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Adds support for fixed-factor clock providers which have not been
enabled via of_clk_init().
This is required by Device trees overlays that introduce clocks
providers.
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
[sboyd@codeaurora.org: Make new private function static, don't
check clk for NULL when unregistering in driver remove]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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Some clock providers can be initialized via of_clk_init() and also via
platform device probe.
Avoid double initialization of them by setting the OF_POPULATED flag.
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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This driver initializes a clock provider via sun8i_a23_apb0_setup
and then continues the initialization on sun8i_a23_apb0_clk_probe.
Use the new macro to notify the clk subsystem about this behaviour.
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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This driver initializes a clock provider via sun4i_a10_mod0_setup
and then continues the initialization on sun4i_a10_mod0_clk_probe.
Use the new macro to notify the clk subsystem about this behaviour.
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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This driver initializes a clock provider via lpc18xx_creg_clk_init
and then continues the initialization on lpc18xx_creg_clk_probe.
Use the new macro to notify the clk subsystem about this behaviour.
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
[sboyd@codeaurora.org: s/npx/nxp/ in subject]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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This driver initializes a clock provider via of_artpec6_clkctrl_setup
and then continues the initialization on artpec6_clkctrl_probe.
Use the new macro to notify the clk subsystem about this behaviour.
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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clk-divider uses clk_readl()/clk_writel() everywhere, except in
clk_divider_round_rate(), where plain readl() is used. Change this to
clk_readl(), as it makes a difference on powerpc.
Fixes: e6d5e7d90be92cee ("clk-divider: Fix READ_ONLY when divider > 1")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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Sorry to refer incorrect clock diagram, we double check it that the bits
configuration of the Xpll_aclk_perihp_src need to be fixed:
bit 1 - shows aclk_perihp_cpll_src_en
bit 0 - shows aclk_perihp_gpll_src_en
Through the testing that plug/unplug the USB ethernet cable on the RK3399 kevin board.
1. the hclk_host0 and hclk_host1 are endpoint clocks:
cpll --> G5[1] --> aclk_perihp_cpll_src --\ |--> hclk_host0
| --> ... ---> |
gpll --> G5[0] --> aclk_perihp_gpll_src --/ |--> hclk_host1
2. there is no clock below the cpll_aclk_perihp_src,
and the hclk_hostX are below the gpll_aclk_perihp_src:
pll_cpll 1 1 800000000 0 0
cpll 7 19 800000000 0 0
cpll_aclk_perihp_src 0 0 800000000 0 0
...
pll_gpll 1 1 594000000 0 0
gpll 10 10 594000000 0 0
gpll_aclk_perihp_src 2 2 594000000 0 0
hclk_perihp 5 5 74250000 0 0
hclk_host1_arb 2 2 74250000 0 0
hclk_host1 2 2 74250000 0 0
hclk_host0_arb 2 2 74250000 0 0
hclk_host0 2 2 74250000 0 0
3. by default, G5[0] and G5[1] are enabled:
localhost ~ # mem r 0xff760314
0x000003e0
4. close the G5[1] (aclk_perihp_cpll_src), and plug/unplug USB ethernet cable,
the DUT still works well:
localhost ~ # mem w 0xff760314 0xffff03e2
localhost ~ # mem r 0xff760314
0x000003e2
plug/unplug, the work statue is ok
5. close the G5[0] (aclk_perihp_gpll_src), , and plug/unplug USB ethernet cable,
the DUT will be crashed:
localhost ~ # mem w 0xff760314 0xffff03e1
localhost ~ # mem r 0xff760314
0x000003e1
plug/unplug, the DUT is crashed
Summary:
bit 1 - shows aclk_perihp_cpll_src_en
bit 0 - shows aclk_perihp_gpll_src_en
Fixes: 3bd14ae9da91 ("clk: rockchip: fix incorrect parent for rk3399's {c,g}pll_aclk_perihp_src")
Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>
[here the clock-documentation in the manual was actually stating the wrong
bits and thus only Xing's testing above revealed the issue]
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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Dues to incorrect diagram, we need to fix incorrect bits for
(c/g)pll_aclk_emmc_src:
cpll_aclk_emmc_src --> G6[13]
gpll_aclk_emmc_src --> G6[12]
Fixes: 115510053e5e ("clk: rockchip: add clock controller for the RK3399")
Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>
Reviewed-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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Booting the kernel on a imx7s-warp leads to several warnings like these:
[ 0.000000] ------------[ cut here ]------------
[ 0.000000] WARNING: CPU: 0 PID: 0 at kernel/locking/lockdep.c:3536 lock_release+0x2f8/0x330
[ 0.000000] releasing a pinned lock
[ 0.000000] ------------[ cut here ]------------
[ 0.000000] WARNING: CPU: 0 PID: 0 at kernel/locking/lockdep.c:2722 trace_hardirqs_on_caller+0x1ac/0x1f4
[ 0.000000] DEBUG_LOCKS_WARN_ON(unlikely(early_boot_irqs_disabled))
[ 0.000000] ---[ end trace cb88537fdc8fa201 ]---
[ 0.000000] bad: scheduling from the idle thread!
