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Message-Id: <20210901050526.45673-1-samuel@sholland.org>
Date: Wed, 1 Sep 2021 00:05:18 -0500
From: Samuel Holland <samuel@...lland.org>
To: Maxime Ripard <mripard@...nel.org>, Chen-Yu Tsai <wens@...e.org>,
Jernej Skrabec <jernej.skrabec@...il.com>,
Michael Turquette <mturquette@...libre.com>,
Stephen Boyd <sboyd@...nel.org>
Cc: linux-arm-kernel@...ts.infradead.org, linux-clk@...r.kernel.org,
linux-sunxi@...ts.linux.dev, linux-kernel@...r.kernel.org,
Samuel Holland <samuel@...lland.org>
Subject: [PATCH 0/8] clk: sunxi-ng: Lifetime fixes and module support
This series makes the CCU drivers a bit better behaved, by allowing them
to be cleanly loaded/unloaded and bound/unbound without leaking memory
or crashing.
- Patches 1 fixes some object lifetime and reference counting issues
with the drivers.
- Patch 2 disarms a sysfs footgun.
- Patch 3 takes advantage of the structure added in patch 1 to improve
performance a bit by splitting up the lock.
- Patches 4-8 allow the drivers and CCU core to be built as modules.
As part of this, patch 7 converts most of the early OF providers to
platform drivers.
Samuel Holland (8):
clk: sunxi-ng: Unregister clocks/resets when unbinding
clk: sunxi-ng: Prevent unbinding CCUs via sysfs
clk: sunxi-ng: Use a separate lock for each CCU instance
clk: sunxi-ng: Rename files to match Kconfig and drivers
clk: sunxi-ng: Export symbols used by CCU drivers
clk: sunxi-ng: Allow drivers to be built as modules
clk: sunxi-ng: Convert early providers to platform drivers
clk: sunxi-ng: Allow the CCU core to be built as a module
drivers/clk/Makefile | 2 +-
drivers/clk/sunxi-ng/Kconfig | 39 +++----
drivers/clk/sunxi-ng/Makefile | 75 ++++++-------
drivers/clk/sunxi-ng/ccu_common.c | 101 +++++++++++++++---
drivers/clk/sunxi-ng/ccu_common.h | 6 +-
drivers/clk/sunxi-ng/ccu_div.c | 1 +
drivers/clk/sunxi-ng/ccu_gate.c | 1 +
drivers/clk/sunxi-ng/ccu_mp.c | 2 +
drivers/clk/sunxi-ng/ccu_mult.c | 1 +
drivers/clk/sunxi-ng/ccu_mux.c | 2 +
drivers/clk/sunxi-ng/ccu_nk.c | 1 +
drivers/clk/sunxi-ng/ccu_nkm.c | 1 +
drivers/clk/sunxi-ng/ccu_nkmp.c | 1 +
drivers/clk/sunxi-ng/ccu_nm.c | 1 +
drivers/clk/sunxi-ng/ccu_phase.c | 1 +
drivers/clk/sunxi-ng/ccu_reset.c | 1 +
.../{ccu-sun4i-a10.c => sun4i-a10-ccu.c} | 59 ++++++----
.../{ccu-sun4i-a10.h => sun4i-a10-ccu.h} | 0
.../{ccu-sun50i-a100.c => sun50i-a100-ccu.c} | 8 +-
.../{ccu-sun50i-a100.h => sun50i-a100-ccu.h} | 0
...cu-sun50i-a100-r.c => sun50i-a100-r-ccu.c} | 8 +-
