +       ret = regmap_update_bits(s2mps11->iodev->regmap_pmic, s2mps11->reg,
>                            s2mps11->mask, ~s2mps11->mask);
>  
>         if (!ret)
> @@ -155,6 +156,7 @@ static int s2mps11_clk_probe(struct platform_device *pdev)
>         struct sec_pmic_dev *iodev = dev_get_drvdata(pdev->dev.parent);
>         struct s2mps11_clk *s2mps11_clks, *s2mps11_clk;
>         struct device_node *clk_np = NULL;
> +       unsigned int s2mps11_reg;
>         int i, ret = 0;
>         u32 val;
>  
> @@ -169,13 +171,23 @@ static int s2mps11_clk_probe(struct platform_device *pdev)
>         if (IS_ERR(clk_np))
>                 return PTR_ERR(clk_np);
>  
> +       switch(platform_get_device_id(pdev)->driver_data) {
> +       case S2MPS11X:
> +               s2mps11_reg = S2MPS11_REG_RTC_CTRL;
> +               break;
> +       default:
> +               dev_err(&pdev->dev, "Invalid device type\n");
> +               return -EINVAL;
> +       };
> +
>         for (i = 0; i < S2MPS11_CLKS_NUM; i++, s2mps11_clk++) {
>                 s2mps11_clk->iodev = iodev;
>                 s2mps11_clk->hw.init = &s2mps11_clks_init[i];
>                 s2mps11_clk->mask = 1 << i;
> +               s2mps11_clk->reg = s2mps11_reg;
>  
>                 ret = regmap_read(s2mps11_clk->iodev->regmap_pmic,
> -                                 S2MPS11_REG_RTC_CTRL, &val);
> +                                 s2mps11_clk->reg, &val);
>                 if (ret < 0)
>                         goto err_reg;
>  
> @@ -241,7 +253,7 @@ static int s2mps11_clk_remove(struct platform_device *pdev)
>  }
>  
>  static const struct platform_device_id s2mps11_clk_id[] = {
> -       { "s2mps11-clk", 0},
> +       { "s2mps11-clk", S2MPS11X},
>         { },
>  };
>  MODULE_DEVICE_TABLE(platform, s2mps11_clk_id);
> -- 
> 1.7.9.5
> 
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