[ 0.000000] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G W 4.7.0-rc7-next-20160715 #404
[ 0.000000] ------------[ cut here ]------------
[ 0.000000] WARNING: CPU: 0 PID: 0 at kernel/time/sched_clock.c:179 sched_clock_register+0x44/0x1f8
[ 0.000000] Modules linked in:
[ 0.000591] ------------[ cut here ]------------
[ 0.000610] WARNING: CPU: 0 PID: 0 at kernel/time/sched_clock.c:179 sched_clock_register+0x44/0x1f8
[ 0.002084] ------------[ cut here ]------------
[ 0.002104] WARNING: CPU: 0 PID: 0 at init/main.c:576 start_kernel+0x258/0x3b0
[ 0.002114] Interrupts were enabled early
This fix is along the same lines as 5e33ebff7edd ("clk: imx7d: do not
set parent of ethernet time/ref clocks") and the explanation from that
commit is:
"The reason for the warning is that setting the parent enables the ENET
PLL since we are using CLK_OPS_PARENT_ENABLE. Enabling the ENET PLL can
cause clk_pllv3_wait_lock to sleep. See also:
commit fc8726a2c021 ("clk: core: support clocks which requires parents
enable (part 2)")."
imx7s-warp does not even use the FEC interface, so we should not really
configure the parent of IMX7D_ENET_AXI_ROOT_SRC in the common MX7 clock
driver code.
The dts file should use the assigned-clocks/assigned-clock-parents method,
so simply remove the configuration of IMX7D_ENET_AXI_ROOT_SRC parent.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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It's always nice to see families reunited, and this is equally true when
talking about parent clocks and their children. However, if the orphan
clk had a positive prepare_count or enable_count, then we would not
migrate those counts up the parent chain correctly.
This has manifested with the recent critical clocks feature, which often
enables clocks very early, before their parents have been registered.
Fixed by replacing the call to clk_core_reparent with calls to
__clk_set_parent_{before,after}.
Cc: James Liao <jamesjj.liao@mediatek.com>
Cc: Erin Lo <erin.lo@mediatek.com>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
[sboyd@codeaurora.org: Recalc accuracies and rates too]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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According to the datasheet, SDn clocks are from the SDSRC clock. And
the SDSRC has a 1/2 divider. So, we should have ".sdsrc" as an internal
core clock. Otherwise, since the sdhi driver will calculate clock for
a sd card using the wrong parent clock rate, and then performance will
be not good.
Fixes: 90c073e53909da85 ("clk: shmobile: r8a7795: Add SD divider support")
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Acked-by: Dirk Behme <dirk.behme@de.bosch.com>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: stable@vger.kernel.org
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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The aclk_vio_noc should be put into critical list, as the interconnect
is not handled right now, but is required by VOP.
And the Type-C DP need these clocks: aclk_hdcp_noc, hclk_hdcp_noc,
pclk_hdcp_noc. Mark them as critical to avoid someone close them.
Signed-off-by: Chris Zhong <zyw@rock-chips.com>
Reviewed-by: Guenter Roeck <groeck@chromium.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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Fix incorrect rk3399 aclk_vio gating bit, it should be 0, not 10.
