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Date: Fri, 11 Sep 2015 19:02:21 +0100
From: Lee Jones <lee.jones@...aro.org>
To: Peter Griffin <peter.griffin@...aro.org>
Cc: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
srinivas.kandagatla@...il.com, maxime.coquelin@...com,
patrice.chotard@...com, devicetree@...r.kernel.org,
Christophe Kerello <christophe.kerello@...com>
Subject: Re: [PATCH 03/11] ARM: DT: STiH407: Add SPI 3 wire and 4 wire
pinctrl configs
On Fri, 11 Sep 2015, Peter Griffin wrote:
> This patch adds the spi pinctrl configurations for all SPI
> controllers, and also the alternate muxings which
> can be used depending on board design.
>
> Signed-off-by: Christophe Kerello <christophe.kerello@...com>
> Signed-off-by: Peter Griffin <peter.griffin@...aro.org>
> ---
> arch/arm/boot/dts/stih407-pinctrl.dtsi | 239 ++++++++++++++++++++++++++++++++-
> 1 file changed, 235 insertions(+), 4 deletions(-)
Acked-by: Lee Jones <lee.jones@...aro.org>
> diff --git a/arch/arm/boot/dts/stih407-pinctrl.dtsi b/arch/arm/boot/dts/stih407-pinctrl.dtsi
> index ce219a1..bb3b0c7 100644
> --- a/arch/arm/boot/dts/stih407-pinctrl.dtsi
> +++ b/arch/arm/boot/dts/stih407-pinctrl.dtsi
> @@ -262,6 +262,57 @@
> };
> };
> };
> +
> + spi10 {
> + pinctrl_spi10_default: spi10-4w-alt1-0 {
> + st,pins {
> + mtsr = <&pio4 6 ALT1 OUT>;
> + mrst = <&pio4 7 ALT1 IN>;
> + scl = <&pio4 5 ALT1 OUT>;
> + };
> + };
> +
> + pinctrl_spi10_3w_alt1_0: spi10-3w-alt1-0 {
> + st,pins {
> + mtsr = <&pio4 6 ALT1 BIDIR_PU>;
> + scl = <&pio4 5 ALT1 OUT>;
> + };
> + };
> + };
> +
> + spi11 {
> + pinctrl_spi11_default: spi11-4w-alt2-0 {
> + st,pins {
> + mtsr = <&pio3 1 ALT2 OUT>;
> + mrst = <&pio3 0 ALT2 IN>;
> + scl = <&pio3 2 ALT2 OUT>;
> + };
> + };
> +
> + pinctrl_spi11_3w_alt2_0: spi11-3w-alt2-0 {
> + st,pins {
> + mtsr = <&pio3 1 ALT2 BIDIR_PU>;
> + scl = <&pio3 2 ALT2 OUT>;
> + };
> + };
> + };
> +
> + spi12 {
> + pinctrl_spi12_default: spi12-4w-alt2-0 {
> + st,pins {
> + mtsr = <&pio3 6 ALT2 OUT>;
> + mrst = <&pio3 4 ALT2 IN>;
> + scl = <&pio3 7 ALT2 OUT>;
> + };
> + };
> +
> + pinctrl_spi12_3w_alt2_0: spi12-3w-alt2-0 {
> + st,pins {
> + mtsr = <&pio3 6 ALT2 BIDIR_PU>;
> + scl = <&pio3 7 ALT2 OUT>;
> + };
> + };
> + };
> };
>
> pin-controller-front0 {
> @@ -451,11 +502,159 @@
> };
>
> spi0 {
> - pinctrl_spi0_default: spi0-default {
> + pinctrl_spi0_default: spi0-4w-alt2-0 {
> + st,pins {
> + mtsr = <&pio10 6 ALT2 OUT>;
> + mrst = <&pio10 7 ALT2 IN>;
> + scl = <&pio10 5 ALT2 OUT>;
> + };
> + };
> +
> + pinctrl_spi0_3w_alt2_0: spi0-3w-alt2-0 {
> st,pins {
> - mtsr = <&pio12 6 ALT2 BIDIR>;
> - mrst = <&pio12 7 ALT2 BIDIR>;
> - scl = <&pio12 5 ALT2 BIDIR>;
> + mtsr = <&pio10 6 ALT2 BIDIR_PU>;
> + scl = <&pio10 5 ALT2 OUT>;
> + };
> + };
> +
> + pinctrl_spi0_4w_alt1_0: spi0-4w-alt1-0 {
> + st,pins {
> + mtsr = <&pio19 7 ALT1 OUT>;
> + mrst = <&pio19 5 ALT1 IN>;
> + scl = <&pio19 6 ALT1 OUT>;
> + };
> + };
> +
> + pinctrl_spi0_3w_alt1_0: spi0-3w-alt1-0 {
> + st,pins {
> + mtsr = <&pio19 7 ALT1 BIDIR_PU>;
> + scl = <&pio19 6 ALT1 OUT>;
> + };
> + };
> + };
> +
> + spi1 {
> + pinctrl_spi1_default: spi1-4w-alt2-0 {
> + st,pins {
> + mtsr = <&pio11 1 ALT2 OUT>;
> + mrst = <&pio11 2 ALT2 IN>;
> + scl = <&pio11 0 ALT2 OUT>;
