linux-kernel - Re:Re: [PATCH] bus: mhi: pci_generic: Add new device ID support for T99W175

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Date:   Fri, 29 Oct 2021 18:00:42 +0800 (CST)
From:   "Slark Xiao" <slark_xiao@....com>
To:     "Manivannan Sadhasivam" <mani@...nel.org>
Cc:     hemantk@...eaurora.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re:Re: [PATCH] bus: mhi: pci_generic: Add new device ID support for
 T99W175


At 2021-10-29 17:26:19, "Manivannan Sadhasivam" <mani@...nel.org> wrote:

>Hi,
>
>On Thu, Oct 28, 2021 at 11:44:31AM +0800, Slark Xiao wrote:
>> Add new device ID 0xe0bf for T99W175.
>> 
>
>Thanks for the patch! Can you share the difference between this modem and the
>one (T99W175) we already have with PID 0xe0ab?
>
>Please include the product page in description if any.
>
>Thanks,
>Mani
>
Hi Mani,
   Thanks for this review. 
   Actually this product(SDX55/0xe0bf) is using Qualcomm SDX55 new baseline(LE1.4), 
 and previous T99W175/0xe0ab is using original base line(LE1.2).
   Our customer wants us to use different device ID to separate from each other. 
   Currently we don't have product page  as our customer's new product is not released.

Thanks
Slark
>> Test evidence as below:
>> root@...-ThinkPad-P1-Gen-4:/dev# lspci -nn | grep Foxconn
>> 0000:08:00.0 Wireless controller [0d40]: Foxconn International, Inc. Device [105b:e0bf]
>> root@...-ThinkPad-P1-Gen-4:/dev# cat wwan0at0 & echo -ne "ati\r" > wwan0at0
>> [2] 2977
>> root@...-ThinkPad-P1-Gen-4:/dev# ati
>> Manufacturer: Qualcomm
>> Model: T99W175
>> Revision: T99W175.F0.6.0.0.6.CC.005  1  [Oct 21 2021 10:00:00]
>> IMEI:
>> +GCAP: +CGSM
>> 
>> OK
>> 
>> Signed-off-by: Slark Xiao <slark_xiao@....com>
>> ---
>>  drivers/bus/mhi/pci_generic.c | 3 +++
>>  1 file changed, 3 insertions(+)
>> 
>> diff --git a/drivers/bus/mhi/pci_generic.c b/drivers/bus/mhi/pci_generic.c
>> index 59a4896a8030..566483dc15db 100644
>> --- a/drivers/bus/mhi/pci_generic.c
>> +++ b/drivers/bus/mhi/pci_generic.c
>> @@ -423,6 +423,9 @@ static const struct pci_device_id mhi_pci_id_table[] = {
>>  	/* DW5930e (sdx55), Non-eSIM, It's also T99W175 */
>>  	{ PCI_DEVICE(PCI_VENDOR_ID_FOXCONN, 0xe0b1),
>>  		.driver_data = (kernel_ulong_t) &mhi_foxconn_sdx55_info },
>> +	/* T99W175 (sdx55) */
>> +	{ PCI_DEVICE(PCI_VENDOR_ID_FOXCONN, 0xe0bf),
>> +		.driver_data = (kernel_ulong_t) &mhi_foxconn_sdx55_info },
>>  	/* MV31-W (Cinterion) */
>>  	{ PCI_DEVICE(0x1269, 0x00b3),
>>  		.driver_data = (kernel_ulong_t) &mhi_mv31_info },
>> -- 
>> 2.25.1
>>