From: Boris Brezillon <boris.brezillon@bootlin.com>
To: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Wenyou Yang <wenyou.yang@microchip.com>,
Josh Wu <rainyfeeling@outlook.com>,
Tudor Ambarus <Tudor.Ambarus@microchip.com>,
Richard Weinberger <richard@nod.at>,
David Woodhouse <dwmw2@infradead.org>,
Brian Norris <computersforpeace@gmail.com>,
Marek Vasut <marek.vasut@gmail.com>,
Nicolas Ferre <nicolas.ferre@microchip.com>,
Alexandre Belloni <alexandre.belloni@bootlin.com>,
Kamal Dasu <kdasu.kdev@gmail.com>,
Masahiro Yamada <yamada.masahiro@socionext.com>,
Han Xu <han.xu@nxp.com>, Harvey Hunt <harveyhuntnexus@gmail.com>,
Vladimir Zapolskiy <vz@mleia.com>,
Sylvain Lemieux <slemieux.tyco@gmail.com>,
Xiaolei Li <xiaolei.li@mediatek.com>,
Matthias Brugger <matthias.bgg@gmail.com>,
Maxime Ripard <maxime.ripard@bootlin.com>,
Chen-Yu Tsai <wens@csie.org>,
Marc Gonzalez <marc.w.gonzalez@free.fr>,
Mans Rullgard <mans@mansr.com>, Stefan Agner <stefan@agner.ch>,
linux-mtd@lists.infradead.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org,
bcm-kernel-feedback-list@broadcom.com,
linux-mediatek@lists.infradead.org
Subject: Re: [PATCH v4 04/35] mtd: rawnand: denali: convert to nand_scan()
Date: Sat, 21 Jul 2018 08:46:27 +0200 [thread overview]
Message-ID: <20180721084627.3c87f4a9@bbrezillon> (raw)
In-Reply-To: <20180720151527.16038-5-miquel.raynal@bootlin.com>
On Fri, 20 Jul 2018 17:14:56 +0200
Miquel Raynal <miquel.raynal@bootlin.com> wrote:
> Two helpers have been added to the core to make ECC-related
> configuration between the detection phase and the final NAND scan. Use
> these hooks and convert the driver to just use nand_scan() instead of
> both nand_scan_ident() and nand_scan_tail().
>
> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Boris Brezillon <boris.brezillon@bootlin.com>
> ---
> drivers/mtd/nand/raw/denali.c | 138 +++++++++++++++++++++++-------------------
> 1 file changed, 77 insertions(+), 61 deletions(-)
>
> diff --git a/drivers/mtd/nand/raw/denali.c b/drivers/mtd/nand/raw/denali.c
> index 4d53f41ada08..2fa92c297a66 100644
> --- a/drivers/mtd/nand/raw/denali.c
> +++ b/drivers/mtd/nand/raw/denali.c
> @@ -1205,62 +1205,12 @@ static int denali_multidev_fixup(struct denali_nand_info *denali)
> return 0;
> }
>
> -int denali_init(struct denali_nand_info *denali)
> +static int denali_attach_chip(struct nand_chip *chip)
> {
> - struct nand_chip *chip = &denali->nand;
> struct mtd_info *mtd = nand_to_mtd(chip);
> - u32 features = ioread32(denali->reg + FEATURES);
> + struct denali_nand_info *denali = mtd_to_denali(mtd);
> int ret;
>
> - mtd->dev.parent = denali->dev;
> - denali_hw_init(denali);
> -
> - init_completion(&denali->complete);
> - spin_lock_init(&denali->irq_lock);
> -
> - denali_clear_irq_all(denali);
> -
> - ret = devm_request_irq(denali->dev, denali->irq, denali_isr,
> - IRQF_SHARED, DENALI_NAND_NAME, denali);
> - if (ret) {
> - dev_err(denali->dev, "Unable to request IRQ\n");
> - return ret;
> - }
> -
> - denali_enable_irq(denali);
> - denali_reset_banks(denali);
> -
> - denali->active_bank = DENALI_INVALID_BANK;
> -