> + };
> + };
> +
> + pinctrl_spi1_3w_alt2_0: spi1-3w-alt2-0 {
> + st,pins {
> + mtsr = <&pio11 1 ALT2 BIDIR_PU>;
> + scl = <&pio11 0 ALT2 OUT>;
> + };
> + };
> +
> + pinctrl_spi1_4w_alt1_0: spi1-4w-alt1-0 {
> + st,pins {
> + mtsr = <&pio14 3 ALT1 OUT>;
> + mrst = <&pio14 4 ALT1 IN>;
> + scl = <&pio14 2 ALT1 OUT>;
> + };
> + };
> +
> + pinctrl_spi1_3w_alt1_0: spi1-3w-alt1-0 {
> + st,pins {
> + mtsr = <&pio14 3 ALT1 BIDIR_PU>;
> + scl = <&pio14 2 ALT1 OUT>;
> + };
> + };
> + };
> +
> + spi2 {
> + pinctrl_spi2_default: spi2-4w-alt2-0 {
> + st,pins {
> + mtsr = <&pio12 6 ALT2 OUT>;
> + mrst = <&pio12 7 ALT2 IN>;
> + scl = <&pio12 5 ALT2 OUT>;
> + };
> + };
> +
> + pinctrl_spi2_3w_alt2_0: spi2-3w-alt2-0 {
> + st,pins {
> + mtsr = <&pio12 6 ALT2 BIDIR_PU>;
> + scl = <&pio12 5 ALT2 OUT>;
> + };
> + };
> +
> + pinctrl_spi2_4w_alt1_0: spi2-4w-alt1-0 {
> + st,pins {
> + mtsr = <&pio14 6 ALT1 OUT>;
> + mrst = <&pio14 7 ALT1 IN>;
> + scl = <&pio14 5 ALT1 OUT>;
> + };
> + };
> +
> + pinctrl_spi2_3w_alt1_0: spi2-3w-alt1-0 {
> + st,pins {
> + mtsr = <&pio14 6 ALT1 BIDIR_PU>;
> + scl = <&pio14 5 ALT1 OUT>;
> + };
> + };
> +
> + pinctrl_spi2_4w_alt2_1: spi2-4w-alt2-1 {
> + st,pins {
> + mtsr = <&pio15 6 ALT2 OUT>;
> + mrst = <&pio15 7 ALT2 IN>;
> + scl = <&pio15 5 ALT2 OUT>;
> + };
> + };
> +
> + pinctrl_spi2_3w_alt2_1: spi2-3w-alt2-1 {
> + st,pins {
> + mtsr = <&pio15 6 ALT2 BIDIR_PU>;
> + scl = <&pio15 5 ALT2 OUT>;
> + };
> + };
> + };
> +
> + spi3 {
> + pinctrl_spi3_default: spi3-4w-alt3-0 {
> + st,pins {
> + mtsr = <&pio13 6 ALT3 OUT>;
> + mrst = <&pio13 7 ALT3 IN>;
> + scl = <&pio13 5 ALT3 OUT>;
> + };
> + };
> +
> + pinctrl_spi3_3w_alt3_0: spi3-3w-alt3-0 {
> + st,pins {
> + mtsr = <&pio13 6 ALT3 BIDIR_PU>;
> + scl = <&pio13 5 ALT3 OUT>;
> + };
> + };
> +
> + pinctrl_spi3_4w_alt1_0: spi3-4w-alt1-0 {
> + st,pins {
> + mtsr = <&pio17 7 ALT1 OUT>;
> + mrst = <&pio17 5 ALT1 IN>;
> + scl = <&pio17 6 ALT1 OUT>;
> + };
> + };
> +
> + pinctrl_spi3_3w_alt1_0: spi3-3w-alt1-0 {
> + st,pins {
> + mtsr = <&pio17 7 ALT1 BIDIR_PU>;
> + scl = <&pio17 6 ALT1 OUT>;
> + };
> + };
> +
> + pinctrl_spi3_4w_alt1_1: spi3-4w-alt1-1 {
> + st,pins {
> + mtsr = <&pio18 6 ALT1 OUT>;
> + mrst = <&pio18 7 ALT1 IN>;
> + scl = <&pio18 5 ALT1 OUT>;
> + };
> + };
> +
> + pinctrl_spi3_3w_alt1_1: spi3-3w-alt1-1 {
> + st,pins {
> + mtsr = <&pio18 6 ALT1 BIDIR_PU>;
> + scl = <&pio18 5 ALT1 OUT>;
> };
> };
> };
> @@ -578,6 +777,38 @@
> };
> };
> };
> +
> + spi4 {
> + pinctrl_spi4_default: spi4-4w-alt1-0 {
> + st,pins {
> + mtsr = <&pio30 1 ALT1 OUT>;
> + mrst = <&pio30 2 ALT1 IN>;
> + scl = <&pio30 0 ALT1 OUT>;
> + };
> + };
> +
> + pinctrl_spi4_3w_alt1_0: spi4-3w-alt1-0 {
> + st,pins {
> + mtsr = <&pio30 1 ALT1 BIDIR_PU>;
> + scl = <&pio30 0 ALT1 OUT>;
> + };
> + };
> +
> + pinctrl_spi4_4w_alt3_0: spi4-4w-alt3-0 {
> + st,pins {
> + mtsr = <&pio34 1 ALT3 OUT>;
> + mrst = <&pio34 2 ALT3 IN>;
> + scl = <&pio34 0 ALT3 OUT>;
> + };
> + };
> +
> + pinctrl_spi4_3w_alt3_0: spi4-3w-alt3-0 {
> + st,pins {
> + mtsr = <&pio34 1 ALT3 BIDIR_PU>;
> + scl = <&pio34 0 ALT3 OUT>;
> + };
> + };
> + };
> };
>
> pin-controller-flash {
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
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