[PATCH 0/4] Add device tree data for omap5

[PATCH 0/4] Add device tree data for omap5

[Sourav Poddar]

The following patch series add i2c support for omap5.
As well as enable I2C based devices like pressure and temperature
through device tree. Also add onchip keypad dts data.

Cc: Benoit Cousson <b-cousson@ti.com>
Cc: Felipe Balbi <balbi@ti.com>
Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>

Sourav Poddar (4):
  arm/dts: omap5-evm: Add I2C support
  arm/dts: omap5-evm: Add tmp102 sensor support
  arm/dts: omap5-evm: Add keypad data
  arm/dts: omap5-evm: Add bmp085 sensor support

 arch/arm/boot/dts/omap5-evm.dts |   30 +++++++++++++++++++++++++++++
 arch/arm/boot/dts/omap5.dtsi    |   40 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 70 insertions(+), 0 deletions(-)

[PATCH 1/4] arm/dts: omap5-evm: Add I2C support

[Sourav Poddar]

Add I2C data node in omap5 device tree file.

Tested on omap5430 sdp.

Cc: Benoit Cousson <b-cousson@ti.com>
Cc: Felipe Balbi <balbi@ti.com>
Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Sourav Poddar <sourav.poddar@ti.com>
---
 arch/arm/boot/dts/omap5.dtsi |   35 +++++++++++++++++++++++++++++++++++
 1 files changed, 35 insertions(+), 0 deletions(-)

diff --git a/arch/arm/boot/dts/omap5.dtsi b/arch/arm/boot/dts/omap5.dtsi
index 57e5270..6b68dfe 100644
--- a/arch/arm/boot/dts/omap5.dtsi
+++ b/arch/arm/boot/dts/omap5.dtsi
@@ -145,6 +145,41 @@
 			#interrupt-cells = <1>;
 		};
 
+		i2c1: i2c@48070000 {
+			compatible = "ti,omap4-i2c";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			ti,hwmods = "i2c1";
+		};
+
+		i2c2: i2c@48072000 {
+			compatible = "ti,omap4-i2c";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			ti,hwmods = "i2c2";
+		};
+
+		i2c3: i2c@48060000 {
+			compatible = "ti,omap4-i2c";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			ti,hwmods = "i2c3";
+		};
+
+		i2c4: i2c@4807A000 {
+			compatible = "ti,omap4-i2c";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			ti,hwmods = "i2c4";
+		};
+
+		i2c5: i2c@4807C000 {
+			compatible = "ti,omap4-i2c";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			ti,hwmods = "i2c5";
+		};
+
 		uart1: serial@4806a000 {
 			compatible = "ti,omap4-uart";
 			ti,hwmods = "uart1";
-- 
1.7.1

Re: [PATCH 1/4] arm/dts: omap5-evm: Add I2C support

[Sergei Shtylyov]

Hello.

On 08/03/2012 04:38 PM, Sourav Poddar wrote:

> Add I2C data node in omap5 device tree file.

> Tested on omap5430 sdp.

> Cc: Benoit Cousson <b-cousson@ti.com>
> Cc: Felipe Balbi <balbi@ti.com>
> Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
> Acked-by: Felipe Balbi <balbi@ti.com>
> Signed-off-by: Sourav Poddar <sourav.poddar@ti.com>
> ---
>  arch/arm/boot/dts/omap5.dtsi |   35 +++++++++++++++++++++++++++++++++++
>  1 files changed, 35 insertions(+), 0 deletions(-)

> diff --git a/arch/arm/boot/dts/omap5.dtsi b/arch/arm/boot/dts/omap5.dtsi
> index 57e5270..6b68dfe 100644
> --- a/arch/arm/boot/dts/omap5.dtsi
> +++ b/arch/arm/boot/dts/omap5.dtsi
> @@ -145,6 +145,41 @@
>  			#interrupt-cells = <1>;
>  		};
>  
> +		i2c1: i2c@48070000 {
> +			compatible = "ti,omap4-i2c";
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +			ti,hwmods = "i2c1";

   Address postfix in the node name and no "reg" property?

