Add zynq_gpio_get_function() which return status on gpio pin.
This function enables gpio status command.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
With the addition of GPIO_ACTIVE_LOW parsing in gpio-uclass,
the Exynos/S5P gpio driver doesn't need a custom xlate routine.
Signed-off-by: Eric Nelson <eric@nelint.com>
Acked-by: Simon Glass <sjg@chromium.org>
Acked-by: Minkyu Kang <mk7.kang@samsung.com>
With the addition of GPIO_ACTIVE_LOW parsing in gpio-uclass,
the Rockchip gpio driver doesn't need a custom xlate routine.
Signed-off-by: Eric Nelson <eric@nelint.com>
Acked-by: Simon Glass <sjg@chromium.org>
With the addition of GPIO_ACTIVE_LOW parsing in gpio-uclass,
the pic32 gpio driver doesn't need a custom xlate routine.
Signed-off-by: Eric Nelson <eric@nelint.com>
Acked-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Purna Chandra Mandal <purna.mandal@microchip.com>
With the addition of GPIO_ACTIVE_LOW parsing in gpio-uclass,
the omap gpio driver doesn't need a custom xlate routine.
Signed-off-by: Eric Nelson <eric@nelint.com>
Acked-by: Simon Glass <sjg@chromium.org>
With the addition of GPIO_ACTIVE_LOW parsing in gpio-uclass,
the intel_broadwell driver doesn't need a custom xlate routine.
Signed-off-by: Eric Nelson <eric@nelint.com>
Acked-by: Simon Glass <sjg@chromium.org>
Many drivers use a common form of offset + flags for device
tree nodes. e.g.:
<&gpio1 2 GPIO_ACTIVE_LOW>
This patch adds a common implementation of this type of parsing
and calls it when a gpio driver doesn't supply its' own xlate
routine.
This will allow removal of the driver-specific versions in a
handful of drivers and simplify the addition of new drivers.
Signed-off-by: Eric Nelson <eric@nelint.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Simon Glass <sjg@chromium.org>
Introduce driver to support "fairchild,74hc595" devices.
1. Take linux drivers/drivers/gpio/gpio-74x164.c as reference.
2. Following the naming used in Linux driver with gen_7x164 as the prefix.
3. Enable CONFIG_DM_74X164 to use this driver.
4. Follow Documentation/devicetree/bindings/gpio/gpio-74x164.txt to add device
nodes
5. Tested on i.MX6 UltraLite with 74LV595 using gpio command and oscillograph.
Signed-off-by: Peng Fan <van.freenix@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Chin Liang See <clsee@altera.com>
Cc: Bhuvanchandra DV <bhuvanchandra.dv@toradex.com>
Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Introduce a new driver that supports driver model for pca953x.
The pca953x chips are used as I2C I/O expanders.
This driver is designed to support the following chips:
"
4 bits: pca9536, pca9537
8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
pca9556, pca9557, pca9574, tca6408, xra1202
16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
tca6416
24 bits: tca6424
40 bits: pca9505, pca9698
"
But for now this driver only supports max 24 bits and pca953x compatible
chips. pca957x compatible chips are not supported now.
These can be addressed when we need to add such support for the different
chips.
This driver has been tested on i.MX6 SoloX Sabreauto board with max7310
i2c expander using gpio command as following:
=>gpio status -a
Bank gpio@30_:
gpio@30_0: input: 1 [ ]
=> dm tree:
i2c [ ] | | `-- i2c@021a8000
gpio [ ] | | |-- gpio@30
gpio [ ] | | `-- gpio@32
Signed-off-by: Peng Fan <van.freenix@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Wenyou Yang <wenyou.yang@atmel.com>
Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Cc: Purna Chandra Mandal <purna.mandal@microchip.com>
Cc: Thomas Chou <thomas@wytron.com.tw>
Cc: Bhuvanchandra DV <bhuvanchandra.dv@toradex.com>
Cc: Andrea Scian <andrea.scian@dave.eu>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Acked-by: Simon Glass <sjg@chromium.org>
Tested-by: Michal Simek <michal.simek@xilinx.com> #on ZynqMP zcu102
If get_dev_addr fails it will return FDT_ADDR_T_NONE and:
>>> "priv->pid == 4294967295U" is always false regardless of the values of its operands. This occurs as the logical operand of if.
Cc: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Reported-by: Coverity (CID: 143913)
Signed-off-by: Tom Rini <trini@konsulko.com>
Warnings:
w+../drivers/gpio/pca953x.c: In function ‘do_pca953x’:
w+../drivers/gpio/pca953x.c:220:5: warning: cast from pointer to integer
of different size [-Wpointer-to-int-cast]
w+../drivers/gpio/pca953x.c:233:10: warning: cast from pointer to
integer of different size [-Wpointer-to-int-cast]
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Enable ZYNQ_GPIO for ZynqMP using Kconfig. It enables the GPIO
driver support for ZynqMP.
Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Move all the gpio definitions to driver file as
there is no use of them in other files.
Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Remove non driver model support as it moved
to driver model. Dont need non driver model
anymore.
Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Enable DM GPIO and ZYNQ GPIO using kconfig instead of the board
config file.
Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
This patch adds the missing configuration of the output value to the
gpio_direction_output() function. Without this, calling
gpio_direction_output() does not set the out-value at all and only
configures the gpio as output.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Kevin Smith <kevin.smith@elecsyscorp.com>
Reviewed-by: Kevin Smith <kevin.smith@elecsyscorp.com>
This driver supports GPIOs present on PM8916 PMIC.
There are 2 device drivers inside:
- GPIO driver (4 "generic" GPIOs)
- Keypad driver that presents itself as GPIO with 2 inputs (power and reset)
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
Add support for gpio controllers on Qualcomm Snapdragon devices.
