- Jul 26, 2014
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Sylwester Nawrocki authored
This patch adds helper functions to configure clock parents and rates as specified through 'assigned-clock-parents', 'assigned-clock-rates' DT properties for a clock provider or clock consumer device. The helpers are now being called by the bus code for the platform, I2C and SPI busses, before the driver probing and also in the clock core after registration of a clock provider. Signed-off-by:
Sylwester Nawrocki <s.nawrocki@samsung.com> Acked-by:
Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by:
Mike Turquette <mturquette@linaro.org>
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- Jul 24, 2014
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Mike Turquette authored
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- Jul 14, 2014
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Heiko Stübner authored
All known Rockchip SoCs have a reset controller in their CRUs, so it's helpful to have the reset controller framework selected by default, only be deselected by the user in special cases. Signed-off-by:
Heiko Stuebner <heiko@sntech.de> Acked-By:
Max Schwarz <max.schwarz@online.de> Tested-By:
Max Schwarz <max.schwarz@online.de> Signed-off-by:
Mike Turquette <mturquette@linaro.org>
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Heiko Stübner authored
Add the clock tree definition for the new rk3288 SoC. Signed-off-by:
Heiko Stuebner <heiko@sntech.de> Acked-By:
Max Schwarz <max.schwarz@online.de> Tested-By:
Max Schwarz <max.schwarz@online.de> Signed-off-by:
Mike Turquette <mturquette@linaro.org>
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Heiko Stübner authored
This adds the dt-binding documentation for the clock and reset unit found on Rockchip rk3288 SoCs. Signed-off-by:
Heiko Stuebner <heiko@sntech.de> Acked-By:
Max Schwarz <max.schwarz@online.de> Tested-By:
Max Schwarz <max.schwarz@online.de> Signed-off-by:
Mike Turquette <mturquette@linaro.org>
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Heiko Stübner authored
This adds a clock driver that handles the specific muxes, dividers and gates of rk3188 and rk3066 SoCs. The structure of the clock list resembles the arrangement of their counterparts in the clock architecture diagrams found in the SoC documentation. Clocks exported to the clock provider are currently limited to well known or measured ones. So additional clock exports may be necessary in the future. Signed-off-by:
Heiko Stuebner <heiko@sntech.de> Acked-By:
Max Schwarz <max.schwarz@online.de> Tested-By:
Max Schwarz <max.schwarz@online.de> Signed-off-by:
Mike Turquette <mturquette@linaro.org>
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Heiko Stübner authored
This add bindings documentation for the clock and reset unit found on rk3188 and rk3066 SoCs from Rockchip. Also deprecate the old gate clock binding, as these shouldn't be used in the future. Signed-off-by:
Heiko Stuebner <heiko@sntech.de> Acked-By:
Max Schwarz <max.schwarz@online.de> Tested-By:
Max Schwarz <max.schwarz@online.de> Signed-off-by:
Mike Turquette <mturquette@linaro.org>
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Heiko Stübner authored
All Rockchip SoCs at least down to the ARM9-based RK28xx include the reset- controller for SoC peripherals in their clock controller. While the older SoCs (ARM9 and Cortex-A8) use a regular scheme to change register values, the Cortex-A9 SoCs use a hiword-mask making locking unecessary. To be compatible with both schemes the reset controller takes a flag to decide which scheme to use, similar to the other HIWORD_MASK flags used in the clock framework. Signed-off-by:
Heiko Stuebner <heiko@sntech.de> Acked-By:
Max Schwarz <max.schwarz@online.de> Tested-By:
