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* kbuild,gcov: simplify kernel/gcov/Makefile moreMasahiro Yamada2015-01-091-19/+4
| | | | | | | | | | | CONFIG_GCOV_FORMAT_3_4 / _4_7 / _AUTODETECT are exclusive. Compare the CC version only when _AUTODETECT is enabled. This change should have no impact. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Peter Oberparleiter <oberpar@linux.vnet.ibm.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
* kbuild: allow cc-ifversion to have the argument for false conditionMasahiro Yamada2015-01-092-4/+5
| | | | | | | | | The macro "try-run" can have an argument for each of true and false cases. Having an argument for the false case of cc-ifversion (and ld-ifversion) would be useful too. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
* kbuild,gcov: simplify kernel/gcov/MakefileMasahiro Yamada2015-01-091-3/+3
| | | | | | | | | | | Kbuild descends into kernel/gcov/ directory only when CONFIG_GCOV_KERNEL is enabled. (See kernel/Makefile) CONFIG_GCOV_KERNEL check can be omitted in kernel/gcov/Makefile. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Peter Oberparleiter <oberpar@linux.vnet.ibm.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
* kbuild,gcov: remove unnecessary workaroundMasahiro Yamada2015-01-091-12/+1
| | | | | | | | | | | | | Since commit 371fdc77af44 (kbuild: collect shorthands into scripts/Kbuild.include), scripts/Makefile.clean includes scripts/Kbuild.include. The workaround and the comment block in kernel/gcov/Makefile are no longer necessary. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Peter Oberparleiter <oberpar@linux.vnet.ibm.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
* kbuild: do not add $(call ...) to invoke cc-version or cc-fullversionMasahiro Yamada2015-01-096-13/+10
| | | | | | | | | The macros cc-version, cc-fullversion and ld-version take no argument. It is not necessary to add $(call ...) to invoke them. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Helge Deller <deller@gmx.de> [parisc] Signed-off-by: Michal Marek <mmarek@suse.cz>
* kbuild: fix cc-ifversion macroMasahiro Yamada2015-01-091-1/+1
| | | | | | | | The macro "cc-version" takes no argument. Drop $(CC) from the "cc-ifversion" definition. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
* kbuild: drop $(version_h) from MRPROPER_FILESMasahiro Yamada2015-01-081-1/+1
| | | | | | | | | | Now $(version_h) is include/generated/uapi/linux/version.h. $(version_h) in MRPROPER_FILES is redundant because it is covered by include/generated in MRPROPER_DIRS. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
* kbuild: use mixed-targets when two or more config targets are givenMasahiro Yamada2015-01-081-1/+1
| | | | | | | | | | | | | | | | "make kvmconfig" expects that the .config has already been created, but some people might want to create the .config and run kvmconfig in one shot command, like this: $ make defconfig kvmconfig To make sure this command works correctly even if -j* option is set, we must handle them one by one. This commit turns on mixed-targets when $(MAKECMDGOALS) includes at least one config target and also includes another target. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
* kbuild: remove redundant line from bounds.h/asm-offsets.hMasahiro Yamada2015-01-051-1/+0
| | | | | | | | This line produces an extra comment line for bounds.h and asm-offsets.h. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
* kbuild: merge bounds.h and asm-offsets.h rulesMasahiro Yamada2015-01-051-39/+21
| | | | | | | | The rules "cmd_bounds" and "cmd_offsets" are almost the same. (The difference is only the include guards.) They can be merged. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
* kbuild: Drop support for clean-ruleMichal Marek2015-01-021-3/+0
| | | | | | | | clean-rule has not been used since 94869f86 (kbuild: Accept absolute paths in clean-files and introduce clean-dirs) ten years ago. Tested-by: Sedat Dilek <sedat.dilek@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
* Linux 3.19-rc1v3.19-rc1Linus Torvalds2014-12-201-2/+2
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* Merge tag 'for-linus' of ↵Linus Torvalds2014-12-2010-25/+103
