From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out0.migadu.com (out0.migadu.com [94.23.1.103]) (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 423E5440F for ; Thu, 18 Aug 2022 13:47:34 +0000 (UTC) Date: Thu, 18 Aug 2022 15:47:23 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1660830445; 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: in-reply-to:in-reply-to:references:references; bh=F1nswzplSrCb6WdWfNGZKC3kGQ7z4tGMybBgtZBA4lw=; b=iAVvCdtlXCoLlg20/VMsS18eli0rvlcpjVyq3b1kG0LL2gYG8dHV5U/er4+edUu7Hb8Iak YZPFZvQZ+sltnxP8jUGFKJAOWroOYjv6/d3+ptCPJHS0Uw/dQrRZH1HOlTXFY+ssOzEQON BcYcFiJkgAtaZUcZiE0TTCzTvKaMSOw= X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Richard Leitner To: David Wolfson Cc: Shenwei Wang , "imx@lists.linux.dev" Subject: Re: [EXT] I2C_IMX support for i.MX8MP Message-ID: References: <20220818125404.GA45792@ubuntu> Precedence: bulk X-Mailing-List: imx@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220818125404.GA45792@ubuntu> X-Migadu-Flow: FLOW_OUT X-Migadu-Auth-User: linux.dev On Thu, Aug 18, 2022 at 07:54:04AM -0500, David Wolfson wrote: > On Thu, Aug 18, 2022 at 11:59:41AM +0000, Shenwei Wang wrote: > > Hi Richard, > > > > Nothing is hidden here. That is PAD control register, and should be documented in the IOMUXC and PIN Control section in the RM. > > > > Checking the IOMUX and PADs' settings is the first step when enabling > an interface. Sure, that's what I've done. Nonetheless the "8.2.4.280 SW_PAD_CTL_PAD_I2C3_SCL SW PAD Control Register (IOMUXC_SW_PAD_CTL_PAD_I2C3_SCL)" section in the IMX8MPRM says bit 30 is reserved. So does "8.2.4.128 SW_MUX_CTL_PAD_I2C3_SCL SW MUX Control Register (IOMUXC_SW_MUX_CTL_PAD_I2C3_SCL)". Maybe I'm just too dumb do find it... So it would be really helpful if you could please give a pointer where to find that documentation? Thanks & regards;rl > > David >