From patchwork Mon May 13 02:04:39 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marek Vasut X-Patchwork-Id: 13662970 Received: from phobos.denx.de (phobos.denx.de [85.214.62.61]) (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 5CF7C12DDA5 for ; Mon, 13 May 2024 02:05:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=85.214.62.61 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715565914; cv=none; b=PcB2q3nKt2R9QclxxKuFGrEDidTmxcZwWHwAfk1zr8+kbTOkEUdk+MlsqxR3iV0WxEEogZLq8sH2Zyut7o3zANvizeVwsAFfjzLGpJMrLrqeYDavS5uMB7+NOJBvBmWxtxvawEhax2DlDEoNrPd/nKzT2UiewbQAqsOAnKMjc7E= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715565914; c=relaxed/simple; bh=ZLr5UrARaHefDZc+uWzNJhmGH6xSykQ6ui4NwmEi9+o=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=N1FlZbZ6ptrN7oCdKWXCs6VTnMURKxC+ZX1NGYoyADkNhOkcI3krU4Y28yWm2UgiqxPYDpF0nZVYZjW3XcsLUataRoeoDQ61cmMSu1w7R/UuCY0OWDxNbXrf/ZaDs+gAbpa4ykmbkMTiCVlQOaRKaWylXg2Tf84SQUjrSQzsYD4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=denx.de; spf=pass smtp.mailfrom=denx.de; dkim=pass (2048-bit key) header.d=denx.de header.i=@denx.de header.b=k8azgD8e; arc=none smtp.client-ip=85.214.62.61 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=denx.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=denx.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=denx.de header.i=@denx.de header.b="k8azgD8e" Received: from tr.lan (ip-86-49-120-218.bb.vodafone.cz [86.49.120.218]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: marex@denx.de) by phobos.denx.de (Postfix) with ESMTPSA id CEEC488116; Mon, 13 May 2024 04:05:08 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=denx.de; s=phobos-20191101; t=1715565909; bh=tTs3SgAZz3M4fFgZyEds7/0nwHr1qmH1+Ulr0vH+QKw=; h=From:To:Cc:Subject:Date:From; b=k8azgD8eSZoUc1SdSYM9g1y5dF6b+iRM6I+W6gBbz3eE6lNa3CwaCHmQI2si+tjib AamXCwBphyApwW/3ghpyiPxc0juP6Slw9y5glS+1wl0MInTBspcV72E84hjhlORaNB bEoiuCRyLVLzoRsOZnkAZCUceXHeBtC3TP5WT4yCpVNuvcwv96w95ngM9asyA2PNYz +dPQb536hhcwpbPw93RVzZLlxXo86rE6gmfdOGGphrhWFlprPh68bo6bDks81K5Jv4 Xi9B50HT4Y8O52BNG2MozipE2CZkM6403i8od4Gd0ezFIivio6lWQlYiOSjChIe4JG xfRX1cn/uSBag== From: Marek Vasut To: linux-arm-kernel@lists.infradead.org Cc: Marek Vasut , Conor Dooley , Fabio Estevam , Krzysztof Kozlowski , Pengutronix Kernel Team , Rob Herring , Sascha Hauer , Shawn Guo , devicetree@vger.kernel.org, imx@lists.linux.dev, kernel@dh-electronics.com Subject: [PATCH] arm64: dts: imx8mp: Fix TC9595 input clock on DH i.MX8M Plus DHCOM SoM Date: Mon, 13 May 2024 04:04:39 +0200 Message-ID: <20240513020454.127584-1-marex@denx.de> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: imx@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Virus-Scanned: clamav-milter 0.103.8 at phobos.denx.de X-Virus-Status: Clean The IMX8MP_CLK_CLKOUT2 supplies the TC9595 bridge with 13 MHz reference clock. The IMX8MP_CLK_CLKOUT2 is supplied from IMX8MP_AUDIO_PLL2_OUT. The IMX8MP_CLK_CLKOUT2 operates only as a power-of-two divider, and the current 156 MHz is not power-of-two divisible to achieve 13 MHz. To achieve 13 MHz output from IMX8MP_CLK_CLKOUT2, set IMX8MP_AUDIO_PLL2_OUT to 208 MHz, because 208 MHz / 16 = 13 MHz. Fixes: 20d0b83e712b ("arm64: dts: imx8mp: Add TC9595 bridge on DH electronics i.MX8M Plus DHCOM") Signed-off-by: Marek Vasut --- Cc: Conor Dooley Cc: Fabio Estevam Cc: Krzysztof Kozlowski Cc: Pengutronix Kernel Team Cc: Rob Herring Cc: Sascha Hauer Cc: Shawn Guo Cc: devicetree@vger.kernel.org Cc: imx@lists.linux.dev Cc: kernel@dh-electronics.com Cc: linux-arm-kernel@lists.infradead.org --- arch/arm64/boot/dts/freescale/imx8mp-dhcom-som.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/freescale/imx8mp-dhcom-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mp-dhcom-som.dtsi index 882186d96f58b..4d30f74622a18 100644 --- a/arch/arm64/boot/dts/freescale/imx8mp-dhcom-som.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mp-dhcom-som.dtsi @@ -254,7 +254,7 @@ tc_bridge: bridge@f { <&clk IMX8MP_CLK_CLKOUT2>, <&clk IMX8MP_AUDIO_PLL2_OUT>; assigned-clock-parents = <&clk IMX8MP_AUDIO_PLL2_OUT>; - assigned-clock-rates = <13000000>, <13000000>, <156000000>; + assigned-clock-rates = <13000000>, <13000000>, <208000000>; reset-gpios = <&gpio4 1 GPIO_ACTIVE_HIGH>; status = "okay";