dt-bindings: spi: atmel-quadspi: make "pclk" mandatory

Naming clocks is a good practice. Make "pclk" madatory even if
we support unnamed clock in the driver, to be backward compatible
with old DTs.

Suggested-by: Boris Brezillon <bbrezillon@kernel.org>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Boris Brezillon <bbrezillon@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/Documentation/devicetree/bindings/spi/atmel-quadspi.txt b/Documentation/devicetree/bindings/spi/atmel-quadspi.txt
index e9dae62..50bd257 100644 (file)
--- a/Documentation/devicetree/bindings/spi/atmel-quadspi.txt
+++ b/Documentation/devicetree/bindings/spi/atmel-quadspi.txt
@@ -9,6 +9,7 @@ Required properties:
                   - qspi_mmap: memory mapped address space
 - interrupts:     Should contain the interrupt for the device.
 - clocks:         The phandle of the clock needed by the QSPI controller.
+- clock-names:    Should contain "pclk" for the peripheral clock.
 - #address-cells: Should be <1>.
 - #size-cells:    Should be <0>.
 
@@ -20,6 +21,7 @@ spi@f0020000 {
        reg-names = "qspi_base", "qspi_mmap";
        interrupts = <52 IRQ_TYPE_LEVEL_HIGH 7>;
        clocks = <&pmc PMC_TYPE_PERIPHERAL 52>;
+       clock-names = "pclk";
        #address-cells = <1>;
        #size-cells = <0>;
        pinctrl-names = "default";