gpio has to be initialized with an invalid gpio number. 0 is a valid
number and it will be requested and used by the driver.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
When a device probe fails the device is removed from the active list.
If then the device is unregistered afterwards it is removed from the
active list again resulting in a crash. To fix this initialize the
devices active list entry when removing it from the active list.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Large SPI-NOR (>2MB) chips reuire more than 40 seconds to perform
all-chip erase. This patch adapts
09b6a377687b885565339e60bc62566433a0406f from Linux kernel, which
implements simple heuristics in order to calculate appropriate wait
time (see orignal commit's description for more details of the fix)
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This adds initial regmap support. Function prototypes are from
the Kernel, the implemention is mostly rewritten. Currently the
regmap support is limited to the bare minimum to get started.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The HABv4 functions need access a part of the ROM which is
located in the zero page. This must be done early, before the
MMU has been configured and the zero page has been set to faulting.
The HAB functions currently use cpu_is_imxxy(). At the stage where
HAB is called the i.MX CPU type variable is not yet initialized,
so this code only works when only one i.MX type is enabled and
cpu_is_imxxy() are compile time constants.
To fix HAB support when more than one i.MX type is enabled make the
HAB status function SoC specific so that we can drop the use of
cpu_is_imxxy().
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Based on kernel commit d2fd719bcb0e ("net/phy: micrel: Add workaround
for bad autoneg") by Nathan Sullivan <nathan.sullivan@ni.com>:
Very rarely, the KSZ9031 will appear to complete autonegotiation, but
will drop all traffic afterwards. When this happens, the idle error
count will read 0xFF after autonegotiation completes. Reset the PHY
when in that state.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Based on kernel commit 6270e1ae804a ("net/phy: micrel: Center FLP
timing at 16ms") by Jaeden Amero <jaeden.amero@ni.com>:
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Based on kernel commit 3c9a9f7fb0ee ("net/phy: micrel: Be more const
correct") by Jaeden Amero <jaeden.amero@ni.com>:
In a few places in this driver, we weren't using const where we could
have. Use const more.
In addition, change the arrays of strings in ksz9031_config_init() to be
not only const, but also static.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Based on kernel commit 00aee095000c ("net: phy: micrel: use BIT macro")
by Johan Hovold <johan@kernel.org>.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Based on kernel commit 32d73b144eac ("net: phy: micrel: Staticise
ksz8873mll_read_status()") by Jingoo Han <jg1.han@samsung.com>:
ksz8873mll_read_status() is used only in this file.
Fix the following sparse warning:
drivers/net/phy/micrel.c:147:5: warning: symbol 'ksz8873mll_read_status' was not declared. Should it be static?
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit changes the behaviour of the 'miitool'. Now in order to show
PHY's link information 'miitool' should be invoked as such:
miitool -s [PHY]
Also, implment code to allow to register a dummy PHY device in order to
be able to perform raw MDIO bus access.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Change the way PHY devices are named upon creation. This commit replaces
sequentialy numbered "/dev/phy%d" with "/dev/mdio%d-phy%02x". This way
it is significanlty easier to identify which PHY in real-life (e.g. on a
schematic) corresponds to which device in /dev.
Also, replace asprintf with xasprintf to provide some form of memory
allocation failure checking.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Add mdiobus_get_bus() -- a function to get a MDIO bus by its number
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Change dev_info to dev_dbg in mdiobus_detect for displaying phy's
registration status as it is in of_mdiobus_register_phy(). While that
information is useful for debugging, user doesn't really need to see
that information every time they call miitool for the first time.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Port bitbanged MDIO framework and gpiolib MDIO bus driver that uses it
from Linux kernel.
Signed-off-by: Andrey Gusakov <andrey.gusakov@cogentembedded.com>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Move Linux wait queue related definitions to its original place.
Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Move mutex related defines to its original place.
Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
There's not only HABv4 but also HABv3. No need to put the corresponding
code in separate directories, so rename the habv4 directory to hab.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Move spinlock related definitions to its original place.
Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
printf now supports printing resource_size_t directly, convert
all users of the previously used PRINTF_CONVERSION_RESOURCE over
to %pa.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The gpio-keys driver takes ascii key codes from platform_data and Linux
keycodes from device tree. Convert the ascii keys over to Linux
keycodes to get rid of the special cases in the driver.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The preparations are done in previous patches, now we only have
to add the device tree compatible and drio the check for platform_data.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Future additions will make the function too big to live as a static
inline function. Move to a C file and while at it, move matrix_keypad.h
to include/input/ where it belongs to.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Currently all input driver register themselves as consoles. Consoles are
fine for typing text, but they do not allow to ask for the current
pressed state of buttons or keypads. They also do not support non
printable keys like the function keys.
This patch adds a simple input core. On the driver side it supports
input_report_key_event() to report events (button presses and releases).
On the consumer side it allows getting the current button status via
input_key_get_status(). Also an event driven interface is available
which calls a callback whenever an input event is received.
The input core also registers a console for all registered input
devices which handles passing events to the console and stuff like key
repetition, so this can be removed from the drivers once they are
converted to the input core.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The reset controller structure is zero initialized in the OF
reset case, but as 0 is also a valid GPIO number the current
code tries to assert/deassert the GPIO instead of calling into
the reset controller device.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
