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* Merge git://git.infradead.org/users/eparis/auditLinus Torvalds2014-10-2043-180/+204
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull audit updates from Eric Paris: "So this change across a whole bunch of arches really solves one basic problem. We want to audit when seccomp is killing a process. seccomp hooks in before the audit syscall entry code. audit_syscall_entry took as an argument the arch of the given syscall. Since the arch is part of what makes a syscall number meaningful it's an important part of the record, but it isn't available when seccomp shoots the syscall... For most arch's we have a better way to get the arch (syscall_get_arch) So the solution was two fold: Implement syscall_get_arch() everywhere there is audit which didn't have it. Use syscall_get_arch() in the seccomp audit code. Having syscall_get_arch() everywhere meant it was a useless flag on the stack and we could get rid of it for the typical syscall entry. The other changes inside the audit system aren't grand, fixed some records that had invalid spaces. Better locking around the task comm field. Removing some dead functions and structs. Make some things static. Really minor stuff" * git://git.infradead.org/users/eparis/audit: (31 commits) audit: rename audit_log_remove_rule to disambiguate for trees audit: cull redundancy in audit_rule_change audit: WARN if audit_rule_change called illegally audit: put rule existence check in canonical order next: openrisc: Fix build audit: get comm using lock to avoid race in string printing audit: remove open_arg() function that is never used audit: correct AUDIT_GET_FEATURE return message type audit: set nlmsg_len for multicast messages. audit: use union for audit_field values since they are mutually exclusive audit: invalid op= values for rules audit: use atomic_t to simplify audit_serial() kernel/audit.c: use ARRAY_SIZE instead of sizeof/sizeof[0] audit: reduce scope of audit_log_fcaps audit: reduce scope of audit_net_id audit: arm64: Remove the audit arch argument to audit_syscall_entry arm64: audit: Add audit hook in syscall_trace_enter/exit() audit: x86: drop arch from __audit_syscall_entry() interface sparc: implement is_32bit_task sparc: properly conditionalize use of TIF_32BIT ...
| * audit: rename audit_log_remove_rule to disambiguate for treesRichard Guy Briggs2014-10-101-2/+2
| | | | | | | | | | | | | | | | Rename audit_log_remove_rule() to audit_tree_log_remove_rule() to avoid confusion with watch and mark rule removal/changes. Signed-off-by: Richard Guy Briggs <rgb@redhat.com> Signed-off-by: Eric Paris <eparis@redhat.com>
| * audit: cull redundancy in audit_rule_changeRichard Guy Briggs2014-10-101-11/+7
| | | | | | | | | | | | | | | | Re-factor audit_rule_change() to reduce the amount of code redundancy and simplify the logic. Signed-off-by: Richard Guy Briggs <rgb@redhat.com> Signed-off-by: Eric Paris <eparis@redhat.com>
| * audit: WARN if audit_rule_change called illegallyEric Paris2014-10-101-1/+2
| | | | | | | | Signed-off-by: Eric Paris <eparis@redhat.com>
| * audit: put rule existence check in canonical orderRichard Guy Briggs2014-10-101-1/+1
| | | | | | | | | | | | | | | | Use same rule existence check order as audit_make_tree(), audit_to_watch(), update_lsm_rule() for legibility. Signed-off-by: Richard Guy Briggs <rgb@redhat.com> Signed-off-by: Eric Paris <eparis@redhat.com>
| * next: openrisc: Fix buildGuenter Roeck2014-09-262-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | openrisc:defconfig fails to build in next-20140926 with the following error. In file included from arch/openrisc/kernel/signal.c:31:0: ./arch/openrisc/include/asm/syscall.h: In function 'syscall_get_arch': ./arch/openrisc/include/asm/syscall.h:77:9: error: 'EM_OPENRISC' undeclared Fix by moving EM_OPENRISC to include/uapi/linux/elf-em.h. Fixes: ce5d112827e5 ("ARCH: AUDIT: implement syscall_get_arch for all arches") Cc: Eric Paris <eparis@redhat.com> Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Eric Paris <eparis@redhat.com>
| * audit: get comm using lock to avoid race in string printingRichard Guy Briggs2014-09-232-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | When task->comm is passed directly to audit_log_untrustedstring() without getting a copy or using the task_lock, there is a race that could happen that would output a NULL (\0) in the output string that would effectively truncate the rest of the report text after the comm= field in the audit, losing fields. Use get_task_comm() to get a copy while acquiring the task_lock to prevent this and to prevent the result from being a mixture of old and new values of comm. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
| * audit: remove open_arg() function that is never usedRichard Guy Briggs2014-09-231-8/+0
| | | | | | | | | | | | | | open_arg() was added in commit 55669bfa "audit: AUDIT_PERM support" and never used. Remove it. Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
