Re: [PATCH RESEND v5 0/4] OMAP GPMC DT bindings

2012-11-29 Thread Daniel Mack
Hi Avinash,

On 29.11.2012 06:24, Philip, Avinash wrote:
 On Wed, Nov 28, 2012 at 22:28:55, Daniel Mack wrote:
 [Resending +devicetree-discuss, +Rob, +Grant]


 This is a series of patches to support GPMC peripherals on OMAP boards.

 Depends on Linus' master +
 omap-next (branch omap-for-v3.8/cleanup-headers-gpmc)
 
 Can you resend this series on top of linux_next?

The only branch these patches depend on is the
omap-for-v3.8/cleanup-headers-gpmc branch from omap_next. Are you
actually seeing any merge conflicts with my series? If so, which branch
are you referring to exactly?

 Some of the missing items I seen 
 1. Of_node not populated in  omap_nand_platform_data structure.

Hmm - gpmc_probe_nand_child() from 4/4 adds

  gpmc_nand_data-of_node = child;

Do I miss anything?

 2. Remove platform device creation from hwmod as GPMC DT is populating.
Currently GPMC device creaing from DT  HWMOD.

This is already addressed in cd00b0530 (ARM: OMAP2+: gpmc: Fix kernel
BUG for DT boot mode) by Vaibhav Hiremath, which I got via Afzal's USB
branch:


https://gitorious.org/x0148406-public/linux-kernel/commit/cd00b053082a5cabbb1a35e072b0c044e17e8ec2/diffs

As that fix is on the way, I dropped my version which did the same thing.

 Also can you address how this patch series depends on
 mtd: nand: OMAP: ELM error correction support for BCH ecc

I have your ELM patches on top of mine, and they apply cleanly. But I
believe it shouldn't be an issue if you base mine on top of yours.

Let me know if you want me to rebase anything again. The best solution
probably if I make sure the series applies cleanly to whatever tree it
will be merged trough - but I don't know which that would be eventually.


Thanks for the continuing feedback,
Daniel



 The only supported peripheral for now is NAND, but other types would be
 easy to add.

 Version 2 addresses details pointed out by Jon Hunter, Afzal Mohammed
 and Rob Herring:

  - add reg and ti,hwmod properties to Documentation
  - use generic of_mtd functions and the property names defined by them,
namely nand-bus-width and nand-ecc-mode
  - reduce the default register space size in the Documentation to 8K,
as found in the hwmod code
  - switch to a DT layout based on ranges and address translation.
Although this property is not currently looked at as long as the
handling code still uses the runtime calculation methods, we now
have these values in the bindings, eventually allowing us to
switch the implementation with less pain.

 Version 3 includes fixes pointed out by Jon Hunter:

  - better documentation of the 'ranges' property to describe the
fact that it's representing the CS lines
  - GPMC_CS_CONFIGx - GPMC_CONFIGx in comments
  - drop interrupt-parent from example bindings
  - add of_node_put() at the end of the child iteration

 Version 4 fixes compilation for !CONFIG_MTD_NAND and includes more
 details from Jon Hunter and Avinash, Philip:

  - Add num-cs and num-waitpins properties, which will eventually
be used to get rid of GPMC_CS_NUM
  - Better description of generic nand DT properties
  - Dropped patch 3/4 as an equivalent fix was already merged
  - Added ti,nand-ecc-use-elm property

 Version 5 with regards to Avinash, Philip and Peter Korsgaard:

  - Re-add accidentially forgotten
Documentation/devicetree/bindings/bus/ti-gpmc.txt
  - Rename software ecc mode to sw
  - Initialize gpmc_nand_data-is_elm_used to 'true' rather than 1
  - Drop ti,nand-ecc-use-elm binding in favor of a new ecc mode
named bch8-am335xrbl-compatible
  - Add two more patches for section mismatch fixups

 Daniel Mack (4):
   mtd: omap-nand: pass device_node in platform data
   ARM: OMAP: gpmc-nand: drop __init annotation
   ARM: OMAP: gpmc: enable hwecc for AM33xx SoCs
   ARM: OMAP: gpmc: add DT bindings for GPMC timings and NAND

