[GIT PULL] DaVinci fixes for v4.20

[GIT PULL] DaVinci fixes for v4.20

[Sekhar Nori]

The following changes since commit 651022382c7f8da46cb4872a545ee1da6d097d2a:

  Linux 4.20-rc1 (2018-11-04 15:37:52 -0800)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci.git tags/davinci-fixes-for-v4.20

for you to fetch changes up to 27df7977099c2b8d32399cd1752f527c5a343dfa:

  ARM: davinci: dm644x: set the GPIO base to 0 (2018-11-27 13:43:27 +0530)

----------------------------------------------------------------
DaVinci: fix GPIO breakage after v4.19

This set of changes is needed to fix the broken GPIO support
for DaVinci boards in legacy mode after certain changes made to the
GPIO driver in 4.19, namely: commits 587f7a694f01 ("gpio: davinci: Use
dev name for label and automatic base selection") and eb3744a2dd01
("gpio: davinci: Do not assume continuous IRQ numbering").

----------------------------------------------------------------
Bartosz Golaszewski (12):
      ARM: davinci: da8xx: define gpio interrupts as separate resources
      ARM: davinci: dm365: define gpio interrupts as separate resources
      ARM: davinci: dm646x: define gpio interrupts as separate resources
      ARM: davinci: dm355: define gpio interrupts as separate resources
      ARM: davinci: dm644x: define gpio interrupts as separate resources
      gpio: davinci: restore a way to manually specify the GPIO base
      ARM: davinci: da850: set the GPIO base to 0
      ARM: davinci: dm365: set the GPIO base to 0
      ARM: davinci: dm646x: set the GPIO base to 0
      ARM: davinci: dm355: set the GPIO base to 0
      ARM: davinci: da830: set the GPIO base to 0
      ARM: davinci: dm644x: set the GPIO base to 0

 arch/arm/mach-davinci/da830.c              |  4 ++-
 arch/arm/mach-davinci/da850.c              |  4 ++-
 arch/arm/mach-davinci/devices-da8xx.c      | 40 ++++++++++++++++++++++++++++++
 arch/arm/mach-davinci/dm355.c              | 32 ++++++++++++++++++++++++
 arch/arm/mach-davinci/dm365.c              | 37 +++++++++++++++++++++++++++
 arch/arm/mach-davinci/dm644x.c             | 22 ++++++++++++++++
 arch/arm/mach-davinci/dm646x.c             | 12 +++++++++
 drivers/gpio/gpio-davinci.c                |  2 +-
 include/linux/platform_data/gpio-davinci.h |  2 ++
 9 files changed, 152 insertions(+), 3 deletions(-)

Re: [GIT PULL] DaVinci fixes for v4.20

[Olof Johansson]

On Tue, Nov 27, 2018 at 05:48:28PM +0530, Sekhar Nori wrote:
> The following changes since commit 651022382c7f8da46cb4872a545ee1da6d097d2a:
> 
>   Linux 4.20-rc1 (2018-11-04 15:37:52 -0800)
> 
> are available in the Git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci.git tags/davinci-fixes-for-v4.20
> 
> for you to fetch changes up to 27df7977099c2b8d32399cd1752f527c5a343dfa:
> 
>   ARM: davinci: dm644x: set the GPIO base to 0 (2018-11-27 13:43:27 +0530)
> 
> ----------------------------------------------------------------
> DaVinci: fix GPIO breakage after v4.19
> 
> This set of changes is needed to fix the broken GPIO support
> for DaVinci boards in legacy mode after certain changes made to the
> GPIO driver in 4.19, namely: commits 587f7a694f01 ("gpio: davinci: Use
> dev name for label and automatic base selection") and eb3744a2dd01
> ("gpio: davinci: Do not assume continuous IRQ numbering").

Hm. How long until we can remove the legacy boards and move them to DT? Is
anyone working on it?

Merged now.


-Olof

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Re: [GIT PULL] DaVinci fixes for v4.20

[Sekhar Nori]

Hi Olof,

On 01/12/18 1:25 AM, Olof Johansson wrote:
> On Tue, Nov 27, 2018 at 05:48:28PM +0530, Sekhar Nori wrote:
>> The following changes since commit 651022382c7f8da46cb4872a545ee1da6d097d2a:
>>
>>   Linux 4.20-rc1 (2018-11-04 15:37:52 -0800)
>>
>> are available in the Git repository at:
>>
>>   git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci.git tags/davinci-fixes-for-v4.20
>>
>> for you to fetch changes up to 27df7977099c2b8d32399cd1752f527c5a343dfa:
>>
>>   ARM: davinci: dm644x: set the GPIO base to 0 (2018-11-27 13:43:27 +0530)
>>
>> ----------------------------------------------------------------
>> DaVinci: fix GPIO breakage after v4.19
>>
>> This set of changes is needed to fix the broken GPIO support
>> for DaVinci boards in legacy mode after certain changes made to the
>> GPIO driver in 4.19, namely: commits 587f7a694f01 ("gpio: davinci: Use
>> dev name for label and automatic base selection") and eb3744a2dd01
>> ("gpio: davinci: Do not assume continuous IRQ numbering").
> 
> Hm. How long until we can remove the legacy boards and move them to DT? Is
> anyone working on it?

I think we are a bit far from that. The limited resources available to
work on DaVinci are being used to update frameworks. We moved to common
clock framework this year across all 6 supported SoCs. My plan for next
year is to move to sparse IRQ and get DaVinci included in
multi_v5_defconfig. Also move timer drivers to clocksource.

Even in cases where we do have device-tree support for the SoC (like
DA850), getting rid of board files completely involves writing some
additional drivers for board specific functionality. This I think is the
main bottleneck.

But I have not given up on getting there completely. The progress is
slow, though.

Thanks,
Sekhar

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