[alsa-devel] [PATCH v6 0/3] Add platform clock for BayTrail platforms

[Irina Tirdea]

These patches specifically enable the audio MCLK required by Baytrail CR
devices. It is the remaining part of a bigger set of patches
(already merged in Mark's tree) that enable sound for Baytrail CR devices
(especially Asus T100TAF) [1]. They include the clock driver and enabling
the clock in the pmc_atom code (along with moving of the non-architectural
pmc_atom driver code into drivers/platform/x86).

[1] http://mailman.alsa-project.org/pipermail/alsa-devel/2016-August/111704.html

Changes from v5:
 - fix build error reported by kbuild test robot
 - split the clk driver code from x86 platform changes

Changes from v4:
 - move the pmc_atom driver from arch/x86/platform/atom to
drivers/platform/x86

Changes from v3:
 - replace devm_kzalloc with devm_kcalloc
 - add x86 architecture maintainers

Changes from v2:
 - move clk platform data structures to a separate include file
 - store clk_hw pointer for the fixed rate clocks

Changes from v1:
 - register the clk device as child of pmc device
 - pass iomem pointer from pmc driver to clk driver to avoid using
pmc_atom_read()/write() and use readl/writel API instead
 - use devm_clk_hw_register/clkdev_hw_create instead of
clk_register/clkdev_create

Irina Tirdea (3):
  clk: x86: Add Atom PMC platform clocks
  arch/x86/platform/atom: Move pmc_atom to drivers/platform/x86
  platform/x86: Enable Atom PMC platform clocks

 arch/x86/Kconfig                                   |   4 -
 arch/x86/platform/atom/Makefile                    |   1 -
 drivers/acpi/acpi_lpss.c                           |   2 +-
 drivers/clk/x86/Makefile                           |   3 +
 drivers/clk/x86/clk-byt-plt.c                      | 380 +++++++++++++++++++++
 drivers/platform/x86/Kconfig                       |   5 +
 drivers/platform/x86/Makefile                      |   1 +
 .../atom => drivers/platform/x86}/pmc_atom.c       |  81 ++++-
 include/linux/platform_data/x86/clk-byt-plt.h      |  31 ++
 .../linux/platform_data/x86}/pmc_atom.h            |   3 +
 10 files changed, 500 insertions(+), 11 deletions(-)
 create mode 100644 drivers/clk/x86/clk-byt-plt.c
 rename {arch/x86/platform/atom => drivers/platform/x86}/pmc_atom.c (88%)
 create mode 100644 include/linux/platform_data/x86/clk-byt-plt.h
 rename {arch/x86/include/asm => include/linux/platform_data/x86}/pmc_atom.h (98%)

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1.9.1