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authorLinus Walleij <linus.walleij@linaro.org>2013-10-18 13:51:45 +0400
committerLee Jones <lee.jones@linaro.org>2013-10-23 19:22:28 +0400
commite64c1eb47352d62f5bb06284bae72261d934faa8 (patch)
treeff3e5d2744fe0d783bb33d98a7c904fa44b14b7b
parentb0e5992612a1079ddcc1810b786ab8ca438cddae (diff)
downloadlinux-e64c1eb47352d62f5bb06284bae72261d934faa8.tar.xz
mfd: tc3589x: Detect the precise version
Instead of detecting the "tc3589x" and hard-coding the number of GPIO pins to 24, encode all the possible subtypes and set the number of GPIO pins from the type. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
-rw-r--r--drivers/mfd/tc3589x.c37
1 files changed, 35 insertions, 2 deletions
diff --git a/drivers/mfd/tc3589x.c b/drivers/mfd/tc3589x.c
index 70f4909fee13..87ea51dc6234 100644
--- a/drivers/mfd/tc3589x.c
+++ b/drivers/mfd/tc3589x.c
@@ -16,6 +16,19 @@
#include <linux/mfd/core.h>
#include <linux/mfd/tc3589x.h>
+/**
+ * enum tc3589x_version - indicates the TC3589x version
+ */
+enum tc3589x_version {
+ TC3589X_TC35890,
+ TC3589X_TC35892,
+ TC3589X_TC35893,
+ TC3589X_TC35894,
+ TC3589X_TC35895,
+ TC3589X_TC35896,
+ TC3589X_UNKNOWN,
+};
+
#define TC3589x_CLKMODE_MODCTL_SLEEP 0x0
#define TC3589x_CLKMODE_MODCTL_OPERATION (1 << 0)
@@ -361,7 +374,21 @@ static int tc3589x_probe(struct i2c_client *i2c,
tc3589x->i2c = i2c;
tc3589x->pdata = pdata;
tc3589x->irq_base = pdata->irq_base;
- tc3589x->num_gpio = id->driver_data;
+
+ switch (id->driver_data) {
+ case TC3589X_TC35893:
+ case TC3589X_TC35895:
+ case TC3589X_TC35896:
+ tc3589x->num_gpio = 20;
+ break;
+ case TC3589X_TC35890:
+ case TC3589X_TC35892:
+ case TC3589X_TC35894:
+ case TC3589X_UNKNOWN:
+ default:
+ tc3589x->num_gpio = 24;
+ break;
+ }
i2c_set_clientdata(i2c, tc3589x);
@@ -432,7 +459,13 @@ static int tc3589x_resume(struct device *dev)
static SIMPLE_DEV_PM_OPS(tc3589x_dev_pm_ops, tc3589x_suspend, tc3589x_resume);
static const struct i2c_device_id tc3589x_id[] = {
- { "tc3589x", 24 },
+ { "tc35890", TC3589X_TC35890 },
+ { "tc35892", TC3589X_TC35892 },
+ { "tc35893", TC3589X_TC35893 },
+ { "tc35894", TC3589X_TC35894 },
+ { "tc35895", TC3589X_TC35895 },
+ { "tc35896", TC3589X_TC35896 },
+ { "tc3589x", TC3589X_UNKNOWN },
{ }
};
MODULE_DEVICE_TABLE(i2c, tc3589x_id);