linux-kernel - Re: [PATCH v4 0/9] i2c: riic: driver cleanup and improvements

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Message-ID: <CA+V-a8t2V1HP-T-3H4GdMENiaVy+FBXreLd6NxbeWZ-umupJEw@mail.gmail.com>
Date: Sat, 4 Jan 2025 08:15:56 +0000
From: "Lad, Prabhakar" <prabhakar.csengg@...il.com>
To: Andi Shyti <andi.shyti@...nel.org>
Cc: Chris Brandt <chris.brandt@...esas.com>, Geert Uytterhoeven <geert+renesas@...der.be>, 
	Wolfram Sang <wsa+renesas@...g-engineering.com>, 
	Andy Shevchenko <andy.shevchenko@...il.com>, Philipp Zabel <p.zabel@...gutronix.de>, 
	linux-renesas-soc@...r.kernel.org, linux-i2c@...r.kernel.org, 
	linux-kernel@...r.kernel.org, Biju Das <biju.das.jz@...renesas.com>, 
	Fabrizio Castro <fabrizio.castro.jz@...esas.com>, 
	Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Subject: Re: [PATCH v4 0/9] i2c: riic: driver cleanup and improvements

Hi Andi,

On Fri, Jan 3, 2025 at 11:54 PM Andi Shyti <andi.shyti@...nel.org> wrote:
>
> Hi,
>
> I will need for Andy's ack here because he had some comments.
>
I'll have to respin the series fixing patch 1/9.

Cheers,
Prabhakar

> Thanks,
> Andi
>
> On Fri, Jan 03, 2025 at 09:18:51AM +0000, Prabhakar wrote:
> > From: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
> >
> > Simplify and modernize the RIIC I2C driver with the following changes:
> >
> > 1. Refactor error handling in `riic_i2c_probe()` and `riic_init_hw()` by
> >    replacing `dev_err()` with `dev_err_probe()` and using a local `dev`
> >    pointer.
> > 2. Use `BIT()` and `GENMASK()` macros for consistent and clear bit
> >    handling.
> > 3. Manage reset lines with `devm_reset_control_get_exclusive()` to
> >    simplify resource handling.
> > 4. Mark `riic_irqs` as `const` and simplify clock tick calculations with
> >    predefined macros.
> > 5. Add `riic_bus_barrier()` to check bus availability and improve
> >    reliability.
> >
> > v3->v4
> > -> Created new patch 1/9
> > -> Dropped RB/TB tags from patch 8/9
> > -> Dropped `unsigned long` cast and updated the format specifier while
> >    printing bus frequency
> > -> Included required headers
> > -> Propogated the error
> >
> > Cheers,
> > Prabhakar
> >
> > Lad Prabhakar (9):
> >   i2c: riic: Introduce a separate variable for IRQ
> >   i2c: riic: Use dev_err_probe in probe and riic_init_hw functions
> >   i2c: riic: Use local `dev` pointer in `dev_err_probe()`
> >   i2c: riic: Use BIT macro consistently
> >   i2c: riic: Use GENMASK() macro for bitmask definitions
> >   i2c: riic: Make use of devres helper to request deasserted reset line
> >   i2c: riic: Mark riic_irqs array as const
> >   i2c: riic: Use predefined macro and simplify clock tick calculation
> >   i2c: riic: Add `riic_bus_barrier()` to check bus availability
> >
> >  drivers/i2c/busses/i2c-riic.c | 137 ++++++++++++++++++----------------
> >  1 file changed, 72 insertions(+), 65 deletions(-)
> >
> > --
> > 2.43.0
> >