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* i2c: davinci: Free requested IRQ in removeMarcus Folkesson2012-06-011-1/+1
| | | | | | | | | | | | commit 9868a060ccf769c08ec378a9829137e272e9a92c upstream. The freed IRQ is not necessary the one requested in probe. Even if it was, with two or more i2c-controllers it will fails anyway. Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com> Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* i2c: pnx: Disable clk in suspendRoland Stigge2012-05-071-2/+1
| | | | | | | | | | | | | | commit 6c557cfee08751d22aed34840f389b846f0f4508 upstream. In the driver's suspend function, clk_enable() was used instead of clk_disable(). This is corrected with this patch. Signed-off-by: Roland Stigge <stigge@antcom.de> Reviewed-by: Arnd Bergmann <arnd@arndb.de> [wsa: reworded commit header slightly] Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* i2c-algo-bit: Fix spurious SCL timeouts under heavy loadVille Syrjala2012-03-191-1/+7
| | | | | | | | | | | | | | | | | commit 8ee161ce5e0cfc689eb677f227a6248191165fac upstream. When the system is under heavy load, there can be a significant delay between the getscl() and time_after() calls inside sclhi(). That delay may cause the time_after() check to trigger after SCL has gone high, causing sclhi() to return -ETIMEDOUT. To fix the problem, double check that SCL is still low after the timeout has been reached, before deciding to return -ETIMEDOUT. Signed-off-by: Ville Syrjala <syrjala@sci.fi> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* i2c: mxs: only flag completion when queue is completely doneWolfram Sang2012-03-121-3/+10
| | | | | | | | | | | | | | | | | | commit 844990daa2e69a4258049ba9c2bae1180657dac3 upstream. The hardware generates an interrupt for every completed command in the queue while the code assumed that it will only generate one interrupt when the queue is empty. So, explicitly check if the queue is really empty. This patch fixed problems which occurred due to high traffic on the bus. While we are here, move the completion-initialization after the parameter error checking. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Cc: Shawn Guo <shawn.guo@linaro.org> Cc: Marek Vasut <marek.vasut@gmail.com> Cc: Lothar Waßmann <LW@KARO-electronics.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* i2c-eg20t: modified the setting of transfer rate.Toshiharu Okada2012-01-251-1/+1
| | | | | | | | | | | | commit ff35e8b18984ad2a82cbd259fc07f0be4b34b1aa upstream. This patch modified the setting value of I2C Bus Transfer Rate Setting Counter regisrer. Signed-off-by: Toshiharu Okada <toshiharu-linux@dsn.okisemi.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* I2C: OMAP: correct SYSC register offset for OMAP4Alexander Aring2012-01-251-1/+1
| | | | | | | | | | | | | commit 2727b1753934e154931d6b3bdf20c9b2398457a2 upstream. Correct OMAP_I2C_SYSC_REG offset in omap4 register map. Offset 0x20 is reserved and OMAP_I2C_SYSC_REG has 0x10 as offset. Signed-off-by: Alexander Aring <a.aring@phytec.de> [khilman@ti.com: minor changelog edits] Signed-off-by: Kevin Hilman <khilman@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* i2c: Fix error value returned by several bus driversJean Delvare2012-01-255-10/+20
| | | | | | | | | | | | | commit 7c1f59c9d5caf3a84f35549b5d58f3c055a68da5 upstream. When adding checks for ACPI resource conflicts to many bus drivers, not enough attention was paid to the error paths, and for several drivers this causes 0 to be returned on error in some cases. Fix this by properly returning a non-zero value on every error. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* i2c-algo-bit: Generate correct i2c address sequence for 10-bit targetJeffrey (Sheng-Hui) Chu2011-12-091-2/+2
| | | | | | | | | | | | | commit cc6bcf7d2ec2234e7b41770185e4dc826390185e upstream. The wrong bits were put on the wire, fix that. This fixes kernel bug #42562. Signed-off-by: Sheng-Hui J. Chu <jeffchu@broadcom.com> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* Merge branch 'for-30-rc5/all-i2c' of git://git.fluff.org/bjdooks/linuxLinus Torvalds2011-07-073-6/+17
|\ | | | | | | | | | | | | | | * 'for-30-rc5/all-i2c' of git://git.fluff.org/bjdooks/linux: i2c-bfin-twi: abort transfer is MEM bit is reset unexpectedly i2c-s3c2410: Remove useless break code i2c-s3c2410: Fix typo 'i2s' -> 'i2c' i2c: tegra: Assign unused slave address
| *-. Merge branches 'for-30-rc4/i2c-bfin', 'for-30-rc4/i2c-omap', ↵Ben Dooks2011-06-272-5/+10
