running at its second half cycle.
Fix this by adding a wait loop in giveback() that waits until SSP becomes
idle before deasserting the chipselect.
Reported-by: Weifeng Voon
Signed-off-by: Jarkko Nikula
Signed-off-by: Mark Brown
(cherry picked from commit
further in pump_transfers() where the actual
transfer mode is known and use drv_data->dma_mapped flag instead of
chip->enable_dma for printing the mode.
Signed-off-by: Jarkko Nikula
Signed-off-by: Mark Brown
(cherry picked from commit ee03672d961bdac2ac1e593e9c29b0d3b7320409)
Signed-off-by: Weifeng Vo
)
Signed-off-by: Weifeng Voon
---
drivers/spi/spi-atmel.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/spi/spi-atmel.c b/drivers/spi/spi-atmel.c
index a2f40b1..7e66634 100644
--- a/drivers/spi/spi-atmel.c
+++ b/drivers/spi/spi-atmel.c
@@ -1467,6 +1467,7 @@ static int
d-off-by: Weifeng Voon
---
drivers/spi/spi-pxa2xx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c
index 227e8ba..9b9a528 100644
--- a/drivers/spi/spi-pxa2xx.c
+++ b/drivers/spi/spi-pxa2xx.c
@@ -572,7 +572,7 @@ static
igned-off-by: Weifeng Voon
---
drivers/spi/spi-meson-spifc.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/spi/spi-meson-spifc.c b/drivers/spi/spi-meson-spifc.c
index 5468fc7..2465259 100644
--- a/drivers/spi/spi-meson-spifc.c
+++ b/drivers/spi/spi-meson-spifc.c
@@ -444,6 +444,7 @@ s
0122a5183088e3117bb9c8fbe248914efb502f3f)
Signed-off-by: Weifeng Voon
---
drivers/spi/spi-bcm2835.c | 10 ++
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/drivers/spi/spi-bcm2835.c b/drivers/spi/spi-bcm2835.c
index c9357bb..e7874a6 100644
--- a/drivers/spi/spi-bcm2835.c
statistics'
Signed-off-by: Geliang Tang
Signed-off-by: Mark Brown
(cherry picked from commit 0243ed44ad4a25dbd2e92ad97e5e12a1a6c72d6c)
Signed-off-by: Weifeng Voon
---
include/linux/spi/spi.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/spi/spi.h b/includ
Trønnes (private communication)
Signed-off-by: Martin Sperl
Signed-off-by: Mark Brown
(cherry picked from commit 3ecd37edaa2a6ba3246e2c35714be9316b1087fe)
Signed-off-by: Weifeng Voon
---
drivers/spi/spi-bcm2835.c | 303 +-
1 file changed, 301 inser
that are handled immediately without a context switch
to the spi_pump worker-thread
Signed-off-by: Martin Sperl
Signed-off-by: Mark Brown
(cherry picked from commit eca2ebc7e007c9e2b8f5ecfcfc74b53fbe68e42b)
Signed-off-by: Weifeng Voon
---
drivers/spi/spi.c
- 1)
should have been used instead.
Also fixes a copy/paste error.
Reported-by:
Signed-off-by: Martin Sperl
Signed-off-by: Mark Brown
Cc: sta...@vger.kernel.org
(cherry picked from commit 2a3fffd45822070309bcf0b1e1dae624d633824a)
Signed-off-by: Weifeng Voon
---
drivers/spi/spi-bcm2835.c | 6
x_buff
was checked twice instead of checking both rx and tx_buff.
Reported by: Stephen Rothwell
Signed-off-by: Martin Sperl
Signed-off-by: Mark Brown
(cherry picked from commit 7e52be0d576e8f7bc99a606f07b9d000c4340f04)
Signed-off-by: Weifeng Voon
---
drivers/spi/spi-bcm2835.c | 8 +-
56ba96a028)
Signed-off-by: Weifeng Voon
---
drivers/spi/spi-pxa2xx.c | 4 +---
drivers/spi/spi-pxa2xx.h | 3 ---
2 files changed, 1 insertion(+), 6 deletions(-)
diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c
index c304f64..ab9914a 100644
--- a/drivers/spi/spi-pxa2xx.c
+++ b/drive
This changeset from mainline are for BXT/APL.
