- 19 5月, 2010 1 次提交
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由 Grant Likely 提交于
The following structure elements duplicate the information in 'struct device.of_node' and so are being eliminated. This patch makes all readers of these elements use device.of_node instead. (struct of_device *)->node (struct dev_archdata *)->prom_node (sparc) (struct dev_archdata *)->of_node (powerpc & microblaze) Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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- 29 4月, 2010 1 次提交
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由 Grant Likely 提交于
The struct device_node *of_node pointer is moving out of dev->archdata and into the struct device proper. of_i2c.c needs to set the of_node pointer before the device is registered. Since the i2c subsystem doesn't allow 2 stage allocation and registration of i2c devices, the of_node pointer needs to be passed via the i2c_board_info structure so that it is set prior to registration. This patch adds of_node to struct i2c_board_info (conditional on CONFIG_OF), sets of_node in i2c_new_device(), and modifies of_i2c.c to use the new parameter. The calling of dev_archdata_set_node() from of_i2c will be removed in a subsequent patch when of_node is removed from archdata and all users are converted over. Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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- 30 3月, 2010 1 次提交
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由 Tejun Heo 提交于
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: NTejun Heo <tj@kernel.org> Guess-its-ok-by: NChristoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
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- 24 3月, 2010 2 次提交
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由 Darrick J. Wong 提交于
Provide module aliases for automatic loading. Signed-off-by: NDarrick J. Wong <djwong@us.ibm.com> Signed-off-by: NJean Delvare <khali@linux-fr.org>
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由 Crane Cai 提交于
*) add a new HID for IBM SMBus CMI devices *) add methods for IBM SMBus CMI devices *) hook different HID with different control methods set *) minor tweaks as suggested by Jean Delvare Slightly modified by Darrick to use #define'd IBM SMBUS HID from Darrick's ACPI scan quirk patch. Signed-off-by: NCrane Cai <crane.cai@amd.com> Signed-off-by: NDarrick J. Wong <djwong@us.ibm.com> Signed-off-by: NJean Delvare <khali@linux-fr.org>
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- 15 3月, 2010 1 次提交
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由 Randy Dunlap 提交于
drivers/i2c/busses/i2c-xiic.c:493: error: implicit declaration of function 'mdelay' Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com> Cc: "Richard Röjfors" <richard.rojfors@pelagicore.com> Cc: "Ben Dooks (embedded platforms)" <ben-linux@fluff.org> Cc: linux-i2c@vger.kernel.org Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 14 3月, 2010 6 次提交
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由 Jean Delvare 提交于
Drivers might have to do random things before and/or after I2C transfers. Add hooks to the i2c-algo-bit implementation to let them do so. Signed-off-by: NJean Delvare <khali@linux-fr.org> Cc: Alex Deucher <alexdeucher@gmail.com>
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由 Jean Delvare 提交于
Now that directory drivers/i2c/chips is gone, configuration option I2C_DEBUG_CHIP no longer has any effect, so we can drop it. Signed-off-by: NJean Delvare <khali@linux-fr.org> Acked-by: NWolfram Sang <w.sang@pengutronix.de>
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由 Jean Delvare 提交于
Move the last remaining driver from i2c/chips to misc. Good ridance! Signed-off-by: NJean Delvare <khali@linux-fr.org> Acked-by: NWolfram Sang <w.sang@pengutronix.de> Acked-by: NJonathan Cameron <jic23@cam.ac.uk>
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由 Jean Delvare 提交于
Experience has shown that the block buffer can only be used for SMBus (not I2C) block transactions, even though the datasheet doesn't mention this limitation. Reported-by: NFelix Rubinstein <felixru@gmail.com> Signed-off-by: NJean Delvare <khali@linux-fr.org> Cc: Oleg Ryjkov <oryjkov@gmail.com> Cc: stable@kernel.org
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由 Jean Delvare 提交于
Be less verbose in the absence of real errors. We don't have to report failed probes to the users, it's only confusing them. Signed-off-by: NJean Delvare <khali@linux-fr.org> Tested-by: NAndrey Gusev <ronne@list.ru> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: stable@kernel.org
