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2015-02-18Revert "clk: mxs: Fix invalid 32-bit access to frac registers"Stefan Wahren3-31/+18
Revert commit 039e59707507 (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: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Michael Turquette <mturquette@linaro.org>
2015-02-18clk: qoriq: Add support for the platform PLLEmil Medve1-0/+83
Change-Id: Iac11ed95f274485a86d2c11f32a3dc502bcd020f Signed-off-by: Emil Medve <Emilian.Medve@Freescale.com> Acked-by: Tang Yuantian <Yuantian.Tang@freescale.com> Signed-off-by: Michael Turquette <mturquette@linaro.org>
2015-02-18clk: Replace explicit clk assignment with __clk_hw_set_clkJavier Martinez Canillas5-35/+35
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: 035a61c314eb3 ("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: Michael Turquette <mturquette@linaro.org>
2015-02-18clk: Don't dereference parent clock if is NULLJavier Martinez Canillas1-2/+2
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: 035a61c314eb3 ("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: Michael Turquette <mturquette@linaro.org>
2015-02-06clkdev: Always allocate a struct clk and call __clk_get() w/ CCFStephen Boyd3-37/+59
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: 035a61c314eb "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: Sylwester Nawrocki <s.nawrocki@samsung.com> Tested-by: Alban Browaeys <prahal@yahoo.com> Reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Michael Turquette <mturquette@linaro.org>
2015-02-04clk: shmobile: div6: Avoid division by zero in .round_rate()Geert Uytterhoeven1-0/+3
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: Michael Turquette <mturquette@linaro.org>
2015-02-03clk: mxs: Fix invalid 32-bit access to frac registersStefan Wahren3-18/+31
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.pdf Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Reviewed-by: Marek Vasut <marex@denx.de> Reviewed-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Michael Turquette <mturquette@linaro.org>
2015-02-03clk: omap: compile legacy omap3 clocks conditionallyArnd Bergmann6-2/+14
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: Michael Turquette <mturquette@linaro.org>
2015-02-02Merge tag 'tegra-clk-3.20' of ↵Michael Turquette7-52/+172
git://nv-tegra.nvidia.com/user/pdeschrijver/linux into clk-next Tegra clock fixes for 3.20
2015-02-02Merge branch 'clk-next' into v3.19-rc7Michael Turquette74-1117/+11388
2015-02-02Merge tag 'v3.20-exynos-clk' of git://linuxtv.org/snawrocki/samsung into ↵Michael Turquette5-347/+112
clk-next Exynos 3250, 4415 drivers cleanup by using common code and addition of clock definitions for DVFS on Exynos4.
2015-02-02clkdev: Export clk_register_clkdevTomeu Vizoso1-0/+1
So it can be used from modules such as clk-test.ko. Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com> Reviewed-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Michael Turquette <mturquette@linaro.org>
2015-02-02clk: Add rate constraints to clocksTomeu Vizoso12-58/+254
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: Tomeu Vizoso <tomeu.vizoso@collabora.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> [sboyd@codeaurora.org: set req_rate in __clk_init] Signed-off-by: Michael Turquette <mturquette@linaro.org> [mturquette@linaro.org: min/max rate for sun6i_ahb1_clk_determine_rate migrated clk-private.h changes to clk.c]
2015-02-02clk: remove clk-private.hMichael Turquette1-2/+39
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: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Michael Turquette <mturquette@linaro.org>
2015-02-02pci: xgene: do not use clk-private.hMichael Turquette1-1/+1
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>
2015-02-02Merge branch 'clk-omap-legacy' into clk-nextMichael Turquette10-73/+5504
Conflicts: arch/arm/mach-omap2/cclock3xxx_data.c
2015-02-02clk: Make clk API return per-user struct clk instancesTomeu Vizoso3-244/+476
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: Tony Lindgren <tony@atomide.com> Signed-off-by: Michael Turquette <mturquette@linaro.org> [mturquette@linaro.org: adapted clk_has_parent to struct clk_core applied OMAP3+ DPLL fix from Tero & Tony]
2015-02-02clk: tegra: Define PLLD_DSI and remove dsia(b)_muxMark Zhang4-26/+24
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>
2015-02-02clk: tegra: Add support for the Tegra132 CAR IP blockPaul Walmsley3-12/+129
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>
2015-02-02clk: tegra: make tegra_clocks_apply_init_table() arch_initcallPeter De Schrijver1-2/+5
tegra_clocks_apply_init_table() needs to be called after the udelay loop has been calibrated (see commit 441f199a37cfd66c5dd8dd45490bd3ea6971117d ("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: Peter De Schrijver <pdeschrijver@nvidia.com> [paul@pwsan.com: tweaked the commit message] Signed-off-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Paul Walmsley <pwalmsley@nvidia.com> Cc: Thierry Reding <treding@nvidia.com> Cc: Prashant Gaikwad <pgaikwad@nvidia.com> Cc: Mike Turquette <mturquette@linaro.org> Cc: Stephen Boyd <sboyd@codeaurora.org> Cc: Stephen Warren <swarren@wwwdotorg.org> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Alexandre Courbot <gnurou@gmail.com>
2015-02-02clk: tegra: Fix order of arguments in WARNTomeu Vizoso1-4/+4
As previously the names of the present clock and its parent were swapped. Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com> Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
