[PATCHv3 02/11] mfd: Add comments for the twl4030-power register and bit layout

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



From: Amit Kucheria <amit.kucheria@xxxxxxxxxxxxx>

Describe how the resource registers are laid out and the various bit-fields in
them.

Signed-off-by: Amit Kucheria <amit.kucheria@xxxxxxxxxxxxx>
Cc: linux-omap@xxxxxxxxxxxxxxx
Signed-off-by: Samuel Ortiz <sameo@xxxxxxxxxxxxxxx>
---
 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 8f82e22..2bec947 100644
--- a/drivers/mfd/twl4030-power.c
+++ b/drivers/mfd/twl4030-power.c
@@ -72,14 +72,22 @@ 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
-- 
1.7.0.4.361.g8b5fe.dirty

--
To unsubscribe from this list: send the line "unsubscribe linux-omap" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html

[Index of Archives]     [Linux Arm (vger)]     [ARM Kernel]     [ARM MSM]     [Linux Tegra]     [Linux WPAN Networking]     [Linux Wireless Networking]     [Maemo Users]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite Trails]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux