* [PATCH] mtd: nand: pxa3xx: Disable "armada370-nand" compatible support
@ 2013-12-07 15:39 Ezequiel Garcia
2013-12-07 23:23 ` Jason Cooper
0 siblings, 1 reply; 6+ messages in thread
From: Ezequiel Garcia @ 2013-12-07 15:39 UTC (permalink / raw)
To: linux-arm-kernel
Currently the "armada370-nand" compatible support is not complete,
and it was mistake to add it. Instead of completely removing the compatible,
let's just disable it until all the needed infrastructure is in place.
Cc: Emilio L?pez <emilio@elopez.com.ar>
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
---
The compatible was added in:
commit c0f3b8643a6fa2461d70760ec49d21d2b031d611
Author: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Date: Sat Aug 10 16:34:52 2013 -0300
mtd: nand: pxa3xx: Introduce 'marvell,armada370-nand' compatible string
Which means the fix should be applied in v3.12 and v3.13.
On Emilio's suggestion, I've opted for the disabling, given all the required
support is already queued for v3.14. I'll push a patch removing the #if 0
on top of current l2-mtd.git.
Brian: Do you think this is OK to be pushed now for v3.13?
drivers/mtd/nand/pxa3xx_nand.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c
index 3d143fe..2c5066f 100644
--- a/drivers/mtd/nand/pxa3xx_nand.c
+++ b/drivers/mtd/nand/pxa3xx_nand.c
@@ -333,10 +333,16 @@ static struct of_device_id pxa3xx_nand_dt_ids[] = {
.compatible = "marvell,pxa3xx-nand",
.data = (void *)PXA3XX_NAND_VARIANT_PXA,
},
+/*
+ * Currently, the armada370 support is incomplete and can cause the
+ * system to crash. Disable it until all the infrastructure is in place.
+ */
+#if 0
{
.compatible = "marvell,armada370-nand",
.data = (void *)PXA3XX_NAND_VARIANT_ARMADA370,
},
+#endif
{}
};
MODULE_DEVICE_TABLE(of, pxa3xx_nand_dt_ids);
--
1.8.1.5
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH] mtd: nand: pxa3xx: Disable "armada370-nand" compatible support
2013-12-07 15:39 [PATCH] mtd: nand: pxa3xx: Disable "armada370-nand" compatible support Ezequiel Garcia
@ 2013-12-07 23:23 ` Jason Cooper
2013-12-08 1:35 ` Ezequiel Garcia
0 siblings, 1 reply; 6+ messages in thread
From: Jason Cooper @ 2013-12-07 23:23 UTC (permalink / raw)
To: linux-arm-kernel
Ezequiel,
I would prefer to call this a 'partial revert of c0f3b8643a6f ...'
On Sat, Dec 07, 2013 at 12:39:47PM -0300, Ezequiel Garcia wrote:
> Currently the "armada370-nand" compatible support is not complete,
> and it was mistake to add it. Instead of completely removing the compatible,
> let's just disable it until all the needed infrastructure is in place.
>
> Cc: Emilio L?pez <emilio@elopez.com.ar>
> Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
> ---
> The compatible was added in:
>
> commit c0f3b8643a6fa2461d70760ec49d21d2b031d611
> Author: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
> Date: Sat Aug 10 16:34:52 2013 -0300
>
> mtd: nand: pxa3xx: Introduce 'marvell,armada370-nand' compatible string
And add this as a oneline in the commit description.
>
> Which means the fix should be applied in v3.12 and v3.13.
>
> On Emilio's suggestion, I've opted for the disabling, given all the required
> support is already queued for v3.14. I'll push a patch removing the #if 0
> on top of current l2-mtd.git.
>
> Brian: Do you think this is OK to be pushed now for v3.13?
>
> drivers/mtd/nand/pxa3xx_nand.c | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c
> index 3d143fe..2c5066f 100644
> --- a/drivers/mtd/nand/pxa3xx_nand.c
> +++ b/drivers/mtd/nand/pxa3xx_nand.c
> @@ -333,10 +333,16 @@ static struct of_device_id pxa3xx_nand_dt_ids[] = {
> .compatible = "marvell,pxa3xx-nand",
> .data = (void *)PXA3XX_NAND_VARIANT_PXA,
> },
> +/*
> + * Currently, the armada370 support is incomplete and can cause the
> + * system to crash. Disable it until all the infrastructure is in place.
> + */
> +#if 0
> {
> .compatible = "marvell,armada370-nand",
> .data = (void *)PXA3XX_NAND_VARIANT_ARMADA370,
> },
> +#endif
I prefer to just remove the lines.
thx,
Jason.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH] mtd: nand: pxa3xx: Disable "armada370-nand" compatible support
2013-12-07 23:23 ` Jason Cooper
@ 2013-12-08 1:35 ` Ezequiel Garcia
2013-12-08 1:40 ` Jason Cooper
0 siblings, 1 reply; 6+ messages in thread
From: Ezequiel Garcia @ 2013-12-08 1:35 UTC (permalink / raw)
To: linux-arm-kernel
On Sat, Dec 07, 2013 at 06:23:15PM -0500, Jason Cooper wrote:
> > +/*
> > + * Currently, the armada370 support is incomplete and can cause the
> > + * system to crash. Disable it until all the infrastructure is in place.
