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* Merge tag 'kbuild-v4.12' of ↵Linus Torvalds2017-05-1016-369/+324
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull Kbuild updates from Masahiro Yamada: - improve Clang support - clean up various Makefiles - improve build log visibility (objtool, alpha, ia64) - improve compiler flag evaluation for better build performance - fix GCC version-dependent warning - fix genksyms * tag 'kbuild-v4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (23 commits) kbuild: dtbinst: remove unnecessary __dtbs_install_prep target ia64: beatify build log for gate.so and gate-syms.o alpha: make short build log available for division routines alpha: merge build rules of division routines alpha: add $(src)/ rather than $(obj)/ to make source file path Makefile: evaluate LDFLAGS_BUILD_ID only once objtool: make it visible in make V=1 output kbuild: clang: add -no-integrated-as to KBUILD_[AC]FLAGS kbuild: Add support to generate LLVM assembly files kbuild: Add better clang cross build support kbuild: drop -Wno-unknown-warning-option from clang options kbuild: fix asm-offset generation to work with clang kbuild: consolidate redundant sed script ASM offset generation frv: Use OFFSET macro in DEF_*REG() kbuild: avoid conflict between -ffunction-sections and -pg on gcc-4.7 kbuild: Consolidate header generation from ASM offset information kbuild: use -Oz instead of -Os when using clang kbuild, LLVMLinux: Add -Werror to cc-option to support clang Kbuild: make designated_init attribute fatal kbuild: drop unneeded patterns '.*.orig' and '.*.rej' from distclean ...
| * kbuild: dtbinst: remove unnecessary __dtbs_install_prep targetMasahiro Yamada2017-05-081-8/+0
| | | | | | | | | | | | | | | | | | | | Since commit 5399eb9b3908 ("dtbsinstall: don't move target directory out of the way"), the target __dtbs_install_prep is invoked just for creating the install directory, but all the necessary directories are automatically created by: cmd_dtb_install = mkdir -p $(2); cp $< $(2) Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
| * ia64: beatify build log for gate.so and gate-syms.oMasahiro Yamada2017-05-031-1/+1
| | | | | | | | | | | | | | | | | | | | | | Currently, the object path is not aligned in the build log: LDS arch/ia64/kernel/gate.lds AS arch/ia64/kernel/gate.o GATE arch/ia64/kernel/gate.so AS arch/ia64/kernel/gate-data.o Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
| * alpha: make short build log available for division routinesMasahiro Yamada2017-05-031-2/+2
| | | | | | | | | | | | | | | | | | | | | | This enables the Kbuild standard log style as follows: AS arch/alpha/lib/__divlu.o AS arch/alpha/lib/__divqu.o AS arch/alpha/lib/__remlu.o AS arch/alpha/lib/__remqu.o Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
| * alpha: merge build rules of division routinesMasahiro Yamada2017-05-031-7/+2
| | | | | | | | | | | | | | These four objects are generated by the same build rule, with different compile options. The build rules can be merged. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
| * alpha: add $(src)/ rather than $(obj)/ to make source file pathMasahiro Yamada2017-05-031-4/+4
| | | | | | | | | | | | | | $(ev6-y)divide.S is a source file, not a build-time generated file. So, it should be prefixed with $(src)/ rather than $(obj)/. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
| * Makefile: evaluate LDFLAGS_BUILD_ID only onceRabin Vincent2017-05-031-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Evaluate LDFLAGS_BUILD_ID (which involves invoking the compiler) only once instead of over and over. This provides a ~20% reduction in null build time with x86 allnoconfig: $ make allnoconfig && make -j8 $ perf stat -r5 -e sched:sched_process_exec make -j8 - 2 119 sched:sched_process_exec + 1 878 sched:sched_process_exec - 1,238817018 seconds time elapsed + 0,971020553 seconds time elapsed Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
| * objtool: make it visible in make V=1 outputJiri Slaby2017-05-031-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | It is currently impossible to see what is going on with objtool when building, so call echo-cmd to see the actions: gcc -Wp,-MD,arch/x86/entry/.entry_64.o.d -nostdinc -isystem ... ./tools/objtool/objtool check "arch/x86/entry/entry_64.o"; Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Michal Marek <mmarek@suse.com> Cc: linux-kbuild@vger.kernel.org Cc: Josh Poimboeuf <jpoimboe@redhat.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