WBR, Sergei

Re: [PATCH 1/4] arm/dts: omap5-evm: Add I2C support

[Felipe Balbi]

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Hi,

On Fri, Aug 03, 2012 at 09:22:19PM +0400, Sergei Shtylyov wrote:
> Hello.
> 
> On 08/03/2012 04:38 PM, Sourav Poddar wrote:
> 
> > Add I2C data node in omap5 device tree file.
> 
> > Tested on omap5430 sdp.
> 
> > Cc: Benoit Cousson <b-cousson-l0cyMroinI0@public.gmane.org>
> > Cc: Felipe Balbi <balbi-l0cyMroinI0@public.gmane.org>
> > Cc: Santosh Shilimkar <santosh.shilimkar-l0cyMroinI0@public.gmane.org>
> > Acked-by: Felipe Balbi <balbi-l0cyMroinI0@public.gmane.org>
> > Signed-off-by: Sourav Poddar <sourav.poddar-l0cyMroinI0@public.gmane.org>
> > ---
> >  arch/arm/boot/dts/omap5.dtsi |   35 +++++++++++++++++++++++++++++++++++
> >  1 files changed, 35 insertions(+), 0 deletions(-)
> 
> > diff --git a/arch/arm/boot/dts/omap5.dtsi b/arch/arm/boot/dts/omap5.dtsi
> > index 57e5270..6b68dfe 100644
> > --- a/arch/arm/boot/dts/omap5.dtsi
> > +++ b/arch/arm/boot/dts/omap5.dtsi
> > @@ -145,6 +145,41 @@
> >  			#interrupt-cells = <1>;
> >  		};
> >  
> > +		i2c1: i2c@48070000 {
> > +			compatible = "ti,omap4-i2c";
> > +			#address-cells = <1>;
> > +			#size-cells = <0>;
> > +			ti,hwmods = "i2c1";
> 
>    Address postfix in the node name and no "reg" property?

that's because of the ti,hwmods attribute. OMAP is still not entirely
converted to DT and there's this weird ti,hwmods attribute. OMAP's hwmod
framework will fill up register addresses, irqs, etc when the device is
created. Oh well...

-- 
balbi

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[PATCH 2/4] arm/dts: omap5-evm: Add tmp102 sensor support

[Sourav Poddar]

Add tmp102 temperature sensor data in omap5 evm dts file.

Tested on omap5430 sdp with 3.5 custom kernel.

Cc: Benoit Cousson <b-cousson@ti.com>
Cc: Felipe Balbi <balbi@ti.com>
Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Sourav Poddar <sourav.poddar@ti.com>
---
 arch/arm/boot/dts/omap5-evm.dts |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)

diff --git a/arch/arm/boot/dts/omap5-evm.dts b/arch/arm/boot/dts/omap5-evm.dts
index 200c39a..45a8aeb 100644
--- a/arch/arm/boot/dts/omap5-evm.dts
+++ b/arch/arm/boot/dts/omap5-evm.dts
@@ -18,3 +18,12 @@
 		reg = <0x80000000 0x40000000>; /* 1 GB */
 	};
 };
+
+&i2c4 {
+	clock-frequency = <400000>;
+
+	tmp102@48{
+		compatible = "ti,tmp102";
+		reg = <0x48>;
+	};
+};
-- 
1.7.1

[PATCH 3/4] arm/dts: omap5-evm: Add keypad data

[Sourav Poddar]

Add keypad data node in omap5 device tree file.
Also fill the device tree binding parameters
with the required value in "omap5-evm" dts file.

Tested on omap5430 evm with 3.5 custom kernel.