Max Schwarz <max.schwarz@online.de> Signed-off-by:
Mike Turquette <mturquette@linaro.org>
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Heiko Stübner authored
All known Rockchip SoCs down to the RK28xx (ARM9) use a similar pattern to handle their plls: |--\ xin32k ----------------|mux\ xin24m -----| pll |----|pll|--- pll output \---------------|src/ |--/ The pll output is sourced from 1 of 3 sources, the actual pll being one of them. To change the pll frequency it is imperative to remux it to another source beforehand. This is done by adding a clock-listener to the pll that handles the remuxing before and after the rate change. The output mux is implemented as a separate clock to make use of already existing common-clock features for disabling the pll if one of the other two sources is used. Signed-off-by:
Heiko Stuebner <heiko@sntech.de> Acked-By:
Max Schwarz <max.schwarz@online.de> Tested-By:
Max Schwarz <max.schwarz@online.de> Signed-off-by:
Mike Turquette <mturquette@linaro.org>
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Heiko Stübner authored
This adds infrastructure for registering clock branches. On Rockchip SoCs most clock branches are a combination of mux,divider and gate components, thus a composite clock is used when appropriate. Clock branches are supposed to be declared in an array using the COMPOSITE* or MUX, etc makros defined in the header and then registered using rockchip_clk_register_branches. Signed-off-by:
Heiko Stuebner <heiko@sntech.de> Acked-By:
Max Schwarz <max.schwarz@online.de> Tested-By:
Max Schwarz <max.schwarz@online.de> Signed-off-by:
Mike Turquette <mturquette@linaro.org>
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Mike Turquette authored
The function pointer population and sanity checking logic got a bit ugly with the advent of the .determine_rate callback. Clean it up. Signed-off-by:
Mike Turquette <mturquette@linaro.org>
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Heiko Stübner authored
This allows readl-only composite clocks by making mux_ops->set_parent and divider_ops->round_rate/set_rate optional. Signed-off-by:
Heiko Stuebner <heiko@sntech.de> Acked-By:
Max Schwarz <max.schwarz@online.de> Tested-By:
Max Schwarz <max.schwarz@online.de> Signed-off-by:
Mike Turquette <mturquette@linaro.org>
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Boris Brezillon authored
In case the rate_hw does not implement determine_rate, but only round_rate we fallback to best_parent selection if mux_hw is present and support reparenting. This also fixes a rate calculation problem when using the standard div and mux ops, as in this case currently only the mux->determine_rate is used in the composite rate calculation. So when for example the composite clock has two parents at 600 and 800MHz, the requested rate is 75MHz, which the divider could provide, without this change the rate would be set 600MHz ignoring the divider completely. This may be way out of spec for the component. Signed-off-by:
Boris BREZILLON <b.brezillon@overkiz.com> Signed-off-by:
Heiko Stuebner <heiko@sntech.de> [heiko@sntech.de: fixed output return a rate instead of the diff] Acked-By:
Max Schwarz <max.schwarz@online.de> Tested-By:
Max Schwarz <max.schwarz@online.de> Tested-by:
Gabriel Fernandez <gabriel.fernandez@linaro.org> Signed-off-by:
Mike Turquette <mturquette@linaro.org>
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- Jul 13, 2014
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Mike Turquette authored
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Thomas Gleixner authored
The uarts only work when the parent is ras_ahb_clk. The stale 3.5 based ST tree does this in the board file. Add it to the clk init function. Not pretty, but the mess there is amazing anyway. Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Acked-by:
Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by:
Mike Turquette <mturquette@linaro.org>
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Thomas Gleixner authored
The control register is at offset 0x10, not 0x0. This is wreckaged since commit 5df33a62 (SPEAr: Switch to common clock framework). Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Cc: stable@vger.kernel.org Acked-by:
Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by:
Mike Turquette <mturquette@linaro.org>
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- Jul 11, 2014
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Pratyush Anand authored
Follow dt clock naming convention for PCIe clocks. Signed-off-by:
Pratyush Anand <pratyush.anand@st.com> Acked-by:
Viresh Kumar <viresh.kumar@linaro.org> [viresh: fixed logs/cclist] Signed-off-by:
Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by:
Mike Turquette <mturquette@linaro.org>
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- Jul 08, 2014
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Mike Turquette authored
Merge tag 'tegra-clk-3.17-1' of git://nv-tegra.nvidia.com/user/pdeschrijver/linux into clk-next-tegra tegra clk updates for 3.17 including PLLE fixes for xusb
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Mikko Perttunen authored
Use a sequence for enabling hardware control of the SATA PLL that works both when using the SATA lane with SATA and when using it with XUSB. Signed-off-by:
Mikko Perttunen <mperttunen@nvidia.com>
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- Jul 04, 2014
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Mike Turquette authored
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- Jul 03, 2014
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Stephen Boyd authored
The HDMI PLL input to the tv mux is supposed to be 3, not 2. Fix the code so that we can properly select the HDMI PLL. Fixes: 6d00b56f "clk: qcom: Add support for MSM8960's multimedia clock controller (MMCC)" Reported-by:
Rob Clark <robdclark@gmail.com> Signed-off-by:
Stephen Boyd <sboyd@codeaurora.org> Signed-off-by:
Mike Turquette <mturquette@linaro.org>
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Peter De Schrijver authored
Define and export a new function clk_debugs_add_file which adds a file to a existing clock's debugfs directory. This can be used by clock providers to add debugfs entries which are not related to a specific clock type. Examples include the ability to measure the rate of a clock. It can also be used by modules to create new debugfs entries. This is useful if you want to expose features for testing which can potentially cause system instability such as allowing to change a clock's rate from userspace. Signed-off-by:
Peter De Schrijver <pdeschrijver@nvidia.com> Signed-off-by:
Mike Turquette <mturquette@linaro.org>
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Mike Turquette authored
Merge tag 'for_3.16/samsung-clk-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tfiga/samsung-clk into clk-fixes-samsung Samsung clock fixes for v3.16. This pull request contains fixes for various issues found while testing -rc versions of Linux 3.16. Mostly two kinds of patches: * Fixes of incorrectly defined clocks 1) a37c82a3 clk: samsung: exynos4: Remove SRC_MASK_ISP gates Issue present since v3.10. 2) 0b1643b3 clk/exynos5250: fix bit number for tv sysmmu clock Issue present since v3.16. 3) 44ff0254 clk: exynos5420: Remove aclk66_peric from the clock tree description Issue present since v3.11. * Adding things missed by original patches 1) cec1cdea clk: samsung: fix several typos to fix boot on s3c2410 2) 34ece9e6 clk: samsung: add more aliases for s3c24xx Both issues present since the driver was added in v3.16. 3) a92dda4b clk: s3c64xx: Hookup SPI clocks correctly Issue present since v3.12.
