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* Merge branch 'for-next/of-device-id'Sascha Hauer2015-05-061-1/+1
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| * of: use 'const void *' for struct of_device_id.dataAntony Pavlov2015-04-301-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since 2011 barebox' of_device_id struct uses unsigned long type for data field: struct of_device_id { char *compatible; unsigned long data; }; Almost always struct of_device_id.data field are used as pointer and need 'unsigned long' casting. E.g. see 'git grep -A 4 of_device_id drivers/' output: drivers/ata/sata-imx.c:static __maybe_unused struct of_device_id imx_sata_dt_ids[] = { drivers/ata/sata-imx.c- { drivers/ata/sata-imx.c- .compatible = "fsl,imx6q-ahci", drivers/ata/sata-imx.c- .data = (unsigned long)&data_imx6, drivers/ata/sata-imx.c- }, { Here is of_device_id struct in linux kernel v4.0: struct of_device_id { char name[32]; char type[32]; char compatible[128]; const void *data; }; Changing of_device_id.data type to 'const void *data' will increase barebox' linux kernel compatibility and decrease number of 'unsigned long' casts. Part of the patch was done using the 'coccinelle' tool with the following semantic patch: @rule1@ identifier dev; identifier type; identifier func; @@ func(...) { <... - dev_get_drvdata(dev, (unsigned long *)&type) + dev_get_drvdata(dev, (const void **)&type) ...> } @rule2@ identifier dev; identifier type; identifier func; identifier data; @@ func(...) { <... - dev_get_drvdata(dev, (unsigned long *)&type->data) + dev_get_drvdata(dev, (const void **)&type->data) ...> } Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | drivers/base: Mark (of|platform)_device_id data as constantUwe Kleine-König2015-04-171-3/+3
|/ | | | | | | | | | There should be no reason to ever change the data pointed to by id_table or of_compatible. So make this offical by adding some 'const's. In Linux the corresponding pointers are marked as const, too. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* drivers: remove unused function dev_protect()Marc Kleine-Budde2015-03-031-2/+0
| | | | | Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* driver: add postcore_platform_driverJean-Christophe PLAGNIOL-VILLARD2015-02-041-0/+2
| | | | | Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* driver: workaroud resource request that conflicts with errno PTRJean-Christophe PLAGNIOL-VILLARD2015-01-081-0/+8
| | | | | | | | | | | | | | | | broken since commit ed6e965824303255cacc1c1a195d3684caa26bce Author: Sascha Hauer <s.hauer@pengutronix.de> resource: Let dev_request_mem_region return an error pointer Introduce dev_request_mem_region_err_null only used on platform like at91 where the resource address conflicts with errno PTR. Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Documentation: remove doxygen documentationSascha Hauer2014-06-261-26/+0
| | | | | | | The doxygen documentation is long outdated. Remove it. It will be replaced with sphinx based documentation later. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* x86: ns16550: Rework driver to allow for x86 I/O spaceMichel Stam2014-04-091-1/+1
| | | | | | | | | | | | The current implementation fakes a memory-mapped I/O device at 0x3f8 and 0x2f8, then uses platform read/write functions to do the actual reading and writing. These platform functions only exist for the x86 platform; better to move the I/O routines into the driver and have the driver request I/O ports using request_ioport_region. Signed-off-by: Michel Stam <michel@reverze.net> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* common: Allow for I/O mapped I/OMichel Stam2014-04-081-1/+4
| | | | | | | | Rework the current framework so that I/O mapped I/O resources are also possible. Signed-off-by: Michel Stam <michel@reverze.net> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/partitionhelper'Sascha Hauer2014-03-071-4/+37
|\ | | | | | | | | Conflicts: fs/devfs-core.c
| * devfs: partitioning: add new helper devfs_create_partitionsUwe Kleine-König2014-02-281-0/+33
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Compared to devfs_add_partition which adds a single partition devfs_create_partitions creates several partitions at once. One nice benefit is that this simplifies appending partitions because the start of the latter partition doesn't need to be specified explicitly. Also dev_add_bb_dev() is called by the new helper if the bbname is specified for a partition. Note that adding partitions is also more flexible now (also via devfs_add_partition) because negative values for offset and size now have a proper meaning instead of creating broken partitions. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * devfs_add_partition: make flags parameter unsignedUwe Kleine-König2014-02-281-4/+4
