linux-kernel - Re: [PATCH v4 1/2] mtd: hisilicon: add a new NAND controller driver for hisilicon hip04 Soc

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Message-ID: <547C6849.7060804@gmail.com>
Date:	Mon, 01 Dec 2014 21:08:25 +0800
From:	Zhou Wang <wangzhou.bry@...il.com>
To:	Brian Norris <computersforpeace@...il.com>
CC:	David Woodhouse <dwmw2@...radead.org>,
	linux-mtd@...ts.infradead.org, devicetree@...r.kernel.org,
	mark.rutland@....com, pawel.moll@....com,
	ijc+devicetree@...lion.org.uk, robh+dt@...nel.org,
	galak@...eaurora.org, caizhiyong@...wei.com,
	haojian.zhuang@...il.com, xuwei5@...ilicon.com,
	wangzhou1@...ilicon.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 1/2] mtd: hisilicon: add a new NAND controller driver
 for hisilicon hip04 Soc

On 2014年12月01日 17:25, Brian Norris wrote:
> I forgot to mention these comments:
>
> On Tue, Nov 04, 2014 at 08:47:00PM +0800, Zhou Wang wrote:
>> +static int hisi_nfc_remove(struct platform_device *pdev)
>> +{
>> +	struct hinfc_host *host = platform_get_drvdata(pdev);
>> +	struct mtd_info *mtd = &host->mtd;
>> +
>> +	nand_release(mtd);
>> +	dma_free_coherent(&pdev->dev, mtd->writesize + mtd->oobsize,
>> +			  host->buffer, host->dma_buffer);
>> +
>> +	return 0;
>> +}
>> +
>> +#ifdef CONFIG_PM_SLEEP
>> +static int hisi_nfc_suspend(struct platform_device *pdev,
>> +			       pm_message_t state)
>
> This is the wrong prototype. See struct dev_pm_ops.
>

My mistake here, will modify this, thanks a lot!!

>> +{
>> +	struct hinfc_host *host = platform_get_drvdata(pdev);
>> +
>> +	while ((hinfc_read(host, HINFC504_STATUS) & 0x1) == 0x0)
>> +		;
>> +
>> +	while ((hinfc_read(host, HINFC504_DMA_CTRL))
>> +		& HINFC504_DMA_CTRL_DMA_START)
>> +		_cond_resched();
>> +
>> +	return 0;
>> +}
>> +
>> +static int hisi_nfc_resume(struct platform_device *pdev)
>
> Same here.
>
>> +{
>> +	int cs;
>> +	struct hinfc_host *host = platform_get_drvdata(pdev);
>> +	struct nand_chip *chip = &host->chip;
>> +
>> +	for (cs = 0; cs < chip->numchips; cs++)
>> +		hisi_nfc_send_cmd_reset(host, cs);
>> +	hinfc_write(host, SET_HINFC504_PWIDTH(HINFC504_W_LATCH,
>> +		    HINFC504_R_LATCH, HINFC504_RW_LATCH), HINFC504_PWIDTH);
>> +
>> +	return 0;
>> +}
>> +#endif
>> +static SIMPLE_DEV_PM_OPS(hisi_nfc_pm_ops, hisi_nfc_suspend, hisi_nfc_resume);
>
> Brian
>

Thanks,
Zhou Wang


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