2019-01-15 08:29:20

by Masahiro Yamada

[permalink] [raw]
Subject: [PATCH] mtd: rawnand: denali_dt: remove single anonymous clock support

Commit 6f1fe97bec34 ("mtd: rawnand: denali_dt: add more clocks based
on IP datasheet") introduced a more correct binding that requires
three named clocks.

Now that all upstream DT files migrated over to it, remove the single
anonymous clock support.

Signed-off-by: Masahiro Yamada <[email protected]>
---

drivers/mtd/nand/raw/denali_dt.c | 27 ++++-----------------------
1 file changed, 4 insertions(+), 23 deletions(-)

diff --git a/drivers/mtd/nand/raw/denali_dt.c b/drivers/mtd/nand/raw/denali_dt.c
index 7c6a8a4..0b5ae24 100644
--- a/drivers/mtd/nand/raw/denali_dt.c
+++ b/drivers/mtd/nand/raw/denali_dt.c
@@ -109,25 +109,17 @@ static int denali_dt_probe(struct platform_device *pdev)
if (IS_ERR(denali->host))
return PTR_ERR(denali->host);

- /*
- * A single anonymous clock is supported for the backward compatibility.
- * New platforms should support all the named clocks.
- */
dt->clk = devm_clk_get(dev, "nand");
if (IS_ERR(dt->clk))
- dt->clk = devm_clk_get(dev, NULL);
- if (IS_ERR(dt->clk)) {
- dev_err(dev, "no clk available\n");
return PTR_ERR(dt->clk);
- }

dt->clk_x = devm_clk_get(dev, "nand_x");
if (IS_ERR(dt->clk_x))
- dt->clk_x = NULL;
+ return PTR_ERR(dt->clk_x);

dt->clk_ecc = devm_clk_get(dev, "ecc");
if (IS_ERR(dt->clk_ecc))
- dt->clk_ecc = NULL;
+ return PTR_ERR(dt->clk_ecc);

ret = clk_prepare_enable(dt->clk);
if (ret)
@@ -141,19 +133,8 @@ static int denali_dt_probe(struct platform_device *pdev)
if (ret)
goto out_disable_clk_x;

- if (dt->clk_x) {
- denali->clk_rate = clk_get_rate(dt->clk);
- denali->clk_x_rate = clk_get_rate(dt->clk_x);
- } else {
- /*
- * Hardcode the clock rates for the backward compatibility.
- * This works for both SOCFPGA and UniPhier.
- */
- dev_notice(dev,
- "necessary clock is missing. default clock rates are used.\n");
- denali->clk_rate = 50000000;
- denali->clk_x_rate = 200000000;
- }
+ denali->clk_rate = clk_get_rate(dt->clk);
+ denali->clk_x_rate = clk_get_rate(dt->clk_x);

ret = denali_init(denali);
if (ret)
--
2.7.4



2019-01-15 08:33:42

by Miquel Raynal

[permalink] [raw]
Subject: Re: [PATCH] mtd: rawnand: denali_dt: remove single anonymous clock support

Hi Masahiro,

Masahiro Yamada <[email protected]> wrote on Tue, 15 Jan
2019 17:11:34 +0900:

> Commit 6f1fe97bec34 ("mtd: rawnand: denali_dt: add more clocks based
> on IP datasheet") introduced a more correct binding that requires
> three named clocks.
>
> Now that all upstream DT files migrated over to it, remove the single
> anonymous clock support.

I would love to do that but I think this is against the "DT backward
compatibility rule". Anyway, IIRC it is accepted that this kind of
rule might be broken if decided per the arch-maintainer (in this
case, you I suppose). So if this is really what you want, I'll queue
it.


Thanks,
Miquèl

2019-01-16 16:08:55

by Masahiro Yamada

[permalink] [raw]
Subject: Re: [PATCH] mtd: rawnand: denali_dt: remove single anonymous clock support

(+CC Dinh Nguyen)

On Tue, Jan 15, 2019 at 5:22 PM Miquel Raynal <[email protected]> wrote:
>
> Hi Masahiro,
>
> Masahiro Yamada <[email protected]> wrote on Tue, 15 Jan
> 2019 17:11:34 +0900:
>
> > Commit 6f1fe97bec34 ("mtd: rawnand: denali_dt: add more clocks based
> > on IP datasheet") introduced a more correct binding that requires
> > three named clocks.
> >
> > Now that all upstream DT files migrated over to it, remove the single
> > anonymous clock support.
>
> I would love to do that but I think this is against the "DT backward
> compatibility rule".

