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Commit f16177c2 authored by Eric Miao's avatar Eric Miao Committed by Russell King
Browse files

hwmon: add max1111_read_channel() for use by sharpsl_pm 



This is not generic, and is added here for backward compatibility.
It is made an individual commit here to make it easier for revert
once the sharpsl_pm gets generic enough.

Signed-off-by: default avatarEric Miao <eric.miao@marvell.com>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 55b951e7

arch/arm/mach-pxa/sharpsl_pm.c

+9 −0
Original line number Diff line number Diff line
@@ -132,8 +132,17 @@ int sharpsl_pm_pxa_read_max1111(int channel) 
	if (machine_is_tosa()) // Ugly, better move this function into another module

	    return 0;



#ifdef CONFIG_SENSORS_MAX1111

	extern int max1111_read_channel(int);



	/* max1111 accepts channels from 0-3, however,

	 * it is encoded from 0-7 here in the code.

	 */

	return max1111_read_channel(channel >> 1);

#else

	return corgi_ssp_max1111_get((channel << MAXCTRL_SEL_SH) | MAXCTRL_PD0 | MAXCTRL_PD1

			| MAXCTRL_SGL | MAXCTRL_UNI | MAXCTRL_STR);

#endif

}



void sharpsl_pm_pxa_init(void)

drivers/hwmon/max1111.c

+13 −0
Original line number Diff line number Diff line
@@ -66,6 +66,16 @@ static int max1111_read(struct device *dev, int channel) 
	return (v1 << 2) | (v2 >> 6);

}



#ifdef CONFIG_SHARPSL_PM

static struct max1111_data *the_max1111;



int max1111_read_channel(int channel)

{

	return max1111_read(&the_max1111->spi->dev, channel);

}

EXPORT_SYMBOL(max1111_read_channel);

#endif



/*

 * NOTE: SPI devices do not have a default 'name' attribute, which is

 * likely to be used by hwmon applications to distinguish between
@@ -181,6 +191,9 @@ static int __devinit max1111_probe(struct spi_device *spi) 
		goto err_remove;

	}



#ifdef CONFIG_SHARPSL_PM

	the_max1111 = data;

#endif

	return 0;



err_remove: