linux.git/drivers/pinctrl, branch v4.12-rc4

pinctrl: sunxi: Fix SPDIF function name for A83T

2017-05-23T09:31:27+00:00

We use well known standard names for functions that have name, such as
I2C, SPI, SPDIF, etc..

Fix the function name of SPDIF, which was named OWA (One Wire Audio)
based on Allwinner datasheets.

Fixes: 4730f33f0d82 ("pinctrl: sunxi: add allwinner A83T PIO controller
		      support")
Signed-off-by: Chen-Yu Tsai 
Acked-by: Maxime Ripard 
Signed-off-by: Linus Walleij

pinctrl: mxs: atomically switch mux and drive strength config

2017-05-23T09:27:53+00:00

To set the mux mode of a pin two bits must be set. Up to now this is
implemented using the following idiom:

	writel(mask, reg + CLR);
	writel(value, reg + SET);

. This however results in the mux mode being 0 between the two writes.

On my machine there is an IC's reset pin connected to LCD_D20. The
bootloader configures this pin as GPIO output-high (i.e. not holding the
IC in reset). When Linux reconfigures the pin to GPIO the short time
LCD_D20 is muxed as LCD_D20 instead of GPIO_1_20 is enough to confuse
the connected IC.

The same problem is present for the pin's drive strength setting which is
reset to low drive strength before using the right value.

So instead of relying on the hardware to modify the register setting
using two writes implement the bit toggling using read-modify-write.

Fixes: 17723111e64f ("pinctrl: add pinctrl-mxs support")
Signed-off-by: Uwe Kleine-König 
Acked-by: Shawn Guo 
Signed-off-by: Linus Walleij

pinctrl: cherryview: Extend the Chromebook DMI quirk to Intel_Strago systems

2017-05-23T08:08:40+00:00

It turns out there are quite many Chromebooks out there that have the
same keyboard issue than Acer Chromebook. All of them are based on
Intel_Strago reference and report their DMI_PRODUCT_FAMILY as
"Intel_Strago" (Samsung Chromebook 3 and Cyan Chromebooks are exceptions
for which we add separate entries).

Instead of adding each machine to the quirk table, we use
DMI_PRODUCT_FAMILY of "Intel_Strago" that hopefully covers most of the
machines out there currently.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=194945
Suggested: Dmitry Torokhov 
Signed-off-by: Mika Westerberg 
Reviewed-by: Andy Shevchenko 
Signed-off-by: Linus Walleij

pinctrl: core: Fix warning by removing bogus code

2017-05-22T15:36:13+00:00

Andre Przywara  noticed that we can get the
following warning with -EPROBE_DEFER:

"WARNING: CPU: 1 PID: 89 at drivers/base/dd.c:349
driver_probe_device+0x2ac/0x2e8"

Let's fix the issue by removing the indices as suggested by
Tejun Heo . All we have to do here is kill the radix
tree.

I probably ended up with the indices after grepping for removal
of all entries using radix_tree_for_each_slot() and the first
match found was gmap_radix_tree_free(). Anyways, no need for
indices here, and we can just do remove all the entries using
radix_tree_for_each_slot() along how the item_kill_tree() test
case does.

Fixes: c7059c5ac70a ("pinctrl: core: Add generic pinctrl functions for managing groups")
Fixes: a76edc89b100 ("pinctrl: core: Add generic pinctrl functions for managing groups")
Reported-by: Andre Przywara 
Signed-off-by: Tony Lindgren 
Reviewed-by: Andre Przywara 
Tested-by: Andre Przywara 
Signed-off-by: Linus Walleij

Revert "pinctrl: generic: Add bi-directional and output-enable"

2017-05-22T08:39:10+00:00

This reverts commit 8c58f1a7a4b6d1d723bf25fef9d842d5a11200d0.

It turns out that applying these generic properties was
premature: the properties used in the driver using this
are of unclear electrical nature and the subject need to
be discussed.

Signed-off-by: Linus Walleij

pinctrl: cherryview: Add terminate entry for dmi_system_id tables

2017-05-22T08:39:10+00:00

Make sure dmi_system_id tables are NULL terminated.