| * kbuild: clang: add -no-integrated-as to KBUILD_[AC]FLAGSMichael Davidson2017-04-281-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The Linux Kernel relies on GCC's acceptance of inline assembly as an opaque object which will not have any validation performed on the content. The current behaviour in LLVM is to perform validation of the contents by means of parsing the input if the MC layer can handle it. Disable clangs integrated assembler and use the GNU assembler instead. Wording-mostly-from: Saleem Abdulrasool <compnerd@compnerd.org> Signed-off-by: Michael Davidson <md@google.com> Signed-off-by: Matthias Kaehlcke <mka@chromium.org> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
| * kbuild: Add support to generate LLVM assembly filesVinícius Tinti2017-04-253-0/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | Add rules to kbuild in order to generate LLVM assembly files with the .ll extension when using clang. # from c code make CC=clang kernel/pid.ll Signed-off-by: Vinícius Tinti <viniciustinti@gmail.com> Signed-off-by: Behan Webster <behanw@converseincode.com> Signed-off-by: Matthias Kaehlcke <mka@chromium.org> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
| * kbuild: Add better clang cross build supportBehan Webster2017-04-231-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add cross target to CC if using clang. Also add custom gcc toolchain path for fallback gcc tools. Clang will fallback to using things like ld, as, and libgcc if (respectively) one of the llvm linkers isn't available, the integrated assembler is turned off, or an appropriately cross-compiled version of compiler-rt isn't available. To this end, you can specify the path to this fallback gcc toolchain with GCC_TOOLCHAIN. Signed-off-by: Behan Webster <behanw@converseincode.com> Reviewed-by: Jan-Simon Möller <dl9pf@gmx.de> Reviewed-by: Mark Charlebois <charlebm@gmail.com> Signed-off-by: Greg Hackmann <ghackmann@google.com> Signed-off-by: Matthias Kaehlcke <mka@chromium.org> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
| * kbuild: drop -Wno-unknown-warning-option from clang optionsMasahiro Yamada2017-04-232-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since commit c3f0d0bc5b01 ("kbuild, LLVMLinux: Add -Werror to cc-option to support clang"), cc-option and friends work nicely for clang. However, -Wno-unknown-warning-option makes clang happy with any unknown warning options even if -Werror is specified. Once -Wno-unknown-warning-option is added, any succeeding call of cc-disable-warning is evaluated positive, then unknown warning options are accepted. This should be dropped. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
| * kbuild: fix asm-offset generation to work with clangJeroen Hofstee2017-04-232-5/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | KBuild abuses the asm statement to write to a file and clang chokes about these invalid asm statements. Hack it even more by fooling this is actual valid asm code. [masahiro: Import Jeroen's work for U-Boot: http://patchwork.ozlabs.org/patch/375026/ Tweak sed script a little to avoid garbage '#' for GCC case, like #define NR_PAGEFLAGS 23 /* __NR_PAGEFLAGS # */ ] Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Matthias Kaehlcke <mka@chromium.org> Tested-by: Matthias Kaehlcke <mka@chromium.org>
| * kbuild: consolidate redundant sed script ASM offset generationMasahiro Yamada2017-04-231-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This part ended up in redundant code after touched by multiple people. [1] Commit 3234282f33b2 ("x86, asm: Fix CFI macro invocations to deal with shortcomings in gas") added parentheses for defined expressions to support old gas for x86. [2] Commit a22dcdb0032c ("x86, asm: Fix ancient-GAS workaround") split the pattern into two to avoid parentheses for non-numeric expressions. [3] Commit 95a2f6f72d37 ("Partially revert patch that encloses asm-offset.h numbers in brackets") removed parentheses from numeric expressions as well because parentheses in MN10300 assembly have a special meaning (pointer access). Apparently, there is a conflict between [1] and [3]. After all, [3] took precedence, and a long time has passed since then. Now, merge the two patterns again because the first one is covered by the other. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
| * frv: Use OFFSET macro in DEF_*REG()Matthias Kaehlcke2017-04-191-15/+4
| | | | | | | | | | | | | | | | | | Avoid code duplication by using OFFSET() in DEF_*REG() instead of replicating the macro. Signed-off-by: Matthias Kaehlcke <mka@chromium.org> Reviewed-by: David Howells <dhowells@redhat.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
