From patchwork Fri Sep 4 16:00:19 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lucas Stach X-Patchwork-Id: 7124241 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id D6C4FBEEC1 for ; Fri, 4 Sep 2015 16:03:54 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 0990620890 for ; Fri, 4 Sep 2015 16:03:54 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id D963E2089C for ; Fri, 4 Sep 2015 16:03:52 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZXtR5-0003OK-8G; Fri, 04 Sep 2015 16:01:55 +0000 Received: from merlin.infradead.org ([2001:4978:20e::2]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZXtQ8-0002cg-84 for linux-arm-kernel@bombadil.infradead.org; Fri, 04 Sep 2015 16:00:56 +0000 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by merlin.infradead.org with esmtps (Exim 4.85 #2 (Red Hat Linux)) id 1ZXtQ5-0002P8-Fd for linux-arm-kernel@lists.infradead.org; Fri, 04 Sep 2015 16:00:55 +0000 Received: from dude.hi.4.pengutronix.de ([10.1.0.7] helo=dude.pengutronix.de.) by metis.ext.pengutronix.de with esmtp (Exim 4.80) (envelope-from ) id 1ZXtPc-0005Z8-Ls; Fri, 04 Sep 2015 18:00:24 +0200 From: Lucas Stach To: Shawn Guo Subject: [PATCH v2 8/8] clk: imx7d: retain early UART clocks during kernel init Date: Fri, 4 Sep 2015 18:00:19 +0200 Message-Id: <1441382419-4343-9-git-send-email-l.stach@pengutronix.de> X-Mailer: git-send-email 2.5.0 In-Reply-To: <1441382419-4343-1-git-send-email-l.stach@pengutronix.de> References: <1441382419-4343-1-git-send-email-l.stach@pengutronix.de> X-SA-Exim-Connect-IP: 10.1.0.7 X-SA-Exim-Mail-From: l.stach@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-arm-kernel@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20150904_120053_918133_09B27813 X-CRM114-Status: GOOD ( 11.95 ) X-Spam-Score: -1.9 (-) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Michael Turquette , Stephen Boyd , patchwork-lst@pengutronix.de, kernel@pengutronix.de, 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-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Make sure to keep UART clocks enabled during kernel init if earlyprintk or earlycon are active. Signed-off-by: Lucas Stach --- drivers/clk/imx/clk-imx7d.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/clk/imx/clk-imx7d.c b/drivers/clk/imx/clk-imx7d.c index 71f3a94b472c..2cc31b47209b 100644 --- a/drivers/clk/imx/clk-imx7d.c +++ b/drivers/clk/imx/clk-imx7d.c @@ -363,6 +363,15 @@ static const char *pll_video_bypass_sel[] = { "pll_video_main", "pll_video_main_ static struct clk_onecell_data clk_data; +static struct clk **uart_clks[] __initdata = { &clks[IMX7D_UART1_ROOT_CLK], + &clks[IMX7D_UART2_ROOT_CLK], + &clks[IMX7D_UART3_ROOT_CLK], + &clks[IMX7D_UART4_ROOT_CLK], + &clks[IMX7D_UART5_ROOT_CLK], + &clks[IMX7D_UART6_ROOT_CLK], + &clks[IMX7D_UART7_ROOT_CLK], + NULL }; + static void __init imx7d_clocks_init(struct device_node *ccm_node) { struct device_node *np; @@ -856,5 +865,7 @@ static void __init imx7d_clocks_init(struct device_node *ccm_node) /* set uart module clock's parent clock source that must be great then 80MHz */ clk_set_parent(clks[IMX7D_UART1_ROOT_SRC], clks[IMX7D_OSC_24M_CLK]); + imx_register_uart_clocks(uart_clks); + } CLK_OF_DECLARE(imx7d, "fsl,imx7d-ccm", imx7d_clocks_init);