Pull input updates from Dmitry Torokhov:
"Just one new driver (Cypress StreetFighter touchkey), and no input
core changes this time.
Plus various fixes and enhancements to existing drivers"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (54 commits)
Input: iforce - fix control-message timeout
Input: wacom_i2c - use macros for the bit masks
Input: ili210x - reduce sample period to 15ms
Input: ili210x - improve polled sample spacing
Input: ili210x - special case ili251x sample read out
Input: elantench - fix misreporting trackpoint coordinates
Input: synaptics-rmi4 - Fix device hierarchy
Input: i8042 - Add quirk for Fujitsu Lifebook T725
Input: cap11xx - add support for cap1206
Input: remove unused header <linux/input/cy8ctmg110_pdata.h>
Input: ili210x - add ili251x firmware update support
Input: ili210x - export ili251x version details via sysfs
Input: ili210x - use resolution from ili251x firmware
Input: pm8941-pwrkey - respect reboot_mode for warm reset
reboot: export symbol 'reboot_mode'
Input: max77693-haptic - drop unneeded MODULE_ALIAS
Input: cpcap-pwrbutton - do not set input parent explicitly
Input: max8925_onkey - don't mark comment as kernel-doc
Input: ads7846 - do not attempt IRQ workaround when deferring probe
Input: ads7846 - use input_set_capability()
...
Pull gpio updates from Bartosz Golaszewski:
"We have a single new driver, new features in others and some cleanups
all over the place.
Nothing really stands out and it is all relatively small.
- new driver: gpio-modepin (plus relevant change in zynqmp firmware)
- add interrupt support to gpio-virtio
- enable the 'gpio-line-names' property in the DT bindings for
gpio-rockchip
- use the subsystem helpers where applicable in gpio-uniphier instead
of accessing IRQ structures directly
- code shrink in gpio-xilinx
- add interrupt to gpio-mlxbf2 (and include the removal of custom
interrupt code from the mellanox ethernet driver)
- support multiple interrupts per bank in gpio-tegra186 (and force
one interrupt per bank in older models)
- fix GPIO line IRQ offset calculation in gpio-realtek-otto
- drop unneeded MODULE_ALIAS expansions in multiple drivers
- code cleanup in gpio-aggregator
- minor improvements in gpio-max730x and gpio-mc33880
- Kconfig cleanups"
* tag 'gpio-updates-for-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
virtio_gpio: drop packed attribute
gpio: virtio: Add IRQ support
gpio: realtek-otto: fix GPIO line IRQ offset
gpio: clean up Kconfig file
net: mellanox: mlxbf_gige: Replace non-standard interrupt handling
gpio: mlxbf2: Introduce IRQ support
gpio: mc33880: Drop if with an always false condition
gpio: max730x: Make __max730x_remove() return void
gpio: aggregator: Wrap access to gpiochip_fwd.tmp[]
gpio: modepin: Add driver support for modepin GPIO controller
dt-bindings: gpio: zynqmp: Add binding documentation for modepin
firmware: zynqmp: Add MMIO read and write support for PS_MODE pin
gpio: tps65218: drop unneeded MODULE_ALIAS
gpio: max77620: drop unneeded MODULE_ALIAS
gpio: xilinx: simplify getting .driver_data
gpio: tegra186: Support multiple interrupts per bank
gpio: tegra186: Force one interrupt per bank
gpio: uniphier: Use helper functions to get private data from IRQ data
gpio: uniphier: Use helper function to get IRQ hardware number
dt-bindings: gpio: add gpio-line-names to rockchip,gpio-bank.yaml
Currently we have a global spi_add_lock which we take when adding new
devices so that we can check that we're not trying to reuse a chip
select that's already controlled. This means that if the SPI device is
itself a SPI controller and triggers the instantiation of further SPI
devices we trigger a deadlock as we try to register and instantiate
those devices while in the process of doing so for the parent controller
and hence already holding the global spi_add_lock. Since we only care
about concurrency within a single SPI bus move the lock to be per
controller, avoiding the deadlock.
This can be easily triggered in the case of spi-mux.
Reported-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
An spi or i2c remove callback is only called for devices that probed
successfully. In this case this implies that __max730x_probe() set a
non-NULL driver data. So the check ts == NULL is never true. With this
check dropped, __max730x_remove() returns zero unconditionally. Make it
return void instead which makes it easier to see in the callers that
there is no error to handle.