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/borntraeger/linux Pull ACCESS_ONCE cleanup preparation from Christian Borntraeger: "kernel: Provide READ_ONCE and ASSIGN_ONCE As discussed on LKML http://marc.info/?i=54611D86.4040306%40de.ibm.com ACCESS_ONCE might fail with specific compilers for non-scalar accesses. Here is a set of patches to tackle that problem. The first patch introduce READ_ONCE and ASSIGN_ONCE. If the data structure is larger than the machine word size memcpy is used and a warning is emitted. The next patches fix up several in-tree users of ACCESS_ONCE on non-scalar types. This does not yet contain a patch that forces ACCESS_ONCE to work only on scalar types. This is targetted for the next merge window as Linux next already contains new offenders regarding ACCESS_ONCE vs. non-scalar types" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/borntraeger/linux: s390/kvm: REPLACE barrier fixup with READ_ONCE arm/spinlock: Replace ACCESS_ONCE with READ_ONCE arm64/spinlock: Replace ACCESS_ONCE READ_ONCE mips/gup: Replace ACCESS_ONCE with READ_ONCE x86/gup: Replace ACCESS_ONCE with READ_ONCE x86/spinlock: Replace ACCESS_ONCE with READ_ONCE mm: replace ACCESS_ONCE with READ_ONCE or barriers kernel: Provide READ_ONCE and ASSIGN_ONCE
| * s390/kvm: REPLACE barrier fixup with READ_ONCEChristian Borntraeger2014-12-181-12/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | ACCESS_ONCE does not work reliably on non-scalar types. For example gcc 4.6 and 4.7 might remove the volatile tag for such accesses during the SRA (scalar replacement of aggregates) step (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58145) Commit 1365039d0cb3 ("KVM: s390: Fix ipte locking") replace ACCESS_ONCE with barriers. Lets use READ_ONCE instead. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
| * arm/spinlock: Replace ACCESS_ONCE with READ_ONCEChristian Borntraeger2014-12-181-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | ACCESS_ONCE does not work reliably on non-scalar types. For example gcc 4.6 and 4.7 might remove the volatile tag for such accesses during the SRA (scalar replacement of aggregates) step (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58145) Change the spinlock code to replace ACCESS_ONCE with READ_ONCE. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
| * arm64/spinlock: Replace ACCESS_ONCE READ_ONCEChristian Borntraeger2014-12-181-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | ACCESS_ONCE does not work reliably on non-scalar types. For example gcc 4.6 and 4.7 might remove the volatile tag for such accesses during the SRA (scalar replacement of aggregates) step (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58145) Change the spinlock code to replace ACCESS_ONCE with READ_ONCE. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
| * mips/gup: Replace ACCESS_ONCE with READ_ONCEChristian Borntraeger2014-12-181-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | ACCESS_ONCE does not work reliably on non-scalar types. For example gcc 4.6 and 4.7 might remove the volatile tag for such accesses during the SRA (scalar replacement of aggregates) step https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58145) Change the gup code to replace ACCESS_ONCE with READ_ONCE. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
| * x86/gup: Replace ACCESS_ONCE with READ_ONCEChristian Borntraeger2014-12-181-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | ACCESS_ONCE does not work reliably on non-scalar types. For example gcc 4.6 and 4.7 might remove the volatile tag for such accesses during the SRA (scalar replacement of aggregates) step (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58145) Change the gup code to replace ACCESS_ONCE with READ_ONCE. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
| * x86/spinlock: Replace ACCESS_ONCE with READ_ONCEChristian Borntraeger2014-12-181-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | ACCESS_ONCE does not work reliably on non-scalar types. For example gcc 4.6 and 4.7 might remove the volatile tag for such accesses during the SRA (scalar replacement of aggregates) step (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58145) Change the spinlock code to replace ACCESS_ONCE with READ_ONCE. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
| * mm: replace ACCESS_ONCE with READ_ONCE or barriersChristian Borntraeger2014-12-183-3/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ACCESS_ONCE does not work reliably on non-scalar types. For example gcc 4.6 and 4.7 might remove the volatile tag for such accesses during the SRA (scalar replacement of aggregates) step (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58145) Let's change the code to access the page table elements with READ_ONCE that does implicit scalar accesses for the gup code. mm_find_pmd is tricky, because m68k and sparc(32bit) define pmd_t as array of longs. This code requires just that the pmd_present and pmd_trans_huge check are done on the same value, so a barrier is sufficent. A similar case is in handle_pte_fault. On ppc44x the word size is 32 bit, but a pte is 64 bit. A barrier is ok as well. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Cc: linux-mm@kvack.org Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
| * kernel: Provide READ_ONCE and ASSIGN_ONCEChristian Borntraeger2014-12-181-0/+74
