linux-kernel - Re: [PATCH v2 4/6] soc: mediatek: devapc: rename variable for new IC support

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Message-ID: <1617861501.8874.4.camel@mtksdccf07>
Date:   Thu, 8 Apr 2021 13:58:21 +0800
From:   Nina Wu <nina-cm.wu@...iatek.com>
To:     Matthias Brugger <matthias.bgg@...il.com>
CC:     Rob Herring <robh+dt@...nel.org>,
        Zhen Lei <thunder.leizhen@...wei.com>,
        Neal Liu <neal.liu@...iatek.com>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>,
        <srv_heupstream@...iatek.com>, <Jackson-kt.Chang@...iatek.com>
Subject: Re: [PATCH v2 4/6] soc: mediatek: devapc: rename variable for new
 IC support

Hi, Matthias

On Tue, 2021-04-06 at 15:43 +0200, Matthias Brugger wrote:
> Regarding the commit subject:
> "soc: mediatek: devapc: rename variable for new IC support"
> maybe something like:
> "soc: mediatek: devapc: rename register variable infra_base"
> 
> Other then that looks good to me.
> 

OK. I will fix it in the next version.

Thanks

> On 01/04/2021 08:38, Nina Wu wrote:
> > From: Nina Wu <Nina-CM.Wu@...iatek.com>
> > 
> > For new ICs, there are multiple devapc HWs for different subsys.
> > For example, there is devapc respectively for infra, peri, peri2, etc.
> > So we rename the variable 'infra_base' to 'base' for code readability.
> > 
> > Signed-off-by: Nina Wu <Nina-CM.Wu@...iatek.com>
> > ---
> >  drivers/soc/mediatek/mtk-devapc.c | 24 ++++++++++++------------
> >  1 file changed, 12 insertions(+), 12 deletions(-)
> > 
> > diff --git a/drivers/soc/mediatek/mtk-devapc.c b/drivers/soc/mediatek/mtk-devapc.c
> > index 68c3e35..bcf6e3c 100644
> > --- a/drivers/soc/mediatek/mtk-devapc.c
> > +++ b/drivers/soc/mediatek/mtk-devapc.c
> > @@ -45,7 +45,7 @@ struct mtk_devapc_data {
> >  
> >  struct mtk_devapc_context {
> >  	struct device *dev;
> > -	void __iomem *infra_base;
> > +	void __iomem *base;
> >  	u32 vio_idx_num;
> >  	struct clk *infra_clk;
> >  	const struct mtk_devapc_data *data;
> > @@ -56,7 +56,7 @@ static void clear_vio_status(struct mtk_devapc_context *ctx)
> >  	void __iomem *reg;
> >  	int i;
> >  
> > -	reg = ctx->infra_base + ctx->data->vio_sta_offset;
> > +	reg = ctx->base + ctx->data->vio_sta_offset;
> >  
> >  	for (i = 0; i < VIO_MOD_TO_REG_IND(ctx->vio_idx_num - 1); i++)
> >  		writel(GENMASK(31, 0), reg + 4 * i);
> > @@ -71,7 +71,7 @@ static void mask_module_irq(struct mtk_devapc_context *ctx, bool mask)
> >  	u32 val;
> >  	int i;
> >  
> > -	reg = ctx->infra_base + ctx->data->vio_mask_offset;
> > +	reg = ctx->base + ctx->data->vio_mask_offset;
> >  
> >  	if (mask)
> >  		val = GENMASK(31, 0);
> > @@ -113,11 +113,11 @@ static int devapc_sync_vio_dbg(struct mtk_devapc_context *ctx)
> >  	int ret;
> >  	u32 val;
> >  
> > -	pd_vio_shift_sta_reg = ctx->infra_base +
> > +	pd_vio_shift_sta_reg = ctx->base +
> >  			       ctx->data->vio_shift_sta_offset;
> > -	pd_vio_shift_sel_reg = ctx->infra_base +
> > +	pd_vio_shift_sel_reg = ctx->base +
> >  			       ctx->data->vio_shift_sel_offset;
> > -	pd_vio_shift_con_reg = ctx->infra_base +
> > +	pd_vio_shift_con_reg = ctx->base +
> >  			       ctx->data->vio_shift_con_offset;
> >  
> >  	/* Find the minimum shift group which has violation */
> > @@ -159,8 +159,8 @@ static void devapc_extract_vio_dbg(struct mtk_devapc_context *ctx)
> >  	void __iomem *vio_dbg0_reg;
> >  	void __iomem *vio_dbg1_reg;
> >  
> > -	vio_dbg0_reg = ctx->infra_base + ctx->data->vio_dbg0_offset;
> > -	vio_dbg1_reg = ctx->infra_base + ctx->data->vio_dbg1_offset;
> > +	vio_dbg0_reg = ctx->base + ctx->data->vio_dbg0_offset;
> > +	vio_dbg1_reg = ctx->base + ctx->data->vio_dbg1_offset;
> >  
> >  	vio_dbgs.vio_dbg0 = readl(vio_dbg0_reg);
> >  	vio_dbgs.vio_dbg1 = readl(vio_dbg1_reg);
> > @@ -198,7 +198,7 @@ static irqreturn_t devapc_violation_irq(int irq_number, void *data)
> >   */
> >  static void start_devapc(struct mtk_devapc_context *ctx)
> >  {
> > -	writel(BIT(31), ctx->infra_base + ctx->data->apc_con_offset);
> > +	writel(BIT(31), ctx->base + ctx->data->apc_con_offset);
> >  
> >  	mask_module_irq(ctx, false);
> >  }
> > @@ -210,7 +210,7 @@ static void stop_devapc(struct mtk_devapc_context *ctx)
> >  {
> >  	mask_module_irq(ctx, true);
> >  
> > -	writel(BIT(2), ctx->infra_base + ctx->data->apc_con_offset);
> > +	writel(BIT(2), ctx->base + ctx->data->apc_con_offset);
> >  }
> >  
> >  static const struct mtk_devapc_data devapc_mt6779 = {
> > @@ -249,8 +249,8 @@ static int mtk_devapc_probe(struct platform_device *pdev)
> >  	ctx->data = of_device_get_match_data(&pdev->dev);
> >  	ctx->dev = &pdev->dev;
> >  
> > -	ctx->infra_base = of_iomap(node, 0);
> > -	if (!ctx->infra_base)
> > +	ctx->base = of_iomap(node, 0);
> > +	if (!ctx->base)
> >  		return -EINVAL;
> >  
> >  	if (of_property_read_u32(node, "vio_idx_num", &ctx->vio_idx_num))
> >