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Message-ID: <1371549794-7406-1-git-send-email-j-keerthy@ti.com>
Date: Tue, 18 Jun 2013 15:33:14 +0530
From: J Keerthy <j-keerthy@...com>
To: <linux-omap@...r.kernel.org>
CC: <broonie@...nel.org>, <j-keerthy@...com>, <ldewangan@...dia.com>,
<sameo@...ux.intel.com>, <grant.likely@...retlab.ca>,
<swarren@...dia.com>, <linux-kernel@...r.kernel.org>,
<linux-doc@...r.kernel.org>, <gg@...mlogic.co.uk>
Subject: [PATCH v2 2/4] MFD: Palmas: Add SMPS10_BOOST feature
The SMPS10 regulator is not presesnt in all the variants
of the PALMAS PMIC family. Hence adding a feature to distingush
between them.
Signed-off-by: J Keerthy <j-keerthy@...com>
---
drivers/mfd/palmas.c | 28 +++++++++++++++++++++-------
drivers/regulator/palmas-regulator.c | 3 +++
include/linux/mfd/palmas.h | 14 ++++++++++++++
3 files changed, 38 insertions(+), 7 deletions(-)
diff --git a/drivers/mfd/palmas.c b/drivers/mfd/palmas.c
index 69c4e62..f9630b1 100644
--- a/drivers/mfd/palmas.c
+++ b/drivers/mfd/palmas.c
@@ -231,6 +231,16 @@ static void palmas_dt_to_pdata(struct i2c_client *i2c,
palmas_set_pdata_irq_flag(i2c, pdata);
}
+static unsigned int palmas_features = PALMAS_PMIC_FEATURE_SMPS10_BOOST;
+
+static const struct of_device_id of_palmas_match_tbl[] = {
+ {
+ .compatible = "ti,palmas",
+ .data = &palmas_features,
+ },
+ { },
+};
+
static int palmas_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
@@ -239,8 +249,9 @@ static int palmas_i2c_probe(struct i2c_client *i2c,
struct device_node *regnode = NULL;
struct device_node *node = i2c->dev.of_node;
int ret = 0, i;
- unsigned int reg, addr;
+ unsigned int reg, addr, *features;
int slave;
+ const struct of_device_id *match;
pdata = dev_get_platdata(&i2c->dev);
@@ -262,7 +273,15 @@ static int palmas_i2c_probe(struct i2c_client *i2c,
i2c_set_clientdata(i2c, palmas);
palmas->dev = &i2c->dev;
- palmas->id = id->driver_data;
+
+ match = of_match_device(of_match_ptr(of_palmas_match_tbl), &i2c->dev);
+
+ if (match) {
+ features = (unsigned int *)match->data;
+ palmas->features = *features;
+ } else {
+ return -ENODATA;
+ }
for (i = 0; i < PALMAS_NUM_CLIENTS; i++) {
if (i == 0)
@@ -437,11 +456,6 @@ static const struct i2c_device_id palmas_i2c_id[] = {
};
MODULE_DEVICE_TABLE(i2c, palmas_i2c_id);
-static struct of_device_id of_palmas_match_tbl[] = {
- { .compatible = "ti,palmas", },
- { /* end */ }
-};
-
static struct i2c_driver palmas_i2c_driver = {
.driver = {
.name = "palmas",
diff --git a/drivers/regulator/palmas-regulator.c b/drivers/regulator/palmas-regulator.c
index 3ae44ac..1ae1e83 100644
--- a/drivers/regulator/palmas-regulator.c
+++ b/drivers/regulator/palmas-regulator.c
@@ -838,6 +838,9 @@ static int palmas_regulators_probe(struct platform_device *pdev)
continue;
ramp_delay_support = true;
break;
+ case PALMAS_REG_SMPS10:
+ if (!PALMAS_PMIC_HAS(palmas, SMPS10_BOOST))
+ continue;
}
if ((id == PALMAS_REG_SMPS6) || (id == PALMAS_REG_SMPS8))
diff --git a/include/linux/mfd/palmas.h b/include/linux/mfd/palmas.h
index 8f21daf..98058ca 100644
--- a/include/linux/mfd/palmas.h
+++ b/include/linux/mfd/palmas.h
@@ -32,6 +32,19 @@
((a) == PALMAS_CHIP_ID))
#define is_palmas_charger(a) ((a) == PALMAS_CHIP_CHARGER_ID)
+/**
+ * Palmas PMIC feature types
+ *
+ * PALMAS_PMIC_FEATURE_SMPS10_BOOST - used when the PMIC provides SMPS10_BOOST
+ * regulator.
+ *
+ * PALMAS_PMIC_HAS(b, f) - macro to check if a bandgap device is capable of a
+ * specific feature (above) or not. Return non-zero, if yes.
+ */
+#define PALMAS_PMIC_FEATURE_SMPS10_BOOST BIT(0)
+#define PALMAS_PMIC_HAS(b, f) \
+ ((b)->features & PALMAS_PMIC_FEATURE_ ## f)
+
struct palmas_pmic;
struct palmas_gpadc;
struct palmas_resource;
@@ -46,6 +59,7 @@ struct palmas {
/* Stored chip id */
int id;
+ unsigned int features;
/* IRQ Data */
int irq;
u32 irq_mask;
--
1.7.5.4
--
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