2015-02-02clk: tegra124: Add init data for dsi lp clocksSean Paul1-0/+2
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: Peter De Schrijver <pdeschrijver@nvidia.com>
2015-02-02clk: tegra: SDMMC controllers are on APBAndrew Bresticker1-8/+8
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: Peter De Schrijver <pdeschrijver@nvidia.com>
2015-02-01Merge branch 'for-linus' of ↵Linus Torvalds3-3/+28
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 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
2015-02-01Input: elantech - add more Fujtisu notebooks to force crc_enabledRainer Koenig1-0/+16
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>
2015-01-31Merge branch 'i2c/for-current' of ↵Linus Torvalds5-9/+33
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 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
2015-01-30Merge tag 'char-misc-3.19-rc7' of ↵Linus Torvalds1-2/+0
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc 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
2015-01-30Merge tag 'staging-3.19-rc7' of ↵Linus Torvalds1-6/+3
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging 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
2015-01-30Merge tag 'usb-3.19-rc7' of ↵Linus Torvalds6-5/+28
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb 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
2015-01-30clk: ti: add omap3 legacy clock dataTero Kristo2-1/+4655
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: Tero Kristo <t-kristo@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Michael Turquette <mturquette@linaro.org>
2015-01-30clk: ti: composite: add support for legacy composite clock initTero Kristo3-4/+46
Legacy clock data is initialized slightly differently compared to DT clocks, thus add support for this. Signed-off-by: Tero Kristo <t-kristo@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Michael Turquette <mturquette@linaro.org>
2015-01-30clk: ti: dpll: add support for legacy DPLL initTero Kristo3-11/+113
Legacy clock data is initialized slightly differently compared to DT clocks, thus add support for this. Signed-off-by: Tero Kristo <t-kristo@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Michael Turquette <mturquette@linaro.org>
2015-01-30clk: ti: divider: add support for legacy divider initTero Kristo3-1/+136
Legacy clock data is initialized slightly differently compared to DT clocks, thus add support for this. Signed-off-by: Tero Kristo <t-kristo@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Michael Turquette <mturquette@linaro.org>
2015-01-30clk: ti: interface: add support for legacy interface clock initTero Kristo3-24/+76
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: Tero Kristo <t-kristo@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Michael Turquette <mturquette@linaro.org>
2015-01-30clk: ti: gate: add support for legacy gate initTero Kristo3-30/+133
Legacy clock data is initialialized slightly differently compared to DT clocks, thus add support for this. Signed-off-by: Tero Kristo <t-kristo@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Michael Turquette <mturquette@linaro.org>
2015-01-30clk: ti: mux: add support for legacy mux initTero Kristo3-2/+75
Legacy clock data is initialized slightly differently compared to DT clocks, thus add support for this. Signed-off-by: Tero Kristo <t-kristo@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Michael Turquette <mturquette@linaro.org>
2015-01-30clk: ti: add core support for initializing legacy clocksTero Kristo2-0/+270
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: Tero Kristo <t-kristo@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Michael Turquette <mturquette@linaro.org>
2015-01-30Merge tag 'iommu-fixes-v3.19-rc6' of ↵Linus Torvalds1-1/+2
git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu Pull IOMMU fixes from Joerg Roedel: "Two small fixes for the Tegra GART IOMMU driver: - provide a .map_sg function for iommu_ops - do not register Tegra GART driver as a workaround because of issues with it when used from DRM code" * tag 'iommu-fixes-v3.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: iommu/tegra: gart: Provide default ->map_sg() callback iommu/tegra: gart: Do not register with bus
2015-01-30i2c: sh_mobile: terminate DMA reads properlyWolfram Sang1-1/+11
DMA read requests could miss proper termination, so two more bytes would have been read via PIO overwriting the end of the buffer with wrong data. Make DMA stop handling more readable while we are here. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2015-01-30Merge tag 'drm-intel-fixes-2015-01-29' of ↵Dave Airlie4-26/+19
git://anongit.freedesktop.org/drm-intel into drm-fixes misc i915 fixes, mostly all stable material as well. * tag 'drm-intel-fixes-2015-01-29' of git://anongit.freedesktop.org/drm-intel: drm/i915: BDW Fix Halo PCI IDs marked as ULT. drm/i915: Fix and clean BDW PCH identification drm/i915: Only fence tiled region of object. drm/i915: fix inconsistent brightness after resume drm/i915: Init PPGTT before context enable
2015-01-30drm: fix fb-helper vs MST dangling connector ptrs (v2)Rob Clark1-0/+30
