From patchwork Wed Nov 6 08:58:02 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dario Binacchi X-Patchwork-Id: 13864160 Received: from mail-lf1-f42.google.com (mail-lf1-f42.google.com [209.85.167.42]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 654691D7E30 for ; Wed, 6 Nov 2024 09:06:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.167.42 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730883980; cv=none; b=gag8+vqQ+WRq3cnK75YjNN8sxcrdHqRNmu1k/2A8ldp4FUqZ+7fqK5a7u0LRywK1Fkrne9Df58LlLOw29DuDhfge7Dc/CQCUlWzTRFZkXyaq1Du1E4PCcaZRAcRf5xhomCzKOabNfQKaxppQ5h1+SFohYiVS9flBfRl0djZH61M= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730883980; c=relaxed/simple; bh=VHXKQi9VZmAgjKyf/s8nZ7wpCgJ6T8S6/7VeEB0Z6lU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=UHnQBfutcM3HEg99/a1kyk4//rDeg4ulTuQR8htESfn8sTwfcymZq5EDj/ZPCtmok3s41pPdl11KGOEIyrlcpbnp2egRJasj87NwgniWQNGzDIy/GWaKLZFZ7mFJv+cXjd2XDogOnirDdsMp93GDZDFy1yRZ0Ye9mFnl4qHrPIc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=amarulasolutions.com; spf=pass smtp.mailfrom=amarulasolutions.com; dkim=pass (1024-bit key) header.d=amarulasolutions.com header.i=@amarulasolutions.com header.b=gpkibwTh; arc=none smtp.client-ip=209.85.167.42 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=amarulasolutions.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=amarulasolutions.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=amarulasolutions.com header.i=@amarulasolutions.com header.b="gpkibwTh" Received: by mail-lf1-f42.google.com with SMTP id 2adb3069b0e04-539f2b95775so7503201e87.1 for ; Wed, 06 Nov 2024 01:06:18 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; t=1730883976; x=1731488776; darn=lists.linux.dev; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=Hk3reyPLNpPW1T5hBq9gLHNsgFGFKl4S7Oe3HhKsMOw=; b=gpkibwThQbFBHqbZS4aXLNV82GxmhaLayjIGvHy6eiwQIfwie/vCVaHSptmpx5RgMv c3Jm2JIqA/+tlRFEUhk2Nc+EZRNkIT47ZZY9LJhk2Fycg6rUJUWK8R+cMpBRSZkqbs52 cOkY6XFJlU2UEw0uIc8p/EcwLVFaDRJmRBl74= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1730883976; x=1731488776; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=Hk3reyPLNpPW1T5hBq9gLHNsgFGFKl4S7Oe3HhKsMOw=; b=iSweYiXVt5oTcX4iBgjGzv40HkHJ9AJQlJQ1UBa6Rkf5o8Lb0s2yz2LOMrirxUB0xM frDQ5li6vd+kWWwBaFKSy3GfISmDi44IIC+uRelXZRKiNnNgfhGUm1oI7D8K0/FgA7cE K59OXGHd/BxK9hAgG2gOvgejNlsUkPy59sjkSFb3k7JfJBv1erIWuk0SX4FzlpOv2OBg UoOdZRK8EWOlyUJGq6twT8r48SQIOVilJE4nM34UbVWvnWVio/cQJIlfkGCyYawl9PPx 4WlXxq1oMwEUCGoCBT/hK0BiSSEul9kE0HkCmfU//fpoE8u7BORAq95CbLpl/FuwCXaq /LmA== X-Forwarded-Encrypted: i=1; AJvYcCX9i9BjYxkLj720IOyoZVVzasUjWIyhwGZCCQcUlOM8np6bZWwp0SI/cmVypDwAIUPzn8E=@lists.linux.dev X-Gm-Message-State: AOJu0YyDqieapQEE/xR1j2BWBUXqRBIt3MbOnWoRzFnwZBoBcYV6ZrRN cK2RMIGmLNOhWQ1mmknVkIqtSXMhjXftAIM83DJapWP4CpDaJbE/mFTkA+l8jnQ= X-Google-Smtp-Source: AGHT+IFfiGc0K4IbypV9SvZMfMNxXdKGIpD8FKjB2HVHQBbxWo+3XOmyQxGHdE3l/c9HDP8UE/3JzA== X-Received: by 2002:a05:6512:159c:b0:539:8f3c:4586 with SMTP id 2adb3069b0e04-53d65e16881mr13255338e87.55.1730883976448; Wed, 06 Nov 2024 01:06:16 -0800 (PST) Received: from localhost.localdomain ([2001:b07:6474:ebbf:afb5:f524:6416:8e3]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-a9eb17f9422sm247781366b.139.2024.11.06.01.06.