- 20 Feb, 2015 1 commit
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Tomeu Vizoso authored
We don't really need to recalculate the effective rate of a clock when a per-user clock is removed, if the constraints of the later aren't limiting the requested rate. This was causing problems with clocks that never had a rate set before, as rate_req would be zero. Though this could be considered a bug in the implementation of those clocks, this should be checked somewhere else. Fixes: 1c8e6004 ("clk: Add rate constraints to clocks") Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Peter De Schrijver <pdeschrijver@nvidia.com> Signed-off-by:
Tomeu Vizoso <tomeu.vizoso@collabora.com> Signed-off-by:
Michael Turquette <mturquette@linaro.org>
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- 18 Feb, 2015 7 commits
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Stefan Wahren authored
Revert commit 039e5970 (clk: mxs: Fix invalid 32-bit access to frac registers), because it leads to a faulty spi communication on mx28evk. Signed-off-by:
Stefan Wahren <stefan.wahren@i2se.com> Reported-by:
Fabio Estevam <fabio.estevam@freescale.com> Tested-by:
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Emil Medve authored
Change-Id: Iac11ed95f274485a86d2c11f32a3dc502bcd020f Signed-off-by:
Emil Medve <Emilian.Medve@Freescale.com> Acked-by:
Tang Yuantian <Yuantian.Tang@freescale.com> Signed-off-by:
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Emil Medve authored
Change-Id: I1a80ad7b9f6854791bd270b746f93a91439155a6 Signed-off-by:
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Javier Martinez Canillas authored
The change in the clk API to return a per-user clock instance, moved the clock state to struct clk_core so now the struct clk_hw .core field is used instead of .clk for most operations. So for hardware clocks that needs to share the same clock state, both the .core and .clk pointers have to be assigned but currently only the .clk is set. This leads to NULL pointer dereference when the operations try to access the hw clock .core. For example, the composite clock rate and mux components didn't have a .core set which leads to this error: Unable to handle kernel NULL pointer dereference at virtual address 00000034 pgd = c0004000 [00000034] *pgd=00000000 Internal error: Oops: 5 [#1] PREEMPT SMP ARM Modules linked in: CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.19.0-next-20150211-00002-g1fb7f0e1150d #423 Hardware name: SAMSUNG EXYNOS (Flattened Device Tree) task: ee480000 ti: ee488000 task.ti: ee488000 PC is at clk_mux_determine_rate_flags+0x14/0x19c LR is at __clk_mux_determine_rate+0x24/0x2c pc : [<c03a355c>] lr : [<c03a3734>] psr: a0000113 sp : ee489ce8 ip : ee489d84 fp : ee489d84 r10: 0000005c r9 : 00000001 r8 : 016e3600 r7 : 00000000 r6 : 00000000 r5 : ee442200 r4 : ee440c98 r3 : ffffffff r2 : 00000000 r1 : 016e3600 r0 : ee440c98 Flags: NzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel Control: 10c5387d Table: 4000406a DAC: 00000015 Process swapper/0 (pid: 1, stack limit = 0xee488210) Stack: (0xee489ce8 to 0xee48a000) 9ce0: 00000000 ffffffff 60000113 ee440c98 ee442200 00000000 9d00: 016e3600 ffffffff 00000001 0000005c ee489d84 c03a3734 ee489d80 ee489d84 9d20: 00000000 c048b130 00000400 c03a5798 ee489d80 ee489d84 c0607f60 ffffffea 9d40: 00000001 00000001 ee489d5c c003f844 c06e3340 ee402680 ee440d0c ed935000 9d60: 016e3600 00000003 00000001 0000005c eded3700 c03a11a0 ee489d80 ee489d84 9d80: 016e3600 ee402680 c05b413a eddc9900 016e3600 c03a1228 00000000 ffffffff 9da0: ffffffff eddc9900 016e3600 c03a1c1c ffffffff 016e3600 ed8c6710 c03d6ce4 9dc0: eded3400 00000000 00000000 c03c797c 00000001 0000005c eded3700 eded3700 9de0: 000005e0 00000001 0000005c c03db8ac c06e7e54 c03c8f08 00000000 c06e7e64 9e00: c06b6e74 c06e7f64 000005e0 c06e7df8 c06e5100 00000000 c06e7e6c c06e7f54 9e20: 00000000 00000000 eebd9550 00000000 c06e7da0 c06e7e54 ee7b5010 c06e7da0 9e40: eddc9690 c06e7db4 c06b6e74 00000097 00000000 c03d4398 00000000 ee7b5010 9e60: eebd9550 c06e7da0 00000000 c03db824 ee7b5010 fffffffe c06e7db4 c0299c7c 9e80: ee7b5010 c072a05c 00000000 