From patchwork Tue May 23 13:53:46 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Rokosov X-Patchwork-Id: 13252296 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 D17A5C77B75 for ; Tue, 23 May 2023 13:54:24 +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=xxRv3+yScP9T4KeJ327yy02wwlvGXLf1AiHcKCJsPHg=; b=BdWlWmNWYmIVlh ITJ6q93LcnjmdZoBFoUy0NmzxnnKwCEygk4npLACebn0Qk9uQvL0g9GvBK4XVtHKCKjdzaOP7NHD1 3CNOQO+zI2QUhy9lDefFWr5qiO00wQUwxeA31T7PaaSEilqLWDm9ge7IjMlusZwZeCUpqTnSBVme3 0U50+hEGiXmTkZm1SmObzoAqqoxXJSlajGwsBazab4eB/Mbwq4H0EssawVcnvH8N7s9k0ryFbe4cb /OvKvqUtSc0wcK6pmEz/vp57UdMF4u3Q41WbeNlPd/OkzruGvREzX22UKT0LvQf1O4fUeL6PSncRg GOIvW2v0oohnVO3lLGxA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1q1SSq-00AQFs-0u; Tue, 23 May 2023 13:54:12 +0000 Received: from mx.sberdevices.ru ([45.89.227.171]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1q1SSm-00AQCk-0W; Tue, 23 May 2023 13:54:10 +0000 Received: from s-lin-edge02.sberdevices.ru (localhost [127.0.0.1]) by mx.sberdevices.ru (Postfix) with ESMTP id 479715FD65; Tue, 23 May 2023 16:54:02 +0300 (MSK) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sberdevices.ru; s=mail; t=1684850042; bh=qcIGKcZIb5cUrNAdB7ZZAIiITgzMPRGFSQuzjV413Y4=; h=From:To:Subject:Date:Message-ID:MIME-Version:Content-Type; b=GISDTv73zFtfRebTlG8zJm4c59zAOD5oaTHD9ca4uNEBiloa8vF+IeBEj+ZKT1D/a lZJW/8IK8SR0MU4u+6IOkC18fRqKM/GiQFU7rbuJyvcf8KJ4SZd7F8wG/RM2kwIb15 D9BpF468uDRmwH4RDnYguT4ogBwe+cWhXXjlgRhIFRarlA8xMp7jauUxwyRvUYGZyY r5bOGaxHN1hSnCqOITVqExIHHml2aVgFmuNF9f1Z0qmSjXc1gy8z/fkMDVGFGxC6+Y /+9Hq1+VZ5Kn6azQX1sJwnJI1YV1fwh9jHBHACKPBKNIBzmB/O9LGC896M+CLq0JhO 3hS73RAkPCoHw== Received: from S-MS-EXCH01.sberdevices.ru (S-MS-EXCH01.sberdevices.ru [172.16.1.4]) by mx.sberdevices.ru (Postfix) with ESMTP; Tue, 23 May 2023 16:54:02 +0300 (MSK) From: Dmitry Rokosov To: , , , , , , , CC: , , , , , , , , Dmitry Rokosov Subject: [PATCH v16 1/6] clk: meson: make pll rst bit as optional Date: Tue, 23 May 2023 16:53:46 +0300 Message-ID: <20230523135351.19133-2-ddrokosov@sberdevices.ru> X-Mailer: git-send-email 2.36.0 In-Reply-To: <20230523135351.19133-1-ddrokosov@sberdevices.ru> References: <20230523135351.19133-1-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: 2023/05/23 12:15:00 #21372692 X-KSMG-AntiVirus-Status: Clean, skipped X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230523_065408_936769_F19B0171 X-CRM114-Status: GOOD ( 13.32 ) 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 Compared with the previous SoCs, self-adaption current module is newly added for A1, and there is no reset parameter except the fixed pll. Since we use clk-pll generic driver for A1 pll implementation, rst bit should be optional to support new behavior. Signed-off-by: Jian Hu Acked-by: Martin Blumenstingl Signed-off-by: Dmitry Rokosov --- drivers/clk/meson/clk-pll.c | 24 +++++++++++++++++------- 1 file changed, 17 insertions(+), 7 deletions(-) diff --git a/drivers/clk/meson/clk-pll.c b/drivers/clk/meson/clk-pll.c index afefeba6e458..314ca945a4d0 100644 --- a/drivers/clk/meson/clk-pll.c +++ b/drivers/clk/meson/clk-pll.c @@ -295,10 +295,14 @@ static int meson_clk_pll_init(struct clk_hw *hw) struct meson_clk_pll_data *pll = meson_clk_pll_data(clk); if (pll->init_count) { - meson_parm_write(clk->map, &pll->rst, 1); + if (MESON_PARM_APPLICABLE(&pll->rst)) + meson_parm_write(clk->map, &pll->rst, 1); + regmap_multi_reg_write(clk->map, pll->init_regs, pll->init_count); - meson_parm_write(clk->map, &pll->rst, 0); + + if (MESON_PARM_APPLICABLE(&pll->rst)) + meson_parm_write(clk->map, &pll->rst, 0); } return 0; @@ -309,8 +313,11 @@ static int meson_clk_pll_is_enabled(struct clk_hw *hw) struct clk_regmap *clk = to_clk_regmap(hw); struct meson_clk_pll_data *pll = meson_clk_pll_data(clk); - if (meson_parm_read(clk->map, &pll->rst) || - !meson_parm_read(clk->map, &pll->en) || + if (MESON_PARM_APPLICABLE(&pll->rst) && + meson_parm_read(clk->map, &pll->rst)) + return 0; + + if (!meson_parm_read(clk->map, &pll->en) || !meson_parm_read(clk->map, &pll->l)) return 0; @@ -341,13 +348,15 @@ static int meson_clk_pll_enable(struct clk_hw *hw) return 0; /* Make sure the pll is in reset */ - meson_parm_write(clk->map, &pll->rst, 1); + if (MESON_PARM_APPLICABLE(&pll->rst)) + meson_parm_write(clk->map, &pll->rst, 1); /* Enable the pll */ meson_parm_write(clk->map, &pll->en, 1); /* Take the pll out reset */ - meson_parm_write(clk->map, &pll->rst, 0); + if (MESON_PARM_APPLICABLE(&pll->rst)) + meson_parm_write(clk->map, &pll->rst, 0); if (meson_clk_pll_wait_lock(hw)) return -EIO; @@ -361,7 +370,8 @@ static void meson_clk_pll_disable(struct clk_hw *hw) struct meson_clk_pll_data *pll = meson_clk_pll_data(clk); /* Put the pll is in reset */ - meson_parm_write(clk->map, &pll->rst, 1); + if (MESON_PARM_APPLICABLE(&pll->rst)) + meson_parm_write(clk->map, &pll->rst, 1); /* Disable the pll */ meson_parm_write(clk->map, &pll->en, 0);