...cu-sun50i-a100-r.h => sun50i-a100-r-ccu.h} | 0
.../{ccu-sun50i-a64.c => sun50i-a64-ccu.c} | 11 +-
.../{ccu-sun50i-a64.h => sun50i-a64-ccu.h} | 0
.../{ccu-sun50i-h6.c => sun50i-h6-ccu.c} | 11 +-
.../{ccu-sun50i-h6.h => sun50i-h6-ccu.h} | 0
.../{ccu-sun50i-h6-r.c => sun50i-h6-r-ccu.c} | 57 ++++++----
.../{ccu-sun50i-h6-r.h => sun50i-h6-r-ccu.h} | 0
.../{ccu-sun50i-h616.c => sun50i-h616-ccu.c} | 36 ++++---
.../{ccu-sun50i-h616.h => sun50i-h616-ccu.h} | 0
.../clk/sunxi-ng/{ccu-sun5i.c => sun5i-ccu.c} | 4 +-
.../clk/sunxi-ng/{ccu-sun5i.h => sun5i-ccu.h} | 0
.../{ccu-sun6i-a31.c => sun6i-a31-ccu.c} | 41 +++++--
.../{ccu-sun6i-a31.h => sun6i-a31-ccu.h} | 0
...cu-sun8i-a23-a33.h => sun8i-a23-a33-ccu.h} | 0
.../{ccu-sun8i-a23.c => sun8i-a23-ccu.c} | 36 +++++--
.../{ccu-sun8i-a33.c => sun8i-a33-ccu.c} | 41 +++++--
.../{ccu-sun8i-a83t.c => sun8i-a83t-ccu.c} | 11 +-
.../{ccu-sun8i-a83t.h => sun8i-a83t-ccu.h} | 0
.../{ccu-sun8i-de2.c => sun8i-de2-ccu.c} | 12 ++-
.../{ccu-sun8i-de2.h => sun8i-de2-ccu.h} | 0
.../{ccu-sun8i-h3.c => sun8i-h3-ccu.c} | 63 +++++++----
.../{ccu-sun8i-h3.h => sun8i-h3-ccu.h} | 0
.../sunxi-ng/{ccu-sun8i-r.c => sun8i-r-ccu.c} | 66 +++++++-----
.../sunxi-ng/{ccu-sun8i-r.h => sun8i-r-ccu.h} | 0
.../{ccu-sun8i-r40.c => sun8i-r40-ccu.c} | 10 +-
.../{ccu-sun8i-r40.h => sun8i-r40-ccu.h} | 0
.../{ccu-sun8i-v3s.c => sun8i-v3s-ccu.c} | 58 ++++++----
.../{ccu-sun8i-v3s.h => sun8i-v3s-ccu.h} | 0
.../{ccu-sun9i-a80.c => sun9i-a80-ccu.c} | 11 +-
.../{ccu-sun9i-a80.h => sun9i-a80-ccu.h} | 0
...{ccu-sun9i-a80-de.c => sun9i-a80-de-ccu.c} | 12 ++-
...{ccu-sun9i-a80-de.h => sun9i-a80-de-ccu.h} | 0
...cu-sun9i-a80-usb.c => sun9i-a80-usb-ccu.c} | 11 +-
...cu-sun9i-a80-usb.h => sun9i-a80-usb-ccu.h} | 0
...cu-suniv-f1c100s.c => suniv-f1c100s-ccu.c} | 39 +++++--
...cu-suniv-f1c100s.h => suniv-f1c100s-ccu.h} | 0
drivers/mmc/host/Kconfig | 1 +
include/linux/clk/sunxi-ng.h | 15 ---
59 files changed, 551 insertions(+), 306 deletions(-)
rename drivers/clk/sunxi-ng/{ccu-sun4i-a10.c => sun4i-a10-ccu.c} (98%)
rename drivers/clk/sunxi-ng/{ccu-sun4i-a10.h => sun4i-a10-ccu.h} (100%)
rename drivers/clk/sunxi-ng/{ccu-sun50i-a100.c => sun50i-a100-ccu.c} (99%)
rename drivers/clk/sunxi-ng/{ccu-sun50i-a100.h => sun50i-a100-ccu.h} (100%)
rename drivers/clk/sunxi-ng/{ccu-sun50i-a100-r.c => sun50i-a100-r-ccu.c} (97%)
rename drivers/clk/sunxi-ng/{ccu-sun50i-a100-r.h => sun50i-a100-r-ccu.h} (100%)
rename drivers/clk/sunxi-ng/{ccu-sun50i-a64.c => sun50i-a64-ccu.c} (99%)
