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| author | Sascha Hauer <s.hauer@pengutronix.de> | 2019-04-05 14:51:50 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2019-04-08 10:16:55 +0200 |
| commit | 1dc748b3b202cadf9b799874d9af8d441ee556bc (patch) | |
| tree | 58fd3c90a40e2d0128b0c7f36d63d7fc126bb20d /dts/Bindings/gpio/gpio.txt | |
| parent | 9688b49cd3bc0b61a019e8e1311236c9975a0777 (diff) | |
| download | barebox-1dc748b3b202cadf9b799874d9af8d441ee556bc.tar.gz barebox-1dc748b3b202cadf9b799874d9af8d441ee556bc.tar.xz | |
dts: update to v5.1-rc1
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'dts/Bindings/gpio/gpio.txt')
| -rw-r--r-- | dts/Bindings/gpio/gpio.txt | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/dts/Bindings/gpio/gpio.txt b/dts/Bindings/gpio/gpio.txt index f0ba154b57..a8895d339b 100644 --- a/dts/Bindings/gpio/gpio.txt +++ b/dts/Bindings/gpio/gpio.txt @@ -67,6 +67,18 @@ Optional standard bitfield specifiers for the last cell: https://en.wikipedia.org/wiki/Open_collector - Bit 3: 0 means the output should be maintained during sleep/low-power mode 1 means the output state can be lost during sleep/low-power mode +- Bit 4: 0 means no pull-up resistor should be enabled + 1 means a pull-up resistor should be enabled + This setting only applies to hardware with a simple on/off + control for pull-up configuration. If the hardware has more + elaborate pull-up configuration, it should be represented + using a pin control binding. +- Bit 5: 0 means no pull-down resistor should be enabled + 1 means a pull-down resistor should be enabled + This setting only applies to hardware with a simple on/off + control for pull-down configuration. If the hardware has more + elaborate pull-down configuration, it should be represented + using a pin control binding. 1.1) GPIO specifier best practices ---------------------------------- |