linux-kernel - [PATCH v3 0/7] firmware: coreboot: Fix probe and simplify code

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Message-Id: <20180809171722.144325-1-swboyd@chromium.org>
Date:   Thu,  9 Aug 2018 10:17:15 -0700
From:   Stephen Boyd <swboyd@...omium.org>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     linux-kernel@...r.kernel.org,
        Wei-Ning Huang <wnhuang@...omium.org>,
        Julius Werner <jwerner@...omium.org>,
        Brian Norris <briannorris@...omium.org>,
        Samuel Holland <samuel@...lland.org>
Subject: [PATCH v3 0/7] firmware: coreboot: Fix probe and simplify code

This series reworks the coreboot firmware driver a bit to fix some bugs
and then simplify the code by changing the design to get rid of the
different platform drivers, remap memory with memremap(), and use devm
to simplify error paths. There's some risk in changing to memremap() but
I think that should work out alright. It will either return memory
directly, or fallback to ioremap_cache() as has been done before.

Changes from v2:
 * A bunch more patches
 * Fix iounmap missing on error path
 * Fix bus getting unregistered on driver unbind and never registered
   again
 * Request exclusive access to table region
 * Pull out table signature check to driver probe

Changes from v1:
 * Split out fixlet for DT based driver from platform driver change

Cc: Wei-Ning Huang <wnhuang@...omium.org>
Cc: Julius Werner <jwerner@...omium.org>
Cc: Brian Norris <briannorris@...omium.org>
Cc: Samuel Holland <samuel@...lland.org>

Stephen Boyd (7):
  firmware: coreboot: Let OF core populate platform device
  firmware: coreboot: Unmap ioregion on failure
  firmware: coreboot: Make bus registration symmetric
  firmware: coreboot: Collapse platform drivers into bus core
  firmware: coreboot: Remap RAM with memremap() instead of ioremap()
  firmware: coreboot: Only populate devices in coreboot_table_init()
  firmware: coreboot: Request table region for exclusive access

 drivers/firmware/google/Kconfig               |  26 ++--
 drivers/firmware/google/Makefile              |   2 -
 drivers/firmware/google/coreboot_table-acpi.c |  88 ------------
 drivers/firmware/google/coreboot_table-of.c   |  82 -----------
 drivers/firmware/google/coreboot_table.c      | 135 +++++++++++++-----
 drivers/firmware/google/coreboot_table.h      |   6 -
 6 files changed, 107 insertions(+), 232 deletions(-)
 delete mode 100644 drivers/firmware/google/coreboot_table-acpi.c
 delete mode 100644 drivers/firmware/google/coreboot_table-of.c

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