diff mbox series

[v1] drm/mipi-dsi: Set the fwnode for mipi_dsi_device

Message ID 20230310063910.2474472-1-saravanak@google.com (mailing list archive)
State New, archived
Headers show
Series [v1] drm/mipi-dsi: Set the fwnode for mipi_dsi_device | expand

Commit Message

Saravana Kannan March 10, 2023, 6:39 a.m. UTC
After commit 3fb16866b51d ("driver core: fw_devlink: Make cycle
detection more robust"), fw_devlink prints an error when consumer
devices don't have their fwnode set. This used to be ignored silently.

Set the fwnode mipi_dsi_device so fw_devlink can find them and properly
track their dependencies.

This fixes errors like this:
[    0.334054] nwl-dsi 30a00000.mipi-dsi: Failed to create device link with regulator-lcd-1v8
[    0.346964] nwl-dsi 30a00000.mipi-dsi: Failed to create device link with backlight-dsi

Reported-by: Martin Kepplinger <martin.kepplinger@puri.sm>
Link: https://lore.kernel.org/lkml/2a8e407f4f18c9350f8629a2b5fa18673355b2ae.camel@puri.sm/
Fixes: 068a00233969 ("drm: Add MIPI DSI bus support")
Signed-off-by: Saravana Kannan <saravanak@google.com>
---
 drivers/gpu/drm/drm_mipi_dsi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Martin Kepplinger March 12, 2023, 2:45 p.m. UTC | #1
Am Donnerstag, dem 09.03.2023 um 22:39 -0800 schrieb Saravana Kannan:
> After commit 3fb16866b51d ("driver core: fw_devlink: Make cycle
> detection more robust"), fw_devlink prints an error when consumer
> devices don't have their fwnode set. This used to be ignored
> silently.
> 
> Set the fwnode mipi_dsi_device so fw_devlink can find them and
> properly
> track their dependencies.
> 
> This fixes errors like this:
> [    0.334054] nwl-dsi 30a00000.mipi-dsi: Failed to create device
> link with regulator-lcd-1v8
> [    0.346964] nwl-dsi 30a00000.mipi-dsi: Failed to create device
> link with backlight-dsi
> 
> Reported-by: Martin Kepplinger <martin.kepplinger@puri.sm>

Reported-and-tested-by: Martin Kepplinger <martin.kepplinger@puri.sm>

thanks,
                         martin

> Link: 
> https://lore.kernel.org/lkml/2a8e407f4f18c9350f8629a2b5fa18673355b2ae.camel@puri.sm/
> Fixes: 068a00233969 ("drm: Add MIPI DSI bus support")
> Signed-off-by: Saravana Kannan <saravanak@google.com>
> ---
>  drivers/gpu/drm/drm_mipi_dsi.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/drm_mipi_dsi.c
> b/drivers/gpu/drm/drm_mipi_dsi.c
> index b41aaf2bb9f1..7923cc21b78e 100644
> --- a/drivers/gpu/drm/drm_mipi_dsi.c
> +++ b/drivers/gpu/drm/drm_mipi_dsi.c
> @@ -221,7 +221,7 @@ mipi_dsi_device_register_full(struct
> mipi_dsi_host *host,
>                 return dsi;
>         }
>  
> -       dsi->dev.of_node = info->node;
> +       device_set_node(&dsi->dev, of_fwnode_handle(info->node));
>         dsi->channel = info->channel;
>         strlcpy(dsi->name, info->type, sizeof(dsi->name));
>
Saravana Kannan March 17, 2023, 10:36 p.m. UTC | #2
On Sun, Mar 12, 2023 at 7:45 AM Martin Kepplinger
<martin.kepplinger@puri.sm> wrote:
>
> Am Donnerstag, dem 09.03.2023 um 22:39 -0800 schrieb Saravana Kannan:
> > After commit 3fb16866b51d ("driver core: fw_devlink: Make cycle
> > detection more robust"), fw_devlink prints an error when consumer
> > devices don't have their fwnode set. This used to be ignored
> > silently.
> >
> > Set the fwnode mipi_dsi_device so fw_devlink can find them and
> > properly
> > track their dependencies.
> >
> > This fixes errors like this:
> > [    0.334054] nwl-dsi 30a00000.mipi-dsi: Failed to create device
> > link with regulator-lcd-1v8
> > [    0.346964] nwl-dsi 30a00000.mipi-dsi: Failed to create device
> > link with backlight-dsi
> >
> > Reported-by: Martin Kepplinger <martin.kepplinger@puri.sm>
>
> Reported-and-tested-by: Martin Kepplinger <martin.kepplinger@puri.sm>

Maintainers,

Nudge nudge. Will this be picked up for 6.3-rcX?

