This patch set restructures the common pinctrl driver part of mvebu to allow SoC specific controls to handle their own resources. Currently, the common driver maps a single resource passed by DT while the SoC specific controls cannot access that resource. To achieve the removal of knowledge of resources in the common driver, we first need to rework how SoC specific and common get/set callbacks are handled.
The patch set is based on two patch sets sent earlier [1][2] but drops any Dove specific removal of hardcoded addresses. This allows to have a clear view on the structural changes now and Dove specific changes later on. The Dove specific patches will be re-sent on top of this one, as soon as we are all happy with the resource allcation restruturing. Also, in the meantime, pinctrl driver stubs for new Armada 375/28x have been posted [3]. Before any of this patches move to a stable branch, I plan to send an updated version comprising the required patches for the new SoCs. As the new driver stubs are very much like what we already have for Armada 370/XP, let's only discuss the general approach now and add the branch dependency and patches later. Patches 1-3 first deal with the way we handle unnamed "generic" mpp controls. Patch 1 consolidates the per-control allocation of name buffers to counting unnamed controls first and then allocate a global name buffer for all those controls. Patch 2 then removes the now obsolete per-control allocation of name buffers. Patch 3 then makes the common driver to identify "generic" mpp controls by an empty name and adds some valuable comments about that special treatment. Patch 4 removes passing struct mvebu_mpp_ctrl to the special callback as the only relevant information in that struct for the callback is the pin number which is passed directly instead. Patches 5-9 then add some global defines and provide SoC specific callbacks even for the "generic" mpp controls. This allows Patch 10 to move resource allocation to SoC specific drivers and remove the common generic callbacks in Patch 11. Patches 12-13 finally apply some consolidation and reuse patches to Dove SoC driver that are now possible. The patches are still based on pre-v3.14 but still apply cleanly on v3.14-rc2 of course. They are also available on an *unstable* branch at https://github.com/shesselba/linux-dove.git unstable/mvebu-pinctrl-v3.14_v3 As always they have been tested on Dove, compile-tested for the others, and Andrew was so kind to give his Tested-by for common and Kirkwood patches. [1] http://www.spinics.net/lists/arm-kernel/msg303496.html [2] lkml.org/lkml/2014/1/27/562 [3] http://www.spinics.net/lists/arm-kernel/msg306409.html Sebastian Hesselbarth (13): pinctrl: mvebu: count unnamed controls and allocate name buffer pinctrl: mvebu: remove obsolete per-control name buffer allocation pinctrl: mvebu: identify generic controls by name pinctrl: mvebu: remove passing mvebu_mpp_ctrl to callbacks pinctrl: mvebu: add common mpp reg defines to mvebu pinctrl include pinctrl: mvebu: dove: provide generic mpp callbacks pinctrl: mvebu: kirkwood: provide generic mpp callbacks pinctrl: mvebu: armada-370: provide generic mpp callbacks pinctrl: mvebu: armada-xp: provide generic mpp callbacks pinctrl: mvebu: move resource allocation to SoC specific drivers pinctrl: mvebu: remove common get/set functions pinctrl: mvebu: dove: consolidate auto-numbered pmu mpp ranges pinctrl: mvebu: dove: reuse mpp_{set,get} in pmu callbacks drivers/pinctrl/mvebu/pinctrl-armada-370.c | 32 ++++++- drivers/pinctrl/mvebu/pinctrl-armada-xp.c | 32 ++++++- drivers/pinctrl/mvebu/pinctrl-dove.c | 145 ++++++++++++++--------------- drivers/pinctrl/mvebu/pinctrl-kirkwood.c | 37 +++++++- drivers/pinctrl/mvebu/pinctrl-mvebu.c | 122 ++++++++---------------- drivers/pinctrl/mvebu/pinctrl-mvebu.h | 12 ++- 6 files changed, 212 insertions(+), 168 deletions(-) --- Cc: Linus Walleij <linus.wall...@linaro.org> Cc: Jason Cooper <ja...@lakedaemon.net> Cc: Andrew Lunn <and...@lunn.ch> Cc: Gregory Clement <gregory.clem...@free-electrons.com> Cc: Thomas Petazzoni <thomas.petazz...@free-electrons.com> Cc: Ezequiel Garcia <ezequiel.gar...@free-electrons.com> Cc: linux-arm-ker...@lists.infradead.org Cc: linux-kernel@vger.kernel.org -- 1.8.5.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