The commits are for linux-yocto4.1 standard/base branch.
Alexandre Belloni (1):
spi: atmel: remove warning when !CONFIG_PM_SLEEP
Geliang Tang (1):
spi: fix kernel-doc warnings in spi.h
Jarkko Nikula (4):
spi: spi-pxa2xx: Remove unused legacy nu
picked from commit a750b124cfd27bae1a12df22318db5a2083dfb12)
Signed-off-by: Weifeng Voon
---
drivers/spi/spi-bcm2835.c | 87 +++
1 file changed, 50 insertions(+), 37 deletions(-)
diff --git a/drivers/spi/spi-bcm2835.c b/drivers/spi/spi-bcm2835.c
index
From: kbuild test robot
Signed-off-by: Fengguang Wu
Signed-off-by: Mark Brown
(cherry picked from commit 29ad1a7a9e08f1d2b6795c5278a0c0fd23679ded)
Signed-off-by: Weifeng Voon
---
drivers/spi/spi-bcm2835.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/spi/spi
)
Cc: sta...@vger.kernel.org # v4.3+
Signed-off-by: Heikki Krogerus
Signed-off-by: Lee Jones
(cherry picked from commit 41a3da2b8e1639d983192e3650670df4ecc94cf7)
Signed-off-by: Weifeng Voon
---
drivers/mfd/intel-lpss.c | 19 ++-
1 file changed, 18 insertions(+), 1 deletion
build-in device
properties instead.
Signed-off-by: Mika Westerberg
Signed-off-by: Andy Shevchenko
Signed-off-by: Lee Jones
(cherry picked from commit 0343b2f4e4a52c907d7676ce3159e0b5e7f0301c)
Signed-off-by: Weifeng Voon
---
drivers/mfd/intel-lpss-acpi.c | 12
drivers/mfd/intel-lpss
This changeset from mainline are for BXT/APL.
The commits are for linux-yocto4.1 standard/base branch.
Heikki Krogerus (1):
mfd: intel-lpss: Save register context on suspend
Mika Westerberg (1):
mfd: intel-lpss: Pass I2C configuration via properties on BXT
drivers/mfd/intel-lpss-acpi.c | 12
From: "Voon, Weifeng"
This changeset from mainline (29 commits) are for BXT/APL.
The commits are for linux-yocto4.1 standard/base branch.
URL: https://github.com/wvoon/yocto-backport.git
Branch:standard_base
Andy Shevchenko (3):
spi: pxa2xx: choose closest lower speed
spi: pxa2xx: move debu
From: Suravee Suthikulpanit
The current driver uses input clock source frequency to calculate
values for [SS|FS]_[HC|LC] registers. However, when booting ACPI, we do not
currently have a good way to provide the frequency information.
Instead, we can leverage the SSCN and FFCN ACPI methods, which
From: Baruch Siach
Set the i2c_adapter retries field to a sensible value. This allows the i2c core
to retry master_xfer() when it returns -EAGAIN. Currently the i2c-designware
driver returns -EAGAIN only on Tx arbitration failure (DW_IC_TX_ARB_LOST).
Reported-by: Rolland Chau
Signed-off-by: Bar
From: Mika Westerberg
With ACPI _DSD (introduced in ACPI v5.1) it is now possible to pass device
configuration information from ACPI in addition to DT. In order to support
this, convert the driver to use the unified device property accessors
instead of DT specific.
Change to ordering a bit so th
From: Jarkko Nikula
dw_readl() and dw_writel() are not used outside of i2c-designware-core and
they are not exported so make them static and remove their forward
declaration.
