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>
Drivers need to get their driver data either from devicetree or the platform
information. It should matter for the driver where this data comes from, so
introduce a common function for it.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
It starts the switch and provides basic access to the registers.
This driver could also work with some other Micrel switches, possibly
with some small changes.
Signed-off-by: Jan Luebbe <jlu@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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>
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>
This patch adds a I2C bus on which the I2C devices and drivers register.
This makes it cleaner as I2C devices won't accidently end up probed by
a platform_device driver.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This patch adds a SPI bus on which the SPI devices and drivers register.
This makes it cleaner as SPI devices won't accidently end up probed by
a platform_device driver.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Upcoming patches will put I2C/SPI on their own busses with
spi_register_driver / i2c_register_driver which will only
be available if the subsystem is enabled. We could provide
static inlines, but it wouldn't make much sense to compile
a spi/i2c driver if the corresponding subsystem is disabled.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Upcoming patches will put I2C/SPI on their own busses with
spi_register_driver / i2c_register_driver which will only
be available if the subsystem is enabled. We could provide
static inlines, but it wouldn't make much sense to compile
a spi/i2c driver if the corresponding subsystem is disabled.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
If pdata is NULL smc911x_probe will crash. Checking the zero initialized
priv->shift results in default configuration if pdata is not set.
Signed-off-by: Jan Weitzel <j.weitzel@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
the check need to be inverted
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
For the size_t type the format specifier %zu or %zx must be used.
See Documentation/printk-formats.txt in the kernel for details.
Signed-off-by: Jan Luebbe <jlu@pengutronix.de>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The stmpe mfds can be connected via i2c and spi. This driver provides the basic
infrastructure for the i2c kind. It can be added as a normal i2c-device in the
board code. To enable functions a platform_data struct has to be provided, that
describes what parts of the chip are to be used.
Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
A function to calculate the frequency divider and digital filter sampling rate
for the 85xx processors is added to the i2c-imx driver. Hence, this driver is
usable on IMX and 85xx machines.
Signed-off-by: Renaud Barbier <renaud.barbier@ge.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The IMX i2c driver is to be used by SOCs on both the ARM and PPC architetures.
Use a more neutral name for the structure, function names and #define.
The driver name is now "i2c-fsl".
Signed-off-by: Renaud Barbier <renaud.barbier@ge.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
A string allocated by asprintf is not freed, so change it to a sprintf
with the preallocated buffer.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Board support units must use only the provided functions.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The mtdoob and mtdraw device don't clean up correctly.
Added a private data element to hold allocated memory.
Fix remove of mtdoob and mtdraw device.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
poll the READY bit in PMT_CTRL. Any other access to the device is
forbidden while this bit isn't set. Try for 100ms
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Use linux kernel chip detection from 3.5
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
detect if the bus is swapped and report a 32bit drivers is used on a 16bit bus
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
switch ipe337: to it at the same time to do not brake it
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This will allow to replace them depending on the platform data.
So we can specify shift and reg io witdh (16bit/32bit)
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
this make the driver more readable
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
miidev_wait_aneg() polled the wrong bit, so link detection did fail on
boards where the PHY had to come out of a powerdown mode.
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
In usb_hub_configure the hub is asked for its descriptor and among other things
its bPwrOn2PwrGood time. In the actual hub_power_on function this information
was not used and a hardcoded value was used instead. For some hubs this delay
is to short. So, use the delay the hub wants.
Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Sascha Hauer
Jan Luebbe
Jan Weitzel
Jean-Christophe PLAGNIOL-VILLARD
Steffen Trumtrar
Renaud Barbier
Alexander Shiyan
Alexander Aring
Wolfram Sang