w1: add UART w1 bus driver

Add a UART 1-Wire bus driver. The driver utilizes the UART interface via
the Serial Device Bus to create the 1-Wire timing patterns. The driver
was tested on a "Raspberry

w1: add UART w1 bus driver

Add a UART 1-Wire bus driver. The driver utilizes the UART interface via
the Serial Device Bus to create the 1-Wire timing patterns. The driver
was tested on a "Raspberry Pi 3B" with a DS18B20 and on a "Variscite
DART-6UL" with a DS18S20 temperature sensor.

The 1-Wire timing pattern and the corresponding UART baud-rate with the
interpretation of the transferred bytes are described in the document:

Link: https://www.analog.com/en/technical-articles/using-a-uart-to-implement-a-1wire-bus-master.html

In short, the UART peripheral must support full-duplex and operate in
open-drain mode. The timing patterns are generated by a specific
combination of baud-rate and transmitted byte, which corresponds to a
1-Wire read bit, write bit or reset.

Signed-off-by: Christoph Winklhofer <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
[krzysztof: w1_uart_serdev_receive_buf() return type fixup]
Signed-off-by: Krzysztof Kozlowski <[email protected]>

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w1: Add AXI 1-wire host driver for AMD programmable logic IP core

Add a host driver to support the AMD 1-Wire programmable logic IP block.
This block guarantees protocol timing for driving off-board

w1: Add AXI 1-wire host driver for AMD programmable logic IP core

Add a host driver to support the AMD 1-Wire programmable logic IP block.
This block guarantees protocol timing for driving off-board devices such
as thermal sensors, proms, etc.

Add file to MAINTAINERS

Co-developed-by: Thomas Delev <[email protected]>
Signed-off-by: Thomas Delev <[email protected]>
Signed-off-by: Kris Chaplin <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Krzysztof Kozlowski <[email protected]>

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w1: omap-hdq: allow compile testing

omap-hdq does not depend on anything from ARCH_OMAP for building.

Signed-off-by: Krzysztof Kozlowski <[email protected]>
Link: https://lore.kernel.o

w1: omap-hdq: allow compile testing

omap-hdq does not depend on anything from ARCH_OMAP for building.

Signed-off-by: Krzysztof Kozlowski <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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w1: remove ds1wm driver

This driver was used by the mfd/asic3 and mfd/htc-pasic3 drivers, but
both of those are removed as part of the PXA spring cleaning, which
leaves the w1 support orphaned as we

w1: remove ds1wm driver

This driver was used by the mfd/asic3 and mfd/htc-pasic3 drivers, but
both of those are removed as part of the PXA spring cleaning, which
leaves the w1 support orphaned as well.

Cc: Evgeniy Polyakov <[email protected]>
Cc: Szabolcs Gyurko <[email protected]>
Acked-by: Robert Jarzmik <[email protected]>
Signed-off-by: Arnd Bergmann <[email protected]>

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w1: add 1-wire master driver for IP block found in SGI ASICs

Starting with SGI Origin machines nearly every new SGI ASIC contains
an 1-Wire master. They are used for attaching One-Wire prom devices,

w1: add 1-wire master driver for IP block found in SGI ASICs

Starting with SGI Origin machines nearly every new SGI ASIC contains
an 1-Wire master. They are used for attaching One-Wire prom devices,
which contain information about part numbers, revision numbers,
serial number etc. and MAC addresses for ethernet interfaces.
This patch adds a master driver to support this IP block.
It also adds an extra field dev_id to struct w1_bus_master, which
could be in used in slave drivers for creating unique device names.

Signed-off-by: Thomas Bogendoerfer <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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treewide: Add SPDX license identifier - Makefile/Kconfig

Add SPDX license identifiers to all Make/Kconfig files which:

- Have no license information of any form

These files fall under the project

treewide: Add SPDX license identifier - Makefile/Kconfig

Add SPDX license identifiers to all Make/Kconfig files which:

- Have no license information of any form

These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:

GPL-2.0-only

Signed-off-by: Thomas Gleixner <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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w1: Allow compile test of GPIO consumers if !GPIOLIB

The GPIO subsystem provides dummy GPIO consumer functions if GPIOLIB is
not enabled. Hence drivers that depend on GPIOLIB, but use GPIO consumer

w1: Allow compile test of GPIO consumers if !GPIOLIB

The GPIO subsystem provides dummy GPIO consumer functions if GPIOLIB is
not enabled. Hence drivers that depend on GPIOLIB, but use GPIO consumer
functionality only, can still be compiled if GPIOLIB is not enabled.

Relax the dependency on GPIOLIB if COMPILE_TEST is enabled, where
appropriate.

Signed-off-by: Geert Uytterhoeven <[email protected]>
Acked-by: Linus Walleij <[email protected]>
Acked-by: Evgeniy Polyakov <[email protected]>
Signed-off-by: Linus Walleij <[email protected]>

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w1: mxc_w1: Enable driver compilation with COMPILE_TEST

This helps increasing build testing coverage.
To do this, __raw_{read,write}b() functions was be replaced with
simple {read,write}b() variants

w1: mxc_w1: Enable driver compilation with COMPILE_TEST

This helps increasing build testing coverage.
To do this, __raw_{read,write}b() functions was be replaced with
simple {read,write}b() variants.

