linux-kernel - [PATCH v7 0/2] Add spi-nor flash device pm support

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Message-Id: <1501627276-4567-1-git-send-email-kdasu.kdev@gmail.com>
Date:   Tue,  1 Aug 2017 18:41:14 -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 v7 0/2] Add spi-nor flash device pm support

Changes since v6 

spi-nor.h
- Reverted all v6 changes
- Added info pointer to spi-nor structure
- Added quad_enable function pointer

spi-nor.c
- Reverted all v6 changes
- Refactored spi_nor_init() function
- Added mtd resume handlers 

The V7 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 | 75 ++++++++++++++++++++++++++++++++-----------
 include/linux/mtd/spi-nor.h   |  9 ++++++
 2 files changed, 65 insertions(+), 19 deletions(-)

-- 
1.9.1