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 <dbrownell@users.sourceforge.net>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
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 @@
/*----------------------------------------------------------------------*/
+/* 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;