From patchwork Tue Dec 23 10:02:06 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Liu Ying X-Patchwork-Id: 5532021 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id C7D709F30B for ; Tue, 23 Dec 2014 10:05:26 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 052182017D for ; Tue, 23 Dec 2014 10:05:26 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 3A24F200F0 for ; Tue, 23 Dec 2014 10:05:24 +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 1Y3MIa-0004zV-5X; Tue, 23 Dec 2014 10:02:40 +0000 Received: from mail-bn1on0140.outbound.protection.outlook.com ([157.56.110.140] helo=na01-bn1-obe.outbound.protection.outlook.com) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1Y3MFA-0001o0-RL for linux-arm-kernel@lists.infradead.org; Tue, 23 Dec 2014 09:59:10 +0000 Received: from CO2PR03CA0037.namprd03.prod.outlook.com (10.141.194.164) by DM2PR0301MB0638.namprd03.prod.outlook.com (25.160.96.12) with Microsoft SMTP Server (TLS) id 15.1.49.12; Tue, 23 Dec 2014 09:58:46 +0000 Received: from BN1AFFO11FD015.protection.gbl (2a01:111:f400:7c10::112) by CO2PR03CA0037.outlook.office365.com (2a01:111:e400:1414::36) with Microsoft SMTP Server (TLS) id 15.1.36.23 via Frontend Transport; Tue, 23 Dec 2014 09:58:45 +0000 Received: from tx30smr01.am.freescale.net (192.88.168.50) by BN1AFFO11FD015.mail.protection.outlook.com (10.58.52.75) with Microsoft SMTP Server (TLS) id 15.1.49.13 via Frontend Transport; Tue, 23 Dec 2014 09:58:45 +0000 Received: from victor.ap.freescale.net (victor.ap.freescale.net [10.192.241.62]) by tx30smr01.am.freescale.net (8.14.3/8.14.0) with ESMTP id sBN9w2Fb000700; Tue, 23 Dec 2014 02:58:40 -0700 From: Liu Ying To: Subject: [PATCH RFC v4 08/21] ARM: imx6q: clk: Add support for mipi_core_cfg clock as a shared clock gate Date: Tue, 23 Dec 2014 18:02:06 +0800 Message-ID: <1419328939-22758-9-git-send-email-Ying.Liu@freescale.com> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1419328939-22758-1-git-send-email-Ying.Liu@freescale.com> References: <1419328939-22758-1-git-send-email-Ying.Liu@freescale.com> X-EOPAttributedMessage: 0 Received-SPF: Fail (protection.outlook.com: domain of freescale.com does not designate 192.88.168.50 as permitted sender) receiver=protection.outlook.com; client-ip=192.88.168.50; helo=tx30smr01.am.freescale.net; Authentication-Results: spf=fail (sender IP is 192.88.168.50) smtp.mailfrom=Ying.Liu@freescale.com; X-Forefront-Antispam-Report: CIP:192.88.168.50; CTRY:US; IPV:NLI; EFV:NLI; SFV:NSPM; SFS:(10019020)(6009001)(339900001)(189002)(199003)(50466002)(99396003)(21056001)(2950100001)(64706001)(62966003)(19580395003)(120916001)(50986999)(89996001)(77156002)(85426001)(48376002)(87936001)(46102003)(47776003)(4396001)(68736005)(50226001)(77096005)(105606002)(84676001)(31966008)(110136001)(6806004)(76176999)(104016003)(92566001)(97736003)(2351001)(229853001)(106466001)(20776003)(86362001)(19580405001)(107046002)(36756003)(32563001)(217873001); DIR:OUT; SFP:1102; SCL:1; SRVR:DM2PR0301MB0638; H:tx30smr01.am.freescale.net; FPR:; SPF:Fail; MLV:sfv; PTR:InfoDomainNonexistent; MX:1; A:1; LANG:en; MIME-Version: 1.0 X-Microsoft-Antispam: UriScan:; X-Microsoft-Antispam: BCL:0;PCL:0;RULEID:;SRVR:DM2PR0301MB0638; X-Exchange-Antispam-Report-Test: UriScan:; X-Exchange-Antispam-Report-CFA-Test: BCL:0; PCL:0; RULEID:(601004); SRVR:DM2PR0301MB0638; X-Forefront-PRVS: 04347F8039 X-Exchange-Antispam-Report-CFA-Test: BCL:0; PCL:0; RULEID:; SRVR:DM2PR0301MB0638; X-OriginatorOrg: freescale.