linux-kernel - [PATCH 0/4] mtd: phram improvements

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Message-ID: <20220307141549.2732179-1-vincent.whitchurch@axis.com>
Date:   Mon, 7 Mar 2022 15:15:45 +0100
From:   Vincent Whitchurch <vincent.whitchurch@...s.com>
To:     <vigneshr@...com>, <richard@....at>, <miquel.raynal@...tlin.com>,
        <joern@...ybastard.org>
CC:     <kernel@...s.com>, <linux-kernel@...r.kernel.org>,
        <linux-mtd@...ts.infradead.org>, <devicetree@...r.kernel.org>,
        <frowand.list@...il.com>, <krzysztof.kozlowski@...onical.com>,
        <robh+dt@...nel.org>,
        Vincent Whitchurch <vincent.whitchurch@...s.com>
Subject: [PATCH 0/4] mtd: phram improvements

The phram driver in the MTD subsystem can be used to allow the kernel to use an
MTD or (via mtdblock) a block device in RAM (with the contents loaded by a
bootloader for example).  This series has some improvements to make it more
usable by adding device tree support and to significantly improve its
performance by using cached mappings when possible.

Vincent Whitchurch (4):
  mtd: core: Check devicetree alias for index
  dt-bindings: reserved-memory: Add phram
  mtd: phram: Allow probing via reserved-memory
  mtd: phram: Allow cached mappings

 .../bindings/reserved-memory/phram.yaml       | 45 +++++++++++
 drivers/mtd/devices/phram.c                   | 78 +++++++++++++++++--
 drivers/mtd/mtdcore.c                         | 11 ++-
 drivers/of/platform.c                         |  1 +
 4 files changed, 127 insertions(+), 8 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/reserved-memory/phram.yaml

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2.34.1