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[v4,12/13] dt-bindings: spi: atmel-quadspi: QuadSPI driver for Microchip SAM9X60

Message ID 20190204100910.26701-13-tudor.ambarus@microchip.com (mailing list archive)
State New, archived
Headers show
Series spi: atmel-quadspi: introduce sam9x60 qspi controller | expand

Commit Message

Tudor Ambarus Feb. 4, 2019, 10:10 a.m. UTC 
From: Tudor Ambarus <tudor.ambarus@microchip.com>

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@microchip.com>
Reviewed-by: Boris Brezillon <bbrezillon@kernel.org>
---
v4: collect R-b
v3: "pclk" was made mandatory in previous patch. Reword clock
descriptions.
v2:
- 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 mbox series

Patch

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>.