diff mbox

[V2] ARM: tegra: enable gpio-keys on dalmore

Message ID 1373102069-5641-1-git-send-email-ldewangan@nvidia.com (mailing list archive)
State New, archived
Headers show

Commit Message

Laxman Dewangan July 6, 2013, 9:14 a.m. UTC
Dalmore have the keys mounted on board which are connected
to different pins of Tegra.

Add the keys entry in DTS file to enable key functionality.
This will enable KEY_POWER, KEY_HOME, KEY_VOLUMEUP and
KEY_VOLUMEDOWN.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
---
Changes from V1:
- Reorder the nodes.

 arch/arm/boot/dts/tegra114-dalmore.dts |   30 ++++++++++++++++++++++++++++++
 1 files changed, 30 insertions(+), 0 deletions(-)

Comments

Stephen Warren July 8, 2013, 3:51 p.m. UTC | #1
On 07/06/2013 03:14 AM, Laxman Dewangan wrote:
> Dalmore have the keys mounted on board which are connected
> to different pins of Tegra.
> 
> Add the keys entry in DTS file to enable key functionality.
> This will enable KEY_POWER, KEY_HOME, KEY_VOLUMEUP and
> KEY_VOLUMEDOWN.

> diff --git a/arch/arm/boot/dts/tegra114-dalmore.dts b/arch/arm/boot/dts/tegra114-dalmore.dts

> @@ -976,4 +1005,5 @@
>  			 <&tegra_car TEGRA114_CLK_EXTERN1>;
>  		clock-names = "pll_a", "pll_a_out0", "mclk";
>  	};
> +
>  };

What's that? I'll try to remember to fix this up when applying, but
proof-reading would help.
Laxman Dewangan July 8, 2013, 5:12 p.m. UTC | #2
On Monday 08 July 2013 09:21 PM, Stephen Warren wrote:
> On 07/06/2013 03:14 AM, Laxman Dewangan wrote:
>
>> diff --git a/arch/arm/boot/dts/tegra114-dalmore.dts b/arch/arm/boot/dts/tegra114-dalmore.dts
>> @@ -976,4 +1005,5 @@
>>   			 <&tegra_car TEGRA114_CLK_EXTERN1>;
>>   		clock-names = "pll_a", "pll_a_out0", "mclk";
>>   	};
>> +
>>   };
> What's that? I'll try to remember to fix this up when applying, but
> proof-reading would help.

Oops.. My bad.. Did not see the bottom when doing patch review.

Let me know if I need to send V4 if it is easy for you to handle?
Thierry Reding July 9, 2013, 6:04 a.m. UTC | #3
On Sat, Jul 06, 2013 at 02:44:29PM +0530, Laxman Dewangan wrote:
> Dalmore have the keys mounted on board which are connected
> to different pins of Tegra.
> 
> Add the keys entry in DTS file to enable key functionality.
> This will enable KEY_POWER, KEY_HOME, KEY_VOLUMEUP and
> KEY_VOLUMEDOWN.
> 
> Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
> ---
> Changes from V1:
> - Reorder the nodes.
> 
>  arch/arm/boot/dts/tegra114-dalmore.dts |   30 ++++++++++++++++++++++++++++++
>  1 files changed, 30 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/arm/boot/dts/tegra114-dalmore.dts b/arch/arm/boot/dts/tegra114-dalmore.dts
> index cb640eb..259b517 100644
> --- a/arch/arm/boot/dts/tegra114-dalmore.dts
> +++ b/arch/arm/boot/dts/tegra114-dalmore.dts
> @@ -883,6 +883,35 @@
>  		};
>  	};
>  
> +	gpio-keys {
> +		compatible = "gpio-keys";
> +
> +		home {
> +			label = "Home";
> +			gpios = <&gpio TEGRA_GPIO(I, 5) GPIO_ACTIVE_LOW>;
> +			linux,code = <102>; /* KEY_HOME */

I wonder if these should maybe go into a header file as well so that
symbolic names can be used. That'll make the value self-descriptive and
allow the comment to be dropped.

> +		volume_down {
> +			label = "VolumeDown";
> +			gpios = <&gpio TEGRA_GPIO(R, 1) GPIO_ACTIVE_LOW>;
> +			linux,code = <114>; /* KEY_VOLUMEDOWN */
> +		};
> +
> +		volume_up {
> +			label = "VolumeUp";
> +			gpios = <&gpio TEGRA_GPIO(R, 2) GPIO_ACTIVE_LOW>;
> +			linux,code = <115>; /* KEY_VOLUMEUP */
> +		};
> +	};

Nit: Perhaps the labels should be "Volume Down" and "Volume Up" here?

Thierry
Laxman Dewangan July 10, 2013, 7:03 a.m. UTC | #4
On Tuesday 09 July 2013 11:34 AM, Thierry Reding wrote:
> * PGP Signed by an unknown key
>
> On Sat, Jul 06, 2013 at 02:44:29PM +0530, Laxman Dewangan wrote:
>> D
>> +
>> +		home {
>> +			label = "Home";
>> +			gpios = <&gpio TEGRA_GPIO(I, 5) GPIO_ACTIVE_LOW>;
>> +			linux,code = <102>; /* KEY_HOME */
> I wonder if these should maybe go into a header file as well so that
> symbolic names can be used. That'll make the value self-descriptive and
> allow the comment to be dropped.
>
Currently there is no header for input.h in dt-binding include. We need 
to add them first and then use it.
Probably it can be done along with all cleanups on dts file atleast for 
Tegra.
I can start this if no one faster than me for this activity but for this 
patch, I like to go on legacy way.
diff mbox

Patch

diff --git a/arch/arm/boot/dts/tegra114-dalmore.dts b/arch/arm/boot/dts/tegra114-dalmore.dts
index cb640eb..259b517 100644
--- a/arch/arm/boot/dts/tegra114-dalmore.dts
+++ b/arch/arm/boot/dts/tegra114-dalmore.dts
@@ -883,6 +883,35 @@ 
 		};
 	};
 
+	gpio-keys {
+		compatible = "gpio-keys";
+
+		home {
+			label = "Home";
+			gpios = <&gpio TEGRA_GPIO(I, 5) GPIO_ACTIVE_LOW>;
+			linux,code = <102>; /* KEY_HOME */
+		};
+
+		power {
+			label = "Power";
+			gpios = <&gpio TEGRA_GPIO(Q, 0) GPIO_ACTIVE_LOW>;
+			linux,code = <116>; /* KEY_POWER */
+			gpio-key,wakeup;
+		};
+
+		volume_down {
+			label = "VolumeDown";
+			gpios = <&gpio TEGRA_GPIO(R, 1) GPIO_ACTIVE_LOW>;
+			linux,code = <114>; /* KEY_VOLUMEDOWN */
+		};
+
+		volume_up {
+			label = "VolumeUp";
+			gpios = <&gpio TEGRA_GPIO(R, 2) GPIO_ACTIVE_LOW>;
+			linux,code = <115>; /* KEY_VOLUMEUP */
+		};
+	};
+
 	regulators {
 		compatible = "simple-bus";
 		#address-cells = <1>;
@@ -976,4 +1005,5 @@ 
 			 <&tegra_car TEGRA114_CLK_EXTERN1>;
 		clock-names = "pll_a", "pll_a_out0", "mclk";
 	};
+
 };