c0298858 ee7b5010 c06e7db4 ee7b5044 00000000 9ea0: eddc9580 c0298a04 c06e7db4 00000000 c0298978 c02971d4 ee405c78 ee732b40 9ec0: c06e7db4 eded3800 c06d6738 c0298044 c0608300 c06e7db4 00000000 c06e7db4 9ee0: 00000000 c06beb58 c06beb58 c0299024 00000000 c068dd00 00000000 c0008944 9f00: 00000038 c049013c ee462200 c0711920 ee480000 60000113 c06c2cb0 00000000 9f20: 00000000 c06c2cb0 60000113 00000000 ef7fcafc 00000000 c0640194 c00389ec 9f40: c05ec3a8 c063f824 00000006 00000006 c06c2c50 c0696444 00000006 c0696424 9f60: c06ee1c0 c066b588 c06b6e74 00000097 00000000 c066bd44 00000006 00000006 9f80: c066b588 c003d684 00000000 c0481938 00000000 00000000 00000000 00000000 9fa0: 00000000 c0481940 00000000 c000e680 00000000 00000000 00000000 00000000 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000 [<c03a355c>] (clk_mux_determine_rate_flags) from [<c03a3734>] (__clk_mux_determine_rate+0x24/0x2c) [<c03a3734>] (__clk_mux_determine_rate) from [<c03a5798>] (clk_composite_determine_rate+0xbc/0x238) [<c03a5798>] (clk_composite_determine_rate) from [<c03a11a0>] (clk_core_round_rate_nolock+0x5c/0x9c) [<c03a11a0>] (clk_core_round_rate_nolock) from [<c03a1228>] (__clk_round_rate+0x38/0x40) [<c03a1228>] (__clk_round_rate) from [<c03a1c1c>] (clk_round_rate+0x20/0x38) [<c03a1c1c>] (clk_round_rate) from [<c03d6ce4>] (max98090_dai_set_sysclk+0x34/0x118) [<c03d6ce4>] (max98090_dai_set_sysclk) from [<c03c797c>] (snd_soc_dai_set_sysclk+0x38/0x80) [<c03c797c>] (snd_soc_dai_set_sysclk) from [<c03db8ac>] (snow_late_probe+0x24/0x48) [<c03db8ac>] (snow_late_probe) from [<c03c8f08>] (snd_soc_register_card+0xf04/0x1070) [<c03c8f08>] (snd_soc_register_card) from [<c03d4398>] (devm_snd_soc_register_card+0x30/0x64) [<c03d4398>] (devm_snd_soc_register_card) from [<c03db824>] (snow_probe+0x68/0xcc) [<c03db824>] (snow_probe) from [<c0299c7c>] (platform_drv_probe+0x48/0x98) [<c0299c7c>] (platform_drv_probe) from [<c0298858>] (driver_probe_device+0x114/0x234) [<c0298858>] (driver_probe_device) from [<c0298a04>] (__driver_attach+0x8c/0x90) [<c0298a04>] (__driver_attach) from [<c02971d4>] (bus_for_each_dev+0x54/0x88) [<c02971d4>] (bus_for_each_dev) from [<c0298044>] (bus_add_driver+0xd8/0x1cc) [<c0298044>] (bus_add_driver) from [<c0299024>] (driver_register+0x78/0xf4) [<c0299024>] (driver_register) from [<c0008944>] (do_one_initcall+0x80/0x1d0) [<c0008944>] (do_one_initcall) from [<c066bd44>] (kernel_init_freeable+0x10c/0x1d8) [<c066bd44>] (kernel_init_freeable) from [<c0481940>] (kernel_init+0x8/0xe4) [<c0481940>] (kernel_init) from [<c000e680>] (ret_from_fork+0x14/0x34) Code: e24dd00c e5907000 e1a08001 e88d000c (e5970034) The changes were made using the following cocinelle semantic patch: @i@ @@ @depends on i@ identifier dst; @@ - dst->clk = hw->clk; + __clk_hw_set_clk(dst, hw); @depends on i@ identifier dst; @@ - dst->hw.clk = hw->clk; + __clk_hw_set_clk(&dst->hw, hw); Fixes: 035a61c3 ("clk: Make clk API return per-user struct clk instances") Signed-off-by:
Javier Martinez Canillas <javier.martinez@collabora.co.uk> Reviewed-by:
Stephen Boyd <sboyd@codeaurora.org> Signed-off-by:
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Javier Martinez Canillas authored
After the clk API change to return a per-user clock instance, both the struct clk_core and struct clk pointers from the hw clock needs to be assigned to clock that share the same state. In the future the struct clk_core will be removed and this is going to change again so to avoid having to change the assignments twice in all the drivers, add a helper function to have an indirection level. Signed-off-by:
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Javier Martinez Canillas authored
The clock passed as an argument to clk_mux_determine_rate_flags() has the CLK_SET_RATE_PARENT flag set but it has no parent, then a NULL pointer will tried to be dereferenced. This shouldn't happen since setting that flag for a clock with no parent is a bug but the core should be robust to handle that case. Fixes: 035a61c3 ("clk: Make clk API return per-user struct clk instances") Signed-off-by:
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Tomeu Vizoso authored
