- 02 Feb, 2015 4 commits
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Michael Turquette authored
The X-Gene PCIe driver consumes clocks and does not provide them. Replace usage of clk-private.h with clk.h. Cc: Tanmay Inamdar <tinamdar@apm.com> Signed-off-by:Michael Turquette <mturquette@linaro.org>
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Michael Turquette authored
Remove omap_clocks_register and dummy_ck. The former is not used anymore now that the statically defined clk stuctures are replaced with proper descriptors and registered with the framework. The dummy clock in arch/arm/mach-omap2 is made redundant by the OMAP3+ clock data that migrated to drivers/clk. An additional benefit to this clean-up is removing the references to clk-private.h which will be removed. Cc: Paul Walmsley <paul@pwsan.com> Cc: Tero Kristo <t-kristo@ti.com> Acked-by:
Tony Lindgren <tony@atomide.com> Signed-off-by:
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Michael Turquette authored
Conflicts: arch/arm/mach-omap2/cclock3xxx_data.c
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Tomeu Vizoso authored
Moves clock state to struct clk_core, but takes care to change as little API as possible. struct clk_hw still has a pointer to a struct clk, which is the implementation's per-user clk instance, for backwards compatibility. The struct clk that clk_get_parent() returns isn't owned by the caller, but by the clock implementation, so the former shouldn't call clk_put() on it. Because some boards in mach-omap2 still register clocks statically, their clock registration had to be updated to take into account that the clock information is stored in struct clk_core now. Signed-off-by:
Tomeu Vizoso <tomeu.vizoso@collabora.com> Reviewed-by:
Stephen Boyd <sboyd@codeaurora.org> Tested-by:
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- 30 Jan, 2015 11 commits
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Tero Kristo authored
This is no longer used for anything, thus it can be removed. Signed-off-by:
Tero Kristo <t-kristo@ti.com> Acked-by:
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Tero Kristo authored
As the clock data is now available for the legacy boot also from the clock driver, use this rather than the data under the mach folder. This allows us to get rid of the old clock data completely. Signed-off-by:
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Tero Kristo authored
As the legacy clock data is being moved under clock driver, the clock data will be using the same low level infrastructure for register accesses. This requires the clk_memmaps to be initialized properly. This patch adds a support hook to the PRM driver to initialize the mappings. Signed-off-by:
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Tero Kristo authored
Introduces omap3 legacy clock data under clock driver. The clock data is also in new format, which makes it possible to get rid of the clk-private.h header. This patch also introduces SoC specific init functions that shall be called from the low level init. The data format used in this file has two possible evolution paths; it can either be removed completely once no longer needed, or it will be possible to retain the format and modify the TI clock driver to be a loadable module at some point. The actual path to be followed will be decided later. Signed-off-by:
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Tero Kristo authored
Legacy clock data is initialized slightly differently compared to DT clocks, thus add support for this. Signed-off-by:
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Tero Kristo authored
Legacy clock data is initialized slightly differently compared to DT clocks, thus add support for this. Signed-off-by:
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Tero Kristo authored
Legacy clock data is initialized slightly differently compared to DT clocks, thus add support for this. Signed-off-by:
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Tero Kristo authored
Legacy clock data is initialized slightly differently compared to DT clocks, thus add support for this. The interface clock descriptor itself is overloading the gate clock descriptor, thus it needs to be called from the gate setup. Signed-off-by:
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Tero Kristo authored
Legacy clock data is initialialized slightly differently compared to DT clocks, thus add support for this. Signed-off-by:
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Tero Kristo authored
