08 Feb, 2020
1 commit
-
Pull i2c updates from Wolfram Sang:
"i2c core:- huge improvements and refactorizations of the Linux I2C
documentation (lots of thanks to Luca for doing it and Jean for the
careful review)- subsystem wide API conversion to i2c_new_client_device()
- remove obsolete parport-light driver
- smaller core updates (removal of 'extern', enabling more compile
testing, use more helper macros)- and quite a bunch of driver updates (new IDs, simplifications,
better PM, support of atomic transfers and other improvements)i2c-mux:
- The main feature is the idle-state rework of the pca954x driver
from Biwen Liat24 driver:
- minor maintenance: update the license tag, sort headers
- move support for the write-protect pin into nvmem core
- add a reference to the new wp-gpios property in nvmem to at25
bindings- add support for regulator and pm_runtime control"
* 'i2c/for-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (91 commits)
i2c: cros-ec-tunnel: Fix ACPI identifier
i2c: cros-ec-tunnel: Fix slave device enumeration
i2c: stm32f7: add PM_SLEEP suspend/resume support
i2c: cadence: Fix wording in i2c-cadence driver
i2c: cadence: Fix power management order of operations
i2c: cadence: Fix error printing in case of defer
i2c: cadence: Handle transfer_size rollover
i2c: i801: Add support for Intel Comet Lake PCH-V
docs: i2c: writing-clients: properly name the stop condition
docs: i2c: i2c-protocol: use same wording as smbus-protocol
docs: i2c: rename sections so the overall picture is clearer
docs: i2c: old-module-parameters: use monospace instead of ""
docs: i2c: old-module-parameters: clarify this is for obsolete kernels
docs: i2c: old-module-parameters: fix internal hyperlink
docs: i2c: instantiating-devices: use monospace for sysfs attributes
docs: i2c: instantiating-devices: rearrange static instatiation
docs: i2c: instantiating-devices: fix internal hyperlink
docs: i2c: smbus-protocol: improve I2C Block transactions description
docs: i2c: smbus-protocol: fix punctuation
docs: i2c: smbus-protocol: fix typo
...
17 Jan, 2020
1 commit
-
QTI SDAM driver allows PMIC peripherals to access the shared memory
that is available on QTI PMICs.Use subsys_initcall as PMIC SDAM NV memory is accessed by multiple PMIC
drivers (charger, fuel gauge) to store/restore data across reboots
required during their initialization.Signed-off-by: Anirudh Ghayal
Signed-off-by: Shyam Kumar Thella
Signed-off-by: Srinivas Kandagatla
Link: https://lore.kernel.org/r/20200116161100.30637-4-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman
10 Jan, 2020
5 commits
-
nvmem_cell_info_to_nvmem_cell implementation has static
allocation of name. nvmem_add_cells_from_of() call may
return error and kfree name results in memory abort. Use
kstrdup_const() and kfree_const calls for name alloc and free.Unable to handle kernel paging request at virtual address ffffffffffe44888
Mem abort info:
ESR = 0x96000006
EC = 0x25: DABT (current EL), IL = 32 bits
SET = 0, FnV = 0
EA = 0, S1PTW = 0
Data abort info:
ISV = 0, ISS = 0x00000006
CM = 0, WnR = 0
swapper pgtable: 64k pages, 48-bit VAs, pgdp=00000000815d0000
[ffffffffffe44888] pgd=0000000081d30803, pud=0000000081d30803,
pmd=0000000000000000
Internal error: Oops: 96000006 [#1] PREEMPT SMP
Modules linked in:
CPU: 2 PID: 43 Comm: kworker/2:1 Tainted
Hardware name: quill (DT)
Workqueue: events deferred_probe_work_func
pstate: a0000005 (NzCv daif -PAN -UAO)
pc : kfree+0x38/0x278
lr : nvmem_cell_drop+0x68/0x80
sp : ffff80001284f9d0
x29: ffff80001284f9d0 x28: ffff0001f677e830
x27: ffff800011b0b000 x26: ffff0001c36e1008
x25: ffff8000112ad000 x24: ffff8000112c9000
x23: ffffffffffffffea x22: ffff800010adc7f0
x21: ffffffffffe44880 x20: ffff800011b0b068
x19: ffff80001122d380 x18: ffffffffffffffff
x17: 00000000d5cb4756 x16: 0000000070b193b8
x15: ffff8000119538c8 x14: 0720072007200720
x13: 07200720076e0772 x12: 07750762072d0765
x11: 0773077507660765 x10: 072f073007300730
x9 : 0730073207380733 x8 : 0000000000000151
x7 : 07660765072f0720 x6 : ffff0001c00e0f00
x5 : 0000000000000000 x4 : ffff0001c0b43800
x3 : ffff800011b0b068 x2 : 0000000000000000
x1 : 0000000000000000 x0 : ffffffdfffe00000
