From mboxrd@z Thu Jan 1 00:00:00 1970 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 6E008C43334 for ; Fri, 1 Jul 2022 08:23:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233824AbiGAIXK (ORCPT ); Fri, 1 Jul 2022 04:23:10 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49814 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235985AbiGAIW1 (ORCPT ); Fri, 1 Jul 2022 04:22:27 -0400 Received: from mail-pl1-x630.google.com (mail-pl1-x630.google.com [IPv6:2607:f8b0:4864:20::630]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B225F72ECB for ; Fri, 1 Jul 2022 01:21:43 -0700 (PDT) Received: by mail-pl1-x630.google.com with SMTP id r1so1693055plo.10 for ; Fri, 01 Jul 2022 01:21:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=MkV+K20z+SrLBFTmdhzZDzVO0y1dFuzDvpTTKeDqBqE=; b=yzdRH8X6v7XjVbWCRmhQya6HuMcF5QDs3XhGwV0qUuOVC7N9Vjw37/iNdrHs/HUQxV y74PcIn1/3l0cSSs8nvADtawNuwHVw24Tj5pE/Y5YZ/SrnAIiyn37VtRAcWc6F2VTdPH Og0S9HJ7/t0sSbyZOabJ8szydSfhBN26udvPspUSGWc7QC1l21GFd2nWHe4uU2zGABcy 0llFeMCk2bCaTiH50HqxyLUS9wHn05ko/MYu3aAaOjbdab2MHDn8azhy3W61Sn1Fk7xe itPeaif5tkizyseanEr7m+J/gTbum7xOL3kVh0NZeeo1JdU5dV1hpkdf8pt99F63mI9/ p9JQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=MkV+K20z+SrLBFTmdhzZDzVO0y1dFuzDvpTTKeDqBqE=; b=1QWkvdsqKV7IHNuxjOLXNivPuCEuP94SJcCsUt9jD4B/bePzyBsSTpWwDQl1I7wZz4 c8vemBfK+cY9Y74k1/cpLVKPYcCnt+PDAujcz6YsXcIkwiOCQ8TtOL8d0A7xDDH9GCnl LP0pXqUqHuqhxkUQ/uGhw8Ofv/HLGCKtsXSUGeaPIyO4xzwx0PV31s8i8uIqFs2kN43O 1+hupipylcTCPiyYBQ9ZAJDRPGdEdc58OXnytL8Wm1gsOc8x4ky5V8XcVHLRIBNR7koC w1TQlXeJ80vD38UohOunYGw/4lE96ZVosgz6hpGfPS3Sr2nDIKyHtXNmjPgoRe+mnSIL b+Kw== X-Gm-Message-State: AJIora+UKZu9bJlo9hLw6wbWNrydm+27324491Z3rA7vfKOe9OGK0yFU 3r9De8Xqk1XZVCnZv8FRaK90meJUFQasAA== X-Google-Smtp-Source: AGRyM1u79Bc2S58wPQPdFbJkDACJ+sZ7/b/+tANdARi2YjYY5IPeQwazkB2h7rZACs0vqq6yAt9e4Q== X-Received: by 2002:a17:902:db08:b0:16a:4b7e:af5f with SMTP id m8-20020a170902db0800b0016a4b7eaf5fmr19884988plx.143.1656663703361; Fri, 01 Jul 2022 01:21:43 -0700 (PDT) Received: from localhost ([122.172.201.58]) by smtp.gmail.com with ESMTPSA id j8-20020a17090a318800b001ed2fae2271sm3331446pjb.31.2022.07.01.01.21.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 01 Jul 2022 01:21:43 -0700 (PDT) From: Viresh Kumar To: Thierry Reding , Jonathan Hunter Cc: Viresh Kumar , linux-pm@vger.kernel.org, Vincent Guittot , "Rafael J. Wysocki" , Stephen Boyd , Nishanth Menon , Dmitry Osipenko , linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH V2 21/30] soc/tegra: Add comment over devm_pm_opp_set_clkname() Date: Fri, 1 Jul 2022 13:50:16 +0530 Message-Id: X-Mailer: git-send-email 2.31.1.272.g89b43f80a514 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Explain why special handling was required here, it isn't obvious at all. Tested-by: Dmitry Osipenko Signed-off-by: Viresh Kumar --- drivers/soc/tegra/common.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/soc/tegra/common.c b/drivers/soc/tegra/common.c index 32c346b72635..9f3fdeb1a11c 100644 --- a/drivers/soc/tegra/common.c +++ b/drivers/soc/tegra/common.c @@ -108,6 +108,13 @@ int devm_tegra_core_dev_init_opp_table(struct device *dev, u32 hw_version; int err; + /* + * For some devices we don't have any OPP table in the DT, and in order + * to use the same code path for all the devices, we create a dummy OPP + * table for them via this call. The dummy OPP table is only capable of + * doing clk_set_rate() on invocation of dev_pm_opp_set_rate() and + * doesn't provide any other functionality. + */ err = devm_pm_opp_set_clkname(dev, NULL); if (err) { dev_err(dev, "failed to set OPP clk: %d\n", err); -- 2.31.1.272.g89b43f80a514