Signed-off-by: Jarkko Nikula
Signed-off-by: Wolfram Sang
(cherry picked from commit 8a437459523ad878c6c2bd3a7703b1b88fc
From: Jarkko Nikula
i2c_dw_is_enabled() became unused by the commit be58eda775c8
("i2c: designware-pci: Cleanup driver power management") and
i2c_dw_enable() by the commit 3a48d1c08fe0 ("i2c: prevent spurious
interrupt on Designware controllers").
Signed-off-by: Jarkko Nikula
Signed-off-by: Wol
From: Jarkko Nikula
There is no need to clear interrupts in i2c_dw_pci_probe() since only place
where interrupts are unmasked is i2c_dw_xfer_init() and there interrupts
are always cleared after commit 2a2d95e9d6d2 ("i2c: designware: always
clear interrupts before enabling them").
This allows to
From: Jarkko Nikula
Make it easier to distinguish between i2c-designware-platdrv and
i2c-designware-core functions and to be consistent with
i2c-designware-pcidrv.
Signed-off-by: Jarkko Nikula
Signed-off-by: Wolfram Sang
(cherry picked from commit 6ad6fde3970c98348e4201efc22c92be414c86a6)
Sign
From: Jarkko Nikula
There is some code duplication in i2c-designware-platdrv and
i2c-designware-pcidrv probe functions. What is even worse that duplication
requires i2c_dw_xfer(), i2c_dw_func() and i2c_dw_isr() i2c-designware-core
functions to be exported.
Therefore move common code into new i2c
From: Xiangliang Yu
Because of some hardware limitation, AMD I2C controller can't
trigger pending interrupt if interrupt status has been changed
after clearing interrupt status bits. Then, I2C will lost
interrupt and IO timeout.
According to hardware design, this patch implements a workaround
to
From: Jarkko Nikula
Device must not generate interrupts before registering the interrupt
handler so move i2c_dw_disable_int() before requesting it.
There are no known issues with this. The code has been here since commit
fe20ff5c7e9c ("i2c-designware: Add support for Designware core behind PCI
d
From: Jarkko Nikula
Printing adapter name is irrelevant from this debug print and makes output
needlessly long. Having already device and functions names printed here is
enough for debugging.
While at it remove extra space from "enabled= 0x" and use "%#x" for
printing "0x" prefixed hexadecimal v
From: Suravee Suthikulpanit
Add device HID AMDI0510 to match the I2C controlers on AMD Seattle platform
Signed-off-by: Suravee Suthikulpanit
Signed-off-by: Wolfram Sang
(cherry picked from commit 90708ce22b4849194d195bad128e94a110426434)
Signed-off-by: Voon, Weifeng
Conflicts:
driver
From: Andy Shevchenko
The mentioned flag fixes a warning on Intel Edison board since one of the I2C
controller shares IRQ line with watchdog timer.
Signed-off-by: Andy Shevchenko
Acked-by: Mika Westerberg
Signed-off-by: Wolfram Sang
(cherry picked from commit b0898fdaffb2932aba0108986b90d9d69
From: Geliang Tang
Use to_pci_dev() instead of open-coding it.
Signed-off-by: Geliang Tang
Reviewed-by: Andy Shevchenko
Signed-off-by: Wolfram Sang
(cherry picked from commit 238c44a70c0637765709c78eeaddb2a3d3674b88)
Signed-off-by: Voon, Weifeng
---
drivers/i2c/busses/i2c-designware-pcidrv.
From: Jisheng Zhang
Commit 1fc2fe204cb9 ("i2c: designware: Add runtime PM hooks") adds
runtime pm support using the same ops for system pm and runtime pm.
When suspend to ram, the i2c host may have been runtime suspended, thus
i2c_dw_disable() hangs.
Previously, I fixed this issue by separating
From: Loc Ho
Enable APM X-Gene ACPI I2C device support by adding the
corresponding ACPI ID. The platform ACPI APD corresponding
change is required to provide the proper clock frequency input.
