From patchwork Mon Jan 25 17:41:33 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lucas Stach X-Patchwork-Id: 12043825 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-17.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 097F7C433DB for ; Mon, 25 Jan 2021 17:43:46 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id B883522583 for ; Mon, 25 Jan 2021 17:43:45 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B883522583 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=pengutronix.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:To:From: Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender :Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=jUdpbwal1O/r/t8611kwFXocWN81kypq9uESNTtu7b4=; b=ESkeeBaSZEX9t4TfkNVf3vami3 P8p76JcEcn/yr2lmULah7MgzzM8RozwHzS1rZzSdAvfM1VBmtXU3BmC8/fSbMI45tKmgGkqtqm4E6 Ku/0qvQo8HI5rQUSUHhJ3/h687DMVS1ZfPq5g1R3eqaMp4Emsf7LpMccx9Hr1CpDCHery5D+EfcPo Esq84XFVshAyNJcWYWC3Bn2N6mEQKAM8BShc2tkl9gAH7eCWWkGR5Bc3KfhUn/wREVO6+77Yu0i8h wnkVCdDBAR2TWnb/8RyvRZxJn8Eg4s3GHCksfmv91gxTcvqMb4M0Jp3hMMkBOzxZZVzKZ8bQaBPEF 3mWiE9Pg==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1l45s4-00016N-FH; Mon, 25 Jan 2021 17:41:48 +0000 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1l45s1-00014V-8z for linux-arm-kernel@lists.infradead.org; Mon, 25 Jan 2021 17:41:46 +0000 Received: from [2a0a:edc0:0:1101:1d::39] (helo=dude03.red.stw.pengutronix.de) by metis.ext.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1l45rs-0007rj-GI; Mon, 25 Jan 2021 18:41:36 +0100 From: Lucas Stach To: Stephen Boyd , Shawn Guo , Michael Turquette Subject: [PATCH 1/3] clk: imx8mq: add PLL monitor output Date: Mon, 25 Jan 2021 18:41:33 +0100 Message-Id: <20210125174135.1223680-1-l.stach@pengutronix.de> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a0a:edc0:0:1101:1d::39 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-20210125_124145_335860_8CFE36CB X-CRM114-Status: GOOD ( 15.04 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peng Fan , Abel Vesa , patchwork-lst@pengutronix.de, NXP Linux Team , kernel@pengutronix.de, Fabio Estevam , linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The PLL monitor is mentioned as a debug feature in the reference manual, but there are some boards that use this clock output as a reference clock for board level components. Add support for those clocks in the clock driver, so this clock output can be used properly. Note that the VIDEO1, GPU and VPU mux inputs are rotated compared to the description in the reference manual. The order in this patch has been empirically validated. Signed-off-by: Lucas Stach Reviewed-by: Abel Vesa --- drivers/clk/imx/clk-imx8mq.c | 22 ++++++++++++++++++++++ include/dt-bindings/clock/imx8mq-clock.h | 16 +++++++++++++++- 2 files changed, 37 insertions(+), 1 deletion(-) diff --git a/drivers/clk/imx/clk-imx8mq.c b/drivers/clk/imx/clk-imx8mq.c index 779ea69e639c..4dd4ae9d022b 100644 --- a/drivers/clk/imx/clk-imx8mq.c +++ b/drivers/clk/imx/clk-imx8mq.c @@ -270,6 +270,14 @@ static const char * const imx8mq_clko1_sels[] = {"osc_25m", "sys1_pll_800m", "os static const char * const imx8mq_clko2_sels[] = {"osc_25m", "sys2_pll_200m", "sys1_pll_400m", "sys2_pll_166m", "sys3_pll_out", "audio_pll1_out", "video_pll1_out", "ckil", }; +static const char * const pllout_monitor_sels[] = {"osc_25m", "osc_27m", "dummy", "dummy", "ckil", + "audio_pll1_out_monitor", "audio_pll2_out_monitor", + "video_pll1_out_monitor", "gpu_pll_out_monitor", + "vpu_pll_out_monitor", "arm_pll_out_monitor", + "sys_pll1_out_monitor", "sys_pll2_out_monitor", + "sys_pll3_out_monitor", "dram_pll_out_monitor", + "video_pll2_out_monitor", }; + static struct clk_hw_onecell_data *clk_hw_data; static struct clk_hw **hws; @@ -399,6 +407,20 @@ static int imx8mq_clocks_probe(struct platform_device *pdev) hws[IMX8MQ_SYS2_PLL_500M] = imx_clk_hw_fixed_factor("sys2_pll_500m", "sys2_pll_500m_cg", 1, 2); hws[IMX8MQ_SYS2_PLL_1000M] = imx_clk_hw_fixed_factor("sys2_pll_1000m", "sys2_pll_1000m_cg", 1, 1); + hws[IMX8MQ_CLK_MON_AUDIO_PLL1_DIV] = imx_clk_hw_divider("audio_pll1_out_monitor", "audio_pll1_bypass", base + 0x78, 0, 3); + hws[IMX8MQ_CLK_MON_AUDIO_PLL2_DIV] = imx_clk_hw_divider("audio_pll2_out_monitor", "audio_pll2_bypass", base + 0x78, 4, 3); + hws[IMX8MQ_CLK_MON_VIDEO_PLL1_DIV] = imx_clk_hw_divider("video_pll1_out_monitor", "video_pll1_bypass", base + 0x78, 8, 3); + hws[IMX8MQ_CLK_MON_GPU_PLL_DIV] = imx_clk_hw_divider("gpu_pll_out_monitor", "gpu_pll_bypass", base + 0x78, 12, 3); + hws[IMX8MQ_CLK_MON_VPU_PLL_DIV] = imx_clk_hw_divider("vpu_pll_out_monitor", "vpu_pll_bypass", base + 0x78, 16, 3); + hws[IMX8MQ_CLK_MON_ARM_PLL_DIV] = imx_clk_hw_divider("arm_pll_out_monitor", "arm_pll_bypass", base + 0x78, 20, 3); + hws[IMX8MQ_CLK_MON_SYS_PLL1_DIV] = imx_clk_hw_divider("sys_pll1_out_monitor", "sys1_pll_out", base + 0x7c, 0, 3); + hws[IMX8MQ_CLK_MON_SYS_PLL2_DIV] = imx_clk_hw_divider("sys_pll2_out_monitor", "sys2_pll_out", base + 0x7c, 4, 3); + hws[IMX8MQ_CLK_MON_SYS_PLL3_DIV] = imx_clk_hw_divider("sys_pll3_out_monitor", "sys3_pll_out", base + 0x7c, 8, 3); + hws[IMX8MQ_CLK_MON_DRAM_PLL_DIV] = imx_clk_hw_divider("dram_pll_out_monitor", "dram_pll_out", base + 0x7c, 12, 3); + hws[IMX8MQ_CLK_MON_VIDEO_PLL2_DIV] = imx_clk_hw_divider("video_pll2_out_monitor", "video2_pll_out", base + 0x7c, 16, 3); + hws[IMX8MQ_CLK_MON_SEL] = imx_clk_hw_mux("pllout_monitor_sel", base + 0x74, 0, 4, pllout_monitor_sels, ARRAY_SIZE(pllout_monitor_sels)); + hws[IMX8MQ_CLK_MON_CLK2_OUT] = imx_clk_hw_gate("pllout_monitor_clk2", "pllout_monitor_sel", base + 0x74, 4); + np = dev->of_node; base = devm_platform_ioremap_resource(pdev, 0); if (WARN_ON(IS_ERR(base))) diff --git a/include/dt-bindings/clock/imx8mq-clock.h b/include/dt-bindings/clock/imx8mq-clock.h index 9b8045d75b8b..82e907ce7bdd 100644 --- a/include/dt-bindings/clock/imx8mq-clock.h +++ b/include/dt-bindings/clock/imx8mq-clock.h @@ -431,6 +431,20 @@ #define IMX8MQ_CLK_A53_CORE 289 -#define IMX8MQ_CLK_END 290 +#define IMX8MQ_CLK_MON_AUDIO_PLL1_DIV 290 +#define IMX8MQ_CLK_MON_AUDIO_PLL2_DIV 291 +#define IMX8MQ_CLK_MON_VIDEO_PLL1_DIV 292 +#define IMX8MQ_CLK_MON_GPU_PLL_DIV 293 +#define IMX8MQ_CLK_MON_VPU_PLL_DIV 294 +#define IMX8MQ_CLK_MON_ARM_PLL_DIV 295 +#define IMX8MQ_CLK_MON_SYS_PLL1_DIV 296 +#define IMX8MQ_CLK_MON_SYS_PLL2_DIV 297 +#define IMX8MQ_CLK_MON_SYS_PLL3_DIV 298 +#define IMX8MQ_CLK_MON_DRAM_PLL_DIV 299 +#define IMX8MQ_CLK_MON_VIDEO_PLL2_DIV 300 +#define IMX8MQ_CLK_MON_SEL 301 +#define IMX8MQ_CLK_MON_CLK2_OUT 302 + +#define IMX8MQ_CLK_END 303 #endif /* __DT_BINDINGS_CLOCK_IMX8MQ_H */