| * audit: correct AUDIT_GET_FEATURE return message typeRichard Guy Briggs2014-09-231-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | When an AUDIT_GET_FEATURE message is sent from userspace to the kernel, it should reply with a message tagged as an AUDIT_GET_FEATURE type with a struct audit_feature. The current reply is a message tagged as an AUDIT_GET type with a struct audit_feature. This appears to have been a cut-and-paste-eo in commit b0fed40. Reported-by: Steve Grubb <sgrubb@redhat.com> Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
| * audit: set nlmsg_len for multicast messages.Richard Guy Briggs2014-09-231-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Report: Looking at your example code in http://people.redhat.com/rbriggs/audit-multicast-listen/audit-multicast-listen.c, it seems that nlmsg_len field in the received messages is supposed to contain the length of the header + payload, but it is always set to the size of the header only, i.e. 16. The example program works, because the printf format specifies the minimum width, not "precision", so it simply prints out the payload until the first zero byte. This isn't too much of a problem, but precludes the use of recvmmsg, iiuc? (gdb) p *(struct nlmsghdr*)nlh $14 = {nlmsg_len = 16, nlmsg_type = 1100, nlmsg_flags = 0, nlmsg_seq = 0, nlmsg_pid = 9910} The only time nlmsg_len would have been updated was at audit_buffer_alloc() inside audit_log_start() and never updated after. It should arguably be done in audit_log_vformat(), but would be more efficient in audit_log_end(). Reported-by: Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl> Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
| * audit: use union for audit_field values since they are mutually exclusiveRichard Guy Briggs2014-09-232-14/+29
| | | | | | | | | | | | | | Since only one of val, uid, gid and lsm* are used at any given time, combine them to reduce the size of the struct audit_field. Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
| * audit: invalid op= values for rulesBurn Alting2014-09-233-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Various audit events dealing with adding, removing and updating rules result in invalid values set for the op keys which result in embedded spaces in op= values. The invalid values are op="add rule" set in kernel/auditfilter.c op="remove rule" set in kernel/auditfilter.c op="remove rule" set in kernel/audit_tree.c op="updated rules" set in kernel/audit_watch.c op="remove rule" set in kernel/audit_watch.c Replace the space in the above values with an underscore character ('_'). Coded-by: Burn Alting <burn@swtf.dyndns.org> Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
| * audit: use atomic_t to simplify audit_serial()Richard Guy Briggs2014-09-231-12/+2
| | | | | | | | | | | | | | Since there is already a primitive to do this operation in the atomic_t, use it to simplify audit_serial(). Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
| * kernel/audit.c: use ARRAY_SIZE instead of sizeof/sizeof[0]Fabian Frederick2014-09-231-1/+1
| | | | | | | | | | | | | | | | | | Use kernel.h definition. Cc: Eric Paris <eparis@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
| * audit: reduce scope of audit_log_fcapsRichard Guy Briggs2014-09-232-2/+1
| | | | | | | | | | | | audit_log_fcaps() isn't used outside kernel/audit.c. Reduce its scope. Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
| * audit: reduce scope of audit_net_idRichard Guy Briggs2014-09-231-1/+1
| | | | | | | | | | | | audit_net_id isn't used outside kernel/audit.c. Reduce its scope. Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
| * audit: arm64: Remove the audit arch argument to audit_syscall_entryEric Paris2014-09-231-2/+2
| | | | | | | | | | | | | | | | The arm64 tree added calls to audit_syscall_entry() and rightly included the syscall number. The interface has since been changed to not need the syscall number. As such, arm64 should no longer pass that value. Signed-off-by: Eric Paris <eparis@redhat.com>
| * arm64: audit: Add audit hook in syscall_trace_enter/exit()AKASHI Takahiro2014-09-231-0/+7
| | | | | | | | | | | | | | | | | | | | This patch adds auditing functions on entry to or exit from every system call invocation. Acked-by: Richard Guy Briggs <rgb@redhat.com> Acked-by Will Deacon <will.deacon@arm.com> Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
| * audit: x86: drop arch from __audit_syscall_entry() interfaceRichard Guy Briggs2014-09-235-25/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since the arch is found locally in __audit_syscall_entry(), there is no need to pass it in as a parameter. Delete it from the parameter list. x86* was the only arch to call __audit_syscall_entry() directly and did so from assembly code. Signed-off-by: Richard Guy Briggs <rgb@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: x86@kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-audit@redhat.com Signed-off-by: Eric Paris <eparis@redhat.com> --- As this patch relies on changes in the audit tree, I think it appropriate to send it through my tree rather than the x86 tree.
