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Simon Glass
3669e0e759
dm: gpio: Add better functions to request GPIOs ...
At present U-Boot sort-of supports the standard way of reading GPIOs from
device tree nodes, but the support is incomplete, a bit clunky and only
works for GPIO bindings where #gpio-cells is 2.
Add new functions to request GPIOs, taking full account of the device
tree binding. These permit requesting a GPIO with a simple call like:
gpio_request_by_name(dev, "cd-gpios", 0, &desc, GPIOD_IS_IN);
This will request the GPIO, looking at the device's node which might be
this, for example:
cd-gpios = <&gpio TEGRA_GPIO(B, 3) GPIO_ACTIVE_LOW>;
The GPIO will be set to input mode in this case and polarity will be
honoured by the GPIO calls.
It is also possible to request and free a list of GPIOs.
Signed-off-by: Simon Glass <sjg@chromium.org>
10 years ago
..
bios_emulator
bios_emulator: Add some VESA interface debugging
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bootcount
…
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ddr/ fsl
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demo
…
dfu
dfu: dfu_get_buf: check the value of env dfu_bufsiz before use
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dma
dma: keystone_nav: remove spurious qm_cfg verification
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fpga
fpga: xilinx: Show fpga info if defined
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gpio
dm: gpio: Add better functions to request GPIOs
10 years ago
hwmon
…
i2c
i2c: UniPhier: add driver for UniPhier FIFO-builtin i2c controller
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input
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memory
…
misc
i2c_eeprom: include <linux/err.h> to fix build error
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mmc
Merge branch 'master' of http://git.denx.de/u-boot-sunxi
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mtd
powerpc: ppc4xx: remove PPChameleonEVB, CATcenter boards
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pci: tegra: Fix port information parsing
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pwm
…
qe
qe/deep-sleep: modify qe deep-sleep for generic board
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rtc
x86: rtc: mc146818: Add helpers to read/write CMOS RAM
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serial
Merge branch 'zynq' of git://www.denx.de/git/u-boot-microblaze
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soc
…
sound
…
spi
x86: spi: Add device tree support
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thermal
thermal: imx_thermal: Do not display calibration data
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tpm
Replace <compiler.h> with <linux/compiler.h>
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twserial
…
usb
usb: eth: asix88179: add ability to modify MAC address
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video
x86: video: Add support for CONFIG_CONSOLE_SCROLL_LINES
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watchdog
…
Kconfig
…
Makefile
Merge branch 'master' of git://git.denx.de/u-boot-fsl-qoriq
11 years ago
Simon Glass
3669e0e759