| | | | | | | | | | | | | | | | | | | | | | | | | | | | ACCESS_ONCE does not work reliably on non-scalar types. For example gcc 4.6 and 4.7 might remove the volatile tag for such accesses during the SRA (scalar replacement of aggregates) step https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58145) Let's provide READ_ONCE/ASSIGN_ONCE that will do all accesses via scalar types as suggested by Linus Torvalds. Accesses larger than the machines word size cannot be guaranteed to be atomic. These macros will use memcpy and emit a build warning. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
* | Merge tag 'clk-for-linus-3.19' of ↵Linus Torvalds2014-12-2094-690/+6663
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.linaro.org/people/mike.turquette/linux Pull clk framework updates from Mike Turquette: "This is much later than usual due to several last minute bugs that had to be addressed. As usual the majority of changes are new drivers and modifications to existing drivers. The core recieved many fixes along with the groundwork for several large changes coming in the future which will better parition clock providers from clock consumers" * tag 'clk-for-linus-3.19' of git://git.linaro.org/people/mike.turquette/linux: (86 commits) clk: samsung: Fix Exynos 5420 pinctrl setup and clock disable failure due to domain being gated ARM: OMAP3: clock: fix boot breakage in legacy mode ARM: OMAP2+: clock: fix DPLL code to use new determine rate APIs clk: Really fix deadlock with mmap_sem clk: mmp: fix sparse non static symbol warning clk: Change clk_ops->determine_rate to return a clk_hw as the best parent clk: change clk_debugfs_add_file to take a struct clk_hw clk: Don't expose __clk_get_accuracy clk: Don't try to use a struct clk* after it could have been freed clk: Remove unused function __clk_get_prepare_count clk: samsung: Fix double add of syscore ops after driver rebind clk: samsung: exynos4: set parent of sclk_hdmiphy to hdmi clk: samsung: exynos4415: Fix build with PM_SLEEP disabled clk: samsung: remove unnecessary inclusion of header files from clk.h clk: samsung: remove unnecessary CONFIG_OF from clk.c clk: samsung: Spelling s/bwtween/between/ clk: rockchip: Add support for the mmc clock phases using the framework clk: rockchip: add bindings for the mmc clocks clk: rockchip: rk3288 export i2s0_clkout for use in DT clk: rockchip: use clock ID for DMC (memory controller) on rk3288 ...
| * | clk: samsung: Fix Exynos 5420 pinctrl setup and clock disable failure due to ↵Krzysztof Kozlowski2014-12-171-1/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | domain being gated Audio subsystem clocks are located in separate block. On Exynos 5420 if clock for this block (from main clock domain) 'mau_epll' is gated then any read or write to audss registers will block. This kind of boot hang was observed on Arndale Octa and Peach Pi/Pit after introducing runtime PM to pl330 DMA driver. After that commit the 'mau_epll' was gated, because the "amba" clock was disabled and there were no more users of mau_epll. The system hang on one of steps: 1. Disabling unused clocks from audss block. 2. During audss GPIO setup (just before probing i2s0 because samsung_pinmux_setup() tried to access memory from audss block which was gated. Add a workaround for this by enabling the 'mau_epll' clock in probe. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Tested-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Tested-by: Kevin Hilman <khilman@linaro.org> Signed-off-by: Michael Turquette <mturquette@linaro.org>
| * | ARM: OMAP3: clock: fix boot breakage in legacy modeTero Kristo2014-12-151-9/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The new usage of determine_rate and set_rate_and_parent calls for OMAP DPLLs assumes the DPLLs must have two parents defined, even if it is the same clock. Legacy clock data did not fullfill this requirement and caused a boot crash. Fixed by adding the missing parent information to the DPLL clocks. Signed-off-by: Tero Kristo <t-kristo@ti.com> Fixes: 2e1a7b014f ("ARM: OMAP3+: DPLL: use determine_rate() and...") Cc: Paul Walmsley <paul@pwsan.com> Acked-by: Tony Lindgren <tony@atomide.com> Tested-by: Kevin Hilman <khilman@linaro.org> Reported-by: Kevin Hilman <khilman@linaro.org> Signed-off-by: Michael Turquette <mturquette@linaro.org>
| * | ARM: OMAP2+: clock: fix DPLL code to use new determine rate APIsTero Kristo2014-12-153-8/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | While the change for determine_rate clock operation was merged, the OMAP counterpart using these calls was overlooked for some reason, and caused boot failures on at least OMAP4 platforms. Fixed by updating the DPLL API calls to use the new parameters. Signed-off-by: Tero Kristo <t-kristo@ti.com> Fixes: 646cafc6aa ("clk: Change clk_ops->determine_rate") Cc: Tomeu Vizoso <tomeu.vizoso@collabora.com> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Paul Walmsley <paul@pwsan.com> Tested-by: Kevin Hilman <khilman@linaro.org> Reported-by: Kevin Hilman <khilman@linaro.org> Signed-off-by: Michael Turquette <mturquette@linaro.org>
