[alsa-devel] [Patch V4 05/10] ASoC: ipq806x: add LPASS header files

[Mark Brown]

On Thu, Feb 05, 2015 at 12:53:41PM -0800, Kenneth Westfield wrote:

> +#define __LPASS_H__
> +
> +#define LPASS_AHBIX_CLOCK_FREQUENCY		131072
> +
> +/* Both the CPU DAI driver and platform driver will access this data */
> +struct lpass_data {
> +
> +	/* clocks inside the low-power audio subsystem (LPASS) domain */
> +	struct clk *ahbix_clk;

This uses struct clk so it needs at least a forward declaration of it if
not just a straight inclusion of linux/clk.h.  There's several other
types and annotations that are referenced without an include to ensure
the compiler knows about them, the general idea is to avoid implicit
dependencies and thee surprising build breaks they cause.
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