Yeah, I know this rule, but we break DT binding from time to time.



> Anyway, IIRC it is accepted that this kind of
> rule might be broken if decided per the arch-maintainer (in this
> case, you I suppose). So if this is really what you want, I'll queue
> it.

My platform is fine, but this driver is used by SOCFPGA boards as well.

I CCed the SOCFPGA maintainer, Dinh Nguyen.



--
Best Regards
Masahiro Yamada

2019-01-21 09:14:42

by Miquel Raynal

[permalink] [raw]
Subject: Re: [PATCH] mtd: rawnand: denali_dt: remove single anonymous clock support

Hi Dinh,

Masahiro Yamada <[email protected]> wrote on Wed, 16 Jan
2019 10:27:11 +0900:

> (+CC Dinh Nguyen)
>
> On Tue, Jan 15, 2019 at 5:22 PM Miquel Raynal <[email protected]> wrote:
> >
> > Hi Masahiro,
> >
> > Masahiro Yamada <[email protected]> wrote on Tue, 15 Jan
> > 2019 17:11:34 +0900:
> >
> > > Commit 6f1fe97bec34 ("mtd: rawnand: denali_dt: add more clocks based
> > > on IP datasheet") introduced a more correct binding that requires
> > > three named clocks.
> > >
> > > Now that all upstream DT files migrated over to it, remove the single
> > > anonymous clock support.
> >
> > I would love to do that but I think this is against the "DT backward
> > compatibility rule".
>
> Yeah, I know this rule, but we break DT binding from time to time.
>
>
>
> > Anyway, IIRC it is accepted that this kind of
> > rule might be broken if decided per the arch-maintainer (in this
> > case, you I suppose). So if this is really what you want, I'll queue
> > it.
>
> My platform is fine, but this driver is used by SOCFPGA boards as well.
>
> I CCed the SOCFPGA maintainer, Dinh Nguyen.
>

Can you please share your thoughts on this topic please?


Thanks,
Miquèl

2019-01-28 10:20:50

by Miquel Raynal

[permalink] [raw]
Subject: Re: [PATCH] mtd: rawnand: denali_dt: remove single anonymous clock support

Hi Dinh,

Masahiro Yamada <[email protected]> wrote on Wed, 16 Jan
2019 10:27:11 +0900:

> (+CC Dinh Nguyen)
>
> On Tue, Jan 15, 2019 at 5:22 PM Miquel Raynal <[email protected]> wrote:
> >
> > Hi Masahiro,
> >
> > Masahiro Yamada <[email protected]> wrote on Tue, 15 Jan
> > 2019 17:11:34 +0900:
> >
> > > Commit 6f1fe97bec34 ("mtd: rawnand: denali_dt: add more clocks based
> > > on IP datasheet") introduced a more correct binding that requires
> > > three named clocks.
> > >
> > > Now that all upstream DT files migrated over to it, remove the single
> > > anonymous clock support.
> >
> > I would love to do that but I think this is against the "DT backward
> > compatibility rule".
>
> Yeah, I know this rule, but we break DT binding from time to time.
>
>
>
> > Anyway, IIRC it is accepted that this kind of
> > rule might be broken if decided per the arch-maintainer (in this
> > case, you I suppose). So if this is really what you want, I'll queue
> > it.
>
> My platform is fine, but this driver is used by SOCFPGA boards as well.
>
> I CCed the SOCFPGA maintainer, Dinh Nguyen.
>

Gentle ping on this topic.


Thanks,
Miquèl

2019-01-30 16:22:01

by Dinh Nguyen

[permalink] [raw]
Subject: Re: [PATCH] mtd: rawnand: denali_dt: remove single anonymous clock support

Hi Miquel,

Let me review this today.

