From patchwork Wed Sep 15 15:58:48 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Miquel Raynal X-Patchwork-Id: 512625 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 058F4C4332F for ; Wed, 15 Sep 2021 16:00:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E256A61250 for ; Wed, 15 Sep 2021 16:00:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238489AbhIOQB1 (ORCPT ); Wed, 15 Sep 2021 12:01:27 -0400 Received: from relay8-d.mail.gandi.net ([217.70.183.201]:58173 "EHLO relay8-d.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238457AbhIOQB0 (ORCPT ); Wed, 15 Sep 2021 12:01:26 -0400 Received: (Authenticated sender: miquel.raynal@bootlin.com) by relay8-d.mail.gandi.net (Postfix) with ESMTPSA id E85A71BF203; Wed, 15 Sep 2021 16:00:03 +0000 (UTC) From: Miquel Raynal To: Jonathan Cameron , Lars-Peter Clausen , Peter Meerwald-Stadler , Rob Herring , Dmitry Torokhov , Lee Jones , bcousson@baylibre.com, Tony Lindgren Cc: linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-omap@vger.kernel.org, Thomas Petazzoni , Vignesh Raghavendra , Lokesh Vutla , Tero Kristo , Ryan Barnett , Grygorii Strashko , Jason Reeder , Miquel Raynal Subject: [PATCH v3 27/47] mfd: ti_am335x_tscadc: Clarify the maximum values for DT entries Date: Wed, 15 Sep 2021 17:58:48 +0200 Message-Id: <20210915155908.476767-28-miquel.raynal@bootlin.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20210915155908.476767-1-miquel.raynal@bootlin.com> References: <20210915155908.476767-1-miquel.raynal@bootlin.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org Clearly define the maximum open delay and sample delay. Use these definitions in place of a mask (which works because this is the first field in the register) and an open-coded value. While at it reword a little bit the error messages to make them look clearer and similar. Signed-off-by: Miquel Raynal --- drivers/iio/adc/ti_am335x_adc.c | 18 +++++++++--------- include/linux/mfd/ti_am335x_tscadc.h | 2 ++ 2 files changed, 11 insertions(+), 9 deletions(-) diff --git a/drivers/iio/adc/ti_am335x_adc.c b/drivers/iio/adc/ti_am335x_adc.c index 3dec115e68ee..a241e6fa3564 100644 --- a/drivers/iio/adc/ti_am335x_adc.c +++ b/drivers/iio/adc/ti_am335x_adc.c @@ -126,7 +126,7 @@ static void tiadc_step_config(struct iio_dev *indio_dev) chan = adc_dev->channel_line[i]; if (adc_dev->step_avg[i] > STEPCONFIG_AVG_16) { - dev_warn(dev, "chan %d step_avg truncating to %ld\n", + dev_warn(dev, "chan %d: wrong step avg, truncated to %ld\n", chan, STEPCONFIG_AVG_16); adc_dev->step_avg[i] = STEPCONFIG_AVG_16; } @@ -147,16 +147,16 @@ static void tiadc_step_config(struct iio_dev *indio_dev) STEPCONFIG_RFP_VREFP | STEPCONFIG_RFM_VREFN); - if (adc_dev->open_delay[i] > STEPDELAY_OPEN_MASK) { - dev_warn(dev, "chan %d open delay truncating to 0x3FFFF\n", - chan); - adc_dev->open_delay[i] = STEPDELAY_OPEN_MASK; + if (adc_dev->open_delay[i] > STEPCONFIG_MAX_OPENDLY) { + dev_warn(dev, "chan %d: wrong open delay, truncated to 0x%lX\n", + chan, STEPCONFIG_MAX_OPENDLY); + adc_dev->open_delay[i] = STEPCONFIG_MAX_OPENDLY; } - if (adc_dev->sample_delay[i] > 0xFF) { - dev_warn(dev, "chan %d sample delay truncating to 0xFF\n", - chan); - adc_dev->sample_delay[i] = 0xFF; + if (adc_dev->sample_delay[i] > STEPCONFIG_MAX_SAMPLE) { + dev_warn(dev, "chan %d: wrong sample delay, truncated to 0x%lX\n", + chan, STEPCONFIG_MAX_SAMPLE); + adc_dev->sample_delay[i] = STEPCONFIG_MAX_SAMPLE; } tiadc_writel(adc_dev, REG_STEPDELAY(steps), diff --git a/include/linux/mfd/ti_am335x_tscadc.h b/include/linux/mfd/ti_am335x_tscadc.h index e6fe623bb1aa..babc2e36c5d0 100644 --- a/include/linux/mfd/ti_am335x_tscadc.h +++ b/include/linux/mfd/ti_am335x_tscadc.h @@ -91,7 +91,9 @@ #define STEPCONFIG_OPENDLY STEPDELAY_OPEN(0x098) #define STEPDELAY_SAMPLE_MASK GENMASK(31, 24) #define STEPDELAY_SAMPLE(val) FIELD_PREP(STEPDELAY_SAMPLE_MASK, (val)) +#define STEPCONFIG_MAX_OPENDLY GENMASK(17, 0) #define STEPCONFIG_SAMPLEDLY STEPDELAY_SAMPLE(0) +#define STEPCONFIG_MAX_SAMPLE GENMASK(7, 0) /* Charge Config */ #define STEPCHARGE_RFP_MASK GENMASK(14, 12)