1 files changed, 0 insertions, 126 deletions
diff --git a/drivers/thermal/tango_thermal.c b/drivers/thermal/tango_thermal.c
deleted file mode 100644
index 304b461e12aa..000000000000
--- a/drivers/thermal/tango_thermal.c
+++ /dev/null
@@ -1,126 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-#include <linux/io.h>
-#include <linux/delay.h>
-#include <linux/module.h>
-#include <linux/thermal.h>
-#include <linux/platform_device.h>
-
-/*
- * According to a data sheet draft, "this temperature sensor uses a bandgap
- * type of circuit to compare a voltage which has a negative temperature
- * coefficient with a voltage that is proportional to absolute temperature.
- * A resistor bank allows 41 different temperature thresholds to be selected
- * and the logic output will then indicate whether the actual die temperature
- * lies above or below the selected threshold."
- */
-
-#define TEMPSI_CMD	0
-#define TEMPSI_RES	4
-#define TEMPSI_CFG	8
-
-#define CMD_OFF		0
-#define CMD_ON		1
-#define CMD_READ	2
-
-#define IDX_MIN		15
-#define IDX_MAX		40
-
-struct tango_thermal_priv {
-	void __iomem *base;
-	int thresh_idx;
-};
-
-static bool temp_above_thresh(void __iomem *base, int thresh_idx)
-{
-	writel(CMD_READ | thresh_idx << 8, base + TEMPSI_CMD);
-	usleep_range(10, 20);
-	writel(CMD_READ | thresh_idx << 8, base + TEMPSI_CMD);
-
-	return readl(base + TEMPSI_RES);
-}
-
-static int tango_get_temp(void *arg, int *res)
-{
-	struct tango_thermal_priv *priv = arg;
-	int idx = priv->thresh_idx;
-
-	if (temp_above_thresh(priv->base, idx)) {
-		/* Search upward by incrementing thresh_idx */
-		while (idx < IDX_MAX && temp_above_thresh(priv->base, ++idx))
-			cpu_relax();
-		idx = idx - 1; /* always return lower bound */
-	} else {
-		/* Search downward by decrementing thresh_idx */
-		while (idx > IDX_MIN && !temp_above_thresh(priv->base, --idx))
-			cpu_relax();
-	}
-
-	*res = (idx * 9 / 2 - 38) * 1000; /* millidegrees Celsius */
-	priv->thresh_idx = idx;
-
-	return 0;
-}
-
-static const struct thermal_zone_of_device_ops ops = {
-	.get_temp	= tango_get_temp,
-};
-
-static void tango_thermal_init(struct tango_thermal_priv *priv)
-{
-	writel(0, priv->base + TEMPSI_CFG);
-	writel(CMD_ON, priv->base + TEMPSI_CMD);
-}
-
-static int tango_thermal_probe(struct platform_device *pdev)
-{
-	struct resource *res;
-	struct tango_thermal_priv *priv;
-	struct thermal_zone_device *tzdev;
-
-	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
-	if (!priv)
-		return -ENOMEM;
-
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	priv->base = devm_ioremap_resource(&pdev->dev, res);
-	if (IS_ERR(priv->base))
-		return PTR_ERR(priv->base);
-
-	platform_set_drvdata(pdev, priv);
-	priv->thresh_idx = IDX_MIN;
-	tango_thermal_init(priv);
-
-	tzdev = devm_thermal_zone_of_sensor_register(&pdev->dev, 0, priv, &ops);
-	return PTR_ERR_OR_ZERO(tzdev);
-}
-
-static int __maybe_unused tango_thermal_resume(struct device *dev)
-{
-	tango_thermal_init(dev_get_drvdata(dev));
-	return 0;
-}
-
-static SIMPLE_DEV_PM_OPS(tango_thermal_pm, NULL, tango_thermal_resume);
-
-static const struct of_device_id tango_sensor_ids[] = {
-	{
-		.compatible = "sigma,smp8758-thermal",
-	},
-	{ /* sentinel */ }
-};
-MODULE_DEVICE_TABLE(of, tango_sensor_ids);
-
-static struct platform_driver tango_thermal_driver = {
-	.probe	= tango_thermal_probe,
-	.driver	= {
-		.name		= "tango-thermal",
-		.of_match_table	= tango_sensor_ids,
-		.pm		= &tango_thermal_pm,
-	},
-};
-
-module_platform_driver(tango_thermal_driver);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Sigma Designs");
-MODULE_DESCRIPTION("Tango temperature sensor");