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 15:55:26 +0530
From:   Manivannan Sadhasivam <mani@...nel.org>
To:     Slark Xiao <slark_xiao@....com>
Cc:     Manivannan Sadhasivam <mani@...nel.org>, 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

On Fri, Oct 29, 2021 at 06:00:42PM +0800, Slark Xiao wrote:
> 
> 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 for the explanation. Please send v2 adding the baseline info in commit
description.

Thanks,
Mani

> 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
> >>