Fixes: 115510053e5e ("clk: rockchip: add clock controller for the RK3399")
Signed-off-by: Chris Zhong <zyw@rock-chips.com>
Reviewed-by: Xing Zheng <zhengxing@rock-chips.com>
Reviewed-by: Guenter Roeck <groeck@chromium.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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The condition passed to read*_poll_timeout() is the break condition,
i.e. wait for this condition to happen and return success.
The original code assumed the opposite, resulting in a warning when
the PLL clock rate was changed but never lost it's lock as far as
the readout indicated. This was verified by checking the read out
register value.
Fixes: 1d80c14248d6 ("clk: sunxi-ng: Add common infrastructure")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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This patch removes registration helpers and support files,
used for non-DT i.MX1 targets.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Add the module clock for the Watchdog Timer (WDT) controller on the
Renesas R-Car M3-W (r8a7796) SoC.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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Add all core clocks related to the Watchdog Timer (WDT) controller on
the Renesas R-Car M3-W (r8a7796) SoC: OSC, Internal RCLK, and RCLK.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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The MIPI mode of the MIPI-PLL on A31 is an NKM-style PLL with 2
selectable parents.
Add mux support to the NKM clock.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
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Some clocks have a predivider value that is larger than what u8 can
store. One such example is the OUT clk found on A20/A31, which has
a /750 pre-divider on one of the osc24M parents.
Increase the size of the div field to u16.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
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make C=2 reports:
CHECK drivers/clk/sunxi-ng/ccu_nk.c
drivers/clk/sunxi-ng/ccu_nk.c:17:6: warning: symbol 'ccu_nk_find_best' was
not declared. Should it be static?
ccu_nk_find_best is only used within ccu_nk.c. So make it static to get
rid of this warning.
Fixes: adbfb0056e03 ("clk: sunxi-ng: Add N-K-factor clock support")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
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The condition passed to read*_poll_timeout() is the break condition,
i.e. wait for this condition to happen and return success.
The original code assumed the opposite, resulting in a warning when
the PLL clock rate was changed but never lost it's lock as far as
the readout indicated. This was verified by checking the read out
register value.
Fixes: 1d80c14248d6 ("clk: sunxi-ng: Add common infrastructure")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
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In case of error, the function of_io_request_and_map() returns ERR_PTR()
and never returns NULL. The NULL test in the return value check should be
replaced with IS_ERR().
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
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In case of error, the functions clk_register_composite() and
clk_register_divider() returns ERR_PTR() and never returns NULL.
The NULL test in the return value check should be replaced with
IS_ERR().
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
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Add the general flags the pll list already contains to the clock init,
so that needed clock flags can be used for plls.
Signed-off-by: Heiko Stübner <heiko@sntech.de>
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allow aclk_pcie and aclk_perf_pcie disabled when unused.
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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We need to add more clocks for supporting more display resolution
for HDMI.
Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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There was only one use of __initdata_refok and __exit_refok
__init_refok was used 46 times against 82 for __ref.
Those definitions are obsolete since commit 312b1485fb50 ("Introduce new
section reference annotations tags: __ref, __refdata, __refconst")
This patch removes the following compatibility definitions and replaces
them treewide.
/* compatibility defines */
#define __init_refok __ref
#define __initdata_refok __refdata
#define __exit_refok __ref
I can also provide separate patches if necessary.
(One patch per tree and check in 1 month or 2 to remove old definitions)
[akpm@linux-foundation.org: coding-style fixes]
Link: http://lkml.kernel.org/r/1466796271-3043-1-git-send-email-fabf@skynet.be
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Pull ARM DT updates from Olof Johansson:
"Device tree contents continue to be the largest branches we submit.
