This adds support for EPSON TOYOCOM RTC-7301SF/DG which has parallel
interface compatible with SRAM.

This driver supports basic clock, calendar and alarm functionality.

Tested with Microblaze linux running on Artix7 FPGA board with my own
custom IP for RTC-7301.
Signed-off-by: NAkinobu Mita <akinobu.mita@gmail.com>
Acked-by: NRob Herring <robh@kernel.org>
Signed-off-by: NAlexandre Belloni <alexandre.belloni@free-electrons.com>

This patch enables ACPI support for rtc-ds1307 driver.
Signed-off-by: NTin Huynh <tnhuynh@apm.com>
Signed-off-by: NAlexandre Belloni <alexandre.belloni@free-electrons.com>

Fix a typo
Signed-off-by: NMartin Kaiser <martin@kaiser.cx>
Signed-off-by: NAlexandre Belloni <alexandre.belloni@free-electrons.com>

WARN_ON does both these things in one statement.
Using a better pattern with WARN_ON().
Signed-off-by: NSrikant Ritolia <s.ritolia@samsung.com>
Signed-off-by: NAlexandre Belloni <alexandre.belloni@free-electrons.com>

Since there are no platform based users and all users
of this code are TI OMAP-based which is DT only, it makes
sense to remove unused code.
Signed-off-by: NNicolae Rosia <Nicolae_Rosia@mentor.com>
Tested-by: NTony Lindgren <tony@atomide.com>
Signed-off-by: NAlexandre Belloni <alexandre.belloni@free-electrons.com>

The current code uses static variables which prevent
the use of multiple rtc twl instances.
We also make it clear that this driver supports only
TWL4030 and TWL6030 classes.
Signed-off-by: NNicolae Rosia <Nicolae_Rosia@mentor.com>
Tested-by: NTony Lindgren <tony@atomide.com>
Signed-off-by: NAlexandre Belloni <alexandre.belloni@free-electrons.com>

s/buillt/built/g
Signed-off-by: NAlexandre Belloni <alexandre.belloni@free-electrons.com>

Since the driver is now calling machine_halt() that is not exported, it has
to be built in the kernel. Building it as a module will fail at linking
time.
Signed-off-by: NAlexandre Belloni <alexandre.belloni@free-electrons.com>

jz4740_rtc_poweroff() is only called from the driver, stop exporting it.
Signed-off-by: NAlexandre Belloni <alexandre.belloni@free-electrons.com>

max8907, max77686 and s5m RTC drivers can be compile tested to increase
build coverage.  The s5m-rtc uses REGMAP_IRQ so add this as explicit
dependency.
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: NAlexandre Belloni <alexandre.belloni@free-electrons.com>

The 'system-power-controller' singleton entry can be used in the
devicetree node of the jz4740-rtc driver to specify that the driver is
granted the right to power off the system through the registers of the
RTC unit.

See the documentation for more details:
Documentation/devicetree/bindings/rtc/ingenic,jz4740-rtc.txt
Signed-off-by: NPaul Cercueil <paul@crapouillou.net>
Acked-by: NMaarten ter Huurne <maarten@treewalker.org>
Signed-off-by: NAlexandre Belloni <alexandre.belloni@free-electrons.com>

See
Documentation/devicetree/bindings/rtc/ingenic,jz4740-rtc.txt
for a description of the bindings.
Signed-off-by: NPaul Cercueil <paul@crapouillou.net>
Acked-by: NMaarten ter Huurne <maarten@treewalker.org>
Signed-off-by: NAlexandre Belloni <alexandre.belloni@free-electrons.com>

The RTC unit present in the JZ4780 works mostly the same as the one in
the JZ4740. The major difference is that register writes need to be
explicitly enabled, by writing a magic code (0xA55A) to a "write
enable" register before each access.
Signed-off-by: NPaul Cercueil <paul@crapouillou.net>
Acked-by: NMaarten ter Huurne <maarten@treewalker.org>
Signed-off-by: NAlexandre Belloni <alexandre.belloni@free-electrons.com>

The Kconfig currently controlling compilation of this code is:

drivers/rtc/Kconfig:config RTC_DRV_SUN4V
drivers/rtc/Kconfig:    bool "SUN4V Hypervisor RTC"

...meaning that it currently is not being built as a module by anyone.

Lets remove the couple traces of modular infrastructure use, so that
when reading the driver there is no doubt it is builtin-only.

We delete the MODULE_LICENSE tag etc. since all that information
was (or is now) contained at the top of the file in the comments.

Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: sparclinux@vger.kernel.org
Cc: rtc-linux@googlegroups.com
Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: NAlexandre Belloni <alexandre.belloni@free-electrons.com>

The Kconfig currently controlling compilation of this code is:

drivers/rtc/Kconfig:config RTC_DRV_STARFIRE
drivers/rtc/Kconfig:    bool "Starfire RTC"

...meaning that it currently is not being built as a module by anyone.