Signed-off-by: Loc Ho
Acked-by: Mika Westerberg
Signed-off-by: Rafael J. Wysocki
(cherry picked from
From: Ken Xue
The patch reverts commit a445900c9060 (i2c: designware: Add support for
AMD I2C controller). It never worked anyhow because it did not register
a proper clkdev.
Since kernel 4.1 starts to support APD, there is no need to get freq
from id->driver_data for AMD0010. clkdev is supposed
From: "Voon, Weifeng"
This i2c patches are needed to be backported to enable Apollo Lake/Broxton
This patches are from mainline and targeted for linux-yocto-4.1 on
standard/base branch
Andy Shevchenko (1):
i2c: designware-pci: use IRQF_COND_SUSPEND flag
Baruch Siach (1):
i2c: designware: r
From: Mika Westerberg
Make it possible to pass built-in device properties to platform device
drivers. This is useful if the system does not have any firmware interface
like Device Tree or ACPI which provides these.
Properties associated with the platform device will be automatically
released whe
From: Andy Shevchenko
In the similar way like we do for the platform data we propagate the device
properties. For example, in case of Intel LPSS drivers we may provide a
specific property to tell the actual device driver an additional information
such as platform name.
Signed-off-by: Andy Shevch
From: Mika Westerberg
Typically when a device is created the bus core it belongs to (for example
PCI) does not know if the device supports things like latency tolerance.
This is left to the driver that binds to the device in question. However,
at that time the device has already been created and
From: Andy Shevchenko
The HS-UART host controller driver needs to know certain properties like
width of the register set if it cannot get that information from ACPI or
DT. In order to support non-ACPI systems we pass this information to the
driver via device properties.
Signed-off-by: Mika Weste
From: Andy Shevchenko
The new function device_for_each_child_reverse() is helpful to traverse the
registered devices in a reversed order, e.g. in the case when an operation on
each device should be done first on the last added device, then on one before
last and so on.
Signed-off-by: Andy Shevch
From: Andy Shevchenko
klist_prev() gets the previous element in the list. It is useful to traverse
through the list in reverse order, for example, to provide LIFO (last in first
out) variant of access.
Signed-off-by: Andy Shevchenko
Acked-by: Greg Kroah-Hartman
Signed-off-by: Lee Jones
(cherr
From: Mika Westerberg
If the boot firmware does not support ACPI we need a way to pass device
configuration information to the drivers. The unified device properties API
already supports passing platform data via properties so let's take
advantage of that and allow probe drivers to pass set of pr
From: Andy Shevchenko
Intel Broxton has the same LPSS block than Intel Sunrisepoint so add
Broxton PCI IDs to the list.
Signed-off-by: Mika Westerberg
Signed-off-by: Andy Shevchenko
Signed-off-by: Lee Jones
(cherry picked from commit ff0a04a699b9ea9b795208baff2ae727a6a3085a)
Signed-off-by: Vo
From: Mika Westerberg
Intel Skylake the LPSS I2C pad circuit has internal delays that require
programming non-zero SDA hold time for the I2C host controller. If this is
not done communication to slave devices may fail with arbitration lost
errors like the one seen below taken from Lenovo Yoga 900
From: Andy Shevchenko
There are already helper functions to do 64-bit I/O on 32-bit machines, thus we
don't need to reinvent the wheel. In our case we can't use readq() / writeq()
even on 64-bit kernel since there is a hardware limitation (OCP bus is a 32-bit
bus).
Signed-off-by: Andy Shevchenko
From: Mika Westerberg
Intel Broxton has the same LPSS block than Intel Sunrisepoint so add
Broxton ACPI IDs to the list.
Signed-off-by: Mika Westerberg
Signed-off-by: Andy Shevchenko
Signed-off-by: Lee Jones
(cherry picked from commit 6a636ec0ab19c64e83d1008a80606e1030a0c422)
Signed-off-by: V
From: "Voon, Weifeng"
This "MFD" patches needed to backport for Apollo Lake/Broxton
This patches are from mainline and will have dependencies on the previous
2 patches title:
"device property : Backport device property patches to 4.1"
"device property : More backport device property patches to
From: Andy Shevchenko
The new coming Intel platforms such as Skylake will contain Sunrisepoint PCH.
