iio: pressure: bmp280: BMP280 calibration to entropy (6282b5c6) · Commits · 戴 / test

The BMP280/BME280 calibration data should also go into the entropy pool, like we do for BMP180. This just adds the temperature and pressure calibration, the humidity calibration seems like too much annoying calls to add. Cc: Tomasz Duszynski <tduszyns@gmail.com> Cc: Stefan Tatschner <stefan.tatschner@gmail.com> Cc: Andreas Klinger <ak@it-klinger.de> Signed-off-by:

Linus Walleij <linus.walleij@linaro.org> Signed-off-by:

Jonathan Cameron <Jonathan.Cameron@huawei.com>

drivers/iio/pressure/bmp280-core.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -164,6 +164,9 @@ static int bmp280_read_calib(struct bmp280_data *data,
		return ret;
		}

		/* Toss the temperature calibration data into the entropy pool */
		add_device_randomness(t_buf, sizeof(t_buf));

		calib->T1 = le16_to_cpu(t_buf[T1]);
		calib->T2 = le16_to_cpu(t_buf[T2]);
		calib->T3 = le16_to_cpu(t_buf[T3]);
		@@ -177,6 +180,9 @@ static int bmp280_read_calib(struct bmp280_data *data,
		return ret;
		}

		/* Toss the pressure calibration data into the entropy pool */
		add_device_randomness(p_buf, sizeof(p_buf));

		calib->P1 = le16_to_cpu(p_buf[P1]);
		calib->P2 = le16_to_cpu(p_buf[P2]);
		calib->P3 = le16_to_cpu(p_buf[P3]);

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