linux-kernel - Re: [PATCH] arm: dts: twl6030: typical connection to omap4 as a separate dtsi file

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Message-ID: <51E948F0.4070307@ti.com>
Date:	Fri, 19 Jul 2013 09:10:56 -0500
From:	Nishanth Menon <nm@...com>
To:	Ruslan Bilovol <ruslan.bilovol@...com>
CC:	<benoit.cousson@...aro.org>, <tony@...mide.com>,
	<devicetree-discuss@...ts.ozlabs.org>,
	<linux-omap@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] arm: dts: twl6030: typical connection to omap4 as a separate
 dtsi file

On 07/19/2013 07:10 AM, Ruslan Bilovol wrote:
> The OMAP4 SoC family uses specially-designed
> PMIC (power management IC) companion chip for power
> management needs: TWL6030/TWL6032.
> Therefore there is a typical connection of PMIC to OMAP4
> so we can figure it out into separate .dtsi file
> and do not duplicate over board-specific files.
>
> Tested on OMAP4 SDP board and compile-tested for Panda board
>
> Signed-off-by: Ruslan Bilovol <ruslan.bilovol@...com>
> ---
>   arch/arm/boot/dts/omap4-panda-common.dtsi |   21 +---------------
>   arch/arm/boot/dts/omap4-sdp.dts           |   21 +---------------
>   arch/arm/boot/dts/twl6030_omap4.dtsi      |   38 +++++++++++++++++++++++++++++
arch/arm/boot/dts/omap4-var-som.dts ?

>   3 files changed, 40 insertions(+), 40 deletions(-)
>   create mode 100644 arch/arm/boot/dts/twl6030_omap4.dtsi
>
> diff --git a/arch/arm/boot/dts/omap4-panda-common.dtsi b/arch/arm/boot/dts/omap4-panda-common.dtsi
> index faa95b5..d796302 100644
> --- a/arch/arm/boot/dts/omap4-panda-common.dtsi
> +++ b/arch/arm/boot/dts/omap4-panda-common.dtsi
> @@ -109,23 +109,9 @@
>   	};
>   };
>
> -&omap4_pmx_wkup {
> -	pinctrl-names = "default";
> -	pinctrl-0 = <
> -			&twl6030_wkup_pins
> -	>;
> -
> -	twl6030_wkup_pins: pinmux_twl6030_wkup_pins {
> -		pinctrl-single,pins = <
> -			0x14 (PIN_OUTPUT | MUX_MODE2)		/* fref_clk0_out.sys_drm_msecure */
> -		>;
> -	};
> -};
> -
>   &omap4_pmx_core {
>   	pinctrl-names = "default";
>   	pinctrl-0 = <
> -			&twl6030_pins
>   			&twl6040_pins
>   			&mcpdm_pins
>   			&mcbsp1_pins
> @@ -134,12 +120,6 @@
>   			&hsusbb1_pins
>   	>;
>
> -	twl6030_pins: pinmux_twl6030_pins {
> -		pinctrl-single,pins = <
> -			0x15e (WAKEUP_EN | PIN_INPUT_PULLUP | MUX_MODE0)	/* sys_nirq1.sys_nirq1 */
> -		>;
> -	};
> -
>   	twl6040_pins: pinmux_twl6040_pins {
>   		pinctrl-single,pins = <
>   			0xe0 (PIN_OUTPUT | MUX_MODE3)	/* hdq_sio.gpio_127 */
> @@ -265,6 +245,7 @@
>   };
>
>   #include "twl6030.dtsi"
> +#include "twl6030_omap4.dtsi"
>
>   &i2c2 {
>   	pinctrl-names = "default";
> diff --git a/arch/arm/boot/dts/omap4-sdp.dts b/arch/arm/boot/dts/omap4-sdp.dts
> index 7951b4e..91030c3 100644
> --- a/arch/arm/boot/dts/omap4-sdp.dts
> +++ b/arch/arm/boot/dts/omap4-sdp.dts
> @@ -142,23 +142,9 @@
>   	};
>   };
>
> -&omap4_pmx_wkup {
> -	pinctrl-names = "default";
> -	pinctrl-0 = <
> -			&twl6030_wkup_pins
> -	>;
> -
> -	twl6030_wkup_pins: pinmux_twl6030_wkup_pins {
> -		pinctrl-single,pins = <
> -			0x14 (PIN_OUTPUT | MUX_MODE2)		/* fref_clk0_out.sys_drm_msecure */
> -		>;
> -	};
> -};
> -
>   &omap4_pmx_core {
>   	pinctrl-names = "default";
>   	pinctrl-0 = <
> -			&twl6030_pins
>   			&twl6040_pins
>   			&mcpdm_pins
>   			&dmic_pins
> @@ -193,12 +179,6 @@
>   		>;
>   	};
>
> -	twl6030_pins: pinmux_twl6030_pins {
> -		pinctrl-single,pins = <
> -			0x15e (WAKEUP_EN | PIN_INPUT_PULLUP | MUX_MODE0)	/* sys_nirq1.sys_nirq1 */
> -		>;
> -	};
> -
>   	twl6040_pins: pinmux_twl6040_pins {
>   		pinctrl-single,pins = <
>   			0xe0 (PIN_OUTPUT | MUX_MODE3)		/* hdq_sio.gpio_127 */
> @@ -337,6 +317,7 @@
>   };
>
>   #include "twl6030.dtsi"
> +#include "twl6030_omap4.dtsi"
>
>   &i2c2 {
>   	pinctrl-names = "default";
> diff --git a/arch/arm/boot/dts/twl6030_omap4.dtsi b/arch/arm/boot/dts/twl6030_omap4.dtsi
> new file mode 100644
> index 0000000..a4fa570
> --- /dev/null
> +++ b/arch/arm/boot/dts/twl6030_omap4.dtsi
> @@ -0,0 +1,38 @@
> +/*
> + * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> + */
> +
> +&twl {
> +	/*
> +	 * On most OMAP4 platforms, the twl6030 IRQ line is connected
> +	 * to the SYS_NIRQ1 line on OMAP and the twl6030 MSECURE line is
> +	 * connected to the fref_clk0_out.sys_drm_msecure line.
> +	 * Therefore, configure the defaults for the SYS_NIRQ1 and
> +	 * fref_clk0_out.sys_drm_msecure pins here.
> +	 */
> +	pinctrl-names = "default";
> +	pinctrl-0 = <
> +		&twl6030_pins
> +		&twl6030_wkup_pins
> +	>;
> +};
> +
> +&omap4_pmx_wkup {
> +	twl6030_wkup_pins: pinmux_twl6030_wkup_pins {
> +		pinctrl-single,pins = <
> +			0x14 (PIN_OUTPUT | MUX_MODE2)		/* fref_clk0_out.sys_drm_msecure */
> +		>;
> +	};
> +};
> +
> +&omap4_pmx_core {
> +	twl6030_pins: pinmux_twl6030_pins {
> +		pinctrl-single,pins = <
> +			0x15e (WAKEUP_EN | PIN_INPUT_PULLUP | MUX_MODE0)	/* sys_nirq1.sys_nirq1 */
> +		>;
> +	};
> +};
>


-- 
Regards,
Nishanth Menon
--
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