| |\ \ | | | | | | | | | | | | 'for-30-rc4/i2c-s3c' and 'for-30-rc4/i2c-tegra' into for-30-rc5/all-i2c
| | | * i2c: tegra: Assign unused slave addressStephen Warren2011-06-271-1/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On Tegra, we should always use the "new" I2C slave controller, to avoid issues with the old controller. This was implemented in commit 65a1a0a "i2c: tegra: Enable new slave mode." There is currently no driver for the Tegra I2C slave controller upstream. Additionally, the controller cannot be completely disabled. Instead, we need to: a) Set I2C_SL_CNFG_NACK to make the controller automatically NACK any incoming transactions. b) The controller's definition of NACK isn't identical to the I2C protocol's definition. Specifically, it will perform a standard NACK, but *also* continue to hold the clock line low in expectation of receiving more data. This can hang the bus, or at least cause transaction timeouts, if something starts a transaction that matches the controller's slave address. Since the default address is 0x00, the general call address, this does occur in practice. To avoid this, we explicitly program a slave address that is reserved for future expansion. For current boards, this guarantees the address will never be used. If a future board ever needs to use this address, we can add platform data to determine a board-specific safe address. 0xfc is picked by this patch. This patch is based on a change previously posted by: Wei Ni <wni@nvidia.com> http://www.spinics.net/lists/linux-i2c/msg05437.html In turned based on internal changes by: Bharat Nihalani <bnihalani@nvidia.com> A semantically equivalent change has been contained in the various ChromeOS kernels for a while. I tested this change on top of 3.0-rc2 on Harmony, and interacted with the WM8903 I2C-based audio codec. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| | * | i2c-s3c2410: Remove useless break codeJonghwan Choi2011-06-271-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Jonghwan Choi <jhbird.choi@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| | * | i2c-s3c2410: Fix typo 'i2s' -> 'i2c'Huisung Kang2011-06-271-3/+3
| | |/ | | | | | | | | | | | | | | | Signed-off-by: Huisung Kang <hs1218.kang@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| * | i2c-bfin-twi: abort transfer is MEM bit is reset unexpectedlySonic Zhang2011-06-271-1/+7
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | Sometimes, the first I2C transmit interrupt is not serviced in time (like when higher priority interrupts take too long). Since the RESTART bit is not set before the next I2C clock, when the TWI handler is finally called, the I2C session is aborted (MEM bit is reset) and both SMITSERV and MCOMP int status bits are set. So when this happens, abort the transfer. Reported-by: Isabelle Leonardi <i.leonardi@detracom.fr> Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
* | i2c/pca954x: Initialize the mux to disconnected statePetri Gynther2011-06-291-3/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | pca954x power-on default is channel 0 connected. If multiple pca954x muxes are connected to the same physical I2C bus, the parent bus will see channel 0 devices behind both muxes by default. This is bad. Scenario: -- pca954x @ 0x70 -- ch 0 (I2C-bus-101) -- EEPROM @ 0x50 | I2C-bus-1 --- | -- pca954x @ 0x71 -- ch 0 (I2C-bus-111) -- EEPROM @ 0x50 1. Load I2C bus driver: creates I2C-bus-1 2. Load pca954x driver: creates virtual I2C-bus-101 and I2C-bus-111 3. Load eeprom driver 4. Try to read EEPROM @ 0x50 on I2C-bus-101. The transaction will also bleed onto I2C-bus-111 because pca954x @ 0x71 channel 0 is connected by default. Fix: Initialize pca954x to disconnected state in pca954x_probe() Signed-off-by: Petri Gynther <pgynther@google.com> Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: stable@kernel.org
* | i2c-taos-evm: Fix log messagesJean Delvare2011-06-291-4/+4
|/ | | | | | | | | * Print all error and information messages even when debugging is disabled. * Don't use adapter device to log messages before it is ready. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: stable@kernel.org
* mfd: Use mfd cell platform_data for timberdale cells platform bitsSamuel Ortiz2011-05-262-4/+2
