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AJvYcCWpI12rD28pN0tBWkLZkEHwWKqUneGWhpeG62raZz9rBsYvvNU+dPXHe1K9aMEZVAsOEyRS2EAKEA7qe7/jqFpnRJXXqukoyIvyIFKvshBMw8CLvh0QxcAmNEa8nxv7DfVxrm8j7UcR X-Gm-Message-State: AOJu0YzbRjb8aBNN+/WpTEY9QfS/MV9i90kRX9eL9sWD+nFHAW+KhxyA ujoE2L6qBcCtROQhrexjj8Do73g917FXaumm8+LlpOtectY1hday X-Received: by 2002:a17:906:fa87:b0:a3e:c6de:e5ae with SMTP id lt7-20020a170906fa8700b00a3ec6dee5aemr5152274ejb.0.1708454488971; Tue, 20 Feb 2024 10:41:28 -0800 (PST) Received: from localhost.localdomain ([2a04:ee41:82:7577:4de1:dcc0:a48:7f]) by smtp.gmail.com with ESMTPSA id bm8-20020a170906c04800b00a3d9e6e9983sm4269594ejb.174.2024.02.20.10.41.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 20 Feb 2024 10:41:28 -0800 (PST) From: Vasileios Amoiridis To: jic23@kernel.org Cc: lars@metafoo.de, ang.iglesiasg@gmail.com, andriy.shevchenko@linux.intel.com, linus.walleij@linaro.org, semen.protsenko@linaro.org, linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, Vasileios Amoiridis Subject: [PATCH 1/2] drivers: iio: pressure: Fixes BMP38x and BMP390 SPI support Date: Tue, 20 Feb 2024 19:41:24 +0100 Message-Id: <20240220184125.32602-1-vassilisamir@gmail.com> X-Mailer: git-send-email 2.25.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1791444413834127172 X-GMAIL-MSGID: 1791444413834127172 According to the datasheet of BMP38x and BMP390 devices, for an SPI read operation the first byte that is returned needs to be dropped, and the rest of the bytes are the actual data returned from the sensor. Fixes: 8d329309184d ("iio: pressure: bmp280: Add support for BMP380 sensor family") Signed-off-by: Vasileios Amoiridis --- drivers/iio/pressure/bmp280-spi.c | 49 ++++++++++++++++++++++++++++++- 1 file changed, 48 insertions(+), 1 deletion(-) diff --git a/drivers/iio/pressure/bmp280-spi.c b/drivers/iio/pressure/bmp280-spi.c index e8a5fed07e88..1972014dca93 100644 --- a/drivers/iio/pressure/bmp280-spi.c +++ b/drivers/iio/pressure/bmp280-spi.c @@ -8,6 +8,7 @@ #include #include #include +#include #include "bmp280.h" @@ -35,6 +36,33 @@ static int bmp280_regmap_spi_read(void *context, const void *reg, return spi_write_then_read(spi, reg, reg_size, val, val_size); } +static int bmp380_regmap_spi_read(void *context, const void *reg, + size_t reg_size, void *val, size_t val_size) +{ + struct spi_device *spi = to_spi_device(context); + u8 rx_buf[4]; + ssize_t status; + + /* + * Maximum number of consecutive bytes read for a temperature or + * pressure measurement is 3. + */ + if (val_size > 3) + return -EINVAL; + /* + * According to the BMP3xx datasheets, for a basic SPI read opertion, + * the first byte needs to be dropped and the rest are the requested + * data. + */ + status = spi_write_then_read(spi, reg, 1, rx_buf, val_size + 1); + if (status) + return status; + + memcpy(val, rx_buf + 1, val_size); + + return 0; +} + static struct regmap_bus bmp280_regmap_bus = { .write = bmp280_regmap_spi_write, .read = bmp280_regmap_spi_read, @@ -42,10 +70,19 @@ static struct regmap_bus bmp280_regmap_bus = { .val_format_endian_default = REGMAP_ENDIAN_BIG, }; +static struct regmap_bus bmp380_regmap_bus = { + .write = bmp280_regmap_spi_write, + .read = bmp380_regmap_spi_read, + .read_flag_mask = BIT(7), + .reg_format_endian_default = REGMAP_ENDIAN_BIG, + .val_format_endian_default = REGMAP_ENDIAN_BIG, +}; + static int bmp280_spi_probe(struct spi_device *spi) { const struct spi_device_id *id = spi_get_device_id(spi); const struct bmp280_chip_info *chip_info; + struct regmap_bus *bmp_regmap_bus; struct regmap *regmap; int ret; @@ -58,8 +95,18 @@ static int bmp280_spi_probe(struct spi_device *spi) chip_info = spi_get_device_match_data(spi); + switch (chip_info->chip_id[0]) { + case BMP380_CHIP_ID: + case BMP390_CHIP_ID: + bmp_regmap_bus = &bmp380_regmap_bus; + break; + default: + bmp_regmap_bus = &bmp280_regmap_bus; + break; + } + regmap = devm_regmap_init(&spi->dev, - &bmp280_regmap_bus, + bmp_regmap_bus, &spi->dev, chip_info->regmap_config); if (IS_ERR(regmap)) { From patchwork Tue Feb 20 18:41:25 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vasileios Amoiridis X-Patchwork-Id: 203748 