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authorLee Jones <lee.jones@linaro.org>2013-02-26 14:04:37 +0000
committerLee Jones <lee.jones@linaro.org>2013-03-07 12:28:55 +0800
commit127629d74efff202372fbd6097e607fcb2c8a7af (patch)
tree493778be7451322b81acdbe0d3d221450a1d7ed9 /drivers/mfd/ab8500-debugfs.c
parentc7ebaee292fb0f935752d50ef9bad1db74efde6e (diff)
downloadlinux-127629d74efff202372fbd6097e607fcb2c8a7af.tar.bz2
mfd: ab8500-debug: Add ADC input channel usb_id in debugfs
Signed-off-by: Yang QU <yang.qu@stericsson.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Reviewed-by: Alexandre BOURDIOL <alexandre.bourdiol@stericsson.com> Reviewed-by: Philippe LANGLAIS <philippe.langlais@stericsson.com> Reviewed-by: Mattias WALLIN <mattias.wallin@stericsson.com> Acked-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'drivers/mfd/ab8500-debugfs.c')
-rw-r--r--drivers/mfd/ab8500-debugfs.c35
1 files changed, 35 insertions, 0 deletions
diff --git a/drivers/mfd/ab8500-debugfs.c b/drivers/mfd/ab8500-debugfs.c
index a653a0747b31..44c9bc1f2544 100644
--- a/drivers/mfd/ab8500-debugfs.c
+++ b/drivers/mfd/ab8500-debugfs.c
@@ -1706,6 +1706,35 @@ static const struct file_operations ab8500_gpadc_die_temp_fops = {
.owner = THIS_MODULE,
};
+static int ab8500_gpadc_usb_id_print(struct seq_file *s, void *p)
+{
+ int usb_id_raw;
+ int usb_id_convert;
+ struct ab8500_gpadc *gpadc;
+
+ gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
+ usb_id_raw = ab8500_gpadc_read_raw(gpadc, USB_ID,
+ avg_sample, trig_edge, trig_timer, conv_type);
+ usb_id_convert = ab8500_gpadc_ad_to_voltage(gpadc, USB_ID,
+ usb_id_raw);
+
+ return seq_printf(s, "%d,0x%X\n",
+ usb_id_convert, usb_id_raw);
+}
+
+static int ab8500_gpadc_usb_id_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, ab8500_gpadc_usb_id_print, inode->i_private);
+}
+
+static const struct file_operations ab8500_gpadc_usb_id_fops = {
+ .open = ab8500_gpadc_usb_id_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
static int ab8540_gpadc_xtal_temp_print(struct seq_file *s, void *p)
{
int xtal_temp_raw;
@@ -2712,6 +2741,12 @@ static int ab8500_debug_probe(struct platform_device *plf)
ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_die_temp_fops);
if (!file)
goto err;
+
+ file = debugfs_create_file("usb_id", (S_IRUGO | S_IWUGO),
+ ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_usb_id_fops);
+ if (!file)
+ goto err;
+
if (is_ab8540(ab8500)) {
file = debugfs_create_file("xtal_temp", (S_IRUGO | S_IWUGO),
ab8500_gpadc_dir, &plf->dev, &ab8540_gpadc_xtal_temp_fops);