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Commit 1ed895c2 authored by Wei Ni's avatar Wei Ni Committed by Eduardo Valentin
Browse files

thermal: tegra: handle HW initialization in one funcotion 



Handle HW initialization in one function soctherm_init(),
so that the codes are more clear.

Signed-off-by: default avatarWei Ni <wni@nvidia.com>
Signed-off-by: default avatarEduardo Valentin <edubezval@gmail.com>
parent 8de2ab02

drivers/thermal/tegra/soctherm.c

+44 −41
Original line number Diff line number Diff line
@@ -95,19 +95,11 @@ struct tegra_soctherm { 
	struct dentry *debugfs_dir;

};



static int enable_tsensor(struct tegra_soctherm *tegra,

			  unsigned int i,

			  const struct tsensor_shared_calib *shared)

static void enable_tsensor(struct tegra_soctherm *tegra, unsigned int i)

{

	const struct tegra_tsensor *sensor = &tegra->soc->tsensors[i];

	void __iomem *base = tegra->regs + sensor->base;

	u32 *calib = &tegra->calib[i];

	unsigned int val;

	int err;



	err = tegra_calc_tsensor_calib(sensor, shared, calib);

	if (err)

		return err;



	val = sensor->config->tall << SENSOR_CONFIG0_TALL_SHIFT;

	writel(val, base + SENSOR_CONFIG0);
@@ -118,9 +110,7 @@ static int enable_tsensor(struct tegra_soctherm *tegra, 
	val |= SENSOR_CONFIG1_TEMP_ENABLE;

	writel(val, base + SENSOR_CONFIG1);



	writel(*calib, base + SENSOR_CONFIG2);



	return 0;

	writel(tegra->calib[i], base + SENSOR_CONFIG2);

}



/*
@@ -461,6 +451,34 @@ static int soctherm_clk_enable(struct platform_device *pdev, bool enable) 
	return 0;

}



static void soctherm_init(struct platform_device *pdev)

{

	struct tegra_soctherm *tegra = platform_get_drvdata(pdev);

	const struct tegra_tsensor_group **ttgs = tegra->soc->ttgs;

	int i;

	u32 pdiv, hotspot;



	/* Initialize raw sensors */

	for (i = 0; i < tegra->soc->num_tsensors; ++i)

		enable_tsensor(tegra, i);



	/* program pdiv and hotspot offsets per THERM */

	pdiv = readl(tegra->regs + SENSOR_PDIV);

	hotspot = readl(tegra->regs + SENSOR_HOTSPOT_OFF);

	for (i = 0; i < tegra->soc->num_ttgs; ++i) {

		pdiv = REG_SET_MASK(pdiv, ttgs[i]->pdiv_mask,

				    ttgs[i]->pdiv);

		/* hotspot offset from PLLX, doesn't need to configure PLLX */

		if (ttgs[i]->id == TEGRA124_SOCTHERM_SENSOR_PLLX)

			continue;

		hotspot =  REG_SET_MASK(hotspot,

					ttgs[i]->pllx_hotspot_mask,

					ttgs[i]->pllx_hotspot_diff);

	}

	writel(pdiv, tegra->regs + SENSOR_PDIV);

	writel(hotspot, tegra->regs + SENSOR_HOTSPOT_OFF);

}



static const struct of_device_id tegra_soctherm_of_match[] = {

#ifdef CONFIG_ARCH_TEGRA_124_SOC

	{
@@ -488,7 +506,6 @@ static int tegra_soctherm_probe(struct platform_device *pdev) 
	struct tegra_soctherm_soc *soc;

	unsigned int i;

	int err;

	u32 pdiv, hotspot;



	match = of_match_node(tegra_soctherm_of_match, pdev->dev.of_node);

	if (!match)
@@ -529,45 +546,31 @@ static int tegra_soctherm_probe(struct platform_device *pdev) 
		return PTR_ERR(tegra->clock_soctherm);

	}



	err = soctherm_clk_enable(pdev, true);

	if (err)

		return err;



	/* Initialize raw sensors */



	tegra->calib = devm_kzalloc(&pdev->dev,

				    sizeof(u32) * soc->num_tsensors,

				    GFP_KERNEL);

	if (!tegra->calib) {

		err = -ENOMEM;

		goto disable_clocks;

	}

	if (!tegra->calib)

		return -ENOMEM;



	/* calculate shared calibration data */

	err = tegra_calc_shared_calib(soc->tfuse, &shared_calib);

	if (err)

		goto disable_clocks;

		return err;



	/* calculate tsensor calibaration data */

	for (i = 0; i < soc->num_tsensors; ++i) {

		err = enable_tsensor(tegra, i, &shared_calib);

		err = tegra_calc_tsensor_calib(&soc->tsensors[i],

					       &shared_calib,

					       &tegra->calib[i]);

		if (err)

			goto disable_clocks;

			return err;

	}



	/* Program pdiv and hotspot offsets per THERM */

	pdiv = readl(tegra->regs + SENSOR_PDIV);

	hotspot = readl(tegra->regs + SENSOR_HOTSPOT_OFF);

	for (i = 0; i < soc->num_ttgs; ++i) {

		pdiv = REG_SET_MASK(pdiv, soc->ttgs[i]->pdiv_mask,

				    soc->ttgs[i]->pdiv);

		/* hotspot offset from PLLX, doesn't need to configure PLLX */

		if (soc->ttgs[i]->id == TEGRA124_SOCTHERM_SENSOR_PLLX)

			continue;

		hotspot =  REG_SET_MASK(hotspot,

					soc->ttgs[i]->pllx_hotspot_mask,

					soc->ttgs[i]->pllx_hotspot_diff);

	}

	writel(pdiv, tegra->regs + SENSOR_PDIV);

	writel(hotspot, tegra->regs + SENSOR_HOTSPOT_OFF);

	err = soctherm_clk_enable(pdev, true);

	if (err)

		return err;



	soctherm_init(pdev);



	for (i = 0; i < soc->num_ttgs; ++i) {

		struct tegra_thermctl_zone *zone =