> - nand_set_flash_node(chip, denali->dev->of_node);
> - /* Fallback to the default name if DT did not give "label" property */
> - if (!mtd->name)
> - mtd->name = "denali-nand";
> -
> - chip->select_chip = denali_select_chip;
> - chip->read_byte = denali_read_byte;
> - chip->write_byte = denali_write_byte;
> - chip->read_word = denali_read_word;
> - chip->cmd_ctrl = denali_cmd_ctrl;
> - chip->dev_ready = denali_dev_ready;
> - chip->waitfunc = denali_waitfunc;
> -
> - if (features & FEATURES__INDEX_ADDR) {
> - denali->host_read = denali_indexed_read;
> - denali->host_write = denali_indexed_write;
> - } else {
> - denali->host_read = denali_direct_read;
> - denali->host_write = denali_direct_write;
> - }
> -
> - /* clk rate info is needed for setup_data_interface */
> - if (denali->clk_rate && denali->clk_x_rate)
> - chip->setup_data_interface = denali_setup_data_interface;
> -
> - ret = nand_scan_ident(mtd, denali->max_banks, NULL);
> - if (ret)
> - goto disable_irq;
> -
> if (ioread32(denali->reg + FEATURES) & FEATURES__DMA)
> denali->dma_avail = 1;
>
> @@ -1293,7 +1243,7 @@ int denali_init(struct denali_nand_info *denali)
> mtd->oobsize - denali->oob_skip_bytes);
> if (ret) {
> dev_err(denali->dev, "Failed to setup ECC settings.\n");
> - goto disable_irq;
> + return ret;
> }
>
> dev_dbg(denali->dev,
> @@ -1337,7 +1287,7 @@ int denali_init(struct denali_nand_info *denali)
>
> ret = denali_multidev_fixup(denali);
> if (ret)
> - goto disable_irq;
> + return ret;
>
> /*
> * This buffer is DMA-mapped by denali_{read,write}_page_raw. Do not
> @@ -1345,26 +1295,92 @@ int denali_init(struct denali_nand_info *denali)
> * guarantee DMA-safe alignment.
> */
> denali->buf = kmalloc(mtd->writesize + mtd->oobsize, GFP_KERNEL);
> - if (!denali->buf) {
> - ret = -ENOMEM;
> - goto disable_irq;
> + if (!denali->buf)
> + return -ENOMEM;
> +
> + return 0;
> +}
> +
> +static void denali_detach_chip(struct nand_chip *chip)
> +{
> + struct mtd_info *mtd = nand_to_mtd(chip);
> + struct denali_nand_info *denali = mtd_to_denali(mtd);
> +
> + kfree(denali->buf);
> +}
> +
> +static const struct nand_controller_ops denali_controller_ops = {
> + .attach_chip = denali_attach_chip,
> + .detach_chip = denali_detach_chip,
> +};
> +
> +int denali_init(struct denali_nand_info *denali)
> +{
> + struct nand_chip *chip = &denali->nand;
> + struct mtd_info *mtd = nand_to_mtd(chip);
> + u32 features = ioread32(denali->reg + FEATURES);
> + int ret;
> +
> + mtd->dev.parent = denali->dev;
> + denali_hw_init(denali);
> +
> + init_completion(&denali->complete);
> + spin_lock_init(&denali->irq_lock);
> +
> + denali_clear_irq_all(denali);
> +
> + ret = devm_request_irq(denali->dev, denali->irq, denali_isr,
> + IRQF_SHARED, DENALI_NAND_NAME, denali);
> + if (ret) {
> + dev_err(denali->dev, "Unable to request IRQ\n");
> + return ret;
> + }
> +
> + denali_enable_irq(denali);
> + denali_reset_banks(denali);
> +
> + denali->active_bank = DENALI_INVALID_BANK;
> +
> + nand_set_flash_node(chip, denali->dev->of_node);
> + /* Fallback to the default name if DT did not give "label" property */
> + if (!mtd->name)
> + mtd->name = "denali-nand";
