These settings are based on the Recommended Sleep Sequences for
the Zoom Platform pdf at:
http://omappedia.com/wiki/File:Recommended_Sleep_Sequences_Zoom.pdf
These settings assume most of the regulators are under control of
Linux, and cuts off VDD1 and VDD2 during off-idle as Linux cannot
do it.
For any board specific changes to these, let's patch them in as
changes to the generic data in the follow-up patches. This keeps
the board specific changes small.
Note that this does not consider the twl5030 errata 27. That
can be added later on after it has been tested.
Cc: Peter De Schrijver pdeschrij...@nvidia.com
Cc: Samuel Ortiz sa...@linux.intel.com
Cc: Lee Jones lee.jo...@linaro.org
Signed-off-by: Tony Lindgren t...@atomide.com
---
.../devicetree/bindings/mfd/twl4030-power.txt | 4 +
drivers/mfd/twl4030-power.c| 165 +
2 files changed, 169 insertions(+)
diff --git a/Documentation/devicetree/bindings/mfd/twl4030-power.txt
b/Documentation/devicetree/bindings/mfd/twl4030-power.txt
index b906116..bbd6603 100644
--- a/Documentation/devicetree/bindings/mfd/twl4030-power.txt
+++ b/Documentation/devicetree/bindings/mfd/twl4030-power.txt
@@ -8,10 +8,14 @@ Required properties:
- compatible : must be one of the following
ti,twl4030-power
ti,twl4030-power-reset
+ ti,twl4030-power-idle
The use of ti,twl4030-power-reset is recommended at least on
3530 that needs a special configuration for warm reset to work.
+When using ti,twl4030-power-idle, the TI recommended configuration
+for idle modes is loaded to the tlw4030 PMIC.
+
Optional properties:
- ti,use_poweroff: With this flag, the chip will initiates an ACTIVE-to-OFF or
SLEEP-to-OFF transition when the system poweroffs.
diff --git a/drivers/mfd/twl4030-power.c b/drivers/mfd/twl4030-power.c
index 1db0560..89a8528 100644
--- a/drivers/mfd/twl4030-power.c
+++ b/drivers/mfd/twl4030-power.c
@@ -595,11 +595,176 @@ static struct twl4030_power_data omap3_reset = {
.resource_config= omap3_rconfig,
};
+/* Recommended generic default idle configuration for off-idle */
+
+/* Broadcast message to put res to sleep */
+static struct twl4030_ins omap3_idle_sleep_on_seq[] = {
+ { MSG_BROADCAST(DEV_GRP_NULL, RES_GRP_ALL, RES_TYPE_ALL,
+ 0, RES_STATE_SLEEP), 2 },
+};
+
+static struct twl4030_script omap3_idle_sleep_on_script = {
+ .script = omap3_idle_sleep_on_seq,
+ .size = ARRAY_SIZE(omap3_idle_sleep_on_seq),
+ .flags = TWL4030_SLEEP_SCRIPT,
+};
+
+/* Broadcast message to put res to active */
+static struct twl4030_ins omap3_idle_wakeup_p12_seq[] = {
+ { MSG_BROADCAST(DEV_GRP_NULL, RES_GRP_ALL, RES_TYPE_ALL,
+ 0, RES_STATE_ACTIVE), 2 },
+ };
+
+static struct twl4030_script omap3_idle_wakeup_p12_script = {
+ .script = omap3_idle_wakeup_p12_seq,
+ .size = ARRAY_SIZE(omap3_idle_wakeup_p12_seq),
+ .flags = TWL4030_WAKEUP12_SCRIPT,
+};
+
+/* Broadcast message to put res to active */
+static struct twl4030_ins omap3_idle_wakeup_p3_seq[] = {
+ { MSG_SINGULAR(DEV_GRP_NULL, RES_CLKEN, RES_STATE_ACTIVE), 0x37 },
+ { MSG_BROADCAST(DEV_GRP_NULL, RES_GRP_ALL, RES_TYPE_ALL,
+ 0, RES_STATE_ACTIVE), 2 },
+};
+
+static struct twl4030_script omap3_idle_wakeup_p3_script = {
+ .script = omap3_idle_wakeup_p3_seq,
+ .size = ARRAY_SIZE(omap3_idle_wakeup_p3_seq),
+ .flags = TWL4030_WAKEUP3_SCRIPT,
+};
+
+static struct twl4030_script omap3_idle_wrst_script = {
+ .script = omap3_wrst_seq,
+ .size = ARRAY_SIZE(omap3_wrst_seq),
+ .flags = TWL4030_WRST_SCRIPT,
+};
+
+static struct twl4030_script *omap3_idle_scripts[] = {
+ omap3_idle_wakeup_p12_script,
+ omap3_idle_wakeup_p3_script,
+ omap3_idle_wrst_script,
+ omap3_idle_sleep_on_script,
+};
+
+/*
+ * Usable values for .remap_sleep and .remap_off
+ * Based on table 5.3.3 Resource Operating modes
+ */
+enum {
+ TWL_REMAP_OFF = 0,
+ TWL_REMAP_SLEEP = 8,
+ TWL_REMAP_ACTIVE = 9,
+};
+
+#define TWL_DEV_GRP_P123 (DEV_GRP_P1 | DEV_GRP_P2 | DEV_GRP_P3)
+
+/*
+ * Recommended configuration based on Recommended Sleep
+ * Sequences for the Zoom Platform:
+ * http://omappedia.com/wiki/File:Recommended_Sleep_Sequences_Zoom.pdf
+ */
+static struct twl4030_resconfig omap3_idle_rconfig[] = {
+ { .resource = RES_VAUX1, .devgroup = DEV_GRP_NULL,
+ .type = 0, .type2 = 0, .remap_off = TWL_REMAP_OFF,
+ .remap_sleep = TWL_REMAP_SLEEP, },
+ { .resource = RES_VAUX2, .devgroup = DEV_GRP_NULL,
+ .type = 0, .type2 = 0, .remap_off = TWL_REMAP_OFF,
+ .remap_sleep = TWL_REMAP_SLEEP, },
+ { .resource = RES_VAUX3, .devgroup = DEV_GRP_NULL,
+ .type = 0, .type2 = 0, .remap_off = TWL_REMAP_OFF,
+ .remap_sleep = TWL_REMAP_SLEEP, },
+ { .resource = RES_VAUX4, .devgroup =
