From: Nicolas Pitre <nico@fluxnic.net>
To: Daniel Lezcano <daniel.lezcano@linaro.org>,
linux-pm@vger.kernel.org, linux-mediatek@lists.infradead.org,
devicetree@vger.kernel.org
Cc: Nicolas Pitre <npitre@baylibre.com>,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@collabora.com>
Subject: [PATCH v2 10/15] thermal/drivers/mediatek/lvts_thermal: provision for gt variable location
Date: Mon, 1 Apr 2024 23:25:44 -0400 [thread overview]
Message-ID: <20240402032729.2736685-11-nico@fluxnic.net> (raw)
In-Reply-To: <20240402032729.2736685-1-nico@fluxnic.net>
From: Nicolas Pitre <npitre@baylibre.com>
The golden temperature calibration value in nvram is not always the
3rd byte. A future commit will prove this assumption wrong.
Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
---
drivers/thermal/mediatek/lvts_thermal.c | 20 ++++++++++++++------
1 file changed, 14 insertions(+), 6 deletions(-)
diff --git a/drivers/thermal/mediatek/lvts_thermal.c b/drivers/thermal/mediatek/lvts_thermal.c
index 506d52d6ef..00649483bb 100644
--- a/drivers/thermal/mediatek/lvts_thermal.c
+++ b/drivers/thermal/mediatek/lvts_thermal.c
@@ -116,6 +116,7 @@ struct lvts_data {
int num_lvts_ctrl;
int temp_factor;
int temp_offset;
+ int gt_calib_bit_offset;
};
struct lvts_sensor {
@@ -743,20 +744,21 @@ static int lvts_calibration_read(struct device *dev, struct lvts_domain *lvts_td
return 0;
}
-static int lvts_golden_temp_init(struct device *dev, u8 *calib, int temp_offset)
+static int lvts_golden_temp_init(struct device *dev, u8 *calib,
+ const struct lvts_data *lvts_data)
{
u32 gt;
/*
- * The golden temp information is contained in the 4th byte (index = 3)
- * of efuse data.
+ * The golden temp information is contained in the first 32-bit
+ * word of efuse data at a specific bit offset.
*/
- gt = calib[3];
+ gt = (((u32 *)calib)[0] >> lvts_data->gt_calib_bit_offset) & 0xff;
if (gt && gt < LVTS_GOLDEN_TEMP_MAX)
golden_temp = gt;
- golden_temp_offset = golden_temp * 500 + temp_offset;
+ golden_temp_offset = golden_temp * 500 + lvts_data->temp_offset;
return 0;
}
@@ -775,7 +777,7 @@ static int lvts_ctrl_init(struct device *dev, struct lvts_domain *lvts_td,
if (ret)
return ret;
- ret = lvts_golden_temp_init(dev, lvts_td->calib, lvts_data->temp_offset);
+ ret = lvts_golden_temp_init(dev, lvts_td->calib, lvts_data);
if (ret)
return ret;
@@ -1598,6 +1600,7 @@ static const struct lvts_data mt7988_lvts_ap_data = {
.num_lvts_ctrl = ARRAY_SIZE(mt7988_lvts_ap_data_ctrl),
.temp_factor = LVTS_COEFF_A_MT7988,
.temp_offset = LVTS_COEFF_B_MT7988,
+ .gt_calib_bit_offset = 24,
};
static const struct lvts_data mt8186_lvts_data = {
@@ -1605,16 +1608,19 @@ static const struct lvts_data mt8186_lvts_data = {
.num_lvts_ctrl = ARRAY_SIZE(mt8186_lvts_data_ctrl),
.temp_factor = LVTS_COEFF_A_MT7988,
.temp_offset = LVTS_COEFF_B_MT7988,
+ .gt_calib_bit_offset = 24,
};
static const struct lvts_data mt8192_lvts_mcu_data = {
.lvts_ctrl = mt8192_lvts_mcu_data_ctrl,
.num_lvts_ctrl = ARRAY_SIZE(mt8192_lvts_mcu_data_ctrl),
+ .gt_calib_bit_offset = 24,
};
static const struct lvts_data mt8192_lvts_ap_data = {
.lvts_ctrl = mt8192_lvts_ap_data_ctrl,
.num_lvts_ctrl = ARRAY_SIZE(mt8192_lvts_ap_data_ctrl),
+ .gt_calib_bit_offset = 24,
};
static const struct lvts_data mt8195_lvts_mcu_data = {
@@ -1622,6 +1628,7 @@ static const struct lvts_data mt8195_lvts_mcu_data = {
.num_lvts_ctrl = ARRAY_SIZE(mt8195_lvts_mcu_data_ctrl),
.temp_factor = LVTS_COEFF_A_MT8195,
.temp_offset = LVTS_COEFF_B_MT8195,
+ .gt_calib_bit_offset = 24,
};
static const struct lvts_data mt8195_lvts_ap_data = {
@@ -1629,6 +1636,7 @@ static const struct lvts_data mt8195_lvts_ap_data = {
.num_lvts_ctrl = ARRAY_SIZE(mt8195_lvts_ap_data_ctrl),
.temp_factor = LVTS_COEFF_A_MT8195,
.temp_offset = LVTS_COEFF_B_MT8195,
+ .gt_calib_bit_offset = 24,
};
static const struct of_device_id lvts_of_match[] = {