The main difference to the previous platforms is that the LPSS devices are
compound devices where usually main (SPI, HSUART, or I2C) and DMA IPs are
present.
This patch brings the driver for such
From: Andy Shevchenko
Just a style fix, no functional changes.
Signed-off-by: Andy Shevchenko
Signed-off-by: Rafael J. Wysocki
(cherry picked from commit aace7367bf83aef7baa021c7bcc9d2e331b040aa)
Signed-off-by: Voon, Weifeng
---
include/linux/property.h | 2 +-
1 file changed, 1 insertion(+)
From: Andy Shevchenko
Arrays can not have zero elements by definition of the unified device
properties. If such property comes from outside we should not allow it to pass.
Otherwise memory allocation on 0 length will return non-NULL value, which we
currently don't check.
Prevent memory allocatio
From: Andrew Morton
gcc-4.4.4 has problems with initialization of anonymous unions:
drivers/mfd/intel-lpss-acpi.c:30: error: unknown field 'value' specified in
initializer
work around this by crafting the initializers in a manner which the
compiler can handle.
Signed-off-by: Andrew Morton
Si
From: Heikki Krogerus
This fixes NULL pointer dereference when the primary fwnode handle
does not exist, for example with PCI devices that do not have ACPI
companion.
Signed-off-by: Heikki Krogerus
Signed-off-by: Andy Shevchenko
Signed-off-by: Rafael J. Wysocki
(cherry picked from commit 0fb5
From: Andy Shevchenko
The struct fwnode has notion of secondary fwnode. This is supposed to used
as fallback if the primary firmware interface (DT, ACPI) does not have the
property in question.
However, the current implementation never checks the secondary node which
prevents one to add default
From: Mika Westerberg
It is convenient if the property set associated with the device secondary
firmware node is a copy of the original. This allows passing property set
from a stack for example for devices created dynamically. This also ties
the property set lifetime to the associated device.
B
From: Andy Shevchenko
We may save a lot of lines of code and space by keeping single values inside
the struct property_entry. Refactor the implementation to do so.
Signed-off-by: Andy Shevchenko
Signed-off-by: Rafael J. Wysocki
(cherry picked from commit 66586baba56679baa2da1a10a96ccf15b1e96b9
From: Mika Westerberg
Sometimes it is useful to be able to extract an index of certain string
value from an array of strings. A typical use case is to give a name to a
DMA channel, PWM, clock and so on.
Provide an implementation using unified device property accessors that
follows of_property_ma
From: Heikki Krogerus
Marcos for easier creation of build-in property entries.
Signed-off-by: Heikki Krogerus
Signed-off-by: Andy Shevchenko
Signed-off-by: Rafael J. Wysocki
(cherry picked from commit a85f420475334caed12b057ddcaa0b58e0b1ebb7)
Signed-off-by: Voon, Weifeng
---
include/linux/p
From: Andy Shevchenko
There is no functional change.
Signed-off-by: Andy Shevchenko
Signed-off-by: Rafael J. Wysocki
(cherry picked from commit 1d656fb757c17e48a8a01bd576d14918701ba55c)
Signed-off-by: Voon, Weifeng
---
drivers/base/property.c | 28 ++--
include/linux
From: Andy Shevchenko
To be in align with the rest of fwnode types we rename the built-in property
set ones, i.e.
is_pset() -> is_pset_node()
to_pset() -> to_pset_node()
There is no functional change.
Signed-off-by: Andy Shevchenko
Signed-off-by: Rafael J. Wysocki
(cherry pick
From: Andy Shevchenko
Instead of using the type and nval fields we will use length (in bytes) of the
value. The sanity check is done in the accessors.
The built-in property accessors are split in the same way such as device tree.