They were added to this function by mistake when they were added to the clk_ops.determine_rate callback. Fixes: 1c8e6004 ("clk: Add rate constraints to clocks") Signed-off-by:
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- 07 Feb, 2015 1 commit
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Stephen Boyd authored
of_clk_get_by_clkspec() returns a struct clk pointer but it doesn't create a new handle for the consumers when we're using the common clock framework. Instead it just returns whatever the clk provider hands out. When the consumers go to call clk_put() we get an Oops. Unable to handle kernel paging request at virtual address 00200200 pgd = c0004000 [00200200] *pgd=00000000 Internal error: Oops: 805 [#1] PREEMPT SMP ARM Modules linked in: CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.19.0-rc1-00104-ga251361a-dirty #992 Hardware name: SAMSUNG EXYNOS (Flattened Device Tree) task: ee00b000 ti: ee088000 task.ti: ee088000 PC is at __clk_put+0x24/0xd0 LR is at clk_prepare_lock+0xc/0xec pc : [<c03eef38>] lr : [<c03ec1f4>] psr: 20000153 sp : ee089de8 ip : 00000000 fp : 00000000 r10: ee02f480 r9 : 00000001 r8 : 00000000 r7 : ee031cc0 r6 : ee089e08 r5 : 00000000 r4 : ee02f480 r3 : 00100100 r2 : 00200200 r1 : 0000091e r0 : 00000001 Flags: nzCv IRQs on FIQs off Mode SVC_32 ISA ARM Segment kernel Control: 10c5387d Table: 4000404a DAC: 00000015 Process swapper/0 (pid: 1, stack limit = 0xee088238) Stack: (0xee089de8 to 0xee08a000) 9de0: ee7c8f14 c03f0ec8 ee089e08 00000000 c0718dc8 00000001 9e00: 00000000 c04ee0f0 ee7e0844 00000001 00000181 c04edb58 ee2bd320 00000000 9e20: 00000000 c011dc5c ee16a1e0 00000000 00000000 c0718dc8 ee16a1e0 ee2bd1e0 9e40: c0641740 ee16a1e0 00000000 ee2bd320 c0718dc8 ee1d3e10 ee1d3e10 00000000 9e60: c0769a88 00000000 c0718dc8 00000000 00000000 c02c3124 c02c310c ee1d3e10 9e80: c07b4eec 00000000 c0769a88 c02c1d0c ee1d3e10 c0769a88 ee1d3e44 00000000 9ea0: c07091dc c02c1eb8 00000000 c0769a88 c02c1e2c c02c0544 ee005478 ee1676c0 9ec0: c0769a88 ee3a4e80 c0760ce8 c02c150c c0669b90 c0769a88 c0746cd8 c0769a88 9ee0: c0746cd8 ee2bc4c0 c0778c00 c02c24e0 00000000 c0746cd8 c0746cd8 c07091f0 9f00: 00000000 c0008944 c04f405c 00000025 ee00b000 60000153 c074ab00 00000000 9f20: 00000000 c074ab90 60000153 00000000 ef7fca5d c050860c 000000b6 c0036b88 9f40: c065ecc4 c06bc728 00000006 00000006 c074ab30 ef7fca40 c0739bdc 00000006 9f60: c0718dbc c0778c00 000000b6 c0718dc8 c06ed598 c06edd64 00000006 00000006 9f80: c06ed598 c003b438 00000000 c04e64f4 00000000 00000000 00000000 00000000 9fa0: 00000000 c04e64fc 00000000 c000e838 00000000 00000000 00000000 00000000 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 c0c0c0c0 c0c0c0c0 [<c03eef38>] (__clk_put) from [<c03f0ec8>] (of_clk_set_defaults+0xe0/0x2c0) [<c03f0ec8>] (of_clk_set_defaults) from [<c02c3124>] (platform_drv_probe+0x18/0xa4) [<c02c3124>] (platform_drv_probe) from [<c02c1d0c>] (driver_probe_device+0x10c/0x22c) [<c02c1d0c>] (driver_probe_device) from [<c02c1eb8>] (__driver_attach+0x8c/0x90) [<c02c1eb8>] (__driver_attach) from [<c02c0544>] (bus_for_each_dev+0x54/0x88) [<c02c0544>] (bus_for_each_dev) from [<c02c150c>] (bus_add_driver+0xd4/0x1d0) [<c02c150c>] (bus_add_driver) from [<c02c24e0>] (driver_register+0x78/0xf4) [<c02c24e0>] (driver_register) from [<c07091f0>] (fimc_md_init+0x14/0x30) [<c07091f0>] (fimc_md_init) from [<c0008944>] (do_one_initcall+0x80/0x1d0) [<c0008944>] (do_one_initcall) from [<c06edd64>] (kernel_init_freeable+0x108/0x1d4) [<c06edd64>] (kernel_init_freeable) from [<c04e64fc>] (kernel_init+0x8/0xec) [<c04e64fc>] (kernel_init) from [<c000e838>] (ret_from_fork+0x14/0x3c) Code: ebfff4ae e5943014 e5942018 e3530000 (e5823000) Let's create a per-user handle here so that clk_put() can properly unlink it and free the handle. Now that we allocate a clk structure here we need to free it if __clk_get() fails so bury the __clk_get() call in __of_clk_get_from_provider(). We need to handle the same problem in clk_get_sys() so export __clk_free_clk() to clkdev.c and do the same thing, except let's use a union to make this code #ifdef free. This fixes the above crash, properly calls __clk_get() when of_clk_get_from_provider() is called, and cleans up the clk structure on the error path of clk_get_sys(). Fixes: 035a61c3 "clk: Make clk API return per-user struct clk instances" Reported-by:
