From patchwork Fri Oct 16 15:25:20 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Markus Pargmann X-Patchwork-Id: 7417111 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 AB82CBEEA4 for ; Fri, 16 Oct 2015 15:27:32 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id CDC3A20A75 for ; Fri, 16 Oct 2015 15:27:31 +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 0205E20A3E for ; Fri, 16 Oct 2015 15:27:31 +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 1Zn6tF-000541-Iu; Fri, 16 Oct 2015 15:25:53 +0000 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1Zn6tD-0004dY-HY for linux-arm-kernel@lists.infradead.org; Fri, 16 Oct 2015 15:25:52 +0000 Received: from dude.hi.pengutronix.de ([2001:67c:670:100:1d::7]) by metis.ext.pengutronix.de with esmtps (TLS1.2:RSA_AES_128_CBC_SHA1:128) (Exim 4.80) (envelope-from ) id 1Zn6sq-0007j8-PN; Fri, 16 Oct 2015 17:25:28 +0200 Received: from mpa by dude.hi.pengutronix.de with local (Exim 4.86) (envelope-from ) id 1Zn6sq-0000nw-1s; Fri, 16 Oct 2015 17:25:28 +0200 From: Markus Pargmann To: Shawn Guo Subject: [PATCH] clk: imx25: Remove osc clock from driver Date: Fri, 16 Oct 2015 17:25:20 +0200 Message-Id: <1445009120-2582-1-git-send-email-mpa@pengutronix.de> X-Mailer: git-send-email 2.6.1 X-SA-Exim-Connect-IP: 2001:67c:670:100:1d::7 X-SA-Exim-Mail-From: mpa@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-20151016_082551_777469_043FA5D4 X-CRM114-Status: GOOD ( 12.54 ) 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: Markus Pargmann , linux-arm-kernel@lists.infradead.org, Sascha Hauer 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, T_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 The 'osc' clock is already initialized by the fixed clock defined in imx25.dtsi. The imx25 clock driver tries to add this clock for a second time and fails with -EEXIST: i.MX clk 1: register failed with -17 As the clock is already properly setup in DT with a different driver, we can completely remove the handling in the imx25 clock driver. Signed-off-by: Markus Pargmann Reviewed-by: Lucas Stach --- drivers/clk/imx/clk-imx25.c | 19 +++---------------- 1 file changed, 3 insertions(+), 16 deletions(-) diff --git a/drivers/clk/imx/clk-imx25.c b/drivers/clk/imx/clk-imx25.c index ec1a4c1dacf1..33b5b7b29aa0 100644 --- a/drivers/clk/imx/clk-imx25.c +++ b/drivers/clk/imx/clk-imx25.c @@ -86,13 +86,12 @@ enum mx25_clks { static struct clk *clk[clk_max]; -static int __init __mx25_clocks_init(unsigned long osc_rate, - void __iomem *ccm_base) +static int __init __mx25_clocks_init(void __iomem *ccm_base) { BUG_ON(!ccm_base); clk[dummy] = imx_clk_fixed("dummy", 0); - clk[osc] = imx_clk_fixed("osc", osc_rate); + clk[osc] = NULL; clk[mpll] = imx_clk_pllv1(IMX_PLLV1_IMX25, "mpll", "osc", ccm(CCM_MPCTL)); clk[upll] = imx_clk_pllv1(IMX_PLLV1_IMX25, "upll", "osc", ccm(CCM_UPCTL)); clk[mpll_cpu_3_4] = imx_clk_fixed_factor("mpll_cpu_3_4", "mpll", 3, 4); @@ -238,22 +237,10 @@ static int __init __mx25_clocks_init(unsigned long osc_rate, static void __init mx25_clocks_init_dt(struct device_node *np) { - struct device_node *refnp; - unsigned long osc_rate = 24000000; void __iomem *ccm; - /* retrieve the freqency of fixed clocks from device tree */ - for_each_compatible_node(refnp, NULL, "fixed-clock") { - u32 rate; - if (of_property_read_u32(refnp, "clock-frequency", &rate)) - continue; - - if (of_device_is_compatible(refnp, "fsl,imx-osc")) - osc_rate = rate; - } - ccm = of_iomap(np, 0); - __mx25_clocks_init(osc_rate, ccm); + __mx25_clocks_init(ccm); clk_data.clks = clk; clk_data.clk_num = ARRAY_SIZE(clk);