From patchwork Thu Nov 21 17:41:11 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Miquel Raynal X-Patchwork-Id: 13882222 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 262A9D743FD for ; Thu, 21 Nov 2024 17:41:43 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 7ADCB10EA07; Thu, 21 Nov 2024 17:41:42 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=bootlin.com header.i=@bootlin.com header.b="KwoxBPvC"; dkim-atps=neutral Received: from relay7-d.mail.gandi.net (relay7-d.mail.gandi.net [217.70.183.200]) by gabe.freedesktop.org (Postfix) with ESMTPS id 1586D10EA08 for ; Thu, 21 Nov 2024 17:41:38 +0000 (UTC) Received: by mail.gandi.net (Postfix) with ESMTPSA id B06972000C; Thu, 21 Nov 2024 17:41:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1732210897; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=HNSGIUDWKtHK2V3krzyRKB3CsE+LudVK/AtAMHaXQPM=; b=KwoxBPvC0Zrft6aR7f763oIRvd7CMINTpkCKQP/bHCyzyolyQ5scMkb+NAdB7DBIqOVf3u Xlz3JO4Wu29Ce5OBWtm1j8aMzum1QQQ6tmCz2blMejXb6VzQH8b5aVoFgeLG2OtB4DAYTv b4ldBapMLak5ZXgUDWFzMm6rhwlllZ0GY1J7NOF/ONOOOX5auLPJ0oY7llWLk6kC6V8KSc 8FQ5aUTIt8ouNKfTUAjx6M6otK8zTYlRYFrqVHYhu1UF4Oe7/Zkr717Dp1YXjZOQ8dH/kD 3jbvJcIzy3wSucOaOWnK/ywWQ5pJcTI74TZ+u4DV9UN+JGOKredQvaCh6C0F/A== From: Miquel Raynal Date: Thu, 21 Nov 2024 18:41:11 +0100 Subject: [PATCH 1/5] clk: imx: clk-imx8mp: Allow LDB serializer clock reconfigure parent rate MIME-Version: 1.0 Message-Id: <20241121-ge-ian-debug-imx8-clk-tree-v1-1-0f1b722588fe@bootlin.com> References: <20241121-ge-ian-debug-imx8-clk-tree-v1-0-0f1b722588fe@bootlin.com> In-Reply-To: <20241121-ge-ian-debug-imx8-clk-tree-v1-0-0f1b722588fe@bootlin.com> To: Abel Vesa , Peng Fan , Michael Turquette , Stephen Boyd , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , Ying Liu , Marek Vasut Cc: Laurent Pinchart , linux-clk@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Abel Vesa , Herve Codina , Luca Ceresoli , Thomas Petazzoni , Ian Ray , Miquel Raynal X-Mailer: b4 0.15-dev X-GND-Sasl: miquel.raynal@bootlin.com X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Marek Vasut The media_ldb_root_clk supply LDB serializer. These clock are usually shared with the LCDIFv3 pixel clock and supplied by the Video PLL on i.MX8MP, but the LDB clock run at either x7 or x14 rate of the LCDIFv3 pixel clock. Allow the LDB to reconfigure Video PLL as needed, as that results in accurate serializer clock. Signed-off-by: Marek Vasut Reviewed-by: Abel Vesa Signed-off-by: Miquel Raynal --- drivers/clk/imx/clk-imx8mp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/clk/imx/clk-imx8mp.c b/drivers/clk/imx/clk-imx8mp.c index 516dbd170c8a356f293621b371b9ef9b9bec90a4..2e61d340b8ab7f626155563c46e0d4142caf3fa9 100644 --- a/drivers/clk/imx/clk-imx8mp.c +++ b/drivers/clk/imx/clk-imx8mp.c @@ -611,7 +611,7 @@ static int imx8mp_clocks_probe(struct platform_device *pdev) hws[IMX8MP_CLK_MEDIA_MIPI_PHY1_REF] = imx8m_clk_hw_composite("media_mipi_phy1_ref", imx8mp_media_mipi_phy1_ref_sels, ccm_base + 0xbd80); hws[IMX8MP_CLK_MEDIA_DISP1_PIX] = imx8m_clk_hw_composite_bus_flags("media_disp1_pix", imx8mp_media_disp_pix_sels, ccm_base + 0xbe00, CLK_SET_RATE_PARENT); hws[IMX8MP_CLK_MEDIA_CAM2_PIX] = imx8m_clk_hw_composite("media_cam2_pix", imx8mp_media_cam2_pix_sels, ccm_base + 0xbe80); - hws[IMX8MP_CLK_MEDIA_LDB] = imx8m_clk_hw_composite("media_ldb", imx8mp_media_ldb_sels, ccm_base + 0xbf00); + hws[IMX8MP_CLK_MEDIA_LDB] = imx8m_clk_hw_composite_bus_flags("media_ldb", imx8mp_media_ldb_sels, ccm_base + 0xbf00, CLK_SET_RATE_PARENT); hws[IMX8MP_CLK_MEMREPAIR] = imx8m_clk_hw_composite_critical("mem_repair", imx8mp_memrepair_sels, ccm_base + 0xbf80); hws[IMX8MP_CLK_MEDIA_MIPI_TEST_BYTE] = imx8m_clk_hw_composite("media_mipi_test_byte", imx8mp_media_mipi_test_byte_sels, ccm_base + 0xc100); hws[IMX8MP_CLK_ECSPI3] = imx8m_clk_hw_composite("ecspi3", imx8mp_ecspi3_sels, ccm_base + 0xc180);