Cc: Benoit Cousson <b-cousson@ti.com>
Cc: Felipe Balbi <balbi@ti.com>
Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Sourav Poddar <sourav.poddar@ti.com>
---
 arch/arm/boot/dts/omap5-evm.dts |   12 ++++++++++++
 arch/arm/boot/dts/omap5.dtsi    |    5 +++++
 2 files changed, 17 insertions(+), 0 deletions(-)

diff --git a/arch/arm/boot/dts/omap5-evm.dts b/arch/arm/boot/dts/omap5-evm.dts
index 45a8aeb..09fe941 100644
--- a/arch/arm/boot/dts/omap5-evm.dts
+++ b/arch/arm/boot/dts/omap5-evm.dts
@@ -17,6 +17,18 @@
 		device_type = "memory";
 		reg = <0x80000000 0x40000000>; /* 1 GB */
 	};
+
+	keypad {
+		keypad,num-rows = <8>;
+		keypad,num-columns = <8>;
+		linux,keymap = < 0x02020073
+			0x02030072
+			0x020400e7
+			0x02050066
+			0x0206006b
+			0x020700d9 >;
+		linux,input-no-autorepeat;
+	};
 };
 
 &i2c4 {
diff --git a/arch/arm/boot/dts/omap5.dtsi b/arch/arm/boot/dts/omap5.dtsi
index 6b68dfe..c38b823 100644
--- a/arch/arm/boot/dts/omap5.dtsi
+++ b/arch/arm/boot/dts/omap5.dtsi
@@ -216,4 +216,9 @@
 			clock-frequency = <48000000>;
 		};
 	};
+
+	keypad {
+		compatible = "ti,omap4-keypad";
+		ti,hwmods = "kbd";
+	};
 };
-- 
1.7.1

Re: [PATCH 3/4] arm/dts: omap5-evm: Add keypad data

[Koen Kooi]

Op 3 aug. 2012, om 14:38 heeft Sourav Poddar <sourav.poddar@ti.com> het volgende geschreven:

> Add keypad data node in omap5 device tree file.
> Also fill the device tree binding parameters
> with the required value in "omap5-evm" dts file.
> 
> Tested on omap5430 evm with 3.5 custom kernel.
> 
> Cc: Benoit Cousson <b-cousson@ti.com>
> Cc: Felipe Balbi <balbi@ti.com>
> Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
> Acked-by: Felipe Balbi <balbi@ti.com>
> Signed-off-by: Sourav Poddar <sourav.poddar@ti.com>
> ---
> arch/arm/boot/dts/omap5-evm.dts |   12 ++++++++++++
> arch/arm/boot/dts/omap5.dtsi    |    5 +++++
> 2 files changed, 17 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/arm/boot/dts/omap5-evm.dts b/arch/arm/boot/dts/omap5-evm.dts
> index 45a8aeb..09fe941 100644
> --- a/arch/arm/boot/dts/omap5-evm.dts
> +++ b/arch/arm/boot/dts/omap5-evm.dts
> @@ -17,6 +17,18 @@
> 		device_type = "memory";
> 		reg = <0x80000000 0x40000000>; /* 1 GB */
> 	};
> +
> +	keypad {
> +		keypad,num-rows = <8>;
> +		keypad,num-columns = <8>;
> +		linux,keymap = < 0x02020073
> +			0x02030072
> +			0x020400e7
> +			0x02050066
> +			0x0206006b
> +			0x020700d9 >;
> +		linux,input-no-autorepeat;
> +	};

This not a criticism on your patch, but a generic question about DT: Is there no way to have nice constants for keys like we have in the kernel, like KEY_POWER, KEY_UP, etc? If no, does DT allow comments so I can look at a dts and see which keycodes are mapped instead of having to dig up the sources?

regards,

Koen

Re: [PATCH 3/4] arm/dts: omap5-evm: Add keypad data

[Poddar, Sourav]

