Commit Graph

1278 Commits

Author SHA1 Message Date
Alan Cox 54efdfeb49 i2c_intel_mid: Fix slash in sysfs name
This gets caught by the new sanity check code. Instead of the slash use a
different symbol. This was originally found by Major Lee who proposed a
rather more complex patch which changed the name according to the chip
type.

On the basis that we are in a late -rc and making Linus grumpy isn't always
a good idea (however fun) this is a simple alternative.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-12-14 18:46:01 -08:00
Arnaud Lacombe c38bd4ffc7 i2c/algos: convert Kconfig to use the menu's `visible' keyword
Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-11-22 11:27:35 -02:00
Arnaud Lacombe dfc518dd6b Revert "i2c: Fix Kconfig dependencies"
This reverts commit 0a57274ea0.

Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-11-22 11:27:33 -02:00
Jean Delvare 2236baa75f i2c: Sanity checks on adapter registration
Make sure I2C adapters being registered have the required struct
fields set. If they don't, problems will happen later.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2010-11-15 22:40:38 +01:00
Jean Delvare e1e18ee1cb i2c: Mark i2c_adapter.id as deprecated
It's about time to make it clear that i2c_adapter.id is deprecated.
Hopefully this will remind the last user to move over to a different
strategy.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Jarod Wilson <jarod@redhat.com>
Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Acked-by: Hans Verkuil <hverkuil@xs4all.nl>
2010-11-15 22:40:38 +01:00
David Woodhouse 55fee8d7f7 i2c-i801: Add PCI idents for Patsburg 'IDF' SMBus controllers
These are the extra 'Integrated Device Function' SMBus controllers found
on the Patsburg chipset. Mention the absence of slave mode support.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2010-10-31 21:07:00 +01:00
David Woodhouse 0cd96eb0a7 i2c-i801: Handle multiple instances instead of keeping global state
It's poor form to keep driver state in global variables rather than
per-instance. It never really mattered in practice when there was only
one controller on the chipset, but the latest chipsets do have more
than one controller, so now we care.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2010-10-31 21:06:59 +01:00
Seth Heasley e30d9859cf i2c-i801: Add Intel Patsburg device ID
Add support for the Intel Patsburg PCH SMBus Controller.

Signed-off-by: Seth Heasley <seth.heasley@intel.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2010-10-31 21:06:59 +01:00
Linus Torvalds 44234d0c46 Merge branch 'for-2637/i2c-all' of git://git.fluff.org/bjdooks/linux
* 'for-2637/i2c-all' of git://git.fluff.org/bjdooks/linux:
  i2c-intel-mid: Driver depends on PCI
  i2c-intel-mid: support for Moorestown and Medfield platform
  i2c-nomadik: fixup bus delays
  i2c-nomadik: support smbus emulation
  i2c-nomadik: dynamic clocking
  i2c-nomadik: documentation fixes
  i2c-s3c2410: Enable i2c clock only when doing some transfert
2010-10-29 16:15:57 -07:00
Randy Dunlap 9cc11dee3d i2c-intel-mid: Driver depends on PCI
i2c-intel-mid driver uses PCI data structs and interfaces,
so it should depend on PCI.  Fixes these build errors:

