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2016-03-14leds: wm831x-status: Use devm_led_classdev_registerAmitoj Kaur Chawla
Switch to resource-managed function devm_led_classdev_register instead of led_classdev_register and remove unneeded led_classdev_unregister. Also, remove platform_set_drvdata from probe function and the remove function, wm831x_status_remove as it is now has nothing to do. The Coccinelle semantic patch used to make this change is as follows: //<smpl> @platform@ identifier p, probefn, removefn; @@ struct platform_driver p = { .probe = probefn, .remove = removefn, }; @prb@ identifier platform.probefn, pdev; expression e; @@ probefn(struct platform_device *pdev, ...) { ... e = - led_classdev_register + devm_led_classdev_register (...); ... ?- led_classdev_unregister(...); ... } @remove depends on prb@ identifier platform.removefn; @@ removefn(...) { ... ?- led_classdev_unregister(...); ... } //</smpl> Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2016-03-14leds: lp8788: Use devm_led_classdev_registerAmitoj Kaur Chawla
Switch to resource-managed function devm_led_classdev_register instead of led_classdev_register and remove unneeded led_classdev_unregister. Also, remove platform_set_drvdata in probe function and the remove function, lp8788_led_remove as it is now has nothing to do. The Coccinelle semantic patch used to make this change is as follows: //<smpl> @platform@ identifier p, probefn, removefn; @@ struct platform_driver p = { .probe = probefn, .remove = removefn, }; @prb@ identifier platform.probefn, pdev; expression e; @@ probefn(struct platform_device *pdev, ...) { ... e = - led_classdev_register + devm_led_classdev_register (...); ... ?- led_classdev_unregister(...); ... } @remove depends on prb@ identifier platform.removefn; @@ removefn(...) { ... ?- led_classdev_unregister(...); ... } //</smpl> Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2016-03-14leds: 88pm860x: Use devm_led_classdev_registerAmitoj Kaur Chawla
Switch to resource-managed function devm_led_classdev_register instead of led_classdev_register and remove unneeded led_classdev_unregister. Also, remove platform_set_drvdata in probe function and the remove function, pm860x_led_remove as it is now has nothing to do. The Coccinelle semantic patch used to make this change is as follows: //<smpl> @platform@ identifier p, probefn, removefn; @@ struct platform_driver p = { .probe = probefn, .remove = removefn, }; @prb@ identifier platform.probefn, pdev; expression e; @@ probefn(struct platform_device *pdev, ...) { ... e = - led_classdev_register + devm_led_classdev_register (...); ... ?- led_classdev_unregister(...); ... } @remove depends on prb@ identifier platform.removefn; @@ removefn(...) { ... ?- led_classdev_unregister(...); ... } //</smpl> Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2016-03-14leds: Add SN3218 and SN3216 support to the IS31FL32XX driverDavid Rivshin
Si-En Technology was acquired by ISSI in 2011, and it appears that the IS31FL3218/IS31FL3216 are just rebranded SN3218/SN3216 devices. Add the "si-en,sn3218" and "si-en,sn3216" compatible strings into the IS31FL32XX driver as aliases for the issi equivalents, and update binding documentation. Datasheets: IS31FL3218: http://www.issi.com/WW/pdf/31FL3218.pdf SN3218: http://www.si-en.com/uploadpdf/s2011517171720.pdf IS31FL3216: http://www.issi.com/WW/pdf/31FL3216.pdf SN3216: http://www.si-en.com/uploadpdf/SN3216201152410148.pdf Signed-off-by: David Rivshin <drivshin@allworx.com> Acked-by: Rob Herring <robh@kernel.org> Tested-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2016-03-14of: Add vendor prefix for Si-En TechnologyStefan Wahren
Si-En Technology is a fabless design house which offers audio amplifiers, LED drivers and sensors. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2016-03-14leds: Add driver for the ISSI IS31FL32xx family of LED controllersDavid Rivshin
The IS31FL32xx family of LED controllers are I2C devices with multiple constant-current channels, each with independent 256-level PWM control. Datasheets: http://www.issi.com/US/product-analog-fxled-driver.shtml This has been tested on the IS31FL3236 and IS31FL3216, on an ARM (TI am335x) platform. The programming paradigm of these devices is similar in the following ways: - All registers are 8 bit - All LED control registers are write-only - Each LED channel has a PWM register (0-255) - PWM register writes are shadowed until an Update register is poked - All have a concept of Software Shutdown, which disables output However, there are some differences in devices: - 3236/3235 have a separate Control register for each LED, (3218/3216 pack the enable bits into fewer registers) - 3236/3235 have a per-channel current divisor setting - 3236/3235 have a Global Control register that can turn off all LEDs - 3216 is unique in a number of ways - OUT9-OUT16 can be configured as GPIOs instead of LED controls - LEDs can be programmed with an 8-frame animation, with programmable delay between frames - LEDs can be modulated by an input audio signal - Max output current can be adjusted from 1/4 to 2x globally - Has a Configuration register instead of a Shutdown register This driver currently only supports the base PWM control function of these devices. The following features of these devices are not implemented, although it should be possible to add them in the future: - All devices are capable of going into a lower-power "software shutdown" mode. - The is31fl3236 and is31fl3235 can reduce the max output current per-channel with a divisor of 1, 2, 3, or 4. - The is31fl3216 can use some LED channels as GPIOs instead. - The is31fl3216 can animate LEDs in hardware. - The is31fl3216 can modulate LEDs according to an audio input. - The is31fl3216 can reduce/increase max output current globally. Signed-off-by: David Rivshin <drivshin@allworx.com> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2016-03-14DT: leds: Add binding for the ISSI IS31FL32xx family of LED controllersDavid Rivshin