Hi,

On Fri, Aug 3, 2012 at 6:20 PM, Koen Kooi <koen@dominion.thruhere.net> wrote:
>
> Op 3 aug. 2012, om 14:38 heeft Sourav Poddar <sourav.poddar@ti.com> het volgende geschreven:
>
>> Add keypad data node in omap5 device tree file.
>> Also fill the device tree binding parameters
>> with the required value in "omap5-evm" dts file.
>>
>> Tested on omap5430 evm with 3.5 custom kernel.
>>
>> Cc: Benoit Cousson <b-cousson@ti.com>
>> Cc: Felipe Balbi <balbi@ti.com>
>> Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
>> Acked-by: Felipe Balbi <balbi@ti.com>
>> Signed-off-by: Sourav Poddar <sourav.poddar@ti.com>
>> ---
>> arch/arm/boot/dts/omap5-evm.dts |   12 ++++++++++++
>> arch/arm/boot/dts/omap5.dtsi    |    5 +++++
>> 2 files changed, 17 insertions(+), 0 deletions(-)
>>
>> diff --git a/arch/arm/boot/dts/omap5-evm.dts b/arch/arm/boot/dts/omap5-evm.dts
>> index 45a8aeb..09fe941 100644
>> --- a/arch/arm/boot/dts/omap5-evm.dts
>> +++ b/arch/arm/boot/dts/omap5-evm.dts
>> @@ -17,6 +17,18 @@
>>               device_type = "memory";
>>               reg = <0x80000000 0x40000000>; /* 1 GB */
>>       };
>> +
>> +     keypad {
>> +             keypad,num-rows = <8>;
>> +             keypad,num-columns = <8>;
>> +             linux,keymap = < 0x02020073
>> +                     0x02030072
>> +                     0x020400e7
>> +                     0x02050066
>> +                     0x0206006b
>> +                     0x020700d9 >;
>> +             linux,input-no-autorepeat;
>> +     };
>
> This not a criticism on your patch, but a generic question about DT: Is there no way to have nice constants for keys like we have in the kernel, like KEY_POWER, KEY_UP, etc?
There is way, something like this ..
               key_C {
                       keypad,row = <2>;
                       keypad,column = <1>;
                       linux,code = <46>;
               };
But its not the preferred approach mainly because of the fact that
it is too big. So suppose, if we have 100 key codes, we will have
400 -500 lines of code in our dts file for the mapping only.
 If no, does DT allow comments so I can look at a dts and see which
keycodes are mapped instead of having to dig up the sources?
Yes, comments are allowed and seems to be better option to do.

~Sourav
>
> regards,
>
> Koen

Re: [PATCH 3/4] arm/dts: omap5-evm: Add keypad data

[Koen Kooi]

Op 3 aug. 2012, om 14:38 heeft Sourav Poddar <sourav.poddar@ti.com> het volgende geschreven:

> Add keypad data node in omap5 device tree file.
> Also fill the device tree binding parameters
> with the required value in "omap5-evm" dts file.
> 
> Tested on omap5430 evm with 3.5 custom kernel.
> 
> Cc: Benoit Cousson <b-cousson@ti.com>
> Cc: Felipe Balbi <balbi@ti.com>
> Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
> Acked-by: Felipe Balbi <balbi@ti.com>
> Signed-off-by: Sourav Poddar <sourav.poddar@ti.com>
> ---
> arch/arm/boot/dts/omap5-evm.dts |   12 ++++++++++++
> arch/arm/boot/dts/omap5.dtsi    |    5 +++++
> 2 files changed, 17 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/arm/boot/dts/omap5-evm.dts b/arch/arm/boot/dts/omap5-evm.dts
> index 45a8aeb..09fe941 100644
> --- a/arch/arm/boot/dts/omap5-evm.dts
> +++ b/arch/arm/boot/dts/omap5-evm.dts
> @@ -17,6 +17,18 @@
> 		device_type = "memory";
> 		reg = <0x80000000 0x40000000>; /* 1 GB */
> 	};
> +
> +	keypad {
> +		keypad,num-rows = <8>;
> +		keypad,num-columns = <8>;
> +		linux,keymap = < 0x02020073
> +			0x02030072
> +			0x020400e7
> +			0x02050066
> +			0x0206006b
> +			0x020700d9 >;
> +		linux,input-no-autorepeat;
> +	};

