From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx1.tq-group.com (mx1.tq-group.com [93.104.207.81]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4CC5118C3D for ; Fri, 3 May 2024 12:58:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=93.104.207.81 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714741113; cv=none; b=Z388OP8LWJ0oglT7kWVnrzmsNUegJRDUTlxD591AS91e0hJnM8vxuSCbnyXBWSPkvDGrh/NZhSKPSj5B/dhlImkKlqirQMe4esv2BSclhrK2hRpySkYbU2UzlUtwMue/aFV3ivvp+e4OW7o6GdTbp8lgyNHZcrfC2HTvSJktj9Y= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714741113; c=relaxed/simple; bh=YkNGtKSy5REbDya5MJjleMOscfr6ZOuhSMFpINPzqNU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=Mu9cdAK8avMmaZcMwN3fDG7WtE8gmuCs0LgqOmX5F5LFz/wJddG2+2L1A3nJraHXjXKVGIiztb49CjG3k8HHlc6dE9Chh1WQSMDVQzMxPYR7Qk9wS+Qrq9Qs7OklkDonaELnj/DJDVofd9HvwcTdrisz1JzwYvHOrz0iVGODUe0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=ew.tq-group.com; spf=pass smtp.mailfrom=ew.tq-group.com; dkim=pass (2048-bit key) header.d=tq-group.com header.i=@tq-group.com header.b=dU2Xri8i; dkim=fail (0-bit key) header.d=ew.tq-group.com header.i=@ew.tq-group.com header.b=jIQO3pMZ reason="key not found in DNS"; arc=none smtp.client-ip=93.104.207.81 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=ew.tq-group.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ew.tq-group.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=tq-group.com header.i=@tq-group.com header.b="dU2Xri8i"; dkim=fail reason="key not found in DNS" (0-bit key) header.d=ew.tq-group.com header.i=@ew.tq-group.com header.b="jIQO3pMZ" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tq-group.com; i=@tq-group.com; q=dns/txt; s=key1; t=1714741110; x=1746277110; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=VMoe7SYlALrfWi5S2dB+GJHXhcLLyVr0yLlsMrIAcus=; b=dU2Xri8ixewB35ca98WEN9WAvrLnWl0FXHVXPz1EFty3FLjnSP85GNsO lPiLxXVCYrE+FiYUnfm76dephadUPfT7mBSGnHhVM/TXhnFS8XEN7dLuO 5szk4A4GHIMXwmmCL50AFXBq9TvY0hSZPIJk9L1EdM2vx997maC+mU425 VlEL0+jSsLtVqUeFhJ3WpiS1UpyomIyiajmGsx5qTlKoHsFXnWEZbc7po clvoUg0/0RCF7Na/l+vU5xCm6uBxxBdv+mK7pwlsVXydym2uwh1D6TzaL mooKHPyALdlzuga9bBId8Jyf4dSZonZZc82SXJDUO4G3rb1WVtBMiIgY1 w==; X-IronPort-AV: E=Sophos;i="6.07,251,1708383600"; d="scan'208";a="36736105" Received: from vmailcow01.tq-net.de ([10.150.86.48]) by mx1.tq-group.com with ESMTP; 03 May 2024 14:58:21 +0200 Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with ESMTPSA id E854D173347; Fri, 3 May 2024 14:58:15 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ew.tq-group.com; s=dkim; t=1714741097; h=from:subject:date:message-id:to:cc:mime-version:content-type: content-transfer-encoding:in-reply-to:references; bh=VMoe7SYlALrfWi5S2dB+GJHXhcLLyVr0yLlsMrIAcus=; b=jIQO3pMZb8c00MezK1nZkV4/fjV+Ri8QgIKvKWYAuQ1yBoOnKyBUZ1Axolmy3EIsnY5ThQ GcP2eUCkmUs8eL7nJWlbXWMBtVkUsRTIrwhb/LyKjVnjzlcpAEqGJ5onwAcXHYn+oXNbSZ XHvercmx57IhmxwPisbVdIC+wT2f9pzZjVkBYCW9AqWAU24AeQ3X9rMX5kFvLvsdGNt61f eALqH0AA4/ki/f4v+wrz4nOBIwL/Y4X66r8uGOUxyjgK3rx0ApiJlNQ+gqxoBalEwZUWWe