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由 Stephen Rothwell 提交于
Use the new device locking/unlocking API. Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: NJean Delvare <khali@linux-fr.org>
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- 08 3月, 2010 11 次提交
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由 Uwe Kleine-König 提交于
A pointer to omap_i2c_probe is passed to the core via platform_driver_register and so the function must not disappear when the .init sections are discarded. Otherwise (if also having HOTPLUG=y) unbinding and binding a device to the driver via sysfs will result in an oops as does a device being registered late. An alternative to this patch is using platform_driver_probe instead of platform_driver_register plus removing the pointer to the probe function from the struct platform_driver. Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de> Cc: Kalle Jokiniemi <ext-kalle.jokiniemi@nokia.com> Cc: Tony Lindgren <tony@atomide.com> Cc: Paul Walmsley <paul@pwsan.com> Cc: Richard Woodruff <r-woodruff2@ti.com> Cc: chandra shekhar <x0044955@ti.com> Cc: Jason P Marini <jason.marini@gmail.com> Cc: Syed Mohammed Khasim <x0khasim@ti.com> Cc: Jarkko Nikula <jarkko.nikula@nokia.com> Cc: Juha Yrjola <juha.yrjola@solidboot.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Richard Röjfors 提交于
This patch adds support for the Xilinx XPS IIC Bus Interface. The driver uses the dynamic mode, supporting to put several I2C messages in the FIFO to reduce the number of interrupts. It has the same feature as ocores, it can be passed a list of devices that will be added when the bus is probed. Signed-off-by: NRichard Röjfors <richard.rojfors@pelagicore.com> Signed-off-by: NBen Dooks <ben-linux@fluff.org>
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由 Cory Maccarrone 提交于
The current i2c-omap driver is set up for 32-bit registers, which corresponds to most OMAP devices. However, OMAP730/850 based devices use a 16-bit register size. This change modifies the driver to perform a runtime CPU type check to determine the register sizes, and uses a bit shift of either 1 or 2 bits to compute the proper register sizes for all registers. Signed-off-by: NCory Maccarrone <darkstar6262@gmail.com> Acked-by: NTony Lindgren <tony@atomide.com> Signed-off-by: NBen Dooks <ben-linux@fluff.org>
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由 Luotao Fu 提交于
The start/stop condtions are set in different places repetedly in the i2c-pnx driver. Beside in i2c_pnx_start and i2c_pnx_stop the start/stop bit are also set during the transfer of a i2c message in the master_xmit/rcv calls. This is wrong since we can't set the start/stop condition during the transaction of a single message any way. As a matter of fact, the driver will sometimes set both the start and the stop bits at one time. This can be easily reproduced by sending a simple read request like e.g struct i2c_msg msgs[] = { { addr, 0, 1, buf }, { addr, I2C_M_RD, offset, buf } }; While processing the first message the i2c_pnx_master_xmit will set both the start_bit and the stop_bit, which will eventually confuse the slave. Fixed by remove setting start/stop condition from the transmit routines. Signed-off-by: NLuotao Fu <l.fu@pengutronix.de> Signed-off-by: NBen Dooks <ben-linux@fluff.org>
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由 Wolfgang Grandegger 提交于
As I2C interrupts must be enabled for the MPC512x by the setup function as well, "fsl,preserve-clocking" is handled in a slighly different way. Also, the old settings are now reported calling dev_dbg(). For the MPC512x the clock setup function of the MPC52xx can be re-used. Furthermore, the Kconfig help has been updated and corrected. Signed-off-by: NWolfgang Grandegger <wg@denx.de> Reviewed-by: NWolfram Sang <w.sang@pengutronix.de> Signed-off-by: NBen Dooks <ben-linux@fluff.org>
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由 Wolfgang Grandegger 提交于
To prepare support for the MPC512x processors from Freescale the "setclock" initialization functions have been renamed to "setup" because I2C interrupts must be enabled for the MPC512x by this function as well. Signed-off-by: NWolfgang Grandegger <wg@denx.de> Acked-by: NWolfram Sang <w.sang@pengutronix.de> Signed-off-by: NBen Dooks <ben-linux@fluff.org>
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由 Wolfgang Grandegger 提交于
"__devinit[data]" has not yet been used for all initialization functions and data. To avoid truncating lines, the struct "mpc_i2c_match_data" has been renamed to "mpc_i2c_data", which is even the better name. Signed-off-by: NWolfgang Grandegger <wg@denx.de> Tested-by: NWolfram Sang <w.sang@pengutronix.de> Signed-off-by: NBen Dooks <ben-linux@fluff.org>