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Karol Wrona authored
s2mps11 clocks had registered callbacks for prepare ,unprepare and is_enabled. During disabling unused clocks the lack of is_prepared caused that unused s2mps11 clocks were not unprepared and stayed active. Regmap_read is cached so it can be called in is_prepare callback to achieve this information. Enabled field was removed from struct s2mps11_clk. Signed-off-by:
Karol Wrona <k.wrona@samsung.com> Signed-off-by:
Mike Turquette <mturquette@linaro.org>
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Alexandre Belloni authored
When the main crystal frequency is not set, the main clock is approximated using the MAINF value in the CKGR_MCFR register. Warn the user in that case. Signed-off-by:
Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by:
Boris BREZILLON <boris.brezillon@overkiz.com> Signed-off-by:
Mike Turquette <mturquette@linaro.org>
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- Jul 02, 2014
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Mike Turquette authored
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Himangi Saraogi authored
devm_ioremap_resource returns an ERR_PTR value, not NULL, on failure. A simplified version of the semantic match that finds this problem is as follows: // <smpl> @@ expression e,e1; statement S; @@ *e = devm_ioremap_resource(...); if (!e1) S // </smpl> Signed-off-by:
Himangi Saraogi <himangi774@gmail.com> Acked-by:
Julia Lawall <julia.lawall@lip6.fr> Acked-by Boris BREZILLON <boris.brezillon@free-electrons.com> Signed-off-by:
Mike Turquette <mturquette@linaro.org>
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Krzysztof Kozlowski authored
After unbinding the driver memory was corrupted by double free of clk_lookup structure. This lead to OOPS when re-binding the driver again. The driver allocated memory for 'clk_lookup' with devm_kzalloc. During driver removal this memory was freed twice: once by clkdev_drop() and second by devm code. Kernel panic log: [ 30.839284] Unable to handle kernel paging request at virtual address 5f343173 [ 30.846476] pgd = dee14000 [ 30.849165] [5f343173] *pgd=00000000 [ 30.852703] Internal error: Oops: 805 [#1] PREEMPT SMP ARM [ 30.858166] Modules linked in: [ 30.861208] CPU: 0 PID: 1 Comm: bash Not tainted 3.16.0-rc2-00239-g94bdf617b07e-dirty #40 [ 30.869364] task: df478000 ti: df480000 task.ti: df480000 [ 30.874752] PC is at clkdev_add+0x2c/0x38 [ 30.878738] LR is at clkdev_add+0x18/0x38 [ 30.882732] pc : [<c0350908>] lr : [<c03508f4>] psr: 60000013 [ 30.882732] sp : df481e78 ip : 00000001 fp : c0700ed8 [ 30.894187] r10: 0000000c r9 : 00000000 r8 : c07b0e3c [ 30.899396] r7 : 00000002 r6 : df45f9d0 r5 : df421390 r4 : c0700d6c [ 30.905906] r3 : 5f343173 r2 : c0700d84 r1 : 60000013 r0 : c0700d6c [ 30.912417] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user [ 30.919534] Control: 10c53c7d Table: 5ee1406a DAC: 00000015 [ 30.925262] Process bash (pid: 1, stack limit = 0xdf480240) [ 30.930817] Stack: (0xdf481e78 to 0xdf482000) [ 30.935159] 1e60: 00001000 df6de610 [ 30.943321] 1e80: df7f4558 c0355650 c05ec6ec c0700eb0 df6de600 df7f4510 dec9d69c 00000014 [ 30.951480] 1ea0: 00167b48 df6de610 c0700e30 c0713518 00000000 c0700e30 dec9d69c 00000006 [ 30.959639] 1ec0: 00167b48 c02c1b7c c02c1b64 df6de610 c07aff48 c02c0420 c06fb150 c047cc20 [ 30.967798] 1ee0: df6de610 df6de610 c0700e30 df6de644 c06fb150 0000000c dec9d690 c02bef90 [ 30.975957] 1f00: dec9c6c0 dece4c00 df481f80 dece4c00 0000000c c02be73c 0000000c c016ca8c [ 30.984116] 1f20: c016ca48 00000000 00000000 c016c1f4 00000000 00000000 b6f18000 df481f80 [ 30.992276] 1f40: df7f66c0 0000000c df480000 df480000 b6f18000 c011094c df47839c 60000013 [ 31.000435] 1f60: 00000000 00000000 