2021-10-22 12:40:10

by Peng Fan (OSS)

[permalink] [raw]
Subject: [PATCH V2] clk: imx: imx8ulp: set suppress_bind_attrs to true

From: Peng Fan <[email protected]>

The clock driver is registered as platform devices and
it is possible to reloading the driver at runtime.

But actually the clocks should never be removed to make system work,
attempting to bind again would result in a crash, because almost all
devices depends on clock to function well.

Signed-off-by: Peng Fan <[email protected]>
---

V2:
Update commit log to explain more

drivers/clk/imx/clk-imx8ulp.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/clk/imx/clk-imx8ulp.c b/drivers/clk/imx/clk-imx8ulp.c
index 6699437e17b8..8eb1af2d6429 100644
--- a/drivers/clk/imx/clk-imx8ulp.c
+++ b/drivers/clk/imx/clk-imx8ulp.c
@@ -559,6 +559,7 @@ static struct platform_driver imx8ulp_clk_driver = {
.probe = imx8ulp_clk_probe,
.driver = {
.name = KBUILD_MODNAME,
+ .suppress_bind_attrs = true,
.of_match_table = imx8ulp_clk_dt_ids,
},
};
--
2.30.0


2021-11-20 12:04:37

by Peng Fan

[permalink] [raw]
Subject: RE: [PATCH V2] clk: imx: imx8ulp: set suppress_bind_attrs to true

> Subject: [PATCH V2] clk: imx: imx8ulp: set suppress_bind_attrs to true

Ping..

Thanks,
Peng.

>
> From: Peng Fan <[email protected]>
>
> The clock driver is registered as platform devices and it is possible to reloading
> the driver at runtime.
>
> But actually the clocks should never be removed to make system work,
> attempting to bind again would result in a crash, because almost all devices
> depends on clock to function well.
>
> Signed-off-by: Peng Fan <[email protected]>
> ---
>
> V2:
> Update commit log to explain more
>
> drivers/clk/imx/clk-imx8ulp.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/clk/imx/clk-imx8ulp.c b/drivers/clk/imx/clk-imx8ulp.c
> index 6699437e17b8..8eb1af2d6429 100644
> --- a/drivers/clk/imx/clk-imx8ulp.c
> +++ b/drivers/clk/imx/clk-imx8ulp.c
> @@ -559,6 +559,7 @@ static struct platform_driver imx8ulp_clk_driver = {
> .probe = imx8ulp_clk_probe,
> .driver = {
> .name = KBUILD_MODNAME,
> + .suppress_bind_attrs = true,
> .of_match_table = imx8ulp_clk_dt_ids,
> },
> };
> --
> 2.30.0


2021-11-20 20:18:30

by Abel Vesa

[permalink] [raw]
Subject: Re: [PATCH V2] clk: imx: imx8ulp: set suppress_bind_attrs to true

On 21-10-22 21:15:13, Peng Fan (OSS) wrote:
> From: Peng Fan <[email protected]>
>
> The clock driver is registered as platform devices and
> it is possible to reloading the driver at runtime.
>
> But actually the clocks should never be removed to make system work,
> attempting to bind again would result in a crash, because almost all
> devices depends on clock to function well.
>
> Signed-off-by: Peng Fan <[email protected]>

Reviewed-by: Abel Vesa <[email protected]>

I'll apply it to clk/imx on Monday.

> ---
>
> V2:
> Update commit log to explain more
>
> drivers/clk/imx/clk-imx8ulp.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/clk/imx/clk-imx8ulp.c b/drivers/clk/imx/clk-imx8ulp.c
> index 6699437e17b8..8eb1af2d6429 100644
> --- a/drivers/clk/imx/clk-imx8ulp.c
> +++ b/drivers/clk/imx/clk-imx8ulp.c
> @@ -559,6 +559,7 @@ static struct platform_driver imx8ulp_clk_driver = {
> .probe = imx8ulp_clk_probe,
> .driver = {
> .name = KBUILD_MODNAME,
> + .suppress_bind_attrs = true,
> .of_match_table = imx8ulp_clk_dt_ids,
> },
> };
> --
> 2.30.0
>

2021-11-22 13:13:16

by Abel Vesa

[permalink] [raw]
Subject: Re: [PATCH V2] clk: imx: imx8ulp: set suppress_bind_attrs to true

On 21-11-20 14:04:30, Peng Fan wrote:
> > Subject: [PATCH V2] clk: imx: imx8ulp: set suppress_bind_attrs to true
>
> Ping..
>

Applied, thanks.

> Thanks,
> Peng.
>
> >
> > From: Peng Fan <[email protected]>
> >
> > The clock driver is registered as platform devices and it is possible to reloading
> > the driver at runtime.
> >
> > But actually the clocks should never be removed to make system work,
> > attempting to bind again would result in a crash, because almost all devices
> > depends on clock to function well.
> >
> > Signed-off-by: Peng Fan <[email protected]>
> > ---
> >
> > V2:
> > Update commit log to explain more
> >
> > drivers/clk/imx/clk-imx8ulp.c | 1 +
> > 1 file changed, 1 insertion(+)
> >
> > diff --git a/drivers/clk/imx/clk-imx8ulp.c b/drivers/clk/imx/clk-imx8ulp.c
> > index 6699437e17b8..8eb1af2d6429 100644
> > --- a/drivers/clk/imx/clk-imx8ulp.c
> > +++ b/drivers/clk/imx/clk-imx8ulp.c
> > @@ -559,6 +559,7 @@ static struct platform_driver imx8ulp_clk_driver = {
> > .probe = imx8ulp_clk_probe,
> > .driver = {
> > .name = KBUILD_MODNAME,
> > + .suppress_bind_attrs = true,
> > .of_match_table = imx8ulp_clk_dt_ids,
> > },
> > };
> > --
> > 2.30.0
>