diff options
| author | Amit Kucheria <amit.kucheria@verdurent.com> | 2009-10-19 15:10:48 +0300 |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2009-12-13 19:21:22 +0100 |
| commit | 890463f0ff2bc5c62470dba181a5362bf7a5b22e (patch) | |
| tree | f8a1bc1d9fe1aa15f27340e2bf1864b02d7ec6ee /drivers/mfd | |
| parent | e97d15469f2a8b97fd3475dc82f912509bc1a0fd (diff) | |
mfd: Add comments for the twl4030-power register and bit layout
Describe how the resource registers are laid out and the various bit-fields in
them.
Signed-off-by: Amit Kucheria <amit.kucheria@verdurent.com>
Cc: linux-omap@vger.kernel.org
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'drivers/mfd')
| -rw-r--r-- | drivers/mfd/twl4030-power.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/mfd/twl4030-power.c b/drivers/mfd/twl4030-power.c index 82e3bcbc009..2c38ac17ab6 100644 --- a/drivers/mfd/twl4030-power.c +++ b/drivers/mfd/twl4030-power.c @@ -67,14 +67,22 @@ static u8 twl4030_start_script_address = 0x2b; #define R_KEY_1 0xC0 #define R_KEY_2 0x0C -/* resource configuration registers */ - +/* resource configuration registers + <RESOURCE>_DEV_GRP at address 'n+0' + <RESOURCE>_TYPE at address 'n+1' + <RESOURCE>_REMAP at address 'n+2' + <RESOURCE>_DEDICATED at address 'n+3' +*/ #define DEV_GRP_OFFSET 0 #define TYPE_OFFSET 1 /* Bit positions in the registers */ + +/* <RESOURCE>_DEV_GRP */ #define DEV_GRP_SHIFT 5 #define DEV_GRP_MASK (7 << DEV_GRP_SHIFT) + +/* <RESOURCE>_TYPE */ #define TYPE_SHIFT 0 #define TYPE_MASK (7 << TYPE_SHIFT) #define TYPE2_SHIFT 3 |