linux-mtd.lists.infradead.org archive mirror
 help / color / mirror / Atom feed
From: Yicong Yang <yangyicong@hisilicon.com>
To: <tudor.ambarus@microchip.com>, <p.yadav@ti.com>,
	<linux-mtd@lists.infradead.org>
Cc: vigneshr@ti.com, sergei.shtylyov@cogentembedded.com,
	richard@nod.at, john.garry@huawei.com, linuxarm@huawei.com,
	yangyicong@hisilicon.com, alexander.sverdlin@nokia.com,
	miquel.raynal@bootlin.com
Subject: [PATCH v2 0/2] Add support to Disable the flash quad mode
Date: Mon, 6 Jul 2020 17:22:34 +0800	[thread overview]
Message-ID: <1594027356-19088-1-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 Standard/Dual SPI mode, the quad enable bits is not cleared,
and the function of flash's WP# and RESET#/HOLD# pin will not
be restored.

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

Change since v1:
- Address the comments by Tudor
- Reword the commit message in Patch 2/2. 

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, 43 insertions(+), 24 deletions(-)

-- 
2.8.1


______________________________________________________
Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/

             reply	other threads:[~2020-07-06  9:26 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-06  9:22 Yicong Yang [this message]
2020-07-06  9:22 ` [PATCH v2 1/2] mtd: spi-nor: Add capability to disable flash quad mode Yicong Yang
2020-07-06  9:22 ` [PATCH v2 2/2] mtd: spi-nor: Disable the flash quad mode in spi_nor_restore() Yicong Yang
2020-07-13  9:26 ` [PATCH v2 0/2] Add support to Disable the flash quad mode Tudor Ambarus

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1594027356-19088-1-git-send-email-yangyicong@hisilicon.com \
    --to=yangyicong@hisilicon.com \
    --cc=alexander.sverdlin@nokia.com \
    --cc=john.garry@huawei.com \
    --cc=linux-mtd@lists.infradead.org \
    --cc=linuxarm@huawei.com \
    --cc=miquel.raynal@bootlin.com \
    --cc=p.yadav@ti.com \
    --cc=richard@nod.at \
    --cc=sergei.shtylyov@cogentembedded.com \
    --cc=tudor.ambarus@microchip.com \
    --cc=vigneshr@ti.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).