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From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
To: "Rob Herring (Arm)" <robh@kernel.org>
Cc: linux-input@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [RESEND PATCH] Input: tsc2007 - Read "ti,poll-period" as u32
Date: Mon, 31 Aug 2026 12:51:44 -0700	[thread overview]
Message-ID: <apXaYJhFnC0UCHb0@google.com> (raw)
In-Reply-To: <20260831194352.1185860-1-robh@kernel.org>

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@kernel.org>
> ---
>  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

  reply	other threads:[~2026-08-31 19:51 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-08-31 19:43 Rob Herring (Arm)
2026-08-31 19:51 ` Dmitry Torokhov [this message]
2026-08-31 23:18   ` Rob Herring

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