| | | | | | | | | | | With the addition of a device platform mfd_cell pointer, MFD drivers can go back to passing platform data back to their sub drivers. This allows for an mfd_cell->mfd_data removal and thus keep the sub drivers MFD agnostic. This is mostly needed for non MFD aware sub drivers. Acked-by: Richard Röjfors <richard.rojfors@pelagicore.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* Merge branch 'for-linus/2640/i2c' of git://git.fluff.org/bjdooks/linuxLinus Torvalds2011-05-245-106/+240
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-linus/2640/i2c' of git://git.fluff.org/bjdooks/linux: (21 commits) mach-ux500: set proper I2C platform data from MOP500s i2c-nomadik: break out single messsage transmission i2c-nomadik: reset the hw after status check i2c-nomadik: remove the unnecessary delay i2c-nomadik: change the TX and RX threshold i2c-nomadik: add code to retry on timeout failure i2c-nomadik: use pm_runtime API i2c-nomadik: print abort cause only on abort tag i2c-nomadik: correct adapter timeout initialization i2c-nomadik: remove the redundant error message i2c-nomadik: corrrect returned error numbers i2c-nomadik: fix speed enumerator i2c-nomadik: make i2c timeout specific per i2c bus i2c-nomadik: add regulator support i2c: i2c-sh_mobile bus speed platform data V2 i2c: i2c-sh_mobile clock string removal i2c-eg20t: Support new device ML7223 IOH i2c: tegra: Add de-bounce cycles. i2c: tegra: fix repeated start handling i2c: tegra: recover from spurious interrupt storm ...
| *---. Merge branches 'for-2639/i2c-eg20t', 'for-2639/i2c-shmobile', ↵Ben Dooks2011-05-257-108/+241
| |\ \ \ | | | | | | | | | | | | | | | 'for-2639/i2c-tegra' and 'for-2639/i2c-nomadik2' into for-linus/2640/i2c
| | | | * i2c-nomadik: break out single messsage transmissionLinus Walleij2011-05-251-32/+48
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Reduce code size in the message transfer function by factoring out a single-message transfer function. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| | | | * i2c-nomadik: reset the hw after status checkVirupax Sadashivpetimath2011-05-251-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In case of I2C timeout, reset the HW only after the HW status is read, otherwise the staus will be lost. Signed-off-by: Virupax Sadashivpetimath <virupax.sadashivpetimath@stericsson.com> Reviewed-by: Jonas Aberg <jonas.aberg@stericsson.com> Reviewed-by: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| | | | * i2c-nomadik: remove the unnecessary delayVirupax Sadashivpetimath2011-05-251-18/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The delay in the driver seems to be not needed, so remove it. Signed-off-by: Virupax Sadashivpetimath <virupax.sadashivpetimath@stericsson.com> Reviewed-by: Markus Grape <markus.grape@stericsson.com> Tested-by: Per Persson <per.xb.persson@stericsson.com> Tested-by: Chethan Krishna N <chethan.krishna@stericsson.com> Reviewed-by: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| | | | * i2c-nomadik: change the TX and RX thresholdVirupax Sadashivpetimath2011-05-251-13/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 1) Increase RX FIFO threshold so that there is a reduction in the number of interrupts handled to complete a transaction. 2) Fill TX FIFO in the write function. Signed-off-by: Virupax Sadashivpetimath <virupax.sadashivpetimath@stericsson.com> Reviewed-by: Jonas Aberg <jonas.aberg@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| | | | * i2c-nomadik: add code to retry on timeout failureVirupax Sadashivpetimath2011-05-251-48/+49
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It is seen that i2c-nomadik controller randomly stops generating the interrupts leading to a i2c timeout. As a workaround to this problem, add retries to the on going transfer on failure. Signed-off-by: Virupax Sadashivpetimath <virupax.sadashivpetimath@stericsson.com> Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| | | | * i2c-nomadik: use pm_runtime APIRabin Vincent2011-05-251-6/+31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the pm_runtime API for pins control. Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Reviewed-by: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Reviewed-by: Jonas Aberg <jonas.aberg@stericsson.com> [deleted some surplus runtime PM code] Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| | | | * i2c-nomadik: print abort cause only on abort tagVirupax Sadashivpetimath2011-05-251-8/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Modify the code to: 1)Print the cause of i2c failure only if the status is set to ABORT. 