linux-kernel - [PATCH 0/9] Input: synaptics-rmi4 - Bootloader v7/v8 firmware update improvements

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Message-Id: <20220608124808.51402-1-matthias.schiffer@ew.tq-group.com>
Date:   Wed,  8 Jun 2022 14:47:59 +0200
From:   Matthias Schiffer <matthias.schiffer@...tq-group.com>
To:     Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc:     Lyude Paul <lyude@...hat.com>,
        "Jason A. Donenfeld" <Jason@...c4.com>,
        linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
        Matthias Schiffer <matthias.schiffer@...tq-group.com>
Subject: [PATCH 0/9] Input: synaptics-rmi4 - Bootloader v7/v8 firmware update improvements

This fixes the firmware update function with bootloader v8, allows to
recover from interrupted updates with v7/v8, and does some code cleanup.

I believe that the code that allows to recover from a broken partition
table is also necessary to make flashing a different partition table
work at all, but I wasn't able to verify that, as I don't have any firmware
images with different partition tables to test with. In any case, I'm
pretty sure that it is working correctly now, as recovery from a mostly
empty flash without partition table has been tested successfully.

I have only tested the new code with bootloader v8, and I don't have the
documentation / interfacing guide for v7, so it would be great if anyone
could check that I didn't break updates for v7.

Matthias Schiffer (9):
  Input: synaptics-rmi4 - fix firmware update operations with bootloader
    v8
  Input: synaptics-rmi4 - introduce rmi_f34v7_check_command_status()
    helper
  Input: synaptics-rmi4 - fix command completion check for bootloader
    v7/v8
  Input: synaptics-rmi4 - rewrite partition table unconditionally
  Input: synaptics-rmi4 - reset after writing partition table
  Input: synaptics-rmi4 - make rmi_f34v7_erase_all() use the "erase all"
    command
  Input: synaptics-rmi4 - remove unneeded struct register_offset
  Input: synaptics-rmi4 - simplify rmi_f34v7_start_reflash()
  Input: synaptics-rmi4 - drop useless gotos in rmi_f34v7_do_reflash()

 drivers/input/rmi4/rmi_f34.c   |  16 +-
 drivers/input/rmi4/rmi_f34.h   |  17 --
 drivers/input/rmi4/rmi_f34v7.c | 349 +++++++--------------------------
 3 files changed, 81 insertions(+), 301 deletions(-)

-- 
2.25.1