On 2016年03月10日 05:35, Eduardo Valentin wrote:
> This changes the driver to use the devm_ version
> of thermal_zone_of_sensor_register and cleans
> up the local points and unregister calls.
>
> Cc: Zhang Rui <rui.zhang@xxxxxxxxx>
> Cc: Stephen Warren <swarren@xxxxxxxxxxxxx>
> Cc: Thierry Reding <thierry.reding@xxxxxxxxx>
> Cc: Alexandre Courbot <gnurou@xxxxxxxxx>
> Cc: linux-pm@xxxxxxxxxxxxxxx
> Cc: linux-tegra@xxxxxxxxxxxxxxx
> Cc: linux-kernel@xxxxxxxxxxxxxxx
> Signed-off-by: Eduardo Valentin <edubezval@xxxxxxxxx>
> ---
> drivers/thermal/tegra_soctherm.c | 31 +++++++++----------------------
> 1 file changed, 9 insertions(+), 22 deletions(-)
>
> diff --git a/drivers/thermal/tegra_soctherm.c b/drivers/thermal/tegra_soctherm.c
> index 74ea576..0018ccd 100644
> --- a/drivers/thermal/tegra_soctherm.c
> +++ b/drivers/thermal/tegra_soctherm.c
> @@ -168,7 +168,7 @@ struct tegra_soctherm {
> struct clk *clock_soctherm;
> void __iomem *regs;
>
> - struct thermal_zone_device *thermctl_tzs[4];
> +#define ZONE_NUMBER 4
> };
>
> struct tsensor_shared_calibration {
> @@ -342,7 +342,7 @@ static const struct thermctl_zone_desc t124_thermctl_temp_zones[] = {
> static int tegra_soctherm_probe(struct platform_device *pdev)
> {
> struct tegra_soctherm *tegra;
> - struct thermal_zone_device *tz;
> + struct thermal_zone_device *z;
> struct tsensor_shared_calibration shared_calib;
> struct resource *res;
> unsigned int i;
> @@ -408,36 +408,29 @@ static int tegra_soctherm_probe(struct platform_device *pdev)
>
> /* Initialize thermctl sensors */
>
> - for (i = 0; i < ARRAY_SIZE(tegra->thermctl_tzs); ++i) {
> + for (i = 0; i < ZONE_NUMBER; ++i) {
> struct tegra_thermctl_zone *zone =
> devm_kzalloc(&pdev->dev, sizeof(*zone), GFP_KERNEL);
> if (!zone) {
> err = -ENOMEM;
> - goto unregister_tzs;
> + goto disable_clocks;
> }
>
> zone->reg = tegra->regs + t124_thermctl_temp_zones[i].offset;
> zone->shift = t124_thermctl_temp_zones[i].shift;
>
> - tz = thermal_zone_of_sensor_register(&pdev->dev, i, zone,
> - &tegra_of_thermal_ops);
> - if (IS_ERR(tz)) {
> - err = PTR_ERR(tz);
> + z = devm_thermal_zone_of_sensor_register(&pdev->dev, i, zone,
I prefer to still use "tz", it seems this line isn't over 80 characters, or we
can add newline.
> + &tegra_of_thermal_ops);
> + if (IS_ERR(z)) {
> + err = PTR_ERR(z);
> dev_err(&pdev->dev, "failed to register sensor: %d\n",
> err);
> - goto unregister_tzs;
> + goto disable_clocks;
> }
> -
> - tegra->thermctl_tzs[i] = tz;
> }
>
> return 0;
>
> -unregister_tzs:
> - while (i--)
> - thermal_zone_of_sensor_unregister(&pdev->dev,
> - tegra->thermctl_tzs[i]);
> -
> disable_clocks:
> clk_disable_unprepare(tegra->clock_tsensor);
> clk_disable_unprepare(tegra->clock_soctherm);
> @@ -448,12 +441,6 @@ disable_clocks:
> static int tegra_soctherm_remove(struct platform_device *pdev)
> {
> struct tegra_soctherm *tegra = platform_get_drvdata(pdev);
> - unsigned int i;
> -
> - for (i = 0; i < ARRAY_SIZE(tegra->thermctl_tzs); ++i) {
> - thermal_zone_of_sensor_unregister(&pdev->dev,
> - tegra->thermctl_tzs[i]);
> - }
>
> clk_disable_unprepare(tegra->clock_tsensor);
> clk_disable_unprepare(tegra->clock_soctherm);
>
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