Signed-off-by: Alexander Shiyan <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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w1: Remove excess dependencies on W1 for masters and slaves

Configuration for masters and slaves is included only if W1 symbol
enabled, so no reason to check it once more.

Signed-off-by: Alexander

w1: Remove excess dependencies on W1 for masters and slaves

Configuration for masters and slaves is included only if W1 symbol
enabled, so no reason to check it once more.

Signed-off-by: Alexander Shiyan <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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Remove GENERIC_HARDIRQ config option

After the last architecture switched to generic hard irqs the config
options HAVE_GENERIC_HARDIRQS & GENERIC_HARDIRQS and the related code
for !CONFIG_GENERIC_HA

Remove GENERIC_HARDIRQ config option

After the last architecture switched to generic hard irqs the config
options HAVE_GENERIC_HARDIRQS & GENERIC_HARDIRQS and the related code
for !CONFIG_GENERIC_HARDIRQS can be removed.

Signed-off-by: Martin Schwidefsky <[email protected]>

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Convert selectors of GENERIC_GPIO to GPIOLIB

GENERIC_GPIO is now equivalent to GPIOLIB and features that depended on
GENERIC_GPIO can now depend on GPIOLIB to allow removal of this option.

Signed-o

Convert selectors of GENERIC_GPIO to GPIOLIB

GENERIC_GPIO is now equivalent to GPIOLIB and features that depended on
GENERIC_GPIO can now depend on GPIOLIB to allow removal of this option.

Signed-off-by: Alexandre Courbot <[email protected]>
Acked-by: Linus Walleij <[email protected]>
Acked-by: Grant Likely <[email protected]>

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ARM: OMAP: Fix drivers to depend on omap for internal devices

These devices are not available on other architectures, so
let's limit them to omap.

If the driver subsystem maintainers want to build

ARM: OMAP: Fix drivers to depend on omap for internal devices

These devices are not available on other architectures, so
let's limit them to omap.

If the driver subsystem maintainers want to build test
system wide changes without building for each target,
it's easy to carry a test patch that just strips out the
depends entries from Kconfig files.

Signed-off-by: Tony Lindgren <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

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drivers/w1/masters: remove CONFIG_EXPERIMENTAL

This config item has not carried much meaning for a while now and is
almost always enabled by default. As agreed during the Linux kernel
summit, remove

drivers/w1/masters: remove CONFIG_EXPERIMENTAL

This config item has not carried much meaning for a while now and is
almost always enabled by default. As agreed during the Linux kernel
summit, remove it.

CC: Andrew Morton <[email protected]>
CC: Paul Walmsley <[email protected]>
CC: Felipe Balbi <[email protected]>
Signed-off-by: Kees Cook <[email protected]>
Acked-by: Evgeniy Polyakov <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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w1: omap-hdq: drop ARCH dependency

Let the driver compile everywhere while
also removing unnecessary headers.

Signed-off-by: Felipe Balbi <[email protected]>
Acked-by: Evgeniy Polyakov <[email protected]>

w1: omap-hdq: drop ARCH dependency

Let the driver compile everywhere while
also removing unnecessary headers.

Signed-off-by: Felipe Balbi <[email protected]>
Acked-by: Evgeniy Polyakov <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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W1: OMAP HDQ1W: allow driver to be built on all OMAP2+

Allow the OMAP HDQ1W driver to be built for all OMAP2+ SoCs by
adjusting KConfig dependencies. The previous dependency required
either SOC_OMA

W1: OMAP HDQ1W: allow driver to be built on all OMAP2+

Allow the OMAP HDQ1W driver to be built for all OMAP2+ SoCs by
adjusting KConfig dependencies. The previous dependency required
either SOC_OMAP2430 or ARCH_OMAP3 to be set, but the HDQ IP block is
present on OMAP2420 and OMAP44xx SoCs. The driver was still
selectable on multi-OMAP kernel configurations, however; so the
previous prohibition was rather pointless.

Signed-off-by: Paul Walmsley <[email protected]>
Cc: Evgeniy Polyakov <[email protected]>
Acked-by: Evgeniy Polyakov <[email protected]>

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w1: W1_MASTER_DS1WM should depend on GENERIC_HARDIRQS

On m68k (which doesn't support generic hardirqs yet):

drivers/w1/masters/ds1wm.c: In function `ds1wm_probe':
drivers/w1/masters/ds1wm.c: er

w1: W1_MASTER_DS1WM should depend on GENERIC_HARDIRQS

On m68k (which doesn't support generic hardirqs yet):

drivers/w1/masters/ds1wm.c: In function `ds1wm_probe':
drivers/w1/masters/ds1wm.c: error: implicit declaration of function `irq_set_irq_type'

Signed-off-by: Geert Uytterhoeven <[email protected]>
Cc: Evgeniy Polyakov <[email protected]>
Cc: Jean-Franois Dagenais <[email protected]>
Cc: Matt Reimer <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