This adds a binding description for the is31fl3236/35/18/16 I2C LED controllers. Signed-off-by: David Rivshin <drivshin@allworx.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2016-03-14DT: Add vendor prefix for Integrated Silicon Solutions Inc.David Rivshin
ISSI is the stock ticker Integrated Silicon Solutions Inc. Company website: http://www.issi.com Signed-off-by: David Rivshin <drivshin@allworx.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2016-03-14leds: lm3533: Use devm_led_classdev_registerAmitoj Kaur Chawla
Switch to resource-managed function devm_led_classdev_register instead of led_classdev_register and remove unneeded led_classdev_unregister. To be compatible with this change, remove an unnecessary label by replacing it with direct return statement. The Coccinelle semantic patch used to make this change is as follows: //<smpl> @platform@ identifier p, probefn, removefn; @@ struct platform_driver p = { .probe = probefn, .remove = removefn, }; @prb@ identifier platform.probefn, pdev; expression e; @@ probefn(struct platform_device *pdev, ...) { ... e = - led_classdev_register + devm_led_classdev_register (...); ... ?- led_classdev_unregister(...); ... } @remove depends on prb@ identifier platform.removefn; @@ removefn(...) { ... ?- led_classdev_unregister(...); ... } //</smpl> Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2016-03-14leds: gpio: Use GPIOF_OUT_INIT_LOW instead of hardcoded zeroGeert Uytterhoeven
Use the GPIO flag definition instead of a numeric literal, so the casual reader grepping for GPIOF_ will find the GPIO flags used. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2016-03-14leds: core: add helpers for calling brightness_set(_blocking)Heiner Kallweit
Add helpers for calling brightness_set(_blocking) allowing to simplify the code and make it better readable. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2016-03-14leds: leds-gpio: Fix return value check in create_gpio_led()Wei Yongjun
In case of error, the function gpio_to_desc() returns NULL pointer not ERR_PTR(). The IS_ERR() test in the return value check should be replaced with NULL test. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2016-03-14leds: lp3944: improve wording and formatting in a commentAntonio Ospite
Improve the wording for the comment about the led status, and while at it also use the standard formatting for multi-line comments. Signed-off-by: Antonio Ospite <ao2@ao2.it> Cc: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2016-03-14leds: core: avoid error message when a USB LED device is unpluggedHeiner Kallweit
When a USB LED device is unplugged the remove call chain calls led_classdev_unregister which tries to switch the LED off. As the device has been removed already this results in a ENODEV error message in dmesg. Avoid this error message by ignoring ENODEV in calls from led_classdev_unregister if the LED device is flagged as pluggable. Therefore a new flag LED_HW_PLUGGABLE was introduced which should be set by all LED drivers handling pluggable LED devices (mainly USB LED devices). Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2016-03-14leds: core: fix misleading comment after workqueue removal from driversHeiner Kallweit
Now that workqueues have been removed from individual drivers and were replaced with a core-internal workqueue we shouldn't encourage people to add new workqueues to drivers. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2016-03-14Merge tag 'irqchip-core-4.6-3' of ↵Thomas Gleixner
git://git.infradead.org/users/jcooper/linux into irq/core Pull irqchip core changes from Jason Cooper: - mvebu: Update dt binding docs for new odmi driver
2016-03-14ALSA: hda - Fixes double fault in nvhdmi_chmap_cea_alloc_validate_get_typeSubhransu S. Prusty
nvhdmi_chmap_cea_alloc_validate_get_type calls itself recursively using chmap ops causing the double fault. Fixed by adding the default validate_get_type handling inside nvdia validate_get_type handler. Link: https://bugzilla.kernel.org/show_bug.cgi?id=114311 Fixes: 67b90cb ("ALSA: hda - Create common chmap object") Reported-by: Andreas Reis <andreas.reis@gmail.com> Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com> Tested-by: Andreas Reis <andreas.reis@gmail.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-03-14ALSA: intel8x0: Add clock quirk entry for AD1981B on IBM ThinkPad X41.Vittorio Gambaletta (VittGam)
The clock measurement on the AC'97 audio card found in the IBM ThinkPad X41 will often fail, so add a quirk entry to fix it. Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=441087 Cc: <stable@vger.kernel.org> Signed-off-by: Vittorio Gambaletta <linuxbugs@vittgam.net> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-03-14ALSA: hda - Add new GPU codec ID 0x10de0082 to snd-hdaAaron Plattner
Vendor ID 0x10de0082 is used by a yet-to-be-named GPU chip. This chip also has the 2-ch audio swapping bug, so patch_nvhdmi is appropriate here. Signed-off-by: Aaron Plattner <aplattner@nvidia.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-03-14Merge branch 'for-linus' into for-nextTakashi Iwai
2016-03-14Merge branch 'topic/xilinx' into for-linusVinod Koul
2016-03-14Merge branch 'topic/sh' into for-linusVinod Koul
