From: Chen-Yu Tsai <w...@csie.org>
Hi everyone,
This is series is the first part of a large series (I haven't done the
rest) of patches to rewrite the clk parent relationship handling within
the sunxi-ng clk driver. This is based on Stephen's recent work allowing
clk drivers to specify clk parents using struct clk_hw * or parsing DT
phandles in the clk node.
This series can be split into a few major parts:
1) The first patch is a small fix for clk debugfs representation. This
was done before commit 1a079560b145 ("clk: Cache core in
clk_fetch_parent_index() without names") was posted, so it might or
might not be needed. Found this when checking my work using
clk_possible_parents.
2) A bunch of CLK_HW_INIT_* helper macros are added. These cover the
situations I encountered, or assume I will encounter, such as single
internal (struct clk_hw *) parent, single DT (struct clk_parent_data
.fw_name), multiple internal parents, and multiple mixed (internal +
DT) parents. A special variant for just an internal single parent is
added, CLK_HW_INIT_HWS, which lets the driver share the singular
list, instead of having the compiler create a compound literal every
time. It might even make sense to only keep this variant.
3) A bunch of CLK_FIXED_FACTOR_* helper macros are added. The rationale
is the same as the single parent CLK_HW_INIT_* helpers.
4) Bulk conversion of CLK_FIXED_FACTOR to use local parent references,
either struct clk_hw * or DT .fw_name types, whichever the hardware
requires.
5) The beginning of SUNXI_CCU_GATE conversion to local parent
references. This part is not done. They are included as justification
and examples for the shared list of clk parents case.
I realize this is going to be many patches every time I convert a clock
type. Going forward would the people involved prefer I send out
individual patches like this series, or squash them all together?
Stephen, would it make sense for you to pick up the first 7 patches that
touch the clk core? And then we can base our clk branch on top of those?
Thanks
ChenYu
Chen-Yu Tsai (25):
clk: Fix debugfs clk_possible_parents for clks without parent string
names
clk: Add CLK_HW_INIT_* macros using .parent_hws
clk: Add CLK_HW_INIT_FW_NAME macro using .fw_name in .parent_data
clk: Add CLK_HW_INIT_PARENT_DATA macro using .parent_data
clk: fixed-factor: Add CLK_FIXED_FACTOR_HW which takes clk_hw pointer
as parent
clk: fixed-factor: Add CLK_FIXED_FACTOR_HWS which takes list of struct
clk_hw *
clk: fixed-factor: Add CLK_FIXED_FACTOR_FW_NAME for DT clock-names
parent
clk: sunxi-ng: switch to of_clk_hw_register() for registering clks
clk: sunxi-ng: sun8i-r: Use local parent references for CLK_HW_INIT_*
clk: sunxi-ng: a10: Use local parent references for CLK_FIXED_FACTOR
clk: sunxi-ng: sun5i: Use local parent references for CLK_FIXED_FACTOR
clk: sunxi-ng: a31: Use local parent references for CLK_FIXED_FACTOR
clk: sunxi-ng: a23: Use local parent references for CLK_FIXED_FACTOR
clk: sunxi-ng: a33: Use local parent references for CLK_FIXED_FACTOR
clk: sunxi-ng: h3: Use local parent references for CLK_FIXED_FACTOR
clk: sunxi-ng: r40: Use local parent references for CLK_FIXED_FACTOR
clk: sunxi-ng: v3s: Use local parent references for CLK_FIXED_FACTOR
clk: sunxi-ng: sun8i-r: Use local parent references for
CLK_FIXED_FACTOR
clk: sunxi-ng: f1c100s: Use local parent references for
CLK_FIXED_FACTOR
clk: sunxi-ng: a64: Use local parent references for CLK_FIXED_FACTOR
clk: sunxi-ng: h6: Use local parent references for CLK_FIXED_FACTOR
clk: sunxi-ng: h6-r: Use local parent references for CLK_FIXED_FACTOR
clk: sunxi-ng: gate: Add macros for referencing local clock parents
clk: sunxi-ng: a80-usb: Use local parent references for SUNXI_CCU_GATE
clk: sunxi-ng: sun8i-r: Use local parent references for SUNXI_CCU_GATE
drivers/clk/clk.c | 10 ++-
drivers/clk/sunxi-ng/ccu-sun4i-a10.c | 39 ++++++---
drivers/clk/sunxi-ng/ccu-sun50i-a64.c | 41 +++++----
drivers/clk/sunxi-ng/ccu-sun50i-h6-r.c | 2 +-
drivers/clk/sunxi-ng/ccu-sun50i-h6.c | 69 +++++++++------
drivers/clk/sunxi-ng/ccu-sun5i.c | 34 +++++---
drivers/clk/sunxi-ng/ccu-sun6i-a31.c | 39 ++++++---
drivers/clk/sunxi-ng/ccu-sun8i-a23.c | 34 +++++---
drivers/clk/sunxi-ng/ccu-sun8i-a33.c | 34 +++++---
drivers/clk/sunxi-ng/ccu-sun8i-h3.c | 29 ++++---
drivers/clk/sunxi-ng/ccu-sun8i-r.c | 104 +++++++++++------------
drivers/clk/sunxi-ng/ccu-sun8i-r40.c | 46 ++++++----
drivers/clk/sunxi-ng/ccu-sun8i-v3s.c | 29 ++++---
drivers/clk/sunxi-ng/ccu-sun9i-a80-usb.c | 32 ++++---
drivers/clk/sunxi-ng/ccu-suniv-f1c100s.c | 29 ++++---
drivers/clk/sunxi-ng/ccu_common.c | 2 +-
drivers/clk/sunxi-ng/ccu_gate.h | 53 ++++++++++++
include/linux/clk-provider.h | 84 ++++++++++++++++++
18 files changed, 487 insertions(+), 223 deletions(-)
--
2.20.1