> > + */
> > +#if 0
> > {
> > .compatible = "marvell,armada370-nand",
> > .data = (void *)PXA3XX_NAND_VARIANT_ARMADA370,
> > },
> > +#endif
>
> I prefer to just remove the lines.
>
I'm actually fine either way. Did both (disable and remove) but since all
the code is already sitting and waiting for v3.14 thought it might be cleaner
to just "disable" it.
Brian (given you're going to take the patch): what do you think?
If we agree to remove the lines, shall we also revert the binding
documentation, removing the compatible from there as well?
--
Ezequiel Garc?a, Free Electrons
Embedded Linux, Kernel and Android Engineering
http://free-electrons.com
^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH] mtd: nand: pxa3xx: Disable "armada370-nand" compatible support
2013-12-08 1:35 ` Ezequiel Garcia
@ 2013-12-08 1:40 ` Jason Cooper
2013-12-09 20:46 ` Brian Norris
0 siblings, 1 reply; 6+ messages in thread
From: Jason Cooper @ 2013-12-08 1:40 UTC (permalink / raw)
To: linux-arm-kernel
On Sat, Dec 07, 2013 at 10:35:26PM -0300, Ezequiel Garcia wrote:
> If we agree to remove the lines, shall we also revert the binding
> documentation, removing the compatible from there as well?
I think this is unnecessary. We're trying to prevent breaking
bisection. No one in their right mind should be developing (and
referring to docs) at a random commit. As long as the docs are correct,
leave them alone.
thx,
Jason.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH] mtd: nand: pxa3xx: Disable "armada370-nand" compatible support
2013-12-08 1:40 ` Jason Cooper
@ 2013-12-09 20:46 ` Brian Norris
2013-12-09 21:08 ` Ezequiel Garcia
0 siblings, 1 reply; 6+ messages in thread
From: Brian Norris @ 2013-12-09 20:46 UTC (permalink / raw)
To: linux-arm-kernel
Hi Ezequiel,
On Sat, Dec 07, 2013 at 08:40:49PM -0500, Jason Cooper wrote:
> On Sat, Dec 07, 2013 at 10:35:26PM -0300, Ezequiel Garcia wrote:
> > If we agree to remove the lines, shall we also revert the binding
> > documentation, removing the compatible from there as well?
>
> I think this is unnecessary. We're trying to prevent breaking
> bisection. No one in their right mind should be developing (and
> referring to docs) at a random commit. As long as the docs are correct,
> leave them alone.
I agree, we don't need to drop all the docs, just the lines with the
'compatible' property. And #if 0 is a no-go; let's just delete the
lines.
Yes, the docs will appear in 3.12 and 3.13 even though the driver
support won't be there until 3.14, but that's OK IMO.
Do you think this should go to 3.12.y stable? If so, please add the
appropriate Cc tag. BTW, you moved these lines around in 3.13 so far,
so the patch probably won't apply 100% clean.
Can you refresh this patch according to Jason's comments and resend?
Brian
^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH] mtd: nand: pxa3xx: Disable "armada370-nand" compatible support
2013-12-09 20:46 ` Brian Norris
@ 2013-12-09 21:08 ` Ezequiel Garcia
0 siblings, 0 replies; 6+ messages in thread
From: Ezequiel Garcia @ 2013-12-09 21:08 UTC (permalink / raw)
To: linux-arm-kernel
On Mon, Dec 09, 2013 at 12:46:07PM -0800, Brian Norris wrote:
> Hi Ezequiel,
>
> On Sat, Dec 07, 2013 at 08:40:49PM -0500, Jason Cooper wrote:
> > On Sat, Dec 07, 2013 at 10:35:26PM -0300, Ezequiel Garcia wrote:
> > > If we agree to remove the lines, shall we also revert the binding
> > > documentation, removing the compatible from there as well?
> >
> > I think this is unnecessary. We're trying to prevent breaking
> > bisection. No one in their right mind should be developing (and
> > referring to docs) at a random commit. As long as the docs are correct,
> > leave them alone.
>
> I agree, we don't need to drop all the docs, just the lines with the
> 'compatible' property. And #if 0 is a no-go; let's just delete the
> lines.
>
> Yes, the docs will appear in 3.12 and 3.13 even though the driver
> support won't be there until 3.14, but that's OK IMO.
>
> Do you think this should go to 3.12.y stable? If so, please add the
> appropriate Cc tag. BTW, you moved these lines around in 3.13 so far,
> so the patch probably won't apply 100% clean.
>
> Can you refresh this patch according to Jason's comments and resend?
>
Sure!
--
Ezequiel Garc?a, Free Electrons
Embedded Linux, Kernel and Android Engineering
http://free-electrons.com
^ permalink raw reply [flat|nested] 6+ messages in thread
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2013-12-07 15:39 [PATCH] mtd: nand: pxa3xx: Disable "armada370-nand" compatible support Ezequiel Garcia
2013-12-07 23:23 ` Jason Cooper
2013-12-08 1:35 ` Ezequiel Garcia
2013-12-08 1:40 ` Jason Cooper
2013-12-09 20:46 ` Brian Norris
2013-12-09 21:08 ` Ezequiel Garcia
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