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author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-24 13:56:24 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-24 13:56:24 -0700 |
commit | be122abe4bcd6d39b37892daae28c8bf5e4030fc (patch) | |
tree | e8ad84c41c2acde27c77fa212b8865cd3acfe6fb /drivers/of | |
parent | b343c8beec664ef6f0e9964d3001c7c7966331ae (diff) | |
parent | 1e8a52e18cfb381bc9cc1f0b720540364d2a6edd (diff) | |
download | linux-be122abe4bcd6d39b37892daae28c8bf5e4030fc.tar.bz2 |
Merge tag 'spi-for-linus' of git://git.secretlab.ca/git/linux-2.6
Pull SPI changes from Grant Likely:
"Bug fixes and new features for SPI device drivers. Also move device
tree support code out of drivers/of and into drivers/spi/spi.c where
it makes more sense."
* tag 'spi-for-linus' of git://git.secretlab.ca/git/linux-2.6:
spi: By default setup spi_masters with 1 chipselect and dynamics bus number
SPI: PRIMA2: use the newest APIs of PINCTRL to fix compiling errors
spi/spi-fsl-spi: reference correct pdata in fsl_spi_cs_control
spi: refactor spi-coldfire-qspi to use SPI queue framework.
spi/omap2-mcspi: convert to the pump message infrastructure
spi/rspi: add dmaengine support
spi/topcliff: use correct __devexit_p annotation
spi: Dont call prepare/unprepare transfer if not populated
spi/ep93xx: clean probe/remove routines
spi/devicetree: Move devicetree support code into spi directory
spi: use module_pci_driver
spi/omap2-mcspi: Trivial optimisation
spi: omap2-mcspi: add support for pm_runtime autosuspend
spi/omap: Remove bus_num usage for instance index
OMAP : SPI : use devm_* functions
spi: omap2-mcspi: convert to module_platform_driver
spi: omap2-mcspi: make it behave as a module
Diffstat (limited to 'drivers/of')
-rw-r--r-- | drivers/of/Kconfig | 6 | ||||
-rw-r--r-- | drivers/of/Makefile | 1 | ||||
-rw-r--r-- | drivers/of/of_spi.c | 99 |
3 files changed, 0 insertions, 106 deletions
diff --git a/drivers/of/Kconfig b/drivers/of/Kconfig index 8e84ce9765a9..f623f17a0b9f 100644 --- a/drivers/of/Kconfig +++ b/drivers/of/Kconfig @@ -67,12 +67,6 @@ config OF_NET depends on NETDEVICES def_bool y -config OF_SPI - def_tristate SPI - depends on SPI && !SPARC - help - OpenFirmware SPI accessors - config OF_MDIO def_tristate PHYLIB depends on PHYLIB diff --git a/drivers/of/Makefile b/drivers/of/Makefile index aa90e602c8a7..0040d1858665 100644 --- a/drivers/of/Makefile +++ b/drivers/of/Makefile @@ -7,7 +7,6 @@ obj-$(CONFIG_OF_DEVICE) += device.o platform.o obj-$(CONFIG_OF_GPIO) += gpio.o obj-$(CONFIG_OF_I2C) += of_i2c.o obj-$(CONFIG_OF_NET) += of_net.o -obj-$(CONFIG_OF_SPI) += of_spi.o obj-$(CONFIG_OF_SELFTEST) += selftest.o obj-$(CONFIG_OF_MDIO) += of_mdio.o obj-$(CONFIG_OF_PCI) += of_pci.o diff --git a/drivers/of/of_spi.c b/drivers/of/of_spi.c deleted file mode 100644 index 6dbc074e4876..000000000000 --- a/drivers/of/of_spi.c +++ /dev/null @@ -1,99 +0,0 @@ -/* - * SPI OF support routines - * Copyright (C) 2008 Secret Lab Technologies Ltd. - * - * Support routines for deriving SPI device attachments from the device - * tree. - */ - -#include <linux/module.h> -#include <linux/of.h> -#include <linux/device.h> -#include <linux/spi/spi.h> -#include <linux/of_irq.h> -#include <linux/of_spi.h> - -/** - * of_register_spi_devices - Register child devices onto the SPI bus - * @master: Pointer to spi_master device - * - * Registers an spi_device for each child node of master node which has a 'reg' - * property. - */ -void of_register_spi_devices(struct spi_master *master) -{ - struct spi_device *spi; - struct device_node *nc; - const __be32 *prop; - int rc; - int len; - - if (!master->dev.of_node) - return; - - for_each_child_of_node(master->dev.of_node, nc) { - /* Alloc an spi_device */ - spi = spi_alloc_device(master); - if (!spi) { - dev_err(&master->dev, "spi_device alloc error for %s\n", - nc->full_name); - spi_dev_put(spi); - continue; - } - - /* Select device driver */ - if (of_modalias_node(nc, spi->modalias, - sizeof(spi->modalias)) < 0) { - dev_err(&master->dev, "cannot find modalias for %s\n", - nc->full_name); - spi_dev_put(spi); - continue; - } - - /* Device address */ - prop = of_get_property(nc, "reg", &len); - if (!prop || len < sizeof(*prop)) { - dev_err(&master->dev, "%s has no 'reg' property\n", - nc->full_name); - spi_dev_put(spi); - continue; - } - spi->chip_select = be32_to_cpup(prop); - - /* Mode (clock phase/polarity/etc.) */ - if (of_find_property(nc, "spi-cpha", NULL)) - spi->mode |= SPI_CPHA; - if (of_find_property(nc, "spi-cpol", NULL)) - spi->mode |= SPI_CPOL; - if (of_find_property(nc, "spi-cs-high", NULL)) - spi->mode |= SPI_CS_HIGH; - - /* Device speed */ - prop = of_get_property(nc, "spi-max-frequency", &len); - if (!prop || len < sizeof(*prop)) { - dev_err(&master->dev, "%s has no 'spi-max-frequency' property\n", - nc->full_name); - spi_dev_put(spi); - continue; - } - spi->max_speed_hz = be32_to_cpup(prop); - - /* IRQ */ - spi->irq = irq_of_parse_and_map(nc, 0); - - /* Store a pointer to the node in the device structure */ - of_node_get(nc); - spi->dev.of_node = nc; - - /* Register the new device */ - request_module(spi->modalias); - rc = spi_add_device(spi); - if (rc) { - dev_err(&master->dev, "spi_device register error %s\n", - nc->full_name); - spi_dev_put(spi); - } - - } -} -EXPORT_SYMBOL(of_register_spi_devices); |