Legacy clock data is initialized slightly differently compared to DT clocks, thus add support for this. Signed-off-by:
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Tero Kristo authored
Legacy clock data for OMAP3 is being moved under clock driver, thus base support for this is needed. This patch adds basic definitions for clock init descriptors and core infrastructure for initialization, which will be called from the OMAP3 clock init. Signed-off-by:
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- 28 Jan, 2015 13 commits
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Tomeu Vizoso authored
As it has never been used. Signed-off-by:
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Tomeu Vizoso authored
As clk_unprepare_unused_subtree and clk_disable_unused_subtree are always called with a valid struct clk. Signed-off-by:
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Emil Medve authored
Currently a mix of clk-qoriq/qoriq-clk and no prefix is used Signed-off-by:
Emil Medve <Emilian.Medve@Freescale.com> Signed-off-by:
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Emil Medve authored
Where the memset() is not necessary Signed-off-by:
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Emil Medve authored
drivers/clk/clk-qoriq.c:59:22: warning: symbol 'cmux_ops' was not declared. Should it be static? Signed-off-by:
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Emil Medve authored
WARNING:OOM_MESSAGE: Possible unnecessary 'out of memory' message + if (!parent_names) { + pr_err("%s: could not allocate parent_names\n", __func__); WARNING:OOM_MESSAGE: Possible unnecessary 'out of memory' message + if (!cmux_clk) { + pr_err("%s: could not allocate cmux_clk\n", __func__); WARNING:OOM_MESSAGE: Possible unnecessary 'out of memory' message + if (!subclks) { + pr_err("%s: could not allocate subclks\n", __func__); WARNING:OOM_MESSAGE: Possible unnecessary 'out of memory' message + if (!onecell_data) { + pr_err("%s: could not allocate onecell_data\n", __func__); Signed-off-by: -
Emil Medve authored
CHECK:ALLOC_SIZEOF_STRUCT: Prefer kzalloc(sizeof(*cmux_clk)...) over kzalloc(sizeof(struct cmux_clk)...) + cmux_clk = kzalloc(sizeof(struct cmux_clk), GFP_KERNEL); CHECK:ALLOC_SIZEOF_STRUCT: Prefer kzalloc(sizeof(*onecell_data)...) over kzalloc(sizeof(struct clk_onecell_data)...) + onecell_data = kzalloc(sizeof(struct clk_onecell_data), GFP_KERNEL); Signed-off-by:
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Emil Medve authored
WARNING:ALLOC_WITH_MULTIPLY: Prefer kcalloc over kzalloc with multiply + subclks = kzalloc(sizeof(struct clk *) * count, GFP_KERNEL); Signed-off-by:
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Emil Medve authored
CHECK:PARENTHESIS_ALIGNMENT: Alignment should match open parenthesis + rc = of_property_read_string_index(np, "clock-output-names", + 0, &clk_name); CHECK:PARENTHESIS_ALIGNMENT: Alignment should match open parenthesis + pr_err("Could not register clock provider for node:%s\n", + np->name); CHECK:PARENTHESIS_ALIGNMENT: Alignment should match open parenthesis + rc = of_property_read_string_index(np, "clock-output-names", + i, &clk_name); CHECK:PARENTHESIS_ALIGNMENT: Alignment should match open parenthesis + pr_err("Could not register clk provider for node:%s\n", + np->name); Signed-off-by: -
Robert Jarzmik authored
Move pxa25x clock drivers from arch/arm/mach-pxa to driver/clk. In the move : - convert to new clock framework legacy clocks - provide clocks as before for platform data based boards - provide clocks through devicetree with clk-pxa-dt Signed-off-by:
Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by:
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Soren Brinkmann authored
The CPU_2X clock does not have a classical in-kernel user, but is, amongst other things, required for OCM and debug access. Make sure this clock is not mistakenly disabled during boot up by enabling it in the platform's clock driver. Cc: stable@vger.kernel.org # 3.11+ Fixes: 0ee52b15 'clk: zynq: Add clock controller driver' Signed-off-by:
Soren Brinkmann <soren.brinkmann@xilinx.com> Signed-off-by:
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Michael Turquette authored
Merge tag 'sunxi-clocks-for-3.20' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into clk-next Allwinner clock changes for 3.20 The set of clock changes for the 3.20 merge window, with mostly: - Some PLL fixes for the A80 and A31 - The MMC custom phase functions are removed, and moved over to the generic phase API. - Add the A80 MMC clocks Some DT changes slipped here as well, to preserve bisectability.