This devices are usually called Top Level Mode Multiplexing in
Qualcomm documentation.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
Currently, fdtdec_get_addr_size() does not support the address
translation, so it cannot handle device trees with non-straight
"ranges" properties. (This would be a problem with DTS for UniPhier
ARMv8 SoCs.)
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
VBUS drive is supported on AXP221 and later PMICs. Rework the macros
so we can support this on later PMICs without too much work.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This patch adds a DM GPIO driver for the Marvell MVEBU SoCs. There are
other non-DM drivers that might be used on these platforms. But this
patch creates a new DM driver. Which will be used by all Armada XP/38x
boards. Other MVEBU SoC (Kirkwood / Orion) may follow once they
support DM as well.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Dirk Eibach <dirk.eibach@gdsys.cc>
Cc: Phil Sutter <phil@nwl.cc>
Cc: Kevin Smith <kevin.smith@elecsyscorp.com>
Cc: Luka Perkov <luka.perkov@sartura.hr>
Cc: Tom Rini <trini@konsulko.com>
Reviewed-by: Kevin Smith <kevin.smith@elecsyscorp.com>
Tested-by: Kevin Smith <kevin.smith@elecsyscorp.com>
Signed-off-by: Stefan Roese <sr@denx.de>
The kernel has different compatible strings for the pio block
because the pin-muxing is different on all the different SoCs,
but sunxi_gpio.c only support the basic gpio functionality, which
is identical everywhere. Add the missing compatible strings for
various SoC models.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
Add a GPIO driver for the GPIO peripheral found on broadwell devices.
Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Bin Meng <bmeng.cn@gmail.com>
We don't need this anymore - we can use device tree and the new pinconfig
driver instead.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Rather than setting up the pin configuration in the GPIO driver, use the
new pinctrl driver to do it.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
The Intel GPIO driver can set up the GPIO pin mapping when the first GPIO
is probed. However, it assumes that the first GPIO to be probed is in the
first GPIO bank. If this is not the case then the init will write to the
wrong registers.
Fix this. Also add a note that this code is deprecated. We should move to
using device tree instead.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Some functions do not change the struct gpio_desc parameter. Update these to
use const so this is clear.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
We can use GPIOs as binary digits for reading 'strapping' values. Each GPIO
is assigned a single bit and can be set high or low on the circuit board. We
already have a legacy function for reading these values. Add one that
supports driver model.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This GPIO controller device is used on UniPhier SoCs.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Simon Glass <sjg@chromium.org>
Base addresses for GPIOs could be different for different socs, this
patch moves the base addresses from driver to the soc specific location.
Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
This patch removes the gpio clock enable from gpio driver & move it in the
board code, making it possible to use the gpio driver with other socs.
Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
The tegra GPIO controller has two ways of reading the value of a GPIO. It
can supply the 'input' value (which is the value read from the pin) and the
'output' value (which is the value being driven from the pin. With a GPIO
set to output mode, the 'input' value is always low which is not very
useful.
This has the unfortunate result that setting a GPIO high still leaves it
showing as low in the 'gpio status' command.
Adjust the driver to check which direction the GPIO is set to, then read
the value from the appropriate register: 'input' for input GPIOs, 'output'
for output GPIOs.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Joe Hershberger <joe.hershberger@ni.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
Correct spelling of "U-Boot" shall be used in all written text
(documentation, comments in source files etc.).
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Minkyu Kang <mk7.kang@samsung.com>
At present this GPIO driver still uses the legacy PCI API. Now that
we have proper PCH drivers we can use those to obtain the information
we need. While the device tree has nodes for the GPIO peripheral it is
not in the right place. It should be on the PCI bus as a sub-peripheral
of the PCH device.
Update the device tree files to show the GPIO controller within the PCH,
so that PCI access works as expected. This also adds '#address-cells'
and '#size-cells' to the PCH node.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
All boards using this driver are with device tree support,
hence drop the legacy code in driver to have a pure DT solution.
Signed-off-by: Bhuvanchandra DV <bhuvanchandra.dv@toradex.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
In PIC32 GPIO controller is part of PIC32 pin controller.
PIC32 has ten independently programmable ports and each with multiple pins.
Each of these pins can be configured and used as GPIO, provided they
are not in use for other peripherals.
Signed-off-by: Purna Chandra Mandal <purna.mandal@microchip.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
BUILD_BUG_* macros have been defined in several headers. It would
be nice to collect them in include/linux/bug.h like Linux.
This commit is cherry-picking useful macros from include/linux/bug.h
of Linux 4.4.
I did not import BUILD_BUG_ON_MSG() because it would not work if it
is used with include/common.h in U-Boot. I'd like to postpone it
until the root cause (the "error()" macro in include/common.h causes
the name conflict with "__attribute__((error()))") is fixed.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Provide this method so that 'gpio status' works fully. It now shows
whether a pin is used for input, output or some other function.
Signed-off-by: Simon Glass <sjg@chromium.org>
For SPL we don't really need sprintf() and with tiny-printf this is not
available. Allow this to be dropped in SPL when using tiny-printf.
Signed-off-by: Simon Glass <sjg@chromium.org>
In a number of places we had wordings of the GPL (or LGPL in a few
cases) license text that were split in such a way that it wasn't caught
previously. Convert all of these to the correct SPDX-License-Identifier
tag.
Signed-off-by: Tom Rini <trini@konsulko.com>
Override the default name_to_gpio() function with one that
accepts strings of the form bank:pin. If a colon is present
in the provided name, it behaves like the default version.
This lets the "gpio" command work with sane names rather than
requiring the user to enter the bank/pin composite in decimal.
Signed-off-by: Mans Rullgard <mans@mansr.com>
Reviewed-by: Stefano Babic <sbabic@denx.de>
