* [PATCH] arm64: dts: Enable ir-spi in the tm2 and tm2e boards
[not found] <CGME20170207081338epcas5p23530ff8663c58f8868a0f9dfa2e19f7a@epcas5p2.samsung.com>
@ 2017-02-07 8:13 ` Andi Shyti
2017-02-07 21:12 ` Krzysztof Kozlowski
0 siblings, 1 reply; 2+ messages in thread
From: Andi Shyti @ 2017-02-07 8:13 UTC (permalink / raw)
To: linux-arm-kernel
Add the device tree node for the ir-spi driver which enable the
ir led for remote controlling.
This patch sets first the GPR3[3] gpio line as a regulator-fixed
for enabling an external regulator which powers the IR LED.
Removes also the default assignment of the GPG3[5] and GPG3[7]
related to the SPI3 line.
Signed-off-by: Andi Shyti <andi.shyti@samsung.com>
---
.../boot/dts/exynos/exynos5433-tm2-common.dtsi | 27 ++++++++++++++++++++--
1 file changed, 25 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/boot/dts/exynos/exynos5433-tm2-common.dtsi b/arch/arm64/boot/dts/exynos/exynos5433-tm2-common.dtsi
index 098ad557fee3..c61df2318d8b 100644
--- a/arch/arm64/boot/dts/exynos/exynos5433-tm2-common.dtsi
+++ b/arch/arm64/boot/dts/exynos/exynos5433-tm2-common.dtsi
@@ -106,6 +106,13 @@
};
};
+ irda_regulator: irda-regulator {
+ compatible = "regulator-fixed";
+ enable-active-high;
+ gpio = <&gpr3 3 0>;
+ regulator-name = "irda_regulator";
+ };
+
sound {
compatible = "samsung,tm2-audio";
audio-codec = <&wm5110>;
@@ -1073,8 +1080,6 @@
PIN(INPUT, gpg3-0, DOWN, FAST_SR1);
PIN(INPUT, gpg3-1, DOWN, FAST_SR1);
- PIN(INPUT, gpg3-5, DOWN, FAST_SR1);
- PIN(INPUT, gpg3-7, DOWN, FAST_SR1);
};
};
@@ -1152,6 +1157,24 @@
};
};
+&spi_3 {
+ status = "okay";
+ no-cs-readback;
+
+ irled at 0 {
+ compatible = "ir-spi-led";
+ reg = <0x0>;
+ spi-max-frequency = <5000000>;
+ power-supply = <&irda_regulator>;
+ duty-cycle = <60>;
+ led-active-low;
+
+ controller-data {
+ samsung,spi-feedback-delay = <0>;
+ };
+ };
+};
+
&timer {
clock-frequency = <24000000>;
};
--
2.11.0
^ permalink raw reply related [flat|nested] 2+ messages in thread
* [PATCH] arm64: dts: Enable ir-spi in the tm2 and tm2e boards
2017-02-07 8:13 ` [PATCH] arm64: dts: Enable ir-spi in the tm2 and tm2e boards Andi Shyti
@ 2017-02-07 21:12 ` Krzysztof Kozlowski
0 siblings, 0 replies; 2+ messages in thread
From: Krzysztof Kozlowski @ 2017-02-07 21:12 UTC (permalink / raw)
To: linux-arm-kernel
On Tue, Feb 07, 2017 at 05:13:25PM +0900, Andi Shyti wrote:
> Add the device tree node for the ir-spi driver which enable the
> ir led for remote controlling.
>
> This patch sets first the GPR3[3] gpio line as a regulator-fixed
> for enabling an external regulator which powers the IR LED.
>
> Removes also the default assignment of the GPG3[5] and GPG3[7]
> related to the SPI3 line.
>
> Signed-off-by: Andi Shyti <andi.shyti@samsung.com>
> ---
> .../boot/dts/exynos/exynos5433-tm2-common.dtsi | 27 ++++++++++++++++++++--
> 1 file changed, 25 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/exynos/exynos5433-tm2-common.dtsi b/arch/arm64/boot/dts/exynos/exynos5433-tm2-common.dtsi
> index 098ad557fee3..c61df2318d8b 100644
> --- a/arch/arm64/boot/dts/exynos/exynos5433-tm2-common.dtsi
> +++ b/arch/arm64/boot/dts/exynos/exynos5433-tm2-common.dtsi
> @@ -106,6 +106,13 @@
> };
> };
>
> + irda_regulator: irda-regulator {
> + compatible = "regulator-fixed";
> + enable-active-high;
> + gpio = <&gpr3 3 0>;
GPIO_ACTIVE_HIGH
> + regulator-name = "irda_regulator";
> + };
> +
> sound {
> compatible = "samsung,tm2-audio";
> audio-codec = <&wm5110>;
> @@ -1073,8 +1080,6 @@
>
> PIN(INPUT, gpg3-0, DOWN, FAST_SR1);
> PIN(INPUT, gpg3-1, DOWN, FAST_SR1);
> - PIN(INPUT, gpg3-5, DOWN, FAST_SR1);
> - PIN(INPUT, gpg3-7, DOWN, FAST_SR1);
I think gpg3-5 would be missing its configuration. It is not present in
spi3 bus pins. Is it a chip select pin? If you remove the default
configuration, it will still work as input-pull down because no one is
setting different config. Why you need to touch gpg3-5?
Best regards,
Krzysztof
^ permalink raw reply [flat|nested] 2+ messages in thread
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2017-02-07 8:13 ` [PATCH] arm64: dts: Enable ir-spi in the tm2 and tm2e boards Andi Shyti
2017-02-07 21:12 ` Krzysztof Kozlowski
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