Fixes: 703650278372 ("pinctrl: cherryview: Add a quirk to make Acer
Chromebook keyboard work again")
Signed-off-by: Wei Yongjun 
Acked-by: Mika Westerberg 
Signed-off-by: Linus Walleij

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial

2017-05-03T02:09:35+00:00

Pull trivial tree updates from Jiri Kosina.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial:
  tty: fix comment for __tty_alloc_driver()
  init/main: properly align the multi-line comment
  init/main: Fix double "the" in comment
  Fix dead URLs to ftp.kernel.org
  drivers: Clean up duplicated email address
  treewide: Fix typo in xml/driver-api/basics.xml
  tools/testing/selftests/powerpc: remove redundant CFLAGS in Makefile: "-Wall -O2 -Wall" -> "-O2 -Wall"
  selftests/timers: Spelling s/privledges/privileges/
  HID: picoLCD: Spelling s/REPORT_WRTIE_MEMORY/REPORT_WRITE_MEMORY/
  net: phy: dp83848: Fix Typo
  UBI: Fix typos
  Documentation: ftrace.txt: Correct nice value of 120 priority
  net: fec: Fix typo in error msg and comment
  treewide: Fix typos in printk

Merge tag 'pinctrl-v4.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

2017-05-03T00:59:33+00:00

Pull pin control updates from Linus Walleij:
"This is the bulk of pin control changes for the v4.12 cycle.

The extra week before the merge window actually resulted in some of
the type of fixes that usually arrive after the merge window already
starting to trickle in from eager developers using -next, I'm
impressed.

I have recruited a Samsung subsubsystem maintainer (Krzysztof) to deal
with the onset of Samsung patches. It works great.

Apart from that it is a boring round, just incremental updates and
fixes all over the place, no serious core changes or anything exciting
like that. The most pleasing to see is Julia Cartwrights work to audit
the irqchip-providing drivers for realtime locking compliance. It's
one of those "I should really get around to looking into that" things
that have been on my TODO list since forever.

Summary:

Core changes:

- add bi-directional and output-enable pin configurations to the
generic bindings and generic pin controlling core.

New drivers or subdrivers:

- Armada 37xx SoC pin controller and GPIO support.

- Axis ARTPEC-6 SoC pin controller support.

- AllWinner A64 R_PIO controller support, and opening up the
AllWinner sunxi driver for ARM64 use.

- Rockchip RK3328 support.

- Renesas R-Car H3 ES2.0 support.

- STM32F469 support in the STM32 driver.

- Aspeed G4 and G5 pin controller support.

Improvements:

- a whole slew of realtime improvements to drivers implementing
irqchips: BCM, AMD, SiRF, sunxi, rockchip.

- switch meson driver to get the GPIO ranges from the device tree.

- input schmitt trigger support on the Rockchip driver.

- enable the sunxi (AllWinner) driver to also be used on ARM64
silicon.

- name the Qualcomm QDF2xxx GPIO lines.

- support GMMR GPIO regions on the Intel Cherryview. This fixes a
serialization problem on these platforms.

- pad retention support for the Samsung Exynos 5433.

- handle suspend-to-ram in the AT91-pio4 driver.

- pin configuration support in the Aspeed driver.

Cleanups:

- the final name of Rockchip RK1108 was RV1108 so rename the driver
and variables to stay consistent"

* tag 'pinctrl-v4.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (80 commits)
pinctrl: mediatek: Add missing pinctrl bindings for mt7623
pinctrl: artpec6: Fix return value check in artpec6_pmx_probe()
pinctrl: artpec6: Remove .owner field for driver
pinctrl: tegra: xusb: Silence sparse warnings
ARM: at91/at91-pinctrl documentation: fix spelling mistake: "contoller" -> "controller"
pinctrl: make artpec6 explicitly non-modular
pinctrl: aspeed: g5: Add pinconf support
pinctrl: aspeed: g4: Add pinconf support
pinctrl: aspeed: Add core pinconf support
pinctrl: aspeed: Document pinconf in devicetree bindings
pinctrl: Add st,stm32f469-pinctrl compatible to stm32-pinctrl
pinctrl: stm32: Add STM32F469 MCU support
Documentation: dt: Remove ngpios from stm32-pinctrl binding
pinctrl: stm32: replace device_initcall() with arch_initcall()
pinctrl: stm32: add possibility to use gpio-ranges to declare bank range
pinctrl: armada-37xx: Add gpio support
pinctrl: armada-37xx: Add pin controller support for Armada 37xx
pinctrl: dt-bindings: Add documentation for Armada 37xx pin controllers
pinctrl: core: Make pinctrl_init_controller() static
pinctrl: generic: Add bi-directional and output-enable
...

pinctrl: artpec6: Fix return value check in artpec6_pmx_probe()

2017-04-28T07:40:52+00:00

In case of error, the function pinctrl_register() returns
ERR_PTR() not NULL. The NULL test in the return value check
should be replaced with IS_ERR().

Signed-off-by: Wei Yongjun 
Acked-by: Jesper Nilsson 
Signed-off-by: Linus Walleij

pinctrl: artpec6: Remove .owner field for driver

2017-04-26T14:27:27+00:00

Remove .owner field if calls are used which set it automatically.

Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci

Signed-off-by: Wei Yongjun 
Signed-off-by: Linus Walleij