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Revision b237e3044450fcabc6d63d8578b2fbc8237caba3 authored by Harshad Shirwadkar on 01 April 2021, 17:21:24 UTC, committed by Theodore Ts'o on 09 April 2021, 15:34:58 UTC 
ext4: add ability to return parsed options from parse_options
 
Before this patch, the function parse_options() was returning
journal_devnum and journal_ioprio variables to the caller. This patch
generalizes that interface to allow parse_options to return any parsed
options to return back to the caller. In this patch series, it gets
used to capture the value of "mb_optimize_scan=%u" mount option.

Signed-off-by: Harshad Shirwadkar <harshadshirwadkar@gmail.com>
Reviewed-by: Ritesh Harjani <ritesh.list@gmail.com>
Link: https://lore.kernel.org/r/20210401172129.189766-3-harshadshirwadkar@gmail.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
1 parent 67d2518
Raw File
gigadevice.c 
// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright (C) 2005, Intec Automation Inc.
 * Copyright (C) 2014, Freescale Semiconductor, Inc.
 */

#include <linux/mtd/spi-nor.h>

#include "core.h"

static void gd25q256_default_init(struct spi_nor *nor)
{
	/*
	 * Some manufacturer like GigaDevice may use different
	 * bit to set QE on different memories, so the MFR can't
	 * indicate the quad_enable method for this case, we need
	 * to set it in the default_init fixup hook.
	 */
	nor->params->quad_enable = spi_nor_sr1_bit6_quad_enable;
}

static struct spi_nor_fixups gd25q256_fixups = {
	.default_init = gd25q256_default_init,
};

static const struct flash_info gigadevice_parts[] = {
	{ "gd25q16", INFO(0xc84015, 0, 64 * 1024,  32,
			  SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ |
			  SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB) },
	{ "gd25q32", INFO(0xc84016, 0, 64 * 1024,  64,
			  SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ |
			  SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB) },
	{ "gd25lq32", INFO(0xc86016, 0, 64 * 1024, 64,
			   SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ |
			   SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB) },
	{ "gd25q64", INFO(0xc84017, 0, 64 * 1024, 128,
			  SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ |
			  SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB) },
	{ "gd25lq64c", INFO(0xc86017, 0, 64 * 1024, 128,
			    SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ |
			    SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB) },
	{ "gd25lq128d", INFO(0xc86018, 0, 64 * 1024, 256,
			     SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ |
			     SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB) },
	{ "gd25q128", INFO(0xc84018, 0, 64 * 1024, 256,
			   SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ |
			   SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB) },
	{ "gd25q256", INFO(0xc84019, 0, 64 * 1024, 512,
			   SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ |
			   SPI_NOR_4B_OPCODES | SPI_NOR_HAS_LOCK |
			   SPI_NOR_HAS_TB | SPI_NOR_TB_SR_BIT6)
		.fixups = &gd25q256_fixups },
};

const struct spi_nor_manufacturer spi_nor_gigadevice = {
	.name = "gigadevice",
	.parts = gigadevice_parts,
	.nparts = ARRAY_SIZE(gigadevice_parts),
};
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