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linux-sg2042/drivers
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Jon Hunter 1f50ad2c86 i2c: tegra: Add runtime power-management support 
Update the Tegra I2C driver to use runtime PM and move the code in the
tegra_i2c_clock_enable/disable() functions to the PM runtime resume and
suspend callbacks, respectively.

Note that given that CONFIG_PM is not mandatory for Tegra, if CONFIG_PM
is not enabled and so runtime PM is not enabled, ensure that the I2C
clocks are turned on during probe and kept on by calling the resume
callback directly.

In the function tegra_i2c_init(), the variable 'err' does not need to be
initialised to zero in tegra_i2c_init() because it is initialised when
pm_runtime_get_sync() is called. Furthermore, to ensure we only return 0
from tegra_i2c_init(), it is necessary to re-initialise 'err' to 0 after
a successful call to pm_runtime_get_sync() because it can return a
positive value on success. However, alternatively re-initialise 'err' by
using the return value of the function tegra_i2c_flush_fifos() because
it can only be 0 or -ETIMEDOUT.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
 		2016-08-30 22:00:40 +02:00
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accessibility
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acpi libnvdimm, nd_blk: mask off reserved status bits 2016-08-08 09:26:13 -07:00
amba
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android
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ata New LED class driver: 2016-07-27 14:03:52 -07:00
atm drivers: atm: nicstar: Use the correct function to free some resources 2016-07-19 11:30:26 -07:00
auxdisplay
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base More power management updates for v4.8-rc1 2016-08-05 23:26:16 -04:00
bcma wireless-drivers-next patches for 4.8 2016-07-25 11:09:19 -07:00
block virtio/vhost: fixes and cleanups for 4.8 2016-08-11 14:10:23 -07:00
bluetooth Bluetooth: btmrvl: reset is_suspending flag in failure path 2016-07-18 10:13:02 +02:00
bus ARM: SoC driver updates for v4.8 2016-08-01 18:36:01 -04:00
cdrom
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char RTC for 4.8 2016-08-05 09:48:22 -04:00
clk treewide: replace obsolete _refok by __ref 2016-08-02 17:31:41 -04:00
clocksource clocksource/drivers/mips-gic-timer: Make gic_clocksource_of_init() return int 2016-08-17 13:08:32 +02:00
connector
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cpufreq Merge branches 'pm-sleep' and 'pm-cpufreq' 2016-08-12 22:53:58 +02:00
cpuidle powerpc updates for 4.8 # 1 2016-07-30 21:01:36 -07:00
crypto crypto: caam - fix non-hmac hashes 2016-08-09 18:25:11 +08:00
dax
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dca
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devfreq
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dio
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dma dmaengine updates for 4.8-rc1 2016-07-28 15:45:17 -07:00
dma-buf dma-buf: Release module reference on creation failure 2016-07-18 14:10:49 +02:00
edac EDAC, skx_edac: Add EDAC driver for Skylake 2016-08-21 10:58:34 -07:00
eisa
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extcon
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firewire
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firmware efi/capsule: Allocate whole capsule into virtual memory 2016-08-11 13:55:36 +02:00
fmc
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fpga drivers/fpga/Kconfig: fix build failure 2016-08-04 08:50:07 -04:00
gpio This is the bulk of GPIO changes for the v4.8 kernel cycle. 2016-07-26 19:16:01 -07:00
gpu Merge tag 'drm-fixes-for-4.8-rc3-2' of git://people.freedesktop.org/~airlied/linux 2016-08-18 19:38:18 -07:00
hid Merge branch 'for-4.8/hid-led' into for-linus 2016-07-28 10:49:23 +02:00
hsi
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hv
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hwmon hwmon: (it87) Features mask must be 32 bit wide 2016-08-11 18:35:47 -07:00
hwspinlock
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hwtracing Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-07-29 13:55:30 -07:00
i2c i2c: tegra: Add runtime power-management support 2016-08-30 22:00:40 +02:00
ide Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide 2016-07-29 13:29:06 -07:00
idle Merge branch 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-07-30 12:56:26 -07:00
iio Third set of IIO new device support, features and cleanups for the 4.8 cycle. 2016-07-14 12:05:29 +09:00
infiniband Second round of merge items for 4.8 2016-08-04 20:26:31 -04:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2016-08-05 23:24:15 -04:00
iommu iommu/dma: Respect IOMMU aperture when allocating 2016-08-10 12:02:02 +02:00
ipack
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irqchip tree-wide: replace config_enabled() with IS_ENABLED() 2016-08-04 08:50:07 -04:00
isdn
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leds powerpc updates for 4.8 # 1 2016-07-30 21:01:36 -07:00
lguest
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lightnvm block: get rid of bio_rw and READA 2016-07-20 17:37:01 -06:00
