linux-kernel - Re: [PATCH v2 2/3] drm/bridge: parade-ps8640: Move real poweroff action to new function

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Date:   Wed, 10 Nov 2021 13:46:25 +0100
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     Dafna Hirschfeld <dafna.hirschfeld@...labora.com>,
        a.hajda@...sung.com
Cc:     narmstrong@...libre.com, robert.foss@...aro.org,
        Laurent.pinchart@...asonboard.com, jonas@...boo.se,
        jernej.skrabec@...il.com, airlied@...ux.ie, daniel@...ll.ch,
        dri-devel@...ts.freedesktop.org, kernel@...labora.com,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 2/3] drm/bridge: parade-ps8640: Move real poweroff
 action to new function

Il 10/11/21 13:44, Dafna Hirschfeld ha scritto:
> 
> 
> On 02.11.21 11:36, AngeloGioacchino Del Regno wrote:
>> In preparation for varying the poweron error handling in function
>> ps8640_bridge_poweron(), move function ps8640_bridge_poweroff() up
>> and also move the actual logic to power off the chip to a new
>> __ps8640_bridge_poweroff() function.
>>
>> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
>> ---
>>   drivers/gpu/drm/bridge/parade-ps8640.c | 37 ++++++++++++++------------
>>   1 file changed, 20 insertions(+), 17 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/bridge/parade-ps8640.c 
>> b/drivers/gpu/drm/bridge/parade-ps8640.c
>> index 8c5402947b3c..41f5d511d516 100644
>> --- a/drivers/gpu/drm/bridge/parade-ps8640.c
>> +++ b/drivers/gpu/drm/bridge/parade-ps8640.c
>> @@ -293,6 +293,26 @@ static int ps8640_bridge_vdo_control(struct ps8640 *ps_bridge,
>>       return 0;
>>   }
>> +static void __ps8640_bridge_poweroff(struct ps8640 *ps_bridge)
>> +{
>> +    gpiod_set_value(ps_bridge->gpio_reset, 1);
>> +    gpiod_set_value(ps_bridge->gpio_powerdown, 1);
>> +    if (regulator_bulk_disable(ARRAY_SIZE(ps_bridge->supplies),
>> +                   ps_bridge->supplies)) {
>> +        DRM_ERROR("cannot disable regulators\n");
>> +    }
> 
> That '{' is redundant
> 
> Thanks,
> Danfa
> 

Hi Dafna,
the braces were added as a way to increase human readability.

Cheers,
- Angelo