| * sparc: implement is_32bit_taskEric Paris2014-09-233-6/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | We are currently embedding the same check from thread_info.h into syscall.h thanks to the way syscall_get_arch() was implemented in the audit tree. Instead create a new function, is_32bit_task() which is similar to that found on the powerpc arch. This simplifies the syscall.h code and makes the build/Kconfig requirements much easier to understand. Signed-off-by: Eric Paris <eparis@redhat.com Acked-by: David S. Miller <davem@davemloft.net> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: sparclinux@vger.kernel.org
| * sparc: properly conditionalize use of TIF_32BITStephen Rothwell2014-09-231-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After merging the audit tree, today's linux-next build (sparc defconfig) failed like this: In file included from include/linux/audit.h:29:0, from mm/mmap.c:33: arch/sparc/include/asm/syscall.h: In function 'syscall_get_arch': arch/sparc/include/asm/syscall.h:131:9: error: 'TIF_32BIT' undeclared (first use in this function) arch/sparc/include/asm/syscall.h:131:9: note: each undeclared identifier is reported only once for each function it appears in And many more ... Caused by commit 374c0c054122 ("ARCH: AUDIT: implement syscall_get_arch for all arches"). This patch wraps the usage of TIF_32BIT in: if defined(__sparc__) && defined(__arch64__) Which solves the build problem. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Richard Guy Briggs <rgb@redhat.com> Signed-off-by: Eric Paris <eparis@redhat.com>
| * sparc: simplify syscall_get_arch()Eric Paris2014-09-231-8/+2
| | | | | | | | | | | | | | | | | | Include linux/thread_info.h so we can use is_32_bit_task() cleanly. Then just simplify syscall_get_arch() since is_32_bit_task() works for all configuration options. Suggested-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Eric Paris <eparis@redhat.com>
| * audit: fix build error when asm/syscall.h does not existEric Paris2014-09-231-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | avr32 does not have an asm/syscall.h file. We need the syscall_get_arch() definition from that file for all arch's which support CONFIG_AUDITSYSCALL. Obviously avr32 is not one of those arch's. Move the include inside the CONFIG_AUDITSYSCALL such that we only do the include if we need the results. When the syscall_get_arch() call is moved inside __audit_syscall_entry() this include can be dropped entirely. But that is going to require some assembly changes on x86* in a patch that is not ready for the tree... Reported-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Eric Paris <eparis@redhat.com>
| * audit: add arch field to seccomp event logRichard Guy Briggs2014-09-231-5/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The AUDIT_SECCOMP record looks something like this: type=SECCOMP msg=audit(1373478171.953:32775): auid=4325 uid=4325 gid=4325 ses=1 subj=unconfined_u:unconfined_r:unconfined_t:s0 pid=12381 comm="test" sig=31 syscall=231 compat=0 ip=0x39ea8bca89 code=0x0 In order to determine what syscall 231 maps to, we need to have the arch= field right before it. To see the event, compile this test.c program: ===== int main(void) { return seccomp_load(seccomp_init(SCMP_ACT_KILL)); } ===== gcc -g test.c -o test -lseccomp After running the program, find the record by: ausearch --start recent -m SECCOMP -i Signed-off-by: Richard Guy Briggs <rgb@redhat.com> signed-off-by: Eric Paris <eparis@redhat.com>
| * audit: __audit_syscall_entry: ignore arch arg and call syscall_get_arch() ↵Richard Guy Briggs2014-09-231-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | directly Since every arch should have syscall_get_arch() defined, stop using the function argument and just collect this ourselves. We do not drop the argument as fixing some code paths (in assembly) to not pass this first argument is non-trivial. The argument will be dropped when that is fixed. Signed-off-by: Richard Guy Briggs <rgb@redhat.com> Signed-off-by: Eric Paris <eparis@redhat.com>