2016-03-14Merge branch 'topic/qcom' into for-linusVinod Koul
2016-03-14Merge branch 'topic/pl330' into for-linusVinod Koul
2016-03-14Merge branch 'topic/omap' into for-linusVinod Koul
2016-03-14Merge branch 'topic/ioatdma' into for-linusVinod Koul
2016-03-14Merge branch 'topic/idma' into for-linusVinod Koul
2016-03-14Merge branch 'topic/edma' into for-linusVinod Koul
2016-03-14Merge branch 'topic/core' into for-linusVinod Koul
2016-03-13Linux 4.5v4.5Linus Torvalds
2016-03-14dcache.c: new helper: __d_add()Al Viro
d_add() with inode->i_lock already held; common to d_add() and d_splice_alias(). All ->lookup() instances that end up hashing the dentry they are given will hash it here. This almost completes the preparations to parallel lookups proper - the only remaining bit is taking security_d_instantiate() past d_rehash() and doing rehashing without dropping ->d_lock. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-03-14don't bother with __d_instantiate(dentry, NULL)Al Viro
it's a no-op - bumping ->d_seq is pointless there. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-03-14untangle fsnotify_d_instantiate() a bitAl Viro
First of all, don't bother calling it if inode is NULL - that makes inode argument unused. Moreover, do it *before* dropping ->d_lock, not right after that (and don't bother grabbing ->d_lock in it, of course). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-03-14uninline d_add()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-03-14replace d_add_unique() with saner primitiveAl Viro
new primitive: d_exact_alias(dentry, inode). If there is an unhashed dentry with the same name/parent and given inode, rehash, grab and return it. Otherwise, return NULL. The only caller of d_add_unique() switched to d_exact_alias() + d_splice_alias(). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-03-14quota: use lookup_one_len_unlocked()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-03-14cifs_get_root(): use lookup_one_len_unlocked()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-03-14nfs_lookup: don't bother with d_instantiate(dentry, NULL)Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-03-14kill dentry_unhash()Al Viro
the last user is gone Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-03-14ceph_fill_trace(): don't bother with d_instantiate(dn, NULL)Al Viro
... and use d_add(dn, NULL) in case we need to hash a negative unhashed rather than using d_rehash() directly. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-03-14autofs4: don't bother with d_instantiate(dentry, NULL) in ->lookup()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-03-14configfs: move d_rehash() into configfs_create() for regular filesAl Viro
... and turn it into d_add in there Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-03-14ceph: don't bother with d_rehash() in splice_dentry()Al Viro
d_splice_alias() guarantees that it'll be always hashed Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-03-14namei: teach lookup_slow() to skip revalidateAl Viro
... and make mountpoint_last() use it. That makes all candidates for lookup with parent locked shared go through lookup_slow(). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-03-14namei: massage lookup_slow() to be usable by lookup_one_len_unlocked()Al Viro
Return dentry and don't pass nameidata or path; lift crossing mountpoints into the caller. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-03-14lookup_one_len_unlocked(): use lookup_dcache()Al Viro
No need to lock parent just because of ->d_revalidate() on child; contrary to the stale comment, lookup_dcache() *can* be used without locking the parent. Result can be moved as soon as we return, of course, but the same is true for lookup_one_len_unlocked() itself. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-03-14namei: simplify invalidation logics in lookup_dcache()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-03-14namei: change calling conventions for lookup_{fast,slow} and follow_managed()Al Viro
Have lookup_fast() return 1 on success and 0 on "need to fall back"; lookup_slow() and follow_managed() return positive (1) on success. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-03-14namei: untanlge lookup_fast()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-03-13Merge branch 'ipv4-ipv6-csums'David S. Miller
Alexander Duyck says: ==================== Fix differences between IPv4 and IPv6 TCP/UDP checksum calculation This patch series is meant to address the differences that exist between IPv4 and IPv6 in terms of checksum calculation. Specifically the IPv6 function csum_ipv6_magic treated length as a value that could be greater than 64K, while csum_tcpudp_magic was truncating the length at 16 bits. After looking over the code and giving it some thought I decided it would be best to update the IPv4 function so that it worked the same way the IPv6 one did. This allows us to get the same results given the same inputs for both functions. As a result we can use the same processes to reverse the calculation in the event we need to do something like remove the length of the pseudo-header checksum. I also took the opportunity to standardize things so that the parameters for these functions all use the correct types. IPv4 addresses are __be32, length should always be __u32, and protocol is a __u8. With this change in place it corrects an issue with UDP tunnels in which we were getting a checksum that was off by 1 when performing fragmentation on inner UDP packets. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
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