| Commit message (Collapse) | Author | Age | Files | Lines |
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Move init_completion to just before i2c transfer.
http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=3385
Signed-off-by: Hans Schillstrom <hans.schillstrom@shlsys.com>
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
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Simply use "depends on BLACKFIN" (which is technically correct) and just
document which machines have the device.
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
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maintained in the scm's log
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
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information
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
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Blackfin TWI controller hardware pin should be requested from GPIO port controller
Before BF54x, there is no need to do this. But as long as BF54x and BF52x
are supported by this generic driver, the missing pin mux operation should be
added.
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
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controllers
- Dynamic alloc the resource of TWI driver data according to board information
- TWI register read/write accessor based on dynamic regs_base
- Support TWI0/TWI1 for BF54x
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
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master xfer operation
- Create a new mode TWI_I2C_MODE_REPEAT.
- No change to smbus operation.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
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Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
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__FUNCTION__ is gcc-specific, use __func__.
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
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Driver for I2C interfaces in master mode on SH7760.
Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
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Split the handling of the I2C_RDWR and I2C_SMBUS ioctls to their own
functions. This limits the stack usage, saves one level of indentation
and makes the code more readable.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
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This patch allows the i2c-ibm_iic driver to be built either as an ocp
driver or an of_platform driver. This allows it to run under the powerpc
arch but maintains backward compatibility with the ppc arch.
Signed-off-by: Sean MacLennan <smaclennan@pikatech.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
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Change the log levels based on feedback from linxppc-dev.
Signed-off-by: Sean MacLennan <smaclennan@pikatech.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
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Tested on a blackfin.
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
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The separation between algorithm and adapter was unsharp at places. This was
partly hidden by the fact, that the ISA-driver allowed just one instance and
had all private data in static variables. This patch makes neccessary
preparations to add a platform driver on top of the algorithm, while still
supporting ISA. Note: Due to lack of hardware, the ISA-driver could not be
tested except that it builds.
Concerning the core struct i2c_algo_pca_data:
- A private data field was added, all hardware dependant data may go here.
Similar to other algorithms, now a pointer to this data is passed to the
adapter's functions. In order to make as less changes as possible to the
ISA-driver, it leaves the private data empty and still only uses its static
variables.
- A "reset_chip" function pointer was added; such a functionality must come
from the adapter, not the algorithm.
- use a variable "i2c_clock" instead of a function pointer "get_clock",
allowing for write access to a default in case a wrong value was supplied.
In the algorithm-file:
- move "i2c-pca-algo.h" into "linux/i2c-algo-pca.h"
- now using per_instance timeout values (i2c_adap->timeout)
- error messages specify the device, not only the driver name
- restructure initialization to easily support "i2c_add_numbered_adapter"
- drop "retries" and "own" (i2c address) as they were unused
(The state-machine for I2C-communication was not touched.)
In the ISA-driver:
- adapt to new algorithm
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
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Remove trailing whitespaces to make further patches more readable. Also remove
an unnecessary UTF-char for simplicity ("us" for microseconds is fine enough).
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
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The algorithm drivers are helper drivers that are selected automatically
as needed. There's no point in listing them in the config menu, it can
only confuse users and waste their time.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
IB/ipath: Correct capitalization "IntX" -> "INTx"
IB/ipath: Remove tests of PCI_MSI in ipath_iba7220.c
IB/ipath: Remove dependency on PCI_MSI || HT_IRQ
IB/ipath: Build IBA7220 code unconditionally
IB/ipath: Remove reference to dev->class_dev
IB/ipath: Fix module parameter description for disable_sma
RDMA/nes: Remove unneeded function declarations
Fix up conflict in drivers/infiniband/hw/ipath/ipath_verbs.c (by picking
the solution from the infiniband branch)
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Match what the PCI specification uses.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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The PCI MSI interface is stubbed out properly so that all the
functions just return failure if PCI_MSI=n, so there's no reason to
have "#ifdef CONFIG_PCI_MSI" blocks in ipath_iba7220.c.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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Before IBA7220 support was added, the ipath driver didn't support any
hardware unless PCI_MSI and/or HT_IRQ was enabled. However, the
IBA7220 can generate INTx interrupts, so it makes sense to allow the
driver to be build even if PCI_MSI=n and HT_IRQ=n.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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The new IBA7220 code added a call to ipath_init_iba7220_funcs() that
is compiled unconditionally, but only built the IBA7220 code if
PCI_MSI is enabled. Fix this by building the IBA7220 file
unconditonally.