  Documentation/devicetree/bindings/bus/ti-gpmc.txt  |  76 +
  .../devicetree/bindings/mtd/gpmc-nand.txt  |  81 +
  arch/arm/mach-omap2/gpmc-nand.c|  15 +-
  arch/arm/mach-omap2/gpmc.c | 181 
 -
  drivers/mtd/nand/omap2.c   |   4 +-
  5 files changed, 348 insertions(+), 9 deletions(-)
  create mode 100644 Documentation/devicetree/bindings/bus/ti-gpmc.txt
  create mode 100644 Documentation/devicetree/bindings/mtd/gpmc-nand.txt

 -- 
 1.7.11.7


 

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RE: [PATCH RESEND v5 0/4] OMAP GPMC DT bindings

2012-11-29 Thread Philip, Avinash
On Thu, Nov 29, 2012 at 17:28:04, Daniel Mack wrote:
 Hi Avinash,
 
 On 29.11.2012 06:24, Philip, Avinash wrote:
  On Wed, Nov 28, 2012 at 22:28:55, Daniel Mack wrote:
  [Resending +devicetree-discuss, +Rob, +Grant]
 
 
  This is a series of patches to support GPMC peripherals on OMAP boards.
 
  Depends on Linus' master +
  omap-next (branch omap-for-v3.8/cleanup-headers-gpmc)
  
  Can you resend this series on top of linux_next?
 
 The only branch these patches depend on is the
 omap-for-v3.8/cleanup-headers-gpmc branch from omap_next. Are you
 actually seeing any merge conflicts with my series? If so, which branch
 are you referring to exactly?
 
  Some of the missing items I seen 
  1. Of_node not populated in  omap_nand_platform_data structure.
 
 Hmm - gpmc_probe_nand_child() from 4/4 adds
 
   gpmc_nand_data-of_node = child;
 
 Do I miss anything?

I didn't found definition for of_node member in omap_nand_platform_data
structure. This also might be missing in liniux-next?

 
  2. Remove platform device creation from hwmod as GPMC DT is populating.
 Currently GPMC device creaing from DT  HWMOD.
 
 This is already addressed in cd00b0530 (ARM: OMAP2+: gpmc: Fix kernel
 BUG for DT boot mode) by Vaibhav Hiremath, which I got via Afzal's USB
 branch:

Purpose of VH's patch was to get beagle bone booting, but Jon sent another
patch that made beagle bone boot and it has reached mainline by v3.7-rc2,
hence the patch you are referring to is currently not going upstream. Still to
have GPMC DT work, we need that patch as other wise there would be two GPMC
devices. In earlier versions of your series, you had a similar patch, it is
required, can you please add it to your series as otherwise with your series
GPMC DT won't work.

 
 
 https://gitorious.org/x0148406-public/linux-kernel/commit/cd00b053082a5cabbb1a35e072b0c044e17e8ec2/diffs
 
 As that fix is on the way, I dropped my version which did the same thing.
 
  Also can you address how this patch series depends on
  mtd: nand: OMAP: ELM error correction support for BCH ecc
 
 I have your ELM patches on top of mine, and they apply cleanly. But I
 believe it shouldn't be an issue if you base mine on top of yours.

Yes they are independent. So go ahead and submit GPMC DT binding support.

 
 Let me know if you want me to rebase anything again. The best solution
 probably if I make sure the series applies cleanly to whatever tree it
 will be merged trough - but I don't know which that would be eventually.

My intention was just to tell you to test on linux-next not to resend (mistake).

Thanks
Avinash

 
 
 Thanks for the continuing feedback,
 Daniel
 
 
 
  The only supported peripheral for now is NAND, but other types would be
  easy to add.
 
  Version 2 addresses details pointed out by Jon Hunter, Afzal Mohammed
  and Rob Herring:
 
   - add reg and ti,hwmod properties to Documentation
   - use generic of_mtd functions and the property names defined by them,
 namely nand-bus-width and nand-ecc-mode
   - reduce the default register space size in the Documentation to 8K,
 as found in the hwmod code
   - switch to a DT layout based on ranges and address translation.
 Although this property is not currently looked at as long as the
 handling code still uses the runtime calculation methods, we now
 have these values in the bindings, eventually allowing us to
 switch the implementation with less pain.
 
