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Date: Mon, 22 Jul 2013 19:30:55 +0300
From: Ruslan Bilovol <ruslan.bilovol@...com>
To: Nishanth Menon <nm@...com>
Cc: benoit.cousson@...aro.org, tony@...mide.com,
devicetree@...r.kernel.org, linux-omap@...r.kernel.org,
linux-kernel@...r.kernel.org, uri.y@...iscite.com
Subject: Re: [PATCH] arm: dts: twl6030: typical connection to omap4 as a
separate dtsi file
Also CCing correct devicetree list that was changed recently
On Mon, Jul 22, 2013 at 7:24 PM, Ruslan Bilovol <ruslan.bilovol@...com> wrote:
> Hi Nishanth,
>
> On Fri, Jul 19, 2013 at 5:10 PM, Nishanth Menon <nm@...com> wrote:
>>
>> 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 ?
>
> There is no muxing for TWL6030 in that file at all, so I didn't add it.
> Moreover, that file seems to be not maintained since added (just
> generic fixes or framework changes that came to all other files)
> Second thing - I do not have schematics and HW for verification.
> But if somebody from Variscite can confirm that omap4 is typically
> connected to PMIC, I'm happy to add it as separate patch.
> So I CCed Uri Yosef who is original author of the omap4-var-som.dts
>
> Regards,
> Ruslan
>
>>
>>> 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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