From patchwork Wed Mar 10 11:12:10 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shawn Guo X-Patchwork-Id: 12127837 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DFAAEC433E0 for ; Wed, 10 Mar 2021 11:13:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 99AC764FE4 for ; Wed, 10 Mar 2021 11:13:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231161AbhCJLMa (ORCPT ); Wed, 10 Mar 2021 06:12:30 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45326 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232746AbhCJLMY (ORCPT ); Wed, 10 Mar 2021 06:12:24 -0500 Received: from mail-pl1-x62f.google.com (mail-pl1-x62f.google.com [IPv6:2607:f8b0:4864:20::62f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D3A68C061760 for ; Wed, 10 Mar 2021 03:12:24 -0800 (PST) Received: by mail-pl1-x62f.google.com with SMTP id j6so8309073plx.6 for ; Wed, 10 Mar 2021 03:12:24 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id; bh=t910xUfCo6T+ccp2jGbLlVuf2Stz9bRKAHK4MexjvP4=; b=JrhHNXK8eRDOMg1GJwNvuWVcLKbP8SoaSrHwtAa6PX2twCsHLRa67HP5tdaxuNbTQ5 3rUD6VOCBg3ov2hsic3zdCHUbbYmGlX79fBGf0zNcSp7v0IehcYP+8HXq3HkCbYRAgh6 uNaR1WRZ1yGbgIPDmjGOBy+L5mgVjxdMVJWy5JKfJAR1HCj95VI4qUCmQpUrNJLy5ABS QFCjXyj8VZN8oc/tmxDGg0tyruoi/5niM2eKNL5kKYLen96quxK2Nz4Ji+c/5vcoIKzi GdfaIUS6hTTYHp8UaWRfgCY0xXHSXaE/gLC97eigYbyv80xOI5SMHJ6kLo5VLoAWmhTY rELw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=t910xUfCo6T+ccp2jGbLlVuf2Stz9bRKAHK4MexjvP4=; b=Wj7wpKCHtuwkfA0VcHoepTE0eA8FbfDk7zXwGzXP2UDFf2q26Z7XoT7tWYAF7SXaZk Zi53MH8xUuT1dZXFSCYFP3OJUYDt99A69sdViZ2lcw8pL82gKhcVCAWRLxRl2IKIMtfq cYhCy0QkWMWPuu8olSaJOWRv23zXJX0T+04/12JfsZrqEA4VoX16tVXxJrSbrsVhnOko CPLGeXDacew5T/73Mc2hyvQRTSUgmIMCACSrNpF2EKM4c4Ue08lg0YL8sYMnsNaIlOWx gjqyV/TGfBW0+mY+WEeHfv1euyCleVUYesqtuNWMykUVqapv4FgScMwEyjo9023pyKXu 4ZzQ== X-Gm-Message-State: AOAM5324m1QrYYcDIDPCGAuVBG1QM7HrEeqM2PEWdw7ZPZpitEAYsh4N U9xiyqTVSq0+d8AGoUS6HyAwFw== X-Google-Smtp-Source: ABdhPJxwulw1rtb3ToIDxi3BzfVOPmCIGJWC9rRqF/XqaPik8kekfVkVyQDfS4Q7DsxA8d+uwkNhxw== X-Received: by 2002:a17:903:31c4:b029:e1:8840:8ab9 with SMTP id v4-20020a17090331c4b02900e188408ab9mr2543712ple.70.1615374744416; Wed, 10 Mar 2021 03:12:24 -0800 (PST) Received: from localhost.localdomain (80.251.214.228.16clouds.com. [80.251.214.228]) by smtp.gmail.com with ESMTPSA id i20sm15446949pgg.65.2021.03.10.03.12.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 10 Mar 2021 03:12:23 -0800 (PST) From: Shawn Guo To: Linus Walleij Cc: Bjorn Andersson , Andy Shevchenko , linux-gpio@vger.kernel.org, linux-arm-msm@vger.kernel.org, Shawn Guo Subject: [PATCH v4] pinctrl: qcom: sc8180x: add ACPI probe support Date: Wed, 10 Mar 2021 19:12:10 +0800 Message-Id: <20210310111210.1232-1-shawn.guo@linaro.org> X-Mailer: git-send-email 2.17.1 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org It