This time around, some of the contents worth pointing out is:
New SoC platforms:
- Freescale i.MX 7Solo
- Broadcom BCM23550
- Cirrus Logic EP7209 and EP7211 (clps711x platforms)_
- Hisilicon HI3519
- Renesas R8A7792
Some of the other delta that is sticking out, line-count wise:
- Exynos moves of IP blocks under an SoC bus, which causes a large
delta due to indentation changes
- a new Tegra K1 board: Apalis
- a bunch of small updates to many Allwinner platforms; new hardware
support, some cleanup, etc"
* tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (426 commits)
ARM: dts: sun8i: Add dts file for inet86dz board
ARM: dts: sun8i: Add dts file for Polaroid MID2407PXE03 tablet
ARM: dts: sun8i: Use sun8i-reference-design-tablet for ga10h dts
ARM: dts: sun8i: Use sun8i-reference-design-tablet for polaroid mid2809pxe04
ARM: dts: sun8i: reference-design-tablet: Add drivevbus-supply
ARM: dts: Copy sun8i-q8-common.dtsi sun8i-reference-design-tablet.dtsi
ARM: dts: sun5i: Use sun5i-reference-design-tablet.dtsi for utoo p66 dts
ARM: dts: sun5i: Use sun5i-reference-design-tablet.dtsi for dit4350 dts
ARM: dts: sun5i: reference-design-tablet: Remove mention of q8
ARM: dts: sun5i: reference-design-tablet: Set lradc vref to avcc
ARM: dts: sun5i: Rename sun5i-q8-common.dtsi sun5i-reference-design-tablet.dtsi
ARM: dts: sun5i: Move q8 display bits to sun5i-a13-q8-tablet.dts
ARM: dts: sunxi: Rename sunxi-q8-common.dtsi sunxi-reference-design-tablet.dtsi
ARM: dts: at91: Don't build unnecessary dtbs
ARM: dts: at91: sama5d3x: separate motherboard gmac and emac definitions
ARM: dts: at91: at91sam9g25ek: fix isi endpoint node
ARM: dts: at91: move isi definition to at91sam9g25ek
ARM: dts: at91: fix i2c-gpio node name
ARM: dts: at91: vinco: fix regulator name
ARM: dts: at91: ariag25 : fix onewire node
...
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Pull ARM SoC driver updates from Olof Johansson:
"Driver updates for ARM SoCs.
A slew of changes this release cycle. The reset driver tree, that we
merge through arm-soc for historical reasons, is also sizable this
time around.
Among the changes:
- clps711x: Treewide changes to compatible strings, merged here for simplicity.
- Qualcomm: SCM firmware driver cleanups, move to platform driver
- ux500: Major cleanups, removal of old mach-specific infrastructure.
- Atmel external bus memory driver
- Move of brcmstb platform to the rest of bcm
- PMC driver updates for tegra, various fixes and improvements
- Samsung platform driver updates to support 64-bit Exynos platforms
- Reset controller cleanups moving to devm_reset_controller_register() APIs
- Reset controller driver for Amlogic Meson
- Reset controller driver for Hisilicon hi6220
- ARM SCPI power domain support"
* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (100 commits)
ARM: ux500: consolidate base platform files
ARM: ux500: move soc_id driver to drivers/soc
ARM: ux500: call ux500_setup_id later
ARM: ux500: consolidate soc_device code in id.c
ARM: ux500: remove cpu_is_u* helpers
ARM: ux500: use CLK_OF_DECLARE()
ARM: ux500: move l2x0 init to .init_irq
mfd: db8500 stop passing around platform data
ASoC: ab8500-codec: remove platform data based probe
ARM: ux500: move ab8500_regulator_plat_data into driver
ARM: ux500: remove unused regulator data
soc: raspberrypi-power: add CONFIG_OF dependency
firmware: scpi: add CONFIG_OF dependency
video: clps711x-fb: Changing the compatibility string to match with the smallest supported chip
input: clps711x-keypad: Changing the compatibility string to match with the smallest supported chip
pwm: clps711x: Changing the compatibility string to match with the smallest supported chip
serial: clps711x: Changing the compatibility string to match with the smallest supported chip
irqchip: clps711x: Changing the compatibility string to match with the smallest supported chip
clocksource: clps711x: Changing the compatibility string to match with the smallest supported chip
clk: clps711x: Changing the compatibility string to match with the smallest supported chip
...
