[PATCH v2 00/13] clk_hw based clkdev/DT providers

Stephen Boyd
2016-04-21T22:22:16Z

We've mostly split the clk API between consumers and providers
along struct clk and struct clk_hw, but the registration and
clkdev/DT code is still struct clk focused. This series
lays the foundation for changing that design by making
clk_register() return an int instead of a struct clk and
clkdev/DT lookups take a struct clk_hw instead of a struct clk.

After this series is applied, we can avoid using struct clk
in provider drivers entirely, unless we want to use the consumer
APIs. There are quite a few registration callers, so this change
will require converting all of them. I plan to do that gradually
over the coming weeks, but I've included a change to qcom
platforms because I could easily test it and show how things
will work.

The first patch is a cleanup to the clkdev APIs that I found
while doing this work. I'd like to take that into clk-next
with Russell's ack.

Cc: Russell King <linux@arm.linux.org.uk>

Stephen Boyd (13):
clkdev: Remove clk_register_clkdevs()
clk: Add {devm_}clk_hw_{register,unregister}() APIs
clk: Add clk_hw OF clk providers
clkdev: Add clk_hw based registration APIs
clk: divider: Add hw based registration APIs
clk: gate: Add hw based registration APIs
clk: mux: Add hw based registration APIs
clk: fixed-factor: Add hw based registration APIs
clk: fractional-divider: Add hw based registration APIs
clk: composite: Add hw based registration APIs
clk: gpio: Add hw based registration APIs
clk: fixed-rate: Add hw based registration APIs
clk: qcom: Migrate to clk_hw based registration and OF APIs

Documentation/driver-model/devres.txt | 1 +
drivers/clk/clk-composite.c | 45 ++++++---
drivers/clk/clk-divider.c | 91 ++++++++++++++++--
drivers/clk/clk-fixed-factor.c | 42 +++++++--
drivers/clk/clk-fixed-rate.c | 44 +++++++--
drivers/clk/clk-fractional-divider.c | 40 +++++++-
drivers/clk/clk-gate.c | 43 +++++++--
drivers/clk/clk-gpio.c | 52 ++++++++---
drivers/clk/clk-mux.c | 57 ++++++++++--
drivers/clk/clk.c | 171 +++++++++++++++++++++++++++++++++-
drivers/clk/clkdev.c | 75 +++++++++++----
drivers/clk/qcom/clk-regmap.c | 5 +-
drivers/clk/qcom/clk-regmap.h | 3 +-
drivers/clk/qcom/common.c | 58 ++++++------
drivers/clk/qcom/gcc-msm8996.c | 9 +-
drivers/clk/qcom/mmcc-msm8996.c | 9 +-
include/linux/clk-provider.h | 93 ++++++++++++++++++
include/linux/clkdev.h | 7 +-
18 files changed, 716 insertions(+), 129 deletions(-)