| * kbuild: avoid conflict between -ffunction-sections and -pg on gcc-4.7Masahiro Yamada2017-04-181-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Arnd Bergmann reported: "When ftrace is enabled and we build with gcc-4.7 or older, we get a warning for each file on architectures that select CONFIG_LD_DEAD_CODE_DATA_ELIMINATION: warning: -ffunction-sections disabled; it makes profiling impossible [enabled by default] " Since commit c3f0d0bc5b01 ("kbuild, LLVMLinux: Add -Werror to cc-option to support clang"), warnings are treated as errors in cc-option checks. CC_FLAGS_FTRACE is blindly added to KBUILD_CFLAGS, so $(call cc-option,-ffunction-sections,) should be moved below it in order to detect the conflict between the two options. Reported-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
| * kbuild: Consolidate header generation from ASM offset informationMatthias Kaehlcke2017-04-134-75/+32
| | | | | | | | | | | | | | | | | | Largely redundant code is used in different places to generate C headers from offset information extracted from assembly language output. Consolidate the code in Makefile.lib and use this instead. Signed-off-by: Matthias Kaehlcke <mka@chromium.org> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
| * kbuild: use -Oz instead of -Os when using clangBehan Webster2017-04-131-1/+2
| | | | | | | | | | | | | | | | This generates smaller resulting object code when compiled with clang. Signed-off-by: Behan Webster <behanw@converseincode.com> Signed-off-by: Matthias Kaehlcke <mka@chromium.org> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
| * kbuild, LLVMLinux: Add -Werror to cc-option to support clangMark Charlebois2017-04-121-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Clang will warn about unknown warnings but will not return false unless -Werror is set. GCC will return false if an unknown warning is passed. Adding -Werror make both compiler behave the same. [arnd: it turns out we need the same patch for testing whether -ffunction-sections works right with gcc. I've build tested extensively with this patch applied, so let's just merge this one now.] Signed-off-by: Mark Charlebois <charlebm@gmail.com> Signed-off-by: Behan Webster <behanw@converseincode.com> Reviewed-by: Jan-Simon Möller <dl9pf@gmx.de> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Kees Cook <keescook@chromium.org> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
| * Kbuild: make designated_init attribute fatalKees Cook2017-03-221-0/+3
| | | | | | | | | | | | | | | | | | | | | | If a structure is marked with __attribute__((designated_init)) from GCC or Sparse, it needs to have all static initializers using designated initialization. Fail the build for any missing cases. This attribute will be used by the randstruct plugin to make sure randomized structures are being correctly initialized. Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
| * kbuild: drop unneeded patterns '.*.orig' and '.*.rej' from distcleanMasahiro Yamada2017-03-151-2/+2
| | | | | | | | | | | | | | The patterns '.*.orig' and '.*.rej' are cleaned away by '*.orig' and '*.rej' seen two lines above. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
| * Kbuild: fix file name in comment about extra gcc checksSeung-Woo Kim2017-03-111-1/+1
| | | | | | | | | | | | | | | | Extra gcc checks like W=1 were moved to scripts/Makefile.exrawarn, so the file name in comment needs to be fixed. Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
| * Merge branch 'kbuild' of ↵Masahiro Yamada2017-03-112-242/+234
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild Pull Michal's unmerged branch into the new Kbuild repository. * 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: genksyms: Regenerate parser genksyms: Fix segfault with invalid declarations
| | * genksyms: Regenerate parserMichal Marek2017-01-051-240/+234
| | | | | | | | | | | | | | | | | | | | | | | | Regenerate the parser after d920f7c6628c ("genksyms: Fix segfault with invalid declarations"). Reported-and-tested-by: Borislav Petkov <bp@alien8.de> Signed-off-by: Michal Marek <mmarek@suse.com>
| | * genksyms: Fix segfault with invalid declarationsMichal Marek2017-01-051-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Do not try to recover too early and segfault when parsing invalid declarations such as echo 'int (int);' | scripts/genksyms/genksyms echo 'int a, (int);' | scripts/genksyms/genksyms echo 'extern void *__inline_memcpy((void *), (const void *), (__kernel_size_t));' | scripts/genksyms/genksyms The last one was a real-life bug with include/asm-generic/asm-prototypes.h on x86_64. Reported-and-tested-by: Borislav Petkov <bp@alien8.de> Signed-off-by: Michal Marek <mmarek@suse.com>