macintosh powerpc updates for 4.8 # 1 2016-07-30 21:01:36 -07:00
mailbox mailbox: Fix format and type mismatches in Broadcom PDC driver 2016-07-28 21:27:31 +05:30
mcb
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md dm raid: support raid0 with missing metadata devices 2016-08-17 10:42:39 -04:00
media media updates for v4.8-rc1 2016-08-04 09:59:37 -04:00
memory MTD updates for v4.8: 2016-08-02 17:05:11 -04:00
memstick memstick: don't allocate unused major for ms_block 2016-08-02 17:31:41 -04:00
message
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mfd ARM: SoC driver updates for v4.8 2016-08-01 18:36:01 -04:00
misc eeprom: at24: check if the chip is functional in probe() 2016-08-22 08:19:58 +02:00
mmc MMC core: 2016-07-31 21:36:58 -04:00
mtd This pull request contains mostly cleanups and minor 2016-08-04 19:51:49 -04:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-08-17 17:26:58 -07:00
nfc NFC 4.8 pull request 2016-07-20 23:39:36 -07:00
ntb NTB: ntb_hw_intel: use local variable pdev 2016-08-05 10:34:13 -04:00
nubus
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nvdimm nvdimm, btt: add a size attribute for BTTs 2016-08-08 09:26:14 -07:00
nvme nvme: Suspend all queues before deletion 2016-08-11 09:35:57 -06:00
nvmem
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of of: fix reference counting in of_graph_get_endpoint_by_regs 2016-08-15 11:15:05 -05:00
oprofile
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parisc dma-mapping: use unsigned long for dma_attrs 2016-08-04 08:50:07 -04:00
parport
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pci genirq/msi: Make sure PCI MSIs are activated early 2016-08-09 09:19:32 +02:00
pcmcia
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perf drivers/perf: arm-pmu: Fix handling of SPI lacking "interrupt-affinity" property 2016-08-09 17:57:39 +01:00
phy MMC core: 2016-07-31 21:36:58 -04:00
pinctrl pinctrl: intel: merrifield: Add missed header 2016-08-10 15:46:28 +02:00
platform dell-wmi: Ignore WMI event 0xe00e 2016-08-08 11:00:21 -07:00
pnp PNP: pnpbios: add header file to fix build errors 2016-07-27 18:52:54 +02:00
power power_supply: tps65217-charger: fix missing platform_set_drvdata() 2016-08-15 23:10:44 +02:00
powercap
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pps pps: do not crash when failed to register 2016-07-23 10:25:54 +09:00
ps3
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ptp
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pwm pwm: Changes for v4.8-rc1 2016-08-06 00:01:33 -04:00
rapidio rapidio: dereferencing an error pointer 2016-08-10 16:40:56 -07:00
ras
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regulator pwm: Changes for v4.8-rc1 2016-08-06 00:01:33 -04:00
remoteproc dma-mapping: use unsigned long for dma_attrs 2016-08-04 08:50:07 -04:00
reset
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rpmsg
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rtc RTC for 4.8 2016-08-05 09:48:22 -04:00
s390 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2016-08-16 15:50:22 -07:00
sbus
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scsi Merge remote-tracking branch 'mkp-scsi/4.8/scsi-fixes' into fixes 2016-08-12 16:01:20 -07:00
sfi
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sh
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sn
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soc ARM: SoC driver updates for v4.8 2016-08-01 18:36:01 -04:00
spi ARM: DT updates for v4.8 2016-08-01 18:37:45 -04:00
spmi
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ssb
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staging Merge branch 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-08-07 10:01:14 -04:00
target target: iblock_execute_sync_cache() should use bio_set_op_attrs() 2016-08-07 14:41:02 -06:00
tc
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thermal Merge branches 'thermal-intel' and 'thermal-core' into next 2016-08-08 10:59:35 +08:00
thunderbolt
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tty tree-wide: replace config_enabled() with IS_ENABLED() 2016-08-04 08:50:07 -04:00
uio
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usb xhci: don't dereference a xhci member after removing xhci 2016-08-16 09:42:47 +02:00
uwb
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vfio vfio/pci: Fix NULL pointer oops in error interrupt setup handling 2016-08-08 16:16:23 -06:00
vhost vhost/test: fix after swiotlb changes 2016-08-15 05:05:51 +03:00
video dma-mapping: use unsigned long for dma_attrs 2016-08-04 08:50:07 -04:00
virt
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virtio virtio: fix error handling for debug builds 2016-08-09 13:42:35 +03:00
vlynq
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vme
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w1 w1:omap_hdq: fix regression 2016-08-02 19:35:40 -04:00
watchdog watchdog: gpio_wdt: Fix missing platform_set_drvdata() in gpio_wdt_probe() 2016-07-27 10:47:43 +02:00
xen dma-mapping: use unsigned long for dma_attrs 2016-08-04 08:50:07 -04:00
zorro
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Kconfig
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Makefile virtio/vhost: new features for 4.8 2016-08-06 09:20:13 -04:00