Call trace:
kfree+0x38/0x278
nvmem_cell_drop+0x68/0x80
nvmem_device_remove_all_cells+0x2c/0x50
nvmem_register.part.9+0x520/0x628
devm_nvmem_register+0x48/0xa0
tegra_fuse_probe+0x140/0x1f0
platform_drv_probe+0x50/0xa0
really_probe+0x108/0x348
driver_probe_device+0x58/0x100
__device_attach_driver+0x90/0xb0
bus_for_each_drv+0x64/0xc8
__device_attach+0xd8/0x138
device_initial_probe+0x10/0x18
bus_probe_device+0x90/0x98
deferred_probe_work_func+0x74/0xb0
process_one_work+0x1e0/0x358
worker_thread+0x208/0x488
kthread+0x118/0x120
ret_from_fork+0x10/0x18
Code: d350feb5 f2dffbe0 aa1e03f6 8b151815 (f94006a0)
---[ end trace 49b1303c6b83198e ]---Fixes: badcdff107cbf ("nvmem: Convert to using %pOFn instead of device_node.name")
Signed-off-by: Bitan Biswas
Cc: stable
Signed-off-by: Srinivas Kandagatla
Link: https://lore.kernel.org/r/20200109104017.6249-5-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman -
Introduce ocotp_ctrl_reg to include the low 16bits mask of CTRL
register.i.MX chips will have different layout of the low 16bits of CTRL
register, so use ocotp_ctrl_reg will make it clean to add new
chip support.Signed-off-by: Peng Fan
Signed-off-by: Srinivas Kandagatla
Link: https://lore.kernel.org/r/20200109104017.6249-4-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman -
i.MX8 fuse word row index represented as one 4-bytes word.
Exp:
- MAC0 address layout in fuse:
offset 708: MAC[3] MAC[2] MAC[1] MAC[0]
offset 709: XX xx MAC[5] MAC[4]The original code takes row index * 4 as the offset, this
not exactly match i.MX8 fuse map documentation.So update code the reflect the truth.
Signed-off-by: Peng Fan
Reviewed-by: Fugang Duan
Signed-off-by: Srinivas Kandagatla
Link: https://lore.kernel.org/r/20200109104017.6249-3-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman -
SIP number 0xC200000A is for reading, 0xC200000B is for writing.
And the following two args for write are word index, data to write.Fixes: 885ce72a09d0 ("nvmem: imx: scu: support write")
Signed-off-by: Peng Fan
Signed-off-by: Srinivas Kandagatla
Cc: stable
Link: https://lore.kernel.org/r/20200109104017.6249-2-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman -
nvmem_register() returns a pointer, not a long int. Use ERR_CAST() to
cast the struct gpio_desc pointer to struct nvmem_device.Reported-by: kbuild test robot
Fixes: 2a127da461a9 ("nvmem: add support for the write-protect pin")
Signed-off-by: Bartosz Golaszewski
Acked-by: Srinivas Kandagatla
09 Jan, 2020
1 commit
-
The write-protect pin handling looks like a standard property that
could benefit other users if available in the core nvmem framework.Instead of modifying all the memory drivers to check this pin, make
the NVMEM subsystem check if the write-protect GPIO being passed
through the nvmem_config or defined in the device tree and pull it
low whenever writing to the memory.There was a suggestion for introducing the gpiodesc from pdata, but
as pdata is already removed it could be replaced by adding it to
nvmem_config.Reference: https://lists.96boards.org/pipermail/dev/2018-August/001056.html
Signed-off-by: Khouloud Touil
Reviewed-by: Linus Walleij
Acked-by: Srinivas Kandagatla
Signed-off-by: Bartosz Golaszewski
06 Dec, 2019
1 commit
-
Pull ARM SoC driver updates from Olof Johansson:
"Various driver updates for platforms:- A larger set of work on Tegra 2/3 around memory controller and
regulator features, some fuse cleanups, etc..- MMP platform drivers, in particular for USB PHY, and other smaller
additions.- Samsung Exynos 5422 driver for DMC (dynamic memory configuration),
and ASV (adaptive voltage), allowing the platform to run at more
optimal operating points.- Misc refactorings and support for RZ/G2N and R8A774B1 from Renesas
- Clock/reset control driver for TI/OMAP
- Meson-A1 reset controller support
- Qualcomm sdm845 and sda845 SoC IDs for socinfo"
* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (150 commits)
firmware: arm_scmi: Fix doorbell ring logic for !CONFIG_64BIT
soc: fsl: add RCPM driver
dt-bindings: fsl: rcpm: Add 'little-endian' and update Chassis definition
memory: tegra: Consolidate registers definition into common header
