[PATCH v5 12/13] dt-bindings: spi: atmel-quadspi: QuadSPI driver for Microchip SAM9X60

From: Tudor.Ambarus
Date: Tue Feb 05 2019 - 10:44:28 EST

From: Tudor Ambarus <tudor.ambarus@xxxxxxxxxxxxx>

The sam9x60 qspi controller uses 2 clocks, one for the peripheral register
access, the other for the qspi core and phy. Both are mandatory.

Signed-off-by: Tudor Ambarus <tudor.ambarus@xxxxxxxxxxxxx>
Reviewed-by: Boris Brezillon <bbrezillon@xxxxxxxxxx>
v5: no change
v4: collect R-b
v3: "pclk" was made mandatory in previous patch. Reword clock
- make "pclk" mandatory even for sama5d2. Unnamed clk will be
supported in the driver.
- drop unneeded example

Documentation/devicetree/bindings/spi/atmel-quadspi.txt | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/spi/atmel-quadspi.txt b/Documentation/devicetree/bindings/spi/atmel-quadspi.txt
index 50bd257e6826..7c40ea694352 100644
--- a/Documentation/devicetree/bindings/spi/atmel-quadspi.txt
+++ b/Documentation/devicetree/bindings/spi/atmel-quadspi.txt
@@ -1,15 +1,19 @@
* Atmel Quad Serial Peripheral Interface (QSPI)

Required properties:
-- compatible: Should be "atmel,sama5d2-qspi".
+- compatible: Should be one of the following:
+ - "atmel,sama5d2-qspi"
+ - "microchip,sam9x60-qspi"
- reg: Should contain the locations and lengths of the base registers
and the mapped memory.
- reg-names: Should contain the resource reg names:
- qspi_base: configuration register address space
- 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.
+- clocks: Should reference the peripheral clock and the QSPI system
+ clock if available.
+- clock-names: Should contain "pclk" for the peripheral clock and "qspick"
+ for the system clock when available.
- #address-cells: Should be <1>.
- #size-cells: Should be <0>.