| Message ID | 1591768960-31648-14-git-send-email-skomatineni@nvidia.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Support for Tegra video capture from external sensor | expand |
10.06.2020 09:02, Sowjanya Komatineni пишет: > This patch adds an API of_tegra_mipi_request() to allow creating > mipi device for specific device node rather than a device so Tegra > CSI driver can use it for calibrating MIPI pads for each stream > independently. > > Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com> > --- > drivers/gpu/host1x/mipi.c | 10 ++++++++-- > include/linux/host1x.h | 2 ++ > 2 files changed, 10 insertions(+), 2 deletions(-) > > diff --git a/drivers/gpu/host1x/mipi.c b/drivers/gpu/host1x/mipi.c > index e00809d..f51fe69 100644 > --- a/drivers/gpu/host1x/mipi.c > +++ b/drivers/gpu/host1x/mipi.c > @@ -206,9 +206,9 @@ static int tegra_mipi_power_down(struct tegra_mipi *mipi) > return 0; > } > > -struct tegra_mipi_device *tegra_mipi_request(struct device *device) > +struct tegra_mipi_device *of_tegra_mipi_request(struct device *device, > + struct device_node *np) > { > - struct device_node *np = device->of_node; > struct tegra_mipi_device *dev; > struct of_phandle_args args; > int err; > @@ -252,6 +252,12 @@ struct tegra_mipi_device *tegra_mipi_request(struct device *device) > of_node_put(args.np); > return ERR_PTR(err); > } > +EXPORT_SYMBOL(of_tegra_mipi_request); > + > +struct tegra_mipi_device *tegra_mipi_request(struct device *device) > +{ > + return of_tegra_mipi_request(device, device->of_node); > +} > EXPORT_SYMBOL(tegra_mipi_request); > > void tegra_mipi_free(struct tegra_mipi_device *device) > diff --git a/include/linux/host1x.h b/include/linux/host1x.h > index c230b4e..a61ca52 100644 > --- a/include/linux/host1x.h > +++ b/include/linux/host1x.h > @@ -325,6 +325,8 @@ int host1x_client_resume(struct host1x_client *client); > > struct tegra_mipi_device; > > +struct tegra_mipi_device *of_tegra_mipi_request(struct device *device, > + struct device_node *np); Looks like adding a new function here is a bit of overkill. What about to change tegra_mipi_request() to take the node argument?
On 6/10/20 6:33 AM, Dmitry Osipenko wrote: > 10.06.2020 09:02, Sowjanya Komatineni пишет: >> This patch adds an API of_tegra_mipi_request() to allow creating >> mipi device for specific device node rather than a device so Tegra >> CSI driver can use it for calibrating MIPI pads for each stream >> independently. >> >> Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com> >> --- >> drivers/gpu/host1x/mipi.c | 10 ++++++++-- >> include/linux/host1x.h | 2 ++ >> 2 files changed, 10 insertions(+), 2 deletions(-) >> >> diff --git a/drivers/gpu/host1x/mipi.c b/drivers/gpu/host1x/mipi.c >> index e00809d..f51fe69 100644 >> --- a/drivers/gpu/host1x/mipi.c >> +++ b/drivers/gpu/host1x/mipi.c >> @@ -206,9 +206,9 @@ static int tegra_mipi_power_down(struct tegra_mipi *mipi) >> return 0; >> } >> >> -struct tegra_mipi_device *tegra_mipi_request(struct device *device) >> +struct tegra_mipi_device *of_tegra_mipi_request(struct device *device, >> + struct device_node *np) >> { >> - struct device_node *np = device->of_node; >> struct tegra_mipi_device *dev; >> struct of_phandle_args args; >> int err; >> @@ -252,6 +252,12 @@ struct tegra_mipi_device *tegra_mipi_request(struct device *device) >> of_node_put(args.np); >> return ERR_PTR(err); >> } >> +EXPORT_SYMBOL(of_tegra_mipi_request); >> + >> +struct tegra_mipi_device *tegra_mipi_request(struct device *device) >> +{ >> + return of_tegra_mipi_request(device, device->of_node); >> +} >> EXPORT_SYMBOL(tegra_mipi_request); >> >> void tegra_mipi_free(struct tegra_mipi_device *device) >> diff --git a/include/linux/host1x.h b/include/linux/host1x.h >> index c230b4e..a61ca52 100644 >> --- a/include/linux/host1x.h >> +++ b/include/linux/host1x.h >> @@ -325,6 +325,8 @@ int host1x_client_resume(struct host1x_client *client); >> >> struct tegra_mipi_device; >> >> +struct tegra_mipi_device *of_tegra_mipi_request(struct device *device, >> + struct device_node *np); > Looks like adding a new function here is a bit of overkill. What about > to change tegra_mipi_request() to take the node argument? thought to avoid changes to existing usage of that function in other drivers. Will update in v2.
diff --git a/drivers/gpu/host1x/mipi.c b/drivers/gpu/host1x/mipi.c index e00809d..f51fe69 100644 --- a/drivers/gpu/host1x/mipi.c +++ b/drivers/gpu/host1x/mipi.c @@ -206,9 +206,9 @@ static int tegra_mipi_power_down(struct tegra_mipi *mipi) return 0; } -struct tegra_mipi_device *tegra_mipi_request(struct device *device) +struct tegra_mipi_device *of_tegra_mipi_request(struct device *device, + struct device_node *np) { - struct device_node *np = device->of_node; struct tegra_mipi_device *dev; struct of_phandle_args args; int err; @@ -252,6 +252,12 @@ struct tegra_mipi_device *tegra_mipi_request(struct device *device) of_node_put(args.np); return ERR_PTR(err); } +EXPORT_SYMBOL(of_tegra_mipi_request); + +struct tegra_mipi_device *tegra_mipi_request(struct device *device) +{ + return of_tegra_mipi_request(device, device->of_node); +} EXPORT_SYMBOL(tegra_mipi_request); void tegra_mipi_free(struct tegra_mipi_device *device) diff --git a/include/linux/host1x.h b/include/linux/host1x.h index c230b4e..a61ca52 100644 --- a/include/linux/host1x.h +++ b/include/linux/host1x.h @@ -325,6 +325,8 @@ int host1x_client_resume(struct host1x_client *client); struct tegra_mipi_device; +struct tegra_mipi_device *of_tegra_mipi_request(struct device *device, + struct device_node *np); struct tegra_mipi_device *tegra_mipi_request(struct device *device); void tegra_mipi_free(struct tegra_mipi_device *device); int tegra_mipi_enable(struct tegra_mipi_device *device);
This patch adds an API of_tegra_mipi_request() to allow creating mipi device for specific device node rather than a device so Tegra CSI driver can use it for calibrating MIPI pads for each stream independently. Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com> --- drivers/gpu/host1x/mipi.c | 10 ++++++++-- include/linux/host1x.h | 2 ++ 2 files changed, 10 insertions(+), 2 deletions(-)