From fa16a5c13a2fc1433cfff38a083b4f8c5138d022 Mon Sep 17 00:00:00 2001 From: David Brownell Date: Sun, 8 Feb 2009 10:37:06 -0800 Subject: regulator: twl4030 regulators Support most of the LDO regulators in the twl4030 family chips. In the case of LDOs supporting MMC/SD, the voltage controls are used; but in most other cases, the regulator framework is only used to enable/disable a supplies, conserving power when a given voltage rail is not needed. The drivers/mfd/twl4030-core.c code already sets up the various regulators according to board-specific configuration, and knows that some chips don't provide the full set of voltage rails. The omitted regulators are intended to be under hardware control, such as during the hardware-mediated system powerup, powerdown, and suspend states. Unless/until software hooks are known to be safe, they won't be exported here. These regulators implement the new get_status() operation, but can't realistically implement get_mode(); the status output is effectively the result of a vote, with the relevant hardware inputs not exposed. Signed-off-by: David Brownell Acked-by: Mark Brown Signed-off-by: Liam Girdwood --- include/linux/i2c/twl4030.h | 47 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) (limited to 'include/linux/i2c') diff --git a/include/linux/i2c/twl4030.h b/include/linux/i2c/twl4030.h index 8137f66..0dc80ef 100644 --- a/include/linux/i2c/twl4030.h +++ b/include/linux/i2c/twl4030.h @@ -218,6 +218,53 @@ int twl4030_i2c_read(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes); /*----------------------------------------------------------------------*/ +/* Power bus message definitions */ + +#define DEV_GRP_NULL 0x0 +#define DEV_GRP_P1 0x1 +#define DEV_GRP_P2 0x2 +#define DEV_GRP_P3 0x4 + +#define RES_GRP_RES 0x0 +#define RES_GRP_PP 0x1 +#define RES_GRP_RC 0x2 +#define RES_GRP_PP_RC 0x3 +#define RES_GRP_PR 0x4 +#define RES_GRP_PP_PR 0x5 +#define RES_GRP_RC_PR 0x6 +#define RES_GRP_ALL 0x7 + +#define RES_TYPE2_R0 0x0 + +#define RES_TYPE_ALL 0x7 + +#define RES_STATE_WRST 0xF +#define RES_STATE_ACTIVE 0xE +#define RES_STATE_SLEEP 0x8 +#define RES_STATE_OFF 0x0 + +/* + * Power Bus Message Format ... these can be sent individually by Linux, + * but are usually part of downloaded scripts that are run when various + * power events are triggered. + * + * Broadcast Message (16 Bits): + * DEV_GRP[15:13] MT[12] RES_GRP[11:9] RES_TYPE2[8:7] RES_TYPE[6:4] + * RES_STATE[3:0] + * + * Singular Message (16 Bits): + * DEV_GRP[15:13] MT[12] RES_ID[11:4] RES_STATE[3:0] + */ + +#define MSG_BROADCAST(devgrp, grp, type, type2, state) \ + ( (devgrp) << 13 | 1 << 12 | (grp) << 9 | (type2) << 7 \ + | (type) << 4 | (state)) + +#define MSG_SINGULAR(devgrp, id, state) \ + ((devgrp) << 13 | 0 << 12 | (id) << 4 | (state)) + +/*----------------------------------------------------------------------*/ + struct twl4030_bci_platform_data { int *battery_tmp_tbl; unsigned int tblsize; -- cgit v1.1