linux-kernel - [PATCH 3/6] thermal: rockchip: Support RK3576 SoC in the thermal driver

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Message-Id: <20250216-rk3576-tsadc-upstream-v1-3-6ec969322a14@collabora.com>
Date: Sun, 16 Feb 2025 00:34:52 +0100
From: Nicolas Frattaroli <nicolas.frattaroli@...labora.com>
To: "Rafael J. Wysocki" <rafael@...nel.org>, 
 Daniel Lezcano <daniel.lezcano@...aro.org>, Zhang Rui <rui.zhang@...el.com>, 
 Lukasz Luba <lukasz.luba@....com>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Heiko Stuebner <heiko@...ech.de>
Cc: Sebastian Reichel <sebastian.reichel@...labora.com>, 
 kernel@...labora.com, linux-pm@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-arm-kernel@...ts.infradead.org, linux-rockchip@...ts.infradead.org, 
 linux-kernel@...r.kernel.org, 
 Nicolas Frattaroli <nicolas.frattaroli@...labora.com>, 
 Ye Zhang <ye.zhang@...k-chips.com>
Subject: [PATCH 3/6] thermal: rockchip: Support RK3576 SoC in the thermal
 driver

From: Ye Zhang <ye.zhang@...k-chips.com>

The RK3576 SoC has six TS-ADC channels: TOP, BIG_CORE, LITTLE_CORE,
DDR, NPU and GPU.

Signed-off-by: Ye Zhang <ye.zhang@...k-chips.com>
[ported to mainline, reworded commit message]
Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@...labora.com>
---
 drivers/thermal/rockchip_thermal.c | 42 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)

diff --git a/drivers/thermal/rockchip_thermal.c b/drivers/thermal/rockchip_thermal.c
index f551df48eef935757629f4a6b2a619f1506c1cf3..81f11af83f2b215177b93dc11800eb812aa9f1dd 100644
--- a/drivers/thermal/rockchip_thermal.c
+++ b/drivers/thermal/rockchip_thermal.c
@@ -1060,6 +1060,22 @@ static void rk_tsadcv3_tshut_mode(int chn, void __iomem *regs,
 	writel_relaxed(val_cru, regs + TSADCV3_HSHUT_CRU_INT_EN);
 }
 
+static void rk_tsadcv4_tshut_mode(int chn, void __iomem *regs,
+				  enum tshut_mode mode)
+{
+	u32 val_gpio, val_cru;
+
+	if (mode == TSHUT_MODE_GPIO) {
+		val_gpio = TSADCV2_INT_SRC_EN(chn) | TSADCV2_INT_SRC_EN_MASK(chn);
+		val_cru = TSADCV2_INT_SRC_EN_MASK(chn);
+	} else {
+		val_cru = TSADCV2_INT_SRC_EN(chn) | TSADCV2_INT_SRC_EN_MASK(chn);
+		val_gpio = TSADCV2_INT_SRC_EN_MASK(chn);
+	}
+	writel_relaxed(val_gpio, regs + TSADCV3_HSHUT_GPIO_INT_EN);
+	writel_relaxed(val_cru, regs + TSADCV3_HSHUT_CRU_INT_EN);
+}
+
 static const struct rockchip_tsadc_chip px30_tsadc_data = {
 	/* cpu, gpu */
 	.chn_offset = 0,
@@ -1283,6 +1299,28 @@ static const struct rockchip_tsadc_chip rk3568_tsadc_data = {
 	},
 };
 
+static const struct rockchip_tsadc_chip rk3576_tsadc_data = {
+	/* top, big_core, little_core, ddr, npu, gpu */
+	.chn_offset = 0,
+	.chn_num = 6, /* six channels for tsadc */
+	.tshut_mode = TSHUT_MODE_GPIO, /* default TSHUT via GPIO give PMIC */
+	.tshut_polarity = TSHUT_LOW_ACTIVE, /* default TSHUT LOW ACTIVE */
+	.tshut_temp = 95000,
+	.initialize = rk_tsadcv8_initialize,
+	.irq_ack = rk_tsadcv4_irq_ack,
+	.control = rk_tsadcv4_control,
+	.get_temp = rk_tsadcv4_get_temp,
+	.set_alarm_temp = rk_tsadcv3_alarm_temp,
+	.set_tshut_temp = rk_tsadcv3_tshut_temp,
+	.set_tshut_mode = rk_tsadcv4_tshut_mode,
+	.table = {
+		.id = rk3588_code_table,
+		.length = ARRAY_SIZE(rk3588_code_table),
+		.data_mask = TSADCV4_DATA_MASK,
+		.mode = ADC_INCREMENT,
+	},
+};
+
 static const struct rockchip_tsadc_chip rk3588_tsadc_data = {
 	/* top, big_core0, big_core1, little_core, center, gpu, npu */
 	.chn_offset = 0,
@@ -1341,6 +1379,10 @@ static const struct of_device_id of_rockchip_thermal_match[] = {
 		.compatible = "rockchip,rk3568-tsadc",
 		.data = (void *)&rk3568_tsadc_data,
 	},
+	{
+		.compatible = "rockchip,rk3576-tsadc",
+		.data = (void *)&rk3576_tsadc_data,
+	},
 	{
 		.compatible = "rockchip,rk3588-tsadc",
 		.data = (void *)&rk3588_tsadc_data,

-- 
2.48.1