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From: Sascha Hauer <s.hauer@pengutronix.de>
To: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Richard Weinberger <richard@nod.at>,
	linux-mtd@lists.infradead.org,
	Vignesh Raghavendra <vigneshr@ti.com>,
	Fabio Estevam <festevam@gmail.com>,
	Tudor Ambarus <Tudor.Ambarus@microchip.com>
Subject: Re: [PATCH v13 19/20] mtd: rawnand: Use the ECC framework user input parsing bits
Date: Mon, 21 Sep 2020 11:36:03 +0200
Message-ID: <20200921093603.GA19513@pengutronix.de> (raw)
In-Reply-To: <20200827085208.16276-20-miquel.raynal@bootlin.com>

On Thu, Aug 27, 2020 at 10:52:07AM +0200, Miquel Raynal wrote:
> Many helpers are generic to all NAND chips, they should not be
> raw-NAND specific, so use the generic ones.
> 
> To avoid moving all the raw NAND core "history" into the generic NAND
> layer, we keep a part of this parsing in the raw NAND core to ensure
> backward compatibility.
> 
> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
> ---

...

> -static int of_get_nand_ecc_step_size(struct device_node *np)
> +static void of_get_nand_ecc_legacy_user_config(struct nand_chip *chip)
>  {
> -	int ret;
> -	u32 val;
> +	struct device_node *dn = nand_get_flash_node(chip);
> +	struct nand_ecc_props *user_conf = &chip->base.ecc.user_conf;
>  
> -	ret = of_property_read_u32(np, "nand-ecc-step-size", &val);
> -	return ret ? ret : val;
> -}
> +	if (user_conf->engine_type != NAND_ECC_ENGINE_TYPE_INVALID)
> +		user_conf->engine_type = of_get_rawnand_ecc_engine_type_legacy(dn);

I think the intention is to set user_conf->engine_type when it's not set already,
so this should be == instead of !=

>  
> -static int of_get_nand_ecc_strength(struct device_node *np)
> -{
> -	int ret;
> -	u32 val;
> +	if (user_conf->algo != NAND_ECC_ALGO_UNKNOWN)
> +		user_conf->algo = of_get_rawnand_ecc_algo_legacy(dn);

ditto

>  
> -	ret = of_property_read_u32(np, "nand-ecc-strength", &val);
> -	return ret ? ret : val;
> +	if (user_conf->placement != NAND_ECC_PLACEMENT_UNKNOWN)
> +		user_conf->placement = of_get_rawnand_ecc_placement_legacy(dn);

ditto

Sascha

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Thread overview: 57+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-27  8:51 [PATCH v13 00/20] Introduction of the generic ECC framework Miquel Raynal
2020-08-27  8:51 ` [PATCH v13 01/20] mtd: rawnand: Add a kernel doc to the ECC algorithm enumeration Miquel Raynal
2020-09-07  7:25   ` Miquel Raynal
2020-08-27  8:51 ` [PATCH v13 02/20] mtd: rawnand: Rename the ECC algorithm enumeration items Miquel Raynal
2020-09-07  7:25   ` Miquel Raynal
2020-08-27  8:51 ` [PATCH v13 03/20] mtd: rawnand: Move the nand_ecc_algo enum to the generic NAND layer Miquel Raynal
2020-09-07  7:24   ` Miquel Raynal
2020-08-27  8:51 ` [PATCH v13 04/20] mtd: nand: Add a NAND page I/O request type Miquel Raynal
2020-09-07  7:24   ` Miquel Raynal
2020-08-27  8:51 ` [PATCH v13 05/20] dt-bindings: mtd: Document nand-ecc-placement Miquel Raynal
2020-09-07  7:24   ` Miquel Raynal
2020-08-27  8:51 ` [PATCH v13 06/20] dt-bindings: mtd: Document nand-ecc-engine Miquel Raynal
2020-09-07  7:24   ` Miquel Raynal
2020-08-27  8:51 ` [PATCH v13 07/20] dt-bindings: mtd: Document boolean NAND ECC properties Miquel Raynal
2020-09-07  7:24   ` Miquel Raynal
2020-08-27  8:51 ` [PATCH v13 08/20] mtd: nand: Introduce the ECC engine framework Miquel Raynal
2020-09-07  7:24   ` Miquel Raynal
2020-08-27  8:51 ` [PATCH v13 09/20] mtd: rawnand: Separate the ECC engine type and the ECC byte placement Miquel Raynal
2020-09-07  7:24   ` Miquel Raynal
2020-10-14 21:36   ` Han Xu
2020-10-15  1:35     ` Fabio Estevam
2020-10-15  3:09       ` Han Xu
2020-10-15  7:25         ` Miquel Raynal
2020-10-16 17:09           ` Han Xu
2020-10-16 17:14             ` Miquel Raynal
2020-10-16 17:51               ` Han Xu
2020-10-16 18:00                 ` Miquel Raynal
2020-10-16 21:03                 ` Fabio Estevam
2020-10-19 15:51                   ` Han Xu
2020-10-19 16:52                     ` Fabio Estevam
2020-08-27  8:51 ` [PATCH v13 10/20] mtd: rawnand: Use the new ECC engine type enumeration Miquel Raynal
2020-09-07  7:24   ` Miquel Raynal
2020-08-27  8:51 ` [PATCH v13 11/20] mtd: nand: Create a helper to extract the ECC configuration Miquel Raynal
2020-09-07  7:24   ` Miquel Raynal
2020-08-27  8:52 ` [PATCH v13 12/20] mtd: spinand: Use nanddev_get_ecc_conf() when relevant Miquel Raynal
2020-09-07  7:24   ` Miquel Raynal
2020-08-27  8:52 ` [PATCH v13 13/20] mtd: nand: Create helpers to set/extract the ECC requirements Miquel Raynal
2020-09-07  7:24   ` Miquel Raynal
2020-08-27  8:52 ` [PATCH v13 14/20] mtd: rawnand: Use nanddev_get/set_ecc_requirements() when relevant Miquel Raynal
2020-09-07  7:23   ` Miquel Raynal
2020-08-27  8:52 ` [PATCH v13 15/20] mtd: nand: Use the new generic ECC object Miquel Raynal
2020-09-07  7:23   ` Miquel Raynal
2020-08-27  8:52 ` [PATCH v13 16/20] mtd: rawnand: Make use of the ECC framework Miquel Raynal
2020-09-07  7:23   ` Miquel Raynal
2020-08-27  8:52 ` [PATCH v13 17/20] mtd: rawnand: Use the ECC framework OOB layouts Miquel Raynal
2020-09-07  7:23   ` Miquel Raynal
2020-09-20 12:21   ` Janusz Krzysztofik
2020-09-29  8:15     ` Miquel Raynal
2020-09-29 21:26       ` Janusz Krzysztofik
2020-08-27  8:52 ` [PATCH v13 18/20] mtd: rawnand: Use the ECC framework nand_ecc_is_strong_enough() helper Miquel Raynal
2020-09-07  7:23   ` Miquel Raynal
2020-08-27  8:52 ` [PATCH v13 19/20] mtd: rawnand: Use the ECC framework user input parsing bits Miquel Raynal
2020-09-07  7:23   ` Miquel Raynal
2020-09-21  9:36   ` Sascha Hauer [this message]
2020-09-28 15:18     ` Miquel Raynal
2020-08-27  8:52 ` [PATCH v13 20/20] mtd: rawnand: Use the NAND framework user_conf object for ECC flags Miquel Raynal
2020-09-07  7:23   ` Miquel Raynal

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