Sylwester Nawrocki <s.nawrocki@samsung.com> Reported-by:
Alban Browaeys <alban.browaeys@gmail.com> Tested-by:
Alban Browaeys <prahal@yahoo.com> Reviewed-by:
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- 04 Feb, 2015 1 commit
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Geert Uytterhoeven authored
Anyone may call clk_round_rate() with a zero rate value, so we have to protect against that. Signed-off-by:
Geert Uytterhoeven <geert+renesas@glider.be> Acked-by:
Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by:
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- 03 Feb, 2015 2 commits
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Stefan Wahren authored
According to i.MX23 and i.MX28 reference manual [1],[2] the fractional clock control register is 32-bit wide, but is separated in 4 parts. So write instructions must not apply to more than 1 part at once. The clk init for the i.MX28 violates this restriction and all the other accesses on that register suggest that there isn't such a restriction. This patch restricts the access to this register to byte instructions and extends the comment in the init functions. Btw the imx23 init now uses a R-M-W sequence just like imx28 init to avoid any clock glitches. The changes has been tested with a i.MX23 and a i.MX28 board. [1] - http://cache.freescale.com/files/dsp/doc/ref_manual/IMX23RM.pdf [2] - http://cache.freescale.com/files/dsp/doc/ref_manual/MCIMX28RM.pdfSigned-off-by:
Marek Vasut <marex@denx.de> Reviewed-by:
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Arnd Bergmann authored
The 'ARM: OMAP3: legacy clock data move under clk driver' patch series causes build errors when CONFIG_OMAP3 is not set: drivers/clk/ti/dpll.c: In function 'ti_clk_register_dpll': drivers/clk/ti/dpll.c:199:31: error: 'omap3_dpll_ck_ops' undeclared (first use in this function) const struct clk_ops *ops = &omap3_dpll_ck_ops; ^ drivers/clk/ti/dpll.c:199:31: note: each undeclared identifier is reported only once for each function it appears in drivers/clk/ti/dpll.c:259:10: error: 'omap3_dpll_per_ck_ops' undeclared (first use in this function) ops = &omap3_dpll_per_ck_ops; ^ drivers/built-in.o: In function `ti_clk_register_gate': drivers/clk/ti/gate.c:179: undefined reference to `clkhwops_omap3430es2_dss_usbhost_wait' drivers/clk/ti/gate.c:179: undefined reference to `clkhwops_am35xx_ipss_module_wait' -in.o: In function `ti_clk_register_interface': drivers/clk/ti/interface.c:100: undefined reference to `clkhwops_omap3430es2_iclk_hsotgusb_wait' drivers/clk/ti/interface.c:100: undefined reference to `clkhwops_omap3430es2_iclk_dss_usbhost_wait' drivers/clk/ti/interface.c:100: undefined reference to `clkhwops_omap3430es2_iclk_ssi_wait' drivers/clk/ti/interface.c:100: undefined reference to `clkhwops_am35xx_ipss_wait' drivers/built-in.o: In function `ti_clk_register_composite': :(.text+0x3da768): undefined reference to `ti_clk_build_component_gate' In order to fix that problem, this patch makes the omap3 legacy code compiled only when both CONFIG_OMAP3 and CONFIG_ATAGS are set. Signed-off-by:Arnd Bergmann <arnd@arndb.de> Acked-by:
Tony Lindgren <tony@atomide.com> Signed-off-by:
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- 02 Feb, 2015 19 commits
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git://nv-tegra.nvidia.com/user/pdeschrijver/linuxMichael Turquette authored
Tegra clock fixes for 3.20
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Michael Turquette authored
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git://linuxtv.org/snawrocki/samsungMichael Turquette authored
Exynos 3250, 4415 drivers cleanup by using common code and addition of clock definitions for DVFS on Exynos4.
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Tomeu Vizoso authored
So it can be used from modules such as clk-test.ko. Signed-off-by:
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Tomeu Vizoso authored