This fixes build breakage when PCI_MSI=n, HT_IRQ=y and
INFINIBAND_IPATH=y reported by Ingo Molnar <mingo@elte.hu>:
drivers/built-in.o: In function `ipath_init_one':
ipath_driver.c:(.devinit.text+0x1e5bc): undefined reference to `ipath_init_iba7220_funcs'
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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Commit 124b4dcb ("IB/ipath: add calls to new 7220 code and enable in
build") inadvertently added core to set dev->class_dev.dev back into
ib_ipath. This is completely redundant since commit 1912ffbb ("IB: Set
class_dev->dev in core for nice device symlink"), which removed
class_dev setting from low-level drivers, and also will break the build
when class_dev is removed completely from struct ib_device.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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Describe disable_sma parameter with its name rather than the internal
ib_ipath_disable_sma variable name, so that the description shows up
properly in modinfo.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Acked-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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Remove redundant static declarations of functions that are defined
before they are used in the source.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc: (26 commits)
mmc: sdio_ops.c should #include "sdio_ops.h"
mmc: proper prototypes for mmc_attach_*()
mmc: make __mmc_release_bus() static
sdhci: improve no card, no reset quirk
MMC: OMAP: Do not busy wait for end of command for ever
MMC: OMAP: Start new commands from work queue instead of irq
MMC: OMAP: Lazy clock shutdown
MMC: OMAP: Move failing command abortion to workqueue
MMC: OMAP: Use tasklet instead of workqueue for cover switch notification
MMC: OMAP: Check the get_cover_state function pointer if not set
MMC: OMAP: Using setup_timer instead of init_timer
MMC: OMAP: Abort stuck commands
MMC: OMAP: General cleanup for MMC multislot support
MMC: OMAP: Power functions modified to MMC multislot support
MMC: OMAP: Fix timeout calculation for MMC multislot support
MMC: OMAP: New release dma and abort xfer functions
MMC: OMAP: Add back cover switch support
MMC: OMAP: Introduce new multislot structure and change driver to use it
MMC: OMAP: Remove cover switch handling to allow adding multislot support
MMC: OMAP: Fix the BYTEBLOCK capability removal
...
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Every file should include the headers containing the externs for its
global functions.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
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This patch adds proper prototypes for mmc_attach_*() in
drivers/mmc/core/core.h
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
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This patch makes the needlessly global __mmc_release_bus() static.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
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The quirk was meant to just inhibit some resets, but ended up blocking
all of them. Fortunately, this was just what was needed. Change the
comment to reflect reality.
Also, this issue has just been observed on Samsung laptops, so reduce
the number of chips the quirk affects.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
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The limit was a fixed 100k limit in the busy loop, which is not
accurate. It would better to have time limit for the worst case
which occurs when sending 80 cycles at 400 kHz and takes about
200 microseconds, so limit the max time spend in the busy loop
for some 250 microseconds.
Signed-off-by: Jarkko Lavinen <jarkko.lavinen@nokia.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
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Use work queues for starting new commands instead of starting them
directly from irq handler. The command scheduling needs to be delayed
a bit for some cards which should not be done from an interrupt.
Signed-off-by: Jarkko Lavinen <jarkko.lavinen@nokia.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
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MMCA spec says the mmc clock should be kept running for at least
8 cycles after the last RW request. Ensure this with lazy clock
disable after a request, or with an explicit delay before
switching a slot.
Signed-off-by: Jarkko Lavinen <jarkko.lavinen@nokia.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
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Abort failed command from workqueue rather than from an interrupt,
allowing longer delays in abortion.
Signed-off-by: Jarkko Lavinen <jarkko.lavinen@nokia.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
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The cover waitqueue is occasionally scheduled twice from timer
and the interrupt and oops follows. It would have been possible
to fix this problem with spinlocks but using tasklet was a dropin
solution with no need for locking.
This path also adds some cleanups.
Signed-off-by: Jarkko Lavinen <jarkko.lavinen@nokia.com>
Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
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If the get_cover_state is not set, it occurs the oops.
