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Srinivas Kandagatla b01bf44c36 regmap: fix bulk writes on paged registers 
[ Upstream commit db057679de ]

On buses like SlimBus and SoundWire which does not support
gather_writes yet in regmap, A bulk write on paged register
would be silently ignored after programming page.
This is because local variable 'ret' value in regmap_raw_write_impl()
gets reset to 0 once page register is written successfully and the
code below checks for 'ret' value to be -ENOTSUPP before linearising
the write buffer to send to bus->write().

Fix this by resetting the 'ret' value to -ENOTSUPP in cases where
gather_writes() is not supported or single register write is
not possible.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-07-26 09:14:06 +02:00
..
firmware_loader firmware: improve LSM/IMA security behaviour 2019-07-21 09:03:03 +02:00
power PM / core: Propagate dev->power.wakeup_path when no callbacks 2019-05-31 06:46:23 -07:00
regmap regmap: fix bulk writes on paged registers 2019-07-26 09:14:06 +02:00
test driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
arch_topology.c Revert "base: arch_topology: fix section mismatch build warnings" 2018-03-15 14:36:20 +01:00
attribute_container.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
base.h driver core: remove unnecessary function extern declare 2018-07-16 13:32:20 +02:00
bus.c kobject: return error code if writing /sys/.../uevent fails 2019-02-12 19:47:06 +01:00
cacheinfo.c drivers: base: cacheinfo: Ensure cpu hotplug work is done before Intel RDT 2019-07-21 09:03:03 +02:00
class.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
component.c component: add debugfs support 2017-12-18 16:51:11 +01:00
container.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
core.c kobject: return error code if writing /sys/.../uevent fails 2019-02-12 19:47:06 +01:00
cpu.c x86/speculation/mds: Add sysfs reporting for MDS 2019-05-14 19:17:56 +02:00
dd.c driver core: Postpone DMA tear-down until after devres release for probe failure 2019-05-25 18:23:47 +02:00
devcon.c drivers: base: Unified device connection lookup 2018-03-22 13:10:29 +01:00
devcoredump.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
devres.c devres: Align data[] to ARCH_KMALLOC_MINALIGN 2019-02-12 19:46:56 +01:00
devtmpfs.c kernel: add ksys_unshare() helper; remove in-kernel calls to sys_unshare() 2018-04-02 20:16:06 +02:00
driver.c driver-core: return EINVAL error instead of BUG_ON() 2018-05-25 18:18:45 +02:00
firmware.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
hypervisor.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
init.c base: fix order of OF initialization 2018-07-07 17:54:29 +02:00
isa.c Merge 4.15-rc3 into driver-core-next 2017-12-11 08:50:05 +01:00
Kconfig firmware_loader: move kconfig FW_LOADER entries to its own file 2018-05-14 16:43:10 +02:00
Makefile dma-mapping: move all DMA mapping code to kernel/dma 2018-06-14 08:50:37 +02:00
map.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
memory.c memory_hotplug: fix kernel_panic on offline page processing 2018-09-04 16:45:02 -07:00
module.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
node.c mm: hide incomplete nr_indirectly_reclaimable in sysfs 2019-04-20 09:16:05 +02:00
pinctrl.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
platform-msi.c platform-msi: Free descriptors in platform_msi_domain_free() 2019-01-09 17:38:42 +01:00
platform.c Power management updates for 4.18-rc1 2018-06-05 09:38:39 -07:00
property.c device property: Get rid of union aliasing 2018-05-17 12:47:21 +02:00
soc.c base: soc: use put_device() instead of kfree() 2018-03-15 14:37:03 +01:00
syscore.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
topology.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
transport_class.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00