linux-kernel - Re: [PATCH v8 5/7] mtd: nand: gpmi: add GPMI NAND support for i.MX7D

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Message-ID: <20160123225842.GI24744@localhost>
Date:	Sat, 23 Jan 2016 14:58:42 -0800
From:	Brian Norris <computersforpeace@...il.com>
To:	Han Xu <b45815@...escale.com>
Cc:	shijie.huang@....com, dwmw2@...radead.org,
	boris.brezillon@...e-electrons.com, fabio.estevam@...escale.com,
	hofrat@...dl.org, linux-mtd@...ts.infradead.org,
	linux-kernel@...r.kernel.org, vinod.koul@...el.com,
	dan.j.williams@...el.com, dmaengine@...r.kernel.org,
	devicetree@...r.kernel.org, Rob Herring <robh+dt@...nel.org>
Subject: Re: [PATCH v8 5/7] mtd: nand: gpmi: add GPMI NAND support for i.MX7D

On Wed, Dec 02, 2015 at 04:47:44PM -0600, Han Xu wrote:
> support GPMI NAND on i.MX7D
> 
> Signed-off-by: Han Xu <b45815@...escale.com>
> ---
>  drivers/mtd/nand/gpmi-nand/bch-regs.h  | 14 +++++++-------
>  drivers/mtd/nand/gpmi-nand/gpmi-lib.c  | 10 ++++++----
>  drivers/mtd/nand/gpmi-nand/gpmi-nand.c | 27 ++++++++++++++++++++++-----
>  drivers/mtd/nand/gpmi-nand/gpmi-nand.h |  7 +++++--
>  4 files changed, 40 insertions(+), 18 deletions(-)
> 
> diff --git a/drivers/mtd/nand/gpmi-nand/bch-regs.h b/drivers/mtd/nand/gpmi-nand/bch-regs.h
> index 05bb91f..53e58bc 100644
> --- a/drivers/mtd/nand/gpmi-nand/bch-regs.h
> +++ b/drivers/mtd/nand/gpmi-nand/bch-regs.h

...

> @@ -575,6 +581,10 @@ static char *extra_clks_for_mx6q[GPMI_CLK_MAX] = {
>  	"gpmi_apb", "gpmi_bch", "gpmi_bch_apb", "per1_bch",
>  };
>  
> +static char *extra_clks_for_mx7d[GPMI_CLK_MAX] = {
> +	"gpmi_bch_apb",
> +};
> +
>  static int gpmi_get_clks(struct gpmi_nand_data *this)
>  {
>  	struct resources *r = &this->resources;
> @@ -592,6 +602,8 @@ static int gpmi_get_clks(struct gpmi_nand_data *this)
>  	/* Get extra clocks */
>  	if (GPMI_IS_MX6(this))
>  		extra_clks = extra_clks_for_mx6q;
> +	if (GPMI_IS_MX7(this))
> +		extra_clks = extra_clks_for_mx7d;
>  	if (!extra_clks)
>  		return 0;
>  

...

It looks like these clock names were never documented. Shouldn't this be
part of Documentation/devicetree/bindings/mtd/gpmi-nand.txt?

Otherwise, the patch looks good to me.

Brian