[PATCH v9 0/7] Add support for Qualcomm A53 CPU clock

From: Georgi Djakov
Date: Thu Sep 21 2017 - 12:49:52 EST


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 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 (7):
mailbox: qcom: Convert APCS IPC driver to use regmap
mailbox: qcom: Populate APCS child platform devices
mailbox: qcom: Move the apcs struct into a separate header
clk: qcom: Add A53 PLL support
clk: qcom: Add regmap mux-div clocks support
dt-bindings: clock: Document qcom,apcs binding
clk: qcom: Add APCS clock controller support

.../devicetree/bindings/clock/qcom,a53pll.txt | 22 ++
.../devicetree/bindings/clock/qcom,apcs.txt | 27 +++
drivers/clk/qcom/Kconfig | 21 ++
drivers/clk/qcom/Makefile | 3 +
drivers/clk/qcom/a53-pll.c | 107 ++++++++++
drivers/clk/qcom/apcs-msm8916.c | 172 +++++++++++++++
drivers/clk/qcom/clk-regmap-mux-div.c | 237 +++++++++++++++++++++
drivers/clk/qcom/clk-regmap-mux-div.h | 54 +++++
drivers/mailbox/qcom-apcs-ipc-mailbox.c | 36 ++--
include/linux/mailbox/qcom-apcs.h | 34 +++
10 files changed, 700 insertions(+), 13 deletions(-)
create mode 100644 Documentation/devicetree/bindings/clock/qcom,a53pll.txt
create mode 100644 Documentation/devicetree/bindings/clock/qcom,apcs.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
create mode 100644 include/linux/mailbox/qcom-apcs.h