Lets remove the couple traces of modular infrastructure use, so that
when reading the driver there is no doubt it is builtin-only.

We delete the MODULE_LICENSE tag etc. since all that information
was (or is now) contained at the top of the file in the comments.

Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: sparclinux@vger.kernel.org
Cc: rtc-linux@googlegroups.com
Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: NAlexandre Belloni <alexandre.belloni@free-electrons.com>

The Kconfig currently controlling compilation of this code is:

drivers/rtc/Kconfig:config RTC_LIB
drivers/rtc/Kconfig:    bool

...meaning that it currently is not being built as a module by anyone.

Lets remove the couple traces of modular infrastructure use, so that
when reading the driver there is no doubt it is builtin-only.

We delete the MODULE_LICENSE tag since all that information
is already contained at the top of the file in the comments.

We don't replace module.h with init.h since the file doesn't need that.
However we do add export.h since the file uses EXPORT_SYMBOL.

Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Cc: rtc-linux@googlegroups.com
Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: NAlexandre Belloni <alexandre.belloni@free-electrons.com>

Add a sanity check to see if chip is present. If we can not communicate
with the chip there is no point in registering a RTC device.
Signed-off-by: NMirza Krak <mirza.krak@hostmobility.com>
Signed-off-by: NAlexandre Belloni <alexandre.belloni@free-electrons.com>

That header has been gone for a while.  I've fixed up the Kconfig
comment, but the one in rtc-cmos.c doesn't make any sense to me
even looking at its history.
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NAlexandre Belloni <alexandre.belloni@free-electrons.com>

Some platforms allows to specify the month and day of the month in
which an alarm should go off, some others the day of the month and
some others just the time.

Currently any given value is accepted by the driver and only the
supported fields are used to program the hardware. As consequence,
alarms are potentially programmed to go off in the wrong moment.

Fix this by rejecting any unsupported value.
Signed-off-by: NGabriele Mazzotta <gabriele.mzt@gmail.com>
Signed-off-by: NAlexandre Belloni <alexandre.belloni@free-electrons.com>

Add error handling support.
Register ib device with ib stack.
Signed-off-by: NRajesh Borundia <rajesh.borundia@cavium.com>
Signed-off-by: NRam Amrani <Ram.Amrani@cavium.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

Add support for GSI over light L2.
Signed-off-by: NRajesh Borundia <rajesh.borundia@cavium.com>
Signed-off-by: NRam Amrani <Ram.Amrani@cavium.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

Add light L2 interface for RoCE.
Signed-off-by: NRajesh Borundia <rajesh.borundia@cavium.com>
Signed-off-by: NRam Amrani <Ram.Amrani@cavium.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

Implement fastpath verbs like ib_send_post, ib_post_recv and ib_poll_cq.
Signed-off-by: NRajesh Borundia <rajesh.borundia@cavium.com>
Signed-off-by: NRam Amrani <Ram.Amrani@cavium.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

Add support for user, dma and memory regions registration.
Signed-off-by: NRajesh Borundia <rajesh.borundia@cavium.com>
Signed-off-by: NRam Amrani <Ram.Amrani@cavium.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

Add support for Queue Pair verbs which adds, deletes,
modifies and queries Queue Pairs.
Signed-off-by: NRajesh Borundia <rajesh.borundia@cavium.com>
Signed-off-by: NRam Amrani <Ram.Amrani@cavium.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

Add support for protection domain and completion queue verbs.
Signed-off-by: NRajesh Borundia <rajesh.borundia@cavium.com>
Signed-off-by: NRam Amrani <Ram.Amrani@cavium.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

Add support for ucontext, query port, add and del gid verbs.
Signed-off-by: NRajesh Borundia <rajesh.borundia@cavium.com>
Signed-off-by: NRam Amrani <Ram.Amrani@cavium.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

Allocate and setup RoCE resources, interrupts and completion queues.
Adds device attributes.
Signed-off-by: NRajesh Borundia <rajesh.borundia@cavium.com>
Signed-off-by: NRam Amrani <Ram.Amrani@cavium.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

Adds a skeletal implementation of the qed* RoCE driver -
basically the ability to communicate with the qede driver and
receive notifications from it regarding various init/exit events.
Signed-off-by: NRajesh Borundia <rajesh.borundia@cavium.com>
Signed-off-by: NRam Amrani <Ram.Amrani@cavium.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

The desired_perf is an abstract performance number. Its value should
be in the range of [lowest perf, highest perf] of CPPC.
The correct calculation is
  desired_perf = freq * cppc_highest_perf / cppc_dmi_max_khz

And cppc_cpufreq_set_target() returns if desired_perf is exactly
the same with the old perf.
Signed-off-by: NHoan Tran <hotran@apm.com>
Reviewed-by: NPrashanth Prakash <pprakash@codeaurora.org>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

The dev parameter passed to __axienet_device_reset() is not used inside
the function, so remove it.
Signed-off-by: NTobias Klauser <tklauser@distanz.ch>
Reviewed-by: NMichal Simek <michal.simek@xilinx.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This is supposed to loop 1000 times and then give up.  The problem is
it's a post-op and after the loop we test if "loop" is zero when really
it would be -1.  Fix this by making it a pre-op.