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a05:693c:2685:b0:108:e6aa:91d0 with SMTP id mn5csp595450dyc; Tue, 20 Feb 2024 10:42:15 -0800 (PST) X-Forwarded-Encrypted: i=3; AJvYcCUmE2g4vBuRuG+UimzunbcsRqVohd4QiqILtQTIJHHoq6UJE+i5RTosrh/02fwR4pae69NIf6zLP/Ns1uEjsitXrzj/kw== X-Google-Smtp-Source: AGHT+IGr6TMwBELd084wHAdnont+A+xVDUBxjpVF2InSRD2OnZOzPEyBxgRy/QZbM8gWoba1UmgH X-Received: by 2002:ac8:5d8a:0:b0:42d:e765:616 with SMTP id d10-20020ac85d8a000000b0042de7650616mr12791957qtx.36.1708454534782; Tue, 20 Feb 2024 10:42:14 -0800 (PST) ARC-Seal: i=2; a=rsa-sha256; t=1708454534; cv=pass; d=google.com; s=arc-20160816; b=sMiRI5/76TxTwyMN7/sdsM6QBq/gz9OYRWxt6ss3l3Vw7cdRhvQNKkTsQoSMIs1kRe PNeSEYG9qXeShg3Yy7tj7k3tNeXDIXBsCTBZnbj8pwkKDfdRSOJOycrNhrHLLBmU7AoN hNWBW2dfPNa1Zvya3sMa3UfomT6JJy+d00viYVvRLY+BkIg1tSJnepOdW2d5zbEU5TW8 sktAIPpc1iN5OsWNAGeLW57356n3rzaVZgXr+cr4lBilg9zsHOO1fmj9DDf5AJB9B37q jZgiheJT6M58MXLd/ZMANyrojnjf+FLj452K5oKcTISivyC0NkC5uJXLS4wOXV7eX0Qe QHVA== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=content-transfer-encoding:mime-version:list-unsubscribe :list-subscribe:list-id:precedence:references:in-reply-to:message-id :date:subject:cc:to:from:dkim-signature; bh=sO+tJy+OcpVtqK+jntLOR303MXxAWwT3SO7chMYMGqE=; fh=PcR1QxFybcplpXcwg+qrXaEhSFARXneq31gsR3wiQQk=; b=mGY33wCmY6bxSPSMZtfj22hCtNQhyB+66eyM2R/CDdtQ+mA0awNDgSYmnXZI1nEAWT 02C6bMR3hw+FdjCyg7fahHK7QF8k1yRCAsMzdB1NiURm74aIdC+L6BnqdeeNdjCQUHZO 9y56V645QSw+STcvnabk51CFNDW4UA5fbSGG4hxGJk+QTQMg2a96OdxgXPK7rlQk0MYv P3xhZlmysJRdmpTb//z635WGNuvzmq3oQoC1tOHgKcvurLUsNeOze646PnblI/DIRT3f xHh0v+buQxuco/j2dsSnuOkUhvJftdBC0LCX4iSbKt5ncB1J9Hq2slBpnollvLBZKEBO vCxQ==; dara=google.com ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@gmail.com header.s=20230601 header.b=gdM6V29I; arc=pass (i=1 spf=pass spfdomain=gmail.com dkim=pass dkdomain=gmail.com dmarc=pass fromdomain=gmail.com); spf=pass (google.com: domain of linux-kernel+bounces-73523-ouuuleilei=gmail.com@vger.kernel.org designates 2604:1380:45d1:ec00::1 as permitted sender) smtp.mailfrom="linux-kernel+bounces-73523-ouuuleilei=gmail.com@vger.kernel.org"; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: from ny.mirrors.kernel.org (ny.mirrors.kernel.org. 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AJvYcCX3qdgUuO7yLU0HEE+07kUr8f0wRLKULIuwuP/X6GU9yCpm9gDz54fd6tBsw48LpOrVivDwqB21V6lT8QLW9ppta4a3ycPCnELK92a7k2BRz2fFVcuvpR0Q3IVJuG5Ron2icPQD+7th X-Gm-Message-State: AOJu0YzpjRjxgh4z/mwxNIEPTB4Eig6WbPUehzCpVCpesOJ8yhq0+LSk 4TGTzugKPNCIZT+PcZqGUIVd8GC8nvdK3KnuRORtdgIEubGGuNbG X-Received: by 2002:a05:6512:488a:b0:512:afcf:771 with SMTP id eq10-20020a056512488a00b00512afcf0771mr4718567lfb.42.1708454491250; Tue, 20 Feb 2024 10:41:31 -0800 (PST) Received: from localhost.localdomain ([2a04:ee41:82:7577:4de1:dcc0:a48:7f]) by smtp.gmail.com with ESMTPSA id bm8-20020a170906c04800b00a3d9e6e9983sm4269594ejb.174.2024.02.20.10.41.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 20 Feb 2024 10:41:30 -0800 (PST) From: Vasileios Amoiridis To: jic23@kernel.org Cc: lars@metafoo.de, ang.iglesiasg@gmail.com, andriy.shevchenko@linux.intel.com, linus.walleij@linaro.org, semen.protsenko@linaro.org, linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, Vasileios Amoiridis Subject: [PATCH 2/2] drivers: iio: pressure: Sort headers of BMPxxx SPI driver Date: Tue, 20 Feb 2024 19:41:25 +0100 Message-Id: <20240220184125.32602-2-vassilisamir@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240220184125.32602-1-vassilisamir@gmail.com> References: <20240220184125.32602-1-vassilisamir@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1791444422541917874 X-GMAIL-MSGID: 1791444422541917874 Alphabetical sorting and separation of headers for the BMPxxx SPI driver. Signed-off-by: Vasileios Amoiridis --- drivers/iio/pressure/bmp280-spi.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/iio/pressure/bmp280-spi.c b/drivers/iio/pressure/bmp280-spi.c index 1972014dca93..3458806f11fb 100644 --- a/drivers/iio/pressure/bmp280-spi.c +++ b/drivers/iio/pressure/bmp280-spi.c @@ -4,11 +4,12 @@ * * Inspired by the older BMP085 driver drivers/misc/bmp085-spi.c */ -#include -#include +#include #include +#include #include -#include + +#include #include "bmp280.h"