Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
Date:   Fri, 21 Jan 2022 16:43:06 -0600
From:   Rob Herring <robh@kernel.org>
To:     Peter Geis <pgwipeout@gmail.com>
Cc:     alistair@alistair23.me, alistair23@gmail.com, andreas@kemnade.info,
        devicetree@vger.kernel.org, dmitry.torokhov@gmail.com,
        linus.walleij@linaro.org, linux-arm-kernel@lists.infradead.org,
        linux-input@vger.kernel.org, linux-kernel@vger.kernel.org,
        maxime.ripard@bootlin.com, mylene.josserand@bootlin.com,
        rydberg@bitmath.org
Subject: Re: [PATCH v5 1/4] Input: Add driver for Cypress Generation 5
 touchscreen
Message-ID: <Yes2+ps8qTT52g3Z@robh.at.kernel.org>
References: <20220109115331.388633-2-alistair@alistair23.me>
 <20220119012637.1713748-1-pgwipeout@gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20220119012637.1713748-1-pgwipeout@gmail.com>
Precedence: bulk

On Tue, Jan 18, 2022 at 08:26:37PM -0500, Peter Geis wrote:
> Good Evening,
> 
> I tried using this with a cypress tma448 and thought there was an issue
> with the driver.
> Further investigation found the tma448 in question had no configuration
> burned into it, thus max size and pressure are zero.
> 
> I've added the patch below to extend the driver with device tree
> overrides.
> Unfortunately device_property_read_u16 is broken on arm64 currently, as
> it returns zero.

FYI, I replied to your bug report:

https://lore.kernel.org/all/CAMdYzYquceSBrOsvO8rW9wmJA_RO=HSwv_waVoS=0hsP414T-A@mail.gmail.com/

Rob