lkml.org 
[lkml]   [2013]   [Oct]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 2/5] mfd: tc3589x: detect the precise version
Date
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>
---
drivers/mfd/tc3589x.c | 49 +++++++++++++++++++++++++++++++++++++++++++++++--
1 file changed, 47 insertions(+), 2 deletions(-)

diff --git a/drivers/mfd/tc3589x.c b/drivers/mfd/tc3589x.c
index 70f4909f..0eabbb0 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 +374,33 @@ 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_TC35890:
+ tc3589x->num_gpio = 24;
+ break;
+ case TC3589X_TC35892:
+ tc3589x->num_gpio = 24;
+ break;
+ case TC3589X_TC35893:
+ tc3589x->num_gpio = 20;
+ break;
+ case TC3589X_TC35894:
+ tc3589x->num_gpio = 24;
+ break;
+ case TC3589X_TC35895:
+ tc3589x->num_gpio = 20;
+ break;
+ case TC3589X_TC35896:
+ tc3589x->num_gpio = 20;
+ break;
+ case TC3589X_UNKNOWN:
+ tc3589x->num_gpio = 24;
+ break;
+ default:
+ tc3589x->num_gpio = 24;
+ break;
+ }

i2c_set_clientdata(i2c, tc3589x);

@@ -432,7 +471,13 @@ 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);
--
1.8.3.1


\
 
 \ /
  Last update: 2013-10-16 00:41    [W:0.051 / U:0.244 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site