memory: tegra: Ensure timing control debug features are disabled
memory: tegra: Introduce Tegra30 EMC driver
memory: tegra: Do not handle error from wait_for_completion_timeout()
memory: tegra: Increase handshake timeout on Tegra20
memory: tegra: Print a brief info message about EMC timings
memory: tegra: Pre-configure debug register on Tegra20
memory: tegra: Include io.h instead of iopoll.h
memory: tegra: Adapt for Tegra20 clock driver changes
memory: tegra: Don't set EMC rate to maximum on probe for Tegra20
memory: tegra: Add gr2d and gr3d to DRM IOMMU group
memory: tegra: Set DMA mask based on supported address bits
soc: at91: Add Atmel SFR SN (Serial Number) support
memory: atmel-ebi: switch to SPDX license identifiers
memory: atmel-ebi: move NUM_CS definition inside EBI driver
soc: mediatek: Refactor bus protection control
soc: mediatek: Refactor sram control
...
28 Nov, 2019
1 commit
-
Pull char/misc driver updates from Greg KH:
"Here is the big set of char/misc and other driver patches for 5.5-rc1Loads of different things in here, this feels like the catch-all of
driver subsystems these days. Full details are in the shortlog, but
nothing major overall, just lots of driver updates and additions.All of these have been in linux-next for a while with no reported
issues"* tag 'char-misc-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (198 commits)
char: Fix Kconfig indentation, continued
habanalabs: add more protection of device during reset
habanalabs: flush EQ workers in hard reset
habanalabs: make the reset code more consistent
habanalabs: expose reset counters via existing INFO IOCTL
habanalabs: make code more concise
habanalabs: use defines for F/W files
habanalabs: remove prints on successful device initialization
habanalabs: remove unnecessary checks
habanalabs: invalidate MMU cache only once
habanalabs: skip VA block list update in reset flow
habanalabs: optimize MMU unmap
habanalabs: prevent read/write from/to the device during hard reset
habanalabs: split MMU properties to PCI/DRAM
habanalabs: re-factor MMU masks and documentation
habanalabs: type specific MMU cache invalidation
habanalabs: re-factor memory module code
habanalabs: export uapi defines to user-space
habanalabs: don't print error when queues are full
habanalabs: increase max jobs number to 512
...
06 Nov, 2019
7 commits
-
Newer Rockchip socs like the px30 use a different one-time-programmable
memory controller for things like cpu-id and leakage information,
so add the necessary driver for it.Signed-off-by: Finley Xiao
[ported from vendor 4.4, converted to clock-bulk API and cleanups]
Signed-off-by: Heiko Stuebner
Signed-off-by: Srinivas Kandagatla
Link: https://lore.kernel.org/r/20191029114240.14905-11-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman -
Fix below error by adding HAVE_ARM_SMCCC dependency in Kconfig
ERROR: "__arm_smccc_smc" [drivers/nvmem/nvmem-imx-ocotp-scu.ko] undefined!Reported-by: kbuild test robot
Signed-off-by: Srinivas Kandagatla
Link: https://lore.kernel.org/r/20191029114240.14905-9-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman -
The Spreadtrum eFuse controller is widely used to dump chip ID,
configuration setting, function select and so on, as well as
supporting one-time programming.Signed-off-by: Freeman Liu
Signed-off-by: Baolin Wang
Signed-off-by: Srinivas Kandagatla
Link: https://lore.kernel.org/r/20191029114240.14905-8-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman -
If software running before the OCOTP driver is loaded left the
controller with the error status pending, the driver will never
be able to complete the read timing setup. Reset the error status
on probe to make sure the controller is in usable state.Signed-off-by: Lucas Stach
Signed-off-by: Srinivas Kandagatla
Link: https://lore.kernel.org/r/20191029114240.14905-6-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman -
The fuse programming from non-secure world is blocked, so we could
only use Arm Trusted Firmware SIP call to let ATF program fuse.Because there is ECC region that could only be programmed once,
so add a heler in_ecc to check the ecc region.Signed-off-by: Peng Fan
