From 63e39fcaa6db821b05103b55483a44d0c5b43abb Mon Sep 17 00:00:00 2001 From: Maksim Kiselev Date: Mon, 19 Feb 2024 15:36:36 +0000 Subject: thermal/drivers/sun8i: Extend H6 calibration to support 4 sensors The H616 SoC resembles the H6 thermal sensor controller, with a few changes like four sensors. Extend sun50i_h6_ths_calibrate() function to support calibration of these sensors. Co-developed-by: Martin Botka Signed-off-by: Martin Botka Signed-off-by: Maksim Kiselev Reviewed-by: Andre Przywara Signed-off-by: Andre Przywara Reviewed-by: Jernej Skrabec Acked-by: Vasily Khoruzhick Signed-off-by: Daniel Lezcano Link: https://lore.kernel.org/r/20240219153639.179814-5-andre.przywara@arm.com --- drivers/thermal/sun8i_thermal.c | 28 ++++++++++++++++++++-------- 1 file changed, 20 insertions(+), 8 deletions(-) (limited to 'drivers/thermal') diff --git a/drivers/thermal/sun8i_thermal.c b/drivers/thermal/sun8i_thermal.c index 42bee03c4e50..c919b0fd5e16 100644 --- a/drivers/thermal/sun8i_thermal.c +++ b/drivers/thermal/sun8i_thermal.c @@ -222,16 +222,21 @@ static int sun50i_h6_ths_calibrate(struct ths_device *tmdev, struct device *dev = tmdev->dev; int i, ft_temp; - if (!caldata[0] || callen < 2 + 2 * tmdev->chip->sensor_num) + if (!caldata[0]) return -EINVAL; /* * efuse layout: * - * 0 11 16 32 - * +-------+-------+-------+ - * |temp| |sensor0|sensor1| - * +-------+-------+-------+ + * 0 11 16 27 32 43 48 57 + * +----------+-----------+-----------+-----------+ + * | temp | |sensor0| |sensor1| |sensor2| | + * +----------+-----------+-----------+-----------+ + * ^ ^ ^ + * | | | + * | | sensor3[11:8] + * | sensor3[7:4] + * sensor3[3:0] * * The calibration data on the H6 is the ambient temperature and * sensor values that are filled during the factory test stage. @@ -244,9 +249,16 @@ static int sun50i_h6_ths_calibrate(struct ths_device *tmdev, ft_temp = (caldata[0] & FT_TEMP_MASK) * 100; for (i = 0; i < tmdev->chip->sensor_num; i++) { - int sensor_reg = caldata[i + 1] & TEMP_CALIB_MASK; - int cdata, offset; - int sensor_temp = tmdev->chip->calc_temp(tmdev, i, sensor_reg); + int sensor_reg, sensor_temp, cdata, offset; + + if (i == 3) + sensor_reg = (caldata[1] >> 12) + | ((caldata[2] >> 12) << 4) + | ((caldata[3] >> 12) << 8); + else + sensor_reg = caldata[i + 1] & TEMP_CALIB_MASK; + + sensor_temp = tmdev->chip->calc_temp(tmdev, i, sensor_reg); /* * Calibration data is CALIBRATE_DEFAULT - (calculated -- cgit v1.2.3