| | | | | | | | | | | | | | | | | | The value is only used to assign to a (*struct cdev)->flags which is an unsigned int and it is passed as fourth parameter of mtd_add_partition which is an unsigned long. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | i2c/spi: match of_modaliasesSascha Hauer2014-02-071-1/+2
|/ | | | | | | | i2c/spi devices in the devicetree often come with a "vendor,device" comaptible string. These do not match in barebox, so add a device_match_of_modalias function which does exactly that. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* device: Add functions to add resourcesSascha Hauer2013-11-271-0/+9
| | | | | | | | | We currently have functions to add a device based on function parameters. This adds the corresponding functions to add resources to a device without registering the device itself. This is useful to manipulate devices before registering them. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* cdev: store dos partition type in struct cdevSascha Hauer2013-10-141-0/+1
| | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/of'Sascha Hauer2013-08-051-2/+7
|\ | | | | | | | | | | Conflicts: arch/arm/boards/freescale-mx53-loco/board.c drivers/of/Makefile
| * cdev: add device_find_partitionSascha Hauer2013-07-151-0/+1
| | | | | | | | | | | | | | device_find_partition allows to find a partition of a device with a particular name. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * cdev: allow to open a struct cdevSascha Hauer2013-07-151-0/+1
| | | | | | | | | | | | | | cdev_open() opens a cdev by name. This introduces cdev_do_open which allows to open a cdev when the cdev is already found by other means. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * cdev: introduce partition namesSascha Hauer2013-07-151-1/+4
| | | | | | | | | | | | | | | | currently most partition cdevs have the name <devname>.<partname> This makes it hard to find a partition by <partname>. This introduces a partname field in struct cdev so that. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * devfs: let devfs_add_partition return the new partitionSascha Hauer2013-07-151-1/+1
| | | | | | | | | | | | Useful for unregistering later or for adding addional flags. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | Merge branch 'for-next/mtd'Sascha Hauer2013-08-051-0/+2
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| * | dma: apbh: Turn into a driverSascha Hauer2013-07-231-0/+2
| |/ | | | | | | | | | | This converts the apbh driver into a real driver. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* / base: Transform "platform_match" into "device_match" and make this function ↵Alexander Shiyan2013-07-151-0/+1
|/ | | | | | | | | public This change will allow reuse this function for other buses. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* driver: implement device_detect_by_name functionSascha Hauer2013-06-261-0/+1
| | | | | | | It becomes a common pattern for boards to find a device and call device_detect on it. Add a convenience wrapper for it. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/mci'Sascha Hauer2013-06-021-3/+10
|\ | | | | | | | | Conflicts: include/driver.h
| * devices: add detect mechanismSascha Hauer2013-05-311-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We often encounter the situation where slow devices should not be probed during startup since probing is slow and maybe unnecessary for unused devices. With MMC we have the 'probe' device parameter, for ata we have the same, for USB we have the 'usb' command. Overall this is not very consistent. With MMC there is the additional problem that the probe parameter is attached to the logical device when we often have the information which physical device we want to probe. This patch adds a 'detect' callback for devices and adds a command to detect devices and to list the devices which are actually detecable. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| * driver: Attach info callback to device, not to driverSascha Hauer2013-05-301-3/+2
| | | | | | | | | | | | | | | | Since the info is device specific and not driver specific, attach the callback to the device. This makes it possible to have a info callback for a device which does not have a driver attached. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | of: Add of_match_node functionSascha Hauer2013-05-201-1/+1
