linux-kernel - RE: [PATCH v3 2/2] extcon-axp288: Add axp288 extcon driver support

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Date:	Mon, 27 Apr 2015 13:19:53 +0000
From:	"Pallala, Ramakrishna" <ramakrishna.pallala@...el.com>
To:	Chanwoo Choi <cw00.choi@...sung.com>
CC:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Lee Jones <lee.jones@...aro.org>,
	Samuel Ortiz <sameo@...ux.intel.com>,
	Carlo Caione <carlo@...one.org>,
	Jacob Pan <jacob.jun.pan@...ux.intel.com>
Subject: RE: [PATCH v3 2/2] extcon-axp288: Add axp288 extcon driver support

Hi Choi,

Please see my response below.

> >>
> >>> +		ret = PTR_ERR(info->otg);
> >>> +		return ret;
> >>> +	}
> >>> +
> >>> +	for (i = 0; i < EXTCON_IRQ_END; i++) {
> >>> +		pirq = platform_get_irq(pdev, i);
> >>> +		info->irq[i] = regmap_irq_get_virq(info->regmap_irqc, pirq);
> >>> +		if (info->irq[i] < 0) {
> >>> +			dev_warn(&pdev->dev,
> >>> +				"regmap_irq get virq failed for IRQ %d: %d\n",
> >>> +				pirq, info->irq[i]);
> >>> +			info->irq[i] = -1;
> >>> +			goto intr_reg_failed;
> >>> +		}
> >>
> >> Need to add blank line
> > Not sure how it came here...i don't see the line in vim
> 
> I think that need the blank line between '}' and devm_request_threaded_irq()
> sentence.
Ok.

> >>> +
> >>> +	/* Unmask VBUS interrupt */
> >>> +	regmap_write(info->regmap, AXP288_PWRSRC_IRQ_CFG_REG,
> >>> +						PWRSRC_IRQ_CFG_MASK);
> >>> +	regmap_update_bits(info->regmap, AXP288_BC_GLOBAL_REG,
> >>> +						BC_GLOBAL_RUN, 0);
> >>> +	/* Unmask the BC1.2 complte interrupts */
> >>> +	regmap_write(info->regmap, AXP288_BC12_IRQ_CFG_REG,
> >> BC12_IRQ_CFG_MASK);
> >>> +	/* Enable the charger detection logic */
> >>> +	regmap_update_bits(info->regmap, AXP288_BC_GLOBAL_REG,
> >>> +					BC_GLOBAL_RUN, BC_GLOBAL_RUN);
> >>
> >> I think that you better to move the initialization code before extcon
> registration.
> >> The initialization should be executed before extcon and interrupt registration.
> > My intention is to enable the interrupts once after setting all the interrupt and
> extcon handlers.
> 
> OK.
> But, I'd like you to add following functions to include the init code for enabling
> interrupt.
> 	axp288_extcon_enable_irq() or axp288_extcon_init()
> 
Ok I will move the interrupt enabling settings to axp288_extcon_enable_irq()

One more thing, mfd cell changes are already merged by Lee Jones so I will only push the
extcon-axp288 driver patch under v4.  Hope this is ok...

Thanks,
Ram
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