diff mbox

[v2,3/4] spi: sun6i: Add binding for Allwinner H3 SPI controller

Message ID 20161028065412.23008-4-woogyom.kim@gmail.com (mailing list archive)
State New, archived
Headers show

Commit Message

Milo Kim Oct. 28, 2016, 6:54 a.m. UTC 
H3 SPI has same architecture as A31 except FIFO capacity.
To configure the buffer size separately, compatible property should be
different. Optional DMA specifiers and example are added.

Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Milo Kim <woogyom.kim@gmail.com>
---
 .../devicetree/bindings/spi/spi-sun6i.txt          | 25 ++++++++++++++++++++--
 1 file changed, 23 insertions(+), 2 deletions(-)

Comments

Rob Herring (Arm) Oct. 31, 2016, 6:06 a.m. UTC | #1 
On Fri, Oct 28, 2016 at 03:54:11PM +0900, Milo Kim wrote:
> H3 SPI has same architecture as A31 except FIFO capacity.
> To configure the buffer size separately, compatible property should be
> different. Optional DMA specifiers and example are added.
> 
> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
> Cc: Mark Brown <broonie@kernel.org>
> Cc: Rob Herring <robh+dt@kernel.org>
> Cc: Chen-Yu Tsai <wens@csie.org>
> Signed-off-by: Milo Kim <woogyom.kim@gmail.com>
> ---
>  .../devicetree/bindings/spi/spi-sun6i.txt          | 25 ++++++++++++++++++++--
>  1 file changed, 23 insertions(+), 2 deletions(-)

Acked-by: Rob Herring <robh@kernel.org>
--
To unsubscribe from this list: send the line "unsubscribe linux-spi" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
diff mbox

Patch

diff --git a/Documentation/devicetree/bindings/spi/spi-sun6i.txt b/Documentation/devicetree/bindings/spi/spi-sun6i.txt
index 21de73d..2ec99b8 100644
--- a/Documentation/devicetree/bindings/spi/spi-sun6i.txt
+++ b/Documentation/devicetree/bindings/spi/spi-sun6i.txt
@@ -1,7 +1,7 @@ 
-Allwinner A31 SPI controller
+Allwinner A31/H3 SPI controller
 
 Required properties:
-- compatible: Should be "allwinner,sun6i-a31-spi".
+- compatible: Should be "allwinner,sun6i-a31-spi" or "allwinner,sun8i-h3-spi".
 - reg: Should contain register location and length.
 - interrupts: Should contain interrupt.
 - clocks: phandle to the clocks feeding the SPI controller. Two are
@@ -12,6 +12,11 @@  Required properties:
 - resets: phandle to the reset controller asserting this device in
           reset
 
+Optional properties:
+- dmas: DMA specifiers for rx and tx dma. See the DMA client binding,
+	Documentation/devicetree/bindings/dma/dma.txt
+- dma-names: DMA request names should include "rx" and "tx" if present.
+
 Example:
 
 spi1: spi@01c69000 {
@@ -22,3 +27,19 @@  spi1: spi@01c69000 {
 	clock-names = "ahb", "mod";
 	resets = <&ahb1_rst 21>;
 };
+
+spi0: spi@01c68000 {
+	compatible = "allwinner,sun8i-h3-spi";
+	reg = <0x01c68000 0x1000>;
+	interrupts = <GIC_SPI 65 IRQ_TYPE_LEVEL_HIGH>;
+	clocks = <&ccu CLK_BUS_SPI0>, <&ccu CLK_SPI0>;
+	clock-names = "ahb", "mod";
+	dmas = <&dma 23>, <&dma 23>;
+	dma-names = "rx", "tx";
+	pinctrl-names = "default";
+	pinctrl-0 = <&spi0_pins>;
+	resets = <&ccu RST_BUS_SPI0>;
+	status = "disabled";
+	#address-cells = <1>;
+	#size-cells = <0>;
+};