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-rw-r--r--Documentation/devicetree/bindings/spi/nvidia,spi-tegra114.txt5
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/spi/nvidia,spi-tegra114.txt b/Documentation/devicetree/bindings/spi/nvidia,spi-tegra114.txt
index 2d961d8e3d69..e3c264d90502 100644
--- a/Documentation/devicetree/bindings/spi/nvidia,spi-tegra114.txt
+++ b/Documentation/devicetree/bindings/spi/nvidia,spi-tegra114.txt
@@ -12,6 +12,11 @@ Recommended properties:
Documentation/devicetree/bindings/spi/spi-bus.txt
Optional properties:
- nvidia,clock-always-on: Enable clock of spi always.
+- nvidia,polling-mode: Use polling method instead of interrupts
+- nvidia,boost-reg-access: In T210 and earlier chips SPI register access
+ is dependant on SPI clock frequency. Setting this option would
+ allow SPI clock frequency to be boosted. Benefitial when running
+ SPI at low frequencies with cpu based transfers. Default false.
spi-client device controller properties:
- nvidia,enable-hw-based-cs: (Boolean) Use the HW based CS if enabled.