Signed-off-by: Srinivas Kandagatla
Link: https://lore.kernel.org/r/20191029114240.14905-5-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman -
Introduce HOLE/ECC_REGION flag and in_hole helper to ease the check
of hole region. The ECC_REGION is also introduced here which is
preparing for programming support. ECC_REGION could only be programmed
once, so need take care.Signed-off-by: Peng Fan
Signed-off-by: Srinivas Kandagatla
Link: https://lore.kernel.org/r/20191029114240.14905-4-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman -
Change to use devm_hwspin_lock_request_specific() to help to simplify the
cleanup code for drivers requesting one hwlock. Thus we can remove the
redundant sc27xx_efuse_remove() and platform_set_drvdata().Signed-off-by: Baolin Wang
Signed-off-by: Srinivas Kandagatla
Link: https://lore.kernel.org/r/20191029114240.14905-3-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman
08 Oct, 2019
1 commit
-
nvmem_device_find provides a way to search for nvmem devices with
the help of a match function simlair to bus_find_device.Reviewed-by: Srinivas Kandagatla
Acked-by: Srinivas Kandagatla
Signed-off-by: Thomas Bogendoerfer
Signed-off-by: Paul Burton
Cc: Jonathan Corbet
Cc: Ralf Baechle
Cc: James Hogan
Cc: Lee Jones
Cc: David S. Miller
Cc: Alessandro Zummo
Cc: Alexandre Belloni
Cc: Greg Kroah-Hartman
Cc: Jiri Slaby
Cc: linux-doc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: linux-rtc@vger.kernel.org
Cc: linux-serial@vger.kernel.org
03 Oct, 2019
1 commit
-
The secure monitor driver is currently a frankenstein driver which is
registered as a platform driver but its functionality goes through a
global struct accessed by the consumer drivers using exported helper
functions.Try to tidy up the driver moving the firmware struct into the driver
data and make the consumer drivers referencing the secure-monitor using
a new property in the DT.Currently only the nvmem driver is using this API so we can fix it in
the same commit.Reviewed-by: Jerome Brunet
Signed-off-by: Carlo Caione
Signed-off-by: Kevin Hilman
19 Sep, 2019
1 commit
-
Pull char/misc driver updates from Greg KH:
"Here is the big char/misc driver pull request for 5.4-rc1.As has been happening in previous releases, more and more individual
driver subsystem trees are ending up in here. Now if that is good or
bad I can't tell, but hopefully it makes your life easier as it's more
of an aggregation of trees together to one merge point for you.Anyway, lots of stuff in here:
- habanalabs driver updates
- thunderbolt driver updates
- misc driver updates
- coresight and intel_th hwtracing driver updates
- fpga driver updates
- extcon driver updates
- some dma driver updates
- char driver updates
- android binder driver updates
- nvmem driver updates
- phy driver updates
- parport driver fixes
- pcmcia driver fix
- uio driver updates
- w1 driver updates
- configfs fixes
- other assorted driver updatesAll of these have been in linux-next for a long time with no reported
issues"* tag 'char-misc-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (200 commits)
misc: mic: Use PTR_ERR_OR_ZERO rather than its implementation
habanalabs: correctly cast variable to __le32
habanalabs: show correct id in error print
habanalabs: stop using the acronym KMD
habanalabs: display card name as sensors header
habanalabs: add uapi to retrieve aggregate H/W events
habanalabs: add uapi to retrieve device utilization
habanalabs: Make the Coresight timestamp perpetual
habanalabs: explicitly set the queue-id enumerated numbers
habanalabs: print to kernel log when reset is finished
habanalabs: replace __le32_to_cpu with le32_to_cpu
habanalabs: replace __cpu_to_le32/64 with cpu_to_le32/64
habanalabs: Handle HW_IP_INFO if device disabled or in reset
habanalabs: Expose devices after initialization is done
habanalabs: improve security in Debug IOCTL
habanalabs: use default structure for user input in Debug IOCTL
habanalabs: Add descriptive name to PSOC app status register
habanalabs: Add descriptive names to PSOC scratch-pad registers
habanalabs: create two char devices per ASIC
habanalabs: change device_setup_cdev() to be more generic
...