| * ARCH: AUDIT: audit_syscall_entry() should not require the archEric Paris2014-09-2317-77/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We have a function where the arch can be queried, syscall_get_arch(). So rather than have every single piece of arch specific code use and/or duplicate syscall_get_arch(), just have the audit code use the syscall_get_arch() code. Based-on-patch-by: Richard Briggs <rgb@redhat.com> Signed-off-by: Eric Paris <eparis@redhat.com> Cc: linux-alpha@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-ia64@vger.kernel.org Cc: microblaze-uclinux@itee.uq.edu.au Cc: linux-mips@linux-mips.org Cc: linux@lists.openrisc.net Cc: linux-parisc@vger.kernel.org Cc: linuxppc-dev@lists.ozlabs.org Cc: linux-s390@vger.kernel.org Cc: linux-sh@vger.kernel.org Cc: sparclinux@vger.kernel.org Cc: user-mode-linux-devel@lists.sourceforge.net Cc: linux-xtensa@linux-xtensa.org Cc: x86@kernel.org
| * ARCH: AUDIT: implement syscall_get_arch for all archesEric Paris2014-09-238-1/+49
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For all arches which support audit implement syscall_get_arch() They are all pretty easy and straight forward, stolen from how the call to audit_syscall_entry() determines the arch. Based-on-patch-by: Richard Briggs <rgb@redhat.com> Signed-off-by: Eric Paris <eparis@redhat.com> Cc: linux-ia64@vger.kernel.org Cc: microblaze-uclinux@itee.uq.edu.au Cc: linux-mips@linux-mips.org Cc: linux@lists.openrisc.net Cc: linux-parisc@vger.kernel.org Cc: linuxppc-dev@lists.ozlabs.org Cc: sparclinux@vger.kernel.org
| * Alpha: define syscall_get_arch()Eric Paris2014-09-231-0/+11
| | | | | | | | | | | | | | | | | | | | Since Alpha supports syscall audit it now needs to have a syscall.h which implements syscall_get_arch() rather than hard coding this value into audit_syscall_entry(). Based-on-patch-by: Richard Briggs <rgb@redhat.com> Signed-off-by: Eric Paris <eparis@redhat.com> Cc: linux-alpha@vger.kernel.org
| * UM: implement syscall_get_arch()Eric Paris2014-09-231-0/+15
| | | | | | | | | | | | | | | | | | | | | | This patch defines syscall_get_arch() for the um platform. It adds a new syscall.h header file to define this. It copies the HOST_AUDIT_ARCH definition from ptrace.h. (that definition will be removed when we switch audit to use this new syscall_get_arch() function) Based-on-patch-by: Richard Briggs <rgb@redhat.com> Signed-off-by: Eric Paris <eparis@redhat.com> Cc: user-mode-linux-devel@lists.sourceforge.net
| * SH: define syscall_get_arch() for superhEric Paris2014-09-232-0/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch defines syscall_get_arch() for the superh platform. It does so in both syscall_32.h and syscall_64.h. I'm not certain if the implementation in syscall_64.h couldn't just be used in syscall.h as I can't really track the setting of CONFIG_64BIT... This way is safe, but we might be able to combine these if a superh person were able to review... [v2] fixed indentation stoopidity (Sergei Shtylyov) use AUDIT_ARCH_SH instead of EM_SH Based-on-patch-by: Richard Briggs <rgb@redhat.com> Signed-off-by: Eric Paris <eparis@redhat.com> Cc: linux-sh@vger.kernel.org
| * syscall.h: fix doc text for syscall_get_arch()Richard Guy Briggs2014-09-231-1/+1
| | | | | | | | | | | | | | | | syscall_get_arch() used to take a task as a argument. It now uses current. Fix the doc text. Signed-off-by: Richard Guy Briggs <rgb@redhat.com> Signed-off-by: Eric Paris <eparis@redhat.com>
| * audit: drop unused struct audit_rule definitionEric Paris2014-09-231-13/+0
| | | | | | | | | | | | | | | | The kernel only uses struct audit_rule_data. We dropped support for struct audit_rule a long time ago. Drop the definition in the header file. Signed-off-by: Eric Paris <eparis@redhat.com>
* | Merge tag 'ntb-3.18' of git://github.com/jonmason/ntbLinus Torvalds2014-10-193-123/+501
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull ntb (non-transparent bridge) updates from Jon Mason: "Add support for Haswell NTB split BARs, a debugfs entry for basic debugging info, and some code clean-ups" * tag 'ntb-3.18' of git://github.com/jonmason/ntb: ntb: Adding split BAR support for Haswell platforms ntb: use errata flag set via DID to implement workaround ntb: conslidate reading of PPD to move platform detection earlier ntb: move platform detection to separate function NTB: debugfs device entry
| * | ntb: Adding split BAR support for Haswell platformsDave Jiang2014-10-173-60/+210
| | | | | | | | | | | | | | | | | | | | | | | | | | | On the Haswell platform, a split BAR option to allow creation of 2 32bit BARs (4 and 5) from the 64bit BAR 4. Adding support for this new option. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
| * | ntb: use errata flag set via DID to implement workaroundDave Jiang2014-10-172-9/+42
| | | | | | | | | | | | | | | | | | | | | | | | | | | Instead of using a module parameter, we should detect the errata via PCI DID and then set an appropriate flag. This will be used for additional errata later on. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
| * | ntb: conslidate reading of PPD to move platform detection earlierDave Jiang2014-10-171-28/+98
| | | | | | | | | | | | | | | | | | | | | | | | To simplify some of the platform detection code. Move the platform detection to a function to be called earlier. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
| * | ntb: move platform detection to separate functionDave Jiang2014-10-171-27/+47
| | | | | | | | | | | | | | | | | | | | | | | | Move the platform detection function to separate functions to allow easier maintenence. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
| * | NTB: debugfs device entryJon Mason2014-10-173-2/+107
| | | | | | | | | | | | | | | | | | | | | Create a debugfs entry for the NTB device to log the basic device info, as well as display the error count on a number of registers. Signed-off-by: Jon Mason <jon.mason@intel.com>
* | | Merge branch 'i2c/for-next' of ↵Linus Torvalds2014-10-1919-51/+1404
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c updates from Wolfram Sang: "Highlights from the I2C subsystem for 3.18: - new drivers for Axxia AM55xx, and Hisilicon hix5hd2 SoC. - designware driver gained AMD support, exynos gained exynos7 support The rest is usual driver stuff. Hopefully no lowlights this time" * 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: i801: Add Device IDs for Intel Sunrise Point PCH i2c: hix5hd2: add i2c controller driver i2c-imx: Disable the clock on probe failure i2c: designware: Add support for AMD I2C controller i2c: designware: Rework probe() to get clock a bit later i2c: designware: Default to fast mode in case of ACPI i2c: axxia: Add I2C driver for AXM55xx i2c: exynos: add support for HSI2C module on Exynos7 i2c: mxs: detect No Slave Ack on SELECT in PIO mode i2c: cros_ec: Remove EC_I2C_FLAG_10BIT i2c: cros-ec-tunnel: Add of match table i2c: rcar: remove sign-compare flaw i2c: ismt: Use minimum descriptor size i2c: imx: Add arbitration lost check i2c: rk3x: Remove unlikely() annotations i2c: rcar: check for no IRQ in rcar_i2c_irq() i2c: rcar: make rcar_i2c_prepare_msg() *void* i2c: rcar: simplify check for last message i2c: designware: add support of platform data to set I2C mode i2c: designware: add support of I2C standard mode
| * | | i2c: i801: Add Device IDs for Intel Sunrise Point PCHjames.d.ralston@intel.com2014-10-163-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds the I2C/SMBus Device IDs for the Intel Sunrise Point PCH. Signed-off-by: James Ralston <james.d.ralston@intel.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
| * | | i2c: hix5hd2: add i2c controller driverWei Yan2014-10-164-0/+592
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I2C drivers for hix5hd2 soc series, including following chipset Hi3716CV200, Hi3719CV100, Hi3718CV100, Hi3719MV100, Hi3718MV100. Signed-off-by: Wei Yan <sledge.yanwei@huawei.com> Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org> [wsa: folded dt docs into this patch] Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
| * | | i2c-imx: Disable the clock on probe failureFabio Estevam2014-10-061-2/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | In the case of errors during probe, we should disable i2c_imx->clk. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
