linux/drivers/clk
Chen-Yu Tsai a17b9e4c9c clk: sunxi-ng: sun6i-a31: Force AHB1 clock to use PLL6 as parent
On the A31, the DMA engine only works if AHB1 is clocked from PLL6.
In addition, the hstimer is clocked from AHB1, and if AHB1 is clocked
from the CPU clock, and cpufreq is working, we get an unstable timer.

Force the AHB1 clock to use PLL6 as its parent. Previously this was done
in the device tree with the assigned-clocks and assigned-clocks-parent
bindings. However with this new monolithic driver, the system critical
clocks aren't exported through the device tree. The alternative is to
force this setting in the driver before the clocks are registered.

This is also done in newer versions of mainline U-boot. But people still
using an older version, or even the vendor version, can still hit this
issue. Hence the need to do it in the kernel as well.

Reported-by: Hans de Goede <hdegoede@redhat.com>
Reported-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Fixes: c6e6c96d8f ("clk: sunxi-ng: Add A31/A31s clocks")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2016-10-19 11:56:31 +02:00
..
at91 clk: at91: sckc: optimize boot time 2016-09-20 17:03:04 -07:00
axis clk: axis: Use new macro CLK_OF_DECLARE_DRIVER 2016-08-12 18:00:37 -07:00
axs10x clk/axs10x: Add I2S PLL clock driver 2016-05-06 10:35:04 -07:00
bcm clk: bcm: Add driver for BCM53573 ILP clock 2016-09-16 16:31:29 -07:00
berlin clk: berlin: Migrate to clk_hw based registration and OF APIs 2016-08-18 11:30:01 -07:00
h8300 clk: h8300: Migrate to clk_hw based registration APIs 2016-08-24 17:37:10 -07:00
hisilicon clk: hi6220: Change syspll and media_syspll clk to 1.19GHz 2016-07-06 15:20:31 -07:00
imx ARM: SoC cleanups for v4.9 2016-10-07 21:16:16 -07:00
ingenic clk: ingenic: Allow divider value to be divided 2016-05-12 14:48:25 -07:00
keystone clk: keystone: fix a trivial typo 2015-10-19 15:29:09 -07:00
loongson1 CLK: Add Loongson1C clock support 2016-09-23 14:49:21 -07:00
mediatek clk: mediatek: clk-mt8173: Unmap region obtained by of_iomap 2016-09-21 01:06:07 -07:00
meson ARM: SoC: late DT updates for v4.9 2016-10-07 21:34:49 -07:00
microchip clk: microchip: Initialize SOSC clock rate for PIC32MZDA. 2016-08-24 16:05:24 -07:00
mmp clk: mmp: add missing header dependencies 2016-09-14 11:16:59 -07:00
mvebu ARM: SoC driver updates for v4.9 2016-10-07 21:23:40 -07:00
mxs clk: mxs: Remove CLK_IS_ROOT 2016-03-02 17:44:59 -08:00
nxp clk: nxp: clk-lpc32xx: Unmap region obtained by of_iomap 2016-09-21 13:46:21 -07:00
pistachio clk: pistachio: correct critical clock list 2015-08-26 11:34:43 -07:00
pxa The clk changes for this release cycle are mostly dominated by 2016-03-23 06:06:45 -07:00
qcom clk: Add USB3 PHY reset lines 2016-09-16 16:19:50 -07:00
renesas clk/Renesas-MSTP: Use kmalloc_array() in cpg_mstp_clocks_init() 2016-09-16 16:13:09 -07:00
rockchip The biggest addition is probably the special clock-type for ddr clock 2016-09-06 18:12:24 -07:00
samsung clk: samsung: Add support for EPLL on exynos5410 2016-09-09 17:35:13 +02:00
sirf clk: sirf: Remove CLK_IS_ROOT 2016-04-15 16:50:04 -07:00
socfpga clk: socfpga: allow for multiple parents on Arria10 periph clocks 2016-02-22 14:17:37 -08:00
spear clk: spear: Remove CLK_IS_ROOT 2016-03-02 17:46:55 -08:00
st drivers: clk: st: Handle clk synchronous mode for video clocks 2016-09-16 16:01:41 -07:00
sunxi Merge branch 'clk-fixes' into clk-next 2016-09-08 12:57:10 -07:00
sunxi-ng clk: sunxi-ng: sun6i-a31: Force AHB1 clock to use PLL6 as parent 2016-10-19 11:56:31 +02:00
tegra clk: tegra: remove TEGRA_PLL_USE_LOCK for PLLD/PLLD2 2016-08-24 10:54:17 -07:00
ti ARM: DT updates for v4.8 2016-08-01 18:37:45 -04:00
uniphier clk: uniphier: add clock data for UniPhier SoCs 2016-09-16 16:31:38 -07:00
ux500 ARM: ux500: use CLK_OF_DECLARE() 2016-07-12 11:24:07 +02:00
versatile clk: versatile/icst: support for AP baseboard clocks 2016-08-29 11:38:51 -07:00
x86 clk: x86: Remove clkdev.h and clk.h includes 2016-03-03 11:27:26 -08:00
zte clk: zx296718: register driver earlier with core_initcall 2016-09-23 14:42:13 -07:00
zynq clk: zynq: Remove CLK_IS_ROOT 2016-03-02 17:48:26 -08:00
Kconfig clk: uniphier: add core support code for UniPhier clock driver 2016-09-16 16:31:33 -07:00