18 Sep, 2019
1 commit
-
…anaszewski/linux-leds
Pull LED updates from Jacek Anaszewski:
"In this cycle we've finally managed to contribute the patch set
sorting out LED naming issues. Besides that there are many changes
scattered among various LED class drivers and triggers.LED naming related improvements:
- add new 'function' and 'color' fwnode properties and deprecate
'label' property which has been frequently abused for conveying
vendor specific names that have been available in sysfs anyway- introduce a set of standard LED_FUNCTION* definitions
- introduce a set of standard LED_COLOR_ID* definitions
- add a new {devm_}led_classdev_register_ext() API with the
capability of automatic LED name composition basing on the
properties available in the passed fwnode; the function is
backwards compatible in a sense that it uses 'label' data, if
present in the fwnode, for creating LED name- add tools/leds/get_led_device_info.sh script for retrieving LED
vendor, product and bus names, if applicable; it also performs
basic validation of an LED name- update following drivers and their DT bindings to use the new LED
registration API:- leds-an30259a, leds-gpio, leds-as3645a, leds-aat1290, leds-cr0014114,
leds-lm3601x, leds-lm3692x, leds-lp8860, leds-lt3593, leds-sc27xx-bltOther LED class improvements:
- replace {devm_}led_classdev_register() macros with inlines
- allow to call led_classdev_unregister() unconditionally
- switch to use fwnode instead of be stuck with OF one
LED triggers improvements:
- led-triggers:
- fix dereferencing of null pointer
- fix a memory leak bug- ledtrig-gpio:
- GPIO 0 is validDrop superseeded apu2/3 support from leds-apu since for apu2+ a newer,
more complete driver exists, based on a generic driver for the AMD
SOCs gpio-controller, supporting LEDs as well other devices:- drop profile field from priv data
- drop iosize field from priv data
- drop enum_apu_led_platform_types
- drop superseeded apu2/3 led support
- add pr_fmt prefix for better log output
- fix error message on probing failure
Other misc fixes and improvements to existing LED class drivers:
- leds-ns2, leds-max77650:
- add of_node_put() before return- leds-pwm, leds-is31fl32xx:
- use struct_size() helper- leds-lm3697, leds-lm36274, leds-lm3532:
- switch to use fwnode_property_count_uXX()- leds-lm3532:
- fix brightness control for i2c mode
- change the define for the fs current register
- fixes for the driver for stability
- add full scale current configuration
- dt: Add property for full scale current.
- avoid potentially unpaired regulator calls
- move static keyword to the front of declarations
- fix optional led-max-microamp prop error handling- leds-max77650:
- add of_node_put() before return
- add MODULE_ALIAS()
- Switch to fwnode property API- leds-as3645a:
- fix misuse of strlcpy- leds-netxbig:
- add of_node_put() in netxbig_leds_get_of_pdata()
- remove legacy board-file support- leds-is31fl319x:
- simplify getting the adapter of a client- leds-ti-lmu-common:
- fix coccinelle issue
- move static keyword to the front of declaration- leds-syscon:
- use resource managed variant of device register- leds-ktd2692:
- fix a typo in the name of a constant- leds-lp5562:
- allow firmware files up to the maximum length- leds-an30259a:
- fix typo- leds-pca953x:
- include the right header"* tag 'leds-for-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds: (72 commits)
leds: lm3532: Fix optional led-max-microamp prop error handling
led: triggers: Fix dereferencing of null pointer
leds: ti-lmu-common: Move static keyword to the front of declaration
leds: lm3532: Move static keyword to the front of declarations
leds: trigger: gpio: GPIO 0 is valid
leds: pwm: Use struct_size() helper
leds: is31fl32xx: Use struct_size() helper
leds: ti-lmu-common: Fix coccinelle issue in TI LMU
leds: lm3532: Avoid potentially unpaired regulator calls
leds: syscon: Use resource managed variant of device register
leds: Replace {devm_}led_classdev_register() macros with inlines
leds: Allow to call led_classdev_unregister() unconditionally
leds: lm3532: Add full scale current configuration
dt: lm3532: Add property for full scale current.
leds: lm3532: Fixes for the driver for stability
leds: lm3532: Change the define for the fs current register
leds: lm3532: Fix brightness control for i2c mode
leds: Switch to use fwnode instead of be stuck with OF one
leds: max77650: Switch to fwnode property API
led: triggers: Fix a memory leak bug
...