  Version 3 includes fixes pointed out by Jon Hunter:
 
   - better documentation of the 'ranges' property to describe the
 fact that it's representing the CS lines
   - GPMC_CS_CONFIGx - GPMC_CONFIGx in comments
   - drop interrupt-parent from example bindings
   - add of_node_put() at the end of the child iteration
 
  Version 4 fixes compilation for !CONFIG_MTD_NAND and includes more
  details from Jon Hunter and Avinash, Philip:
 
   - Add num-cs and num-waitpins properties, which will eventually
 be used to get rid of GPMC_CS_NUM
   - Better description of generic nand DT properties
   - Dropped patch 3/4 as an equivalent fix was already merged
   - Added ti,nand-ecc-use-elm property
 
  Version 5 with regards to Avinash, Philip and Peter Korsgaard:
 
   - Re-add accidentially forgotten
 Documentation/devicetree/bindings/bus/ti-gpmc.txt
   - Rename software ecc mode to sw
   - Initialize gpmc_nand_data-is_elm_used to 'true' rather than 1
   - Drop ti,nand-ecc-use-elm binding in favor of a new ecc mode
 named bch8-am335xrbl-compatible
   - Add two more patches for section mismatch fixups
 
  Daniel Mack (4):
mtd: omap-nand: pass device_node in platform data
ARM: OMAP: gpmc-nand: drop __init annotation
ARM: OMAP: gpmc: enable hwecc for AM33xx SoCs
ARM: OMAP: gpmc: add DT bindings for GPMC timings and NAND
 
   Documentation/devicetree/bindings/bus/ti-gpmc.txt  |  76 +
   .../devicetree/bindings/mtd/gpmc-nand.txt  |  81 +
   arch/arm/mach-omap2/gpmc-nand.c|  15 

Re: [PATCH RESEND v5 0/4] OMAP GPMC DT bindings

2012-11-29 Thread Daniel Mack
On 29.11.2012 16:08, Philip, Avinash wrote:
 On Thu, Nov 29, 2012 at 17:28:04, Daniel Mack wrote:
 Hi Avinash,

 On 29.11.2012 06:24, Philip, Avinash wrote:
 On Wed, Nov 28, 2012 at 22:28:55, Daniel Mack wrote:
 [Resending +devicetree-discuss, +Rob, +Grant]


 This is a series of patches to support GPMC peripherals on OMAP boards.

 Depends on Linus' master +
 omap-next (branch omap-for-v3.8/cleanup-headers-gpmc)

 Can you resend this series on top of linux_next?

 The only branch these patches depend on is the
 omap-for-v3.8/cleanup-headers-gpmc branch from omap_next. Are you
 actually seeing any merge conflicts with my series? If so, which branch
 are you referring to exactly?

 Some of the missing items I seen 
 1. Of_node not populated in  omap_nand_platform_data structure.

 Hmm - gpmc_probe_nand_child() from 4/4 adds

   gpmc_nand_data-of_node = child;

 Do I miss anything?
 
 I didn't found definition for of_node member in omap_nand_platform_data
 structure. This also might be missing in liniux-next?

Ah, right. I got that entry from your patch (mtd: nand: omap2: Support
for hardware BCH error correction). But you're right, it should be part
of my series. Will add that when resending, but note that your ELM
series will then cause a (trivial) merge conflict.

 2. Remove platform device creation from hwmod as GPMC DT is populating.
Currently GPMC device creaing from DT  HWMOD.

 This is already addressed in cd00b0530 (ARM: OMAP2+: gpmc: Fix kernel
 BUG for DT boot mode) by Vaibhav Hiremath, which I got via Afzal's USB
 branch:
 
 Purpose of VH's patch was to get beagle bone booting, but Jon sent another
 patch that made beagle bone boot and it has reached mainline by v3.7-rc2,
 hence the patch you are referring to is currently not going upstream. Still to
 have GPMC DT work, we need that patch as other wise there would be two GPMC
 devices. In earlier versions of your series, you had a similar patch, it is
 required, can you please add it to your series as otherwise with your series
 GPMC DT won't work.

Ok, fine. Will do.


Daniel

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Re: [PATCH RESEND v5 0/4] OMAP GPMC DT bindings

2012-11-29 Thread Vaibhav Hiremath


On 11/29/2012 8:53 PM, Daniel Mack wrote:
 On 29.11.2012 16:08, Philip, Avinash wrote:
 On Thu, Nov 29, 2012 at 17:28:04, Daniel Mack wrote:
 Hi Avinash,

 On 29.11.2012 06:24, Philip, Avinash wrote:
 On Wed, Nov 28, 2012 at 22:28:55, Daniel Mack wrote:
 [Resending +devicetree-discuss, +Rob, +Grant]


 This is a series of patches to support GPMC peripherals on OMAP boards.

