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Subject[RFC 00/17] ARM: provide common arch init for DT clocks
Date
This RFC converts arch/arm to provide a common arch init for DT clock
providers. Currently, the call to of_clk_init(NULL) to initialize DT
clock providers is spread among several mach-dirs. Since most machs
require DT clocks initialized before timers, no initcall can be used.

By adding of_clk_init(NULL) to ARM time_init(), we can remove all
mach-specific .init_time hooks that basically called of_clk_init before
starting timers. Some machs use the hook for more initialization, that
has been moved to other hooks where required.

The only exception is mach-tegra which requires clocks even earlier in
.init_irq. To allow machs to call clk_of_init at any time earlier than
time_init(), we first need to ensure drivers in __clk_of_table are only
initialized once.

The RFC is based on next-20130819 to catch up with future clock related
changes. It has been tested on mach-mvebu and compile tested for all the
other machs modified. All single patches have also been sent to the
respective maintainers.

Although some patches also modify files in mach-foo and drivers/clk, I
decided to keep them in a single patch to also show what would be
required for a common arch clock init.

Sebastian Hesselbarth (17):
clk: ensure __clk_of_table is only initialized once
ARM: call clk_of_init from time_init
ARM: dove: remove custom .init_time hook
ARM: exynos: remove custom .init_time hook
ARM: highbank: remove custom .init_time hook
ARM: imx: remove custom .init_time hook
ARM: kirkwood: remove custom .init_time hook
ARM: mvebu: remove custom .init_time hook
ARM: mxs: remove custom .init_time hook
ARM: nspire: remove custom .init_time hook
ARM: rockchip: remove custom .init_time hook
ARM: socfpga: remove custom .init_time hook
ARM: sti: remove custom .init_time hook
ARM: tegra: remove .init_time hook to clocksource_of_init
ARM: vexpress: remove custom .init_time hook
clk: vt8500: remove call to of_clk_init
clk: zynq: remove call to of_clk_init

arch/arm/kernel/time.c | 4 ++++
arch/arm/mach-dove/board-dt.c | 16 +---------------
arch/arm/mach-exynos/common.c | 7 -------
arch/arm/mach-exynos/common.h | 1 -
arch/arm/mach-exynos/mach-exynos4-dt.c | 1 -
arch/arm/mach-exynos/mach-exynos5-dt.c | 1 -
arch/arm/mach-highbank/highbank.c | 23 +++++++----------------
arch/arm/mach-imx/clk-imx51-imx53.c | 12 ------------
arch/arm/mach-imx/common.h | 2 --
arch/arm/mach-imx/imx51-dt.c | 6 ------
arch/arm/mach-imx/mach-imx53.c | 6 ------
arch/arm/mach-imx/mach-imx6q.c | 14 +++-----------
arch/arm/mach-imx/mach-imx6sl.c | 7 -------
arch/arm/mach-imx/mach-vf610.c | 9 ---------
arch/arm/mach-kirkwood/board-dt.c | 8 --------
arch/arm/mach-mvebu/armada-370-xp.c | 11 +----------
arch/arm/mach-mxs/mach-mxs.c | 13 -------------
arch/arm/mach-nspire/nspire.c | 9 ---------
arch/arm/mach-rockchip/rockchip.c | 9 ---------
arch/arm/mach-socfpga/socfpga.c | 2 --
arch/arm/mach-sti/board-dt.c | 10 ++++------
arch/arm/mach-tegra/tegra.c | 2 --
arch/arm/mach-vexpress/v2m.c | 14 +-------------
drivers/clk/clk-highbank.c | 10 +++++++---
drivers/clk/clk-vt8500.c | 2 --
drivers/clk/clk.c | 8 +++++++-
drivers/clk/mxs/clk-imx23.c | 16 +++++++---------
drivers/clk/mxs/clk-imx28.c | 16 ++++++++--------
drivers/clk/zynq/clkc.c | 1 -
drivers/clocksource/time-armada-370-xp.c | 7 +++----
include/linux/clk/mxs.h | 2 --
include/linux/time-armada-370-xp.h | 16 ----------------
32 files changed, 53 insertions(+), 212 deletions(-)
delete mode 100644 include/linux/time-armada-370-xp.h

---
Cc: Mike Turquette <mturquette@linaro.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
--
1.7.10.4



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