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From: Yauhen Kharuzhy <jekhor@gmail.com>
To: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: linux-kernel@vger.kernel.org,
	MyungJoo Ham <myungjoo.ham@samsung.com>,
	Chanwoo Choi <cw00.choi@samsung.com>,
	Hans de Goede <hdegoede@redhat.com>
Subject: Re: [PATCH v2 1/2] extcon-intel-cht-wc: Make charger detection co-existed with OTG host mode
Date: Wed, 20 Feb 2019 23:46:55 +0300	[thread overview]
Message-ID: <20190220204655.GB23567@jeknote.loshitsa1.net> (raw)
In-Reply-To: <20190220124206.GP9224@smile.fi.intel.com>

On Wed, Feb 20, 2019 at 02:42:06PM +0200, Andy Shevchenko wrote:
> On Wed, Feb 20, 2019 at 12:24:40AM +0300, Yauhen Kharuzhy wrote:
> > Whiskey Cove Cherry Trail PMIC requires disabling OTG host mode before
> > of charger detection procedure. Do this by manipulationg of CHGRCTRL1
> > register.
> > 
> > Source: APCI DSDT code of Lenovo Yoga Book YB1-X91L and open-sourced
> > Intel's drivers.
> 
> Some minor comments below.
> 
> Otherwise,
> 
> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> 
> > -#define CHT_WC_CHGRCTRL1		0x5e17
> > +#define CHT_WC_CHGRCTRL1			0x5e17
> 
> Not related change?

just alignment, yes.

> 
> > +#define CHT_WC_CHGRCTRL1_DBPEN_MASK		BIT(7)
> 
> Drop the _MASK, it's one bit anyway.
OK.

> 
> > +#define CHT_WC_CHGRCTRL1_OTGMODE		BIT(6)
> > +#define CHT_WC_CHGRCTRL1_FTEMP_EVENT		BIT(5)
> > +#define CHT_WC_CHGRCTRL1_FUSB_INLMT_1500	BIT(4)
> > +#define CHT_WC_CHGRCTRL1_FUSB_INLMT_900		BIT(3)
> > +#define CHT_WC_CHGRCTRL1_FUSB_INLMT_500		BIT(2)
> > +#define CHT_WC_CHGRCTRL1_FUSB_INLMT_150		BIT(1)
> > +#define CHT_WC_CHGRCTRL1_FUSB_INLMT_100		BIT(0)
> 
> I think better to keep ascending order.

OK.

> 
> > +static void cht_wc_extcon_set_otgmode(struct cht_wc_extcon_data *ext,
> > +				      bool enable)
> > +{
> > +	unsigned int chgrctrl1;
> > +	int ret;
> > +
> > +	ret = regmap_read(ext->regmap, CHT_WC_CHGRCTRL1, &chgrctrl1);
> > +	if (ret) {
> > +		dev_err(ext->dev, "Error reading CHGRCTRL1 reg: %d\n", ret);
> > +		return;
> > +	}
> > +
> > +	if (enable)
> > +		chgrctrl1 |= CHT_WC_CHGRCTRL1_OTGMODE;
> > +	else
> > +		chgrctrl1 &= ~(CHT_WC_CHGRCTRL1_OTGMODE);
> 
> Redundant parens.

Hmm... Why I didn't use regmap_update_bits() here... I will simplify this
piece with it.

Thanks!

-- 
Yauhen Kharuzhy

  reply	other threads:[~2019-02-20 20:47 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-19 21:24 [PATCH v2 0/2] extcon: Intel Cherry Trail Whiskey Cove PMIC and external charger tweaks Yauhen Kharuzhy
2019-02-19 21:24 ` [PATCH v2 1/2] extcon-intel-cht-wc: Make charger detection co-existed with OTG host mode Yauhen Kharuzhy
2019-02-20 12:42   ` Andy Shevchenko
2019-02-20 20:46     ` Yauhen Kharuzhy [this message]
2019-02-19 21:24 ` [PATCH v2 2/2] extcon intel-cht-wc: Enable external charger Yauhen Kharuzhy
2019-02-20 13:08   ` Andy Shevchenko
2019-02-20 15:53   ` Hans de Goede
2019-02-20 21:24     ` Yauhen Kharuzhy
2019-02-22  9:18       ` Hans de Goede

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