Thanks,
Dinh

On 1/28/19 4:20 AM, Miquel Raynal wrote:
> Hi Dinh,
>
> Masahiro Yamada <[email protected]> wrote on Wed, 16 Jan
> 2019 10:27:11 +0900:
>
>> (+CC Dinh Nguyen)
>>
>> On Tue, Jan 15, 2019 at 5:22 PM Miquel Raynal <[email protected]> wrote:
>>>
>>> Hi Masahiro,
>>>
>>> Masahiro Yamada <[email protected]> wrote on Tue, 15 Jan
>>> 2019 17:11:34 +0900:
>>>
>>>> Commit 6f1fe97bec34 ("mtd: rawnand: denali_dt: add more clocks based
>>>> on IP datasheet") introduced a more correct binding that requires
>>>> three named clocks.
>>>>
>>>> Now that all upstream DT files migrated over to it, remove the single
>>>> anonymous clock support.
>>>
>>> I would love to do that but I think this is against the "DT backward
>>> compatibility rule".
>>
>> Yeah, I know this rule, but we break DT binding from time to time.
>>
>>
>>
>>> Anyway, IIRC it is accepted that this kind of
>>> rule might be broken if decided per the arch-maintainer (in this
>>> case, you I suppose). So if this is really what you want, I'll queue
>>> it.
>>
>> My platform is fine, but this driver is used by SOCFPGA boards as well.
>>
>> I CCed the SOCFPGA maintainer, Dinh Nguyen.
>>
>
> Gentle ping on this topic.
>
>
> Thanks,
> Miquèl
>

2019-01-31 17:41:05

by Dinh Nguyen

[permalink] [raw]
Subject: Re: [PATCH] mtd: rawnand: denali_dt: remove single anonymous clock support



On 1/28/19 4:20 AM, Miquel Raynal wrote:
> Hi Dinh,
>
> Masahiro Yamada <[email protected]> wrote on Wed, 16 Jan
> 2019 10:27:11 +0900:
>
>> (+CC Dinh Nguyen)
>>
>> On Tue, Jan 15, 2019 at 5:22 PM Miquel Raynal <[email protected]> wrote:
>>>
>>> Hi Masahiro,
>>>
>>> Masahiro Yamada <[email protected]> wrote on Tue, 15 Jan
>>> 2019 17:11:34 +0900:
>>>
>>>> Commit 6f1fe97bec34 ("mtd: rawnand: denali_dt: add more clocks based
>>>> on IP datasheet") introduced a more correct binding that requires
>>>> three named clocks.
>>>>
>>>> Now that all upstream DT files migrated over to it, remove the single
>>>> anonymous clock support.
>>>
>>> I would love to do that but I think this is against the "DT backward
>>> compatibility rule".
>>
>> Yeah, I know this rule, but we break DT binding from time to time.
>>
>>
>>
>>> Anyway, IIRC it is accepted that this kind of
>>> rule might be broken if decided per the arch-maintainer (in this
>>> case, you I suppose). So if this is really what you want, I'll queue
>>> it.
>>
>> My platform is fine, but this driver is used by SOCFPGA boards as well.
>>
>> I CCed the SOCFPGA maintainer, Dinh Nguyen.
>>
>
> Gentle ping on this topic.
>

This patch looks fine to be. Feel free to add:

Tested-by: Dinh Nguyen <[email protected]>

Dinh

2019-01-31 17:43:55

by Boris Brezillon

[permalink] [raw]
Subject: Re: [PATCH] mtd: rawnand: denali_dt: remove single anonymous clock support

Hi Dinh,

On Thu, 31 Jan 2019 11:24:16 -0600
Dinh Nguyen <[email protected]> wrote:

> On 1/28/19 4:20 AM, Miquel Raynal wrote:
> > Hi Dinh,
> >
> > Masahiro Yamada <[email protected]> wrote on Wed, 16 Jan
> > 2019 10:27:11 +0900:
> >
> >> (+CC Dinh Nguyen)
> >>
> >> On Tue, Jan 15, 2019 at 5:22 PM Miquel Raynal <[email protected]> wrote:
> >>>
> >>> Hi Masahiro,
> >>>
> >>> Masahiro Yamada <[email protected]> wrote on Tue, 15 Jan
> >>> 2019 17:11:34 +0900:
> >>>
> >>>> Commit 6f1fe97bec34 ("mtd: rawnand: denali_dt: add more clocks based
> >>>> on IP datasheet") introduced a more correct binding that requires
> >>>> three named clocks.
> >>>>
> >>>> Now that all upstream DT files migrated over to it, remove the single
> >>>> anonymous clock support.
> >>>
> >>> I would love to do that but I think this is against the "DT backward
> >>> compatibility rule".
> >>
> >> Yeah, I know this rule, but we break DT binding from time to time.
> >>
> >>
> >>
> >>> Anyway, IIRC it is accepted that this kind of
> >>> rule might be broken if decided per the arch-maintainer (in this
> >>> case, you I suppose). So if this is really what you want, I'll queue
> >>> it.
> >>
> >> My platform is fine, but this driver is used by SOCFPGA boards as well.
> >>
> >> I CCed the SOCFPGA maintainer, Dinh Nguyen.
> >>
> >
> > Gentle ping on this topic.
> >
>
> This patch looks fine to be. Feel free to add:
>
> Tested-by: Dinh Nguyen <[email protected]>

I think Miquel is waiting for an Acked-by to confirm that you're okay
breaking backward compat with old DT.