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Michael Turquette authored
Merge tag 'v3.20-rockchip-clk1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into clk-next The two big changes are the additional of the watchdog clock, which we currently only "fake" as the clock gate control is living in a very strange place, but the watchdog driver needs to read the clock rate from it and the setting of rk3288 plls to slow mode upon suspend. Other than that some more exported clocks and a CLK_SET_RATE_PARENT flag for the uart clocks.
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- 27 Jan, 2015 12 commits
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Stephen Boyd authored
These modules don't need to include clk-private.h. Replace the include with clk.h because these modules are clock consumers and also include clk-provider.h in clk/ti.h because struct clk_hw_omap has a struct clk_hw embedded in it. Cc: Tero Kristo <t-kristo@ti.com> Cc: Tony Lindgren <tony@atomide.com> Signed-off-by:
Paul Walmsley <paul@pwsan.com> Signed-off-by:
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Stephen Boyd authored
These drivers don't need to include clk-private.h. Remove the include. Signed-off-by:
Ulf Hansson <ulf.hansson@linaro.org> Acked-by:
Linus Walleij <linus.walleij@linaro.org> Signed-off-by:
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Maxime Ripard authored
The phase setter and getter were not exported until now, which was causing build breakages when callers were compiled as module. Export these two functions. Reported-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
Maxime Ripard <maxime.ripard@free-electrons.com> Reviewed-by:
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Rajendra Nayak authored
Document the LPASS (low power audio subsystem) clock controller found on Qualcomm devices. Cc: <devicetree@vger.kernel.org> Signed-off-by:
Rajendra Nayak <rnayak@codeaurora.org> Signed-off-by:
Kumar Gala <galak@codeaurora.org> Signed-off-by:
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Stephen Boyd authored
Add an LCC driver for MSM8960/APQ8064 that supports the i2s, slimbus, and pcm clocks. Signed-off-by:
Kenneth Westfield <kwestfie@codeaurora.org> Signed-off-by:
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Rajendra Nayak authored
Add an LCC driver for IPQ806x that supports the i2s, S/PDIF, and pcm clocks. Signed-off-by:
Josh Cartwright <joshc@codeaurora.org> [sboyd@codeaurora.org: Reworded commit text, added Kconfig select, fleshed out Kconfig description a bit more, added pll4 configuration and reworked probe for it, added muxes, split out dt-binding file] Signed-off-by:
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Rajendra Nayak authored
Add defines to make more human readable numbers for the lpass clock controller found on IPQ806x SoCs. Also remove the PLL4 define in gcc to avoid #define conflicts because that clock doesn't exist in gcc, instead it lives in lcc. Signed-off-by:
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Stephen Boyd authored
Add support for muxes that use regmap instead of readl/writel directly. We don't support as many features as clk-mux.c, but this is good enough to support getting and setting parents. Adding a table based lookup can be added in the future if needed. Signed-off-by:
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Josh Cartwright authored
Add support for dividers that use regmap instead of readl/writel. Signed-off-by:
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Stephen Boyd authored
Some devices don't use mmio to interact with dividers. Split out the logic from the register read/write parts so that we can reuse the division logic elsewhere. Signed-off-by:
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Stephen Boyd authored