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由 Uwe Kleine-König 提交于
Having a pointer to the probe function is unnecessary when using platform_driver_probe and yields a section mismatch warning after removing the white list entry "*driver" for { .data$, .data.rel$ } -> { .init.* } mismatches in modpost. Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: NBen Dooks <ben-linux@fluff.org>
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由 srinidhi kasagar 提交于
This adds support for ST-Ericsson's I2C block found in Ux500 and Nomadik 8815 platforms. Signed-off-by: Nsrinidhi kasagar <srinidhi.kasagar@stericsson.com> Acked-by: NAndrea Gallo <andrea.gallo@stericsson.com> Acked-by: NLinus Walleij <linus.walleij@stericsson.com> Reviewed-by: NLinus Walleij <linus.walleij@stericsson.com> Signed-off-by: NBen Dooks <ben-linux@fluff.org>
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由 Randy Dunlap 提交于
LPC_SCH is selected by GPI_SCH and I2C_ISCH, even when PCI is not enabled, but LPC_SCH depends on PCI, so make GPI_SCH and I2C_ISCH also depend on PCI. Those 2 selects also need to select what LPC_SCH selects, since kconfig does not follow selects. Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com> Cc: Denis Turischev <denis@compulab.co.il> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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由 Denis Turischev 提交于
Convert i2c-isch to platform_device for the lpc mfd core to add it at probe time. Signed-off-by: NDenis Turischev <denis@compulab.co.il> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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- 07 3月, 2010 1 次提交
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由 Akinobu Mita 提交于
Rename for_each_bit to for_each_set_bit in the kernel source tree. To permit for_each_clear_bit(), should that ever be added. The patch includes a macro to map the old for_each_bit() onto the new for_each_set_bit(). This is a (very) temporary thing to ease the migration. [akpm@linux-foundation.org: add temporary for_each_bit()] Suggested-by: NAlexey Dobriyan <adobriyan@gmail.com> Suggested-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NAkinobu Mita <akinobu.mita@gmail.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Russell King <rmk@arm.linux.org.uk> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Artem Bityutskiy <dedekind@infradead.org> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 02 3月, 2010 11 次提交
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由 Zhangfei Gao 提交于
i2c_master_send & i2c_master_recv do not support more than 64 kb transfer, since msg.len is u16. Signed-off-by: NZhangfei Gao <zgao6@marvell.com> Signed-off-by: NJean Delvare <khali@linux-fr.org>
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由 Jean Delvare 提交于
Thanks to -Wshadow. Signed-off-by: NJean Delvare <khali@linux-fr.org> Reviewed-by: NWolfram Sang <w.sang@pengutronix.de>
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由 Mark Brown 提交于
Allow I2C drivers to make use of the runtime PM framework by adding bus implementations of the runtime PM operations. These simply immediately suspend when the device is idle. The runtime PM framework provides drivers with off the shelf refcounts for enables and sysfs control for managing runtime suspend from userspace so is useful even without meaningful input from the bus. Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: NJean Delvare <khali@linux-fr.org>
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由 Jean Delvare 提交于
Add support for the SMBus alert mechanism to the i2c-parport-light driver. The ADM1032 evaluation board at least is properly wired for this. Signed-off-by: NJean Delvare <khali@linux-fr.org> Cc: David Brownell <dbrownell@users.sourceforge.net> Cc: Trent Piepho <tpiepho@freescale.com>
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由 Jean Delvare 提交于
Add support for the SMBus alert mechanism to the i2c-parport driver. The ADM1032 evaluation board at least is properly wired for this. Signed-off-by: NJean Delvare <khali@linux-fr.org> Cc: David Brownell <dbrownell@users.sourceforge.net> Cc: Trent Piepho <tpiepho@freescale.com>
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由 Jean Delvare 提交于
Having a separate Kconfig option for i2c-smbus makes it possible to build that support as a module even when i2c-core itself is built-in. Bus drivers which implement SMBus alert should select this option, so in most cases this option is hidden and the user doesn't have to care about it. Signed-off-by: NJean Delvare <khali@linux-fr.org> Cc: David Brownell <dbrownell@users.sourceforge.net> Cc: Trent Piepho <tpiepho@freescale.com>
