Hi Andy,
This patch is a a band-aid solution to fix the following issue:
https://docs.openmoko.org/trac/ticket/1884
Actually, I think your comment on this is interesting.
I will try your idea to see whether we could detect the interrupt form
PMU or not in the last moment.
But before that, we might need this solution. I think you can keep this
patch in andy-tracking branch.
Matt
From: Matt Hsu <[EMAIL PROTECTED]>
Date: Thu, 9 Oct 2008 00:34:03 +0800
To export sysfs of debounce time of ONKEY in pcf50633 driver.
Signed-off-by: Matt Hsu <[EMAIL PROTECTED]>
---
drivers/i2c/chips/pcf50633.c | 44 ++++++++++++++++++++++++++++++++++++++++++
drivers/i2c/chips/pcf50633.h | 10 +++++++++
2 files changed, 54 insertions(+), 0 deletions(-)
diff --git a/drivers/i2c/chips/pcf50633.c b/drivers/i2c/chips/pcf50633.c
index c186fdb..631bb1c 100644
--- a/drivers/i2c/chips/pcf50633.c
+++ b/drivers/i2c/chips/pcf50633.c
@@ -2033,6 +2033,49 @@ static ssize_t show_dump_regs(struct device *dev, struct device_attribute *attr,
static DEVICE_ATTR(dump_regs, 0400, show_dump_regs, NULL);
+/*
+ * Onkey debounce time
+ */
+static const char *deb_time_names[] = {
+ [PCF50633_ONKEY_DEB_NONE] = "0",
+ [PCF50633_ONKEY_DEB_5MS] = "5",
+ [PCF50633_ONKEY_DEB_14MS] = "14",
+ [PCF50633_ONKEY_DEB_62MS] = "62",
+ [PCF50633_ONKEY_DEB_200MS] = "200",
+ [PCF50633_ONKEY_DEB_500MS] = "500",
+ [PCF50633_ONKEY_DEB_1000MS] = "1000",
+ [PCF50633_ONKEY_DEB_2000MS] = "2000",
+};
+
+static ssize_t set_onkey_deb(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct pcf50633_data *pcf = i2c_get_clientdata(client);
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(deb_time_names); i++) {
+ if (!strncmp(buf, deb_time_names[i], strlen(deb_time_names[i]))) {
+ reg_set_bit_mask(pcf, PCF50633_REG_OOCTIM2,
+ 0x7, i);
+ }
+ }
+
+ return count;
+}
+
+static ssize_t show_onkey_deb(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct pcf50633_data *pcf = i2c_get_clientdata(client);
+ u_int8_t deb = 0x7;
+
+ deb &= reg_read(pcf, PCF50633_REG_OOCTIM2);
+ return sprintf(buf, "%s\n", deb_time_names[deb]);
+}
+
+static DEVICE_ATTR(onkey_deb, S_IRUGO | S_IWUSR, show_onkey_deb, set_onkey_deb);
/***********************************************************************
* Driver initialization
@@ -2057,6 +2100,7 @@ static struct attribute *pcf_sysfs_entries[] = {
&dev_attr_force_usb_limit_dangerous.attr,
&dev_attr_charger_adc.attr,
&dev_attr_dump_regs.attr,
+ &dev_attr_onkey_deb.attr,
NULL, /* going to add things at this point! */
NULL,
NULL,
diff --git a/drivers/i2c/chips/pcf50633.h b/drivers/i2c/chips/pcf50633.h
index 5d54131..83ad1ba 100644
--- a/drivers/i2c/chips/pcf50633.h
+++ b/drivers/i2c/chips/pcf50633.h
@@ -333,6 +333,16 @@ enum pcf50633_reg_mbcs3 {
PCF50633_MBCS3_VRES = 0x80, /* 1: Vbat > Vth(RES) */
};
+enum pcf50633_reg_ooctim2 {
+ PCF50633_ONKEY_DEB_NONE,
+ PCF50633_ONKEY_DEB_5MS,
+ PCF50633_ONKEY_DEB_14MS,
+ PCF50633_ONKEY_DEB_62MS,
+ PCF50633_ONKEY_DEB_200MS,
+ PCF50633_ONKEY_DEB_500MS,
+ PCF50633_ONKEY_DEB_1000MS,
+ PCF50633_ONKEY_DEB_2000MS,
+};
/* this is to be provided by the board implementation */
extern const u_int8_t pcf50633_initial_regs[__NUM_PCF50633_REGS];
--
1.5.3.6