df7f66c0 df7f66c0 0000000c df480000 b6f18000 c0110dd4 [ 31.008594] 1f80: 00000000 00000000 0000000c b6ec05d8 0000000c b6f18000 00000004 c000f2a8 [ 31.016753] 1fa0: 00001000 c000f0e0 b6ec05d8 0000000c 00000001 b6f18000 0000000c 00000000 [ 31.024912] 1fc0: b6ec05d8 0000000c b6f18000 00000004 0000000c 00000001 00000000 00167b48 [ 31.033071] 1fe0: 00000000 bed83a80 b6e004f0 b6e5122c 60000010 00000001 ffffffff ffffffff [ 31.041248] [<c0350908>] (clkdev_add) from [<c0355650>] (s2mps11_clk_probe+0x2b4/0x3b4) [ 31.049223] [<c0355650>] (s2mps11_clk_probe) from [<c02c1b7c>] (platform_drv_probe+0x18/0x48) [ 31.057728] [<c02c1b7c>] (platform_drv_probe) from [<c02c0420>] (driver_probe_device+0x13c/0x384) [ 31.066579] [<c02c0420>] (driver_probe_device) from [<c02bef90>] (bind_store+0x88/0xd8) [ 31.074564] [<c02bef90>] (bind_store) from [<c02be73c>] (drv_attr_store+0x20/0x2c) [ 31.082118] [<c02be73c>] (drv_attr_store) from [<c016ca8c>] (sysfs_kf_write+0x44/0x48) [ 31.090016] [<c016ca8c>] (sysfs_kf_write) from [<c016c1f4>] (kernfs_fop_write+0xc0/0x17c) [ 31.098176] [<c016c1f4>] (kernfs_fop_write) from [<c011094c>] (vfs_write+0xa0/0x1c4) [ 31.105899] [<c011094c>] (vfs_write) from [<c0110dd4>] (SyS_write+0x40/0x8c) [ 31.112931] [<c0110dd4>] (SyS_write) from [<c000f0e0>] (ret_fast_syscall+0x0/0x3c) [ 31.120481] Code: e2842018 e584501c e1a00004 e885000c (e5835000) [ 31.126596] ---[ end trace efad45bfa3a61b05 ]--- [ 31.131181] Kernel panic - not syncing: Fatal exception [ 31.136368] CPU1: stopping [ 31.139054] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G D 3.16.0-rc2-00239-g94bdf617b07e-dirty #40 [ 31.148697] [<c0016480>] (unwind_backtrace) from [<c0012950>] (show_stack+0x10/0x14) [ 31.156419] [<c0012950>] (show_stack) from [<c0480db8>] (dump_stack+0x80/0xcc) [ 31.163622] [<c0480db8>] (dump_stack) from [<c001499c>] (handle_IPI+0x130/0x15c) [ 31.170998] [<c001499c>] (handle_IPI) from [<c000862c>] (gic_handle_irq+0x60/0x68) [ 31.178549] [<c000862c>] (gic_handle_irq) from [<c0013480>] (__irq_svc+0x40/0x70) [ 31.186009] Exception stack(0xdf4bdf88 to 0xdf4bdfd0) [ 31.191046] df80: ffffffed 00000000 00000000 00000000 df4bc000 c06d042c [ 31.199207] dfa0: 00000000 ffffffed c06d03c0 00000000 c070c288 00000000 00000000 df4bdfd0 [ 31.207363] dfc0: c0010324 c0010328 60000013 ffffffff [ 31.212402] [<c0013480>] (__irq_svc) from [<c0010328>] (arch_cpu_idle+0x28/0x30) [ 31.219783] [<c0010328>] (arch_cpu_idle) from [<c005f150>] (cpu_startup_entry+0x2c4/0x3f0) [ 31.228027] [<c005f150>] (cpu_startup_entry) from [<400086c4>] (0x400086c4) [ 31.234968] ---[ end Kernel panic - not syncing: Fatal exception Fixes: 7cc560de ("clk: s2mps11: Add support for s2mps11") Cc: <stable@vger.kernel.org> Signed-off-by:
Krzysztof Kozlowski <k.kozlowski@samsung.com> Reviewed-by:
Yadwinder Singh Brar <yadi.brar@samsung.com> Signed-off-by:
Mike Turquette <mturquette@linaro.org>
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Peter Ujfalusi authored
Palmas class of devices can provide 32K clock(s) to be used by other devices on the board. Depending on the actual device the provided clocks can be: CLK32K_KG and CLK32K_KGAUDIO or only one: CLK32K_KG (TPS659039 for example) Use separate compatible flags for the two 32K clock. A system which needs or have only one of the 32k clock from Palmas will need to add node(s) for each clock as separate section in the dts file. The two compatible property is: "ti,palmas-clk32kg" for clk32kg clock "ti,palmas-clk32kgaudio" for clk32kgaudio clock Apart from the register control of the clocks - which is done via the clock API there is a posibility to enable the external sleep control. In this way the clock can be enabled/disabled on demand by the user of the clock. See the documentation for more details. Signed-off-by:
Peter Ujfalusi <peter.ujfalusi@ti.com> Reviewed-by:
Nishanth Menon <nm@ti.com> Signed-off-by:
Mike Turquette <mturquette@linaro.org>
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Peter Ujfalusi authored
Palmas class of devices can provide 32K clock(s) to be used by other devices on the board. Depending on the actual device the provided clocks can be: CLK32K_KG and CLK32K_KGAUDIO or only one: CLK32K_KG (TPS659039 for example) Use separate compatible flags for the two 32K clock. A system which needs or have only one of the 32k clock from Palmas will need to add node(s) for each clock as separate section in the dts file. The two compatible property is: "ti,palmas-clk32kg" for clk32kg clock "ti,palmas-clk32kgaudio" for clk32kgaudio clock Apart from the register control of the clocks - which is done via the clock API there is a posibility to enable the external sleep control. In this way the clock can be enabled/disabled on demand by the user of the clock. Signed-off-by:
Peter Ujfalusi <peter.ujfalusi@ti.com> Reviewed-by:
Nishanth Menon <nm@ti.com> Signed-off-by:
Mike Turquette <mturquette@linaro.org>
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Roger Quadros authored
Define ti_clk_register_dpll_x2() and of_ti_am3_dpll_x2_setup() if AM43XX is defined. Fixes the below boot issue. [ 2.157258] gpmc_l3_clk not enabled [ 2.161194] gpmc_l3_clk not enabled [ 2.164896] Division by zero in kernel. [ 2.169055] CPU: 0 PID: 321 Comm: kworker/u2:2 Tainted: G W 3.16.0-rc1-00008-g4c0e520 #273 [ 2.178880] Workqueue: deferwq deferred_probe_work_func [ 2.184459] [<c001477c>] (unwind_backtrace) from [<c001187c>] (show_stack+0x10/0x14) [ 2.192752] [<c001187c>] (show_stack) from [<c0530f28>] (dump_stack+0x80/0x9c) [ 2.200486] [<c0530f28>] (dump_stack) from [<c02c867c>] (Ldiv0+0x8/0x10) [ 2.207678] [<c02c867c>] (Ldiv0) from [<c0022da0>] (gpmc_calc_divider+0x24/0x40) [ 2.215490] [<c0022da0>] (gpmc_calc_divider) from [<c0022e20>] (gpmc_cs_set_timings+0x18/0x474) [ 2.224783] [<c0022e20>] (gpmc_cs_set_timings) from [<c003069c>] (gpmc_nand_init+0x74/0x1a8) [ 2.233791] [<c003069c>] (gpmc_nand_init) from [<c0024668>] (gpmc_probe+0x52c/0x874) [ 2.242089] [<c0024668>] (gpmc_probe) from [<c0349218>] (platform_drv_probe+0x18/0x48) [ 2.250534] [<c0349218>] (platform_drv_probe) from [<c0347d88>] (driver_probe_device+0x104/0x22c) [ 2.259988] [<c0347d88>] (driver_probe_device) from [<c03464dc>] (bus_for_each_drv+0x44/0x8c) [ 2.269087] [<c03464dc>] (bus_for_each_drv) from [<c0347c4c>] (device_attach+0x74/0x8c) [ 2.277620] [<c0347c4c>] (device_attach) from [<c0347380>] (bus_probe_device+0x88/0xb0) [ 2.286074] [<c0347380>] (bus_probe_device) from [<c0347768>] (deferred_probe_work_func+0x60/0x90) [ 2.295611] [<c0347768>] (deferred_probe_work_func) from [<c004ef50>] (process_one_work+0x1b4/0x4bc) [ 2.305288] [<c004ef50>] (process_one_work) from [<c004f3d4>] (worker_thread+0x148/0x550) [ 2.313954] [<c004f3d4>] (worker_thread) from [<c0055a48>] (kthread+0xc8/0xe4) [ 2.321628] [<c0055a48>] (kthread) from [<c000e648>] (ret_from_fork+0x14/0x2c) Signed-off-by:
Roger Quadros <rogerq@ti.com> Signed-off-by:
Mike Turquette <mturquette@linaro.org>
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Sachin Kamat authored
‘all_lists’ and ‘orphan_list’ is accessed only when DEBUG_FS is defined. Thus, make their compilation conditional to fix the below warnings introduced by commit 27b8d5f7 ("clk: flatten clk tree in debugfs"): drivers/clk/clk.c:40:27: warning: ‘all_lists’ defined but not used [-Wunused-variable] drivers/clk/clk.c:46:27: warning: ‘orphan_list’ defined but not used [-Wunused-variable] Signed-off-by:
Sachin Kamat <sachin.kamat@samsung.com> Cc: Peter De Schrijver <pdeschrijver@nvidia.com> Signed-off-by:
Mike Turquette <mturquette@linaro.org>
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Jingchang Lu authored