Makefile clk: Loongson1: Refactor Loongson1 clock 2016-09-23 14:48:56 -07:00
clk-asm9260.c clk: asm9260: Migrate to clk_hw based registration and OF APIs 2016-08-24 16:08:33 -07:00
clk-axi-clkgen.c clk: axi-clkgen: Migrate to clk_hw based OF and registration APIs 2016-08-24 16:10:31 -07:00
clk-axm5516.c clk: axm5516: Migrate to clk_hw based OF and registration APIs 2016-08-24 16:11:07 -07:00
clk-cdce706.c clk: cdce: Migrate to clk_hw based OF and registration APIs 2016-08-24 16:12:38 -07:00
clk-cdce925.c clk: cdce925: Migrate to clk_hw based OF and provider APIs 2016-08-24 17:18:13 -07:00
clk-clps711x.c clk: clps711x: Migrate to clk_hw based OF and registration APIs 2016-08-24 17:19:26 -07:00
clk-composite.c Merge branch 'clk-hw-register' (early part) into clk-next 2016-04-21 14:47:18 -07:00
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: cs2000: Migrate to clk_hw based OF and registration APIs 2016-08-24 17:20:31 -07:00
clk-devres.c
clk-divider.c clk: divider: Fix clk_divider_round_rate() to use clk_readl() 2016-08-12 17:33:09 -07:00
clk-efm32gg.c clk: efm32gg: Migrate to clk_hw based OF and registration APIs 2016-08-24 17:21:48 -07:00
clk-fixed-factor.c clk: fixed-factor: Remove export symbol on setup function 2016-08-15 15:08:03 -07:00
clk-fixed-rate.c clk: fixed-rate: Remove export symbol on setup function 2016-08-15 15:08:06 -07:00
clk-fractional-divider.c clk: fractional-divider: Add hw based registration APIs 2016-04-19 16:56:28 -07:00
clk-gate.c clk: gate: Add hw based registration APIs 2016-04-19 16:55:01 -07:00
clk-gpio.c clk: gpio: Add hw based registration APIs 2016-04-19 16:56:28 -07:00
clk-highbank.c clk: highbank: Migrate to clk_hw based registration and OF APIs 2016-06-30 12:25:28 -07:00
clk-max77686.c clk: max77686: Migrate to clk_hw based OF and registration APIs 2016-08-18 16:42:36 -07:00
clk-mb86s7x.c clk: mb86s7x: Migrate to clk_hw based OF and registration APIs 2016-08-24 17:23:01 -07:00
clk-moxart.c clk: moxart: Migrate to clk_hw based OF and registration APIs 2016-08-24 17:23:20 -07:00
clk-multiplier.c clk: multiplier: Prevent the multiplier from under / over flowing 2016-06-20 13:00:00 -07:00
clk-mux.c clk: mux: Add hw based registration APIs 2016-04-19 16:55:01 -07:00
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: nspire: Migrate to clk_hw based OF and registration APIs 2016-08-24 17:23:21 -07:00
clk-oxnas.c clk: oxnas: make it explicitly non-modular 2016-07-06 15:20:33 -07:00
clk-palmas.c clk: palmas: Migrate to clk_hw based OF and registration APIs 2016-08-24 17:23:23 -07:00
clk-pwm.c clk: pwm: Migrate to clk_hw based OF and registration APIs 2016-08-24 17:23:27 -07:00
clk-qoriq.c clk: qoriq: fix a register offset error 2016-08-18 16:52:24 -07:00
clk-rk808.c clk: rk808: Pass the right pointer as the get_hw context 2016-09-09 11:07:07 -07:00
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: scpi: Migrate to clk_hw based OF and registration APIs 2016-08-24 17:29:58 -07:00
clk-si514.c clk: si514: Migrate to clk_hw based OF and registration APIs 2016-08-24 17:29:59 -07:00
clk-si570.c clk: si570: Migrate to clk_hw based OF and registration APIs 2016-08-24 17:30:01 -07:00
clk-si5351.c clk: si5351: Migrate to clk_hw based OF and registration APIs 2016-08-24 17:30:00 -07:00
clk-si5351.h clk: si5351: remove variant from platform_data 2014-01-27 11:20:22 -08:00
clk-stm32f4.c clk: stm32f4: fix error handling 2016-07-06 17:55:31 -07:00
clk-tango4.c clk: tango4: improve clkgen driver 2016-04-15 17:16:06 -07:00
clk-twl6040.c clk: twl6040: Migrate to clk_hw based registration APIs 2016-08-24 17:34:11 -07:00
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: Migrate to clk_hw based registration APIs 2016-08-24 17:35:48 -07:00
clk-wm831x.c clk: wm831x: Migrate to clk_hw based registration APIs 2016-08-24 17:35:53 -07:00
clk-xgene.c clk: xgene: Add PMD clock 2016-09-14 13:54:35 -07:00
clk.c clk: core: Force setting the phase delay when no change 2016-08-30 14:52:26 -07:00
clk.h clk: Replace of_clk_get_by_clkspec() with of_clk_get_from_provider() 2015-03-12 12:20:34 -07:00
clkdev.c treewide: replace obsolete _refok by __ref 2016-08-02 17:31:41 -04:00