linux-kernel - Re: [PATCH v2 4/4] spi: sun6i: Support Allwinner H3 SPI controller

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Message-ID: <20161102134011.aotjogti4vl4ebdt@lukather>
Date:   Wed, 2 Nov 2016 14:40:11 +0100
From:   Maxime Ripard <maxime.ripard@...e-electrons.com>
To:     Milo Kim <woogyom.kim@...il.com>
Cc:     Chen-Yu Tsai <wens@...e.org>, Mark Brown <broonie@...nel.org>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-spi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 4/4] spi: sun6i: Support Allwinner H3 SPI controller

On Fri, Oct 28, 2016 at 03:54:12PM +0900, Milo Kim wrote:
> H3 has two SPI controllers. The size of the buffer is 64 * 8.
> (8 bit transfer by 64 entry FIFO)
> A31 has four controllers. The size of the buffer is 128 * 8.
> (8 bit transfer by 128 entry FIFO)
> 
> Register maps are sharable, so sun6i SPI driver is reusable with
> device configuration.
> 
> Use the variable, 'fifo_depth' instead of fixed value to support both SPI
> controllers.
> 
> Cc: Mark Brown <broonie@...nel.org>
> Cc: Maxime Ripard <maxime.ripard@...e-electrons.com>
> Cc: Chen-Yu Tsai <wens@...e.org>
> Signed-off-by: Milo Kim <woogyom.kim@...il.com>

Acked-by: Maxime Ripard <maxime.ripard@...e-electrons.com>

Thanks!
Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com

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