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
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Using setup_timer() instead of init_timer() on omap.c file.
Signed-off-by: Carlos Eduardo Aguiar <carlos.aguiar@indt.org.br>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
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When a card is removed while it is being accessed, a command can get stuck so
that no timeout or end of command interrupt ever occurs. The command getting
stuck is almost always CDM12, but also the other commands can get stuck. Catch
a stuck command with a timer and try sending the initialization stream until
the controller starts running again and responds with the end of command
status.
Signed-off-by: Jarkko Lavinen <jarkko.lavinen@nokia.com>
Signed-off-by: Carlos Eduardo Aguiar <carlos.aguiar@indt.org.br>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
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General code cleanup, modifications at some dev_* functions and
other hacks at mmc_omap_irq() for MMC multislot support.
Signed-off-by: Juha Yrjola <juha.yrjola@solidboot.com>
Signed-off-by: Carlos Eduardo Aguiar <carlos.aguiar@indt.org.br>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
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Modifications at power functions to MMC multislot support. This patch
also move board-specific code out of MMC OMAP driver.
Signed-off-by: Juha Yrjola <juha.yrjola@solidboot.com>
Signed-off-by: Carlos Eduardo Aguiar <carlos.aguiar@indt.org.br>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
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Fix the data timeout calculation for MMC multislot support.
Signed-off-by: Juha Yrjola <juha.yrjola@solidboot.com>
Signed-off-by: Jarkko Lavinen <jarkko.lavinen@nokia.com>
Signed-off-by: Carlos Eduardo Aguiar <carlos.aguiar@indt.org.br>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
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New functions to support MMC multislot:
mmc_omap_release_dma() and mmc_omap_abort_xfer().
Signed-off-by: Juha Yrjola <juha.yrjola@solidboot.com>
Signed-off-by: Carlos Eduardo Aguiar <carlos.aguiar@indt.org.br>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
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This patch adds back MMC cover switch support in a way that
supports multiple slots.
Signed-off-by: Juha Yrjola <juha.yrjola@solidboot.com>
Signed-off-by: Jarkko Lavinen <jarkko.lavinen@nokia.com>
Signed-off-by: Carlos Eduardo Aguiar <carlos.aguiar@indt.org.br>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
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Introduce new MMC multislot structure and change driver to use it.
Note that MMC clocking is now enabled in mmc_omap_select_slot()
and disabled in mmc_omap_release_slot().
Signed-off-by: Juha Yrjola <juha.yrjola@solidboot.com>
Signed-off-by: Jarkko Lavinen <jarkko.lavinen@nokia.com>
Signed-off-by: Carlos Eduardo Aguiar <carlos.aguiar@indt.org.br>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
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This patch removes the MMC cover switch handling temporarily
to make following multislot patches cleaner.
MMC cover switch handling will be added back in later patches
after adding basic multislot support.
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Carlos Eduardo Aguiar <carlos.aguiar@indt.org.br>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
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According with commit 255d01af9a990fd5166f04ed0cc0b30b7b67e81e
from Linux-OMAP tree, the BYTEBLOCK capability was removed by Pierre Ossman.
MMC_CAP_BYTEBLOCK is not defined causing the compile error:
drivers/mmc/host/omap.c: In function `mmc_omap_probe':
drivers/mmc/host/omap.c:1077: error: `MMC_CAP_BYTEBLOCK' undeclared (first use in this function)
drivers/mmc/host/omap.c:1077: error: (Each undeclared identifier is reported only once
drivers/mmc/host/omap.c:1077: error: for each function it appears in.)
Signed-off-by: Francisco Alecrim <francisco.alecrim@indt.org.br>
Signed-off-by: Carlos Eduardo Aguiar <carlos.aguiar@indt.org.br>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
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As noted by Kyungmin Park, the divisor calculation has
an unnecessary increase.
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Carlos Eduardo Aguiar <carlos.aguiar@indt.org.br>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
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This patch removes some opcodes from host driver so there's no need on putting
'#include <linux/mmc/mmc.h>', that should not be needed in host drivers.
Signed-off-by: Carlos Eduardo Aguiar <carlos.aguiar@indt.org.br>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
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Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
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