* | | Merge tag 'rtc-4.12' of ↵Linus Torvalds2017-05-1028-46/+721
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux Pull RTC updates from Alexandre Belloni: "RTC subsystem update: - Add OF device ID table for i2c drivers New RTC driver: - Motorola CPCAP PMIC RTC RTC driver updates: - cmos: fix IRQ selection - ds1307: Add ST m41t0 support - ds1374: fix watchdog configuration - sh: Add rza series support" * tag 'rtc-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (33 commits) rtc: gemini: add return value validation rtc: snvs: fix an incorrect check of return value rtc: ds1374: wdt: Fix stop/start ioctl always returning -EINVAL rtc: ds1374: wdt: Fix issue with timeout scaling from secs to wdt ticks rtc: sh: mark PM functions as unused rtc: hid-sensor-time: remove some dead code rtc: m41t80: Add proper compatible for rv4162 rtc: ds1307: Add m41t0 to OF device ID table rtc: ds1307: support m41t0 variant rtc: cpcap: fix improper use of IRQ_NONE for request_threaded_irq rtc: cmos: Do not assume irq 8 for rtc when there are no legacy irqs x86: i8259: export legacy_pic symbol dt-bindings: rtc: document the rtc-sh bindings rtc: sh: add support for rza series rtc: cpcap: kfreeing devm allocated memory rtc: wm8350: Remove unused to_wm8350_from_rtc_dev rtc: cpcap: new rtc driver dt-bindings: Add vendor prefix for Motorola rtc: omap: mark PM methods as __maybe_unused rtc: omap: remove incorrect __exit markups ...
| * | | rtc: gemini: add return value validationPan Bian2017-05-051-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Function devm_ioremap() will return a NULL pointer if it fails to remap IO address, and its return value should be validated before it is used. However, in function gemini_rtc_probe(), its return value is not checked. This may result in bad memory access bugs on future access, e.g. calling the function gemini_rtc_read_time(). Signed-off-by: Pan Bian <bianpan2016@163.com> Acked-by: Hans Ulli Kroll <ulli.kroll@googlemail.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * | | rtc: snvs: fix an incorrect check of return valuePan Bian2017-05-051-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Function devm_regmap_init_mmio() returns an ERR_PTR on error. However, in function snvs_rtc_probe() its return value is checked against NULL. This patch fixes it by checking the return value with IS_ERR(). Signed-off-by: Pan Bian <bianpan2016@163.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * | | rtc: ds1374: wdt: Fix stop/start ioctl always returning -EINVALMoritz Fischer2017-05-041-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The WDIOC_SETOPTIONS case in the watchdog ioctl would alwayss falls through to the -EINVAL case. This is wrong since thew watchdog does actually get stopped or started correctly. Fixes: 920f91e50c5b ("drivers/rtc/rtc-ds1374.c: add watchdog support") Signed-off-by: Moritz Fischer <mdf@kernel.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * | | rtc: ds1374: wdt: Fix issue with timeout scaling from secs to wdt ticksMoritz Fischer2017-05-041-1/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The issue is that the internal counter that triggers the watchdog reset is actually running at 4096 Hz instead of 1Hz, therefore the value given by userland (in sec) needs to be multiplied by 4096 to get the correct behavior. Fixes: 920f91e50c5b ("drivers/rtc/rtc-ds1374.c: add watchdog support") Signed-off-by: Moritz Fischer <mdf@kernel.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * | | rtc: sh: mark PM functions as unusedArnd Bergmann2017-04-221-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The sh_rtc_set_irq_wake() function is only called from the suspend/resume handlers that may be hidden, causing a harmless warning: drivers/rtc/rtc-sh.c:724:13: error: 'sh_rtc_set_irq_wake' defined but not used [-Werror=unused-function] static void sh_rtc_set_irq_wake(struct device *dev, int enabled) The most reliable way to avoid the warning is to remove the existing #ifdef and mark the two functions as __maybe_unused so the compiler can silently drop all three when there is no reference. Fixes: dab5aec64bf5 ("rtc: sh: add support for rza series") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * | | rtc: hid-sensor-time: remove some dead codeDan Carpenter2017-04-221-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | devm_rtc_device_register() doesn't ever return NULL so there is no need to check. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * | | rtc: m41t80: Add proper compatible for rv4162Alexandre Belloni2017-04-191-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The correct compatible for the rv4162 (microcrystal,rv4162) was not used upstream and so was not added by eb235c561d04e. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * | | rtc: ds1307: Add m41t0 to OF device ID tableAlexandre Belloni2017-04-141-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | m41t0 was added to the I2C device ID table but not the OF table. Fix that. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * | | rtc: ds1307: support m41t0 variantStefan Agner2017-04-142-0/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The m41t0 variant is very similar to the already supported m41t00 variant, with the notable exception of the oscillator fail bit. The data sheet notes: If the oscillator fail (OF) bit is internally set to a '1,' this indicates that the oscillator has either stopped, or was stopped for some period of time and can be used to judge the validity of the clock and date data. The bit will get cleared with a regular write of the system time, so no changes are needed to clear it. Signed-off-by: Stefan Agner <stefan@agner.ch> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * | | rtc: cpcap: fix improper use of IRQ_NONE for request_threaded_irqTony Lindgren2017-04-141-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There's a funny typo where IRQ_NONE is used instead of IRQF_TRIGGER_NONE for request_threaded_irq(). Let's fix it before it gets copied elsewhere. Fixes: dd3bf50b35e3 ("rtc: cpcap: new rtc driver") Signed-off-by: Tony Lindgren <tony@atomide.com> Reviewed-By: Sebastian Reichel <sre@kernel.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * | | rtc: cmos: Do not assume irq 8 for rtc when there are no legacy irqsHans de Goede2017-04-141-4/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On some systems (e.g. Intel Bay Trail systems) the legacy PIC is not used, in this case virq 8 will be a random irq, rather then hw_irq 8 from the PIC. Requesting virq 8 in this case will not help us to get alarm irqs and may cause problems for other drivers which actually do need virq 8, for example on an Asus Transformer T100TA this leads to: [ 28.745155] genirq: Flags mismatch irq 8. 00000088 (mmc0) vs. 00000080 (rtc0) <snip oops> [ 28.753700] mmc0: Failed to request IRQ 8: -16 [ 28.975934] sdhci-acpi: probe of 80860F14:01 failed with error -16 This commit fixes this by making the rtc-cmos driver continue without using an irq rather then claiming irq 8 when no irq is specified in the pnp-info and there are no legacy-irqs. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * | | x86: i8259: export legacy_pic symbolHans de Goede2017-04-141-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The classic PC rtc-coms driver has a workaround for broken ACPI device nodes for it which lack an irq resource. This workaround used to unconditionally hardcode the irq to 8 in these cases. This was causing irq conflict problems on systems without a legacy-pic so a recent patch added an if (nr_legacy_irqs()) guard to the workaround to avoid this irq conflict. nr_legacy_irqs() uses the legacy_pic symbol under the hood causing an undefined symbol error if the rtc-cmos code is build as a module. This commit exports the legacy_pic symbol to fix this. Cc: rtc-linux@googlegroups.com Cc: alexandre.belloni@free-electrons.com Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * | | dt-bindings: rtc: document the rtc-sh bindingsChris Brandt2017-04-031-0/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add the binding documentation for rtc-sh which is an RTC for SuperH and RZ/A SoCs. Signed-off-by: Chris Brandt <chris.brandt@renesas.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * | | rtc: sh: add support for rza seriesChris Brandt2017-04-032-7/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This same RTC is used in RZ/A series MPUs, therefore with some slight changes, this driver can be reused. Additionally, since ARM architectures require Device Tree configurations, device tree support has been added. Signed-off-by: Chris Brandt <chris.brandt@renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * | | rtc: cpcap: kfreeing devm allocated memoryDan Carpenter2017-03-161-3/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We shouldn't kfree(rtc) because is devm_ managed memory. It leads to a double free. Fixes: dd3bf50b35e3 ("rtc: cpcap: new rtc driver") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-By: Sebastian Reichel <sre@kernel.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * | | rtc: wm8350: Remove unused to_wm8350_from_rtc_devNobuhiro Iwamatsu2017-03-161-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The to_wm8350_from_rtc_dev macro is not used by anything in the rtc-wm8350 driver. Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org> Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * | | rtc: cpcap: new rtc driverSebastian Reichel2017-03-094-0/+358