rOfkRF7HZ/AD+9tAyDjYrt/vUzrgVDHMWzP0Q9I26CwhQ25H6VjfO/jbD5MZPQ== From: Alexander Stein To: linux-arm-kernel@lists.infradead.org Cc: Marek Vasut , Conor Dooley , Fabio Estevam , Krzysztof Kozlowski , Laurent Pinchart , Paul Elder , Pengutronix Kernel Team , Rob Herring , Sascha Hauer , Shawn Guo , devicetree@vger.kernel.org, imx@lists.linux.dev, Marek Vasut Subject: Re: [PATCH v2] arm64: dts: imx8mp: Align both CSI2 pixel clock Date: Fri, 03 May 2024 14:58:19 +0200 Message-ID: <3311352.aeNJFYEL58@steina-w> Organization: TQ-Systems GmbH In-Reply-To: <2327389.ElGaqSPkdT@steina-w> References: <20240416141914.9375-1-marex@denx.de> <2327389.ElGaqSPkdT@steina-w> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="iso-8859-1" X-Last-TLS-Session-Version: TLSv1.3 Hi, Am Mittwoch, 17. April 2024, 11:12:04 CEST schrieb Alexander Stein: > Am Dienstag, 16. April 2024, 16:19:10 CEST schrieb Marek Vasut: > > Configure both CSI2 assigned-clock-rates the same way. > > There does not seem to be any reason for keeping the > > two CSI2 pixel clock set to different frequencies. > >=20 > > This also reduces first CSI2 clock from overdrive mode > > frequency which is 500 MHz down below the regular mode > > frequency of 400 MHz. > >=20 > > Signed-off-by: Marek Vasut >=20 > Apparently there is no difference when using imx415 (3840x2160) sensor. Just for the records: While this change does not affect imx415 (3840x2160) processing, reducing clock-frequency as well (v3) imx415 does not work. So I assume that for this image size a higher than default frequency is required. Best regards, Alexander > Reviewed-by: Alexander Stein >=20 > > --- > > Cc: Conor Dooley > > Cc: Fabio Estevam > > Cc: Krzysztof Kozlowski > > Cc: Laurent Pinchart > > Cc: Paul Elder > > Cc: Pengutronix Kernel Team > > Cc: Rob Herring > > Cc: Sascha Hauer > > Cc: Shawn Guo > > Cc: devicetree@vger.kernel.org > > Cc: imx@lists.linux.dev > > Cc: linux-arm-kernel@lists.infradead.org > > --- > > V2: Align both clock to 266 MHz and update commit message > > --- > > arch/arm64/boot/dts/freescale/imx8mp.dtsi | 2 +- > > 1 file changed, 1 insertion(+), 1 deletion(-) > >=20 > > diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boo= t/dts/freescale/imx8mp.dtsi > > index 1bb96e96639f2..7883f5c056f4e 100644 > > --- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi > > +++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi > > @@ -1667,7 +1667,7 @@ mipi_csi_0: csi@32e40000 { > > <&clk IMX8MP_CLK_MEDIA_MIPI_PHY1_REF>; > > assigned-clock-parents =3D <&clk IMX8MP_SYS_PLL2_1000M>, > > <&clk IMX8MP_CLK_24M>; > > - assigned-clock-rates =3D <500000000>; > > + assigned-clock-rates =3D <266000000>; > > power-domains =3D <&media_blk_ctrl IMX8MP_MEDIABLK_PD_MIPI_CSI2_1>; > > status =3D "disabled"; > > =20 > >=20 >=20 >=20 >=20 =2D-=20 TQ-Systems GmbH | M=FChlstra=DFe 2, Gut Delling | 82229 Seefeld, Germany Amtsgericht M=FCnchen, HRB 105018 Gesch=E4ftsf=FChrer: Detlef Schneider, R=FCdiger Stahl, Stefan Schneider http://www.tq-group.com/