[Buildroot] [PATCH] package/linux-firmware: Add option to install cadence MHDP8546 DPI/DP bridge firmware

[Andy Yan]

Hello Julien，

At 2025-09-06 04:30:57, "Julien Olivain via buildroot" <buildroot at buildroot.org> wrote:
>Hi Andy,
>
>Thanks for the patch.  I have one comment.  See below.
>
>On 01/09/2025 10:31, Andy Yan wrote:
>> Cadence MHDP8546 DPTX IP used in TI J721E SoC needs the firmware to
>> work.
>> 
>> Signed-off-by: Andy Yan <andyshrk at 163.com>
>> ---
>>  package/linux-firmware/Config.in         | 5 +++++
>>  package/linux-firmware/linux-firmware.mk | 5 +++++
>>  2 files changed, 10 insertions(+)
>> 
>> diff --git a/package/linux-firmware/Config.in 
>> b/package/linux-firmware/Config.in
>> index 778dfef8a0..21dff9768e 100644
>> --- a/package/linux-firmware/Config.in
>> +++ b/package/linux-firmware/Config.in
>> @@ -205,6 +205,11 @@ config BR2_PACKAGE_LINUX_FIRMWARE_BRCM_BCM4366C0
>>  	help
>>  	  Firmware file for the Broadcom 4366c0 FullMAC chip.
>> 
>> +config BR2_PACKAGE_LINUX_FIRMWARE_CDNS_MHDP8546
>> +	bool "Cadence MHDP8546"
>> +	help
>> +	  Firmware file for the Cadence MHDP8546 DPI/DP bridge
>> +
>>  config BR2_PACKAGE_LINUX_FIRMWARE_CYPRESS_CYW43XX
>>  	bool "Cypress CY cyw43xx"
>>  	help
>> diff --git a/package/linux-firmware/linux-firmware.mk 
>> b/package/linux-firmware/linux-firmware.mk
>> index 40758054e5..869e2d668f 100644
>> --- a/package/linux-firmware/linux-firmware.mk
>> +++ b/package/linux-firmware/linux-firmware.mk
>> @@ -913,6 +913,11 @@ LINUX_FIRMWARE_FILES += ti_3410.fw ti_5052.fw \
>>  LINUX_FIRMWARE_ALL_LICENSE_FILES += LICENCE.moxa
>>  endif
>> 
>> +ifeq ($(BR2_PACKAGE_LINUX_FIRMWARE_CDNS_MHDP8546),y)
>> +LINUX_FIRMWARE_FILES += cadence/mhdp8546.bin
>> +LINUX_FIRMWARE_ALL_LICENSE_FILES += LICENCE.cadence
>
>Adding a new licence file here also requires to add the new
>file hash in "package/linux-firmware/linux-firmware.hash".
>
>Running the command "make linux-firmware-legal-info"
>with this firmware selected show the message:
>
>     ERROR: No hash found for LICENCE.cadence
>
>> +endif
>> +
>>  ifeq ($(BR2_PACKAGE_LINUX_FIRMWARE_CX231XX),y)
>>  LINUX_FIRMWARE_FILES += v4l-cx231xx-avcore-01.fw
>>  # No license file; the license is in the file WHENCE
>> --
>> 2.43.0
>
>Could you send an updated patch adding the license hash, please?

Yes， done in V2。
Thanks。

>
>Best regards,
>
>Julien.
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