[v11,0/6] Add support for Qualcomm A53 CPU clock

This patchset adds support for the A53 CPU clock on MSM8916 platforms
and allows scaling of the CPU frequency on msm8916 based platforms.

Changes since v10 (https://lkml.org/lkml/2017/12/1/577)
* Addressed Bjorn's comments on APCS clock driver.
* Picked Acks from Rob and Bjorn.

Changes since v9 (https://lkml.org/lkml/2017/9/21/511)
* Added the clock properties to the APCS DT node, instead of adding a subnode
and also replaced patch "mailbox: qcom: Populate APCS child platform devices"
with "mailbox: qcom: Create APCS child device for clock controller".
* Dropped patch "mailbox: qcom: Move the apcs struct into a separate header",
and use dev_get_regmap(dev->parent) in the child driver.
* Addressed Bjorn's comments on a53-pll and apcs-clk drivers.
* Added SPDX copyright identifiers.

Changes since v8 (https://lkml.org/lkml/2017/6/23/476)
 * Converted APCS mailbox driver to use regmap and to populate child
 platform devices that will handle the rest of the functionality
 provided by APCS block.
 * Picked Rob's Ack for the PLL binding.
 * Changed the APCS binding and put it into a separate patch.
 * Addressed review comments.
 * Minor changes.

Changes since v7 (https://lkml.org/lkml/2016/10/31/296)
 * Add the APCS clock controller to the APCS driver to expose both the
 mailbox and clock controller functionality as discussed earlier:
 https://lkml.org/lkml/2016/11/14/860
 * Changed the a53pll compatible string as suggested by Rob.

Changes since v6 (https://lkml.org/lkml/2016/9/7/347)
 * Addressed various comments from Stephen Boyd

Changes since v5 (https://lkml.org/lkml/2016/2/1/407)
 * Rebase to clk-next and update according to the recent API changes.

Changes since v4 (https://lkml.org/lkml/2015/12/14/367)
 * Convert to builtin drivers as now __clk_lookup() is used

Changes since v3 (https://lkml.org/lkml/2015/8/12/585)
 * Split driver into two parts - and separate A53 PLL and
   A53 clock controller drivers.
 * Drop the safe switch hook patch. Add a clock notifier in
   the clock provider to handle switching via safe mux and
   divider configuration.

Changes since v2 (https://lkml.org/lkml/2015/7/24/526)
 * Drop gpll0_vote patch.
 * Switch to the new clk_hw_* APIs.
 * Rebase to the current clk-next.

Changes since v1 (https://lkml.org/lkml/2015/6/12/193)
 * Drop SR2 PLL patch, as it is already applied.
 * Add gpll0_vote rate propagation patch.
 * Update/rebase patches to the current clk-next.

Georgi Djakov (6):
  mailbox: qcom: Convert APCS IPC driver to use regmap
  mailbox: qcom: Create APCS child device for clock controller
  clk: qcom: Add A53 PLL support
  clk: qcom: Add regmap mux-div clocks support
  dt-bindings: mailbox: qcom: Document the APCS clock binding
  clk: qcom: Add APCS clock controller support

 .../devicetree/bindings/clock/qcom,a53pll.txt      |  22 ++
 .../bindings/mailbox/qcom,apcs-kpss-global.txt     |  18 ++
 drivers/clk/qcom/Kconfig                           |  21 ++
 drivers/clk/qcom/Makefile                          |   3 +
 drivers/clk/qcom/a53-pll.c                         | 110 ++++++++++
 drivers/clk/qcom/apcs-msm8916.c                    | 149 ++++++++++++++
 drivers/clk/qcom/clk-regmap-mux-div.c              | 229 +++++++++++++++++++++
 drivers/clk/qcom/clk-regmap-mux-div.h              |  46 +++++
 drivers/mailbox/qcom-apcs-ipc-mailbox.c            |  35 +++-
 9 files changed, 628 insertions(+), 5 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/clock/qcom,a53pll.txt
 create mode 100644 drivers/clk/qcom/a53-pll.c
 create mode 100644 drivers/clk/qcom/apcs-msm8916.c
 create mode 100644 drivers/clk/qcom/clk-regmap-mux-div.c
 create mode 100644 drivers/clk/qcom/clk-regmap-mux-div.h

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On Tue, Dec 05, 2017 at 05:46:55PM +0200, Georgi Djakov wrote:
> This patchset adds support for the A53 CPU clock on MSM8916 platforms

> and allows scaling of the CPU frequency on msm8916 based platforms.

> 

> Changes since v10 (https://lkml.org/lkml/2017/12/1/577)

> * Addressed Bjorn's comments on APCS clock driver.

> * Picked Acks from Rob and Bjorn.


Errr, really?

Rob
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On 12/05, Georgi Djakov wrote:
> This patchset adds support for the A53 CPU clock on MSM8916 platforms

> and allows scaling of the CPU frequency on msm8916 based platforms.


Ok. I will apply just the clk ones? Patches 3,4, and 6?

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On 22.12.17 г. 2:49, Stephen Boyd wrote:
> On 12/05, Georgi Djakov wrote:

>> This patchset adds support for the A53 CPU clock on MSM8916 platforms

>> and allows scaling of the CPU frequency on msm8916 based platforms.

> 

> Ok. I will apply just the clk ones? Patches 3,4, and 6?

> 


Yes, i think this would be best. The rest should go through the mailbox tree.
Jassi, are you ok with this?

Thanks,
Georgi
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On 12/05, Georgi Djakov wrote:
> Add support for hardware that can switch both parent clock and divider

> at the same time. This avoids generating intermediate frequencies from

> either the old parent clock and new divider or new parent clock and

> old divider combinations.

> 

> Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>

> ---


Applied to clk-next

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