WARNING: drivers/built-in.o(.data+0x10258): Section mismatch in reference from the variable ppc_corenet_clk_driver to the (unknown reference) .init.rodata:(unknown) The variable ppc_corenet_clk_driver references the (unknown reference) __initconst (unknown) If the reference is valid then annotate the variable with __init* or __refdata (see linux/init.h) or name the variable: *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console Signed-off-by:
Jingchang Lu <jingchang.lu@freescale.com> Signed-off-by:
Mike Turquette <mturquette@linaro.org>
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Mike Turquette authored
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- Jun 30, 2014
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Peter De Schrijver authored
When writing a module for testing or debugging purposes, there is no way to get hold of clk handles. This patch solves this by exposing all valid clocks as clkdev's for the virtual device tegra-clk-debug. Signed-off-by:
Peter De Schrijver <pdeschrijver@nvidia.com>
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Doug Anderson authored
The "aclk66_peric" clock is a gate clock with a whole bunch of gates underneath it. This big gate isn't very useful to include in our clock tree. If any of the children need to be turned on then the big gate will need to be on anyway. ...and there are plenty of other "big gates" that aren't described in our clock tree, some of which shut off collections of clocks that have no relationship in the hierarchy so are hard to model. "aclk66_peric" is causing earlyprintk problems since it gets disabled as part of the boot process, so let's just remove it. Strangely (and for no good reason) this clock is exported as part of the common clock bindings. Remove it since there are no in-kernel device trees using it and no reason anyone out of tree should refer to it either. Signed-off-by:
Doug Anderson <dianders@chromium.org> Signed-off-by:
Tomasz Figa <t.figa@samsung.com>
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Rahul Sharma authored
Change bit from 2 to 9 for tv (mixer) sysmmu clock. Signed-off-by:
Rahul Sharma <rahul.sharma@samsung.com> Reviewed-by:
Sachin Kamat <sachin.kamat@samsung.com> Acked-by:
Kukjin Kim <kgene.kim@samsung.com> Signed-off-by:
Tomasz Figa <t.figa@samsung.com>
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Charles Keepax authored
In the move to this clock driver the hookups for the SPI clocks were dropped, which causes my system Cragganmore (s3c6410 based) to be unable to locate any spibus clocks. This patch adds them back in. When taking the clock from the epll clock (SCLK) the rates on the SPI bus are incorrect, this needs further debugging but the hookup here should be correct and the problem should be else where. The USBCLK case has been dropped because this requires the USB PHY to be enabled. Signed-off-by:
Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by:
Tomasz Figa <t.figa@samsung.com>
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Tomasz Figa authored
ISP special clocks have dedicated gating registers and so MUX SRC_MASK register should not be used. This patch fixes the problem of Exynos4x12-based boards freezing on system suspend, because those mux outputs need not to be masked while suspending. Signed-off-by:
Tomasz Figa <t.figa@samsung.com> Cc: Mike Turquette <mturquette@linaro.org>
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Vasily Khoruzhick authored
Without these aliases clock lookup fails in s3c2410fb, s3cmci, s3c2410-nand, s3c24xx-i2s, and i2c-s3c2410 drivers. Signed-off-by:
Vasily Khoruzhick <anarsoul@gmail.com> Reviewed-by:
Heiko Stuebner <heiko@sntech.de> Signed-off-by:
Tomasz Figa <t.figa@samsung.com>
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