18 Aug, 2019
5 commits
-
i.MX8QM efuse table has some difference with i.MX8QXP platform,
so add i.MX8QM platform support.Signed-off-by: Fugang Duan
Signed-off-by: Srinivas Kandagatla
Link: https://lore.kernel.org/r/20190818093345.29647-8-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman -
The email address listed in MODULE_AUTHOR() will be disabled in the
near future. Replace it with my private one.Signed-off-by: Stefan Wahren
Signed-off-by: Srinivas Kandagatla
Link: https://lore.kernel.org/r/20190818093345.29647-6-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman -
Some Amlogic boards store the Ethernet MAC address inside the eFuse. The
Ethernet MAC address uses 6 bytes. The existing logic in
meson_mx_efuse_read() would write beyond the end of the data buffer when
trying to read data with a size that is not aligned to word_size (4
bytes on Meson8, Meson8b and Meson8m2).Calculate the remaining data to copy inside meson_mx_efuse_read() so
reading 6 bytes doesn't write beyond the end of the data buffer.Signed-off-by: Martin Blumenstingl
Reviewed-by: Neil Armstrong
Signed-off-by: Srinivas Kandagatla
Link: https://lore.kernel.org/r/20190818093345.29647-5-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman -
Like in H3, A64 SID controller doesn't return correct data
when using direct access. It appears that on A64, SID needs
8 bytes of word_size.Workaround is to enable read by registers.
Signed-off-by: Stefan Mavrodiev
Acked-by: Chen-Yu Tsai
Tested-by: Vasily Khoruzhick
Signed-off-by: Srinivas Kandagatla
Link: https://lore.kernel.org/r/20190818093345.29647-4-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman -
i.MX8MN is a new SoC of i.MX8M series, it is similar to i.MX8MM
in terms of addressing and clock setup, add support for its fuse
read/write.Signed-off-by: Anson Huang
Signed-off-by: Srinivas Kandagatla
Link: https://lore.kernel.org/r/20190818093345.29647-3-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman
31 Jul, 2019
1 commit
-
The compatibility "eeprom" attribute is currently root-only no
matter what the configuration says. The "nvmem" attribute does
respect the setting of the root_only configuration bit, so do the
same for "eeprom".Signed-off-by: Jean Delvare
Fixes: b6c217ab9be6 ("nvmem: Add backwards compatibility support for older EEPROM drivers.")
Reviewed-by: Bartosz Golaszewski
Cc: Andrew Lunn
Cc: Srinivas Kandagatla
Cc: Arnd Bergmann
Link: https://lore.kernel.org/r/20190728184255.563332e6@endymion
Signed-off-by: Greg Kroah-Hartman
30 Jul, 2019
1 commit
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Introduce wrappers for {bus/driver/class}_find_device() to
locate devices by its of_node.Cc: Maarten Lankhorst
Cc: Maxime Ripard
Cc: dri-devel@lists.freedesktop.org
Cc: David Airlie
Cc: Daniel Vetter
Cc: devicetree@vger.kernel.org
Cc: Florian Fainelli
Cc: Frank Rowand
Cc: Heiko Stuebner
Cc: Liam Girdwood
Cc: linux-i2c@vger.kernel.org
Cc: linux-rockchip@lists.infradead.org
Cc: linux-spi@vger.kernel.org
Cc: Mathieu Poirier
Cc: Rob Herring
Cc: Srinivas Kandagatla
Cc: Takashi Iwai
Cc: Alan Tull
Cc: linux-fpga@vger.kernel.org
Cc: Peter Rosin
Cc: Florian Fainelli
Cc: Heiner Kallweit
Cc: "David S. Miller"
Cc: Andrew Lunn
Cc: Liam Girdwood
Cc: "Rafael J. Wysocki"
Cc: Thor Thayer
Cc: Jiri Slaby
Cc: Andrew Lunn
Cc: Peter Rosin
Signed-off-by: Suzuki K Poulose
Acked-by: Lee Jones
Acked-by: Wolfram Sang # I2C part
Acked-by: Moritz Fischer # For FPGA part
Acked-by: Mark Brown
Link: https://lore.kernel.org/r/20190723221838.12024-3-suzuki.poulose@arm.com
Signed-off-by: Greg Kroah-Hartman
13 Jul, 2019
1 commit
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Pull driver core and debugfs updates from Greg KH:
"Here is the "big" driver core and debugfs changes for 5.3-rc1It's a lot of different patches, all across the tree due to some api
changes and lots of debugfs cleanups.Other than the debugfs cleanups, in this set of changes we have:
- bus iteration function cleanups
- scripts/get_abi.pl tool to display and parse Documentation/ABI
entries in a simple way- cleanups to Documenatation/ABI/ entries to make them parse easier
due to typos and other minor things- default_attrs use for some ktype users
- driver model documentation file conversions to .rst
- compressed firmware file loading
- deferred probe fixes
