linux-kernel - Re: [PATCH v4 1/4] soc: mediatek: Refine scpsys to support multiple platform

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Date:	Wed, 20 Jan 2016 17:14:04 +0800
From:	Yingjoe Chen <yingjoe.chen@...iatek.com>
To:	James Liao <jamesjj.liao@...iatek.com>
CC:	Matthias Brugger <matthias.bgg@...il.com>,
	Sascha Hauer <kernel@...gutronix.de>,
	Rob Herring <robh@...nel.org>, <srv_heupstream@...iatek.com>,
	<devicetree@...r.kernel.org>, Kevin Hilman <khilman@...nel.org>,
	<linux-kernel@...r.kernel.org>,
	<linux-mediatek@...ts.infradead.org>,
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v4 1/4] soc: mediatek: Refine scpsys to support multiple
 platform

On Wed, 2016-01-20 at 14:08 +0800, James Liao wrote:
> Refine scpsys driver common code to support multiple SoC / platform.
> 
> Signed-off-by: James Liao <jamesjj.liao@...iatek.com>
<...>
> diff --git a/drivers/soc/mediatek/mtk-scpsys.h b/drivers/soc/mediatek/mtk-scpsys.h
> new file mode 100644
> index 0000000..e435bc3
> --- /dev/null
> +++ b/drivers/soc/mediatek/mtk-scpsys.h
> @@ -0,0 +1,55 @@
> +#ifndef __DRV_SOC_MTK_H
> +#define __DRV_SOC_MTK_H
> +
> +enum clk_id {
> +	CLK_NONE,
> +	CLK_MM,
> +	CLK_MFG,
> +	CLK_VENC,
> +	CLK_VENC_LT,
> +	CLK_MAX,
> +};
> +
> +#define MAX_CLKS	2
> +
> +struct scp_domain_data {
> +	const char *name;
> +	u32 sta_mask;
> +	int ctl_offs;
> +	u32 sram_pdn_bits;
> +	u32 sram_pdn_ack_bits;
> +	u32 bus_prot_mask;
> +	enum clk_id clk_id[MAX_CLKS];
> +	bool active_wakeup;
> +};
> +
> +struct scp;
> +
> +struct scp_domain {
> +	struct generic_pm_domain genpd;
> +	struct scp *scp;
> +	struct clk *clk[MAX_CLKS];
> +	u32 sta_mask;
> +	void __iomem *ctl_addr;
> +	u32 sram_pdn_bits;
> +	u32 sram_pdn_ack_bits;
> +	u32 bus_prot_mask;
> +	bool active_wakeup;
> +	struct regulator *supply;
> +};
> +
> +struct scp {
> +	struct scp_domain *domains;
> +	struct genpd_onecell_data pd_data;
> +	struct device *dev;
> +	void __iomem *base;
> +	struct regmap *infracfg;
> +};
> +
> +struct scp *init_scp(struct platform_device *pdev,
> +			const struct scp_domain_data *scp_domain_data, int num);
> +
> +void mtk_register_power_domains(struct platform_device *pdev,
> +				struct scp *scp, int num);
> +
> +#endif /* __DRV_SOC_MTK_H */

After merge, only mtk-scpsys.c will use this file. I think it make sense
to just include them in mtk-scpsys.c. Also init_scp and
mtk_register_power_domains can be static now.

Joe.C