Also the return value of i2c and spi remove callbacks is ignored anyway.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Pull gpio updates from Bartosz Golaszewski:
"We mostly have various improvements and refactoring all over the place
but also some interesting new features - like the virtio GPIO driver
that allows guest VMs to use host's GPIOs. We also have a new/old GPIO
driver for rockchip - this one has been split out of the pinctrl
driver.
Summary:
- new driver: gpio-virtio allowing a guest VM running linux to access
GPIO lines provided by the host
- split the GPIO driver out of the rockchip pin control driver
- add support for a new model to gpio-aspeed-sgpio, refactor the
driver and use generic device property interfaces, improve property
sanitization
- add ACPI support to gpio-tegra186
- improve the code setting the line names to support multiple GPIO
banks per device
- constify a bunch of OF functions in the core GPIO code and make the
declaration for one of the core OF functions we use consistent
within its header
- use software nodes in intel_quark_i2c_gpio
- add support for the gpio-line-names property in gpio-mt7621
- use the standard GPIO function for setting the GPIO names in
gpio-brcmstb
- fix a bunch of leaks and other bugs in gpio-mpc8xxx
- use generic pm callbacks in gpio-ml-ioh
- improve resource management and PM handling in gpio-mlxbf2
- modernize and improve the gpio-dwapb driver
- coding style improvements in gpio-rcar
- documentation fixes and improvements
- update the MAINTAINERS entry for gpio-zynq
- minor tweaks in several drivers"
* tag 'gpio-updates-for-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (35 commits)
gpio: mpc8xxx: Use 'devm_gpiochip_add_data()' to simplify the code and avoid a leak
gpio: mpc8xxx: Fix a potential double iounmap call in 'mpc8xxx_probe()'
gpio: mpc8xxx: Fix a resources leak in the error handling path of 'mpc8xxx_probe()'
gpio: viperboard: remove platform_set_drvdata() call in probe
gpio: virtio: Add missing mailings lists in MAINTAINERS entry
gpio: virtio: Fix sparse warnings
gpio: remove the obsolete MX35 3DS BOARD MC9S08DZ60 GPIO functions
gpio: max730x: Use the right include
gpio: Add virtio-gpio driver
gpio: mlxbf2: Use DEFINE_RES_MEM_NAMED() helper macro
gpio: mlxbf2: Use devm_platform_ioremap_resource()
gpio: mlxbf2: Drop wrong use of ACPI_PTR()
gpio: mlxbf2: Convert to device PM ops
gpio: dwapb: Get rid of legacy platform data
mfd: intel_quark_i2c_gpio: Convert GPIO to use software nodes
gpio: dwapb: Read GPIO base from gpio-base property
gpio: dwapb: Unify ACPI enumeration checks in get_irq() and configure_irqs()
gpiolib: Deduplicate forward declaration in the consumer.h header
MAINTAINERS: update gpio-zynq.yaml reference
gpio: tegra186: Add ACPI support
...
<linux/spi/max7301.h> despite the placement of the header, is
used by drivers/gpio/gpio-max730*.
The include needs struct gpio_chip and needs to include
<linux/gpio/driver.h> not the legacy <linux/gpio.h> include.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
This patch modified set_cs_timing parameter, no need pass in spi_delay
to set_cs_timing callback.
By the way, we modified the mediatek and tegra114 spi driver to fix build err.
In mediatek spi driver, We have support set absolute time not clk_count,
and call this function in prepare_message not user's API.
Signed-off-by: Mason Zhang <Mason.Zhang@mediatek.com>
Link: https://lore.kernel.org/r/20210804133746.6742-1-Mason.Zhang@mediatek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Patrice Chotard <patrice.chotard@foss.st.com>:
From: Patrice Chotard <patrice.chotard@foss.st.com>
This series adds support for the spi_mem_poll_status() spinand
interface.
Some QSPI controllers allows to poll automatically memory
status during operations (erase, read or write). This allows to
offload the CPU for this task.
STM32 QSPI is supporting this feature, driver update are also
part of this series.
Changes in v5:
- Update spi_mem_read_status() description.