VT switch back/forth from console to xserver (for example) has potential to go horribly wrong if a dynamic DP MST connector ends up in the saved modeset that is restored when switching back to fbcon. When removing a dynamic connector, don't forget to clean up the saved state. v1: original v2: null out set->fb if no more connectors to avoid making i915 cranky Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1184968 Cc: stable@vger.kernel.org #v3.17+ Signed-off-by: Rob Clark <robdclark@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2015-01-29Merge tag 'dm-3.19-fixes-3' of ↵Linus Torvalds2-4/+11
git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm Pull device mapper fixes from Mike Snitzer: "One stable fix for a dm-cache 3.19-rc6 regression and one stable fix for dm-thin: - fix DM cache metadata open/lookup error paths to properly use ERR_PTR and IS_ERR (fixes: 3.19-rc6 "stable" commit 9b1cc9f251) - fix DM thin-provisioning to disallow userspace from sending messages to the thin-pool if the pool is in READ_ONLY or FAIL mode since no metadata changes are allowed in these modes" * tag 'dm-3.19-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: dm thin: don't allow messages to be sent to a pool target in READ_ONLY or FAIL mode dm cache: fix missing ERR_PTR returns and handling
2015-01-29Merge branch 'for-linus' of ↵Linus Torvalds1-18/+7
git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client Pull Ceph fixes from Sage Weil: "These paches from Ilya finally squash a race condition with layered images that he's been chasing for a while" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: rbd: drop parent_ref in rbd_dev_unprobe() unconditionally rbd: fix rbd_dev_parent_get() when parent_overlap == 0
2015-01-29Merge tag 'pinctrl-v3.19-4' of ↵Linus Torvalds1-53/+55
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl Pull final pin control fix from Linus Walleij: "A late pin control fix for the v3.19 series: The AT91 gpio controller would miss wakeup events, this single fix make it work properly" [ "Final"? Yeah, I'll believe that once I've actually released 3.19 ;) - Linus ] * tag 'pinctrl-v3.19-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: pinctrl: at91: allow to have disabled gpio bank
2015-01-29vm: add VM_FAULT_SIGSEGV handling supportLinus Torvalds1-1/+1
The core VM already knows about VM_FAULT_SIGBUS, but cannot return a "you should SIGSEGV" error, because the SIGSEGV case was generally handled by the caller - usually the architecture fault handler. That results in lots of duplication - all the architecture fault handlers end up doing very similar "look up vma, check permissions, do retries etc" - but it generally works. However, there are cases where the VM actually wants to SIGSEGV, and applications _expect_ SIGSEGV. In particular, when accessing the stack guard page, libsigsegv expects a SIGSEGV. And it usually got one, because the stack growth is handled by that duplicated architecture fault handler. However, when the generic VM layer started propagating the error return from the stack expansion in commit fee7e49d4514 ("mm: propagate error from stack expansion even for guard page"), that now exposed the existing VM_FAULT_SIGBUS result to user space. And user space really expected SIGSEGV, not SIGBUS. To fix that case, we need to add a VM_FAULT_SIGSEGV, and teach all those duplicate architecture fault handlers about it. They all already have the code to handle SIGSEGV, so it's about just tying that new return value to the existing code, but it's all a bit annoying. This is the mindless minimal patch to do this. A more extensive patch would be to try to gather up the mostly shared fault handling logic into one generic helper routine, and long-term we really should do that cleanup. Just from this patch, you can generally see that most architectures just copied (directly or indirectly) the old x86 way of doing things, but in the meantime that original x86 model has been improved to hold the VM semaphore for shorter times etc and to handle VM_FAULT_RETRY and other "newer" things, so it would be a good idea to bring all those improvements to the generic case and teach other architectures about them too. Reported-and-tested-by: Takashi Iwai <tiwai@suse.de> Tested-by: Jan Engelhardt <jengelh@inai.de> Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com> # "s390 still compiles and boots" Cc: linux-arch@vger.kernel.org Cc: stable@vger.kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-01-28clk: Remove __clk_registerTomeu Vizoso1-42/+0
As it has never been used. Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com> Reviewed-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Michael Turquette <mturquette@linaro.org>
2015-01-28clk: Remove unneeded NULL checksTomeu Vizoso1-9/+0
As clk_unprepare_unused_subtree and clk_disable_unused_subtree are always called with a valid struct clk. Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com> Reviewed-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Michael Turquette <mturquette@linaro.org>
2015-01-28clk: qoriq: Use pr_fmt()Emil Medve1-2/+5
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: Michael Turquette <mturquette@linaro.org>
2015-01-28clk: qoriq: Replace kzalloc() with kmalloc()Emil Medve1-1/+1
Where the memset() is not necessary Signed-off-by: Emil Medve <Emilian.Medve@Freescale.com> Signed-off-by: Michael Turquette <mturquette@linaro.org>
2015-01-28clk: qoriq: Make local symbol 'static'Emil Medve1-1/+1
drivers/clk/clk-qoriq.c:59:22: warning: symbol 'cmux_ops' was not declared. Should it be static? Signed-off-by: Emil Medve <Emilian.Medve@Freescale.com> Signed-off-by: Michael Turquette <mturquette@linaro.org>
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-12 00:49:31 +0000