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[0/2] i2c: mediatek: remove mt6577 support

Message ID 20220120185853.24266-1-arzamas-16@mail.ee
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Series i2c: mediatek: remove mt6577 support | expand

Message

Boris Lysov Jan. 20, 2022, 6:58 p.m. UTC
This small patch series removes mt6577 support from the i2c-mt65xx driver and
devicectree binding documentation.

The existing i2c-mt65xx driver relies on DMA since it was first introduced.
mt6577 does not support DMA [1] for I2C and SoC's Generic DMA engine cannot
be used for this purpose, too, which makes this particular driver incompatible
with mt6577 and other similar SoCs with same I2C IP.

[1] see references in
https://lists.infradead.org/pipermail/linux-mediatek/2021-October/030333.html

Boris Lysov (2):
  dt-bindings: i2c: i2c-mt65xx: remove compatibility with mt6577
  i2c: mediatek: remove compatibility with mt6577

 .../devicetree/bindings/i2c/i2c-mt65xx.txt    |  9 +++---
 drivers/i2c/busses/i2c-mt65xx.c               | 28 +++++++++----------
 2 files changed, 18 insertions(+), 19 deletions(-)

Comments

Wolfram Sang March 1, 2022, 3:19 p.m. UTC | #1
On Thu, Jan 20, 2022 at 09:58:51PM +0300, Boris Lysov wrote:
> This small patch series removes mt6577 support from the i2c-mt65xx driver and
> devicectree binding documentation.
> 
> The existing i2c-mt65xx driver relies on DMA since it was first introduced.
> mt6577 does not support DMA [1] for I2C and SoC's Generic DMA engine cannot
> be used for this purpose, too, which makes this particular driver incompatible
> with mt6577 and other similar SoCs with same I2C IP.

Qii Wang, what do you think about this series?

> 
> [1] see references in
> https://lists.infradead.org/pipermail/linux-mediatek/2021-October/030333.html
> 
> Boris Lysov (2):
>   dt-bindings: i2c: i2c-mt65xx: remove compatibility with mt6577
>   i2c: mediatek: remove compatibility with mt6577
> 
>  .../devicetree/bindings/i2c/i2c-mt65xx.txt    |  9 +++---
>  drivers/i2c/busses/i2c-mt65xx.c               | 28 +++++++++----------
>  2 files changed, 18 insertions(+), 19 deletions(-)
> 
> -- 
> 2.20.1
>
Boris Lysov April 16, 2022, 3:10 p.m. UTC | #2
On Fri, 18 Mar 2022 12:09:42 +0100
Wolfram Sang <wsa@kernel.org> wrote:

> On Tue, Mar 01, 2022 at 04:19:56PM +0100, Wolfram Sang wrote:
> > On Thu, Jan 20, 2022 at 09:58:51PM +0300, Boris Lysov wrote:
> > > This small patch series removes mt6577 support from the i2c-mt65xx driver
> > > and devicectree binding documentation.
> > > 
> > > The existing i2c-mt65xx driver relies on DMA since it was first
> > > introduced. mt6577 does not support DMA [1] for I2C and SoC's Generic DMA
> > > engine cannot be used for this purpose, too, which makes this particular
> > > driver incompatible with mt6577 and other similar SoCs with same I2C IP.
> > 
> > Qii Wang, what do you think about this series?
> 
> This series makes sense to me. If you do not disagree, Qii Wang, I will
> apply it soon. All the best, everyone.

Hello! I'm kindly pinging you on this series. Has it been applied?