Device tree based boot does not currently support DVFS voltage scaling,
as the VC/VP mapping is broken. This patch adds support to provide
platform data in the device tree boot case also, basically to pass the
function pointers to the vc/vp core for voltage changes.
Signed-off-by: Tero Kristo <t-kristo@xxxxxx>
Cc: Mark Brown <broonie@xxxxxxxxxx>
Cc: Liam Girdwood <lgirdwood@xxxxxxxxx>
---
arch/arm/mach-omap2/pdata-quirks.c | 8 ++--
arch/arm/mach-omap2/twl-common.c | 88 ++++++++++++++++++++++++++++++++----
arch/arm/mach-omap2/twl-common.h | 2 +
3 files changed, 84 insertions(+), 14 deletions(-)
diff --git a/arch/arm/mach-omap2/pdata-quirks.c b/arch/arm/mach-omap2/pdata-quirks.c
index 90c88d4..03e4a86 100644
--- a/arch/arm/mach-omap2/pdata-quirks.c
+++ b/arch/arm/mach-omap2/pdata-quirks.c
@@ -311,10 +311,10 @@ void omap_auxdata_legacy_init(struct device *dev)
if (dev->platform_data)
return;
- if (strcmp("twl4030-gpio", dev_name(dev)))
- return;
-
- dev->platform_data = &twl_gpio_auxdata;
+ if (!strcmp("twl4030-gpio", dev_name(dev)))
+ dev->platform_data = &twl_gpio_auxdata;
+ else
+ dev->platform_data = omap_twl_match_regulator(dev);
}
/*
diff --git a/arch/arm/mach-omap2/twl-common.c b/arch/arm/mach-omap2/twl-common.c
index b0d54da..50f6d33 100644
--- a/arch/arm/mach-omap2/twl-common.c
+++ b/arch/arm/mach-omap2/twl-common.c
@@ -210,17 +210,37 @@ static struct twl_regulator_driver_data omap3_vdd2_drvdata = {
.set_voltage = twl_set_voltage,
};
+struct pmic_drvdata_config {
+ const char *voltdm;
+ struct twl_regulator_driver_data *data;
+};
+
+static struct pmic_drvdata_config twl4030_vdd1 = {
+ .voltdm = "mpu_iva",
+ .data = &omap3_vdd1_drvdata,
+};
+
+static struct pmic_drvdata_config twl4030_vdd2 = {
+ .voltdm = "core",
+ .data = &omap3_vdd2_drvdata,
+};
+
+struct twl_regulator_driver_data
+*omap_pmic_get_drvdata(struct pmic_drvdata_config *conf)
+{
+ conf->data->data = voltdm_lookup(conf->voltdm);
+ return conf->data;
+}
+
void __init omap3_pmic_get_config(struct twl4030_platform_data *pmic_data,
u32 pdata_flags, u32 regulators_flags)
{
if (!pmic_data->vdd1) {
- omap3_vdd1.driver_data = &omap3_vdd1_drvdata;
- omap3_vdd1_drvdata.data = voltdm_lookup("mpu_iva");
+ omap3_vdd1.driver_data = omap_pmic_get_drvdata(&twl4030_vdd1);
pmic_data->vdd1 = &omap3_vdd1;
}
if (!pmic_data->vdd2) {
- omap3_vdd2.driver_data = &omap3_vdd2_drvdata;
- omap3_vdd2_drvdata.data = voltdm_lookup("core");
+ omap3_vdd2.driver_data = omap_pmic_get_drvdata(&twl4030_vdd2);
pmic_data->vdd2 = &omap3_vdd2;
}
@@ -440,6 +460,21 @@ static struct twl_regulator_driver_data omap4_vdd3_drvdata = {
.set_voltage = twl_set_voltage,
};
+static struct pmic_drvdata_config twl6030_vdd1 = {
+ .voltdm = "mpu",
+ .data = &omap4_vdd1_drvdata,
+};
+
+static struct pmic_drvdata_config twl6030_vdd2 = {
+ .voltdm = "iva",
+ .data = &omap4_vdd2_drvdata,