drivers/i2c/busses/i2c-intel-mid.c:977: error: implicit declaration of function 'pci_request_region'
drivers/i2c/busses/i2c-intel-mid.c:1077: error: implicit declaration of function 'pci_release_region'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Ba Zheng <zheng.ba@intel.com>
Cc: Jean Delvare <khali@linux-fr.org>
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: linux-i2c@vger.kernel.org
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-10-29 23:51:28 +01:00
Linus Torvalds e9f29c9a56 Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6
* 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: (27 commits)
  x86: allocate space within a region top-down
  x86: update iomem_resource end based on CPU physical address capabilities
  x86/PCI: allocate space from the end of a region, not the beginning
  PCI: allocate bus resources from the top down
  resources: support allocating space within a region from the top down
  resources: handle overflow when aligning start of available area
  resources: ensure callback doesn't allocate outside available space
  resources: factor out resource_clip() to simplify find_resource()
  resources: add a default alignf to simplify find_resource()
  x86/PCI: MMCONFIG: fix region end calculation
  PCI: Add support for polling PME state on suspended legacy PCI devices
  PCI: Export some PCI PM functionality
  PCI: fix message typo
  PCI: log vendor/device ID always
  PCI: update Intel chipset names and defines
  PCI: use new ccflags variable in Makefile
  PCI: add PCI_MSIX_TABLE/PBA defines
  PCI: add PCI vendor id for STmicroelectronics
  x86/PCI: irq and pci_ids patch for Intel Patsburg DeviceIDs
  PCI: OLPC: Only enable PCI configuration type override on XO-1
  ...
2010-10-28 11:59:52 -07:00
Ben Dooks e0b11c3c38 Merge branch 'for-2637/i2c/samsung' into next-i2c 2010-10-28 10:07:14 +01:00
Ben Dooks 3751638549 Merge branch 'for-2637/i2c/i2c-nomadik' into next-i2c 2010-10-28 10:07:08 +01:00
Alan Cox aa62f85d0c i2c-intel-mid: support for Moorestown and Medfield platform
(Updated to address Ben's comments. With regard to the message segment
 restriction it's not something we hit on the actual platform so while
 I will investigate that further I don't think its a blocker to submission.
 At worst its a spot over-restrictive)

From: Wen Wang <wen.w.wang@intel.com>

Initial release of the driver. Updated and verified on hardware.

Cleaned up as follows

Alan Cox:
   Squash down the switches into tables, and use the PCI ident field. We
   could perhaps take this further and put the platform and port number into
   this.
   uint32t -> u32
   bracketing of case statements
   spacing and '!' usage
   Check the speed (which is now 0/1/2) is valid and ignore otherwise.
   Fix remaining problems/suggestions from Jean's review
   Fix items from Ben's review

Arjan van de Ven:
   Initial power management hooks

Yong Wang <youg.y.wang@intel.com>:
   Shared IRQ support

Wen Wang <wen.w.wang@intel.com>:
   D3 support
   Fixes for OCT test runs
   Interrupt optimisations

Hong Liu <hong.liu@intel.com>
   The runtime PM code is working on the wrong device (i2c_adapter->dev).
   The correct one should be pci_dev->dev. This breaks attached i2c
   slave devices with runtime PM enabled. Slave device needs to runtime
   resume parent device before runtime resuming itself, but we always get
   error since we don't have pm_runtime callback for i2c_adapter->dev.

Bin Yang <bin.yang@intel.com>:
   Update speed table

Saadi Maalem <saadi.maalem@intel.com>:
   Clear all interrupts in the hardware init

Celine Chotard <celinex.chotard@intel.com>:
   Correct ordering of clear/disable of IRQs

Signed-off-by: Wen Wang <wen.w.wang@intel.com>
Signed-off-by: Yong Wang <yong.y.wang@intel.com>
Signed-off-by: Hong Liu <hong.liu@intel.com>
Signed-off-by: Bin Yang <bin.yang@intel.com>
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-10-28 10:05:08 +01:00
Dzianis Kahanovich 87acf5ad87 NULL-terminate all pci_device_id tables
NULL-terminating pci_device_id in pch_dma.c and scx200_acb.c
for appying MODULE_DEVICE_TABLE (to publish modalias-es).

