From: Yingjoe Chen <yingjoe.chen@mediatek.com>
To: Fengping Yu <fengping.yu@mediatek.com>
Cc: devicetree@vger.kernel.org,
Dmitry Torokhov <dmitry.torokhov@gmail.com>,
Marco Felsch <m.felsch@pengutronix.de>,
linux-kernel@vger.kernel.org, Rob Herring <robh+dt@kernel.org>,
linux-mediatek@lists.infradead.org, linux-input@vger.kernel.org,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v17 1/3] dt-bindings: Add bindings for Mediatek matrix keypad
Date: Tue, 11 Aug 2020 09:47:23 +0800 [thread overview]
Message-ID: <1597110443.22273.5.camel@mtksdaap41> (raw)
In-Reply-To: <20200810064058.6467-2-fengping.yu@mediatek.com>
Hi,
On Mon, 2020-08-10 at 14:40 +0800, Fengping Yu wrote:
> From: "fengping.yu" <fengping.yu@mediatek.com>
>
> This patch add devicetree bindings for Mediatek matrix keypad driver.
>
> Signed-off-by: fengping.yu <fengping.yu@mediatek.com>
> ---
> .../devicetree/bindings/input/mtk-kpd.yaml | 87 +++++++++++++++++++
> 1 file changed, 87 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/input/mtk-kpd.yaml
>
> diff --git a/Documentation/devicetree/bindings/input/mtk-kpd.yaml b/Documentation/devicetree/bindings/input/mtk-kpd.yaml
> new file mode 100644
> index 000000000000..d74dd8a6fbde
<...>
> + keypad,num-columns:
> + description: Number of column lines connected to the keypad controller,
> + it is not equal to PCB columns number, instead you should add required value
> + for each IC. If not specified, the default value is 1.
> +
> + keypad,num-rows:
> + description: Number of row lines connected to the keypad controller, it is
> + not equal to PCB rows number, instead you should add required value for each IC.
> + If not specified, the default value is 1.
Your source code can't really handle dts without rows/columns
properties. Also, the default value doesn't make any sense. No IC will
have rows or columns set to 1.
Since these are IC specified, not board specified, I think you should
just have the correct numbers in driver.
Joe.C
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next prev parent reply other threads:[~2020-08-11 2:00 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-10 6:40 [PATCH v17] Add matrix keypad driver support for Mediatek SoCs Fengping Yu
2020-08-10 6:40 ` [PATCH v17 1/3] dt-bindings: Add bindings for Mediatek matrix keypad Fengping Yu
2020-08-11 1:47 ` Yingjoe Chen [this message]
2020-08-12 22:13 ` Dmitry Torokhov
2020-08-13 5:02 ` Yingjoe Chen
2020-08-12 22:37 ` Dmitry Torokhov
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