| Message ID | 20240701021216.17734-2-slark_xiao@163.com (mailing list archive) |
|---|---|
| State | Not Applicable |
| Headers | show |
| Series | [v4,1/3] bus: mhi: host: Add Foxconn SDX72 related support | expand |
On 6/30/2024 8:12 PM, Slark Xiao wrote: > For SDX72 MBIM mode, it starts data mux id from 112 instead of 0. > This would lead to device can't ping outside successfully. > Also MBIM side would report "bad packet session (112)".In order to > fix this issue, we decide to use the device name of MHI controller > to do a match in client driver side. Then client driver could set > a corresponding mux_id value for this MHI product. > > Signed-off-by: Slark Xiao <slark_xiao@163.com> > +++ b/include/linux/mhi.h > @@ -289,6 +289,7 @@ struct mhi_controller_config { > }; > > /** > + * @name: device name of the MHI controller This needs to be below the next line > * struct mhi_controller - Master MHI controller structure > * @cntrl_dev: Pointer to the struct device of physical bus acting as the MHI > * controller (required) > @@ -367,6 +368,7 @@ struct mhi_controller_config { > * they can be populated depending on the usecase. > */ > struct mhi_controller { > + const char *name; > struct device *cntrl_dev; > struct mhi_device *mhi_dev; > struct dentry *debugfs_dentry;
On Mon, Jul 01, 2024 at 09:13:50AM -0600, Jeffrey Hugo wrote: > On 6/30/2024 8:12 PM, Slark Xiao wrote: > > For SDX72 MBIM mode, it starts data mux id from 112 instead of 0. > > This would lead to device can't ping outside successfully. > > Also MBIM side would report "bad packet session (112)".In order to > > fix this issue, we decide to use the device name of MHI controller > > to do a match in client driver side. Then client driver could set > > a corresponding mux_id value for this MHI product. > > > > Signed-off-by: Slark Xiao <slark_xiao@163.com> > > +++ b/include/linux/mhi.h > > @@ -289,6 +289,7 @@ struct mhi_controller_config { > > }; > > /** > > + * @name: device name of the MHI controller > > This needs to be below the next line > If this is the only comment of the whole series, I will fix it up while applying. Otherwise, fix it while sending next revision. With that, Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> - Mani > > * struct mhi_controller - Master MHI controller structure > > * @cntrl_dev: Pointer to the struct device of physical bus acting as the MHI > > * controller (required) > > @@ -367,6 +368,7 @@ struct mhi_controller_config { > > * they can be populated depending on the usecase. > > */ > > struct mhi_controller { > > + const char *name; > > struct device *cntrl_dev; > > struct mhi_device *mhi_dev; > > struct dentry *debugfs_dentry; >
At 2024-07-02 00:27:15, "Manivannan Sadhasivam" <manivannan.sadhasivam@linaro.org> wrote: >On Mon, Jul 01, 2024 at 09:13:50AM -0600, Jeffrey Hugo wrote: >> On 6/30/2024 8:12 PM, Slark Xiao wrote: >> > For SDX72 MBIM mode, it starts data mux id from 112 instead of 0. >> > This would lead to device can't ping outside successfully. >> > Also MBIM side would report "bad packet session (112)".In order to >> > fix this issue, we decide to use the device name of MHI controller >> > to do a match in client driver side. Then client driver could set >> > a corresponding mux_id value for this MHI product. >> > >> > Signed-off-by: Slark Xiao <slark_xiao@163.com> >> > +++ b/include/linux/mhi.h >> > @@ -289,6 +289,7 @@ struct mhi_controller_config { >> > }; >> > /** >> > + * @name: device name of the MHI controller >> >> This needs to be below the next line >> > >If this is the only comment of the whole series, I will fix it up while >applying. Otherwise, fix it while sending next revision. > >With that, > >Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> > >- Mani Thanks for that^^ > >> > * struct mhi_controller - Master MHI controller structure >> > * @cntrl_dev: Pointer to the struct device of physical bus acting as the MHI >> > * controller (required) >> > @@ -367,6 +368,7 @@ struct mhi_controller_config { >> > * they can be populated depending on the usecase. >> > */ >> > struct mhi_controller { >> > + const char *name; >> > struct device *cntrl_dev; >> > struct mhi_device *mhi_dev; >> > struct dentry *debugfs_dentry; >> > >-- >மணிவண்ணன் சதாசிவம்
diff --git a/drivers/bus/mhi/host/pci_generic.c b/drivers/bus/mhi/host/pci_generic.c index 1fb1c2f2fe12..14a11880bcea 100644 --- a/drivers/bus/mhi/host/pci_generic.c +++ b/drivers/bus/mhi/host/pci_generic.c @@ -1086,6 +1086,7 @@ static int mhi_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) mhi_cntrl->runtime_get = mhi_pci_runtime_get; mhi_cntrl->runtime_put = mhi_pci_runtime_put; mhi_cntrl->mru = info->mru_default; + mhi_cntrl->name = info->name; if (info->edl_trigger) mhi_cntrl->edl_trigger = mhi_pci_generic_edl_trigger; diff --git a/include/linux/mhi.h b/include/linux/mhi.h index b573f15762f8..d45058d3dbed 100644 --- a/include/linux/mhi.h +++ b/include/linux/mhi.h @@ -289,6 +289,7 @@ struct mhi_controller_config { }; /** + * @name: device name of the MHI controller * struct mhi_controller - Master MHI controller structure * @cntrl_dev: Pointer to the struct device of physical bus acting as the MHI * controller (required) @@ -367,6 +368,7 @@ struct mhi_controller_config { * they can be populated depending on the usecase. */ struct mhi_controller { + const char *name; struct device *cntrl_dev; struct mhi_device *mhi_dev; struct dentry *debugfs_dentry;
For SDX72 MBIM mode, it starts data mux id from 112 instead of 0. This would lead to device can't ping outside successfully. Also MBIM side would report "bad packet session (112)".In order to fix this issue, we decide to use the device name of MHI controller to do a match in client driver side. Then client driver could set a corresponding mux_id value for this MHI product. Signed-off-by: Slark Xiao <slark_xiao@163.com> --- v2: Remove Fix flag v3: Use name match solution instead of use mux_id v4: Update the description of new member 'name' and move it to right position --- drivers/bus/mhi/host/pci_generic.c | 1 + include/linux/mhi.h | 2 ++ 2 files changed, 3 insertions(+)