> +
> + chip->select_chip = denali_select_chip;
> + chip->read_byte = denali_read_byte;
> + chip->write_byte = denali_write_byte;
> + chip->read_word = denali_read_word;
> + chip->cmd_ctrl = denali_cmd_ctrl;
> + chip->dev_ready = denali_dev_ready;
> + chip->waitfunc = denali_waitfunc;
> +
> + if (features & FEATURES__INDEX_ADDR) {
> + denali->host_read = denali_indexed_read;
> + denali->host_write = denali_indexed_write;
> + } else {
> + denali->host_read = denali_direct_read;
> + denali->host_write = denali_direct_write;
> }
>
> - ret = nand_scan_tail(mtd);
> + /* clk rate info is needed for setup_data_interface */
> + if (denali->clk_rate && denali->clk_x_rate)
> + chip->setup_data_interface = denali_setup_data_interface;
> +
> + chip->dummy_controller.ops = &denali_controller_ops;
> + ret = nand_scan(mtd, denali->max_banks);
> if (ret)
> - goto free_buf;
> + goto disable_irq;
>
> ret = mtd_device_register(mtd, NULL, 0);
> if (ret) {
> dev_err(denali->dev, "Failed to register MTD: %d\n", ret);
> goto cleanup_nand;
> }
> +
> return 0;
>
> cleanup_nand:
> nand_cleanup(chip);
> -free_buf:
> - kfree(denali->buf);
> disable_irq:
> denali_disable_irq(denali);
>
next prev parent reply other threads:[~2018-07-21 6:46 UTC|newest]
Thread overview: 85+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-20 15:14 [PATCH v4 00/35] Allow dynamic allocations during NAND chip identification phase Miquel Raynal
2018-07-20 15:14 ` [PATCH v4 01/35] mtd: rawnand: brcmnand: convert driver to nand_scan() Miquel Raynal
2018-07-21 6:23 ` Boris Brezillon
2018-07-20 15:14 ` [PATCH v4 02/35] mtd: rawnand: cafe: " Miquel Raynal
2018-07-21 6:35 ` Boris Brezillon
2018-07-20 15:14 ` [PATCH v4 03/35] mtd: rawnand: davinci: " Miquel Raynal
2018-07-21 6:44 ` Boris Brezillon
2018-07-20 15:14 ` [PATCH v4 04/35] mtd: rawnand: denali: convert " Miquel Raynal
2018-07-21 6:46 ` Boris Brezillon [this message]
2018-07-25 9:42 ` Masahiro Yamada
2018-07-25 9:51 ` Boris Brezillon
2018-07-25 12:47 ` Miquel Raynal
2018-07-25 14:16 ` Masahiro Yamada
2018-07-20 15:14 ` [PATCH v4 05/35] mtd: rawnand: fsl_elbc: convert driver " Miquel Raynal
2018-07-21 6:50 ` Boris Brezillon
2018-07-20 15:14 ` [PATCH v4 06/35] mtd: rawnand: fsl_ifc: " Miquel Raynal
2018-07-21 6:53 ` Boris Brezillon
2018-07-20 15:14 ` [PATCH v4 07/35] mtd: rawnand: fsmc: " Miquel Raynal
2018-07-21 6:55 ` Boris Brezillon
2018-07-20 15:15 ` [PATCH v4 08/35] mtd: rawnand: gpmi: " Miquel Raynal
2018-07-21 6:56 ` Boris Brezillon
2018-07-20 15:15 ` [PATCH v4 09/35] mtd: rawnand: hisi504: " Miquel Raynal
2018-07-21 6:59 ` Boris Brezillon
2018-07-20 15:15 ` [PATCH v4 10/35] mtd: rawnand: jz4780: " Miquel Raynal
2018-07-21 15:23 ` Boris Brezillon
2018-07-20 15:15 ` [PATCH v4 11/35] mtd: rawnand: lpc32xx_mlc: " Miquel Raynal
2018-07-21 15:26 ` Boris Brezillon
2018-07-20 15:15 ` [PATCH v4 12/35] mtd: rawnand: lpc32xx_slc: " Miquel Raynal
2018-07-21 15:27 ` Boris Brezillon
2018-07-20 15:15 ` [PATCH v4 13/35] mtd: rawnand: marvell: " Miquel Raynal
2018-07-21 16:57 ` Boris Brezillon
2018-07-20 15:15 ` [PATCH v4 14/35] mtd: rawnand: mtk: " Miquel Raynal
