On Thu, 23 Jul 2015, Andy Shevchenko wrote:

On Mon, 2015-07-06 at 15:22 +0300, Andy Shevchenko wrote:

quoted

The new coming Intel platforms such as Skylake will contain 
Sunrisepoint PCH.

The driver is based on MFD framework since the main device, i.e. 
serial bus
controller, contains register space for itself, DMA part, and an 
additional
address space (convergence layer). 

The public specification of the register map is avaiable in [1].

This is fifth generation of the patch series to bring support LPSS 
devices
found on Intel Sunrisepoint (Intel Skylake PCH). Previous one can be 
found here
[2].

The series has few logical parts:
- patches 1-3 prepares PM core, ACPI, and driver core (PM) to handle 
our case
- patches 4-6 introduce unregistering platform devices in MFD in 
reversed
  order
- patch 7 implements iDMA 64-bit driver
- patch 8 introduces an MFD driver for LPSS devices

The patch 7 can be applied independently, though it's better if it 
goes before
patch 8.

The driver has been tested with SPI and UART on Intel Skylake PCH.

[1] https://download.01.org/future-platform-configuration
-hub/skylake/register-definitions/332219-002.pdf
[2] http://www.spinics.net/lists/linux-acpi/msg58622.html

Lee, can we move forward this thing somehow?

We may create a topic branch for you where we apply already Acked
patches (1-5) to reduce burden on reviewers. Would it help?

I just need one of the clock guys to take a look at the MFD patch
before I apply the set.

What other Acks are you waiting on?

NB: I don't need a branch, it's easier for me to apply patches from my
mbox.

quoted

Changelog v5:
  - rebase on top of v4.2-rc1
  - patch 3 is modified accordingly to new changes in 
drivers/base/dd.c
  - correct Rafael's email in patch 3

Changelog v4:
  - replace patch 3 by Rafael's suggession
  - append ACKs from Rafael
  - rebase on top of v4.1-rc8

Changelog v3:
  - rework patch 3 to be used for all kind of devices (address Alan 
comment)
  - iDMA 64-bit driver improvements:
    - fix burst-to-register conversion
    - remove excessive locking
  - do not expose core part to the user (Kconfig)
  - address most of Lee's comments
  - append ACKs
  - rebase on top of v4.1-rc6

Changelog v2:
  - new DMA driver to fully support iDMA 64-bit IP
  - patch 3 is added to wake up parent devices when ->probe(), 
->remove(), or
    ->shutdown()
  - MFD core is unregistering devices in reversed order
  - address few Lee's comments on v1
  - address Russel's comment, therefore use clkdev_create() helper
  - intel-lpss{,-acpi,-pci} are modified regarding to above changes

Andy Shevchenko (5):
  klist: implement klist_prev()
  driver core: implement device_for_each_child_reverse()
  mfd: make mfd_remove_devices() iterate in reverse order
  dmaengine: add a driver for Intel integrated DMA 64-bit
  mfd: Add support for Intel Sunrisepoint LPSS devices

Mika Westerberg (2):
  PM / QoS: Make it possible to expose device latency tolerance to
    userspace
  ACPI / PM: Attach ACPI power domain only once

Rafael J. Wysocki (1):
  Driver core: wakeup the parent device before trying probe

 drivers/acpi/device_pm.c      |   8 +
 drivers/acpi/internal.h       |   2 +
 drivers/acpi/scan.c           |  46 ++-
 drivers/base/core.c           |  43 +++
 drivers/base/dd.c             |  20 ++
 drivers/base/power/power.h    |   2 +
 drivers/base/power/qos.c      |  37 +++
 drivers/base/power/sysfs.c    |  11 +
 drivers/dma/Kconfig           |   5 +
 drivers/dma/Makefile          |   1 +
 drivers/dma/idma64.c          | 724 
++++++++++++++++++++++++++++++++++++++++++
 drivers/dma/idma64.h          | 232 ++++++++++++++
 drivers/mfd/Kconfig           |  23 ++
 drivers/mfd/Makefile          |   3 +
 drivers/mfd/intel-lpss-acpi.c |  84 +++++
 drivers/mfd/intel-lpss-pci.c  | 113 +++++++
 drivers/mfd/intel-lpss.c      | 524 ++++++++++++++++++++++++++++++
 drivers/mfd/intel-lpss.h      |  62 ++++
 drivers/mfd/mfd-core.c        |   2 +-
 include/linux/device.h        |   2 +
 include/linux/klist.h         |   1 +
 include/linux/pm_qos.h        |   5 +
 lib/klist.c                   |  41 +++
 23 files changed, 1974 insertions(+), 17 deletions(-)
 create mode 100644 drivers/dma/idma64.c
 create mode 100644 drivers/dma/idma64.h
 create mode 100644 drivers/mfd/intel-lpss-acpi.c
 create mode 100644 drivers/mfd/intel-lpss-pci.c
 create mode 100644 drivers/mfd/intel-lpss.c
 create mode 100644 drivers/mfd/intel-lpss.h

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
--
To unsubscribe from this list: send the line "unsubscribe linux-acpi" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html