Regards,

Boris

2019-02-05 13:38:51

by Miquel Raynal

[permalink] [raw]
Subject: Re: [PATCH] mtd: rawnand: denali_dt: remove single anonymous clock support

Hi Dinh,

Boris Brezillon <[email protected]> wrote on Thu, 31 Jan 2019
18:26:44 +0100:

> Hi Dinh,
>
> On Thu, 31 Jan 2019 11:24:16 -0600
> Dinh Nguyen <[email protected]> wrote:
>
> > On 1/28/19 4:20 AM, Miquel Raynal wrote:
> > > Hi Dinh,
> > >
> > > Masahiro Yamada <[email protected]> wrote on Wed, 16 Jan
> > > 2019 10:27:11 +0900:
> > >
> > >> (+CC Dinh Nguyen)
> > >>
> > >> On Tue, Jan 15, 2019 at 5:22 PM Miquel Raynal <[email protected]> wrote:
> > >>>
> > >>> Hi Masahiro,
> > >>>
> > >>> Masahiro Yamada <[email protected]> wrote on Tue, 15 Jan
> > >>> 2019 17:11:34 +0900:
> > >>>
> > >>>> Commit 6f1fe97bec34 ("mtd: rawnand: denali_dt: add more clocks based
> > >>>> on IP datasheet") introduced a more correct binding that requires
> > >>>> three named clocks.
> > >>>>
> > >>>> Now that all upstream DT files migrated over to it, remove the single
> > >>>> anonymous clock support.
> > >>>
> > >>> I would love to do that but I think this is against the "DT backward
> > >>> compatibility rule".
> > >>
> > >> Yeah, I know this rule, but we break DT binding from time to time.
> > >>
> > >>
> > >>
> > >>> Anyway, IIRC it is accepted that this kind of
> > >>> rule might be broken if decided per the arch-maintainer (in this
> > >>> case, you I suppose). So if this is really what you want, I'll queue
> > >>> it.
> > >>
> > >> My platform is fine, but this driver is used by SOCFPGA boards as well.
> > >>
> > >> I CCed the SOCFPGA maintainer, Dinh Nguyen.
> > >>
> > >
> > > Gentle ping on this topic.
> > >
> >
> > This patch looks fine to be. Feel free to add:
> >
> > Tested-by: Dinh Nguyen <[email protected]>
>
> I think Miquel is waiting for an Acked-by to confirm that you're okay
> breaking backward compat with old DT.

Yes, I am waiting for your Acked-by.


Thanks,
Miquèl

2019-02-07 18:18:44

by Dinh Nguyen

[permalink] [raw]
Subject: Re: [PATCH] mtd: rawnand: denali_dt: remove single anonymous clock support



On 2/5/19 7:18 AM, Miquel Raynal wrote:
> Hi Dinh,
>
> Boris Brezillon <[email protected]> wrote on Thu, 31 Jan 2019
> 18:26:44 +0100:
>
>> Hi Dinh,
>>
>> On Thu, 31 Jan 2019 11:24:16 -0600
>> Dinh Nguyen <[email protected]> wrote:
>>
>>> On 1/28/19 4:20 AM, Miquel Raynal wrote:
>>>> Hi Dinh,
>>>>
>>>> Masahiro Yamada <[email protected]> wrote on Wed, 16 Jan
>>>> 2019 10:27:11 +0900:
>>>>
>>>>> (+CC Dinh Nguyen)
>>>>>
>>>>> On Tue, Jan 15, 2019 at 5:22 PM Miquel Raynal <[email protected]> wrote:
>>>>>>
>>>>>> Hi Masahiro,
>>>>>>
>>>>>> Masahiro Yamada <[email protected]> wrote on Tue, 15 Jan
>>>>>> 2019 17:11:34 +0900:
>>>>>>
>>>>>>> Commit 6f1fe97bec34 ("mtd: rawnand: denali_dt: add more clocks based
>>>>>>> on IP datasheet") introduced a more correct binding that requires
>>>>>>> three named clocks.
>>>>>>>
>>>>>>> Now that all upstream DT files migrated over to it, remove the single
>>>>>>> anonymous clock support.
>>>>>>
>>>>>> I would love to do that but I think this is against the "DT backward
>>>>>> compatibility rule".
>>>>>
>>>>> Yeah, I know this rule, but we break DT binding from time to time.
>>>>>
>>>>>
>>>>>
>>>>>> Anyway, IIRC it is accepted that this kind of
>>>>>> rule might be broken if decided per the arch-maintainer (in this
>>>>>> case, you I suppose). So if this is really what you want, I'll queue
>>>>>> it.
>>>>>
>>>>> My platform is fine, but this driver is used by SOCFPGA boards as well.
>>>>>
>>>>> I CCed the SOCFPGA maintainer, Dinh Nguyen.
>>>>>
>>>>
>>>> Gentle ping on this topic.
>>>>
>>>
>>> This patch looks fine to be. Feel free to add:
>>>
>>> Tested-by: Dinh Nguyen <[email protected]>
>>
>> I think Miquel is waiting for an Acked-by to confirm that you're okay
>> breaking backward compat with old DT.
>
> Yes, I am waiting for your Acked-by.
>
>