2018-07-21 17:10 ` Boris Brezillon
2018-07-26 6:06 ` xiaolei li
2018-07-26 6:14 ` Boris Brezillon
2018-07-26 6:46 ` xiaolei li
2018-07-26 6:49 ` Miquel Raynal
2018-07-26 6:53 ` xiaolei li
2018-07-20 15:15 ` [PATCH v4 15/35] mtd: rawnand: mxc: " Miquel Raynal
2018-07-21 17:19 ` Boris Brezillon
2018-07-20 15:15 ` [PATCH v4 16/35] mtd: rawnand: nandsim: " Miquel Raynal
2018-07-21 17:21 ` Boris Brezillon
2018-07-20 15:15 ` [PATCH v4 17/35] mtd: rawnand: omap2: " Miquel Raynal
2018-07-21 17:34 ` Boris Brezillon
2018-07-20 15:15 ` [PATCH v4 18/35] mtd: rawnand: s3c2410: " Miquel Raynal
2018-07-21 17:38 ` Boris Brezillon
2018-07-20 15:15 ` [PATCH v4 19/35] mtd: rawnand: sh_flctl: move all NAND chip related setup in one function Miquel Raynal
2018-07-21 17:48 ` Boris Brezillon
2018-07-20 15:15 ` [PATCH v4 20/35] mtd: rawnand: sh_flctl: convert driver to nand_scan() Miquel Raynal
2018-07-21 17:49 ` Boris Brezillon
2018-07-20 15:15 ` [PATCH v4 21/35] mtd: rawnand: sunxi: " Miquel Raynal
2018-07-21 17:50 ` Boris Brezillon
2018-07-20 15:15 ` [PATCH v4 22/35] mtd: rawnand: tango: " Miquel Raynal
2018-07-21 17:52 ` Boris Brezillon
2018-07-20 15:15 ` [PATCH v4 23/35] mtd: rawnand: txx9ndfmc: rename nand controller internal structure Miquel Raynal
2018-07-21 17:53 ` Boris Brezillon
2018-07-20 15:15 ` [PATCH v4 24/35] mtd: rawnand: txx9ndfmc: convert driver to nand_scan() Miquel Raynal
2018-07-21 17:54 ` Boris Brezillon
2018-07-21 18:04 ` Boris Brezillon
2018-07-20 15:15 ` [PATCH v4 25/35] mtd: rawnand: vf610: " Miquel Raynal
2018-07-21 18:05 ` Boris Brezillon
2018-07-25 8:57 ` Stefan Agner
2018-07-20 15:15 ` [PATCH v4 26/35] mtd: rawnand: atmel: " Miquel Raynal
2018-07-22 6:40 ` Boris Brezillon
2018-07-20 15:15 ` [PATCH v4 27/35] mtd: rawnand: sm_common: convert driver to nand_scan_with_ids() Miquel Raynal
2018-07-22 6:44 ` Boris Brezillon
2018-07-26 19:06 ` Boris Brezillon
2018-07-26 23:13 ` Miquel Raynal
2018-07-20 15:15 ` [PATCH v4 28/35] mtd: rawnand: allow exiting immediately nand_scan_ident() Miquel Raynal
2018-07-22 8:49 ` Boris Brezillon
2018-07-20 15:15 ` [PATCH v4 29/35] mtd: rawnand: docg4: convert driver to nand_scan() Miquel Raynal
2018-07-22 8:52 ` Boris Brezillon
2018-07-20 15:15 ` [PATCH v4 30/35] mtd: rawnand: qcom: " Miquel Raynal
2018-07-22 8:59 ` Boris Brezillon
2018-07-20 15:15 ` [PATCH v4 31/35] mtd: rawnand: jz4740: " Miquel Raynal
2018-07-22 9:29 ` Boris Brezillon
2018-07-20 15:15 ` [PATCH v4 32/35] mtd: rawnand: tegra: " Miquel Raynal
2018-07-22 9:31 ` Boris Brezillon
2018-07-20 15:15 ` [PATCH v4 33/35] mtd: rawnand: do not export nand_scan_[ident|tail]() anymore Miquel Raynal
2018-07-22 10:30 ` Boris Brezillon
2018-07-20 15:15 ` [PATCH v4 34/35] mtd: rawnand: allocate model parameter dynamically Miquel Raynal
2018-07-22 10:32 ` Boris Brezillon
2018-07-20 15:15 ` [PATCH v4 35/35] mtd: rawnand: allocate dynamically ONFI parameters during detection Miquel Raynal
2018-07-22 10:35 ` Boris Brezillon
2018-07-26 23:34 ` [PATCH v4 00/35] Allow dynamic allocations during NAND chip identification phase Miquel Raynal
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