2)Print slave address on send/receive fail, will help in which slave failed. Signed-off-by: Virupax Sadashivpetimath <virupax.sadashivpetimath@stericsson.com> Reviewed-by: Jonas Aberg <jonas.aberg@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| | | | * i2c-nomadik: correct adapter timeout initializationVirupax Sadashivpetimath2011-05-251-4/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Correct the incorrect initialization of adapter timeout not to be in milliseconds, as it needs to be done in jiffies. Signed-off-by: Virupax Sadashivpetimath <virupax.sadashivpetimath@stericsson.com> Reviewed-by: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| | | | * i2c-nomadik: remove the redundant error messagesrinidhi kasagar2011-05-251-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The abort cause string itself is an error, so remove the redundant explicit error message. Signed-off-by: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Reviewed-by: Jonas Aberg <jonas.aberg@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| | | | * i2c-nomadik: corrrect returned error numbersVirupax Sadashivpetimath2011-05-251-4/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The code was returning bad error numbers or just -1 in some cases. Signed-off-by: Virupax Sadashivpetimath <virupax.sadashivpetimath@stericsson.com> Reviewed-by: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| | | | * i2c-nomadik: make i2c timeout specific per i2c busVirupax Sadashivpetimath2011-05-251-6/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add option to have different i2c timeout delay for different i2c buses specified in platform data. Default to the old value unless specified. Signed-off-by: Virupax Sadashivpetimath <virupax.sadashivpetimath@stericsson.com> Reviewed-by: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| | | | * i2c-nomadik: add regulator supportJonas Aberg2011-05-251-15/+58
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This on-chip I2C controller needs to fetch the regulator representing its voltage domain so that it won't be switched off. Signed-off-by: Jonas Aberg <jonas.aberg@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| | | * | i2c: tegra: Add de-bounce cycles.Jay Cheng2011-05-111-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This enables debouncing of the I2C lines. The debounce period is 2 * the debounce register field value, in terms of the I2C block's main clock. The Tegra TRM indicates that a setting yielding >50nS is desirable. Hence, a setting of 2 => 4 clocks @ 72MHz => ~55nS. Signed-off-by: Ken Radtke <kradtke@nvidia.com> [swarren: Added commit description body, Fixed 80-column limit, Reverted file permission change] Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| | | * | i2c: tegra: fix repeated start handlingErik Gilling2011-05-111-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A repeated start should be used for all but the last msg in an xfer. The NOSTART flag is for skipping the START frame (addr/rw) Signed-off-by: Erik Gilling <konkers@android.com> Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| | | * | i2c: tegra: recover from spurious interrupt stormTodd Poynor2011-05-111-2/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Re-init the I2C controller when an IRQ arrives with no I2C_INT_STATUS bits set to indicate why the interrupt was sent. Storms of such mystery interrupts are infrequently seen. Dump some more status when these interrupts arrive. Set an error for the current request and wake up the requester (rather than timing out the request or possibly silently ignoring the interrupts). If the I2C block is inside the DVC, also ACK the DVC I2C transfer done interrupt in the ISR error return path, as is done for the normal return path. Signed-off-by: Todd Poynor <toddpoynor@google.com> [swarren: Fix minor checkpatch whitespace issue, commit tag] Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| | | * | i2c: tegra: Enable new slave mode.Kenneth Waters2011-05-111-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For Tegra i2c controller to function properly new slave mode must be enabled. swarren notes: In particular, I found this was needed when working on enabling the Tegra audio driver on the Seaboard board. There are two different PCB layouts for this board; a "clamshell" version, which works just fine without this change, and the original non-clamshell version, which needs this change in order for I2C to operate correctly. Without it, I2C probing fails for some devices, e.g. with: wm8903 0-001a: Device with ID register 0 is not a WM8903 wm8903 0-001a: asoc: failed to probe CODEC wm8903.0-001a: -19 asoc: failed to instantiate card tegra-wm8903: -19 ALSA device list: No soundcards found. Signed-off-by: Rakesh Iyer <riyer@nvidia.com> Cc: stable <stable@kernel.org> Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| | * | | i2c: i2c-sh_mobile bus speed platform data V2Magnus Damm2011-05-111-2/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support to the i2c-sh_mobile driver for setting the I2C bus speed using platform data. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| | * | | i2c: i2c-sh_mobile clock string removalMagnus Damm2011-05-111-4/+2
