Message-ID: <4E023C72.3030109@metafoo.de>
Date: Wed, 22 Jun 2011 21:03:14 +0200
From: Lars-Peter Clausen <lars@metafoo.de>
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To: Mark Brown <broonie@opensource.wolfsonmicro.com>
CC: linux-kernel@vger.kernel.org,
        Dimitris Papastamos <dp@opensource.wolfsonmicro.com>,
        Samuel Ortiz <sameo@linux.intel.com>, Liam Girdwood <lrg@ti.com>,
        Graeme Gregory <gg@slimlogic.co.uk>
Subject: Re: [PATCH 1/8] regmap: Add generic non-memory mapped register access
 API
References: <20110622184407.GC13847@sirena.org.uk> <1308768353-19372-1-git-send-email-broonie@opensource.wolfsonmicro.com>
In-Reply-To: <1308768353-19372-1-git-send-email-broonie@opensource.wolfsonmicro.com>
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On 06/22/2011 08:45 PM, Mark Brown wrote:
> [...]
> +
> +static int _regmap_raw_read(struct regmap *map, unsigned int reg, void *val,
> +			    unsigned int val_len)
> +{
> +	u8 *u8 = map->work_buf;
> +	int ret;
> +
> +	map->format.format_reg(map->work_buf, reg);
> +
> +	/*
> +	 * Some buses flag reads by setting the high bits in the
> +	 * register addresss; since it's always the high bits for all
> +	 * current formats we can do this here rather than in
> +	 * formatting.  This may break if we get interesting formats.
> +	 */
> +	if (map->bus->read_flag_bit)
> +		u8[0] |= 1 << map->bus->read_flag_bit;

Should be 1 << (map->bus->read_flag_bit - 1)
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