-Saravana

>
> thanks,
>                          martin
>
> > Link:
> > https://lore.kernel.org/lkml/2a8e407f4f18c9350f8629a2b5fa18673355b2ae.camel@puri.sm/
> > Fixes: 068a00233969 ("drm: Add MIPI DSI bus support")
> > Signed-off-by: Saravana Kannan <saravanak@google.com>
> > ---
> >  drivers/gpu/drm/drm_mipi_dsi.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/gpu/drm/drm_mipi_dsi.c
> > b/drivers/gpu/drm/drm_mipi_dsi.c
> > index b41aaf2bb9f1..7923cc21b78e 100644
> > --- a/drivers/gpu/drm/drm_mipi_dsi.c
> > +++ b/drivers/gpu/drm/drm_mipi_dsi.c
> > @@ -221,7 +221,7 @@ mipi_dsi_device_register_full(struct
> > mipi_dsi_host *host,
> >                 return dsi;
> >         }
> >
> > -       dsi->dev.of_node = info->node;
> > +       device_set_node(&dsi->dev, of_fwnode_handle(info->node));
> >         dsi->channel = info->channel;
> >         strlcpy(dsi->name, info->type, sizeof(dsi->name));
> >
>
>
> --
> To unsubscribe from this group and stop receiving emails from it, send an email to kernel-team+unsubscribe@android.com.
>
Saravana Kannan May 4, 2023, 4:40 a.m. UTC | #3
On Fri, Mar 17, 2023 at 3:36 PM Saravana Kannan <saravanak@google.com> wrote:
>
> On Sun, Mar 12, 2023 at 7:45 AM Martin Kepplinger
> <martin.kepplinger@puri.sm> wrote:
> >
> > Am Donnerstag, dem 09.03.2023 um 22:39 -0800 schrieb Saravana Kannan:
> > > After commit 3fb16866b51d ("driver core: fw_devlink: Make cycle
> > > detection more robust"), fw_devlink prints an error when consumer
> > > devices don't have their fwnode set. This used to be ignored
> > > silently.
> > >
> > > Set the fwnode mipi_dsi_device so fw_devlink can find them and
> > > properly
> > > track their dependencies.
> > >
> > > This fixes errors like this:
> > > [    0.334054] nwl-dsi 30a00000.mipi-dsi: Failed to create device
> > > link with regulator-lcd-1v8
> > > [    0.346964] nwl-dsi 30a00000.mipi-dsi: Failed to create device
> > > link with backlight-dsi
> > >
> > > Reported-by: Martin Kepplinger <martin.kepplinger@puri.sm>
> >
> > Reported-and-tested-by: Martin Kepplinger <martin.kepplinger@puri.sm>
>
> Maintainers,
>
> Nudge nudge. Will this be picked up for 6.3-rcX?

Greg,

Can you pick this up please? It's a fix that hasn't been picked up for
a few months.

Here's the link to the actual patch for your convenience:
https://lore.kernel.org/lkml/20230310063910.2474472-1-saravanak@google.com/#t

-Saravana

>
> -Saravana
>
> >
> > thanks,
> >                          martin
> >
> > > Link:
> > > https://lore.kernel.org/lkml/2a8e407f4f18c9350f8629a2b5fa18673355b2ae.camel@puri.sm/
> > > Fixes: 068a00233969 ("drm: Add MIPI DSI bus support")
> > > Signed-off-by: Saravana Kannan <saravanak@google.com>
> > > ---
> > >  drivers/gpu/drm/drm_mipi_dsi.c | 2 +-
> > >  1 file changed, 1 insertion(+), 1 deletion(-)
> > >
> > > diff --git a/drivers/gpu/drm/drm_mipi_dsi.c
> > > b/drivers/gpu/drm/drm_mipi_dsi.c
> > > index b41aaf2bb9f1..7923cc21b78e 100644
> > > --- a/drivers/gpu/drm/drm_mipi_dsi.c
> > > +++ b/drivers/gpu/drm/drm_mipi_dsi.c
> > > @@ -221,7 +221,7 @@ mipi_dsi_device_register_full(struct
> > > mipi_dsi_host *host,
> > >                 return dsi;
> > >         }
> > >
> > > -       dsi->dev.of_node = info->node;
> > > +       device_set_node(&dsi->dev, of_fwnode_handle(info->node));
> > >         dsi->channel = info->channel;
> > >         strlcpy(dsi->name, info->type, sizeof(dsi->name));
> > >
> >
> >
> > --
> > To unsubscribe from this group and stop receiving emails from it, send an email to kernel-team+unsubscribe@android.com.
> >
Maxime Ripard May 4, 2023, 7:50 a.m. UTC | #4
On Thu, 09 Mar 2023 22:39:09 -0800, Saravana Kannan wrote:
> After commit 3fb16866b51d ("driver core: fw_devlink: Make cycle
> detection more robust"), fw_devlink prints an error when consumer
> devices don't have their fwnode set. This used to be ignored silently.
> 
> Set the fwnode mipi_dsi_device so fw_devlink can find them and properly
> track their dependencies.
> 
> [...]

Applied to drm/drm-misc (drm-misc-fixes).

Thanks!
Maxime
Maxime Ripard May 4, 2023, 7:51 a.m. UTC | #5
Hi Saravana,

On Wed, May 03, 2023 at 09:40:05PM -0700, Saravana Kannan wrote:
> On Fri, Mar 17, 2023 at 3:36 PM Saravana Kannan <saravanak@google.com> wrote:
> >
> > On Sun, Mar 12, 2023 at 7:45 AM Martin Kepplinger
> > <martin.kepplinger@puri.sm> wrote:
> > >
> > > Am Donnerstag, dem 09.03.2023 um 22:39 -0800 schrieb Saravana Kannan:
> > > > After commit 3fb16866b51d ("driver core: fw_devlink: Make cycle
> > > > detection more robust"), fw_devlink prints an error when consumer
> > > > devices don't have their fwnode set. This used to be ignored
> > > > silently.
> > > >
> > > > Set the fwnode mipi_dsi_device so fw_devlink can find them and
> > > > properly
> > > > track their dependencies.
> > > >
> > > > This fixes errors like this:
> > > > [    0.334054] nwl-dsi 30a00000.mipi-dsi: Failed to create device
> > > > link with regulator-lcd-1v8
> > > > [    0.346964] nwl-dsi 30a00000.mipi-dsi: Failed to create device
> > > > link with backlight-dsi
> > > >
> > > > Reported-by: Martin Kepplinger <martin.kepplinger@puri.sm>
> > >
> > > Reported-and-tested-by: Martin Kepplinger <martin.kepplinger@puri.sm>
> >
> > Maintainers,
> >
> > Nudge nudge. Will this be picked up for 6.3-rcX?
> 
> Greg,
> 
> Can you pick this up please? It's a fix that hasn't been picked up for
> a few months.
> 
> Here's the link to the actual patch for your convenience:
> https://lore.kernel.org/lkml/20230310063910.2474472-1-saravanak@google.com/#t

Sorry, I'm not quite sure what happened. I've applied it to drm-misc-fixes

Maxime
Saravana Kannan May 4, 2023, 7:21 p.m. UTC | #6
On Thu, May 4, 2023 at 12:51 AM Maxime Ripard <maxime@cerno.tech> wrote:
>
> Hi Saravana,
>
> On Wed, May 03, 2023 at 09:40:05PM -0700, Saravana Kannan wrote:
> > On Fri, Mar 17, 2023 at 3:36 PM Saravana Kannan <saravanak@google.com> wrote:
> > >
> > > On Sun, Mar 12, 2023 at 7:45 AM Martin Kepplinger
> > > <martin.kepplinger@puri.sm> wrote:
> > > >
> > > > Am Donnerstag, dem 09.03.2023 um 22:39 -0800 schrieb Saravana Kannan:
> > > > > After commit 3fb16866b51d ("driver core: fw_devlink: Make cycle
> > > > > detection more robust"), fw_devlink prints an error when consumer
> > > > > devices don't have their fwnode set. This used to be ignored
> > > > > silently.
> > > > >
> > > > > Set the fwnode mipi_dsi_device so fw_devlink can find them and
> > > > > properly
> > > > > track their dependencies.
> > > > >
> > > > > This fixes errors like this:
> > > > > [    0.334054] nwl-dsi 30a00000.mipi-dsi: Failed to create device
> > > > > link with regulator-lcd-1v8
> > > > > [    0.346964] nwl-dsi 30a00000.mipi-dsi: Failed to create device
> > > > > link with backlight-dsi
> > > > >
> > > > > Reported-by: Martin Kepplinger <martin.kepplinger@puri.sm>
> > > >
> > > > Reported-and-tested-by: Martin Kepplinger <martin.kepplinger@puri.sm>
> > >
> > > Maintainers,
> > >
> > > Nudge nudge. Will this be picked up for 6.3-rcX?
> >
> > Greg,
> >
> > Can you pick this up please? It's a fix that hasn't been picked up for
> > a few months.
> >
> > Here's the link to the actual patch for your convenience:
> > https://lore.kernel.org/lkml/20230310063910.2474472-1-saravanak@google.com/#t
>
> Sorry, I'm not quite sure what happened. I've applied it to drm-misc-fixes

No worries. Thanks Maxime!

-Saravana
diff mbox series

Patch

diff --git a/drivers/gpu/drm/drm_mipi_dsi.c b/drivers/gpu/drm/drm_mipi_dsi.c
index b41aaf2bb9f1..7923cc21b78e 100644
--- a/drivers/gpu/drm/drm_mipi_dsi.c
+++ b/drivers/gpu/drm/drm_mipi_dsi.c
@@ -221,7 +221,7 @@  mipi_dsi_device_register_full(struct mipi_dsi_host *host,
 		return dsi;
 	}
 
-	dsi->dev.of_node = info->node;
+	device_set_node(&dsi->dev, of_fwnode_handle(info->node));
 	dsi->channel = info->channel;
 	strlcpy(dsi->name, info->type, sizeof(dsi->name));