2020-04-24 10:46:07

by Dilip Kota

Subject: [PATCH 3/4] dt-bindings: spi: Add support to Lightning Mountain SoC

Add support to SPI controller on Intel Atom based Lightning Mountain
SoC which reuses the Lantiq SPI controller IP.

Signed-off-by: Dilip Kota <[email protected]>
---
.../devicetree/bindings/spi/spi-lantiq-ssc.txt | 21 +++++++++++++++++++--
1 file changed, 19 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/spi/spi-lantiq-ssc.txt b/Documentation/devicetree/bindings/spi/spi-lantiq-ssc.txt
index ce3230c8e28d..76a3dd35f796 100644
--- a/Documentation/devicetree/bindings/spi/spi-lantiq-ssc.txt
+++ b/Documentation/devicetree/bindings/spi/spi-lantiq-ssc.txt
@@ -1,11 +1,17 @@
Lantiq Synchronous Serial Controller (SSC) SPI master driver

Required properties:
-- compatible: "lantiq,ase-spi", "lantiq,falcon-spi", "lantiq,xrx100-spi"
+- compatible: "lantiq,ase-spi", "lantiq,falcon-spi", "lantiq,xrx100-spi",
+ "intel,lgm-spi"
- #address-cells: see spi-bus.txt
- #size-cells: see spi-bus.txt
- reg: address and length of the spi master registers
-- interrupts: should contain the "spi_rx", "spi_tx" and "spi_err" interrupt.
+- interrupts:
+ For compatible "intel,lgm-ssc" - the common interrupt number for
+ all of tx rx & err interrupts.
+ or
+ For rest of the compatibles, should contain the "spi_rx", "spi_tx" and
+ "spi_err" interrupt.


Optional properties:
@@ -27,3 +33,14 @@ spi: spi@e100800 {
num-cs = <6>;
base-cs = <1>;
};
+
+ssc0: spi@e0800000 {
+ compatible = "intel,lgm-spi";
+ reg = <0xe0800000 0x400>;
+ interrupt-parent = <&ioapic1>;
+ interrupts = <35 1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&cgu0 LGM_CLK_NGI>, <&cgu0 LGM_GCLK_SSC0>;
+ clock-names = "freq", "gate";
+};
--
2.11.0

2020-05-11 21:27:10

by Rob Herring (Arm)

Subject: Re: [PATCH 3/4] dt-bindings: spi: Add support to Lightning Mountain SoC

On Fri, 24 Apr 2020 18:42:32 +0800, Dilip Kota wrote:
> Add support to SPI controller on Intel Atom based Lightning Mountain
> SoC which reuses the Lantiq SPI controller IP.
>
> Signed-off-by: Dilip Kota <[email protected]>
> ---
> .../devicetree/bindings/spi/spi-lantiq-ssc.txt | 21 +++++++++++++++++++--
> 1 file changed, 19 insertions(+), 2 deletions(-)
>

Reviewed-by: Rob Herring <[email protected]>