| * | Merge tag 'for-v3.19/omap-a' of ↵Michael Turquette2014-12-159-63/+238
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into tmp Some OMAP clock/hwmod patches for v3.19. Most of the patches are clock-related. The DPLL implementation is changed to better align to the common clock framework. There is also a patch that removes a few lines from the hwmod code - this patch should have no functional effect. Basic build, boot, and PM test logs for these patches can be found here: http://www.pwsan.com/omap/testlogs/omap-a-for-v3.19/20141113094101/
| * | | clk: Really fix deadlock with mmap_semStephen Boyd2014-12-151-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 6314b6796e3c (clk: Don't hold prepare_lock across debugfs creation, 2014-09-04) forgot to update one place where we hold the prepare_lock while creating debugfs directories. This means we still have the chance of a deadlock that the commit was trying to fix. Actually fix it by moving the debugfs creation outside the prepare_lock. Cc: <stable@vger.kernel.org> # 3.18 Reported-by: Russell King <rmk+kernel@arm.linux.org.uk> Fixes: 6314b6796e3c "clk: Don't hold prepare_lock across debugfs creation" Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Michael Turquette <mturquette@linaro.org> [mturquette@linaro.org: removed lockdep_assert]
| * | | Merge tag 'for-v3.19-exynos-clk-2' of git://linuxtv.org/snawrocki/samsung ↵Michael Turquette2014-12-115-10/+12
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | into clk-next - exynos4415 and exynos audio subsystem clk driver (build with PM_SLEEP disabled, resource release) fixes - minor cleanups in drivers/clk/samsung/clk.c (spelling, includes) - modification of the exynos4 HDMI PHY clock definition to model dependency of "sclk_hdmiphy" on the "hdmi" clock
| | * | | clk: samsung: Fix double add of syscore ops after driver rebindKrzysztof Kozlowski2014-12-021-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | During driver unbind the syscore ops were not unregistered which lead to double add on syscore list: $ echo "3810000.audss-clock-controller" > /sys/bus/platform/drivers/exynos-audss-clk/unbind $ echo "3810000.audss-clock-controller" > /sys/bus/platform/drivers/exynos-audss-clk/bind [ 1463.044061] ------------[ cut here ]------------ [ 1463.047255] WARNING: CPU: 0 PID: 1 at lib/list_debug.c:36 __list_add+0x8c/0xc0() [ 1463.054613] list_add double add: new=c06e52c0, prev=c06e52c0, next=c06d5f84. [ 1463.061625] Modules linked in: [ 1463.064623] CPU: 0 PID: 1 Comm: bash Tainted: G W 3.18.0-rc5-next-20141121-00005-ga8fab06eab42-dirty #1022 [ 1463.075338] [<c0014e2c>] (unwind_backtrace) from [<c0011d80>] (show_stack+0x10/0x14) [ 1463.083046] [<c0011d80>] (show_stack) from [<c048bb70>] (dump_stack+0x70/0xbc) [ 1463.090236] [<c048bb70>] (dump_stack) from [<c00233d4>] (warn_slowpath_common+0x74/0xb0) [ 1463.098295] [<c00233d4>] (warn_slowpath_common) from [<c00234a4>] (warn_slowpath_fmt+0x30/0x40) [ 1463.106962] [<c00234a4>] (warn_slowpath_fmt) from [<c020fe80>] (__list_add+0x8c/0xc0) [ 1463.114760] [<c020fe80>] (__list_add) from [<c0282094>] (register_syscore_ops+0x30/0x3c) [ 1463.122819] [<c0282094>] (register_syscore_ops) from [<c0392f20>] (exynos_audss_clk_probe+0x36c/0x460) [ 1463.132091] [<c0392f20>] (exynos_audss_clk_probe) from [<c0283084>] (platform_drv_probe+0x48/0xa4) [ 1463.141013] [<c0283084>] (platform_drv_probe) from [<c0281a14>] (driver_probe_device+0x13c/0x37c) [ 1463.149852] [<c0281a14>] (driver_probe_device) from [<c0280560>] (bind_store+0x90/0xe0) [ 1463.157822] [<c0280560>] (bind_store) from [<c027fd10>] (drv_attr_store+0x20/0x2c) [ 1463.165363] [<c027fd10>] (drv_attr_store) from [<c0143898>] (sysfs_kf_write+0x4c/0x50) [ 1463.173252] [<c0143898>] (sysfs_kf_write) from [<c0142c80>] (kernfs_fop_write+0xbc/0x198) [ 1463.181395] [<c0142c80>] (kernfs_fop_write) from [<c00e2be0>] (vfs_write+0xa0/0x1a8) [ 1463.189104] [<c00e2be0>] (vfs_write) from [<c00e2f00>] (SyS_write+0x40/0x8c) [ 1463.196122] [<c00e2f00>] (SyS_write) from [<c000f2a0>] (ret_fast_syscall+0x0/0x48) [ 1463.203655] ---[ end trace 08f6710c9bc8d8f3 ]--- [ 1463.208244] exynos-audss-clk 3810000.audss-clock-controller: setup completed Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Fixes: 1241ef94ccc3 ("clk: samsung: register audio subsystem clocks using common clock framework") Cc: <stable@vger.kernel.org> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
