linux-kernel - Re: [PATCH 2/9] Input: pixcir_i2c

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Message-ID: <20131218140945.GB28504@core.coreip.homeip.net>
Date:	Wed, 18 Dec 2013 06:09:45 -0800
From:	Dmitry Torokhov <dmitry.torokhov@...il.com>
To:	Roger Quadros <rogerq@...com>
Cc:	rydberg@...omail.se, jcbian@...cir.com.cn,
	linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org
Subject: Re: [PATCH 2/9] Input: pixcir_i2c_ts: Add register definitions

On Wed, Dec 18, 2013 at 02:51:13PM +0530, Roger Quadros wrote:
> Add power and interrupt register definitions.
> 

Please fold into the next patch that uses these definitions.

> Signed-off-by: Roger Quadros <rogerq@...com>
> Acked-by: Mugunthan V N <mugunthanvnm@...com>
> ---
>  include/linux/input/pixcir_ts.h | 42 +++++++++++++++++++++++++++++++++++++++++
>  1 file changed, 42 insertions(+)
> 
> diff --git a/include/linux/input/pixcir_ts.h b/include/linux/input/pixcir_ts.h
> index b34ff7e..f17c192 100644
> --- a/include/linux/input/pixcir_ts.h
> +++ b/include/linux/input/pixcir_ts.h
> @@ -1,6 +1,48 @@
>  #ifndef	_PIXCIR_I2C_TS_H
>  #define	_PIXCIR_I2C_TS_H
>  
> +/*
> + * Register map
> + */
> +#define PIXCIR_REG_POWER_MODE	51
> +#define PIXCIR_REG_INT_MODE	52
> +
> +/*
> + * Power modes:
> + * active: max scan speed
> + * idle: lower scan speed with automatic transition to active on touch
> + * halt: datasheet says sleep but this is more like halt as the chip
> + *       clocks are cut and it can only be brought out of this mode
> + *	 using the RESET pin.
> + */
> +enum pixcir_power_mode {
> +	PIXCIR_POWER_ACTIVE,
> +	PIXCIR_POWER_IDLE,
> +	PIXCIR_POWER_HALT,
> +};
> +
> +#define PIXCIR_POWER_MODE_MASK	0x03
> +#define PIXCIR_POWER_ALLOW_IDLE (1UL << 2)
> +
> +/*
> + * Interrupt modes:
> + * periodical: interrupt is asserted periodicaly
> + * diff coordinates: interrupt is asserted when coordinates change
> + * level on touch: interrupt level asserted during touch
> + * pulse on touch: interrupt pulse asserted druing touch
> + *
> + */
> +enum pixcir_int_mode {
> +	PIXCIR_INT_PERIODICAL,
> +	PIXCIR_INT_DIFF_COORD,
> +	PIXCIR_INT_LEVEL_TOUCH,
> +	PIXCIR_INT_PULSE_TOUCH,
> +};
> +
> +#define PIXCIR_INT_MODE_MASK	0x03
> +#define PIXCIR_INT_ENABLE	(1UL << 3)
> +#define PIXCIR_INT_POL_HIGH	(1UL << 2)
> +
>  struct pixcir_ts_platform_data {
>  	int (*attb_read_val)(void);
>  	unsigned int x_size;	/* X axis resolution */
> -- 
> 1.8.3.2
> 

-- 
Dmitry
--
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