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 5B6FCC001B0 for ; Sat, 15 Jul 2023 11:07:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230263AbjGOLHL (ORCPT ); Sat, 15 Jul 2023 07:07:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45264 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229639AbjGOLHK (ORCPT ); Sat, 15 Jul 2023 07:07:10 -0400 Received: from mx1.sberdevices.ru (mx1.sberdevices.ru [37.18.73.165]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EEFA1269D; Sat, 15 Jul 2023 04:07:06 -0700 (PDT) Received: from p-infra-ksmg-sc-msk01 (localhost [127.0.0.1]) by mx1.sberdevices.ru (Postfix) with ESMTP id 45C82100009; Sat, 15 Jul 2023 14:07:03 +0300 (MSK) DKIM-Filter: OpenDKIM Filter v2.11.0 mx1.sberdevices.ru 45C82100009 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sberdevices.ru; s=mail; t=1689419223; bh=dZOh2J+PejsEqvr9CEyYrAsUac8NNrLT8A1ago5/XVo=; h=From:To:Subject:Date:Message-ID:MIME-Version:Content-Type:From; b=L254plI7N+aHYEHu1aptAhg3pCJmrU35E7F27SK1G8PLwgqDhPlpeD2mNOCo1jAnA N/4ySi56FUGA+FlEXlxf7UAHlKithRa2IXnwl3uo9OJDDIHhUUG+yXXHYF5fq45CI0 DN3z1DYUv+0Xm507TZwHNjHEvGU8rFhrbWO4xLv3r69guwKlG//PqAvVidtGUADaoW sjSFmzE2B/gOkGy4hodhUeeJwWxKMStWZRRuP5w17r4UQ2aXAkCiATYAE6vojRwwwG IhZ4y2WP/Il7cSncXP4KoWUWAv3h/NmN5PCBqb+WclbaFF9Ec2306S0cuaaQtAMmvg IUPCgaWoZMJ4A== Received: from p-i-exch-sc-m01.sberdevices.ru (p-i-exch-sc-m01.sberdevices.ru [172.16.192.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.sberdevices.ru (Postfix) with ESMTPS; Sat, 15 Jul 2023 14:07:03 +0300 (MSK) Received: from localhost.localdomain (100.64.160.123) by p-i-exch-sc-m01.sberdevices.ru (172.16.192.107) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.30; Sat, 15 Jul 2023 14:06:23 +0300 From: George Stark To: , , , , , , , , CC: , , , , Subject: [PATCH v1 2/3] iio: adc: meson: init internal continuous ring counter Date: Sat, 15 Jul 2023 14:05:59 +0300 Message-ID: <20230715110654.6035-3-gnstark@sberdevices.ru> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230715110654.6035-1-gnstark@sberdevices.ru> References: <20230715110654.6035-1-gnstark@sberdevices.ru> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [100.64.160.123] X-ClientProxiedBy: p-i-exch-sc-m02.sberdevices.ru (172.16.192.103) To p-i-exch-sc-m01.sberdevices.ru (172.16.192.107) X-KSMG-Rule-ID: 10 X-KSMG-Message-Action: clean X-KSMG-AntiSpam-Lua-Profiles: 178635 [Jul 15 2023] X-KSMG-AntiSpam-Version: 5.9.59.0 X-KSMG-AntiSpam-Envelope-From: GNStark@sberdevices.ru X-KSMG-AntiSpam-Rate: 0 X-KSMG-AntiSpam-Status: not_detected X-KSMG-AntiSpam-Method: none X-KSMG-AntiSpam-Auth: dkim=none X-KSMG-AntiSpam-Info: LuaCore: 523 523 523027ce26ed1d9067f7a52a4756a876e54db27c, {Tracking_from_domain_doesnt_match_to}, sberdevices.ru:5.0.1,7.1.1;100.64.160.123:7.1.2;127.0.0.199:7.1.2;d41d8cd98f00b204e9800998ecf8427e.com:7.1.1;p-i-exch-sc-m01.sberdevices.ru:5.0.1,7.1.1, FromAlignment: s, {Tracking_white_helo}, ApMailHostAddress: 100.64.160.123 X-MS-Exchange-Organization-SCL: -1 X-KSMG-AntiSpam-Interceptor-Info: scan successful X-KSMG-AntiPhishing: Clean X-KSMG-LinksScanning: Clean X-KSMG-AntiVirus: Kaspersky Secure Mail Gateway, version 2.0.1.6960, bases: 2023/07/15 07:52:00 #21618415 X-KSMG-AntiVirus-Status: Clean, skipped Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org Disable internal continuous ring counter at init stage. Disable value depends on SoC family: gxl and later SoCs write 1, others write 0. This bit are inited in vendor boot code (bl2, bl33) already so do it in the driver to not depend on other code. Signed-off-by: George Stark --- drivers/iio/adc/meson_saradc.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/iio/adc/meson_saradc.c b/drivers/iio/adc/meson_saradc.c index 524e5569381e..806ba7cd7320 100644 --- a/drivers/iio/adc/meson_saradc.c +++ b/drivers/iio/adc/meson_saradc.c @@ -313,6 +313,7 @@ struct meson_sar_adc_param { u8 temperature_trimming_bits; unsigned int temperature_multiplier; unsigned int temperature_divider; + u8 disable_ring_counter; }; struct meson_sar_adc_data { @@ -967,6 +968,12 @@ static int meson_sar_adc_init(struct iio_dev *indio_dev) MESON_SAR_ADC_DELTA_10_TS_REVE0, 0); } + regval = FIELD_PREP(MESON_SAR_ADC_REG3_CTRL_CONT_RING_COUNTER_EN, + priv->param->disable_ring_counter); + regmap_update_bits(priv->regmap, MESON_SAR_ADC_REG3, + MESON_SAR_ADC_REG3_CTRL_CONT_RING_COUNTER_EN, + regval); + ret = clk_set_parent(priv->adc_sel_clk, priv->clkin); if (ret) return dev_err_probe(dev, ret, "failed to set adc parent to clkin\n"); @@ -1196,6 +1203,7 @@ static const struct meson_sar_adc_param meson_sar_adc_gxl_param = { .bandgap_reg = MESON_SAR_ADC_REG11, .regmap_config = &meson_sar_adc_regmap_config_gxbb, .resolution = 12, + .disable_ring_counter = 1, }; static const struct meson_sar_adc_param meson_sar_adc_g12a_param = { @@ -1204,6 +1212,7 @@ static const struct meson_sar_adc_param meson_sar_adc_g12a_param = { .bandgap_reg = MESON_SAR_ADC_REG11, .regmap_config = &meson_sar_adc_regmap_config_gxbb, .resolution = 12, + .disable_ring_counter = 1, }; static const struct meson_sar_adc_data meson_sar_adc_meson8_data = { -- 2.38.4