 Depends on Linus' master +
 omap-next (branch omap-for-v3.8/cleanup-headers-gpmc)

 Can you resend this series on top of linux_next?

 The only branch these patches depend on is the
 omap-for-v3.8/cleanup-headers-gpmc branch from omap_next. Are you
 actually seeing any merge conflicts with my series? If so, which branch
 are you referring to exactly?

 Some of the missing items I seen 
 1. Of_node not populated in  omap_nand_platform_data structure.

 Hmm - gpmc_probe_nand_child() from 4/4 adds

   gpmc_nand_data-of_node = child;

 Do I miss anything?

 I didn't found definition for of_node member in omap_nand_platform_data
 structure. This also might be missing in liniux-next?
 
 Ah, right. I got that entry from your patch (mtd: nand: omap2: Support
 for hardware BCH error correction). But you're right, it should be part
 of my series. Will add that when resending, but note that your ELM
 series will then cause a (trivial) merge conflict.
 
 2. Remove platform device creation from hwmod as GPMC DT is populating.
Currently GPMC device creaing from DT  HWMOD.

 This is already addressed in cd00b0530 (ARM: OMAP2+: gpmc: Fix kernel
 BUG for DT boot mode) by Vaibhav Hiremath, which I got via Afzal's USB
 branch:

 Purpose of VH's patch was to get beagle bone booting, but Jon sent another
 patch that made beagle bone boot and it has reached mainline by v3.7-rc2,
 hence the patch you are referring to is currently not going upstream. Still 
 to
 have GPMC DT work, we need that patch as other wise there would be two GPMC
 devices. In earlier versions of your series, you had a similar patch, it is
 required, can you please add it to your series as otherwise with your series
 GPMC DT won't work.
 
 Ok, fine. Will do.


Feel free to take that patch forward, merge into your series.

Thanks,
Vaibhav


 
 Daniel
 
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[PATCH RESEND v5 0/4] OMAP GPMC DT bindings

2012-11-28 Thread Daniel Mack
[Resending +devicetree-discuss, +Rob, +Grant]


This is a series of patches to support GPMC peripherals on OMAP boards.

Depends on Linus' master +
omap-next (branch omap-for-v3.8/cleanup-headers-gpmc)

The only supported peripheral for now is NAND, but other types would be
easy to add.

Version 2 addresses details pointed out by Jon Hunter, Afzal Mohammed
and Rob Herring:

 - add reg and ti,hwmod properties to Documentation
 - use generic of_mtd functions and the property names defined by them,
   namely nand-bus-width and nand-ecc-mode
 - reduce the default register space size in the Documentation to 8K,
   as found in the hwmod code
 - switch to a DT layout based on ranges and address translation.
   Although this property is not currently looked at as long as the
   handling code still uses the runtime calculation methods, we now
   have these values in the bindings, eventually allowing us to
   switch the implementation with less pain.

Version 3 includes fixes pointed out by Jon Hunter:

 - better documentation of the 'ranges' property to describe the
   fact that it's representing the CS lines
 - GPMC_CS_CONFIGx - GPMC_CONFIGx in comments
 - drop interrupt-parent from example bindings
 - add of_node_put() at the end of the child iteration

Version 4 fixes compilation for !CONFIG_MTD_NAND and includes more
details from Jon Hunter and Avinash, Philip:

 - Add num-cs and num-waitpins properties, which will eventually
   be used to get rid of GPMC_CS_NUM
 - Better description of generic nand DT properties
 - Dropped patch 3/4 as an equivalent fix was already merged
 - Added ti,nand-ecc-use-elm property

Version 5 with regards to Avinash, Philip and Peter Korsgaard:

 - Re-add accidentially forgotten
   Documentation/devicetree/bindings/bus/ti-gpmc.txt
 - Rename software ecc mode to sw
 - Initialize gpmc_nand_data-is_elm_used to 'true' rather than 1
 - Drop ti,nand-ecc-use-elm binding in favor of a new ecc mode
   named bch8-am335xrbl-compatible
 - Add two more patches for section mismatch fixups

Daniel Mack (4):
  mtd: omap-nand: pass device_node in platform data
  ARM: OMAP: gpmc-nand: drop __init annotation
  ARM: OMAP: gpmc: enable hwecc for AM33xx SoCs
  ARM: OMAP: gpmc: add DT bindings for GPMC timings and NAND

