linux-kernel - [PATCH v8 0/2] Add spi-nor flash device pm support

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <1503434722-5429-1-git-send-email-kdasu.kdev@gmail.com>
Date:   Tue, 22 Aug 2017 16:45:20 -0400
From:   Kamal Dasu <kdasu.kdev@...il.com>
To:     cyrille.pitchen@...ev4u.fr, marek.vasut@...il.com
Cc:     computersforpeace@...il.com, boris.brezillon@...e-electrons.com,
        richard@....at, linux-mtd@...ts.infradead.org,
        linux-kernel@...r.kernel.org, f.fainelli@...il.com,
        bcm-kernel-feedback-list@...adcom.com,
        Kamal Dasu <kdasu.kdev@...il.com>
Subject: [PATCH v8 0/2]  Add spi-nor flash device pm support

Changes since v7 

spi-nor.h
- Fix comment style

spi-nor.c
- Fix condition check to set_4byte() when nor->addr_width == 4 in spi_nor_init()
- Bring back quad_enable logic to spi_nor_setup() and remove it from spi_nor_scan()
- Remove duplicate comment section in spi_nor_scan()
- Leave dev_info() string as before in spi_nor_scan()

The V8 changes below implements power management support using the mtd
handlers for resume in the spi-nor driver. spi-nor mtd pm resume() calls
newly implemented spi_nor_init() function that sets up the spi-nor flash
to its pre-suspend/power-on probed state. This is needed S2/S3 PM 
on platfroms that turn off power to the spi-nor flash on pm suspend.

Kamal Dasu (2):
  mtd: spi-nor: add spi_nor_init() function
  mtd: spi-nor: Add spi-nor mtd resume handler

 drivers/mtd/spi-nor/spi-nor.c | 68 +++++++++++++++++++++++++++++++------------
 include/linux/mtd/spi-nor.h   | 10 +++++++
 2 files changed, 60 insertions(+), 18 deletions(-)

-- 
1.9.1