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| author | Christian Ruppert <christian.ruppert@abilis.com> | 2013-06-26 10:55:06 +0200 |
|---|---|---|
| committer | Wolfram Sang <wsa@the-dreams.de> | 2013-06-26 16:02:06 +0200 |
| commit | 9803f868944e879c4623c0d910e81f1ae89ccfb4 (patch) | |
| tree | 1dc609539e707c857b7a3e38104a6b0063847a41 /Documentation/devicetree/bindings/i2c/i2c-designware.txt | |
| parent | i2c: mv64xxx: Set bus frequency to 100kHz if clock-frequency is not provided (diff) | |
| download | linux-9803f868944e879c4623c0d910e81f1ae89ccfb4.tar.xz linux-9803f868944e879c4623c0d910e81f1ae89ccfb4.zip | |
i2c-designware: make SDA hold time configurable
This patch makes the SDA hold time configurable through device tree.
Signed-off-by: Christian Ruppert <christian.ruppert@abilis.com>
Signed-off-by: Pierrick Hascoet <pierrick.hascoet@abilis.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com> for arch/arc bits
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Diffstat (limited to 'Documentation/devicetree/bindings/i2c/i2c-designware.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/i2c/i2c-designware.txt | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/i2c/i2c-designware.txt b/Documentation/devicetree/bindings/i2c/i2c-designware.txt index e42a2ee233e6..7fd7fa25e9b0 100644 --- a/Documentation/devicetree/bindings/i2c/i2c-designware.txt +++ b/Documentation/devicetree/bindings/i2c/i2c-designware.txt @@ -10,6 +10,10 @@ Recommended properties : - clock-frequency : desired I2C bus clock frequency in Hz. +Optional properties : + - i2c-sda-hold-time-ns : should contain the SDA hold time in nanoseconds. + This option is only supported in hardware blocks version 1.11a or newer. + Example : i2c@f0000 { @@ -20,3 +24,14 @@ Example : interrupts = <11>; clock-frequency = <400000>; }; + + i2c@1120000 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "snps,designware-i2c"; + reg = <0x1120000 0x1000>; + interrupt-parent = <&ictl>; + interrupts = <12 1>; + clock-frequency = <400000>; + i2c-sda-hold-time-ns = <300>; + }; |