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由 Jean Delvare 提交于
SMBus alert support. The SMBus alert protocol allows several SMBus slave devices to share a single interrupt pin on the SMBus master, while still allowing the master to know which slave triggered the interrupt. This is based on preliminary work by David Brownell. The key difference between David's implementation and mine is that his was part of i2c-core, while mine is split into a separate, standalone module named i2c-smbus. The i2c-smbus module is meant to include support for all SMBus extensions to the I2C protocol in the future. The benefit of this approach is a zero cost for I2C bus segments which do not need SMBus alert support. Where David's implementation increased the size of struct i2c_adapter by 7% (40 bytes on i386), mine doesn't touch it. Where David's implementation added over 150 lines of code to i2c-core (+10%), mine doesn't touch it. The only change that touches all the users of the i2c subsystem is a new callback in struct i2c_driver (common to both implementations.) I seem to remember Trent was worried about the footprint of David'd implementation, hopefully mine addresses the issue. Signed-off-by: NJean Delvare <khali@linux-fr.org> Acked-by: NJonathan Cameron <jic23@cam.ac.uk> Cc: David Brownell <dbrownell@users.sourceforge.net> Cc: Trent Piepho <tpiepho@freescale.com>
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由 Jean Delvare 提交于
When the i2c-parport adapter is reponsible for powering devices, it would seem reasonable to give them some time to settle before trying to access them. Signed-off-by: NJean Delvare <khali@linux-fr.org>
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由 Jean Delvare 提交于
The description of the delay parameter is incomplete, it suggests that there is a direct relation between the delay value and the bus frequency. In fact, due to additional delays in the i2c bitbanging code, the i2c clock is always much slower. Signed-off-by: NJean Delvare <khali@linux-fr.org> Cc: Till Harbaum <Till@Harbaum.org>
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由 Seth Heasley 提交于
Add the Intel Cougar Point (PCH) SMBus controller device IDs. Signed-off-by: NSeth Heasley <seth.heasley@intel.com> Signed-off-by: NJean Delvare <khali@linux-fr.org>
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由 Márton Németh 提交于
The id_table field of the struct pci_driver is constant in <linux/pci.h> so it is worth to make initialization data also constant. The semantic match that finds this kind of pattern is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r@ disable decl_init,const_decl_init; identifier I1, I2, x; @@ struct I1 { ... const struct I2 *x; ... }; @s@ identifier r.I1, y; identifier r.x, E; @@ struct I1 y = { .x = E, }; @c@ identifier r.I2; identifier s.E; @@ const struct I2 E[] = ... ; @depends on !c@ identifier r.I2; identifier s.E; @@ + const struct I2 E[] = ...; // </smpl> Signed-off-by: NMárton Németh <nm127@freemail.hu> Cc: Julia Lawall <julia@diku.dk> Signed-off-by: NJean Delvare <khali@linux-fr.org>
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- 27 2月, 2010 1 次提交
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由 Rade Bozic 提交于
Signed-off-by: NRade Bozic <rade.bozic.ext@nsn.com> Signed-off-by: NDavid Daney <ddaney@caviumnetworks.com> Cc: Michael Lawnick <michael.lawnick.ext@nsn.com> To: linux-mips@linux-mips.org To: linux-i2c@vger.kernel.org To: ben-linux@fluff.org To: khali@linux-fr.org Cc: rade.bozic.ext@nsn.com Cc: Michael Lawnick <michael.lawnick.ext@nsn.com> Patchwork: http://patchwork.linux-mips.org/patch/890/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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- 13 2月, 2010 4 次提交
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由 Russell King 提交于
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Russell King 提交于
Remove unnecessary includes Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Russell King 提交于
It makes them harder to grep for. Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Russell King 提交于
Since the drivers data now contains the i2c adapter structure, we can pass around the drivers data between internal functions (which is what they want) rather than using the i2c adapter structure and having an additional pointer dereference each time. Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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