Acked-by: Dinh Nguyen <[email protected]>

Dinh

2019-02-07 22:22:25

by Miquel Raynal

[permalink] [raw]
Subject: Re: [PATCH] mtd: rawnand: denali_dt: remove single anonymous clock support

Hi Dinh,

Dinh Nguyen <[email protected]> wrote on Thu, 7 Feb 2019 12:17:50
-0600:

> On 2/5/19 7:18 AM, Miquel Raynal wrote:
> > Hi Dinh,
> >
> > Boris Brezillon <[email protected]> wrote on Thu, 31 Jan 2019
> > 18:26:44 +0100:
> >
> >> Hi Dinh,
> >>
> >> On Thu, 31 Jan 2019 11:24:16 -0600
> >> Dinh Nguyen <[email protected]> wrote:
> >>
> >>> On 1/28/19 4:20 AM, Miquel Raynal wrote:
> >>>> Hi Dinh,
> >>>>
> >>>> Masahiro Yamada <[email protected]> wrote on Wed, 16 Jan
> >>>> 2019 10:27:11 +0900:
> >>>>
> >>>>> (+CC Dinh Nguyen)
> >>>>>
> >>>>> On Tue, Jan 15, 2019 at 5:22 PM Miquel Raynal <[email protected]> wrote:
> >>>>>>
> >>>>>> Hi Masahiro,
> >>>>>>
> >>>>>> Masahiro Yamada <[email protected]> wrote on Tue, 15 Jan
> >>>>>> 2019 17:11:34 +0900:
> >>>>>>
> >>>>>>> Commit 6f1fe97bec34 ("mtd: rawnand: denali_dt: add more clocks based
> >>>>>>> on IP datasheet") introduced a more correct binding that requires
> >>>>>>> three named clocks.
> >>>>>>>
> >>>>>>> Now that all upstream DT files migrated over to it, remove the single
> >>>>>>> anonymous clock support.
> >>>>>>
> >>>>>> I would love to do that but I think this is against the "DT backward
> >>>>>> compatibility rule".
> >>>>>
> >>>>> Yeah, I know this rule, but we break DT binding from time to time.
> >>>>>
> >>>>>
> >>>>>
> >>>>>> Anyway, IIRC it is accepted that this kind of
> >>>>>> rule might be broken if decided per the arch-maintainer (in this
> >>>>>> case, you I suppose). So if this is really what you want, I'll queue
> >>>>>> it.
> >>>>>
> >>>>> My platform is fine, but this driver is used by SOCFPGA boards as well.
> >>>>>
> >>>>> I CCed the SOCFPGA maintainer, Dinh Nguyen.
> >>>>>
> >>>>
> >>>> Gentle ping on this topic.
> >>>>
> >>>
> >>> This patch looks fine to be. Feel free to add:
> >>>
> >>> Tested-by: Dinh Nguyen <[email protected]>
> >>
> >> I think Miquel is waiting for an Acked-by to confirm that you're okay
> >> breaking backward compat with old DT.
> >
> > Yes, I am waiting for your Acked-by.
> >
> >
>
> Acked-by: Dinh Nguyen <[email protected]>
>
> Dinh

Applied to nand/next.


Thanks,
Miquèl