[PATCH 0/4] clk: mvebu: fix clk init order

Hi Sebastian,

On 25/01/2014 19:19, Sebastian Hesselbarth wrote:

This patch set fixes clk init order that went upside-down with
v3.14. I haven't really investigated what caused this, but I assume
it is related with DT node reordering by addresses.

Can you explain what kind of issue do you observe?

I have just tested the master branch of Linus and (excepted for SATA
but Andrew will send a patch set soon), I didn't experiment any
issues on Armada 370 and Armada XP based boards.

Thanks,

Gregory

Anyway, with v3.14 for MVEBU SoCs, the clock gating driver gets
registered before core clocks driver. Unfortunately, we cannot
return -EPROBE_DEFER in drivers initialized by clk_of_init. As the
init order for our drivers is always core clocks before clock gating,
we maintain init order ourselves by hooking CLK_OF_DECLARE to one
init function that will register core clocks before clock gating
driver.

This patch is based on pre-v3.14-rc1 mainline and should go in as
fixes for it. As we now send MVEBU clk pull-requests to Mike directly,
I suggest Jason picks it up as a topic branch.

The patches have been boot tested on Dove and compile-tested only
for Kirkwood, Armada 370 and XP.

Sebastian Hesselbarth (4):
  clk: mvebu: armada-370: maintain clock init order
  clk: mvebu: armada-xp: maintain clock init order
  clk: mvebu: dove: maintain clock init order
  clk: mvebu: kirkwood: maintain clock init order

 drivers/clk/mvebu/armada-370.c | 21 ++++++++++-----------
 drivers/clk/mvebu/armada-xp.c  | 20 +++++++++-----------
 drivers/clk/mvebu/dove.c       | 19 +++++++++----------
 drivers/clk/mvebu/kirkwood.c   | 34 ++++++++++++++++------------------
 4 files changed, 44 insertions(+), 50 deletions(-)

---
Cc: Mike Turquette <redacted>
Cc: Jason Cooper <redacted>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Gregory Clement <redacted>
Cc: Thomas Petazzoni <redacted>
Cc: Ezequiel Garcia <redacted>
Cc: linux-arm-kernel at lists.infradead.org
Cc: linux-kernel at vger.kernel.org

-- 
Gregory Clement, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com