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From: Yicong Yang <yangyicong@hisilicon.com>
To: <tudor.ambarus@microchip.com>, <linux-mtd@lists.infradead.org>
Cc: vigneshr@ti.com, sergei.shtylyov@cogentembedded.com,
	richard@nod.at, me@yadavpratyush.com, john.garry@huawei.com,
	linuxarm@huawei.com, yangyicong@hisilicon.com,
	alexander.sverdlin@nokia.com, miquel.raynal@bootlin.com,
	p.yadav@ti.com
Subject: [PATCH 0/2] Add support to Disable the flash quad mode
Date: Tue, 16 Jun 2020 21:02:25 +0800	[thread overview]
Message-ID: <1592312547-19239-1-git-send-email-yangyicong@hisilicon.com> (raw)

Previously we didn't disable the flash's quad mode when it's removed
Then comes the problem that if we next time load the flash
in SPI/Dual mode, it will not be correctly enabled as the quad enable
bits has not been cleared. I validated the condition on Cypress s25fs128s1.

This series adds the capability to disable the flash's quad mode. And
restore the flash when it's removed in spi_nor_restore().

Yicong Yang (2):
  mtd: spi-nor: Add capability to disable flash quad mode
  mtd: spi-nor: Disable the flash quad mode in spi_nor_restore()

 drivers/mtd/spi-nor/core.c | 57 +++++++++++++++++++++++++++++++---------------
 drivers/mtd/spi-nor/core.h | 10 ++++----
 2 files changed, 44 insertions(+), 23 deletions(-)

-- 
2.8.1


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             reply	other threads:[~2020-06-16 13:03 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-16 13:02 Yicong Yang [this message]
2020-06-16 13:02 ` [PATCH 1/2] mtd: spi-nor: Add capability to disable flash quad mode Yicong Yang
2020-07-02 11:07   ` Tudor.Ambarus
2020-06-16 13:02 ` [PATCH 2/2] mtd: spi-nor: Disable the flash quad mode in spi_nor_restore() Yicong Yang
2020-07-02 11:02   ` Tudor.Ambarus
2020-07-03 11:19     ` Pratyush Yadav
2020-07-03 11:52       ` Tudor.Ambarus
2020-07-06  6:47         ` Yicong Yang
2020-09-01  6:16   ` Matthias Weißer
2020-09-01  9:48     ` Pratyush Yadav
2020-09-01 10:08       ` Matthias Weißer
2020-09-01 11:11         ` Pratyush Yadav
2020-09-01 11:41     ` Yicong Yang
2020-09-01 14:20     ` Yicong Yang
2020-09-02  7:50       ` Vignesh Raghavendra
2020-09-02 10:12         ` Yicong Yang
2020-09-03  5:59           ` Vignesh Raghavendra
2020-09-04  7:54             ` Yicong Yang
2020-09-04  9:35               ` Matthias Weißer
2020-09-02 12:15       ` Matthias Weißer
2020-09-03  3:03         ` Yicong Yang
2020-09-03  5:33           ` Matthias Weißer
2020-09-04  7:56             ` Yicong Yang

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