--
2.44.0
next prev parent reply other threads:[~2024-04-02 3:34 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-02 3:25 [PATCH v3 00/15] Mediatek thermal sensor driver support for MT8186 and MT8188 Nicolas Pitre
2024-04-02 3:25 ` [PATCH v2 01/15] thermal/drivers/mediatek/lvts_thermal: retrieve all calibration bytes Nicolas Pitre
2024-05-14 10:18 ` [thermal: thermal/fixes] thermal/drivers/mediatek/lvts_thermal: Retrieve " thermal-bot for Nicolas Pitre
2024-04-02 3:25 ` [PATCH v2 02/15] thermal/drivers/mediatek/lvts_thermal: move comment Nicolas Pitre
2024-05-14 10:18 ` [thermal: thermal/fixes] thermal/drivers/mediatek/lvts_thermal: Move comment thermal-bot for Nicolas Pitre
2024-04-02 3:25 ` [PATCH v2 03/15] thermal/drivers/mediatek/lvts_thermal: remove .hw_tshut_temp Nicolas Pitre
2024-05-14 10:18 ` [thermal: thermal/fixes] thermal/drivers/mediatek/lvts_thermal: Remove .hw_tshut_temp thermal-bot for Nicolas Pitre
2024-04-02 3:25 ` [PATCH v2 04/15] thermal/drivers/mediatek/lvts_thermal: use offsets for every calibration byte Nicolas Pitre
2024-05-14 10:18 ` [thermal: thermal/fixes] thermal/drivers/mediatek/lvts_thermal: Use " thermal-bot for Nicolas Pitre
2024-04-02 3:25 ` [PATCH v2 05/15] thermal/drivers/mediatek/lvts_thermal: guard against efuse data buffer overflow Nicolas Pitre
2024-05-14 10:18 ` [thermal: thermal/fixes] thermal/drivers/mediatek/lvts_thermal: Guard " thermal-bot for Nicolas Pitre
2024-04-02 3:25 ` [PATCH v2 06/15] dt-bindings: thermal: mediatek: Add LVTS thermal controller definition for MT8186 Nicolas Pitre
2024-04-02 6:44 ` Krzysztof Kozlowski
2024-05-14 10:18 ` [thermal: thermal/fixes] " thermal-bot for Nicolas Pitre
2024-04-02 3:25 ` [PATCH v2 07/15] arm64: dts: mediatek: mt8186: add lvts definitions Nicolas Pitre
2024-04-02 3:25 ` [PATCH v2 08/15] thermal/drivers/mediatek/lvts_thermal: add MT8186 support Nicolas Pitre
2024-05-14 10:18 ` [thermal: thermal/fixes] thermal/drivers/mediatek/lvts_thermal: Add " thermal-bot for Nicolas Pitre
2024-04-02 3:25 ` [PATCH v2 09/15] arm64: dts: mediatek: mt8186: add default thermal zones Nicolas Pitre
2024-04-02 3:25 ` Nicolas Pitre [this message]
2024-05-14 10:18 ` [thermal: thermal/fixes] thermal/drivers/mediatek/lvts_thermal: Provision for gt variable location thermal-bot for Nicolas Pitre
2024-04-02 3:25 ` [PATCH v2 11/15] thermal/drivers/mediatek/lvts_thermal: allow early empty sensor slots Nicolas Pitre
2024-05-14 10:18 ` [thermal: thermal/fixes] thermal/drivers/mediatek/lvts_thermal: Allow " thermal-bot for Nicolas Pitre
2024-04-02 3:25 ` [PATCH v2 12/15] dt-bindings: thermal: mediatek: Add LVTS thermal controller definition for MT8188 Nicolas Pitre
2024-04-02 16:23 ` Rob Herring
2024-05-14 10:18 ` [thermal: thermal/fixes] " thermal-bot for Nicolas Pitre
2024-04-02 3:25 ` [PATCH v2 13/15] arm64: dts: mediatek: mt8188: add lvts definitions Nicolas Pitre
2024-04-02 3:25 ` [PATCH v2 14/15] thermal/drivers/mediatek/lvts_thermal: add MT8188 support Nicolas Pitre
2024-05-14 10:18 ` [thermal: thermal/fixes] thermal/drivers/mediatek/lvts_thermal: Add " thermal-bot for Nicolas Pitre
2024-04-02 3:25 ` [PATCH v2 15/15] arm64: dts: mediatek: mt8188: add default thermal zones Nicolas Pitre
2024-04-04 15:16 ` Daniel Lezcano
2024-05-20 13:19 ` Julien Panis
2024-05-21 11:10 ` Julien Panis
2024-05-21 11:31 ` Daniel Lezcano
2024-05-21 14:07 ` AngeloGioacchino Del Regno
2024-05-21 14:15 ` Julien Panis
2024-04-02 3:31 ` [PATCH v3 00/15] Mediatek thermal sensor driver support for MT8186 and MT8188 Nicolas Pitre
2024-04-23 9:06 ` Daniel Lezcano
2024-04-23 9:22 ` AngeloGioacchino Del Regno
2024-05-20 12:53 ` Julien Panis
2024-05-20 15:16 ` AngeloGioacchino Del Regno
2024-05-20 13:18 ` Julien Panis
2024-05-20 15:17 ` AngeloGioacchino Del Regno
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