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Pull ARM SoC platform updates from Olof Johansson:
"Improved and new platform support for various SoCs:
New SoC support:
- Broadcom BCM23550
- Freescale i.MX7Solo
- Qualcomm MDM9615
- Renesas r8a7792
Improvements:
- convert clps711x to multiplatform
- debug uart improvements for Atmel platforms
- Tango platform improvements: HOTPLUG_CPU, Suspend-to-ram
- OMAP tweaks and improvements to hwmod
- OMAP support for kexec on SMP"
* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (109 commits)
ARM: davinci: fix build break because of undeclared dm365_evm_snd_data
ARM: s3c64xx: smartq: Avoid sparse warnings
ARM: sti: Implement dummy L2 cache's write_sec
ARM: STi: Update machine _namestr to be more generic.
arm: meson: explicitly select clk drivers
ARM: tango: add Suspend-to-RAM support
ARM: hisi: consolidate the hisilicon machine entries
ARM: tango: fix CONFIG_HOTPLUG_CPU=n build
MAINTAINERS: Update BCM281XX/BCM11XXX/BCM216XX entry
MAINTAINERS: Update BCM63XX entry
MAINTAINERS: Add NS2 entry
MAINTAINERS: Fix nsp false-positives
MAINTAINERS: Change L to M for Broadcom ARM/ARM64 SoC entries
ARM: debug: Enable DEBUG_BCM_5301X for Northstar Plus SoCs
ARM: clps711x: Switch to MULTIPLATFORM
ARM: clps711x: Remove boards support
ARM: clps711x: Add basic DT support
ARM: clps711x: Reduce static map size
ARM: SAMSUNG: Constify iomem address passed to s5p_init_cpu
ARM: oxnas: Change OX810SE default driver config
...
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Sorting is hard.
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
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Since commit 1bdf02326b71e ("clk: at91: make use of syscon/regmap
internally"), clk_programmable_set_parent() is always selecting the
first parent (AKA slow_clk), no matter what's passed in the 'index'
parameter.
Fix that by initializing the pckr variable to the index value.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Reported-by: Hans Verkuil <hans.verkuil@cisco.com>
Fixes: 1bdf02326b71e ("clk: at91: make use of syscon/regmap internally")
Cc: <stable@vger.kernel.org>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
Link: lkml.kernel.org/r/1468828152-18389-1-git-send-email-boris.brezillon@free-electrons.com
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This reverts commit e16fb2e6355c1c1b41623af9e01ada196e2af098.
Updated documentation from the chip vendor reveals that this clock is
not required for correct operation of the MMC controller. As such, do
not expose it to DT.
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
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Merge "STi late updates for v4.8" from Patrice Chotard:
- Add STi DT critical clocks declaration
- Remove SPI hack wich has dependecy with critical clocks
These 2 STi DT patches and SPI hack MUST be applied after patches
contained into Stephen Boyd's branch clk-next/clk-st-critical.
This to ensure not to break SPI.
* tag 'sti-late-v4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/pchotard/sti:
spi: st-ssc4: Remove 'no clocking' hack
ARM: sti: stih410-clocks: Identify critical clocks
ARM: sti: stih407-family: Supply defines for CLOCKGEN A0
clk: st: clkgen-pll: Detect critical clocks
clk: st: clkgen-fsyn: Detect critical clocks
clk: st: clk-flexgen: Detect critical clocks
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Merge "Ux500 cleanups from Arnd" from Linus Walleij:
This is a set of cleanups for the Ux500 that reduce the number
of machine-local files and boardfile-type data for regulators
and ASoC.
* tag 'ux500-cleanup-bundle' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson:
ARM: ux500: consolidate base platform files
ARM: ux500: move soc_id driver to drivers/soc
ARM: ux500: call ux500_setup_id later
ARM: ux500: consolidate soc_device code in id.c
ARM: ux500: remove cpu_is_u* helpers
ARM: ux500: use CLK_OF_DECLARE()
ARM: ux500: move l2x0 init to .init_irq
mfd: db8500 stop passing around platform data
ASoC: ab8500-codec: remove platform data based probe
ARM: ux500: move ab8500_regulator_plat_data into driver
ARM: ux500: remove unused regulator data
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Any clock dependencies can be properly handled with deferred probing
so we can remove core_initcall and switch to a proper loadable platform
driver module.