Fixes: 1b7c55c4 ("liquidio: CN23XX queue manipulation")
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The phy_start() is used to indicate the PHY is now ready to do its
work. The state is changed, normally to PHY_UP which means that both
the MAC and the PHY are ready.

If the phy driver is using polling, when the next poll happens, the
state machine notices the PHY is now in PHY_UP, and kicks off
auto-negotiation, if needed.

If however, the PHY is using interrupts, there is no polling. The phy
is stuck in PHY_UP until the next interrupt comes along. And there is
no reason for the PHY to interrupt.

Have phy_start() schedule the state machine to run, which both speeds
up the polling use case, and makes the interrupt use case actually
work.

This problems exists whenever there is a state change which will not
cause an interrupt. Trigger the state machine in these cases,
e.g. phy_error().
Signed-off-by: NAndrew Lunn <andrew@lunn.ch>
Cc: Kyle Roeschley <kyle.roeschley@ni.com>
Tested-by: NKyle Roeschley <kyle.roeschley@ni.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Based upon v2 of Stephen's patch.
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Wiht the latest rework of the xen-netback driver, we get a warning
on ARM about the types passed into min():

drivers/net/xen-netback/rx.c: In function 'xenvif_rx_next_chunk':
include/linux/kernel.h:739:16: error: comparison of distinct pointer types lacks a cast [-Werror]

The reason is that XEN_PAGE_SIZE is not size_t here. There
is no actual bug, and we can easily avoid the warning using the
min_t() macro instead of min().

Fixes: eb1723a2 ("xen-netback: refactor guest rx")
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Acked-by: NPaul Durrant <paul.durrant@citrix.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch fixes a problem when propagated the
failure of ptp_clock_register to open function.
Signed-off-by: NGiuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Alexandre TORGUE <alexandre.torgue@st.com>
Cc: Rayagond Kokatanur <rayagond@vayavyalabs.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The gmac 4.x version has not extended descriptors
(that are available on 3.x instead of).
While initializing the PTP module, the advanced PTP was
enabled in case of extended descriptors. This cannot be
applied for 4.x version where only the hardware capability
register has to show if the feature is present.
Patch also adds some extra netdev_(debug/inof) to better
dump the configuration.
Signed-off-by: NGiuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Alexandre TORGUE <alexandre.torgue@st.com>
Cc: Rayagond Kokatanur <rayagond@vayavyalabs.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The definition of qed_get_rdma_ops() is not a prototype unless
we add 'void' here, as indicated by this W=1 warning:

drivers/net/ethernet/qlogic/qed/qed_roce.c: In function ‘qed_get_rdma_ops’:
drivers/net/ethernet/qlogic/qed/qed_roce.c:2950:28: error: old-style function definition [-Werror=old-style-definition]

Fixes: abd49676 ("qed: Add RoCE ll2 & GSI support")
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Acked-by: NYuval Mintz <Yuval.Mintz@caviumnetworks.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The software calculation of UDP checksum in Netvsc driver was
only handling IPv4 case. By using skb_checksum_help() instead
all protocols can be handled. Rearrange code to eliminate goto
and look like other drivers.

This is a temporary solution; recent versions of Window Server etc
do support UDP checksum offload, just need to do the appropriate negotiation
with host to validate before using. This will be done in later patch.

Please queue this for -stable as well.
Signed-off-by: NStephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

If a VIF has been ready for rx_stall_timeout (60s by default) and an
Rx ring is drained of all requests an Rx stall will be incorrectly
detected.  When this occurs and the guest Rx queue is empty, the Rx
ring's event index will not be set and the frontend will not raise an
event when new requests are placed on the ring, permanently stalling
the VIF.

This is a regression introduced by eb1723a2 (xen-netback:
refactor guest rx).

Fix this by reinstating the setting of queue->last_rx_time when
placing a packet onto the guest Rx ring.
Signed-off-by: NDavid Vrabel <david.vrabel@citrix.com>
Reviewed-by: NPaul Durrant <paul.durrant@citrix.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>