- Update poll_status() description API by indicating that data buffer is
filled with last status value.
- Update timeout parameter by timeout_ms in spi_mem_poll_status() prototype.
- Remove parenthesys arount -EINVAL in spi_mem_poll_status().
- Add missing spi_mem_supports_op() call in stm32_qspi_poll_status().
- Add Boris Reviewed-by for patch 1 and 2.
Changes in v4:
- Remove init_completion() from spi_mem_probe() added in v2.
- Add missing static for spi_mem_read_status().
- Check if operation in spi_mem_poll_status() is a READ.
- Update patch 2 commit message.
- Add comment which explains how delays has been calculated.
- Rename SPINAND_STATUS_TIMEOUT_MS to SPINAND_WAITRDY_TIMEOUT_MS.
Chnages in v3:
- Add spi_mem_read_status() which allows to read 8 or 16 bits status.
- Add initial_delay_us and polling_delay_us parameters to spi_mem_poll_status().
and also to poll_status() callback.
- Move spi_mem_supports_op() in SW-based polling case.
- Add delay before invoquing read_poll_timeout().
- Remove the reinit/wait_for_completion() added in v2.
- Add initial_delay_us and polling_delay_us parameters to spinand_wait().
- Add SPINAND_READ/WRITE/ERASE/RESET_INITIAL_DELAY_US and
SPINAND_READ/WRITE/ERASE/RESET_POLL_DELAY_US defines.
- Remove spi_mem_finalize_op() API added in v2.
Changes in v2:
- Indicates the spi_mem_poll_status() timeout unit
- Use 2-byte wide status register
- Add spi_mem_supports_op() call in spi_mem_poll_status()
- Add completion management in spi_mem_poll_status()
- Add offload/non-offload case management in spi_mem_poll_status()
- Optimize the non-offload case by using read_poll_timeout()
- mask and match stm32_qspi_poll_status()'s parameters are 2-byte wide
- Make usage of new spi_mem_finalize_op() API in
stm32_qspi_wait_poll_status()
Patrice Chotard (3):
spi: spi-mem: add automatic poll status functions
mtd: spinand: use the spi-mem poll status APIs
spi: stm32-qspi: add automatic poll status feature
drivers/mtd/nand/spi/core.c | 45 +++++++++++++------
drivers/spi/spi-mem.c | 86 ++++++++++++++++++++++++++++++++++++
drivers/spi/spi-stm32-qspi.c | 86 ++++++++++++++++++++++++++++++++----
include/linux/mtd/spinand.h | 22 +++++++++
include/linux/spi/spi-mem.h | 16 +++++++
5 files changed, 234 insertions(+), 21 deletions(-)
base-commit: 6efb943b86
--
2.17.1
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.orghttp://lists.infradead.org/mailman/listinfo/linux-arm-kernel
With STM32 QSPI, it is possible to poll the status register of the device.
This could be done to offload the CPU during an operation (erase or
program a SPI NAND for example).
spi_mem_poll_status API has been added to handle this feature.
This new function take care of the offload/non-offload cases.
For the non-offload case, use read_poll_timeout() to poll the status in
order to release CPU during this phase.
For example, previously, when erasing large area, in non-offload case,
CPU load can reach ~50%, now it decrease to ~35%.
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Signed-off-by: Christophe Kerello <christophe.kerello@foss.st.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://lore.kernel.org/r/20210518162754.15940-2-patrice.chotard@foss.st.com
Signed-off-by: Mark Brown <broonie@kernel.org>
While fixing undefined behaviour the commit f60d7270c8 ("spi: Avoid
undefined behaviour when counting unused native CSs") missed the case
when all CSs are GPIOs and thus unused_native_cs will be evaluated to
-1 in unsigned representation. This will falsely trigger a condition
in the spi_get_gpio_descs().
Switch to signed types for *_native_cs SPI controller fields to fix above.
Fixes: f60d7270c8 ("spi: Avoid undefined behaviour when counting unused native CSs")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20210510131242.49455-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Jakub Kicinski
Andy Shevchenko
Linus Torvalds
Mark Brown
Uwe Kleine-König
Daniel Mack
Linus Walleij
Mason Zhang
Randy Dunlap
Vinod Koul
Sebastian Reichel
Greg Kroah-Hartman
Patrice Chotard