Adds a way for clock consumers to set maximum and minimum rates. This can be used for thermal drivers to set minimum rates, or by misc. drivers to set maximum rates to assure a minimum performance level. Changes the signature of the determine_rate callback by adding the parameters min_rate and max_rate. Signed-off-by:
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Michael Turquette authored
Private clock framework data structures should be private, surprisingly. Now that all platforms and drivers have been updated to remove static initializations of struct clk and struct clk_core objects and all references to clk-private.h have been removed we can move the definitions of these structures into drivers/clk/clk.c and delete the header. Additionally the ugly DEFINE_CLK macros have been removed. Those were used for static definitions of struct clk objects. That practice is no longer allowed. Finally __clk_init is staticized as it is no longer declared in any header. Reviewed-by:
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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 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:
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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:
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Mark Zhang authored
PLLD is the only parent for DSIA & DSIB on Tegra124 and Tegra132. Besides, BIT 30 in PLLD_MISC register controls the output of DSI clock. So this patch removes "dsia_mux" & "dsib_mux", and create a new clock "plld_dsi" to represent the DSI clock enable control. Signed-off-by:
Peter De Schrijver <pdeschrijver@nvidia.com> Signed-off-by:
Mark Zhang <markz@nvidia.com>
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Paul Walmsley authored
Tegra132 CAR supports almost the same clocks as Tegra124 CAR. This patch mostly deals with the small differences. Since Tegra132 contains many of the same PLL clock sources used on Tegra114 and Tegra124, enable them in drivers/clk/tegra/clk-pll.c when the kernel is configured to include Tegra132 support. This patch is based on several patches from others: 1. a patch from Peter De Schrijver: http://lkml.iu.edu/hypermail/linux/kernel/1407.1/06094.html 2. a patch from Bill Huang ("clk: tegra: enable cclk_g at boot on Tegra132"), and 3. a patch from Allen Martin ("clk: Enable tegra clock driver for tegra132"). Signed-off-by:
Paul Walmsley <paul@pwsan.com> Signed-off-by:
Paul Walmsley <pwalmsley@nvidia.com> Cc: Peter De Schrijver <pdeschrijver@nvidia.com> Cc: Allen Martin <amartin@nvidia.com> Cc: Prashant Gaikwad <pgaikwad@nvidia.com> Cc: Stephen Warren <swarren@wwwdotorg.org> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Alexandre Courbot <gnurou@gmail.com> Cc: Bill Huang <bilhuang@nvidia.com> Cc: Mike Turquette <mturquette@linaro.org> Cc: Stephen Boyd <sboyd@codeaurora.org>
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Peter De Schrijver authored
Tegra132 has almost the same clock structure than Tegra124. This patch documents the missing clock IDs. Signed-off-by:
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Paul Walmsley authored
Split the Tegra124 clock macros into two files: 1. Clock macros common to both Tegra124 and Tegra132 2. Clock macros specific to Tegra124 This was requested by Thierry in Message-ID <20140716072539.GD7978@ulmo>. Signed-off-by:
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Peter De Schrijver authored
tegra_clocks_apply_init_table() needs to be called after the udelay loop has been calibrated (see commit 441f199a ("clk: tegra: defer application of init table") for why that is). On existing Tegra SoCs this was done by calling tegra_clocks_apply_init_table() from tegra_dt_init(). To make this also work on ARM64, we need to change this into an initcall. tegra_dt_init() is called from customize_machine which is an arch_initcall. Therefore this should also work on existing 32bit Tegra SoCs. Tested on Tegra20 (ventana), Tegra30 (beaverboard), Tegra124 (jetson TK1) and Tegra132. Signed-off-by:
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Tomeu Vizoso authored
