From patchwork Tue Jan 24 02:32:23 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chen-Yu Tsai X-Patchwork-Id: 9533903 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 4CD97604A4 for ; Tue, 24 Jan 2017 02:35:04 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3E721201A4 for ; Tue, 24 Jan 2017 02:35:04 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 32DB7205AF; Tue, 24 Jan 2017 02:35:04 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.9 required=2.0 tests=BAYES_00 autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 9F3A720453 for ; Tue, 24 Jan 2017 02:35:03 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1cVqwl-0005Vp-40; Tue, 24 Jan 2017 02:34:59 +0000 Received: from mirror2.csie.ntu.edu.tw ([140.112.30.76] helo=wens.csie.org) by bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1cVqup-0003sI-35 for linux-arm-kernel@lists.infradead.org; Tue, 24 Jan 2017 02:33:00 +0000 Received: by wens.csie.org (Postfix, from userid 1000) id C23C75FC1A; Tue, 24 Jan 2017 10:32:32 +0800 (CST) From: Chen-Yu Tsai To: Maxime Ripard , Rob Herring , Mark Rutland , Michael Turquette , Stephen Boyd Subject: [PATCH 04/11] clk: sunxi-ng: Support separately grouped PLL lock status register Date: Tue, 24 Jan 2017 10:32:23 +0800 Message-Id: <20170124023230.3990-5-wens@csie.org> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170124023230.3990-1-wens@csie.org> References: <20170124023230.3990-1-wens@csie.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170123_183259_264842_90B2C61B X-CRM114-Status: UNSURE ( 9.63 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, linux-sunxi@googlegroups.com, linux-kernel@vger.kernel.org, Chen-Yu Tsai , linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP On the Allwinner A80 SoC, the PLL lock status indicators are grouped together in a separate register, as opposed to being scattered in each PLL's configuration register. Add a flag to support this. Signed-off-by: Chen-Yu Tsai --- drivers/clk/sunxi-ng/ccu_common.c | 8 ++++++-- drivers/clk/sunxi-ng/ccu_common.h | 2 ++ 2 files changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/clk/sunxi-ng/ccu_common.c b/drivers/clk/sunxi-ng/ccu_common.c index 51d4bac97ab3..3fd0c3331aff 100644 --- a/drivers/clk/sunxi-ng/ccu_common.c +++ b/drivers/clk/sunxi-ng/ccu_common.c @@ -25,13 +25,17 @@ static DEFINE_SPINLOCK(ccu_lock); void ccu_helper_wait_for_lock(struct ccu_common *common, u32 lock) { + void __iomem *addr; u32 reg; if (!lock) return; - WARN_ON(readl_relaxed_poll_timeout(common->base + common->reg, reg, - reg & lock, 100, 70000)); + addr = common->base + common->reg; + if (common->features & CCU_FEATURE_LOCK_REG) + addr = common->base + common->lock_reg; + + WARN_ON(readl_relaxed_poll_timeout(addr, reg, reg & lock, 100, 70000)); } int sunxi_ccu_probe(struct device_node *node, void __iomem *reg, diff --git a/drivers/clk/sunxi-ng/ccu_common.h b/drivers/clk/sunxi-ng/ccu_common.h index cdd69eb2e0b9..73d81dc58fc5 100644 --- a/drivers/clk/sunxi-ng/ccu_common.h +++ b/drivers/clk/sunxi-ng/ccu_common.h @@ -22,6 +22,7 @@ #define CCU_FEATURE_FIXED_PREDIV BIT(2) #define CCU_FEATURE_FIXED_POSTDIV BIT(3) #define CCU_FEATURE_ALL_PREDIV BIT(4) +#define CCU_FEATURE_LOCK_REG BIT(5) struct device_node; @@ -57,6 +58,7 @@ struct device_node; struct ccu_common { void __iomem *base; u16 reg; + u16 lock_reg; u32 prediv; unsigned long features;