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove the clock string magic from the i2c-sh_mobile driver now when all platforms support clkdev properly. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| * | | i2c-eg20t: Support new device ML7223 IOHTomoya MORINAGA2011-05-112-3/+9
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | Support new device OKI SEMICONDUCTOR ML7223 IOH(Input/Output Hub). The ML7223 IOH is for MP(Media Phone) use. The ML7223 is companion chip for Intel Atom E6xx series. The ML7223 is completely compatible for Intel EG20T PCH. Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
* | | i2c-parport: Various cleanupsJean Delvare2011-05-243-59/+55
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Fix white space. * Rename labels to something meaningful. * Prefix defines with PORT_ to avoid collision with macros from <linux/parport.h>. * Add const markers where possible. Signed-off-by: Jean Delvare <khali@linux-fr.org>
* | | i2c-i801: Don't depend on other kernel driver config optionsJean Delvare2011-05-242-10/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Don't let other driver config options influence us, as it makes the code more complex and fragile for a small benefit. There's nothing wrong with instantiating I2C devices even if they don't have a driver. And we're talking about 835 extra bytes in the binary on x86-64, that's hardly worth arguing about. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: David Woodhouse <david.woodhouse@intel.com> Cc: Hans de Goede <hdegoede@redhat.com>
* | | i2c-i801: Check for vendor Fujitsu before probing for apanelJean Delvare2011-05-241-1/+2
| | | | | | | | | | | | | | | | | | | | | Scanning the BIOS memory for the apanel information is costly, so avoid doing it on non-Fujitsu machines. Signed-off-by: Jean Delvare <khali@linux-fr.org>
* | | i2c-i801: Don't probe for slaves on IDF channelsJean Delvare2011-05-241-15/+31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I don't know if Fujitsu is ever going to produce Patsburg-based machines, but if they do, I'd rather not probe the secondary (IDF) SMBus channels. At least not until we have a good reason for doing so. On a side note, I'm not even sure if it is right to enable detection of HWMON and DDC devices on the IDF channels. Time will tell... Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Hans de Goede <hdegoede@redhat.com> Acked-by: David Woodhouse <David.Woodhouse@intel.com>
* | | i2c-i801: SMBus patch for Intel Panther Point DeviceIDsSeth Heasley2011-05-242-1/+4
| |/ |/| | | | | | | | | | | This patch adds the SMBus controller DeviceID for the Intel Panther Point PCH. Signed-off-by: Seth Heasley <seth.heasley@intel.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
* | Merge branch 'sh-latest' of ↵Linus Torvalds2011-05-231-0/+1
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 * 'sh-latest' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (23 commits) sh: Ignore R_SH_NONE module relocations. SH: SE7751: Fix pcibios_map_platform_irq prototype. sh: remove warning and warning_symbol from struct stacktrace_ops sh: wire up sys_sendmmsg. clocksource: sh_tmu: Runtime PM support clocksource: sh_tmu: __clocksource_updatefreq_hz() update clocksource: sh_cmt: Runtime PM support clocksource: sh_cmt: __clocksource_updatefreq_hz() update dmaengine: shdma: synchronize RCU before freeing, simplify spinlock dmaengine: shdma: add runtime- and system-level power management dmaengine: shdma: fix locking sh: sh-sci: sh7377 and sh73a0 build fixes sh: cosmetic improvement: use an existing pointer serial: sh-sci: suspend/resume wakeup support V2 serial: sh-sci: Runtime PM support sh: select IRQ_FORCED_THREADING. sh: intc: Set virtual IRQs as nothread. sh: fixup fpu.o compile order i2c: add a module alias to the sh-mobile driver ALSA: add a module alias to the FSI driver ...
