From patchwork Wed Nov 23 15:20:00 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Abel Vesa X-Patchwork-Id: 628105 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 C19E9C47088 for ; Wed, 23 Nov 2022 15:20:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236549AbiKWPU0 (ORCPT ); Wed, 23 Nov 2022 10:20:26 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56526 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238722AbiKWPUP (ORCPT ); Wed, 23 Nov 2022 10:20:15 -0500 Received: from mail-wr1-x42d.google.com (mail-wr1-x42d.google.com [IPv6:2a00:1450:4864:20::42d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0CA38922FF for ; Wed, 23 Nov 2022 07:20:11 -0800 (PST) Received: by mail-wr1-x42d.google.com with SMTP id z4so15293301wrr.3 for ; Wed, 23 Nov 2022 07:20:10 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=KN2/QtlLjs6UFWl8nj+yt8+0EJtSW1V4HYBBliOcWZU=; b=vASi9wIAwi7NyOC+JAIYezcqoYjpHTurwdRxp58vNKtT/4omMKwrmGjE4iTV4anhri OJ3CM7aGpLB27L5O5GqxOED2u/yexkYN4wsEXNzjZuzMkTFQu59j9vq/w736GI7M5chL 8y/1Wa0MNkKXH5jGV/k/4bfpeya3yHS2n2kzJTV8UY6znWO40gXSj8DkTQ+QzvbTWKJ+ R/YQToWISv9XZzJjG4lBeIAdS03dghBBllawSeVm4JvqFp9iFvh7jg8/OjotIGeMNHzJ OLnH40F1wkeq0asTs4sNHdU+cXlN25BQcNHxdb3ASAmiGVw7FZBmO0zwp4sx5CCT3Fp6 d49g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=KN2/QtlLjs6UFWl8nj+yt8+0EJtSW1V4HYBBliOcWZU=; b=Deb06ZJ7WXKPLqHvi10cmQbUoV0QyV/MCwtWUP+eipUSfJxwSWlfJNsLBk4OVTq+mi J006x3LKPM1GY6sGWmn6WkWQUzQphARoqVLspsNKlL4ZxxBdcTLGeZZQtowR5QsMgJc+ wa8IqBK284keLPzkDNg2ZqWVSsz7iu324jBBs19pmGrhR4+S3IGza8Gl5q17uORCJCxm LcTqEc8pn76f2iWkrObW1C/d0s8xyG3rwFgyIYLyJp/UAE2rt2SwR1WDnOjH8pTgLrXM VNcPvrlAKwrN33vIkWOPXjhSAzGVZMEueo3LJWQ0kwsVwt1h0Pnsv/9pZrVR5HV6fzAo IulA== X-Gm-Message-State: ANoB5pnx+RrRuU6tB0R4s8W8Hcu4JDEOk+1QGeDi1bZbmaIEEXkJjf77 33AR7TcrQpw+KOSOl+prvU/7NQ== X-Google-Smtp-Source: AA0mqf682lXAmgko7RMtxcHSFtApXR2SzqfBO+7Ao5r3yKfKG1PzE/P+1F7t9fIu2vjjipJtd/QXCQ== X-Received: by 2002:a5d:52d0:0:b0:241:c340:d1ea with SMTP id r16-20020a5d52d0000000b00241c340d1eamr10748919wrv.434.1669216809572; Wed, 23 Nov 2022 07:20:09 -0800 (PST) Received: from localhost.localdomain ([94.52.112.99]) by smtp.gmail.com with ESMTPSA id l10-20020adff48a000000b002366ded5864sm16764914wro.116.2022.11.23.07.20.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 23 Nov 2022 07:20:09 -0800 (PST) From: Abel Vesa To: Andy Gross , Bjorn Andersson , Konrad Dybcio , Linus Walleij , Rob Herring , Krzysztof Kozlowski Cc: Linux Kernel Mailing List , devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org, "linux-gpio@vger.kernel.org" , Neil Armstrong Subject: [PATCH v2 3/4] pinctrl: qcom: add support for i2c specific pull feature Date: Wed, 23 Nov 2022 17:20:00 +0200 Message-Id: <20221123152001.694546-4-abel.vesa@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20221123152001.694546-1-abel.vesa@linaro.org> References: <20221123152001.694546-1-abel.vesa@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org From: Neil Armstrong Add support for the new i2c_pull property introduced for SM8550 setting a I2C specific pull mode on I2C able pins. Signed-off-by: Neil Armstrong Signed-off-by: Abel Vesa --- Changes since v1: * Added my missing Signed-off-by tag drivers/pinctrl/qcom/pinctrl-msm.c | 20 ++++++++++++++++++++ drivers/pinctrl/qcom/pinctrl-msm.h | 1 + 2 files changed, 21 insertions(+) diff --git a/drivers/pinctrl/qcom/pinctrl-msm.c b/drivers/pinctrl/qcom/pinctrl-msm.c index 8fbb953c4bbe..f92082c1c805 100644 --- a/drivers/pinctrl/qcom/pinctrl-msm.c +++ b/drivers/pinctrl/qcom/pinctrl-msm.c @@ -83,6 +83,12 @@ struct msm_pinctrl { u32 phys_base[MAX_NR_TILES]; }; +#define PIN_CONFIG_QCOM_I2C_PULL (PIN_CONFIG_END + 1) + +static const struct pinconf_generic_params msm_pinconf_custom_bindings[] = { + {"qcom,i2c-pull", PIN_CONFIG_END + 1, 0}, +}; + #define MSM_ACCESSOR(name) \ static u32 msm_readl_##name(struct msm_pinctrl *pctrl, \ const struct msm_pingroup *g) \ @@ -324,6 +330,12 @@ static int msm_config_reg(struct msm_pinctrl *pctrl, *bit = g->oe_bit; *mask = 1; break; + case PIN_CONFIG_QCOM_I2C_PULL: + if (g->i2c_pull_bit == 0) + return -EOPNOTSUPP; + *bit = g->i2c_pull_bit; + *mask = 1; + break; default: return -ENOTSUPP; } @@ -415,6 +427,9 @@ static int msm_config_group_get(struct pinctrl_dev *pctldev, return -EINVAL; arg = 1; break; + case PIN_CONFIG_QCOM_I2C_PULL: + arg = 1; + break; default: return -ENOTSUPP; } @@ -498,6 +513,9 @@ static int msm_config_group_set(struct pinctrl_dev *pctldev, /* disable output */ arg = 0; break; + case PIN_CONFIG_QCOM_I2C_PULL: + arg = 1; + break; default: dev_err(pctrl->dev, "Unsupported config parameter: %x\n", param); @@ -1495,6 +1513,8 @@ int msm_pinctrl_probe(struct platform_device *pdev, pctrl->desc.name = dev_name(&pdev->dev); pctrl->desc.pins = pctrl->soc->pins; pctrl->desc.npins = pctrl->soc->npins; + pctrl->desc.custom_params = msm_pinconf_custom_bindings; + pctrl->desc.num_custom_params = ARRAY_SIZE(msm_pinconf_custom_bindings); pctrl->pctrl = devm_pinctrl_register(&pdev->dev, &pctrl->desc, pctrl); if (IS_ERR(pctrl->pctrl)) { diff --git a/drivers/pinctrl/qcom/pinctrl-msm.h b/drivers/pinctrl/qcom/pinctrl-msm.h index 05a1209bf9ae..985eceda2517 100644 --- a/drivers/pinctrl/qcom/pinctrl-msm.h +++ b/drivers/pinctrl/qcom/pinctrl-msm.h @@ -80,6 +80,7 @@ struct msm_pingroup { unsigned pull_bit:5; unsigned drv_bit:5; + unsigned i2c_pull_bit:5; unsigned od_bit:5; unsigned egpio_enable:5;