From: Boris Brezillon <boris.brezillon@collabora.com>
To: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Rickard Andersson <rickaran@axis.com>,
Michal Simek <monstr@monstr.eu>,
Vignesh Raghavendra <vigneshr@ti.com>,
Tudor Ambarus <Tudor.Ambarus@microchip.com>,
Richard Weinberger <richard@nod.at>,
linux-mtd@lists.infradead.org,
Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
Naga Sureshkumar Relli <nagasure@xilinx.com>
Subject: Re: [PATCH v6 30/30] mtd: rawnand: Allocate the best interface configuration dynamically
Date: Fri, 29 May 2020 10:54:31 +0200 [thread overview]
Message-ID: <20200529105431.5d0b7a9a@collabora.com> (raw)
In-Reply-To: <20200528231612.8958-31-miquel.raynal@bootlin.com>
On Fri, 29 May 2020 01:16:12 +0200
Miquel Raynal <miquel.raynal@bootlin.com> wrote:
>
> @@ -947,7 +949,8 @@ static int nand_reset_interface(struct nand_chip *chip, int chipnr)
> */
> static int nand_setup_interface(struct nand_chip *chip, int chipnr)
> {
> - u8 mode = chip->interface_config.timings.mode;
> + const struct nand_controller_ops *ops = chip->controller->ops;
> + u8 mode = chip->best_interface_config->timings.mode;
I didn't check, but I assume it's safe to dereference
->best_interface_config here (IOW, ->best_interface_config is
guaranteed to be != NULL).
> u8 tmode_param[ONFI_SUBFEATURE_PARAM_LEN] = { mode, };
> int ret;
>
>
> /**
> @@ -2523,8 +2542,8 @@ int nand_reset(struct nand_chip *chip, int chipnr)
> * nand_setup_interface() uses ->set/get_features() which would
> * fail anyway as the parameter page is not available yet.
> */
> - if (!memcmp(&chip->interface_config, nand_get_reset_interface(),
> - sizeof(chip->interface_config)))
> + if (!chip->best_interface_config ||
> + chip->best_interface_config == nand_get_reset_interface())
I think 'chip->best_interface_config == nand_get_reset_interface()' is
never true.
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next prev parent reply other threads:[~2020-05-29 8:54 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-28 23:15 [PATCH v6 00/30] Allow vendor drivers to propose their own timings Miquel Raynal
2020-05-28 23:15 ` [PATCH v6 01/30] mtd: rawnand: Use unsigned types for nand_chip unsigned values Miquel Raynal
2020-05-28 23:15 ` [PATCH v6 02/30] mtd: rawnand: Only use u8 instead of uint8_t in nand_chip structure Miquel Raynal
2020-05-28 23:15 ` [PATCH v6 03/30] mtd: rawnand: Create a nand_chip operations structure Miquel Raynal
2020-05-28 23:15 ` [PATCH v6 04/30] mtd: rawnand: Rename the manufacturer structure Miquel Raynal
2020-05-28 23:15 ` [PATCH v6 05/30] mtd: rawnand: Declare the nand_manufacturer structure out of nand_chip Miquel Raynal
2020-05-28 23:15 ` [PATCH v6 06/30] mtd: rawnand: Reorganize the nand_chip structure Miquel Raynal
2020-05-28 23:15 ` [PATCH v6 07/30] mtd: rawnand: Compare the actual timing values Miquel Raynal
2020-05-28 23:15 ` [PATCH v6 08/30] mtd: rawnand: Use the data interface mode entry when relevant Miquel Raynal
2020-05-28 23:15 ` [PATCH v6 09/30] mtd: rawnand: Rename nand_has_setup_data_iface() Miquel Raynal
2020-05-28 23:15 ` [PATCH v6 10/30] mtd: rawnand: Fix nand_setup_data_interface() description Miquel Raynal
2020-05-28 23:15 ` [PATCH v6 11/30] mtd: rawnand: Rename nand_init_data_interface() Miquel Raynal
2020-05-28 23:15 ` [PATCH v6 12/30] mtd: rawnand: timings: Update onfi_fill_data_interface() kernel doc Miquel Raynal
2020-05-28 23:15 ` [PATCH v6 13/30] mtd: rawnand: timings: Provide onfi_fill_data_interface() with a data interface Miquel Raynal
2020-05-29 7:16 ` Boris Brezillon
2020-05-28 23:15 ` [PATCH v6 14/30] mtd: rawnand: timings: Add a helper to find the closest ONFI mode Miquel Raynal
2020-05-28 23:15 ` [PATCH v6 15/30] mtd: rawnand: timings: Avoid redefining tR_max and tCCS_min Miquel Raynal
2020-05-28 23:15 ` [PATCH v6 16/30] mtd: rawnand: timings: Use default values for tPROG_max and tBERS_max Miquel Raynal
2020-05-29 7:21 ` Boris Brezillon
2020-05-28 23:15 ` [PATCH v6 17/30] mtd: rawnand: s/data_interface/interface_config/ Miquel Raynal
2020-05-29 7:44 ` Boris Brezillon
2020-05-29 7:47 ` Boris Brezillon
2020-05-29 8:11 ` Boris Brezillon
2020-05-29 8:19 ` Miquel Raynal
2020-05-28 23:16 ` [PATCH v6 18/30] mtd: rawnand: timings: Make onfi_fill_interface_config() a void helper Miquel Raynal
2020-05-29 7:27 ` Boris Brezillon
2020-05-28 23:16 ` [PATCH v6 19/30] mtd: rawnand: Define a unique reset interface configuration Miquel Raynal
2020-05-29 7:32 ` Boris Brezillon
2020-05-29 9:27 ` Miquel Raynal
2020-05-28 23:16 ` [PATCH v6 20/30] mtd: rawnand: marvell: Use a helper to access the timings Miquel Raynal
2020-05-28 23:16 ` [PATCH v6 21/30] mtd: rawnand: legacy: " Miquel Raynal
2020-05-28 23:16 ` [PATCH v6 22/30] mtd: rawnand: Hide the chip->interface_config indirection Miquel Raynal
2020-05-29 7:37 ` Boris Brezillon
2020-05-28 23:16 ` [PATCH v6 23/30] mtd: rawnand: Introduce nand_choose_best_sdr_timings() Miquel Raynal
2020-05-28 23:16 ` [PATCH v6 24/30] mtd: rawnand: Add the ->choose_interface() hook Miquel Raynal
2020-05-29 7:42 ` Boris Brezillon
2020-05-28 23:16 ` [PATCH v6 25/30] mtd: rawnand: toshiba: Implement ->choose_interface() for TC58TEG5DCLTA00 Miquel Raynal
2020-05-28 23:16 ` [PATCH v6 26/30] mtd: rawnand: toshiba: Implement ->choose_interface() for TC58NVG0S3E Miquel Raynal
2020-05-28 23:16 ` [PATCH v6 27/30] mtd: rawnand: hynix: Implement ->choose_interface() for H27UCG8T2ATR-BC Miquel Raynal
2020-05-28 23:16 ` [PATCH v6 28/30] mtd: rawnand: toshiba: Choose the data interface for TH58NVG2S3HBAI4 Miquel Raynal
2020-05-28 23:16 ` [PATCH v6 29/30] mtd: rawnand: Get rid of the default ONFI timing mode Miquel Raynal
2020-05-28 23:16 ` [PATCH v6 30/30] mtd: rawnand: Allocate the best interface configuration dynamically Miquel Raynal
2020-05-29 8:54 ` Boris Brezillon [this message]
2020-05-29 9:16 ` Miquel Raynal
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