Signed-off-by: Dzianis Kahanovich <mahatma@eu.by>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2010-10-27 20:33:05 +10:30
Linus Torvalds 1dfd166e93 Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (110 commits)
  sh: i2c-sh7760: Replase from ctrl_* to __raw_*
  sh: clkfwk: Shuffle around to match the intc split up.
  sh: clkfwk: modify for_each_frequency end condition
  sh: fix clk_get() error handling
  sh: clkfwk: Fix fault in frequency iterator.
  sh: clkfwk: Add a helper for rate rounding by divisor ranges.
  sh: clkfwk: Abstract rate rounding helper.
  sh: clkfwk: support clock remapping.
  sh: pci: Convert to upper/lower_32_bits() helpers.
  sh: mach-sdk7786: Add support for the FPGA SRAM.
  sh: Provide a generic SRAM pool for tiny memories.
  sh: pci: Support secondary FPGA-driven PCIe clocks on SDK7786.
  sh: pci: Support slot 4 routing on SDK7786.
  sh: Fix up PMB locking.
  sh: mach-sdk7786: Add support for fpga gpios.
  sh: use pr_fmt for clock framework, too.
  sh: remove name and id from struct clk
  sh: free-without-alloc fix for sh_mobile_lcdcfb
  sh: perf: Set up perf_max_events.
  sh: perf: Support SH-X3 hardware counters.
  ...

Fix up trivial conflicts (perf_max_events got removed) in arch/sh/kernel/perf_event.c
2010-10-25 07:51:49 -07:00
Nobuhiro Iwamatsu 8df399018d sh: i2c-sh7760: Replase from ctrl_* to __raw_*
ctrl_* is deprecated. We should to use __raw_*.

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-10-25 10:44:19 +09:00
Linus Walleij f868fc355a i2c-nomadik: fixup bus delays
We were missing a transfer delay in one execution path leading to
hangs and the bus timeout was too low leading to errors under
stress tests.

Acked-by: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Signed-off-by: Sundar R Iyer <sundar.iyer@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-10-25 02:40:48 +01:00
Linus Walleij 5680bc6ec7 i2c-nomadik: support smbus emulation
We can do smbus emulation so flag this and drop the duplicate
flags implied from smbus emulation.

Acked-by: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Signed-off-by: Sundar R Iyer <sundar.iyer@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-10-25 02:40:43 +01:00
Linus Walleij 8ef4f4e4af i2c-nomadik: dynamic clocking
This makes sure the Nomadik I2C bus driver silicon is only clocked
when really needed, saving some microamps here and there when
there is no I2C traffic.

Acked-by: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Signed-off-by: Sundar R Iyer <sundar.iyer@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-10-25 02:40:38 +01:00
Linus Walleij 1804edd15c i2c-nomadik: documentation fixes
This fixes some kerneldoc and assorted documenatation in the
Nomadik I2C driver without semantic impact.

Acked-by: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Signed-off-by: Sundar R Iyer <sundar.iyer@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2010-10-25 02:40:32 +01:00
Jean Delvare bf5d95c826 i2c-viapro: Don't log nacks
Transactions not acked can happen every now and then, in particular
during device detection, and various transaction types can be used for
this purpose. So stop logging this event, except when debugging is
enabled. This is what other similar drivers (e.g. i2c-i801 or
i2c-piix4) do.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2010-10-24 18:16:59 +02:00
Guenter Roeck db79f2a1d2 i2c/pca954x: Remove __devinit and __devexit from probe and remove functions
The underlying I2C adapter may or may not be present when this driver
gets initialized, and may disappear later, so there is no safe time at
which the probe and remove functions can be discarded.

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2010-10-24 18:16:59 +02:00
Guenter Roeck ae63b13bbe i2c/mux: Driver for PCA9541 I2C Master Selector
This patch adds support for PCA9541, an I2C Bus Master Selector.
The driver is modeled as single channel I2C Multiplexer to be able to utilize
the I2C multiplexer framework.

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Reviewed-by: Tom Grennan <tom.grennan@ericsson.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
2010-10-24 18:16:58 +02:00
Jean Delvare 51b54ba9bb i2c: Optimize function i2c_detect()
Check the class flags before allocating the temporary i2c_client
structure, to avoid allocating it when we don't need it.

Also optimize the inner loop a bit.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Jacob Pan <jacob.jun.pan@linux.intel.com>
2010-10-24 18:16:58 +02:00