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 06 Nov 2024 01:06:16 -0800 (PST) From: Dario Binacchi To: linux-kernel@vger.kernel.org Cc: linux-amarula@amarulasolutions.com, Dario Binacchi , Abel Vesa , Fabio Estevam , Michael Turquette , Peng Fan , Pengutronix Kernel Team , Sascha Hauer , Shawn Guo , Stephen Boyd , imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-clk@vger.kernel.org Subject: [PATCH v3 6/8] clk: imx8mn: support spread spectrum clock generation Date: Wed, 6 Nov 2024 09:58:02 +0100 Message-ID: <20241106090549.3684963-7-dario.binacchi@amarulasolutions.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241106090549.3684963-1-dario.binacchi@amarulasolutions.com> References: <20241106090549.3684963-1-dario.binacchi@amarulasolutions.com> Precedence: bulk X-Mailing-List: imx@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 The patch adds support for spread spectrum clock generation for the audio, video, and DRAM PLLs. Signed-off-by: Dario Binacchi --- Changes in v3: - Use ccm node device drivers/clk/imx/clk-imx8mn.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/drivers/clk/imx/clk-imx8mn.c b/drivers/clk/imx/clk-imx8mn.c index feefc9ef4f51..91b819d1c523 100644 --- a/drivers/clk/imx/clk-imx8mn.c +++ b/drivers/clk/imx/clk-imx8mn.c @@ -322,6 +322,7 @@ static int imx8mn_clocks_probe(struct platform_device *pdev) struct device_node *np = dev->of_node; struct device_node *anatop_np; void __iomem *base, *anatop_base; + struct imx_pll14xx_ssc pll1443x_ssc; int ret; clk_hw_data = devm_kzalloc(dev, struct_size(clk_hw_data, hws, @@ -357,13 +358,18 @@ static int imx8mn_clocks_probe(struct platform_device *pdev) hws[IMX8MN_ARM_PLL_REF_SEL] = imx_clk_hw_mux("arm_pll_ref_sel", anatop_base + 0x84, 0, 2, pll_ref_sels, ARRAY_SIZE(pll_ref_sels)); hws[IMX8MN_SYS_PLL3_REF_SEL] = imx_clk_hw_mux("sys_pll3_ref_sel", anatop_base + 0x114, 0, 2, pll_ref_sels, ARRAY_SIZE(pll_ref_sels)); - hws[IMX8MN_AUDIO_PLL1] = imx_clk_hw_pll14xx("audio_pll1", "audio_pll1_ref_sel", anatop_base, &imx_1443x_pll); - hws[IMX8MN_AUDIO_PLL2] = imx_clk_hw_pll14xx("audio_pll2", "audio_pll2_ref_sel", anatop_base + 0x14, &imx_1443x_pll); - hws[IMX8MN_VIDEO_PLL] = imx_clk_hw_pll14xx("video_pll", "video_pll_ref_sel", anatop_base + 0x28, &imx_1443x_pll); - hws[IMX8MN_DRAM_PLL] = imx_clk_hw_pll14xx("dram_pll", "dram_pll_ref_sel", anatop_base + 0x50, &imx_1443x_dram_pll); + imx_clk_pll14xx_get_ssc_conf(np, IMX8MN_AUDIO_PLL1, &pll1443x_ssc); + hws[IMX8MN_AUDIO_PLL1] = imx_clk_hw_pll14xx_ssc("audio_pll1", "audio_pll1_ref_sel", anatop_base, &imx_1443x_pll, &pll1443x_ssc); + imx_clk_pll14xx_get_ssc_conf(np, IMX8MN_AUDIO_PLL2, &pll1443x_ssc); + hws[IMX8MN_AUDIO_PLL2] = imx_clk_hw_pll14xx_ssc("audio_pll2", "audio_pll2_ref_sel", anatop_base + 0x14, &imx_1443x_pll, &pll1443x_ssc); + imx_clk_pll14xx_get_ssc_conf(np, IMX8MN_VIDEO_PLL, &pll1443x_ssc); + hws[IMX8MN_VIDEO_PLL] = imx_clk_hw_pll14xx_ssc("video_pll", "video_pll_ref_sel", anatop_base + 0x28, &imx_1443x_pll, &pll1443x_ssc); + imx_clk_pll14xx_get_ssc_conf(np, IMX8MN_DRAM_PLL, &pll1443x_ssc); + hws[IMX8MN_DRAM_PLL] = imx_clk_hw_pll14xx_ssc("dram_pll", "dram_pll_ref_sel", anatop_base + 0x50, &imx_1443x_dram_pll, &pll1443x_ssc); hws[IMX8MN_GPU_PLL] = imx_clk_hw_pll14xx("gpu_pll", "gpu_pll_ref_sel", anatop_base + 0x64, &imx_1416x_pll); hws[IMX8MN_M7_ALT_PLL] = imx_clk_hw_pll14xx("m7_alt_pll", "m7_alt_pll_ref_sel", anatop_base + 0x74, &imx_1416x_pll); hws[IMX8MN_ARM_PLL] = imx_clk_hw_pll14xx("arm_pll", "arm_pll_ref_sel", anatop_base + 0x84, &imx_1416x_pll); + hws[IMX8MN_SYS_PLL1] = imx_clk_hw_fixed("sys_pll1", 800000000); hws[IMX8MN_SYS_PLL2] = imx_clk_hw_fixed("sys_pll2", 1000000000); hws[IMX8MN_SYS_PLL3] = imx_clk_hw_pll14xx("sys_pll3", "sys_pll3_ref_sel", anatop_base + 0x114, &imx_1416x_pll);