Signed-off-by: Andy Shevchenko
Signed-off-by: Rafael J. Wysocki
From: "Voon, Weifeng"
More "device property" patches needed to backport for
Apollo Lake/Broxton.
This patches are from mainline and can only be apply after the previous
patch title:"device property : Backport device property patches to 4.1"
goes into the standard/base branch.
The patches are ta
From: "Rafael J. Wysocki"
Modify is_acpi_node() to return "true" for ACPI data-only subnodes as
well as for ACPI device objects and change the name of to_acpi_node()
to to_acpi_device_node() so it is clear that it covers ACPI device
objects only. Accordingly, introduce to_acpi_data_node() to cov
From: Andy Shevchenko
The one string as an equivalent to an array of one element. Allow user to read
one string as a plain string.
Signed-off-by: Andy Shevchenko
Reviewed-by: Mika Westerberg
Signed-off-by: Rafael J. Wysocki
(cherry picked from commit 4f73b0654d8a954540d49bb0a300f31663423db9)
From: Andy Shevchenko
Currently the property accessors unconditionally fall back to built-in property
set as a last resort. Make this strict and return an error in case the type of
fwnode is unknown.
This is actually a follow up to the commit 4fa7508e9f1c (device property:
Return -ENXIO if there
From: "Suthikulpanit, Suravee"
This patch implements support for ACPI _CCA object, which is introduced in
ACPIv5.1, can be used for specifying device DMA coherency attribute.
The parsing logic traverses device namespace to parse coherency
information, and stores it in acpi_device_flags. Then use
From: Andy Shevchenko
Obviously in the current place the 'else' keyword is redundant, though it seems
quite correct when we check if nval is in allowed range.
Reattach the condition branch there.
Signed-off-by: Andy Shevchenko
Reviewed-by: Mika Westerberg
Signed-off-by: Rafael J. Wysocki
(ch
From: Alexander Sverdlin
Commit 8a0662d9 introduced of_node and acpi_node symbols in global namespace
but there were already ~63 of_node local variables or function parameters
(no single acpi_node though, but anyway).
After debugging undefined but used of_node local varible (which turned out
to
From: "Rafael J. Wysocki"
Move the extraction of _DSD properties from acpi_init_properties()
to a separate routine called acpi_extract_properties() to make the
subsequent changes more straightforward.
Signed-off-by: Rafael J. Wysocki
Tested-by: Mika Westerberg
(cherry picked from commit bd8191
From: "Rafael J. Wysocki"
In some cases, the information expressed via device properties is
hierarchical by nature. For example, the properties of a composite
device consisting of multiple semi-dependent components may need
to be represented in the form of a tree of property data sets
correspond
From: Guenter Roeck
Return -ENXIO if device property array access functions don't find
a suitable firmware interface.
This lets drivers decide if they should use available platform data
instead.
Cc: Rafael J. Wysocki
Signed-off-by: Guenter Roeck
Tested-by: Jeremy Linton
Signed-off-by: David
From: "Rafael J. Wysocki"
Use a #defined symbol ACPI_DT_NAMESPACE_HID instead of the PRP0001
string.
Signed-off-by: Rafael J. Wysocki
Acked-by: Mika Westerberg
Reviewed-by: Hanjun Guo
(cherry picked from commit ee89209402e0b9a733169901063afdf0ae7909db)
Signed-off-by: Voon, Weifeng
---
drive
From: "Rafael J. Wysocki"
Refine the check for the presence of the "compatible" property
if the PRP0001 device ID is present in the device's list of
ACPI/PNP IDs to also print the message if _DSD is missing
entirely or the format of it is incorrect.
One special case to take into accout is that t
From: "Voon, Weifeng"
The patch is the "device property" backport for Apollo Lake/Broxton.
Patch "device property: always check for fwnode type" is from mainline.
The other patches is to make sure the patch apply cleanly.
The patches are targeted for linux-yocto-4.1 on standard/base branch.
Al
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