adds ACPI probe support for pinctrl-sc8180x driver. We have one problem with ACPI table, i.e. GIO0 (TLMM) block has one single memory resource to cover 3 tiles defined by SC8180X. To follow the hardware layout of 3 tiles which is already supported DT probe, it adds one function to replace the original single memory resource with 3 named ones for tiles. With that, We can map memory for ACPI in the same way as DT. Signed-off-by: Shawn Guo --- Changes for 4: - Add sc8180x_pinctrl_add_tile_resources() to massage memory resource for ACPI probe. Changes for v3: - Remove the use of tiles completely. - Drop unneed include of acpi.h. Changes for v2: - Pass soc_data pointer via .driver_data. - Drop use of CONFIG_ACPI and ACPI_PTR(). - Add comment for sc8180x_acpi_reserved_gpios[] terminator. drivers/pinctrl/qcom/Kconfig | 2 +- drivers/pinctrl/qcom/pinctrl-sc8180x.c | 119 ++++++++++++++++++++++++- 2 files changed, 118 insertions(+), 3 deletions(-) diff --git a/drivers/pinctrl/qcom/Kconfig b/drivers/pinctrl/qcom/Kconfig index 6853a896c476..9f0218c4f9b3 100644 --- a/drivers/pinctrl/qcom/Kconfig +++ b/drivers/pinctrl/qcom/Kconfig @@ -222,7 +222,7 @@ config PINCTRL_SC7280 config PINCTRL_SC8180X tristate "Qualcomm Technologies Inc SC8180x pin controller driver" - depends on GPIOLIB && OF + depends on GPIOLIB && (OF || ACPI) select PINCTRL_MSM help This is the pinctrl, pinmux, pinconf and gpiolib driver for the diff --git a/drivers/pinctrl/qcom/pinctrl-sc8180x.c b/drivers/pinctrl/qcom/pinctrl-sc8180x.c index b765bf667574..4ff80a7a1221 100644 --- a/drivers/pinctrl/qcom/pinctrl-sc8180x.c +++ b/drivers/pinctrl/qcom/pinctrl-sc8180x.c @@ -23,6 +23,21 @@ enum { WEST }; +/* + * ACPI DSDT has one single memory resource for TLMM. The offsets below are + * used to locate different tiles for ACPI probe. + */ +struct tile_info { + u32 offset; + u32 size; +}; + +static const struct tile_info sc8180x_tile_info[] = { + { 0x00d00000, 0x00300000, }, + { 0x00500000, 0x00700000, }, + { 0x00100000, 0x00300000, }, +}; + #define FUNCTION(fname) \ [msm_mux_##fname] = { \ .name = #fname, \ @@ -1557,6 +1572,13 @@ static const struct msm_pingroup sc8180x_groups[] = { [193] = SDC_QDSD_PINGROUP(sdc2_data, 0x4b2000, 9, 0), }; +static const int sc8180x_acpi_reserved_gpios[] = { + 0, 1, 2, 3, + 47, 48, 49, 50, + 126, 127, 128, 129, + -1 /* terminator */ +}; + static const struct msm_gpio_wakeirq_map sc8180x_pdc_map[] = { { 3, 31 }, { 5, 32 }, { 8, 33 }, { 9, 34 }, { 10, 100 }, { 12, 104 }, { 24, 37 }, { 26, 38 }, { 27, 41 }, { 28, 42 }, { 30, 39 }, { 36, 43 }, @@ -1588,13 +1610,105 @@ static struct msm_pinctrl_soc_data sc8180x_pinctrl = { .nwakeirq_map = ARRAY_SIZE(sc8180x_pdc_map), }; +static const struct msm_pinctrl_soc_data sc8180x_acpi_pinctrl = { + .tiles = sc8180x_tiles, + .ntiles = ARRAY_SIZE(sc8180x_tiles), + .pins = sc8180x_pins, + .npins = ARRAY_SIZE(sc8180x_pins), + .groups = sc8180x_groups, + .ngroups = ARRAY_SIZE(sc8180x_groups), + .reserved_gpios = sc8180x_acpi_reserved_gpios, + .ngpios = 191, +}; + +static int sc8180x_pinctrl_add_tile_resources(struct platform_device *pdev) +{ + int nres_num = pdev->num_resources + ARRAY_SIZE(sc8180x_tiles) - 1; + struct resource *mres, *nres, *res; + int i, ret; + + /* + * DT already has tiles defined properly, so nothing needs to be done + * for DT probe. + */ + if (pdev->dev.of_node) + return 0; + + /* Allocate for new resources */ + nres = devm_kzalloc(&pdev->dev, sizeof(*nres) * nres_num, GFP_KERNEL); + if (!nres) + return -ENOMEM; + + res = nres; + + for (i = 0; i < pdev->num_resources; i++) { + struct resource *r = &pdev->resource[i]; + + /* Save memory resource and copy others */ + if (resource_type(r) == IORESOURCE_MEM) + mres = r; + else + *res++ = *r; + } + + /* Append tile memory resources */ + for (i = 0; i < ARRAY_SIZE(sc8180x_tiles); i++, res++) { + const struct tile_info *info = &sc8180x_tile_info[i]; + + res->start = mres->start + info->offset; + res->end = mres->start + info->offset + info->size - 1; + res->flags = mres->flags; + res->name = sc8180x_tiles[i]; + + /* Add new MEM to resource tree */ + insert_resource(mres->parent, res); + } + + /* Remove old MEM from resource tree */ + remove_resource(mres); + + /* Free old resources and install new ones */ + ret = platform_device_add_resources(pdev, nres, nres_num); + if (ret) { + dev_err(&pdev->dev, "failed to add new resources: %d\n", ret); + return ret; + } + + return 0; +} + static int sc8180x_pinctrl_probe(struct platform_device *pdev) { - return msm_pinctrl_probe(pdev, &sc8180x_pinctrl); + const struct msm_pinctrl_soc_data *soc_data; + int ret; + + soc_data = device_get_match_data(&pdev->dev); + if (!soc_data) + return -EINVAL; + + ret = sc8180x_pinctrl_add_tile_resources(pdev); + if (ret) { + dev_err(&pdev->dev, "failed to add tile resources: %d\n", ret); + return ret; + } + + return msm_pinctrl_probe(pdev, soc_data); } +static const struct acpi_device_id sc8180x_pinctrl_acpi_match[] = { + { + .id = "QCOM040D", + .driver_data = (kernel_ulong_t) &sc8180x_acpi_pinctrl, + }, + { } +}; +MODULE_DEVICE_TABLE(acpi, sc8180x_pinctrl_acpi_match); + static const struct of_device_id sc8180x_pinctrl_of_match[] = { - { .compatible = "qcom,sc8180x-tlmm", }, + { + .compatible = "qcom,sc8180x-tlmm", + .data = &sc8180x_pinctrl, + }, { }, }; MODULE_DEVICE_TABLE(of, sc8180x_pinctrl_of_match); @@ -1603,6 +1717,7 @@ static struct platform_driver sc8180x_pinctrl_driver = { .driver = { .name = "sc8180x-pinctrl", .of_match_table = sc8180x_pinctrl_of_match, + .acpi_match_table = sc8180x_pinctrl_acpi_match, }, .probe = sc8180x_pinctrl_probe, .remove = msm_pinctrl_remove,