linux-kernel - Re: [PATCH V2 04/15] coresight: tmc: introducing new header file

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Date:	Thu, 14 Apr 2016 18:33:39 +0100
From:	Suzuki K Poulose <Suzuki.Poulose@....com>
To:	Mathieu Poirier <mathieu.poirier@...aro.org>,
	linux-arm-kernel@...ts.infradead.org
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH V2 04/15] coresight: tmc: introducing new header file

On 12/04/16 18:54, Mathieu Poirier wrote:
> The amount of #define, enumeration and structure definition
> is big enough to justify moving them to a new header file.
>


> +/* TMC_STS - 0x00C */
> +#define TMC_STS_TRIGGERED	BIT(1)

...

> +#define TMC_AXICTL_WR_BURST_LEN 0xF00

Nit: The value above signifies, 16 data transfers per burst.
So ideally it would be good to rename it to reflect that. say,

TMC_AXICTL_WR_BURST_16



> +/* TMC_FFCR - 0x304 */
> +#define TMC_FFCR_EN_FMT		BIT(0)
> +#define TMC_FFCR_EN_TI		BIT(1)
> +#define TMC_FFCR_FON_FLIN	BIT(4)
> +#define TMC_FFCR_FON_TRIG_EVT	BIT(5)
> +#define TMC_FFCR_FLUSHMAN	BIT(6)
> +#define TMC_FFCR_TRIGON_TRIGIN	BIT(8)
> +#define TMC_FFCR_STOP_ON_FLUSH	BIT(12)
> +
> +#define TMC_STS_TMCREADY_BIT	2

> +#define TMC_FFCR_FLUSHMAN_BIT	6

nit: It would be nice to group the STS_ and FFCR_ bits together.
Also I see that the defintion for

TMC_STS_FULL is added in a completely unrelated patch (TMC-ETF AUX SPACE
patch ?). It would be good to add it either here or in a different patch.

Otherwise looks good.

Reviewed-by: Suzuki K Poulose <suzuki.poulose@....com>

Thanks
Suzuki