linux/drivers/clk
Lin Huang a4f182bf81 clk: rockchip: add new clock-type for the ddrclk
Changing the rate of the DDR clock needs special care, as the DDR
is of course in use and will react badly if the rate changes under it.

Over time different approaches to handle that were used.

Past SoCs like the rk3288 and before would store some code in SRAM
while the rk3368 used a SCPI variant and let a coprocessor handle that.

New rockchip platforms like the rk3399 have a dcf controller to do ddr
frequency scaling, and support for this controller will be implemented
in the arm-trusted-firmware.

This new clock-type should over time handle all these methods for
handling DDR rate changes, but right now it will concentrate on the
SIP interface used to talk to ARM trusted firmware.

The SIP interface counterpart was merged from pull-request #684 [0]
into the upstream arm-trusted-firmware codebase.

[0] https://github.com/ARM-software/arm-trusted-firmware/pull/684

Signed-off-by: Lin Huang <hl@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-09-01 11:23:56 +02:00
..
at91 Merge branch 'clk-fixes' into clk-next 2016-07-21 17:30:54 -07:00
axis
axs10x clk/axs10x: Add I2S PLL clock driver 2016-05-06 10:35:04 -07:00
bcm clk: bcm: iproc: Migrate to clk_hw based registration and OF APIs 2016-06-30 12:26:45 -07:00
berlin
h8300
hisilicon clk: hi6220: Change syspll and media_syspll clk to 1.19GHz 2016-07-06 15:20:31 -07:00
imx clk: imx7d: do not set parent of ethernet time/ref clocks 2016-07-12 15:31:14 -07:00
ingenic clk: ingenic: Allow divider value to be divided 2016-05-12 14:48:25 -07:00
keystone
mediatek clk: mediatek: remove hdmitx_dig_cts from TOP clocks 2016-05-06 17:47:42 +02:00
meson Merge branch 'clk-s905' into clk-next 2016-07-15 19:15:40 -07:00
microchip clk: microchip: Remove CLK_IS_ROOT 2016-06-01 14:52:54 -07:00
mmp
mvebu clk: mvebu: new driver for Armada CP110 system controller 2016-05-06 15:27:02 -07:00
mxs
nxp clk: lpc32xx: allow peripheral clock selection in device tree 2016-07-06 17:51:14 -07:00
pistachio
pxa
qcom clk: qcom: add EBI2 clocks to the MSM8660 GCC 2016-07-01 18:12:45 -07:00
renesas clk: renesas: r8a7795: Add THS/TSC clock 2016-06-21 09:21:06 +02:00
rockchip clk: rockchip: add new clock-type for the ddrclk 2016-09-01 11:23:56 +02:00
samsung clk: samsung: Allow modular build of the Audio Subsystem CLKCON driver 2016-07-13 14:59:53 -07:00
sirf
socfpga
spear
st clk: st: clkgen-pll: Detect critical clocks 2016-06-30 12:17:11 -07:00
sunxi Merge branch 'clk-fixes' into clk-next 2016-07-21 17:30:54 -07:00
sunxi-ng clk: sunxi-ng: h3: Fix Kconfig symbol typo 2016-07-11 14:35:16 -07:00
tegra clk: tegra: Initialize UTMI PLL when enabling PLLU 2016-06-30 17:43:17 +02:00
ti ARM: DT updates for v4.8 2016-08-01 18:37:45 -04:00
ux500 ARM: ux500: use CLK_OF_DECLARE() 2016-07-12 11:24:07 +02:00
versatile
x86
zte
zynq
clk-asm9260.c
clk-axi-clkgen.c
clk-axm5516.c
clk-cdce706.c
clk-cdce925.c
clk-clps711x.c clk: clps711x: Changing the compatibility string to match with the smallest supported chip 2016-07-06 17:38:13 +02:00
clk-composite.c
clk-conf.c clk: clk-conf: Fix error message when clock isn't found 2016-07-08 11:27:58 -07:00
clk-cs2000-cp.c
clk-devres.c
clk-divider.c
clk-efm32gg.c
clk-fixed-factor.c clk: fixed-factor: Allow for a few clocks to change the parent rate 2016-07-01 17:16:59 -07:00
clk-fixed-rate.c clk: fixed-rate: add clk_hw_unregister_fixed_rate() 2016-06-30 13:07:10 -07:00
clk-fractional-divider.c
clk-gate.c
clk-gpio.c
clk-highbank.c clk: highbank: Migrate to clk_hw based registration and OF APIs 2016-06-30 12:25:28 -07:00
clk-ls1x.c
clk-max77686.c
clk-max77802.c
clk-max-gen.c
clk-max-gen.h
clk-mb86s7x.c
clk-moxart.c
clk-multiplier.c clk: multiplier: Prevent the multiplier from under / over flowing 2016-06-20 13:00:00 -07:00
clk-mux.c
clk-nomadik.c clk: nomadik: Migrate to clk_hw based OF and registration APIs 2016-06-30 12:25:53 -07:00
clk-nspire.c
clk-oxnas.c clk: oxnas: make it explicitly non-modular 2016-07-06 15:20:33 -07:00
clk-palmas.c
clk-pwm.c clk: pwm: Use pwm_get_args() where appropriate 2016-05-17 14:45:00 +02:00
clk-qoriq.c
clk-rk808.c
clk-s2mps11.c clk: s2mps11: Migrate to clk_hw based OF and registration APIs 2016-06-30 12:29:14 -07:00
clk-scpi.c
clk-si514.c
clk-si570.c
clk-si5351.c
clk-si5351.h
clk-stm32f4.c clk: stm32f4: fix error handling 2016-07-06 17:55:31 -07:00
clk-tango4.c
clk-twl6040.c
clk-u300.c clk: u300: Migrate to clk_hw based registration APIs 2016-06-30 12:26:18 -07:00
clk-vt8500.c clk: vt8500: rework wm8650_find_pll_bits() 2016-06-20 17:47:53 -07:00
clk-wm831x.c
clk-xgene.c
clk.c clk: core: support clocks which requires parents enable (part 2) 2016-07-01 17:42:56 -07:00
clk.h
clkdev.c treewide: replace obsolete _refok by __ref 2016-08-02 17:31:41 -04:00
Kconfig clk: oxnas: Add hardware dependencies 2016-07-12 15:31:21 -07:00
Makefile clk: Makefile: re-sort and clean up 2016-07-19 09:53:52 -07:00