* Re: [PATCH] bus: mhi: Add mru_default for Quectel EM1xx series modules.
[not found] <MEYP282MB2374C10BC162393B39D78294FD229@MEYP282MB2374.AUSP282.PROD.OUTLOOK.COM>
@ 2022-02-07 8:40 ` Manivannan Sadhasivam
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From: Manivannan Sadhasivam @ 2022-02-07 8:40 UTC (permalink / raw)
To: Yonglin Tan; +Cc: hemantk, mhi, linux-arm-msm, linux-kernel
On Fri, Jan 28, 2022 at 01:24:04PM +0800, Yonglin Tan wrote:
> For default mechanism, the driver uses default MRU 3500 if mru_default
> is not initialized. The Qualcomm configured the MRU size to 32768 in the
> WWAN device FW. So, we align the driver setting with Qualcomm FW setting.
>
> Signed-off-by: Yonglin Tan <yonglin.tan@outlook.com>
Please add the Fixes tag for commit ac4bf60bbaa0 and CC stable list.
Also the subject should be:
"bus: mhi: pci_generic: Add mru_default for Quectel EM1xx series"
With that,
Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>
Thanks,
Mani
> ---
> drivers/bus/mhi/pci_generic.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/bus/mhi/pci_generic.c b/drivers/bus/mhi/pci_generic.c
> index b798958..9527b7d 100644
> --- a/drivers/bus/mhi/pci_generic.c
> +++ b/drivers/bus/mhi/pci_generic.c
> @@ -327,6 +327,7 @@ static const struct mhi_pci_dev_info mhi_quectel_em1xx_info = {
> .config = &modem_quectel_em1xx_config,
> .bar_num = MHI_PCI_DEFAULT_BAR_NUM,
> .dma_data_width = 32,
> + .mru_default = 32768,
> .sideband_wake = true,
> };
>
> --
> 2.7.4
>
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