From mboxrd@z Thu Jan 1 00:00:00 1970 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 77CCBC43217 for ; Thu, 1 Dec 2022 18:48:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230413AbiLASsU (ORCPT ); Thu, 1 Dec 2022 13:48:20 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44308 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230140AbiLASsS (ORCPT ); Thu, 1 Dec 2022 13:48:18 -0500 X-Greylist: delayed 1879 seconds by postgrey-1.37 at lindbergh.monkeyblade.net; Thu, 01 Dec 2022 10:48:16 PST Received: from mail.andi.de1.cc (mail.andi.de1.cc [IPv6:2a01:238:4321:8900:456f:ecd6:43e:202c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6000C532DC; Thu, 1 Dec 2022 10:48:16 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=kemnade.info; s=20220719; h=Content-Transfer-Encoding:MIME-Version: Message-Id:Date:Subject:To:From:Sender:Reply-To:Cc:Content-Type:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:In-Reply-To:References:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=eyZxP11TPKJBHc55O9hn51hFwkyobIyf/8zksyyPN3Y=; b=aDG7UD8HHwQzmGlOZh4R6PSWli UWxTCXMM6z2iNDmpMMJ2vPO8EsfthUOOY21oy5fMIxFp3Z7qegnO2UeczUXk2nt5TkVbLc69IISff yiCoG5PB43sYLhXl0CMGmKckXfxw4HQLM6cjKXgLNxocl9lOFYkLfwTaxz1VE8pvY3vQYvKsWeMHe BpeQ2cJaTi7gPHf+97pzB1ljtJcrRotf1LndgxuY+2AQADuvdVqLdNhs0lZtVCUIWeUHhZpaXSprl 9UOnF5MYZpX1nAe9WTFuep1ntCaU+eGCPGrenO1j+l30JgZGLpGua4rm/MVWS55q5/WQ4AhGFFAla /GhK8u9Q==; Received: from p200300ccff169a001a3da2fffebfd33a.dip0.t-ipconnect.de ([2003:cc:ff16:9a00:1a3d:a2ff:febf:d33a] helo=aktux) by mail.andi.de1.cc with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1p0o70-0008FX-Vp; Thu, 01 Dec 2022 19:16:43 +0100 Received: from andi by aktux with local (Exim 4.94.2) (envelope-from ) id 1p0o70-00EmUm-2K; Thu, 01 Dec 2022 19:16:42 +0100 From: Andreas Kemnade To: jic23@kernel.org, lars@metafoo.de, andreas@kemnade.info, jiasheng@iscas.ac.cn, paul@crapouillou.net, linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, Tony Lindgren Subject: [PATCH] iio:adc:twl6030: Enable measurements of VUSB, VBAT and others Date: Thu, 1 Dec 2022 19:16:35 +0100 Message-Id: <20221201181635.3522962-1-andreas@kemnade.info> X-Mailer: git-send-email 2.30.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Some inputs need to be wired up to produce proper measurements, without this change only near zero values are reported. Signed-off-by: Andreas Kemnade --- drivers/iio/adc/twl6030-gpadc.c | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) diff --git a/drivers/iio/adc/twl6030-gpadc.c b/drivers/iio/adc/twl6030-gpadc.c index f53e8558b560c..40438e5b49702 100644 --- a/drivers/iio/adc/twl6030-gpadc.c +++ b/drivers/iio/adc/twl6030-gpadc.c @@ -57,6 +57,18 @@ #define TWL6030_GPADCS BIT(1) #define TWL6030_GPADCR BIT(0) +#define USB_VBUS_CTRL_SET 0x04 +#define USB_ID_CTRL_SET 0x06 + +#define TWL6030_MISC1 0xE4 +#define VBUS_MEAS 0x01 +#define ID_MEAS 0x01 + +#define VAC_MEAS 0x04 +#define VBAT_MEAS 0x02 +#define BB_MEAS 0x01 + + /** * struct twl6030_chnl_calib - channel calibration * @gain: slope coefficient for ideal curve @@ -927,6 +939,26 @@ static int twl6030_gpadc_probe(struct platform_device *pdev) return ret; } + ret = twl_i2c_write_u8(TWL_MODULE_USB, VBUS_MEAS, USB_VBUS_CTRL_SET); + if (ret < 0) { + dev_err(dev, "failed to wire up inputs\n"); + return ret; + } + + ret = twl_i2c_write_u8(TWL_MODULE_USB, ID_MEAS, USB_ID_CTRL_SET); + if (ret < 0) { + dev_err(dev, "failed to wire up inputs\n"); + return ret; + } + + ret = twl_i2c_write_u8(TWL6030_MODULE_ID0, + VBAT_MEAS | BB_MEAS | BB_MEAS, + TWL6030_MISC1); + if (ret < 0) { + dev_err(dev, "failed to wire up inputs\n"); + return ret; + } + indio_dev->name = DRIVER_NAME; indio_dev->info = &twl6030_gpadc_iio_info; indio_dev->modes = INDIO_DIRECT_MODE; -- 2.30.2