linux-stable.git/drivers/ptp, branch v3.15.2

ptp: fix kconfig dependency warnings

2014-05-12T04:27:26+00:00

Fix kconfig warnings:

PTP_1588_CLOCK selects NET_PTP_CLASSIFY, which depends on NET,
so PTP_1588_CLOCK should also depend on NET.

PTP_1588_CLOCK_PCH selects PTP_1588_CLOCK so the former should
depend on NET.

warning: (IXP4XX_ETH && PTP_1588_CLOCK) selects NET_PTP_CLASSIFY which has unmet direct dependencies (NET)

warning: (SFC && TILE_NET && BFIN_MAC_USE_HWSTAMP && TIGON3 && FEC && E1000E && IGB && IXGBE && I40E && MLX4_EN && SXGBE_ETH && STMMAC_ETH && TI_CPTS && PTP_1588_CLOCK_GIANFAR && PTP_1588_CLOCK_IXP46X && DP83640_PHY && PTP_1588_CLOCK_PCH) selects PTP_1588_CLOCK which has unmet direct dependencies (NET)
[This warning is caused by the new 'depends on NET' in PTP_1588_CLOCK.]

Signed-off-by: Randy Dunlap 
Acked-by: Richard Cochran 
Signed-off-by: David S. Miller

net: ptp: move PTP classifier in its own file

2014-04-01T20:43:18+00:00

This commit fixes a build error reported by Fengguang, that is
triggered when CONFIG_NETWORK_PHY_TIMESTAMPING is not set:

  ERROR: "ptp_classify_raw" [drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe.ko] undefined!

The fix is to introduce its own file for the PTP BPF classifier,
so that PTP_1588_CLOCK and/or NETWORK_PHY_TIMESTAMPING can select
it independently from each other. IXP4xx driver on ARM needs to
select it as well since it does not seem to select PTP_1588_CLOCK
or similar that would pull it in automatically.

This also allows for hiding all of the internals of the BPF PTP
program inside that file, and only exporting relevant API bits
to drivers.

This patch also adds a kdoc documentation of ptp_classify_raw()
API to make it clear that it can return PTP_CLASS_* defines. Also,
the BPF program has been translated into bpf_asm code, so that it
can be more easily read and altered (extensively documented in [1]).

In the kernel tree under tools/net/ we have bpf_asm and bpf_dbg
tools, so the commented program can simply be translated via
`./bpf_asm -c prog` where prog is a file that contains the
commented code. This makes it easily readable/verifiable and when
there's a need to change something, jump offsets etc do not need
to be replaced manually which can be very error prone. Instead,
a newly translated version via bpf_asm can simply replace the old
code. I have checked opcode diffs before/after and it's the very
same filter.

  [1] Documentation/networking/filter.txt

Fixes: 164d8c666521 ("net: ptp: do not reimplement PTP/BPF classifier")
Reported-by: Fengguang Wu 
Signed-off-by: Daniel Borkmann 
Signed-off-by: Alexei Starovoitov 
Cc: Richard Cochran 
Cc: Jiri Benc 
Acked-by: Richard Cochran 
Signed-off-by: David S. Miller

ptp: drivers: set the number of programmable pins.

2014-03-21T18:21:14+00:00

This patch updates the many PTP Hardware Clock drivers with the
newly introduced field that advertises the number of programmable
pins. Some of these devices do have programmable pins, but the
implementation will have to wait for follow on patches.

Signed-off-by: Richard Cochran 
Acked-by: Jeff Kirsher 
Signed-off-by: David S. Miller

ptp: expose the programmable pins via sysfs

2014-03-21T18:21:14+00:00

This patch adds the sysfs hooks needed in order to get and set the
programmable pin settings.

Signed-off-by: Richard Cochran 
Signed-off-by: David S. Miller

ptp: introduce programmable pins.

2014-03-21T18:21:13+00:00

This patch adds a pair of new ioctls to the PTP Hardware Clock device
interface. Using the ioctls, user space programs can query each pin to
find out its current function and also reprogram a different function
if desired.

Signed-off-by: Richard Cochran 
Signed-off-by: David S. Miller

ptp_pch: Add dependency on HAS_IOMEM

2014-01-15T22:51:22+00:00

On archs like S390 or um this driver cannot build nor work.
Make it depend on HAS_IOMEM to bypass build failures.

drivers/ptp/ptp_pch.c: In function ‘pch_remove’:
drivers/ptp/ptp_pch.c:571:3: error: implicit declaration of function ‘iounmap’ [-Werror=implicit-function-declaration]
drivers/ptp/ptp_pch.c: In function ‘pch_probe’:
drivers/ptp/ptp_pch.c:621:2: error: implicit declaration of function ‘ioremap’ [-Werror=implicit-function-declaration]

Signed-off-by: Richard Weinberger 
Signed-off-by: David S. Miller

ptp: switch to use gpiolib

2013-09-27T12:15:27+00:00

This platform supports gpiolib, so remove the custom API use
and replace with calls to gpiolib. Also request the GPIO before
starting to use it.

Cc: Imre Kaloz 
Cc: Alexandre Courbot 
Cc: netdev@vger.kernel.org
Acked-by: Richard Cochran 
Acked-by: Krzysztof Halasa 
Signed-off-by: Linus Walleij

PTP: convert class code to use dev_groups

2013-07-27T01:05:17+00:00

The dev_attrs field of struct class is going away soon, dev_groups
should be used instead.  This converts the ptp class code to use the
correct field.

Acked-by: Richard Cochran 
Signed-off-by: Greg Kroah-Hartman

build some drivers only when compile-testing

2013-06-24T23:41:32+00:00

Some drivers can be built on more platforms than they run on. This is
a burden for users and distributors who package a kernel. They have to
manually deselect some (for them useless) drivers when updating their
configs via oldconfig. And yet, sometimes it is even impossible to
disable the drivers without patching the kernel.

Introduce a new config option COMPILE_TEST and make all those drivers
to depend on the platform they run on, or on the COMPILE_TEST option.
Now, when users/distributors choose COMPILE_TEST=n they will not have
the drivers in their allmodconfig setups, but developers still can
compile-test them with COMPILE_TEST=y.

Now the drivers where we use this new option:
* PTP_1588_CLOCK_PCH: The PCH EG20T is only compatible with Intel Atom
  processors so it should depend on x86.
* FB_GEODE: Geode is 32-bit only so only enable it for X86_32.
* USB_CHIPIDEA_IMX: The OF_DEVICE dependency will be met on powerpc
  systems -- which do not actually support the hardware via that
  method.
* INTEL_MID_PTI: It is specific to the Penwell type of Intel Atom
  device.

[v2]
* remove EXPERT dependency

[gregkh - remove chipidea portion, as it's incorrect, and also doesn't
 apply to my driver-core tree]

Signed-off-by: Jiri Slaby 
Cc: Andrew Morton 
Cc: Linus Torvalds 
Cc: Jeff Mahoney 
Cc: Alexander Shishkin 
Cc: linux-usb@vger.kernel.org
Cc: Florian Tobias Schandinat 
Cc: linux-geode@lists.infradead.org
Cc: linux-fbdev@vger.kernel.org
Cc: Richard Cochran 
Cc: netdev@vger.kernel.org
Cc: Ben Hutchings 
Cc: "Keller, Jacob E" 
Signed-off-by: Greg Kroah-Hartman

ptp_pch: fix error handling in pch_probe()

2013-05-26T04:24:15+00:00

Fix to release resources when ptp_clock_register() fail instead
of return error code directly.

Signed-off-by: Wei Yongjun 
Signed-off-by: David S. Miller