rename drivers/clk/sunxi-ng/{ccu-sun50i-a64.h => sun50i-a64-ccu.h} (100%)
rename drivers/clk/sunxi-ng/{ccu-sun50i-h6.c => sun50i-h6-ccu.c} (99%)
rename drivers/clk/sunxi-ng/{ccu-sun50i-h6.h => sun50i-h6-ccu.h} (100%)
rename drivers/clk/sunxi-ng/{ccu-sun50i-h6-r.c => sun50i-h6-r-ccu.c} (87%)
rename drivers/clk/sunxi-ng/{ccu-sun50i-h6-r.h => sun50i-h6-r-ccu.h} (100%)
rename drivers/clk/sunxi-ng/{ccu-sun50i-h616.c => sun50i-h616-ccu.c} (98%)
rename drivers/clk/sunxi-ng/{ccu-sun50i-h616.h => sun50i-h616-ccu.h} (100%)
rename drivers/clk/sunxi-ng/{ccu-sun5i.c => sun5i-ccu.c} (99%)
rename drivers/clk/sunxi-ng/{ccu-sun5i.h => sun5i-ccu.h} (100%)
rename drivers/clk/sunxi-ng/{ccu-sun6i-a31.c => sun6i-a31-ccu.c} (98%)
rename drivers/clk/sunxi-ng/{ccu-sun6i-a31.h => sun6i-a31-ccu.h} (100%)
rename drivers/clk/sunxi-ng/{ccu-sun8i-a23-a33.h => sun8i-a23-a33-ccu.h} (100%)
rename drivers/clk/sunxi-ng/{ccu-sun8i-a23.c => sun8i-a23-ccu.c} (97%)
rename drivers/clk/sunxi-ng/{ccu-sun8i-a33.c => sun8i-a33-ccu.c} (97%)
rename drivers/clk/sunxi-ng/{ccu-sun8i-a83t.c => sun8i-a83t-ccu.c} (99%)
rename drivers/clk/sunxi-ng/{ccu-sun8i-a83t.h => sun8i-a83t-ccu.h} (100%)
rename drivers/clk/sunxi-ng/{ccu-sun8i-de2.c => sun8i-de2-ccu.c} (98%)
rename drivers/clk/sunxi-ng/{ccu-sun8i-de2.h => sun8i-de2-ccu.h} (100%)
rename drivers/clk/sunxi-ng/{ccu-sun8i-h3.c => sun8i-h3-ccu.c} (97%)
rename drivers/clk/sunxi-ng/{ccu-sun8i-h3.h => sun8i-h3-ccu.h} (100%)
rename drivers/clk/sunxi-ng/{ccu-sun8i-r.c => sun8i-r-ccu.c} (87%)
rename drivers/clk/sunxi-ng/{ccu-sun8i-r.h => sun8i-r-ccu.h} (100%)
rename drivers/clk/sunxi-ng/{ccu-sun8i-r40.c => sun8i-r40-ccu.c} (99%)
rename drivers/clk/sunxi-ng/{ccu-sun8i-r40.h => sun8i-r40-ccu.h} (100%)
rename drivers/clk/sunxi-ng/{ccu-sun8i-v3s.c => sun8i-v3s-ccu.c} (96%)
rename drivers/clk/sunxi-ng/{ccu-sun8i-v3s.h => sun8i-v3s-ccu.h} (100%)
rename drivers/clk/sunxi-ng/{ccu-sun9i-a80.c => sun9i-a80-ccu.c} (99%)
rename drivers/clk/sunxi-ng/{ccu-sun9i-a80.h => sun9i-a80-ccu.h} (100%)
rename drivers/clk/sunxi-ng/{ccu-sun9i-a80-de.c => sun9i-a80-de-ccu.c} (97%)
rename drivers/clk/sunxi-ng/{ccu-sun9i-a80-de.h => sun9i-a80-de-ccu.h} (100%)
rename drivers/clk/sunxi-ng/{ccu-sun9i-a80-usb.c => sun9i-a80-usb-ccu.c} (95%)
rename drivers/clk/sunxi-ng/{ccu-sun9i-a80-usb.h => sun9i-a80-usb-ccu.h} (100%)
rename drivers/clk/sunxi-ng/{ccu-suniv-f1c100s.c => suniv-f1c100s-ccu.c} (96%)
rename drivers/clk/sunxi-ng/{ccu-suniv-f1c100s.h => suniv-f1c100s-ccu.h} (100%)
--
2.31.1
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