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Subject[PATCH 2/5] mfd: twl4030-power: Add comments for the register and bit layout
Date
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: sameo@linux.intel.com
Cc: linux-omap@vger.kernel.org
---
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 82e3bcb..2c38ac1 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
--
1.6.3.3


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