diff options
Diffstat (limited to 'target/linux/generic/backport-5.10/870-hwmon-next-hwmon-lm70-Add-ti-tmp125-support.patch')
-rw-r--r-- | target/linux/generic/backport-5.10/870-hwmon-next-hwmon-lm70-Add-ti-tmp125-support.patch | 71 |
1 files changed, 0 insertions, 71 deletions
diff --git a/target/linux/generic/backport-5.10/870-hwmon-next-hwmon-lm70-Add-ti-tmp125-support.patch b/target/linux/generic/backport-5.10/870-hwmon-next-hwmon-lm70-Add-ti-tmp125-support.patch deleted file mode 100644 index fabf177628..0000000000 --- a/target/linux/generic/backport-5.10/870-hwmon-next-hwmon-lm70-Add-ti-tmp125-support.patch +++ /dev/null @@ -1,71 +0,0 @@ -From 31d8f414e1596ba54a4315418e4c0086fda9e428 Mon Sep 17 00:00:00 2001 -From: Christian Lamparter <chunkeey@gmail.com> -Date: Fri, 18 Feb 2022 10:06:43 +0100 -Subject: hwmon: (lm70) Add ti,tmp125 support - -The TMP125 is a 2 degree Celsius accurate Digital -Temperature Sensor with a SPI interface. - -The temperature register is a 16-bit, read-only register. -The MSB (Bit 15) is a leading zero and never set. Bits 14 -to 5 are the 1+9 temperature data bits in a two's -complement format. Bits 4 to 0 are useless copies of -Bit 5 value and therefore ignored. - -Signed-off-by: Christian Lamparter <chunkeey@gmail.com> -Link: https://lore.kernel.org/r/43b19cbd4e7f51e9509e561b02b5d8d0e7079fac.1645175187.git.chunkeey@gmail.com -Signed-off-by: Guenter Roeck <linux@roeck-us.net> ---- ---- a/drivers/hwmon/lm70.c -+++ b/drivers/hwmon/lm70.c -@@ -34,6 +34,7 @@ - #define LM70_CHIP_LM71 2 /* NS LM71 */ - #define LM70_CHIP_LM74 3 /* NS LM74 */ - #define LM70_CHIP_TMP122 4 /* TI TMP122/TMP124 */ -+#define LM70_CHIP_TMP125 5 /* TI TMP125 */ - - struct lm70 { - struct spi_device *spi; -@@ -87,6 +88,12 @@ static ssize_t temp1_input_show(struct d - * LM71: - * 14 bits of 2's complement data, discard LSB 2 bits, - * resolution 0.0312 degrees celsius. -+ * -+ * TMP125: -+ * MSB/D15 is a leading zero. D14 is the sign-bit. This is -+ * followed by 9 temperature bits (D13..D5) in 2's complement -+ * data format with a resolution of 0.25 degrees celsius per unit. -+ * LSB 5 bits (D4..D0) share the same value as D5 and get discarded. - */ - switch (p_lm70->chip) { - case LM70_CHIP_LM70: -@@ -102,6 +109,10 @@ static ssize_t temp1_input_show(struct d - case LM70_CHIP_LM71: - val = ((int)raw / 4) * 3125 / 100; - break; -+ -+ case LM70_CHIP_TMP125: -+ val = (sign_extend32(raw, 14) / 32) * 250; -+ break; - } - - status = sprintf(buf, "%d\n", val); /* millidegrees Celsius */ -@@ -136,6 +147,10 @@ static const struct of_device_id lm70_of - .data = (void *) LM70_CHIP_TMP122, - }, - { -+ .compatible = "ti,tmp125", -+ .data = (void *) LM70_CHIP_TMP125, -+ }, -+ { - .compatible = "ti,lm71", - .data = (void *) LM70_CHIP_LM71, - }, -@@ -184,6 +199,7 @@ static const struct spi_device_id lm70_i - { "lm70", LM70_CHIP_LM70 }, - { "tmp121", LM70_CHIP_TMP121 }, - { "tmp122", LM70_CHIP_TMP122 }, -+ { "tmp125", LM70_CHIP_TMP125 }, - { "lm71", LM70_CHIP_LM71 }, - { "lm74", LM70_CHIP_LM74 }, - { }, |