From 890463f0ff2bc5c62470dba181a5362bf7a5b22e Mon Sep 17 00:00:00 2001 From: Amit Kucheria Date: Mon, 19 Oct 2009 15:10:48 +0300 Subject: [PATCH] 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 Cc: linux-omap@vger.kernel.org Signed-off-by: Samuel Ortiz --- drivers/mfd/twl4030-power.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/drivers/mfd/twl4030-power.c b/drivers/mfd/twl4030-power.c index 82e3bcbc0097..2c38ac17ab64 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 + _DEV_GRP at address 'n+0' + _TYPE at address 'n+1' + _REMAP at address 'n+2' + _DEDICATED at address 'n+3' +*/ #define DEV_GRP_OFFSET 0 #define TYPE_OFFSET 1 /* Bit positions in the registers */ + +/* _DEV_GRP */ #define DEV_GRP_SHIFT 5 #define DEV_GRP_MASK (7 << DEV_GRP_SHIFT) + +/* _TYPE */ #define TYPE_SHIFT 0 #define TYPE_MASK (7 << TYPE_SHIFT) #define TYPE2_SHIFT 3 -- 2.20.1