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@lechnology.com 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@lechnology.com Acked-by: William Breathitt Gray vilhelm.gray@gmail.com Link: https://lore.kernel.org/r/20201214000927.1793062-1-david@lechnology.com Cc: Stable@vger.kernel.org Signed-off-by: Jonathan Cameron Jonathan.Cameron@huawei.com --- 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,