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 Brown's tree) that enable sound for Baytrail CR devices (especially Asus T100TAF) [1]. They include the clock driver and clock enabling in the pmc_atom code (along with moving of the non-architectural pmc_atom driver code into drivers/platform/x86 as suggested by Thomas Gleixner [2]). This move includes a new header in include/linux/platform_data/x86/. While there is an agreement that the definitions for PMC clocks are not really platform data this location is seen as a good-enough compromise with an agreement between Darren Hart and Andy Shevchenko [3]
[1] http://mailman.alsa-project.org/pipermail/alsa-devel/2016-August/111704.html [2] http://mailman.alsa-project.org/pipermail/alsa-devel/2016-October/113936.htm... [3] http://mailman.alsa-project.org/pipermail/alsa-devel/2016-December/115892.ht...
Changes from v6: - Addressed comments from Stephen Boyd, Andy Shevchenko and Vinod Koul - Renamed clk-byt-plt to clk-pmc-atom - Rebase to 4.10-rc3 (broonie/for-next) - Added helper functions to make error handling more compact - Removed module-related code since it's not possible/supported - Removed useless tests on remove - PMC_CLK_OFFSET move to clk-pcm-atom (more logical) - Split typo correction and makefile fix in separate patches - small fixes (spaces, defaults in switches, alphabetical order, use of clk_writel/readl and no test on write, simpler error handling, use of while(i--), unsigned loop variables, kernel doc fields, format-patch -M -C -D, use of PLATFORM_DEVID_NONE)
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
Pierre-Louis Bossart (2): clk: Make x86/ conditional on CONFIG_COMMON_CLK platform/x86: fix typo in comment
arch/x86/Kconfig | 4 - arch/x86/platform/atom/Makefile | 1 - drivers/acpi/acpi_lpss.c | 2 +- drivers/clk/Makefile | 2 + drivers/clk/x86/Makefile | 1 + drivers/clk/x86/clk-pmc-atom.c | 373 +++++++++++++++++++++ drivers/platform/x86/Kconfig | 5 + drivers/platform/x86/Makefile | 1 + .../atom => drivers/platform/x86}/pmc_atom.c | 88 ++++- include/linux/platform_data/x86/clk-pmc-atom.h | 44 +++ .../linux/platform_data/x86}/pmc_atom.h | 2 +- 11 files changed, 508 insertions(+), 15 deletions(-) create mode 100644 drivers/clk/x86/clk-pmc-atom.c rename {arch/x86/platform/atom => drivers/platform/x86}/pmc_atom.c (87%) create mode 100644 include/linux/platform_data/x86/clk-pmc-atom.h rename {arch/x86/include/asm => include/linux/platform_data/x86}/pmc_atom.h (98%)