[PATCH 00/13] Enable CoreSight for the Ux500

[linus.walleij@linaro.org (Linus Walleij)]

This patch series enables the CoreSight blocks for the Ux500.

To do so I ran into a few obstacles, all resolved in this
series:

- The Ux500 have two distinct clocks clocking the CS blocks,
  APETRACECLK clocking the AHB interconnect, what is usually
  referred to as "apb_pclk" in the AMBA primecell abstraction
  layer, and another clock called APEATCLK which is connected
  to the actual ATCLK on the CS blocks. So I have to add
  handling for this second clock as only the PCLK is handled
  today.

- Doing so I need to use runtime PM, and I discovered that
  the current CS drivers go in and grab the PCLK from the
  AMBA primecell abstraction which is wrong: this shall be
  handled using runtime PM callbacks, see e.g.
  drivers/mmc/host/mmci.c. So I made a patch series fixing
  this. This also fixes the problem that the PCLK is left
  on since none of the drivers call pm_runtime_put() so
  the AMBA core can disable the PCLK, instead they are
  poking around with the PCLK themselves which is wrong.

Linus Walleij (13):
  coresight: etm: print what version of ETM/PTM is detected
  coresight: support the TPIU version found in Ux500
  coresight: etm: let runtime PM handle core clock
  coresight: tpiu: let runtime PM handle core clock
  coresight: etb: let runtime PM handle core clock
  coresight: funnel: let runtime PM handle core clock
  coresight: tmc: let runtime PM handle core clock
  coresight: etm: retrieve and handle atclk
  coresight: tpiu: retrieve and handle atclk
  coresight: etb: retrieve and handle atclk
  coresight: funnel: retrieve and handle atclk
  coresight: replicator: retrieve and handle atclk
  ARM: ux500: add CoreSight blocks to DTS file

 arch/arm/boot/dts/ste-dbx5x0.dtsi        | 129 +++++++++++++++++++++++++++++++
 drivers/coresight/coresight-etb10.c      |  74 +++++++++++-------
 drivers/coresight/coresight-etm.h        |   4 +-
 drivers/coresight/coresight-etm3x.c      | 102 +++++++++++++-----------
 drivers/coresight/coresight-funnel.c     |  63 +++++++++++----
 drivers/coresight/coresight-replicator.c |  43 +++++++++++
 drivers/coresight/coresight-tmc.c        |  20 ++---
 drivers/coresight/coresight-tpiu.c       |  62 +++++++++++----
 8 files changed, 376 insertions(+), 121 deletions(-)

-- 
1.9.3