UPSTREAM: dm: treewide: Do not use the return value of simple uclass iterator

uclass_first_device/uclass_next_device return value will be removed,
don't use it.

With the current implementation dev

UPSTREAM: dm: treewide: Do not use the return value of simple uclass iterator

uclass_first_device/uclass_next_device return value will be removed,
don't use it.

With the current implementation dev is equivalent to !ret. It is
redundant to check both, ret check can be replaced with dev check, and
ret check inside the iteration is dead code.

Change-Id: Ie500bbed46f8d08721b14b1db7a7be94ea601799
Signed-off-by: Michal Suchanek <msuchanek@suse.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
(cherry picked from commit 4954937d922840c212b7eba297cc2d4779f087ad)
Signed-off-by: Cody Xie <cody.xie@rock-chips.com>

show more ...

UPSTREAM: dm: core: Do not stop uclass iteration on error

When probing a device fails NULL pointer is returned, and following
devices in uclass list cannot be iterated. Skip to next device on error

UPSTREAM: dm: core: Do not stop uclass iteration on error

When probing a device fails NULL pointer is returned, and following
devices in uclass list cannot be iterated. Skip to next device on error
instead.

With that the only condition under which these simple iteration
functions return error is when the dm is not initialized at uclass_get
time. This is not all that interesting, change return type to void.

Fixes: 6494d708bf ("dm: Add base driver model support")
Change-Id: Ie327dc21db7ee80f9fc32e7913be2af71bb074a7
Signed-off-by: Michal Suchanek <msuchanek@suse.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
(cherry picked from commit f21954750aa8ed445ab83998bb099e366136c428)
Signed-off-by: Cody Xie <cody.xie@rock-chips.com>

show more ...

UPSTREAM: dm: core: Add a function to find a device by drvdata

It is sometimes useful to find a device in a uclass using only its driver
data. The driver data often indicates the 'subtype' of the de

UPSTREAM: dm: core: Add a function to find a device by drvdata

It is sometimes useful to find a device in a uclass using only its driver
data. The driver data often indicates the 'subtype' of the device, e,g,
via its compatible string.

Add a function to handle this.

Change-Id: I6668a2a29c29346f57d3d975838459c0ac90fdea
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
(cherry picked from commit 50162348f0d3b915004733131acd81805e202c76)
Signed-off-by: Cody Xie <cody.xie@rock-chips.com>

show more ...

UPSTREAM: dm: core: Allow iterating devices without uclass_get()

At present we have uclass_foreach_dev() which requires that uclass_get()
be called beforehand to find the uclass. This is good if we

UPSTREAM: dm: core: Allow iterating devices without uclass_get()

At present we have uclass_foreach_dev() which requires that uclass_get()
be called beforehand to find the uclass. This is good if we suspect that
that function might fail, but often we know that the uclass is available.

Add a new helper which does this uclass_get() automatically, so that only
the uclass ID is needed.

Change-Id: I3106b199653bf8a32d2d1a0025b77261881716fc
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
(cherry picked from commit 3cf0fba4ff862d833545f82fb2209ff3c79d17b5)
Signed-off-by: Cody Xie <cody.xie@rock-chips.com>

show more ...

UPSTREAM: i2c: add dm_i2c_reg_clrset

Add function to apply a bitmask to an i2c register, so
that specific bits can be cleared and/or set.

Suggested-by: Simon Glass <sjg@chromium.org>
Signed-off-by:

UPSTREAM: i2c: add dm_i2c_reg_clrset

Add function to apply a bitmask to an i2c register, so
that specific bits can be cleared and/or set.

Suggested-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
(cherry picked from commit 2aefa6e3f2ab621483ca645b16c7bf8cb9334fa3)
Change-Id: Ic9d69b0c3b5e555637bcdf0f4ccfb086912acdcb

show more ...

UPSTREAM: syscon: dm: Add a new method to get a regmap from DTS

syscon_regmap_lookup_by_phandle() can be used to get the regmap of a syscon
device from a reference in the DTS. It operates similarly

UPSTREAM: syscon: dm: Add a new method to get a regmap from DTS

syscon_regmap_lookup_by_phandle() can be used to get the regmap of a syscon
device from a reference in the DTS. It operates similarly to the linux
version of the namesake function.

Change-Id: I04fa5cce5de5847184d6a951f36c640fd12b14a8
Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Wyon Bi <bivvy.bi@rock-chips.com>
(cherry picked from commit 6c3af1f24e4b8ccbef20bc00b9529f4a325583f2)

show more ...

UPSTREAM: spi: Add support for memory-mapped flash

On x86 platforms the SPI flash can be mapped into memory so that the
contents can be read with normal memory accesses.

Add a new SPI method to fin

UPSTREAM: spi: Add support for memory-mapped flash

On x86 platforms the SPI flash can be mapped into memory so that the
contents can be read with normal memory accesses.

Add a new SPI method to find the location of the SPI flash in memory. This
differs from the existing device-tree "memory-map" mechanism in that the
location can be discovered at run-time.

Change-Id: Ia736a9119159bad4770073f19a8862e0ea2610e9
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Jon Lin <jon.lin@rock-chips.com>
(cherry picked from commit c53b318e1bad2e0d5c2b846fadfc79ec77bfc5f7)

show more ...