| | * | | clk: samsung: exynos4: set parent of sclk_hdmiphy to hdmiAndrzej Hajda2014-12-021-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | sclk_hdmiphy clock is generated by HDMI-PHY and depends on hdmi gate clock. The patch models this dependency using parent/child hirerarchy. The patch fixes issue with system hangs during mixer device access, mixer uses sclk_hdmiphy descendant clock. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
| | * | | clk: samsung: exynos4415: Fix build with PM_SLEEP disabledKrzysztof Kozlowski2014-12-021-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix following build errors when PM_SLEEP is disabled (e.g. by disabling SUSPEND and HIBERNATION): drivers/clk/samsung/clk-exynos4415.c: In function ‘exynos4415_cmu_init’: drivers/clk/samsung/clk-exynos4415.c:982:2: error: ‘exynos4415_ctx’ undeclared (first use in this function) drivers/clk/samsung/clk-exynos4415.c:982:2: note: each undeclared identifier is reported only once for each function it appears in drivers/clk/samsung/clk-exynos4415.c: In function ‘exynos4415_cmu_dmc_init’: drivers/clk/samsung/clk-exynos4415.c:1123:2: error: ‘exynos4415_dmc_ctx’ undeclared (first use in this function) make[3]: *** [drivers/clk/samsung/clk-exynos4415.o] Error 1 Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
| | * | | clk: samsung: remove unnecessary inclusion of header files from clk.hPankaj Dubey2014-12-022-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Let's remove unnecessary include of header files from clk.h and add required one in clk.c Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com> [s.nawrocki@samsung.com: dropped removal of '#include <linux/syscore_ops.h>'] Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
| | * | | clk: samsung: remove unnecessary CONFIG_OF from clk.cPankaj Dubey2014-12-021-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove unnecessary CONFIG_OF from samsung/clk.c. Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
| | * | | clk: samsung: Spelling s/bwtween/between/Pankaj Dubey2014-12-021-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix a typo in comment section of "struct samsung_clk_provider". Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
| * | | | clk: mmp: fix sparse non static symbol warningWei Yongjun2014-12-111-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fixes the following sparse warnings: drivers/clk/mmp/clk-frac.c:113:6: warning: symbol 'clk_factor_init' was not declared. Should it be static? Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Michael Turquette <mturquette@linaro.org>
| * | | | clk: Change clk_ops->determine_rate to return a clk_hw as the best parentTomeu Vizoso2014-12-0314-49/+65
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is in preparation for clock providers to not have to deal with 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>
| * | | | clk: change clk_debugfs_add_file to take a struct clk_hwTomeu Vizoso2014-12-032-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Instead of struct clk, as this should be only used by providers. Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com> Reviewed-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Michael Turquette <mturquette@linaro.org>
| * | | | clk: Don't expose __clk_get_accuracyTomeu Vizoso2014-12-032-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As it's only used internally, in drivers/clk/clk.c. Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com> Reviewed-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Michael Turquette <mturquette@linaro.org>
| * | | | clk: Don't try to use a struct clk* after it could have been freedTomeu Vizoso2014-12-031-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As __clk_release could call kfree on clk and then we wouldn't have a safe way of getting the module that owns the clock. Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com> Fixes: fcb0ee6a3d33 ("clk: Implement clk_unregister") Reviewed-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Michael Turquette <mturquette@linaro.org>
| * | | | clk: Remove unused function __clk_get_prepare_countTomeu Vizoso2014-12-032-6/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com> Reviewed-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Michael Turquette <mturquette@linaro.org>
| * | | | Merge tag 'ib-mfd-regulator-clk-v3.19' of ↵Michael Turquette2014-11-288-24/+374
| |\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd into clk-next Immutable branch between MFD, Regulator and Clk, due for v3.19
| * \ \ \ \ Merge tag 'v3.19-rockchip-clk2' of ↵Michael Turquette2014-11-288-50/+315
| |\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into clk-next - clock phase setting capability for the rk3288 mmc clocks - pll init to allow syncing to actual rate table values - some more exported clocks - fixes for some clocks (typos etc) all of them not yet used in actual drivers
