linux-kernel - Re: [PATCH RESEND 2/2] mfd: twl6040: Register child device for twl6040-pdmclk

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Date:   Tue, 27 Sep 2016 11:14:32 +0300
From:   Peter Ujfalusi <peter.ujfalusi@...com>
To:     Lee Jones <lee.jones@...aro.org>
CC:     <linux-omap@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH RESEND 2/2] mfd: twl6040: Register child device for
 twl6040-pdmclk

On 08/31/16 17:39, Lee Jones wrote:
> On Wed, 31 Aug 2016, Peter Ujfalusi wrote:
> 
>> The McPDM in OMAP4/5 is using the pdmclk from twl6040 as functional clock.
>> The twl6040-pdmclk driver provides a clock which can be used to make sure
>> that the pdmclk is active when the McPDM is in use.
>>
>> Signed-off-by: Peter Ujfalusi <peter.ujfalusi@...com>
>> Acked-by: Rob Herring <robh@...nel.org>
>> ---
>>  Documentation/devicetree/bindings/mfd/twl6040.txt | 1 +
>>  drivers/mfd/twl6040.c                             | 5 +++++
>>  include/linux/mfd/twl6040.h                       | 2 +-
>>  3 files changed, 7 insertions(+), 1 deletion(-)
> 
> Applied, thanks.

Lee, for some reason this patch is not found in linux-next (20160927). I can
see patch 1, but this one is missing.

-- 
Péter


>> diff --git a/Documentation/devicetree/bindings/mfd/twl6040.txt b/Documentation/devicetree/bindings/mfd/twl6040.txt
>> index e6afdfa3543d..9a98ee7c323d 100644
>> --- a/Documentation/devicetree/bindings/mfd/twl6040.txt
>> +++ b/Documentation/devicetree/bindings/mfd/twl6040.txt
>> @@ -12,6 +12,7 @@ Required properties:
>>  - interrupt-parent: The parent interrupt controller
>>  - gpio-controller:
>>  - #gpio-cells = <1>: twl6040 provides GPO lines.
>> +- #clock-cells = <0>; twl6040 is a provider of pdmclk which is used by McPDM
>>  - twl6040,audpwron-gpio: Power on GPIO line for the twl6040
>>  
>>  - vio-supply: Regulator for the twl6040 VIO supply
>> diff --git a/drivers/mfd/twl6040.c b/drivers/mfd/twl6040.c
>> index c3ad59ef43dd..d66502d36ba0 100644
>> --- a/drivers/mfd/twl6040.c
>> +++ b/drivers/mfd/twl6040.c
>> @@ -783,6 +783,11 @@ static int twl6040_probe(struct i2c_client *client,
>>  	cell->name = "twl6040-gpo";
>>  	children++;
>>  
>> +	/* PDM clock support  */
>> +	cell = &twl6040->cells[children];
>> +	cell->name = "twl6040-pdmclk";
>> +	children++;
>> +
>>  	/* The chip is powered down so mark regmap to cache only and dirty */
>>  	regcache_cache_only(twl6040->regmap, true);
>>  	regcache_mark_dirty(twl6040->regmap);
>> diff --git a/include/linux/mfd/twl6040.h b/include/linux/mfd/twl6040.h
>> index 36795a1be479..a2e88761c09f 100644
>> --- a/include/linux/mfd/twl6040.h
>> +++ b/include/linux/mfd/twl6040.h
>> @@ -168,7 +168,7 @@
>>  #define TWL6040_VIBROCDET		0x20
>>  #define TWL6040_TSHUTDET                0x40
>>  
>> -#define TWL6040_CELLS			3
>> +#define TWL6040_CELLS			4
>>  
>>  #define TWL6040_REV_ES1_0		0x00
>>  #define TWL6040_REV_ES1_1		0x01 /* Rev ES1.1 and ES1.2 */
>