This change has been tested on Exynos4412 Odroid U3 based board.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
Link: lkml.kernel.org/r/1467987300-31450-1-git-send-email-s.nawrocki@samsung.com
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The Kconfig currently controlling compilation of this code is:
arch/arm/mach-s5pv210/Kconfig:config ARCH_S5PV210
arch/arm/mach-s5pv210/Kconfig: bool "Samsung S5PV210/S5PC110" if ARCH_MULTI_V7
...meaning that it currently is not being built as a module by anyone.
Lets remove the modular code that is essentially orphaned, so that
when reading the driver there is no doubt it is builtin-only.
We explicitly disallow a driver unbind, since that doesn't have a
sensible use case anyway, and it allows us to drop the ".remove"
code for non-modular drivers.
Since this code is already not using module_init, case, the init
ordering remains unchanged with this commit.
We also delete the MODULE_LICENSE tags etc. since all that information
is already contained at the top of the file in the comments.
Cc: Tomasz Figa <tomasz.figa@gmail.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: linux-samsung-soc@vger.kernel.org
Cc: linux-clk@vger.kernel.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
Link: lkml.kernel.org/r/20160704211220.5685-8-paul.gortmaker@windriver.com
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Because the Exynos5433 SPI driver supports the ioclk handling and
the following patch:
http://marc.info/?l=linux-kernel&m=146787645626318&w=2
fixes a synchronus abort issue, none of the SPI clocks require
any critical handling: remove, then, the CLK_IGNORE_UNUSED flag
for the SPI related clocks.
Signed-off-by: Andi Shyti <andi.shyti@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
Link: lkml.kernel.org/r/1468317736-18841-8-git-send-email-andi.shyti@samsung.com
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The clk-oxnas driver is specific to its architecture, so do not
propose it on other architectures, unless build-testing.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
Link: lkml.kernel.org/r/20160707091844.196a7930@endymion
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All device trees currently in mainline specify the time clock parent
using the assigned-clocks/assigned-clock-parents method, there is no
need to statically assign the parent in the core clock driver.
Also all current boards provide an Ethernet reference clock for the
PHY externally, hence configuring the internal PHY reference clock.
Furthermore, and the actual driver of this patch, specify ethernet
related parents at that early point in boot leads to a warning:
bad: scheduling from the idle thread!
The reason for the warning is that setting the parent enables the ENET
PLL since we are using CLK_OPS_PARENT_ENABLE. Enabling the ENET PLL can
cause clk_pllv3_wait_lock to sleep. See also:
commit fc8726a2c021 ("clk: core: support clocks which requires parents
enable (part 2)").
Note that setting the ENET AXI root clock parent also requires ENET
PLL to be enabled. However, U-Boot typically leaves the ENET PLL on,
hence when the framework sets the parent of the first clock, it does
not need to wait for the PLL to come up. But because there is currently
no user of that clock, the PLL gets disabled after setting the parent.
Therefore, subsequent reparenting calls of any clock which somehow rely
on the ENET PLL, need to reenable the ENET PLL which leads to a sleep.
Removing those subsequent reparenting calls works around this issue.
Also remove comments. The code is really verbose enough.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Tested-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
Link: lkml.kernel.org/r/20160703174813.13970-1-stefan@agner.ch
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The ux500 DT support predates the CLK_OF_DECLARE macro and calls
directly into the clk driver from platform code.
Converting this to CLK_OF_DECLARE makes the code much nicer and
similar to how modern platforms do it today. It also removes the
last user of cpu_is_u8500_family() etc.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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The Kconfig symbol for the sun8i SoC family was mistyped. Fix that.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
Link: lkml.kernel.org/r/20160711203448.18062-2-maxime.ripard@free-electrons.com
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The code had a typo and got the wrong offset for the hardcoded divider, fix
that.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reported-by: Jean-Francois Moine <moinejf@free.fr>
Reported-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
Link: lkml.kernel.org/r/20160711203448.18062-1-maxime.ripard@free-electrons.com
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Add the list of clocks and resets found in the H3 CCU.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
Link: lkml.kernel.org/r/20160629190535.11855-14-maxime.ripard@free-electrons.com
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Introduce support for clocks that use a combination of two linear
multipliers (N and K factors), one linear divider (M) and one power of two
divider (P).
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
Link: lkml.kernel.org/r/20160629190535.11855-13-maxime.ripard@free-electrons.com
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