Again not a coment on your patch, but on DT:

If DT bindings must be OS independent, what then, is that linux keycode doing there?

regards,

Koen

Re: [PATCH 3/4] arm/dts: omap5-evm: Add keypad data

[Poddar, Sourav]

Hi Koen,

On Tue, Aug 7, 2012 at 6:24 PM, Koen Kooi <koen@dominion.thruhere.net> wrote:
>
> Op 3 aug. 2012, om 14:38 heeft Sourav Poddar <sourav.poddar@ti.com> het volgende geschreven:
>
>> Add keypad data node in omap5 device tree file.
>> Also fill the device tree binding parameters
>> with the required value in "omap5-evm" dts file.
>>
>> Tested on omap5430 evm with 3.5 custom kernel.
>>
>> Cc: Benoit Cousson <b-cousson@ti.com>
>> Cc: Felipe Balbi <balbi@ti.com>
>> Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
>> Acked-by: Felipe Balbi <balbi@ti.com>
>> Signed-off-by: Sourav Poddar <sourav.poddar@ti.com>
>> ---
>> arch/arm/boot/dts/omap5-evm.dts |   12 ++++++++++++
>> arch/arm/boot/dts/omap5.dtsi    |    5 +++++
>> 2 files changed, 17 insertions(+), 0 deletions(-)
>>
>> diff --git a/arch/arm/boot/dts/omap5-evm.dts b/arch/arm/boot/dts/omap5-evm.dts
>> index 45a8aeb..09fe941 100644
>> --- a/arch/arm/boot/dts/omap5-evm.dts
>> +++ b/arch/arm/boot/dts/omap5-evm.dts
>> @@ -17,6 +17,18 @@
>>               device_type = "memory";
>>               reg = <0x80000000 0x40000000>; /* 1 GB */
>>       };
>> +
>> +     keypad {
>> +             keypad,num-rows = <8>;
>> +             keypad,num-columns = <8>;
>> +             linux,keymap = < 0x02020073
>> +                     0x02030072
>> +                     0x020400e7
>> +                     0x02050066
>> +                     0x0206006b
>> +                     0x020700d9 >;
>> +             linux,input-no-autorepeat;
>> +     };
>
> Again not a coment on your patch, but on DT:
>
> If DT bindings must be OS independent, what then, is that linux keycode doing there?
>
Currently, for all matrix connected keyboards the keymap are defined
in the scope of the
linux key code since that is a stable and standardized interface at this time.

For the above reason , computation of the  keymap uses linux keycode

  row << 24 | column << 16 | linux-key-code
I think this is the primary reason for keeping "linux" prefix with this
property.
> regards,
>
> Koen
>

[PATCH 4/4] arm/dts: omap5-evm: Add bmp085 sensor support

[Sourav Poddar]

Add bmp085 pressure sensor data in omap5 evm dts file.

Tested on omap5430 sdp with 3.5 custom kernel.

Cc: Benoit Cousson <b-cousson@ti.com>
Cc: Felipe Balbi <balbi@ti.com>
Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Sourav Poddar <sourav.poddar@ti.com>
---
 arch/arm/boot/dts/omap5-evm.dts |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)

diff --git a/arch/arm/boot/dts/omap5-evm.dts b/arch/arm/boot/dts/omap5-evm.dts
index 09fe941..956eba0 100644
--- a/arch/arm/boot/dts/omap5-evm.dts
+++ b/arch/arm/boot/dts/omap5-evm.dts
@@ -39,3 +39,12 @@
 		reg = <0x48>;
 	};
 };
+
+&i2c2 {
+	clock-frequency = <400000>;
+
+	bmp085@77 {
+		compatible = "bosch,bmp085";
+		reg = <0x77>;
+	};
+};
-- 
1.7.1