From patchwork Thu Dec 1 22:56:57 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Rokosov X-Patchwork-Id: 13061929 X-Patchwork-Delegate: neil.armstrong@linaro.org 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 54CE1C4332F for ; Thu, 1 Dec 2022 23:31:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=kb6duv0GBwjqF4YS3FKq0npHHZxxq6FdxVyr4YmqZ+4=; b=xmAdml/26Xyfl4 OTVFvbKsjyNmTEMdy+uO6frdRbRqcaLxOBzK1pyWNVD4YI672D9kSf8nv1d77tkjKuYCyTzF4fiur l+VsOG6zGeEkbi7EtTO4ATRBoeWZeuCQbSAMHJ3VARS8a6SymrAJ9iEmNliEtx1rXMfdfP6px8LRS 99CzC3ILGbGvXC8t25696G8MZYC0bpJe4M+3/+Ak59lsKzEi+IVgXfQlk/1iT010CTPaE60MvkFua DEJn7HjviKVSqIA81fvUGCwRW9GLD6VYfVAfFLYawfGOpGDe+UM8xC4iAn8++TQt8pden4C1zZQdN C9NxPBdvfsIYJOo4aWAw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1p0t1S-00Bhbf-5T; Thu, 01 Dec 2022 23:31:18 +0000 Received: from mx.sberdevices.ru ([45.89.227.171]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1p0sUy-00BSVQ-Fy; Thu, 01 Dec 2022 22:57:47 +0000 Received: from s-lin-edge02.sberdevices.ru (localhost [127.0.0.1]) by mx.sberdevices.ru (Postfix) with ESMTP id 1B0C85FD0E; Fri, 2 Dec 2022 01:57:32 +0300 (MSK) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sberdevices.ru; s=mail; t=1669935452; bh=XU1bxoWrykCIxVdFR9T9KlwOWfuXOxPytqzRPXwAy18=; h=From:To:Subject:Date:Message-ID:MIME-Version:Content-Type; b=ryfu3zlINlnEg5WtnhdYY0DhdKbMmieEI0hBQdTdjkPCeBQGMTCQbRzdCw+AZu06m QDiDgyC5NOf7a3jWRg1ENQGdvZIWexoDUcWWhqt0FeqRfEUTlgBHSGTKJDkhDLbitn b/ud1RDW3kZ13VMn1UxArrRtr/uQz/F7X5QvkaWn5bryeOPrrQh01iCBKDid4ul+l8 D4m6mT7WfYLYQ6vKaHOcGhHsJ0hPYZPdciLqQID7aBCpKC3wIBTUZGm82Ldp72ZQll xUVvBSvU3PDpZy6H44F/6Ay51Xq9aIin49Xh08FSJ331eJDqR1ALInjZt84MGePpna QlTzsFFVq4D6g== Received: from S-MS-EXCH01.sberdevices.ru (S-MS-EXCH01.sberdevices.ru [172.16.1.4]) by mx.sberdevices.ru (Postfix) with ESMTP; Fri, 2 Dec 2022 01:57:32 +0300 (MSK) From: Dmitry Rokosov To: , , , , , , , CC: , , , , , , , , Dmitry Rokosov Subject: [PATCH v8 05/11] clk: meson: pll: export meson_clk_pll_wait_lock symbol Date: Fri, 2 Dec 2022 01:56:57 +0300 Message-ID: <20221201225703.6507-6-ddrokosov@sberdevices.ru> X-Mailer: git-send-email 2.36.0 In-Reply-To: <20221201225703.6507-1-ddrokosov@sberdevices.ru> References: <20221201225703.6507-1-ddrokosov@sberdevices.ru> MIME-Version: 1.0 X-Originating-IP: [172.16.1.6] X-ClientProxiedBy: S-MS-EXCH02.sberdevices.ru (172.16.1.5) To S-MS-EXCH01.sberdevices.ru (172.16.1.4) X-KSMG-Rule-ID: 4 X-KSMG-Message-Action: clean X-KSMG-AntiSpam-Status: not scanned, disabled by settings X-KSMG-AntiSpam-Interceptor-Info: not scanned X-KSMG-AntiPhishing: not scanned, disabled by settings X-KSMG-AntiVirus: Kaspersky Secure Mail Gateway, version 1.1.2.30, bases: 2022/12/01 20:49:00 #20634374 X-KSMG-AntiVirus-Status: Clean, skipped X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221201_145744_979662_ABE35A07 X-CRM114-Status: GOOD ( 13.73 ) X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org Modern meson PLL IPs are a little bit different from early known PLLs. The main difference is located in the init/enable/disable sequences; the rate logic is the same. So drivers for the new PLLs can be inherited from the clk-pll driver and redefine init/enable/disable routines only. For that purpose we need to have meson_clk_pll_wait_lock() in the export symbols list, because each lock operation should be ended with wait cycles. Signed-off-by: Dmitry Rokosov --- drivers/clk/meson/clk-pll.c | 3 ++- drivers/clk/meson/clk-pll.h | 2 ++ 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/clk/meson/clk-pll.c b/drivers/clk/meson/clk-pll.c index 9e55617bc3b4..81c810d57a48 100644 --- a/drivers/clk/meson/clk-pll.c +++ b/drivers/clk/meson/clk-pll.c @@ -273,7 +273,7 @@ static int meson_clk_pll_determine_rate(struct clk_hw *hw, return 0; } -static int meson_clk_pll_wait_lock(struct clk_hw *hw) +int meson_clk_pll_wait_lock(struct clk_hw *hw) { struct clk_regmap *clk = to_clk_regmap(hw); struct meson_clk_pll_data *pll = meson_clk_pll_data(clk); @@ -289,6 +289,7 @@ static int meson_clk_pll_wait_lock(struct clk_hw *hw) return -ETIMEDOUT; } +EXPORT_SYMBOL_GPL(meson_clk_pll_wait_lock); static int meson_clk_pll_init(struct clk_hw *hw) { diff --git a/drivers/clk/meson/clk-pll.h b/drivers/clk/meson/clk-pll.h index 367efd0f6410..85fec18c4b8a 100644 --- a/drivers/clk/meson/clk-pll.h +++ b/drivers/clk/meson/clk-pll.h @@ -47,4 +47,6 @@ extern const struct clk_ops meson_clk_pll_ro_ops; extern const struct clk_ops meson_clk_pll_ops; extern const struct clk_ops meson_clk_pcie_pll_ops; +int meson_clk_pll_wait_lock(struct clk_hw *hw); + #endif /* __MESON_CLK_PLL_H */