From: Mason Chang <mason-cw.chang@mediatek.com>
[ Upstream commit 685a755089f95b7e205c0202567d9a647f9de096 ]
These commands are necessary to avoid severely abnormal and inaccurate
temperature readings that are caused by using the default commands.
Fixes: 585e92e6a79f ("thermal/drivers/mediatek/lvts_thermal: Add mt7988 support")
Signed-off-by: Mason Chang <mason-cw.chang@mediatek.com>
Link: https://lore.kernel.org/r/20250526102659.30225-4-mason-cw.chang@mediatek.com
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
---
drivers/thermal/mediatek/lvts_thermal.c | 16 ++++++++++++----
1 file changed, 12 insertions(+), 4 deletions(-)
diff --git a/drivers/thermal/mediatek/lvts_thermal.c b/drivers/thermal/mediatek/lvts_thermal.c
index 239476152bab..017191b9f864 100644
--- a/drivers/thermal/mediatek/lvts_thermal.c
+++ b/drivers/thermal/mediatek/lvts_thermal.c
@@ -1421,6 +1421,8 @@ static int lvts_resume(struct device *dev)
}
static const u32 default_conn_cmds[] = { 0xC103FFFF, 0xC502FF55 };
+static const u32 mt7988_conn_cmds[] = { 0xC103FFFF, 0xC502FC55 };
+
/*
* Write device mask: 0xC1030000
*/
@@ -1431,6 +1433,12 @@ static const u32 default_init_cmds[] = {
0xC10300FC, 0xC103009D, 0xC10300F1, 0xC10300E1
};
+static const u32 mt7988_init_cmds[] = {
+ 0xC1030300, 0xC1030420, 0xC1030500, 0xC10307A6, 0xC1030CFC,
+ 0xC1030A8C, 0xC103098D, 0xC10308F1, 0xC1030B04, 0xC1030E01,
+ 0xC10306B8
+};
+
/*
* The MT8186 calibration data is stored as packed 3-byte little-endian
* values using a weird layout that makes sense only when viewed as a 32-bit
@@ -1725,11 +1733,11 @@ static const struct lvts_ctrl_data mt8195_lvts_ap_data_ctrl[] = {
static const struct lvts_data mt7988_lvts_ap_data = {
.lvts_ctrl = mt7988_lvts_ap_data_ctrl,
- .conn_cmd = default_conn_cmds,
- .init_cmd = default_init_cmds,
+ .conn_cmd = mt7988_conn_cmds,
+ .init_cmd = mt7988_init_cmds,
.num_lvts_ctrl = ARRAY_SIZE(mt7988_lvts_ap_data_ctrl),
- .num_conn_cmd = ARRAY_SIZE(default_conn_cmds),
- .num_init_cmd = ARRAY_SIZE(default_init_cmds),
+ .num_conn_cmd = ARRAY_SIZE(mt7988_conn_cmds),
+ .num_init_cmd = ARRAY_SIZE(mt7988_init_cmds),
.temp_factor = LVTS_COEFF_A_MT7988,
.temp_offset = LVTS_COEFF_B_MT7988,
.gt_calib_bit_offset = 24,
--
2.51.0