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 23 Dec 2014 09:58:45.0059 (UTC) X-MS-Exchange-CrossTenant-Id: 710a03f5-10f6-4d38-9ff4-a80b81da590d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=710a03f5-10f6-4d38-9ff4-a80b81da590d; Ip=[192.88.168.50] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM2PR0301MB0638 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20141223_015909_134199_D11FF8E9 X-CRM114-Status: UNSURE ( 8.51 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -0.3 (/) Cc: stefan.wahren@i2se.com, devicetree@vger.kernel.org, linux@arm.linux.org.uk, kernel@pengutronix.de, airlied@linux.ie, linux-kernel@vger.kernel.org, thierry.reding@gmail.com, p.zabel@pengutronix.de, mturquette@linaro.org, shawn.guo@linaro.org, linux-arm-kernel@lists.infradead.org, andyshrk@gmail.com X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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 CG8 field of the CCM CCGR3 register is named as 'mipi_core_cfg' clock, according to the i.MX6q/sdl reference manuals. This clock is actually the gate for several clocks, including the hsi_tx_sel clock's output and the video_27m clock's output. The MIPI DSI host controller embedded in the i.MX6q/sdl SoCs uses the video_27m clock to generate PLL reference clock and MIPI core configuration clock. In order to gate/ungate the two MIPI DSI host controller relevant clocks, this patch adds the mipi_core_cfg clock as a shared clock gate. Suggested-by: Philipp Zabel Signed-off-by: Liu Ying --- v3->v4: * None. v2->v3: * Newly introduced in v3. arch/arm/mach-imx/clk-imx6q.c | 1 + include/dt-bindings/clock/imx6qdl-clock.h | 3 ++- 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/arm/mach-imx/clk-imx6q.c b/arch/arm/mach-imx/clk-imx6q.c index 080d5b7..9815d8d 100644 --- a/arch/arm/mach-imx/clk-imx6q.c +++ b/arch/arm/mach-imx/clk-imx6q.c @@ -418,6 +418,7 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node) clk[IMX6QDL_CLK_LDB_DI1] = imx_clk_gate2("ldb_di1", "ldb_di1_podf", base + 0x74, 14); clk[IMX6QDL_CLK_IPU2_DI1] = imx_clk_gate2("ipu2_di1", "ipu2_di1_sel", base + 0x74, 10); clk[IMX6QDL_CLK_HSI_TX] = imx_clk_gate2_shared("hsi_tx", "hsi_tx_podf", base + 0x74, 16, &share_count_mipi_core_cfg); + clk[IMX6QDL_CLK_MIPI_CORE_CFG]= imx_clk_gate2_shared("mipi_core_cfg","video_27m", base + 0x74, 16, &share_count_mipi_core_cfg); if (cpu_is_imx6dl()) /* * The multiplexer and divider of the imx6q clock gpu2d get diff --git a/include/dt-bindings/clock/imx6qdl-clock.h b/include/dt-bindings/clock/imx6qdl-clock.h index 25625bf..dbc828c 100644 --- a/include/dt-bindings/clock/imx6qdl-clock.h +++ b/include/dt-bindings/clock/imx6qdl-clock.h @@ -249,6 +249,7 @@ #define IMX6QDL_PLL7_BYPASS 236 #define IMX6QDL_CLK_GPT_3M 237 #define IMX6QDL_CLK_VIDEO_27M 238 -#define IMX6QDL_CLK_END 239 +#define IMX6QDL_CLK_MIPI_CORE_CFG 239 +#define IMX6QDL_CLK_END 240 #endif /* __DT_BINDINGS_CLOCK_IMX6QDL_H */