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Date: Fri, 5 Oct 2018 11:58:09 +0200
From: Boris Brezillon <boris.brezillon@bootlin.com>
To: <christophe.kerello@st.com>
Cc: <miquel.raynal@bootlin.com>, <richard@nod.at>, <dwmw2@infradead.org>,
 <computersforpeace@gmail.com>, <marek.vasut@gmail.com>,
 <robh+dt@kernel.org>, <mark.rutland@arm.com>,
 <linux-mtd@lists.infradead.org>, <linux-kernel@vger.kernel.org>,
 <devicetree@vger.kernel.org>, <linux-stm32@st-md-mailman.stormreply.com>
Subject: Re: [PATCH v2 2/3] mtd: rawnand: stm32_fmc2: add STM32 FMC2 NAND
 flash controller driver
Message-ID: <20181005115809.55356782@bbrezillon>
In-Reply-To: <1538732520-2800-3-git-send-email-christophe.kerello@st.com>
References: <1538732520-2800-1-git-send-email-christophe.kerello@st.com>
 <1538732520-2800-3-git-send-email-christophe.kerello@st.com>
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On Fri, 5 Oct 2018 11:41:59 +0200
<christophe.kerello@st.com> wrote:

> +struct stm32_fmc2 {

You should inherit from nand_controller even if the nand_chip already
embeds a dummy nand controller object.

	struct nand_controller base;

> +	struct stm32_fmc2_nand nand;
> +	struct device *dev;
> +	void __iomem *io_base;
> +	void __iomem *data_base[FMC2_MAX_CE];
> +	void __iomem *cmd_base[FMC2_MAX_CE];
> +	void __iomem *addr_base[FMC2_MAX_CE];
> +	phys_addr_t io_phys_addr;
> +	phys_addr_t data_phys_addr[FMC2_MAX_CE];
> +	struct clk *clk;
> +
> +	struct dma_chan *dma_tx_ch;
> +	struct dma_chan *dma_rx_ch;
> +	struct dma_chan *dma_ecc_ch;
> +	struct sg_table dma_data_sg;
> +	struct sg_table dma_ecc_sg;
> +	u8 *ecc_buf;
> +	int dma_ecc_len;
> +
> +	struct completion complete;
> +	struct completion dma_data_complete;
> +	struct completion dma_ecc_complete;
> +
> +	u8 cs_assigned;
> +	int cs_sel;
> +};