From patchwork Wed May 24 16:23:27 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Robert Marko X-Patchwork-Id: 686044 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 85934C7EE2E for ; Wed, 24 May 2023 16:23:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234351AbjEXQXm (ORCPT ); Wed, 24 May 2023 12:23:42 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44272 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234659AbjEXQXi (ORCPT ); Wed, 24 May 2023 12:23:38 -0400 Received: from mail-ed1-x529.google.com (mail-ed1-x529.google.com [IPv6:2a00:1450:4864:20::529]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DAC3912F; Wed, 24 May 2023 09:23:34 -0700 (PDT) Received: by mail-ed1-x529.google.com with SMTP id 4fb4d7f45d1cf-510bcd2d6b8so31010a12.0; Wed, 24 May 2023 09:23:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1684945413; x=1687537413; 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=3/ycEJUTtAvi7GqgpK2zlFsLIGEJyRG8499TbrV7bF8=; b=AtJCedqw7nCCBMw/v9uxTNYD5Zg9FPuoDc4lUvqOiF4tI/xA5h/bg9eoiNEZF3zZZS NaNjRKQ5iiaCXB24tQ+xgnGgSvXsGDdGOzQgUoqqsN3WYanzIt7bpXbMofpXF+jZXWmn aLvCrfz3NYQ4k3jAZ8FizXMLfds2/V9DyFWTXP26a00qY2g9xa+vN43uzepu34uGml6C 6odowDAVKse38OmYmGXKaJy9djuJDZ0ftIUYg4jA69dVghto746pYwCIETg8rspSMqPU pGrNg6ycDX2SQGorD4NmWozexz7uAFKYVnqcBEV2lkqm7iriWF4/SeGGXj11rdTnUtAp RI9w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1684945413; x=1687537413; 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=3/ycEJUTtAvi7GqgpK2zlFsLIGEJyRG8499TbrV7bF8=; b=hn5i42675+4gL5QVx4vciS6yCqY1tkVOJ/HgLG2vn3Y8pBFQVkwnAXSseI0OkBdPLO LHS/rqJRK8PXgJWrZHyiUzrObPO1b/f9VVFHbyndXm5LTt4/WrT9IPEuxVwBCLNyfEf7 MHlYYcW+cY8kB5EMGE5Djnz2uJ6RYKW59SHui+1jgbKJAHWawj/BJTs42bakGQxqztyb g99/1AgkWOFd+mHetkWuePwFpOV8cscuK21tRYa1SmystNDTbmrOmP6+4NVaAuca9wyv GBsBpcrdVQYYYUc07uqvWGMuDFiFiIw+rxsCzh3A8AU5pvxO2RgC4nIuVDnWDMMXw/tu Rr3A== X-Gm-Message-State: AC+VfDzmfcBIwAhOjZM3RSX0Q5NXMPdZ0uhdlbCtDWwLrkCvSZOrYAJx kaGlHLSrNaO85+eLo7wzlvo= X-Google-Smtp-Source: ACHHUZ56ZChcvKAYIQXUlS6gupUgJPC8PLWKayRJD2ZiW+tGr59q4nQy/ARzZvkGOWkpBgfuvtotvQ== X-Received: by 2002:a17:907:d9f:b0:973:84b0:b077 with SMTP id go31-20020a1709070d9f00b0097384b0b077mr2792885ejc.33.1684945413244; Wed, 24 May 2023 09:23:33 -0700 (PDT) Received: from fedora.. ([213.149.38.146]) by smtp.googlemail.com with ESMTPSA id p19-20020a170906229300b0096f5b48fe43sm5913793eja.47.2023.05.24.09.23.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 24 May 2023 09:23:32 -0700 (PDT) From: Robert Marko To: agross@kernel.org, andersson@kernel.org, konrad.dybcio@linaro.org, ilia.lin@kernel.org, rafael@kernel.org, viresh.kumar@linaro.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-pm@vger.kernel.org Cc: ansuelsmth@gmail.com, Robert Marko Subject: [PATCH v2 2/4] soc: qcom: smem: introduce qcom_smem_get_msm_id() Date: Wed, 24 May 2023 18:23:27 +0200 Message-Id: <20230524162329.819770-2-robimarko@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230524162329.819770-1-robimarko@gmail.com> References: <20230524162329.819770-1-robimarko@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Introduce a helper to return the SoC SMEM ID, which is used to identify the exact SoC model as there may be differences in the same SoC family. Currently, cpufreq-nvmem does this completely in the driver and there has been more interest expresed for other drivers to use this information so lets expose a common helper to prevent redoing it in individual drivers since this field is present on every SMEM table version. Signed-off-by: Robert Marko --- drivers/soc/qcom/smem.c | 19 +++++++++++++++++++ include/linux/soc/qcom/smem.h | 2 ++ 2 files changed, 21 insertions(+) diff --git a/drivers/soc/qcom/smem.c b/drivers/soc/qcom/smem.c index 6be7ea93c78c..0d6ba9bce8cb 100644 --- a/drivers/soc/qcom/smem.c +++ b/drivers/soc/qcom/smem.c @@ -14,6 +14,7 @@ #include #include #include +#include /* * The Qualcomm shared memory system is a allocate only heap structure that @@ -772,6 +773,24 @@ phys_addr_t qcom_smem_virt_to_phys(void *p) } EXPORT_SYMBOL(qcom_smem_virt_to_phys); +/** + * qcom_smem_get_msm_id() - return the SoC ID + * + * Look up SoC ID from HW/SW build ID and return it. + */ +int qcom_smem_get_msm_id(void) +{ + size_t len; + struct socinfo *info; + + info = qcom_smem_get(QCOM_SMEM_HOST_ANY, SMEM_HW_SW_BUILD_ID, &len); + if (IS_ERR(info)) + return PTR_ERR(info); + + return __le32_to_cpu(info->id); +} +EXPORT_SYMBOL(qcom_smem_get_msm_id); + static int qcom_smem_get_sbl_version(struct qcom_smem *smem) { struct smem_header *header; diff --git a/include/linux/soc/qcom/smem.h b/include/linux/soc/qcom/smem.h index 86e1b358688a..6448607239e6 100644 --- a/include/linux/soc/qcom/smem.h +++ b/include/linux/soc/qcom/smem.h @@ -11,4 +11,6 @@ int qcom_smem_get_free_space(unsigned host); phys_addr_t qcom_smem_virt_to_phys(void *p); +int qcom_smem_get_msm_id(void); + #endif