| | * | | | | clk: rockchip: Add support for the mmc clock phases using the frameworkAlexandru M Stan2014-11-285-0/+198
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds the 2 physical clocks for the mmc (drive and sample). They're mostly there for the phase properties, but they also show the true clock (by dividing by RK3288_MMC_CLKGEN_DIV). The drive and sample phases are generated by dividing an upstream parent clock by 2, this allows us to adjust the phase by 90 deg. There's also an option to have up to 255 delay elements (40-80 picoseconds long). This driver uses those elements (under the assumption that they're 60 ps long) to generate approximate 22.5 degrees options. 67.5 (22.5*3) might be as high as 90 deg if the delay elements are as big as 80 ps, so a finer division (smaller than 22.5) was not picked because the phase might not be monotonic anymore. Suggested-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Alexandru M Stan <amstan@chromium.org> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
| | * | | | | clk: rockchip: add bindings for the mmc clocksAlexandru M Stan2014-11-281-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These clocks represent the physical clocks (including phases) and they will later be used for clock phase tuning. Suggested-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Alexandru M Stan <amstan@chromium.org> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
| | * | | | | clk: rockchip: rk3288 export i2s0_clkout for use in DTSonny Rao2014-11-282-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This exposes the clock that comes out of the i2s block which generally goes to the audio codec. Signed-off-by: Sonny Rao <sonnyrao@chromium.org> [removed CLK_SET_RATE_PARENT from original patch] Signed-off-by: Heiko Stuebner <heiko@sntech.de>
| | * | | | | clk: rockchip: use clock ID for DMC (memory controller) on rk3288Jeff Chen2014-11-261-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The DMC clocks need to be turned off at runtime. Use the newly assigned clock IDs to export them. Signed-off-by: Jeff Chen <cym@rock-chips.com> [dianders: split into two patches; adjusted commit msg] Signed-off-by: Doug Anderson <dianders@chromium.org> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
| | * | | | | clk: rockchip: add binding ID for DMC (memory controller) clocks on rk3288Jeff Chen2014-11-261-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The DMC clocks need to be turned off at runtime, so we should have IDs so we can export them. Signed-off-by: Jeff Chen <cym@rock-chips.com> [dianders: split into two patches; adjusted commit msg] Signed-off-by: Doug Anderson <dianders@chromium.org> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
| | * | | | | clk: rockchip: add ROCKCHIP_PLL_SYNC_RATE flag to some pllsHeiko Stuebner2014-11-252-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add the new flag to gpll and cpll on rk3188 and similar and to gpll, cpll and npll on rk3288. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Kever Yang <kever.yang@rock-chips.com> Tested-by: Kever Yang <kever.yang@rock-chips.com>
| | * | | | | clk: rockchip: add optional sync to pll rate parametersHeiko Stuebner2014-11-252-0/+56
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In some cases firmware brings up plls with different parameters than the ones noted in the rate table for the specific frequency. These firmware-selected parameters are worse than the tested ones in the pll rate tables but cannot be changed by a simple clk_set_rate call when the rate stays the same. Therefore add a ROCKCHIP_PLL_SYNC_RATE flag and implement an init callback that checks the runtime-parameters against the matching rate table entry and adjusts them to the table-ones if necessary. If no rate table is set or the current rate does not match any rate-table entry no changes are made. Being able to limit this adjustment to specific plls is necessary to not touch the ones supplying core components like the apll and dpll supplying the armcores and dram. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Kever Yang <kever.yang@rock-chips.com> Tested-by: Kever Yang <kever.yang@rock-chips.com>
| | * | | | | clk: rockchip: setup pll_mux data earlierHeiko Stuebner2014-11-251-14/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In some cases we might need to access the data of the pll mux before the actual mux gets registered - like in the following patch adding an init-callback. Therefore populate pll_mux before registering the core pll-clock. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Kever Yang <kever.yang@rock-chips.com> Tested-by: Kever Yang <kever.yang@rock-chips.com>
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-12 07:34:54 +0000