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 08/15] thermal/drivers/mediatek/lvts_thermal: add MT8186 support
Date: Mon, 1 Apr 2024 23:25:42 -0400 [thread overview]
Message-ID: <20240402032729.2736685-9-nico@fluxnic.net> (raw)
In-Reply-To: <20240402032729.2736685-1-nico@fluxnic.net>
From: Nicolas Pitre <npitre@baylibre.com>
Various values extracted from the vendor's kernel driver.
Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
---
drivers/thermal/mediatek/lvts_thermal.c | 61 +++++++++++++++++++++++++
1 file changed, 61 insertions(+)
diff --git a/drivers/thermal/mediatek/lvts_thermal.c b/drivers/thermal/mediatek/lvts_thermal.c
index 03ef5b627c..506d52d6ef 100644
--- a/drivers/thermal/mediatek/lvts_thermal.c
+++ b/drivers/thermal/mediatek/lvts_thermal.c
@@ -1373,6 +1373,59 @@ static int lvts_resume(struct device *dev)
return 0;
}
+/*
+ * 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
+ * hexadecimal word dump. Let's suppose SxBy where x = sensor number and
+ * y = byte number where the LSB is y=0. We then have:
+ *
+ * [S0B2-S0B1-S0B0-S1B2] [S1B1-S1B0-S2B2-S2B1] [S2B0-S3B2-S3B1-S3B0]
+ *
+ * However, when considering a byte stream, those appear as follows:
+ *
+ * [S1B2] [S0B0[ [S0B1] [S0B2] [S2B1] [S2B2] [S1B0] [S1B1] [S3B0] [S3B1] [S3B2] [S2B0]
+ *
+ * Hence the rather confusing offsets provided below.
+ */
+static const struct lvts_ctrl_data mt8186_lvts_data_ctrl[] = {
+ {
+ .lvts_sensor = {
+ { .dt_id = MT8186_LITTLE_CPU0,
+ .cal_offsets = { 5, 6, 7 } },
+ { .dt_id = MT8186_LITTLE_CPU1,
+ .cal_offsets = { 10, 11, 4 } },
+ { .dt_id = MT8186_LITTLE_CPU2,
+ .cal_offsets = { 15, 8, 9 } },
+ { .dt_id = MT8186_CAM,
+ .cal_offsets = { 12, 13, 14 } }
+ },
+ .num_lvts_sensor = 4,
+ .offset = 0x0,
+ },
+ {
+ .lvts_sensor = {
+ { .dt_id = MT8186_BIG_CPU0,
+ .cal_offsets = { 22, 23, 16 } },
+ { .dt_id = MT8186_BIG_CPU1,
+ .cal_offsets = { 27, 20, 21 } }
+ },
+ .num_lvts_sensor = 2,
+ .offset = 0x100,
+ },
+ {
+ .lvts_sensor = {
+ { .dt_id = MT8186_NNA,
+ .cal_offsets = { 29, 30, 31 } },
+ { .dt_id = MT8186_ADSP,
+ .cal_offsets = { 34, 35, 28 } },
+ { .dt_id = MT8186_MFG,
+ .cal_offsets = { 39, 32, 33 } }
+ },
+ .num_lvts_sensor = 3,
+ .offset = 0x200,
+ }
+};
+
static const struct lvts_ctrl_data mt8192_lvts_mcu_data_ctrl[] = {
{
.lvts_sensor = {
@@ -1547,6 +1600,13 @@ static const struct lvts_data mt7988_lvts_ap_data = {
.temp_offset = LVTS_COEFF_B_MT7988,
};
+static const struct lvts_data mt8186_lvts_data = {
+ .lvts_ctrl = mt8186_lvts_data_ctrl,
+ .num_lvts_ctrl = ARRAY_SIZE(mt8186_lvts_data_ctrl),
+ .temp_factor = LVTS_COEFF_A_MT7988,
+ .temp_offset = LVTS_COEFF_B_MT7988,
+};
+
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),
@@ -1573,6 +1633,7 @@ static const struct lvts_data mt8195_lvts_ap_data = {
static const struct of_device_id lvts_of_match[] = {
{ .compatible = "mediatek,mt7988-lvts-ap", .data = &mt7988_lvts_ap_data },
+ { .compatible = "mediatek,mt8186-lvts", .data = &mt8186_lvts_data },
{ .compatible = "mediatek,mt8192-lvts-mcu", .data = &mt8192_lvts_mcu_data },
{ .compatible = "mediatek,mt8192-lvts-ap", .data = &mt8192_lvts_ap_data },
{ .compatible = "mediatek,mt8195-lvts-mcu", .data = &mt8195_lvts_mcu_data },
--
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 ` Nicolas Pitre [this message]
2024-05-14 10:18 ` [thermal: thermal/fixes] thermal/drivers/mediatek/lvts_thermal: Add MT8186 support 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 ` [PATCH v2 10/15] thermal/drivers/mediatek/lvts_thermal: provision for gt variable location Nicolas Pitre
2024-05-14 10:18 ` [thermal: thermal/fixes] thermal/drivers/mediatek/lvts_thermal: Provision " 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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