| * | | i2c: designware: Add support for AMD I2C controllerCarl Peng2014-10-062-0/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for AMD version of the DW I2C host controller. The device is enumerated from ACPI namespace with ACPI ID AMD0010. Because the core driver needs an input source clock, and this is not an Intel LPSS device where clocks are provided through drivers/acpi/acpi_lpss.c, we register the clock ourselves if the clock rate is given in ->driver_data Signed-off-by: Carl Peng <carlpeng008@gmail.com> Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
| * | | i2c: designware: Rework probe() to get clock a bit laterMika Westerberg2014-10-061-20/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In order to be able to create missing clock for AMD (and in future possibly others) we move getting clock for the device a bit later. Also make ACPI/DT configuration in the same place depending on from where the device was enumerated from. Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
| * | | i2c: designware: Default to fast mode in case of ACPIMika Westerberg2014-10-061-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is no way in ACPI to tell in which speed the host controller is supposed to run, so we default to fast mode (400KHz). Since this has been the default all the time there should be no functional changes with this change. This is the first step required to refactor the driver probe so that we can supply source clock from ACPI part of the driver to the core. Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
| * | | i2c: axxia: Add I2C driver for AXM55xxAnders Berg2014-10-034-0/+601
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add I2C bus driver for the controller found in the LSI Axxia family SoCs. The driver implements 10-bit addressing and SMBus transfer modes via emulation (including SMBus block data read). Signed-off-by: Anders Berg <anders.berg@avagotech.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
| * | | i2c: exynos: add support for HSI2C module on Exynos7Naveen Krishna Ch2014-10-033-7/+68
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The HSI2C module on Exynos7 differs in the transfer status bits. Transfer status bits were moved to INT_ENABLE and INT_STATUS registers This patch adds support for the HSI2C module on Exynos7. 1. Implementes a "hw" field in the variant struct to distinguish the hardware. 2. Updates the dt-new compatible in dt-binding documenation Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
| * | | i2c: mxs: detect No Slave Ack on SELECT in PIO modeJanusz Użycki2014-10-031-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | i2cdetect scanned i2c bus slow because the i2c-mxs driver ignored the NO_SLAVE_ACK bit during busy-waiting loop. Thanks to the patch, the speedup happens. Signed-off-by: Janusz Uzycki <j.uzycki@elproma.com.pl> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
| * | | i2c: cros_ec: Remove EC_I2C_FLAG_10BITDoug Anderson2014-09-302-5/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In <https://lkml.org/lkml/2014/6/10/265> pointed out that the 10-bit flag in the cros_ec_tunnel was useless. It went into a 16-bit flags field but was defined at (1 << 16). Since we have no 10-bit i2c devices on the other side of the tunnel on any known devices this was never a problem. Until we do it makes sense to remove this code. On the EC side the code to handle this flag was removed in <https://chromium-review.googlesource.com/204162>. Reported-by: Dave Jones <davej@redhat.com> Signed-off-by: Doug Anderson <dianders@chromium.org> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
| * | | i2c: cros-ec-tunnel: Add of match tableSjoerd Simons2014-09-291-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To enable the cros-ec-tunnel driver to be auto-loaded when build as a module add an of match table (and export it) to match the modalias information passed on to userspace as the Cros EC MFD driver registers the MFD subdevices with an of_compatibility string. Signed-off-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk> Reviewed-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-22 16:05:57 +0100