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This driver supports the Motorola CPCAP PMIC found on some of Motorola's mobile phones, such as the Droid 4. Tested-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Sebastian Reichel <sre@kernel.org> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * | | dt-bindings: Add vendor prefix for MotorolaSebastian Reichel2017-03-091-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Motorola was involved in semiconductor and mobile phone business. The "motorola," prefix is already used by a couple of bindings: * rtc/rtc-cmos.txt * mfd/motorola-cpcap.txt * regulator/cpcap-regulator.txt Apart from that it is used in the DT file for the Droid 4 mobile phone. Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Sebastian Reichel <sre@kernel.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * | | rtc: omap: mark PM methods as __maybe_unusedDmitry Torokhov2017-03-091-14/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Instead of using #ifdef guards around PM methods, let's annotate them as __maybe_unused, as it provides better compile coverage. Also drop empty stub for omap_rtc_runtime_resume(). Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * | | rtc: omap: remove incorrect __exit markupsDmitry Torokhov2017-03-091-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Even if bus is not hot-pluggable, devices can be unbound from the driver via sysfs, so we should not be using __exit annotations on remove() methods. The only exception is drivers registered with platform_driver_probe(), which specifically disables sysfs bind/unbind attributes. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Reviewed-By: Sebastian Reichel <sre@kernel.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * | | rtc: rs5c372: Add OF device ID tableJavier Martinez Canillas2017-03-091-1/+36
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The driver doesn't have a struct of_device_id table but supported devices are registered via Device Trees. This is working on the assumption that a I2C device registered via OF will always match a legacy I2C device ID and that the MODALIAS reported will always be of the form i2c:<device>. But this could change in the future so the correct approach is to have an OF device ID table if the devices are registered via OF. Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * | | rtc: m41t80: Add OF device ID tableJavier Martinez Canillas2017-03-091-2/+61
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The driver doesn't have a struct of_device_id table but supported devices are registered via Device Trees. This is working on the assumption that a I2C device registered via OF will always match a legacy I2C device ID and that the MODALIAS reported will always be of the form i2c:<device>. But this could change in the future so the correct approach is to have an OF device ID table if the devices are registered via OF. Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * | | rtc: rx8581: Add OF device ID tableJavier Martinez Canillas2017-03-091-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The driver doesn't have a struct of_device_id table but supported devices are registered via Device Trees. This is working on the assumption that a I2C device registered via OF will always match a legacy I2C device ID and that the MODALIAS reported will always be of the form i2c:<device>. But this could change in the future so the correct approach is to have an OF device ID table if the devices are registered via OF. Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| * | | rtc: s35390a: Add OF device ID tableJavier Martinez Canillas2017-03-091-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The driver doesn't have a struct of_device_id table but supported devices are registered via Device Trees. This is working on the assumption that a I2C device registered via OF will always match a legacy I2C device ID and that the MODALIAS reported will always be of the form i2c:<device>. But this could change in the future so the correct approach is to have an OF device ID table if the devices are registered via OF. Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-02 08:13:11 +0000