This is a note to let you know that I've just added the patch titled
counter:ti-eqep: remove floor
to my staging git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git
in the staging-linus branch.
The patch will show up in the next release of the linux-next tree
(usually sometime within the next 24 hours during the week.)
The patch will hopefully also be merged in Linus's tree for the
next -rc kernel release.
If you have any questions about this process, please let me know.
>From 49a9565a7a7ce168e3e6482fb24e62d12f72ab81 Mon Sep 17 00:00:00 2001
From: David Lechner <david@xxxxxxxxxxxxxx>
Date: Sun, 13 Dec 2020 18:09:27 -0600
Subject: counter:ti-eqep: remove floor
The hardware doesn't support this. QPOSINIT is an initialization value
that is triggered by other things. When the counter overflows, it
always wraps around to zero.
Fixes: f213729f6796 "counter: new TI eQEP driver"
Signed-off-by: David Lechner <david@xxxxxxxxxxxxxx>
Acked-by: William Breathitt Gray <vilhelm.gray@xxxxxxxxx>
Link: https://lore.kernel.org/r/20201214000927.1793062-1-david@xxxxxxxxxxxxxx
Cc: <Stable@xxxxxxxxxxxxxxx>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
---
drivers/counter/ti-eqep.c | 35 -----------------------------------
1 file changed, 35 deletions(-)
diff --git a/drivers/counter/ti-eqep.c b/drivers/counter/ti-eqep.c
index a60aee1a1a29..65df9ef5b5bc 100644
--- a/drivers/counter/ti-eqep.c
+++ b/drivers/counter/ti-eqep.c
@@ -235,36 +235,6 @@ static ssize_t ti_eqep_position_ceiling_write(struct counter_device *counter,
return len;
}
-static ssize_t ti_eqep_position_floor_read(struct counter_device *counter,
- struct counter_count *count,
- void *ext_priv, char *buf)
-{
- struct ti_eqep_cnt *priv = counter->priv;
- u32 qposinit;
-
- regmap_read(priv->regmap32, QPOSINIT, &qposinit);
-
- return sprintf(buf, "%u\n", qposinit);
-}
-
-static ssize_t ti_eqep_position_floor_write(struct counter_device *counter,
- struct counter_count *count,
- void *ext_priv, const char *buf,
- size_t len)
-{
- struct ti_eqep_cnt *priv = counter->priv;
- int err;
- u32 res;
-
- err = kstrtouint(buf, 0, &res);
- if (err < 0)
- return err;
-
- regmap_write(priv->regmap32, QPOSINIT, res);
-
- return len;
-}
-
static ssize_t ti_eqep_position_enable_read(struct counter_device *counter,
struct counter_count *count,
void *ext_priv, char *buf)
@@ -301,11 +271,6 @@ static struct counter_count_ext ti_eqep_position_ext[] = {
.read = ti_eqep_position_ceiling_read,
.write = ti_eqep_position_ceiling_write,
},
- {
- .name = "floor",
- .read = ti_eqep_position_floor_read,
- .write = ti_eqep_position_floor_write,
- },
{
.name = "enable",
.read = ti_eqep_position_enable_read,
--
2.30.0
