[6/7] ARM: dts: suniv: Add pinmux for SPI0 and SPI1 of F1C100s
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Message ID 37f573797e18fc22f8f78d0a62550b6d5e460a8d.1549875778.git.mesihkilinc@gmail.com
State New
Headers show
Series
  • Timer & SPI support for Allwinner suniv F1C100s
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Commit Message

Mesih Kilinc Feb. 11, 2019, 9:21 a.m. UTC
PC0~PC4 is pin group for SPI0. PA0~PA4 is pin group for SPI1.
Add device tree nodes for this groups.

Signed-off-by: Mesih Kilinc <mesihkilinc@gmail.com>
---
 arch/arm/boot/dts/suniv-f1c100s.dtsi | 10 ++++++++++
 1 file changed, 10 insertions(+)

Comments

Maxime Ripard Feb. 11, 2019, 3:51 p.m. UTC | #1
On Mon, Feb 11, 2019 at 12:21:12PM +0300, Mesih Kilinc wrote:
> PC0~PC4 is pin group for SPI0. PA0~PA4 is pin group for SPI1.
> Add device tree nodes for this groups.
> 
> Signed-off-by: Mesih Kilinc <mesihkilinc@gmail.com>
> ---
>  arch/arm/boot/dts/suniv-f1c100s.dtsi | 10 ++++++++++
>  1 file changed, 10 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/suniv-f1c100s.dtsi b/arch/arm/boot/dts/suniv-f1c100s.dtsi
> index 1b332d9..a92a411 100644
> --- a/arch/arm/boot/dts/suniv-f1c100s.dtsi
> +++ b/arch/arm/boot/dts/suniv-f1c100s.dtsi
> @@ -96,6 +96,16 @@
>  				pins = "PE0", "PE1";
>  				function = "uart0";
>  			};
> +
> +			spi0_pc_pins: spi0-pc-pins {
> +				pins = "PC0", "PC1", "PC2", "PC3";
> +				function = "spi0";
> +			};
> +
> +			spi1_pa_pins: spi1-pa-pins {
> +				pins = "PA0", "PA1", "PA2", "PA3";
> +				function = "spi1";
> +			};

Are they the only options for the muxing of the SPI pins? if so, you'd
need to remove the pin bank, and to set the pinctrl-0 and
pinctrl-names in the DTSI.

We also move the CS pin out in a separate group to accomodate devices
that use a GPIO instead.

Maxime

Patch
diff mbox series

diff --git a/arch/arm/boot/dts/suniv-f1c100s.dtsi b/arch/arm/boot/dts/suniv-f1c100s.dtsi
index 1b332d9..a92a411 100644
--- a/arch/arm/boot/dts/suniv-f1c100s.dtsi
+++ b/arch/arm/boot/dts/suniv-f1c100s.dtsi
@@ -96,6 +96,16 @@ 
 				pins = "PE0", "PE1";
 				function = "uart0";
 			};
+
+			spi0_pc_pins: spi0-pc-pins {
+				pins = "PC0", "PC1", "PC2", "PC3";
+				function = "spi0";
+			};
+
+			spi1_pa_pins: spi1-pa-pins {
+				pins = "PA0", "PA1", "PA2", "PA3";
+				function = "spi1";
+			};
 		};
 
 		timer@1c20c00 {