|/ | | | | | | To match a of_device_id arrays against a device_node. Same functionality as in the kernel. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Merge branch 'for-next/malloc-all-initcalls'Sascha Hauer2013-04-041-1/+1
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| * bus: Make struct device a pointerSascha Hauer2013-03-141-1/+1
| | | | | | | | | | | | | | | | struct bus_type contains an embedded struct device_d which is quite a big structure. Dynamically allocate this instead to save the space in the binary. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | Introduce console_platform_driver() macro and use it for serial driversAlexander Shiyan2013-03-141-0/+2
| | | | | | | | | | Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | Extend device_platform_driver macroAlexander Shiyan2013-03-141-5/+8
|/ | | | | | | | This patch extends device_platform_driver macro, so now we allow use it with various init levels and subsystems. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Make "dev_get_resource" publicly availableAlexander Shiyan2013-02-181-0/+4
| | | | | Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Introduce device_platform_driver() macroAlexander Shiyan2013-02-131-0/+12
| | | | | | | | | device_platform_driver() - Helper macro for drivers that don't do anything special in module registration. This eliminates a lot of boilerplate. Driver registration will called on device_initcall. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* consolidate print* in a single headerJean-Christophe PLAGNIOL-VILLARD2013-01-271-29/+0
| | | | | Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* drivers/base: fix corrupt device treeSascha Hauer2012-12-121-5/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | dev_add_child is a very unsafe function. If called multiple times it allows setting the same device to different parents thus corrupting the siblings list. This happens regularly since: | commit c2e568d19c5c34a05a1002d25280bf113b72b752 | Author: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> | Date: Sat Nov 3 16:11:05 2012 +0100 | | bus: add bus device | | automatically add it as parent of any bus device if none already specified | | we have now a nice output per bus If for example a FATfs is mounted this nice output per bus often ends with: > `---- fat0 > `---- 0 > `---- 0x86f0000087020031-0x86f000410df27124: /dev/<NULL> > `---- sram00 > `---- 0x00000000-0xffffffffffffffff: /dev/<NULL> > `---- 0x00000000-0xffffffffffffffff: /dev/<NULL> > unable to handle NULL pointer dereference at address 0x0000000c > pc : [<87f08a20>] lr : [<87f08a04>] > sp : 86eff8c0 ip : 87f3fbde fp : ffffffff > r10: ffffffff r9 : 00000000 r8 : 00000003 > r7 : 86f075b8 r6 : 00000002 r5 : ffffffec r4 : 86f07544 > r3 : 00000000 r2 : 43f900b4 r1 : 00000020 r0 : 00000005 > Flags: Nzcv IRQs off FIQs off Mode SVC_32 > [<87f08a20>] (do_devinfo_subtree+0x90/0x130) from [<87f08a90>] (do_devinfo_subtree+0x100/0x130) > > [<87f3e070>] (unwind_backtrace+0x0/0x90) from [<87f28514>] (panic+0x28/0x3c) > [<87f28514>] (panic+0x28/0x3c) from [<87f3e4b8>] (do_exception+0x10/0x14) > [<87f3e4b8>] (do_exception+0x10/0x14) from [<87f3e544>] (do_data_abort+0x2c/0x38) > [<87f3e544>] (do_data_abort+0x2c/0x38) from [<87f3e268>] (data_abort+0x48/0x60) This patch fixes this by adding a device to its parents children list in register_device so that dev_add_child is no longer needed. This function is removed from the tree. Now callers of register_device have to clearly set the parent *before* registering a device. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Reported-by: Jan Lübbe <jlu@pengutronix.de>
* Merge branch 'for-next/phylib'Sascha Hauer2012-12-071-0/+5
|\ | | | | | | | | Conflicts: drivers/net/phy/phy.c
| * driver: introduce device_probe to manully probe a deviceJean-Christophe PLAGNIOL-VILLARD2012-11-201-0/+5
| | | | | | | | | | | | | | | | This will expect a driver to be specified This is needed by the phylib the probe the generic phy if not driver found Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | Merge branch 'for-next/misc'Sascha Hauer2012-12-071-2/+2
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| * | bus_for_each_device/bus_for_each_driver: add () to allow use &busJean-Christophe PLAGNIOL-VILLARD2012-11-191-2/+2
| |/ | | | | | | | | Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* / bus: add bus deviceJean-Christophe PLAGNIOL-VILLARD2012-11-191-0/+2