+};
+
+static struct pmic_drvdata_config twl6030_vdd3 = {
+ .voltdm = "core",
+ .data = &omap4_vdd3_drvdata,
+};
+
static struct regulator_consumer_supply omap4_v1v8_supply[] = {
REGULATOR_SUPPLY("vio", "1-004b"),
};
@@ -475,24 +510,57 @@ static struct regulator_init_data omap4_v2v1_idata = {
.consumer_supplies = omap4_v2v1_supply,
};
+static struct of_device_id twl_regulator_ids[] = {
+ { .compatible = "ti,twl4030-vdd1", .data = &twl4030_vdd1, },
+ { .compatible = "ti,twl4030-vdd2", .data = &twl4030_vdd2, },
+ { .compatible = "ti,twl6030-vdd1", .data = &twl6030_vdd1, },
+ { .compatible = "ti,twl6030-vdd2", .data = &twl6030_vdd2, },
+ { .compatible = "ti,twl6030-vdd3", .data = &twl6030_vdd3, },
+ {}
+};
+
+/**
+ * omap_twl_match_regulator - match regulator against a device
+ * @dev: device to check for regulator match
+ *
+ * Checks if the device provided is a supported regulator device. If yes,
+ * will initialize the corresponding platform data structure for it and
+ * return it for the caller to use. Returns NULL if not supported,
+ * a pointer to the regulator platform data struct otherwise.
+ */
+void *omap_twl_match_regulator(struct device *dev)
+{
+ const struct of_device_id *match;
+ struct pmic_drvdata_config *conf;
+
+ if (!dev->of_node)
+ return NULL;
+
+ match = of_match_node(twl_regulator_ids, dev->of_node);
+
+ if (!match)
+ return NULL;
+
+ conf = (struct pmic_drvdata_config *)match->data;
+
+ return omap_pmic_get_drvdata(conf);
+}
+
void __init omap4_pmic_get_config(struct twl4030_platform_data *pmic_data,
u32 pdata_flags, u32 regulators_flags)
{
if (!pmic_data->vdd1) {
- omap4_vdd1.driver_data = &omap4_vdd1_drvdata;
- omap4_vdd1_drvdata.data = voltdm_lookup("mpu");
+ omap4_vdd1.driver_data = omap_pmic_get_drvdata(&twl6030_vdd1);
pmic_data->vdd1 = &omap4_vdd1;
}
if (!pmic_data->vdd2) {
- omap4_vdd2.driver_data = &omap4_vdd2_drvdata;
- omap4_vdd2_drvdata.data = voltdm_lookup("iva");
+ omap4_vdd2.driver_data = omap_pmic_get_drvdata(&twl6030_vdd2);
pmic_data->vdd2 = &omap4_vdd2;
}
if (!pmic_data->vdd3) {
- omap4_vdd3.driver_data = &omap4_vdd3_drvdata;
- omap4_vdd3_drvdata.data = voltdm_lookup("core");
+ omap4_vdd3.driver_data = omap_pmic_get_drvdata(&twl6030_vdd3);
pmic_data->vdd3 = &omap4_vdd3;
}
diff --git a/arch/arm/mach-omap2/twl-common.h b/arch/arm/mach-omap2/twl-common.h
index 24b65d0..b392ade 100644
--- a/arch/arm/mach-omap2/twl-common.h
+++ b/arch/arm/mach-omap2/twl-common.h
@@ -55,6 +55,8 @@ void omap4_pmic_init(const char *pmic_type,
struct twl4030_platform_data *pmic_data,
struct i2c_board_info *devices, int nr_devices);
+void *omap_twl_match_regulator(struct device *dev);
+
void omap3_pmic_get_config(struct twl4030_platform_data *pmic_data,
u32 pdata_flags, u32 regulators_flags);
--
1.7.9.5
--
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