 Documentation/devicetree/bindings/bus/ti-gpmc.txt  |  76 +
 .../devicetree/bindings/mtd/gpmc-nand.txt  |  81 +
 arch/arm/mach-omap2/gpmc-nand.c|  15 +-
 arch/arm/mach-omap2/gpmc.c | 181 -
 drivers/mtd/nand/omap2.c   |   4 +-
 5 files changed, 348 insertions(+), 9 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/bus/ti-gpmc.txt
 create mode 100644 Documentation/devicetree/bindings/mtd/gpmc-nand.txt

-- 
1.7.11.7

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RE: [PATCH RESEND v5 0/4] OMAP GPMC DT bindings

2012-11-28 Thread Philip, Avinash
On Wed, Nov 28, 2012 at 22:28:55, Daniel Mack wrote:
 [Resending +devicetree-discuss, +Rob, +Grant]
 
 
 This is a series of patches to support GPMC peripherals on OMAP boards.
 
 Depends on Linus' master +
 omap-next (branch omap-for-v3.8/cleanup-headers-gpmc)

Can you resend this series on top of linux_next?
Some of the missing items I seen 
1. Of_node not populated in  omap_nand_platform_data structure.
2. Remove platform device creation from hwmod as GPMC DT is populating.
   Currently GPMC device creaing from DT  HWMOD.

Also can you address how this patch series depends on
mtd: nand: OMAP: ELM error correction support for BCH ecc

Thanks
Avinash

 
 The only supported peripheral for now is NAND, but other types would be
 easy to add.
 
 Version 2 addresses details pointed out by Jon Hunter, Afzal Mohammed
 and Rob Herring:
 
  - add reg and ti,hwmod properties to Documentation
  - use generic of_mtd functions and the property names defined by them,
namely nand-bus-width and nand-ecc-mode
  - reduce the default register space size in the Documentation to 8K,
as found in the hwmod code
  - switch to a DT layout based on ranges and address translation.
Although this property is not currently looked at as long as the
handling code still uses the runtime calculation methods, we now
have these values in the bindings, eventually allowing us to
switch the implementation with less pain.
 
 Version 3 includes fixes pointed out by Jon Hunter:
 
  - better documentation of the 'ranges' property to describe the
fact that it's representing the CS lines
  - GPMC_CS_CONFIGx - GPMC_CONFIGx in comments
  - drop interrupt-parent from example bindings
  - add of_node_put() at the end of the child iteration
 
 Version 4 fixes compilation for !CONFIG_MTD_NAND and includes more
 details from Jon Hunter and Avinash, Philip:
 
  - Add num-cs and num-waitpins properties, which will eventually
be used to get rid of GPMC_CS_NUM
  - Better description of generic nand DT properties
  - Dropped patch 3/4 as an equivalent fix was already merged
  - Added ti,nand-ecc-use-elm property
 
 Version 5 with regards to Avinash, Philip and Peter Korsgaard:
 
  - Re-add accidentially forgotten
Documentation/devicetree/bindings/bus/ti-gpmc.txt
  - Rename software ecc mode to sw
  - Initialize gpmc_nand_data-is_elm_used to 'true' rather than 1
  - Drop ti,nand-ecc-use-elm binding in favor of a new ecc mode
named bch8-am335xrbl-compatible
  - Add two more patches for section mismatch fixups
 
 Daniel Mack (4):
   mtd: omap-nand: pass device_node in platform data
   ARM: OMAP: gpmc-nand: drop __init annotation
   ARM: OMAP: gpmc: enable hwecc for AM33xx SoCs
   ARM: OMAP: gpmc: add DT bindings for GPMC timings and NAND
 
  Documentation/devicetree/bindings/bus/ti-gpmc.txt  |  76 +
  .../devicetree/bindings/mtd/gpmc-nand.txt  |  81 +
  arch/arm/mach-omap2/gpmc-nand.c|  15 +-
  arch/arm/mach-omap2/gpmc.c | 181 
 -
  drivers/mtd/nand/omap2.c   |   4 +-
  5 files changed, 348 insertions(+), 9 deletions(-)
  create mode 100644 Documentation/devicetree/bindings/bus/ti-gpmc.txt
  create mode 100644 Documentation/devicetree/bindings/mtd/gpmc-nand.txt
 
 -- 
 1.7.11.7
 
 

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