RE: [PATCH] SPI: Add driver for Cadence SPI controller

From: Harini Katakam
Date: Mon Mar 17 2014 - 10:01:46 EST


Hi Rob,

> -----Original Message-----
> From: Rob Herring [mailto:robherring2@xxxxxxxxx]
> Sent: Monday, March 17, 2014 6:17 PM
> To: Harini Katakam
> Cc: Rob Herring; Pawel Moll; Mark Rutland; Ian Campbell; Kumar Gala; Rob
> Landley; Mark Brown; Grant Likely; devicetree@xxxxxxxxxxxxxxx; linux-
> doc@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; linux-
> spi@xxxxxxxxxxxxxxx; Michal Simek
> Subject: Re: [PATCH] SPI: Add driver for Cadence SPI controller
>
> On Mon, Mar 17, 2014 at 7:05 AM, Harini Katakam <harinik@xxxxxxxxxx>
> wrote:
> > Add driver for Cadence SPI controller. This is used in Xilinx Zynq.
> >
> > Signed-off-by: Harini Katakam <harinik@xxxxxxxxxx>
> > ---
>
> > +- reg : Physical base address and size of SPI registers map.
> > +- interrupts : Property with a value describing the interrupt
> > + number.
> > +- interrupt-parent : Must be core interrupt controller
> > +- clock-names : List of input clock names - "ref_clk", "pclk"
> > + (See clock bindings for details).
> > +- clocks : Clock phandles (see clock bindings for details).
> > +- num-chip-select : Number of chip selects used.
>
> See Documentation/devicetree/bindings/spi/spi-bus.txt. Use "num-cs"
> here.

I'll check that.
> > +
> > + irq = platform_get_irq(pdev, 0);
> > + if (irq < 0) {
>
> I believe this returns NO_IRQ which could be 0.
>
> s/</<=/
>
> > + dev_dbg(&pdev->dev, "suspend succeeded\n");
>
> Not needed. The kernel already has suspend/resume tracing printks.

Will remove.

> > + dev_dbg(&pdev->dev, "resume succeeded\n");
>
> Not needed. The kernel already has suspend/resume tracing printks.

Will remove.

Regards,
Harini



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