linux-kernel - Re: [PATCH v2 2/2] phy: intel-lgm-emmc: Add support for eMMC PHY

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Date:   Tue, 20 Aug 2019 16:59:21 +0300
From:   Andy Shevchenko <andriy.shevchenko@...el.com>
To:     "Ramuthevar,Vadivel MuruganX" 
        <vadivel.muruganx.ramuthevar@...ux.intel.com>
Cc:     kishon@...com, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, cheol.yong.kim@...el.com,
        qi-ming.wu@...el.com, peter.harliman.liem@...el.com
Subject: Re: [PATCH v2 2/2] phy: intel-lgm-emmc: Add support for eMMC PHY

On Tue, Aug 20, 2019 at 04:56:02PM +0300, Andy Shevchenko wrote:
> On Tue, Aug 20, 2019 at 06:31:33PM +0800, Ramuthevar,Vadivel MuruganX wrote:

> > +#define DR_TY_50OHM(x)		((~(x) << 28) & DR_TY_MASK)
> 
> For consistency it should be
> 
> #define DR_TY_SHIFT(x)		(((x) << 28) & DR_TY_MASK)
> 
> with explanation about 50 Ohm in the code below.

> > +	/* Drive impedance: 50 Ohm */
> 
> Nice, you have already a comment here. Just use DR_TY_SHIFT(1)

It should be DR_TY_SHIFT(6) now since I dropped the negation.

-- 
With Best Regards,
Andy Shevchenko