| * \ Merge branch 'master' of ↵Paul Mundt2011-05-234-17/+26
| |\ \ | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into sh-latest
| * | | i2c: add a module alias to the sh-mobile driverGuennadi Liakhovetski2011-04-181-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch enables I2C driver autoloading on sh-mobile systems. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Reviewed-by: Simon Horman <horms@verge.net.au> Cc: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | | | Merge branch 'linux-next' of ↵Linus Torvalds2011-05-231-0/+1
|\ \ \ \ | |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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) PCI: Don't use dmi_name_in_vendors in quirk PCI: remove unused AER functions PCI/sysfs: move bus cpuaffinity to class dev_attrs PCI: add rescan to /sys/.../pci_bus/.../ PCI: update bridge resources to get more big ranges when allocating space (again) KVM: Use pci_store/load_saved_state() around VM device usage PCI: Add interfaces to store and load the device saved state PCI: Track the size of each saved capability data area PCI/e1000e: Add and use pci_disable_link_state_locked() x86/PCI: derive pcibios_last_bus from ACPI MCFG PCI: add latency tolerance reporting enable/disable support PCI: add OBFF enable/disable support PCI: add ID-based ordering enable/disable support PCI hotplug: acpiphp: assume device is in state D0 after powering on a slot. PCI: Set PCIE maxpayload for card during hotplug insertion PCI/ACPI: Report _OSC control mask returned on failure to get control x86/PCI: irq and pci_ids patch for Intel Panther Point DeviceIDs PCI: handle positive error codes PCI: check pci_vpd_pci22_wait() return PCI: Use ICH6_GPIO_EN in ich6_lpc_acpi_gpio ... Fix up trivial conflicts in include/linux/pci_ids.h: commit a6e5e2be4461 moved the intel SMBUS ID definitons to the i2c-i801.c driver.
* | | | Merge branch 'for-linus' of ↵Linus Torvalds2011-05-231-1/+1
|\ \ \ \ | |_|/ / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (39 commits) b43: fix comment typo reqest -> request Haavard Skinnemoen has left Atmel cris: typo in mach-fs Makefile Kconfig: fix copy/paste-ism for dell-wmi-aio driver doc: timers-howto: fix a typo ("unsgined") perf: Only include annotate.h once in tools/perf/util/ui/browsers/annotate.c md, raid5: Fix spelling error in comment ('Ofcourse' --> 'Of course'). treewide: fix a few typos in comments regulator: change debug statement be consistent with the style of the rest Revert "arm: mach-u300/gpio: Fix mem_region resource size miscalculations" audit: acquire creds selectively to reduce atomic op overhead rtlwifi: don't touch with treewide double semicolon removal treewide: cleanup continuations and remove logging message whitespace ath9k_hw: don't touch with treewide double semicolon removal include/linux/leds-regulator.h: fix syntax in example code tty: fix typo in descripton of tty_termios_encode_baud_rate xtensa: remove obsolete BKL kernel option from defconfig m68k: fix comment typo 'occcured' arch:Kconfig.locks Remove unused config option. treewide: remove extra semicolons ...
| * | | Haavard Skinnemoen has left AtmelJean Delvare2011-05-181-1/+1
| |/ / | | | | | | | | | | | | | | | | | | | | | Haavard's e-mail address at Atmel is no longer valid. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Havard Skinnemoen <hskinnemoen@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* | | drivercore: revert addition of of_match to struct deviceGrant Likely2011-05-181-3/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit b826291c, "drivercore/dt: add a match table pointer to struct device" added an of_match pointer to struct device to cache the of_match_table entry discovered at driver match time. This was unsafe because matching is not an atomic operation with probing a driver. If two or more drivers are attempted to be matched to a driver at the same time, then the cached matching entry pointer could get overwritten. This patch reverts the of_match cache pointer and reworks all users to call of_match_device() directly instead. Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
generated by cgit v1.1 at 2024-12-23 17:04:45 +0000