As previously the names of the present clock and its parent were swapped. Signed-off-by:
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Sean Paul authored
Set the parent of the dsi lp clocks to pll_p and the rate to 68MHz. The default parent is clk_m and rate is 12MHz, this is too slow to receive data from the peripheral. Per NVidia HW engineers, the optimal rate is 70MHz, but 68MHz will suffice. Signed-off-by:
Sean Paul <seanpaul@chromium.org> Signed-off-by:
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Andrew Bresticker authored
Since the SDMMC controller registers are accessed via the APB, the APB must be flushed before gating the SDMMC clocks to prevent register accesses to the SDMMC controllers after their clocks are gated. Signed-off-by:
Andrew Bresticker <abrestic@chromium.org> Signed-off-by:
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Linus Torvalds authored
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- 01 Feb, 2015 5 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds authored
Pull ARM SoC fixes from Olof Johansson: "One more week's worth of fixes. Worth pointing out here are: - A patch fixing detaching of iommu registrations when a device is removed -- earlier the ops pointer wasn't managed properly - Another set of Renesas boards get the same GIC setup fixup as others have in previous -rcs - Serial port aliases fixups for sunxi. We did the same to tegra but we caught that in time before the merge window due to more machines being affected. Here it took longer for anyone to notice. - A couple more DT tweaks on sunxi - A follow-up patch for the mvebu coherency disabling in last -rc batch" * tag 'armsoc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: arm: dma-mapping: Set DMA IOMMU ops in arm_iommu_attach_device() ARM: shmobile: r8a7790: Instantiate GIC from C board code in legacy builds ARM: shmobile: r8a73a4: Instantiate GIC from C board code in legacy builds ARM: mvebu: don't set the PL310 in I/O coherency mode when I/O coherency is disabled ARM: sunxi: dt: Fix aliases ARM: dts: sun4i: Add simplefb node with de_fe0-de_be0-lcd0-hdmi pipeline ARM: dts: sun6i: ippo-q8h-v5: Fix serial0 alias ARM: dts: sunxi: Fix usb-phy support for sun4i/sun5i -
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/inputLinus Torvalds authored
Pull input layer updates from Dmitry Torokhov: "Just a few quirks for PS/2 this time" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: elantech - add more Fujtisu notebooks to force crc_enabled Input: i8042 - add noloop quirk for Medion Akoya E7225 (MD98857) Input: synaptics - adjust min/max for Lenovo ThinkPad X1 Carbon 2nd
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Linus Torvalds authored
Commit 8eb23b9f ("sched: Debug nested sleeps") added code to report on nested sleep conditions, which we generally want to avoid because the inner sleeping operation can re-set the thread state to TASK_RUNNING, but that will then cause the outer sleep loop not actually sleep when it calls schedule. However, that's actually valid traditional behavior, with the inner sleep being some fairly rare case (like taking a sleeping lock that normally doesn't actually need to sleep). And the debug code would actually change the state of the task to TASK_RUNNING internally, which makes that kind of traditional and working code not work at all, because now the nested sleep doesn't just sometimes cause the outer one to not block, but will cause it to happen every time. In particular, it will cause the cardbus kernel daemon (pccardd) to basically busy-loop doing scheduling, converting a laptop into a heater, as reported by Bruno Prémont. But there may be other legacy uses of that nested sleep model in other drivers that are also likely to never get converted to the new model. This fixes both cases: - don't set TASK_RUNNING when the nested condition happens (note: even if WARN_ONCE() only _warns_ once, the return value isn't whether the warning happened, but whether the condition for the warning was true. So despite the warning only happening once, the "if (WARN_ON(..))" would trigger for every nested sleep. - in the cases where we knowingly disable the warning by using "sched_annotate_sleep()", don't change the task state (that is used for all core scheduling decisions), instead use '->task_state_change' that is used for the debugging decision itself. (Credit for the second part of the fix goes to Oleg Nesterov: "Can't we avoid this subtle change in behaviour DEBUG_ATOMIC_SLEEP adds?" with the suggested change to use 'task_state_change' as part of the test) Reported-and-bisected-by:
Bruno Prémont <bonbons@linux-vserver.org> Tested-by:
Rafael J Wysocki <rjw@rjwysocki.net> Acked-by:
Oleg Nesterov <oleg@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de>, Cc: Ilya Dryomov <ilya.dryomov@inktank.com>, Cc: Mike Galbraith <umgwanakikbuti@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Peter Hurley <peter@hurleysoftware.com>, Cc: Davidlohr Bueso <dave@stgolabs.net>, Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Rainer Koenig authored
Add two more Fujitsu LIFEBOOK models that also ship with the Elantech touchpad and don't work with crc_disabled to the quirk list. Signed-off-by:
Rainer Koenig <Rainer.Koenig@ts.fujitsu.com> Cc: stable@vger.kernel.org Signed-off-by:
Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Olof Johansson authored
Merge tag 'renesas-soc-fixes3-for-v3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into fixes Merge "Third Round of Renesas ARM Based SoC Fixes for v3.19" from Simon Horman: * Instantiate GIC from C board code in legacy builds on r8a7790 and r8a73a4 * tag 'renesas-soc-fixes3-for-v3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: ARM: shmobile: r8a7790: Instantiate GIC from C board code in legacy builds ARM: shmobile: r8a73a4: Instantiate GIC from C board code in legacy builds Signed-off-by:
Olof Johansson <olof@lixom.net>
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- 31 Jan, 2015 4 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linuxLinus Torvalds authored
Pull i2c fixes from Wolfram Sang: "i2c driver bugfixes (s3c2410, slave-eeprom, sh_mobile), size regression "bugfix" (i2c slave), documentation bugfix (st). Also, one documentation update (da9063), so some devicetrees can now be verified" * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: sh_mobile: terminate DMA reads properly i2c: Only include slave support if selected i2c: s3c2410: fix ABBA deadlock by keeping clock prepared i2c: slave-eeprom: fix boundary check when using sysfs i2c: st: Rename clock reference to something that exists DT: i2c: Add devices handled by the da9063 MFD driver
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-miscLinus Torvalds authored
Pull char/misc driver fixes from Greg KH: "Here are two tiny patches, one fixing up the drivers/Kconfig file, and one adding a MAINTAINERS entry for the UIO git tree" * tag 'char-misc-3.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: drivers/Kconfig: remove duplicate entry for soc MAINTAINERS: add git url entry for UIO
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/stagingLinus Torvalds authored
Pull staging tree fixes from Greg KH: "Here are two tiny staging tree fixes. One for the nvec driver to resolve a reported problem, and one to add a MAINTAINERS entry for the Android drivers" * tag 'staging-3.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: MAINTAINERS: add Android driver entries staging: nvec: specify a platform-device base id
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usbLinus Torvalds authored
Pull USB fixes from Greg KH: "Here are some small USB fixes and quirk additions for 3.19-rc7. All have been in linux-next for a while with no reported problems" * tag 'usb-3.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: USB: Add OTG PET device to TPL usb-storage/SCSI: blacklist FUA on JMicron 152d:2566 USB-SATA controller uas: Add no-report-opcodes quirk for Simpletech devices with id 4971:8017 storage: Revise/fix quirk for 04E6:000F SCM USB-SCSI converter usb: phy: never defer probe in non-OF case usb: dwc2: call dwc2_is_controller_alive() under spinlock
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