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 <pdeschrijver@xxxxxxxxxx> Cc: Samuel Ortiz <sameo@xxxxxxxxxxxxxxx> Cc: Lee Jones <lee.jones@xxxxxxxxxx> Signed-off-by: Tony Lindgren <tony@xxxxxxxxxxx> --- .../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 = DEV_GRP_NULL, + .type = 0, .type2 = 0, .remap_off = TWL_REMAP_OFF, + .remap_sleep = TWL_REMAP_SLEEP, }, + { .resource = RES_VMMC1, .devgroup = DEV_GRP_NULL, + .type = 0, .type2 = 0, .remap_off = TWL_REMAP_OFF, + .remap_sleep = TWL_REMAP_SLEEP, }, + { .resource = RES_VMMC2, .devgroup = DEV_GRP_NULL, + .type = 0, .type2 = 0, .remap_off = TWL_REMAP_OFF, + .remap_sleep = TWL_REMAP_SLEEP, }, + { .resource = RES_VPLL1, .devgroup = DEV_GRP_P1, + .type = 3, .type2 = 1, .remap_off = TWL_REMAP_OFF, + .remap_sleep = TWL_REMAP_OFF, }, + { .resource = RES_VPLL2, .devgroup = DEV_GRP_P1, + .type = 0, .type2 = 0, .remap_off = TWL_REMAP_OFF, + .remap_sleep = TWL_REMAP_SLEEP, }, + { .resource = RES_VSIM, .devgroup = DEV_GRP_NULL, + .type = 0, .type2 = 0, .remap_off = TWL_REMAP_OFF, + .remap_sleep = TWL_REMAP_SLEEP, }, + { .resource = RES_VDAC, .devgroup = DEV_GRP_NULL, + .type = 0, .type2 = 0, .remap_off = TWL_REMAP_OFF, + .remap_sleep = TWL_REMAP_SLEEP, }, + { .resource = RES_VINTANA1, .devgroup = TWL_DEV_GRP_P123, + .type = 1, .type2 = 2, .remap_off = TWL_REMAP_OFF, + .remap_sleep = TWL_REMAP_SLEEP, }, + { .resource = RES_VINTANA2, .devgroup = TWL_DEV_GRP_P123, + .type = 0, .type2 = 2, .remap_off = TWL_REMAP_OFF, + .remap_sleep = TWL_REMAP_SLEEP, }, + { .resource = RES_VINTDIG, .devgroup = TWL_DEV_GRP_P123, + .type = 1, .type2 = 2, .remap_off = TWL_REMAP_OFF, + .remap_sleep = TWL_REMAP_SLEEP, }, + { .resource = RES_VIO, .devgroup = TWL_DEV_GRP_P123, + .type = 2, .type2 = 2, .remap_off = TWL_REMAP_OFF, + .remap_sleep = TWL_REMAP_SLEEP, }, + { .resource = RES_VDD1, .devgroup = DEV_GRP_P1, + .type = 4, .type2 = 1, .remap_off = TWL_REMAP_OFF, + .remap_sleep = TWL_REMAP_OFF, }, + { .resource = RES_VDD2, .devgroup = DEV_GRP_P1, + .type = 3, .type2 = 1, .remap_off = TWL_REMAP_OFF, + .remap_sleep = TWL_REMAP_OFF, }, + { .resource = RES_VUSB_1V5, .devgroup = DEV_GRP_NULL, + .type = 0, .type2 = 0, .remap_off = TWL_REMAP_OFF, + .remap_sleep = TWL_REMAP_SLEEP, }, + { .resource = RES_VUSB_1V8, .devgroup = DEV_GRP_NULL, + .type = 0, .type2 = 0, .remap_off = TWL_REMAP_OFF, + .remap_sleep = TWL_REMAP_SLEEP, }, + { .resource = RES_VUSB_3V1, .devgroup = TWL_DEV_GRP_P123, + .type = 0, .type2 = 0, .remap_off = TWL_REMAP_OFF, + .remap_sleep = TWL_REMAP_SLEEP, }, + /* Resource #20 USB charge pump skipped */ + { .resource = RES_REGEN, .devgroup = TWL_DEV_GRP_P123, + .type = 2, .type2 = 1, .remap_off = TWL_REMAP_OFF, + .remap_sleep = TWL_REMAP_SLEEP, }, + { .resource = RES_NRES_PWRON, .devgroup = TWL_DEV_GRP_P123, + .type = 0, .type2 = 1, .remap_off = TWL_REMAP_OFF, + .remap_sleep = TWL_REMAP_SLEEP }, + { .resource = RES_CLKEN, .devgroup = TWL_DEV_GRP_P123, + .type = 3, .type2 = 2, .remap_off = TWL_REMAP_OFF, + .remap_sleep = TWL_REMAP_SLEEP, }, + { .resource = RES_SYSEN, .devgroup = TWL_DEV_GRP_P123, + .type = 6, .type2 = -1, .remap_off = TWL_REMAP_OFF, + .remap_sleep = TWL_REMAP_SLEEP, }, + { .resource = RES_HFCLKOUT, .devgroup = DEV_GRP_P3, + .type = 0, .type2 = 2, .remap_off = TWL_REMAP_OFF, + .remap_sleep = TWL_REMAP_SLEEP, }, + { .resource = RES_32KCLKOUT, .devgroup = TWL_DEV_GRP_P123, + .type = 0, .type2 = 0, .remap_off = TWL_REMAP_OFF, + .remap_sleep = TWL_REMAP_SLEEP, }, + { .resource = RES_RESET, .devgroup = TWL_DEV_GRP_P123, + .type = 6, .type2 = 0, .remap_off = TWL_REMAP_OFF, + .remap_sleep = TWL_REMAP_SLEEP, }, + { .resource = RES_MAIN_REF, .devgroup = TWL_DEV_GRP_P123, + .type = 0, .type2 = 0, .remap_off = TWL_REMAP_OFF, + .remap_sleep = TWL_REMAP_SLEEP, }, + { /* Terminator */ }, +}; + +static struct twl4030_power_data omap3_idle = { + .scripts = omap3_idle_scripts, + .num = ARRAY_SIZE(omap3_idle_scripts), + .resource_config = omap3_idle_rconfig, +}; + static struct of_device_id twl4030_power_of_match[] = { { .compatible = "ti,twl4030-power-reset", .data = &omap3_reset, }, + { + .compatible = "ti,twl4030-power-idle", + .data = &omap3_idle, + }, { }, }; MODULE_DEVICE_TABLE(of, twl4030_power_of_match); -- 1.8.1.1 -- 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
