From patchwork Sun Oct 16 10:27:52 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Job Noorman X-Patchwork-Id: 615912 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C992EC43219 for ; Sun, 16 Oct 2022 10:36:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229653AbiJPKgC (ORCPT ); Sun, 16 Oct 2022 06:36:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36230 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229687AbiJPKf7 (ORCPT ); Sun, 16 Oct 2022 06:35:59 -0400 X-Greylist: delayed 439 seconds by postgrey-1.37 at lindbergh.monkeyblade.net; Sun, 16 Oct 2022 03:35:54 PDT Received: from mout-y-209.mailbox.org (mout-y-209.mailbox.org [IPv6:2001:67c:2050:103:465::209]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4E7F13A162; Sun, 16 Oct 2022 03:35:54 -0700 (PDT) Received: from smtp102.mailbox.org (smtp102.mailbox.org [IPv6:2001:67c:2050:b231:465::102]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-384) server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mout-y-209.mailbox.org (Postfix) with ESMTPS id 4MqxDD3tsQz9td7; Sun, 16 Oct 2022 12:28:28 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=noorman.info; s=MBO0001; t=1665916108; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=SOmvazYlegZ4LyhI1lnP3c7B4CLLHK3pQ+YSzG3ZBS4=; b=Ui7d9hsffYYPGsApD0q4wze6+Y21q4caGV0s/k8d0xruIaIWx3n+KMgos/lNdobP7Cp8fB x2h1WmMFmr0TMiibwQrBgGUS50GU80B6cJi9uCIbLl7DAjgadHYZx1Xu/Wp3B8KvW/M4XD u090SzrWPoeO8ZhlXepEjOfUMlgweDF+bvoS25hforSFdE8nxGw7oLh3HNOOPZbjbxG8Ml vRSApZhlUwfGSKA1QKT5CkgMvFOCo1NrLsfqUxAsZfwAIQv40CcZfm1oYZf0OO+nDuYnkD ca8cUCgycuPHNmDeuYcVRQ4cE6A7hzh7e6tH2hV1n9SwsYXJxGbxSx6dRM2Raw== From: Job Noorman To: Job Noorman , Dmitry Torokhov , Rob Herring , Krzysztof Kozlowski , Andy Gross , Bjorn Andersson , Konrad Dybcio , Henrik Rydberg Cc: Luca Weiss , linux-input@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org Subject: [PATCH v3 0/3] Add Himax hx83112b touchscreen driver Date: Sun, 16 Oct 2022 12:27:52 +0200 Message-Id: <20221016102756.40345-1-job@noorman.info> MIME-Version: 1.0 X-Rspamd-Queue-Id: 4MqxDD3tsQz9td7 Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org Hi all, This series adds support for the Himax hx83112b. The hx83112b supports 10 point multitouch with hardware tracking of touch points. It is the touchschreen used by the Fairphone 3. Note that a datasheet was unavailable for this device, so it was built based on the Android driver that was tagged as GPLv2. This series is a complete rewrite, though, and the code bears no resemblence to the original implementation. It is expected that this driver can be made to work on other hx83xxx devices, especially the hx83112a used in the Fairphone 4. However, since we have been unable to verify this, this driver only declares compatibility with the hx83112b and uses very specific file names. Changes since v2 (based on Jeff LaBundy's comments): - Kconfig: depend on REGMAP_I2C instead of I2C - Don't use dev_err_probe() - Return IRQ_NONE on failed register reads to prevent possible interrupt storm - Add small delay after de-asserting reset pin - Some minor coding style updates - dt-bindings: make touchscreen-size-{x,y} required Changes since v1: - Fix sparse warnings. Reported-by: kernel test robot . - Fix dt_binding_check. Best regards, Job Previous versions: - v2: https://lore.kernel.org/lkml/20221012202341.295351-1-job@noorman.info/ - v1: https://lore.kernel.org/lkml/20221011190729.14747-1-job@noorman.info/ Job Noorman (3): dt-bindings: touchscreen: add Himax hx83112b bindings Input: add driver for Himax hx83112b touchscreen devices arm64: dts: qcom: sdm632: fairphone-fp3: add touchscreen .../input/touchscreen/himax,hx83112b.yaml | 63 +++ MAINTAINERS | 7 + .../boot/dts/qcom/sdm632-fairphone-fp3.dts | 14 + drivers/input/touchscreen/Kconfig | 11 + drivers/input/touchscreen/Makefile | 1 + drivers/input/touchscreen/himax_hx83112b.c | 382 ++++++++++++++++++ 6 files changed, 478 insertions(+) create mode 100644 Documentation/devicetree/bindings/input/touchscreen/himax,hx83112b.yaml create mode 100644 drivers/input/touchscreen/himax_hx83112b.c base-commit: d4a596eddb90114f5f5f32a440057a175517b090