[PATCH v2 4/6] soc: mediatek: Add SMI driver

[Yong Wu]

On Thu, 2015-05-21 at 09:30 +0200, Matthias Brugger wrote:
> 2015-05-21 8:16 GMT+02:00 Yong Wu <yong.wu at mediatek.com>:
> > Hi Matthias,
> >      Thanks very much for your suggestion.
> >      Abort the smi clock name, Could you help check below.
> >      The others I will improve in next time.
> >
> > On Tue, 2015-05-19 at 13:14 +0200, Matthias Brugger wrote:
> >> 2015-05-15 11:43 GMT+02:00 Yong Wu <yong.wu at mediatek.com>:
> >> >     This patch add SMI(Smart Multimedia Interface) driver. This driver is
> >> > responsible to enable/disable iommu and control the clocks of each local arbiter.
> >> >
> > [snip]
> >> > +
> >> > +#define SMI_LARB_MMU_EN                (0xf00)
> >> > +#define F_SMI_MMU_EN(port)     (1 << (port))
> >> > +
> >> > +enum {
> >> > +       MTK_CLK_APB,
> >> > +       MTK_CLK_SMI,
> >> > +       MTK_CLK_MAX,
> >>
> >> Maybe add something like:
> >> MTK_CLK_FIRST = MTK_CLK_APB,
> >> to make the for loops better readable.
> >>
> > Then, Is it like this? :
> >  enum {
> >         MTK_CLK_FIRST = MTK_CLK_APB,
> >         MTK_CLK_SMI,
> >         MTK_CLK_MAX,
> >  }
> > or the CLK_SMI also need MTK_CLK_SECOND = MTK_CLK_SMI.
> 
> 
> something like:
> enum {
>          MTK_CLK_FIRST,
>          MTK_CLK_APB = MTK_CLK_FIRST,
>          MTK_CLK_SMI,
>          MTK_CLK_LAST,
> }
> 
> So you can rewrite the for loop:
> if (i = MTK_CLK_FIRST; i < MTK_CLK_LAST; i++)
Get it.
Thanks very much.
> 
> Regards,
> Matthias
> 
> >> > +};
> >> > +
> >> > +struct mtk_smi_common {
> >> > +       void __iomem            *base;
> >>
> >> That seems to be never used. Please delete it.
> >>
> >> > +       struct clk              *clk[MTK_CLK_MAX];
> >> > +};
> >> > +
> >> > +struct mtk_smi_larb {
> >> > +       void __iomem            *base;
> >> > +       spinlock_t              portlock; /* lock for config port */
> >> > +       struct clk              *clk[MTK_CLK_MAX];
> >> > +       struct device           *smi;
> >> > +};
> >> > +
> >> Thanks,
> >> Matthias
> >
> >
> 
> 
>