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Revert "thermal: rockchip: fix up the tsadc pinctrl setting error"

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This reverts commit 28694e009e.

The commit causes multiple issues in that:
- the added call to ->control does potentially run unclocked
  causing a hang of the machine
- the added pinctrl-states are undocumented in the binding
- the added pinctrl-states are not backwards compatible, breaking
  old devicetrees.

Fixes: 28694e009e ("thermal: rockchip: fix up the tsadc pinctrl setting error")
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reported-by: kernelci.org bot <bot@kernelci.org>
Reported-by: Enric Balletbo Serra <eballetbo@gmail.com>
Reported-by: Vicente Bergas <vicencb@gmail.com>
Reported-by: Jack Mitchell <ml@embed.me.uk>
Reported-by: Douglas Anderson <dianders@chromium.org>
Tested-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
This commit is contained in:
Heiko Stuebner 2019-05-22 16:12:36 +02:00 committed by Eduardo Valentin
parent 4dde821e42
commit 0f5ee062d8
1 changed files with 3 additions and 33 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

36
drivers/thermal/rockchip_thermal.c
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@ -172,9 +172,6 @@ struct rockchip_thermal_data {
int tshut_temp;
enum tshut_mode tshut_mode;
enum tshut_polarity tshut_polarity;
struct pinctrl *pinctrl;
struct pinctrl_state *gpio_state;
struct pinctrl_state *otp_state;
};
/**
@ -1283,8 +1280,6 @@ static int rockchip_thermal_probe(struct platform_device *pdev)
return error;
}
thermal->chip->control(thermal->regs, false);
error = clk_prepare_enable(thermal->clk);
if (error) {
dev_err(&pdev->dev, "failed to enable converter clock: %d\n",
@ -1310,30 +1305,6 @@ static int rockchip_thermal_probe(struct platform_device *pdev)
thermal->chip->initialize(thermal->grf, thermal->regs,
thermal->tshut_polarity);
if (thermal->tshut_mode == TSHUT_MODE_GPIO) {
thermal->pinctrl = devm_pinctrl_get(&pdev->dev);
if (IS_ERR(thermal->pinctrl)) {
dev_err(&pdev->dev, "failed to find thermal pinctrl\n");
return PTR_ERR(thermal->pinctrl);
}
thermal->gpio_state = pinctrl_lookup_state(thermal->pinctrl,
"gpio");
if (IS_ERR_OR_NULL(thermal->gpio_state)) {
dev_err(&pdev->dev, "failed to find thermal gpio state\n");
return -EINVAL;
}
thermal->otp_state = pinctrl_lookup_state(thermal->pinctrl,
"otpout");
if (IS_ERR_OR_NULL(thermal->otp_state)) {
dev_err(&pdev->dev, "failed to find thermal otpout state\n");
return -EINVAL;
}
pinctrl_select_state(thermal->pinctrl, thermal->otp_state);
}
for (i = 0; i < thermal->chip->chn_num; i++) {
error = rockchip_thermal_register_sensor(pdev, thermal,
&thermal->sensors[i],
@ -1404,8 +1375,8 @@ static int __maybe_unused rockchip_thermal_suspend(struct device *dev)
clk_disable(thermal->pclk);
clk_disable(thermal->clk);
if (thermal->tshut_mode == TSHUT_MODE_GPIO)
pinctrl_select_state(thermal->pinctrl, thermal->gpio_state);
pinctrl_pm_select_sleep_state(dev);
return 0;
}
@ -1450,8 +1421,7 @@ static int __maybe_unused rockchip_thermal_resume(struct device *dev)
for (i = 0; i < thermal->chip->chn_num; i++)
rockchip_thermal_toggle_sensor(&thermal->sensors[i], true);
if (thermal->tshut_mode == TSHUT_MODE_GPIO)
pinctrl_select_state(thermal->pinctrl, thermal->otp_state);
pinctrl_pm_select_default_state(dev);
return 0;
}