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w1: complete the 1-wire (w1) ds1wm driver search algorithm

This adds multi-slave support of the w1 bus for the ds1wm Synthesizable
1-Wire Bus Master. Also many fixes and tweaks based on the rev3 of

w1: complete the 1-wire (w1) ds1wm driver search algorithm

This adds multi-slave support of the w1 bus for the ds1wm Synthesizable
1-Wire Bus Master. Also many fixes and tweaks based on the rev3 of the
datasheet http://datasheets.maxim-ic.com/en/ds/DS1WM.pdf

Signed-off-by: Jean-François Dagenais <[email protected]>
Cc: Evgeniy Polyakov <[email protected]>
Cc: Szabolcs Gyurko <[email protected]>
Cc: Matt Reimer <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

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omap: Start using CONFIG_SOC_OMAP

We want to have just CONFIG_ARCH_OMAP2, 3 and 4. The rest
are nowadays just subcategories of these.

Search and replace the following:

ARCH_OMAP2420 SOC_OMAP2420

omap: Start using CONFIG_SOC_OMAP

We want to have just CONFIG_ARCH_OMAP2, 3 and 4. The rest
are nowadays just subcategories of these.

Search and replace the following:

ARCH_OMAP2420 SOC_OMAP2420
ARCH_OMAP2430 SOC_OMAP2430
ARCH_OMAP3430 SOC_OMAP3430

No functional changes.

Signed-off-by: Tony Lindgren <[email protected]>
Signed-off-by: Thomas Weber <[email protected]>
Acked-by: Sourav Poddar <[email protected]>

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omap3: Replace ARCH_OMAP34XX with ARCH_OMAP3

Replace ARCH_OMAP34XX with ARCH_OMAP3

Signed-off-by: Tony Lindgren <[email protected]>

trivial: Kconfig: .ko is normally not included in module names

.ko is normally not included in Kconfig help, make it consistent.

Signed-off-by: Pavel Machek <[email protected]>
Signed-off-by: Jiri Kosin

trivial: Kconfig: .ko is normally not included in module names

.ko is normally not included in Kconfig help, make it consistent.

Signed-off-by: Pavel Machek <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]>

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w1: add 1-wire master driver for i.MX27 / i.MX31

This patch adds support for the 1-wire master interface for i.MX27 and
i.MX31.

Signed-off-by: Luotao Fu <[email protected]>
Signed-off-by: Sascha

w1: add 1-wire master driver for i.MX27 / i.MX31

This patch adds support for the 1-wire master interface for i.MX27 and
i.MX31.

Signed-off-by: Luotao Fu <[email protected]>
Signed-off-by: Sascha Hauer <[email protected]>
Signed-off-by: Evgeniy Polyakov <[email protected]>
Cc: Russell King <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

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W1_MASTER_DS1WM should depend on HAVE_CLK

Uses clk_...() a lot

Acked-by: [email protected]
Signed-off-by: Al Viro <[email protected]>
Signed-off-by: Linus Torvalds <torvalds@linux-f

W1_MASTER_DS1WM should depend on HAVE_CLK

Uses clk_...() a lot

Acked-by: [email protected]
Signed-off-by: Al Viro <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

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hdq driver for OMAP2430/3430

The HDQ/1-Wire module of TI OMAP2430/3430 platforms implement the hardware
protocol of the master functions of the Benchmark HDQ and the Dallas
Semiconductor 1-Wire prot

hdq driver for OMAP2430/3430

The HDQ/1-Wire module of TI OMAP2430/3430 platforms implement the hardware
protocol of the master functions of the Benchmark HDQ and the Dallas
Semiconductor 1-Wire protocols. These protocols use a single wire for
communication between the master (HDQ/1-Wire controller) and the slave
(HDQ/1-Wire external compliant device).

This patch provides the HDQ driver to suppport TI OMAP2430/3430 platforms.

Signed-off-by: Madhusudhan Chikkature<[email protected]>
Acked-by: Felipe Balbi <[email protected]>
Acked-by: Evgeniy Polyakov <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

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w1-gpio: add GPIO w1 bus master driver

Add a GPIO 1-wire bus master driver. The driver used the GPIO API to
control the wire and the GPIO pin can be specified using platform data
similar to i2c-gpi

w1-gpio: add GPIO w1 bus master driver

Add a GPIO 1-wire bus master driver. The driver used the GPIO API to
control the wire and the GPIO pin can be specified using platform data
similar to i2c-gpio. The driver was tested with AT91SAM9260 + DS2401.

Signed-off-by: Ville Syrjala <[email protected]>
Cc: Evgeniy Polyakov <[email protected]>
Cc: David Brownell <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

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Use menuconfig objects: W1

Use menuconfigs instead of menus, so the whole menu can be disabled at once
instead of going through all options.

Signed-off-by: Jan Engelhardt <[email protected]>
Cc: Evgen

Use menuconfig objects: W1

Use menuconfigs instead of menus, so the whole menu can be disabled at once
instead of going through all options.

Signed-off-by: Jan Engelhardt <[email protected]>
Cc: Evgeniy Polyakov <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

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