All of these have been in linux-next for a while, with a bunch of
merge issues that Stephen has been patient with me for"* tag 'driver-core-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (102 commits)
debugfs: make error message a bit more verbose
orangefs: fix build warning from debugfs cleanup patch
ubifs: fix build warning after debugfs cleanup patch
driver: core: Allow subsystems to continue deferring probe
drivers: base: cacheinfo: Ensure cpu hotplug work is done before Intel RDT
arch_topology: Remove error messages on out-of-memory conditions
lib: notifier-error-inject: no need to check return value of debugfs_create functions
swiotlb: no need to check return value of debugfs_create functions
ceph: no need to check return value of debugfs_create functions
sunrpc: no need to check return value of debugfs_create functions
ubifs: no need to check return value of debugfs_create functions
orangefs: no need to check return value of debugfs_create functions
nfsd: no need to check return value of debugfs_create functions
lib: 842: no need to check return value of debugfs_create functions
debugfs: provide pr_fmt() macro
debugfs: log errors when something goes wrong
drivers: s390/cio: Fix compilation warning about const qualifiers
drivers: Add generic helper to match by of_node
driver_find_device: Unify the match function with class_find_device()
bus_find_device: Unify the match callback with class_find_device
...
26 Jun, 2019
5 commits
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According to NXP Reference Manuals and uboot/atf sources the OCOTP block
on imx8m behaves more like imx6 than imx7.- Fuses can be read/written 32bits at a time (no imx7-like banking)
- The OCOTP_HW_OCOTP_TIMING register is like imx6 not imx7Since nvmem doesn't support uboot-style "sense" and "override" this
issue only affected "write" which is very rarely used.Fixes: 163c0dbd0cb1 ("nvmem: imx-ocotp: add support for imx8mq")
Signed-off-by: Leonard Crestez
Reviewed-by: Peng Fan
Signed-off-by: Srinivas Kandagatla
Signed-off-by: Greg Kroah-Hartman -
This patch adds support to burn the fuses on the i.MX8MM.
https://www.nxp.com/webapp/Download?colCode=IMX8MMRMThe i.MX8MM is similar to i.MX6 processors in terms of addressing and clock
setup.The documentation specifies 60 discreet OTP registers but, the fusemap
address space encompasses up to 256 registers. We map the entire putative
256 OTP registers.Signed-off-by: Bryan O'Donoghue
Signed-off-by: Srinivas Kandagatla
Signed-off-by: Greg Kroah-Hartman -
The RELAX field of the OCOTP block is turning out as a zero on i.MX8MM.
This messes up the subsequent re-load of the fuse shadow registers.After some discussion with people @ NXP its clear we have missed a trick
here in Linux.The OCOTP fuse programming time has a physical minimum 'burn time' that is
not related to the ipg_clk.We need to define the RELAX, STROBE_READ and STROBE_PROG fields in terms of
desired timings to allow for the burn-in to safely complete. Right now only
the RELAX field is calculated in terms of an absolute time and we are
ending up with a value of zero.This patch inherits the u-boot timings for the OCOTP_TIMING calculation on
the i.MX6 and i.MX8. Those timings are known to work and critically specify
values such as STROBE_PROG as a minimum timing.Fixes: 0642bac7da42 ("nvmem: imx-ocotp: add write support")
Signed-off-by: Bryan O'Donoghue
Suggested-by: Leonard Crestez
Reviewed-by: Leonard Crestez
Signed-off-by: Srinivas Kandagatla
Signed-off-by: Greg Kroah-Hartman -
The i.MX6 and i.MX8 both have a bit-field spanning bits 27:22 called the
WAIT field.The WAIT field according to the documentation for both parts "specifies
time interval between auto read and write access in one time program. It is
given in number of ipg_clk periods."This patch ensures that the relevant field is read and written back to the
timing register.Fixes: 0642bac7da42 ("nvmem: imx-ocotp: add write support")
Signed-off-by: Bryan O'Donoghue
Reviewed-by: Leonard Crestez
Signed-off-by: Srinivas Kandagatla
Signed-off-by: Greg Kroah-Hartman -
i.MX6 defines OCOTP_CTRLn:ADDR as seven bit address-field with a one bit
RSVD0 field, i.MX7 defines OCOTP_CTRLn:ADDR as a four bit address-field
with a four bit RSVD0 field.i.MX8 defines the OCOTP_CTRLn:ADDR bit-field as a full range eight bits.
