linux-kernel - Re: [PATCH] ARM: dts: bcm283x: Fix hdmi hpd-gpio pin

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Message-ID: <e3872f3a-9736-4507-bbd3-2ad7698562b4@gmx.net>
Date: Tue, 16 Jul 2024 07:30:32 +0200
From: Stefan Wahren <wahrenst@....net>
To: Florian Fainelli <f.fainelli@...il.com>, Florian Klink
 <flokli@...kli.de>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>, Florian Fainelli <florian.fainelli@...adcom.com>,
 Ray Jui <rjui@...adcom.com>, Scott Branden <sbranden@...adcom.com>,
 Broadcom internal kernel review list
 <bcm-kernel-feedback-list@...adcom.com>, devicetree@...r.kernel.org,
 linux-rpi-kernel@...ts.infradead.org, linux-arm-kernel@...ts.infradead.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ARM: dts: bcm283x: Fix hdmi hpd-gpio pin

Hi,

Am 16.07.24 um 01:19 schrieb Florian Fainelli:
> +Stefan,
>
> On 7/15/24 16:03, Florian Klink wrote:
>> HDMI_HPD_N_1V8 is connected to GPIO pin 0, not 1.
>>
>> This fixes HDMI hotplug/output detection.
>>
>> See https://datasheets.raspberrypi.com/cm/cm3-schematics.pdf
>>
>> Signed-off-by: Florian Klink <flokli@...kli.de>
>
> Assuming Stefan is OK wit the change, I will apply this along with a:
>
> Fixes: a54fe8a6cf66 ("ARM: dts: add Raspberry Pi Compute Module 3 and
> IO board")
thanks for fixing and i'm fine with this change. The GPIO line names are
already correct.

Maybe the subject should be more specific:

ARM: dts: bcm2837-rpi-cm3-io3: Fix HDMI hpd-gpio pin

Except of this:

Reviewed-by: Stefan Wahren <wahrenst@....net>

Regards
>
>> ---
>>   arch/arm/boot/dts/broadcom/bcm2837-rpi-cm3-io3.dts | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/arch/arm/boot/dts/broadcom/bcm2837-rpi-cm3-io3.dts
>> b/arch/arm/boot/dts/broadcom/bcm2837-rpi-cm3-io3.dts
>> index 72d26d130efa..85f54fa595aa 100644
>> --- a/arch/arm/boot/dts/broadcom/bcm2837-rpi-cm3-io3.dts
>> +++ b/arch/arm/boot/dts/broadcom/bcm2837-rpi-cm3-io3.dts
>> @@ -77,7 +77,7 @@ &gpio {
>>   };
>>     &hdmi {
>> -    hpd-gpios = <&expgpio 1 GPIO_ACTIVE_LOW>;
>> +    hpd-gpios = <&expgpio 0 GPIO_ACTIVE_LOW>;
>>       power-domains = <&power RPI_POWER_DOMAIN_HDMI>;
>>       status = "okay";
>>   };
>