Re: [RESEND PATCH] Input: tsc2007 - Read "ti,poll-period" as u32

From: Dmitry Torokhov

Date: Mon Aug 31 2026 - 19:38:49 EST


Hi Rob,

On Mon, Aug 31, 2026 at 02:43:51PM -0500, Rob Herring (Arm) wrote:
> The "ti,poll-period" property is documented as a normal uint32 cell.
> The driver used a u64 helper, which makes the helper type disagree with
> the schema even though the stored value is still small.
>
> Read "ti,poll-period" with the u32 helper matching the documented DT
> cell size.
>
> Assisted-by: Codex:gpt-5-5
> Signed-off-by: Rob Herring (Arm) <robh@xxxxxxxxxx>
> ---
> drivers/input/touchscreen/tsc2007_core.c | 5 ++---
> 1 file changed, 2 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/input/touchscreen/tsc2007_core.c b/drivers/input/touchscreen/tsc2007_core.c
> index e4d7da0f4434..e2f49b37e18c 100644
> --- a/drivers/input/touchscreen/tsc2007_core.c
> +++ b/drivers/input/touchscreen/tsc2007_core.c
> @@ -221,7 +221,6 @@ static int tsc2007_get_pendown_state_gpio(struct device *dev)
> static int tsc2007_probe_properties(struct device *dev, struct tsc2007 *ts)
> {
> u32 val32;
> - u64 val64;
>
> if (!device_property_read_u32(dev, "ti,max-rt", &val32))
> ts->max_rt = val32;
> @@ -237,8 +236,8 @@ static int tsc2007_probe_properties(struct device *dev, struct tsc2007 *ts)
> if (!device_property_read_u32(dev, "ti,fuzzz", &val32))
> ts->fuzzz = val32;
>
> - if (!device_property_read_u64(dev, "ti,poll-period", &val64))
> - ts->poll_period = msecs_to_jiffies(val64);
> + if (!device_property_read_u32(dev, "ti,poll-period", &val32))

Do we need to handle -EOVERFLOW and keep compatibility with device trees
that used /64/ to match driver implementation? Or we expect that there
were/are none?

Thanks.

--
Dmitry