i.MX6 and i.MX7 should return zero for their respective RSVD0 bits and
ignore a write-back of zero where i.MX8 will make use of the full range.This patch expands the bit-field definition for all users to eight bits,
which is safe due to RSVD0 being a no-op for the i.MX6 and i.MX7.Signed-off-by: Bryan O'Donoghue
Reviewed-by: Leonard Crestez
Signed-off-by: Srinivas Kandagatla
Signed-off-by: Greg Kroah-Hartman
24 Jun, 2019
1 commit
-
There is an arbitrary difference between the prototypes of
bus_find_device() and class_find_device() preventing their callers
from passing the same pair of data and match() arguments to both of
them, which is the const qualifier used in the prototype of
class_find_device(). If that qualifier is also used in the
bus_find_device() prototype, it will be possible to pass the same
match() callback function to both bus_find_device() and
class_find_device(), which will allow some optimizations to be made in
order to avoid code duplication going forward. Also with that, constify
the "data" parameter as it is passed as a const to the match function.For this reason, change the prototype of bus_find_device() to match
the prototype of class_find_device() and adjust its callers to use the
const qualifier in accordance with the new prototype of it.Cc: Alexander Shishkin
Cc: Andrew Lunn
Cc: Andreas Noever
Cc: Arnd Bergmann
Cc: Bjorn Helgaas
Cc: Corey Minyard
Cc: Christian Borntraeger
Cc: David Kershner
Cc: "David S. Miller"
Cc: David Airlie
Cc: Felipe Balbi
Cc: Frank Rowand
Cc: Grygorii Strashko
Cc: Harald Freudenberger
Cc: Hartmut Knaack
Cc: Heiko Stuebner
Cc: Jason Gunthorpe
Cc: Jonathan Cameron
Cc: "James E.J. Bottomley"
Cc: Len Brown
Cc: Mark Brown
Cc: Michael Ellerman
Cc: Michael Jamet
Cc: "Martin K. Petersen"
Cc: Peter Oberparleiter
Cc: Sebastian Ott
Cc: Srinivas Kandagatla
Cc: Yehezkel Bernat
Cc: rafael@kernel.org
Acked-by: Corey Minyard
Acked-by: David Kershner
Acked-by: Mark Brown
Acked-by: Rafael J. Wysocki
Acked-by: Srinivas Kandagatla
Acked-by: Wolfram Sang # for the I2C parts
Acked-by: Rob Herring
Signed-off-by: Suzuki K Poulose
Signed-off-by: Greg Kroah-Hartman
23 Jun, 2019
1 commit
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We need the char-misc fixes in here as well.
Signed-off-by: Greg Kroah-Hartman
20 Jun, 2019
2 commits
-
The SNVS LPGR IP block is also found on other i.MX SoCs that
are not covered by the current SOC_IMX6 || SOC_IMX7D logic.One example is the i.MX7ULP.
To avoid keep expanding the SoC logic selection, make it broader
by using the more generic ARCH_MXC symbol instead.Signed-off-by: Fabio Estevam
Signed-off-by: Srinivas Kandagatla
Signed-off-by: Greg Kroah-Hartman -
This patch adds i.MX8 nvmem ocotp driver to access fuse via
RPC to i.MX8 system controller.Cc: Srinivas Kandagatla
Cc: Shawn Guo
Cc: Sascha Hauer
Cc: Pengutronix Kernel Team
Cc: Fabio Estevam
Cc: NXP Linux Team
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Peng Fan
Reviewed-by: Dong Aisheng
Signed-off-by: Srinivas Kandagatla
Signed-off-by: Greg Kroah-Hartman
19 Jun, 2019
2 commits
-
Based on 2 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundationthis program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation #extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 4122 file(s).
Signed-off-by: Thomas Gleixner
Reviewed-by: Enrico Weigelt
Reviewed-by: Kate Stewart
Reviewed-by: Allison Randal
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
Signed-off-by: Greg Kroah-Hartman -
Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation http www opensource org
licenses gpl license html http www gnu org copyleft gpl htmlextracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 3 file(s).
Signed-off-by: Thomas Gleixner
Reviewed-by: Enrico Weigelt
Reviewed-by: Allison Randal
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081201.897982733@linutronix.de
Signed-off-by: Greg Kroah-Hartman