UPSTREAM: firmware: add SCMI agent uclass

This change introduces SCMI agent uclass to interact with a firmware
using the SCMI protocols [1].

SCMI agent uclass currently supports a single method to

UPSTREAM: firmware: add SCMI agent uclass

This change introduces SCMI agent uclass to interact with a firmware
using the SCMI protocols [1].

SCMI agent uclass currently supports a single method to request
processing of the SCMI message by an identified server. A SCMI message
is made of a byte payload associated to a protocol ID and a message ID,
all defined by the SCMI specification [1]. On return from process_msg()
method, the caller gets the service response.

SCMI agent uclass defines a post bind generic sequence for all devices.
The sequence binds all the SCMI protocols listed in the FDT for that
SCMI agent device. Currently none, but later change will introduce
protocols.

This change implements a simple sandbox device for the SCMI agent uclass.
The sandbox nicely answers SCMI_NOT_SUPPORTED to SCMI messages.
To prepare for further test support, the sandbox exposes a architecture
function for test application to read the sandbox emulated devices state.
Currently supports 2 SCMI agents, identified by an ID in the FDT device
name. The simplistic DM test does nothing yet.

SCMI agent uclass is designed for platforms that embed a SCMI server in
a firmware hosted somewhere, for example in a companion co-processor or
in the secure world of the executing processor. SCMI protocols allow an
SCMI agent to discover and access external resources as clock, reset
controllers and more. SCMI agent and server communicate following the
SCMI specification [1]. This SCMI agent implementation complies with
the DT bindings defined in the Linux kernel source tree regarding
SCMI agent description since v5.8.

Links: [1] https://developer.arm.com/architectures/system-architectures/software-standards/scmi
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
Cc: Simon Glass <sjg@chromium.org>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Sudeep Holla <sudeep.holla@arm.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

Conflicts:
arch/sandbox/dts/test.dts
configs/sandbox_defconfig
drivers/firmware/Kconfig
drivers/firmware/Makefile
test/dm/Makefile

(cherry picked from commit 358599efd827b0ee48af864537cc86facc9167c0)
Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
Change-Id: I251bf48c2bb60af041e71c5904e0eb73f0243439

show more ...

UPSTREAM: clk: add clk_valid()

Add clk_valid() to check for optional clocks are valid.
Call clk_valid() in test/dm/clk.c and add relevant test routine to
sandbox clk tests.

Signed-off-by: Fabrice G

UPSTREAM: clk: add clk_valid()

Add clk_valid() to check for optional clocks are valid.
Call clk_valid() in test/dm/clk.c and add relevant test routine to
sandbox clk tests.

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: David Wu <david.wu@rock-chips.com>
Change-Id: I78b1edea1f8ef54d3aa3f7610d39d79dd994d1bf

show more ...

UPSTREAM: dm: Add a No-op uclass

This uclass is intended for devices that do not need any features from the
uclass, including binding children.
This will typically be used by devices that are used t

UPSTREAM: dm: Add a No-op uclass

This uclass is intended for devices that do not need any features from the
uclass, including binding children.
This will typically be used by devices that are used to bind child devices
but do not use dm_scan_fdt_dev() to do it. That is for example the case of
several USB wrappers that have 2 child devices (1 for device and 1 for
host) but bind only one at a any given time.

Change-Id: Iad9ba5f368bd2de9940cf069baf9bec9d668920c
Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Frank Wang <frank.wang@rock-chips.com>
(cherry picked from commit 07e33711fec4f1106f36805b5dc830da07c783c5)

show more ...

UPSTREAM: clk: add sandbox test for bulk API

This patch adds the bulk clock API tests for the sandbox test suite.

It's very similar to the main test but only uses the _bulk() API and
checks if the

UPSTREAM: clk: add sandbox test for bulk API

This patch adds the bulk clock API tests for the sandbox test suite.

It's very similar to the main test but only uses the _bulk() API and
checks if the clocks are correctly enabled/disabled.

Change-Id: Ibfd7ea033e9a1c2ca76d88be8ca562a660f30448
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Frank Wang <frank.wang@rock-chips.com>
(cherry picked from commit 65388d0dc5a36fc86718ffcdf08ac5671ae27b5d)

show more ...

UPSTREAM: reset: add sandbox test for bulk API

This patch adds the bulk reset API tests for the sandbox test suite.

Unlike the main test, it also check the "other" reset signal using the bulk API
a

UPSTREAM: reset: add sandbox test for bulk API

This patch adds the bulk reset API tests for the sandbox test suite.

Unlike the main test, it also check the "other" reset signal using the bulk API
and checks if the resets are correctly asserted/deasserted.

To allow the bulk API to work, and avoid changing the DT, the number of resets
of the sandbox reset controller has been bumped to 101 for the "other" reset
line to be valid.

Change-Id: Iac62a1c6ee5637695f7d0dd77b35f047eca641a9
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Frank Wang <frank.wang@rock-chips.com>
(cherry picked from commit 91f5f8b73ccba5bf591912fe6e8c500a7d51eb93)

show more ...

dm: cmd: add "dm aliases" support

Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
Change-Id: I46d44a31a6fe82627bde5ff655b125e44add7a8a