On 02/02/2015 05:19 PM, Ivan T. Ivanov wrote:
> Add support for the temperature alarm peripheral found inside
> Qualcomm plug-and-play (QPNP) PMIC chips. The temperature alarm
> peripheral outputs a pulse on an interrupt line whenever the
> thermal over temperature stage value changes.
>
> Register a thermal sensor. The temperature reported by this thermal
> sensor device should reflect the actual PMIC die temperature if an
> ADC is present on the given PMIC. If no ADC is present, then the
> reported temperature should be estimated from the over temperature
> stage value.
>
> Cc: David Collins <[email protected]>
> Signed-off-by: Ivan T. Ivanov <[email protected]>
> ---
>
<snip>
> +
> + ret = qpnp_tm_init(chip);
> + if (ret < 0) {
> + dev_err(&pdev->dev, "init failed\n");
> + goto fail;
> + }
> +
> + chip->tz_dev = thermal_zone_of_sensor_register(&pdev->dev, 0, chip,
> + &qpnp_tm_sensor_ops);
> + if (IS_ERR(chip->tz_dev)) {
> + dev_err(&pdev->dev, "failed to register sensor\n");
> + ret = PTR_ERR(chip->tz_dev);
> + goto fail;
> + }
> +
> + ret = devm_request_threaded_irq(&pdev->dev, irq, NULL, qpnp_tm_isr,
> + IRQF_ONESHOT, node->name, chip);
> + if (ret < 0)
> + goto unreg;
> +
> + return 0;
> +
> +unreg:
> + thermal_zone_of_sensor_unregister(&pdev->dev, chip->tz_dev);
Any problem to request_irq before thermal_zone_of_sensor_register? It
will avoid having thermal sensor unregister call.
> +fail:
> + if (!IS_ERR(chip->adc))
> + iio_channel_release(chip->adc);
> +
> + return ret;
> +}
<snip>
--
regards,
Stan
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