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | automatically add it as parent of any bus device if none already specified we have now a nice output per bus barebox@Atmel at91sam9x5-ek:/ devices: `---- platform `---- atmel_usart0 `---- cs0 `---- atmel_usart1 `---- cs1 `---- mem0 `---- 0x00000000-0x07ffffff: /dev/ram0 `---- mem1 `---- 0x00000000-0x00007fff: /dev/sram0 `---- mem2 `---- 0x00000000-0x000037bf: /dev/defaultenv `---- mem3 `---- 0x00000000-0xfffffffe: /dev/mem `---- cs2 `---- w1-gpio `---- w1_bus0 `---- w1-2d-0 `---- 0x00000000-0x0000007f: /dev/ds24310 `---- w1-2d-1 `---- 0x00000000-0x0000007f: /dev/ds24311 `---- w1-23-0 `---- 0x00000000-0x000001ff: /dev/ds24330 `---- at91sam9x5cm `---- at91sam9x5ek `---- at91sam9x5dm `---- atmel_nand0 `---- nand0 `---- 0x00000000-0x1fffffff: /dev/nand0 `---- 0x00000000-0x0003ffff: /dev/at91bootstrap_raw `---- 0x00040000-0x0009ffff: /dev/self_raw `---- 0x000a0000-0x000bffff: /dev/env_raw `---- 0x000c0000-0x000dffff: /dev/env_raw1 `---- 0x00000000-0x0003ffff: /dev/nand0.at91bootstrap `---- 0x00040000-0x0009ffff: /dev/nand0.barebox `---- 0x000a0000-0x000bffff: /dev/nand0.bareboxenv `---- 0x000c0000-0x000dffff: /dev/nand0.bareboxenv2 `---- 0x000e0000-0x000fffff: /dev/nand0.oftree `---- 0x00100000-0x001fffff: /dev/nand0.free `---- 0x00200000-0x007fffff: /dev/nand0.kernel `---- 0x00800000-0x07ffffff: /dev/nand0.rootfs `---- 0x08000000-0x1fffffff: /dev/nand0.data `---- macb0 `---- miibus0 `---- eth0 `---- atmel_spi0 `---- mtd_dataflash0 `---- dataflash0 `---- 0x00000000-0x0041ffff: /dev/dataflash0 `---- atmel_mci0 `---- mci0 `---- 0x00000000-0x1d9bfffff: /dev/disk0 `---- 0x00100000-0x064fffff: /dev/disk0.0 `---- 0x06500000-0x1d9bfffff: /dev/disk0.1 `---- i2c-gpio0 `---- i2c0 `---- qt10700 `---- cs3 `---- mdio_bus `---- spi `---- i2c `---- w1_bus `---- fs `---- ramfs0 `---- devfs0 `---- net `---- global drivers: atmel_usart ramfs devfs fat macb Generic PHY atmel_nand mtd_dataflash m25p80 atmel_spi i2c-gpio mci atmel_mci qt1070 w1-gpio ds2431 ds2433 mem Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* driver: add support for requesting resource by nameJean-Christophe PLAGNIOL-VILLARD2012-10-301-0/+15
| | | | | | | this will allow to avoid issue with resource order Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* switch all platform_bus device/driver registering to ↵Jean-Christophe PLAGNIOL-VILLARD2012-10-041-0/+3
| | | | | | | | platform_driver/device_register now register_driver and register_device are for bus only usage. Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
* Merge branch 'for-next/remove-fsf-address'Sascha Hauer2012-10-031-4/+0
|\ | | | | | | | | | | Conflicts: drivers/net/miidev.c include/miidev.h
| * Treewide: remove address of the Free Software FoundationSascha Hauer2012-09-171-4/+0
| | | | | | | | | | | | | | The FSF address has changed in the past. Instead of updating it each time the address changes, just drop it completely treewide. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | driver: search device and driver based on the bus instead of allJean-Christophe PLAGNIOL-VILLARD2012-09-231-0/+12
| | | | | | | | | | | | | | This will allow reduce the number of driver and device to search on. Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | driver: register busJean-Christophe PLAGNIOL-VILLARD2012-09-231-0/+8
| | | | | | | | | | Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | of: add devicetree probing supportSascha Hauer2012-09-141-0/+10
| | | | | | | | | | | | | | This adds code to probe devices from a devicetree. Most helper functions are directly imported from Linux. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | driver: Add platform_device_id mechanismSascha Hauer2012-09-141-0/+9
| | | | | | | | | | | | | | | | It is common for drivers to handle multiple similar devices. On Linux the driver can distinguish between the devices using the platform_device_id mechanism. Introduce the same for barebox. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* | driver: rewrite dev_printf as a functionSascha Hauer2012-09-141-3/+3
|/ | | | | | | | | | Printing device context normally should be "driver instance:", but instead we printed the device name twice. This patch fixes this and as a bonus makes the binary a bit smaller. Instead of a '@' between driver and instance this function now prints a whitespace which is a bit more like Linux. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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