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mfd: Refactor WM8350 chip identification

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Since the WM8350 driver was originally written the semantics for the
identification registers of the chip have been clarified, allowing
us to do an exact match on all the fields. This avoids mistakenly
running on unsupported hardware.

Also change to using the datasheet names more consistently for
legibility and fix a printk() that should be dev_err().

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
This commit is contained in:
Mark Brown
2008-11-24 20:22:58 +01:00
committed by Samuel Ortiz
parent d756f4a444
commit b797a55519
2 changed files with 56 additions and 30 deletions
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6
include/linux/mfd/wm8350/core.h
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@@ -29,6 +29,7 @@
*/
#define WM8350_RESET_ID 0x00
#define WM8350_ID 0x01
#define WM8350_REVISION 0x02
#define WM8350_SYSTEM_CONTROL_1 0x03
#define WM8350_SYSTEM_CONTROL_2 0x04
#define WM8350_SYSTEM_HIBERNATE 0x05
@@ -79,6 +80,11 @@
#define WM8350_CONF_STS_MASK 0x0C00
#define WM8350_CUST_ID_MASK 0x00FF
/*
* R2 (0x02) - Revision
*/
#define WM8350_MASK_REV_MASK 0x00FF
/*
* R3 (0x03) - System Control 1
*/