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Diffstat (limited to 'dts/Bindings/spi/spi-fsl-lpspi.txt')
-rw-r--r--dts/Bindings/spi/spi-fsl-lpspi.txt10
1 files changed, 8 insertions, 2 deletions
diff --git a/dts/Bindings/spi/spi-fsl-lpspi.txt b/dts/Bindings/spi/spi-fsl-lpspi.txt
index 6cc3c6f..e71b81a 100644
--- a/dts/Bindings/spi/spi-fsl-lpspi.txt
+++ b/dts/Bindings/spi/spi-fsl-lpspi.txt
@@ -7,7 +7,11 @@ Required properties:
- reg : address and length of the lpspi master registers
- interrupt-parent : core interrupt controller
- interrupts : lpspi interrupt
-- clocks : lpspi clock specifier
+- clocks : lpspi clock specifier. Its number and order need to correspond to the
+ value in clock-names.
+- clock-names : Corresponding to per clock and ipg clock in "clocks"
+ respectively. In i.MX7ULP, it only has per clk, so use CLK_DUMMY
+ to fill the "ipg" blank.
- spi-slave : spi slave mode support. In slave mode, add this attribute without
value. In master mode, remove it.
@@ -18,6 +22,8 @@ lpspi2: lpspi@40290000 {
reg = <0x40290000 0x10000>;
interrupt-parent = <&intc>;
interrupts = <GIC_SPI 28 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&clks IMX7ULP_CLK_LPSPI2>;
+ clocks = <&clks IMX7ULP_CLK_LPSPI2>,
+ <&clks IMX7ULP_CLK_DUMMY>;
+ clock-names = "per", "ipg";
spi-slave;
};