Some clock drivers want to find the closest rate on the input of a mux instead of a rate that's less than or equal to the desired rate. Add a generic mux function to support this. Signed-off-by:
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Srinivas Kandagatla authored
Some of the clks can be registered & unregistered before the clk related debugfs entries are initialized at late_initcall. In the unregister path checking for only dentry before clk_debug_init() would lead dangling pointers in the debug clk list, because the list is already populated in register path and the clk pointer freed in unregister path. The side effect of not removing it from the list is either a null pointer dereference or if lucky to boot the system, the number of clk entries in debugfs disappear. We could add more checks like if (inited && !clk->dentry) but just removing the check for dentry made more sense as debugfs_remove_recursive() seems to be safe with null pointers. This will ensure that the unregistering clk would be removed from the debug list in all the code paths. Without this patch kernel would crash with log: Unable to handle kernel NULL pointer dereference at virtual address 00000000 pgd = c0204000 [00000000] *pgd=00000000 Internal error: Oops: 5 [#1] SMP ARM Modules linked in: CPU: 1 PID: 1 Comm: swapper/0 Tainted: G B 3.19.0-rc3-00007-g412f9ba-dirty #840 Hardware name: Qualcomm (Flattened Device Tree) task: ed948000 ti: ed944000 task.ti: ed944000 PC is at strlen+0xc/0x40 LR is at __create_file+0x64/0x1dc pc : [<c04ee604>] lr : [<c049f1c4>] psr: 60000013 sp : ed945e40 ip : ed945e50 fp : ed945e4c r10: 00000000 r9 : c1006094 r8 : 00000000 r7 : 000041ed r6 : 00000000 r5 : ed4af998 r4 : c11b5e28 r3 : 00000000 r2 : ed945e38 r1 : a0000013 r0 : 00000000 Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel Control: 10c5787d Table: 8020406a DAC: 00000015 Process swapper/0 (pid: 1, stack limit = 0xed944248) Stack: (0xed945e40 to 0xed946000) 5e40: ed945e7c ed945e50 c049f1c4 c04ee604 c0fc2fa4 00000000 ecb748c0 c11c2b80 5e60: c0beec04 0000011c c0fc2fa4 00000000 ed945e94 ed945e80 c049f3e0 c049f16c 5e80: 00000000 00000000 ed945eac ed945e98 c08cbc50 c049f3c0 ecb748c0 c11c2b80 5ea0: ed945ed4 ed945eb0 c0fc3080 c08cbc30 c0beec04 c107e1d8 ecdf0600 c107e1d8 5ec0: c107e1d8 ecdf0600 ed945f54 ed945ed8 c0208ed4 c0fc2fb0 c026a784 c04ee628 5ee0: ed945f0c ed945ef0 c0f5d600 c04ee604 c0f5d5ec ef7fcc7d c0b40ecc 0000011c 5f00: ed945f54 ed945f10 c026a994 c0f5d5f8 c04ecc00 00000007 ef7fcc95 00000007 5f20: c0e90744 c0dd0884 ed945f54 c106cde0 00000007 c117f8c0 0000011c c0f5d5ec 5f40: c1006094 c100609c ed945f94 ed945f58 c0f5de34 c0208e50 00000007 00000007 5f60: c0f5d5ec be9b5ae0 00000000 c117f8c0 c0af1680 00000000 00000000 00000000 5f80: 00000000 00000000 ed945fac ed945f98 c0af169c c0f5dd2c ed944000 00000000 5fa0: 00000000 ed945fb0 c020f298 c0af168c 00000000 00000000 00000000 00000000 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 ebcc6d33 bfffca73 [<c04ee604>] (strlen) from [<c049f1c4>] (__create_file+0x64/0x1dc) [<c049f1c4>] (__create_file) from [<c049f3e0>] (debugfs_create_dir+0x2c/0x34) [<c049f3e0>] (debugfs_create_dir) from [<c08cbc50>] (clk_debug_create_one+0x2c/0x16c) [<c08cbc50>] (clk_debug_create_one) from [<c0fc3080>] (clk_debug_init+0xdc/0x144) [<c0fc3080>] (clk_debug_init) from [<c0208ed4>] (do_one_initcall+0x90/0x1e0) [<c0208ed4>] (do_one_initcall) from [<c0f5de34>] (kernel_init_freeable+0x114/0x1e0) [<c0f5de34>] (kernel_init_freeable) from [<c0af169c>] (kernel_init+0x1c/0xfc) [<c0af169c>] (kernel_init) from [<c020f298>] (ret_from_fork+0x14/0x3c) Code: c0b40ecc e1a0c00d e92dd800 e24cb004 (e5d02000) ---[ end trace b940e45b5e25c1e7 ]--- Fixes: 6314b679 "clk: Don't hold prepare_lock across debugfs creation" Signed-off-by:
Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Reviewed-by:
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