mfd: Add asic3 based LED suspend/resume handlers
Added led suspend/resume handlers to the leds/leds-asic3 and mfd/asic3 drivers. On suspend the leds will be turned off and their clocks disabled. On resume the reverse. Signed-off-by: Paul Parsons <lost.distance@yahoo.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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2 changed files with 53 additions and 1 deletions
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@ -107,9 +107,10 @@ static int __devinit asic3_led_probe(struct platform_device *pdev)
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}
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}
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led->cdev->name = led->name;
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led->cdev->name = led->name;
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led->cdev->default_trigger = led->default_trigger;
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led->cdev->flags = LED_CORE_SUSPENDRESUME;
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led->cdev->brightness_set = brightness_set;
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led->cdev->brightness_set = brightness_set;
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led->cdev->blink_set = blink_set;
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led->cdev->blink_set = blink_set;
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led->cdev->default_trigger = led->default_trigger;
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ret = led_classdev_register(&pdev->dev, led->cdev);
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ret = led_classdev_register(&pdev->dev, led->cdev);
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if (ret < 0)
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if (ret < 0)
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@ -136,12 +137,44 @@ static int __devexit asic3_led_remove(struct platform_device *pdev)
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return mfd_cell_disable(pdev);
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return mfd_cell_disable(pdev);
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}
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}
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static int asic3_led_suspend(struct device *dev)
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{
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struct platform_device *pdev = to_platform_device(dev);
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const struct mfd_cell *cell = mfd_get_cell(pdev);
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int ret;
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ret = 0;
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if (cell->suspend)
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ret = (*cell->suspend)(pdev);
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return ret;
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}
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static int asic3_led_resume(struct device *dev)
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{
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struct platform_device *pdev = to_platform_device(dev);
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const struct mfd_cell *cell = mfd_get_cell(pdev);
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int ret;
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ret = 0;
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if (cell->resume)
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ret = (*cell->resume)(pdev);
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return ret;
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}
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static const struct dev_pm_ops asic3_led_pm_ops = {
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.suspend = asic3_led_suspend,
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.resume = asic3_led_resume,
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};
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static struct platform_driver asic3_led_driver = {
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static struct platform_driver asic3_led_driver = {
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.probe = asic3_led_probe,
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.probe = asic3_led_probe,
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.remove = __devexit_p(asic3_led_remove),
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.remove = __devexit_p(asic3_led_remove),
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.driver = {
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.driver = {
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.name = "leds-asic3",
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.name = "leds-asic3",
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.owner = THIS_MODULE,
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.owner = THIS_MODULE,
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.pm = &asic3_led_pm_ops,
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},
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},
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};
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};
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@ -813,24 +813,43 @@ static int asic3_leds_disable(struct platform_device *pdev)
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return 0;
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return 0;
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}
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}
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static int asic3_leds_suspend(struct platform_device *pdev)
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{
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const struct mfd_cell *cell = mfd_get_cell(pdev);
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struct asic3 *asic = dev_get_drvdata(pdev->dev.parent);
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while (asic3_gpio_get(&asic->gpio, ASIC3_GPIO(C, cell->id)) != 0)
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msleep(1);
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asic3_clk_disable(asic, &asic->clocks[clock_ledn[cell->id]]);
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return 0;
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}
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static struct mfd_cell asic3_cell_leds[ASIC3_NUM_LEDS] = {
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static struct mfd_cell asic3_cell_leds[ASIC3_NUM_LEDS] = {
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[0] = {
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[0] = {
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.name = "leds-asic3",
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.name = "leds-asic3",
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.id = 0,
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.id = 0,
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.enable = asic3_leds_enable,
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.enable = asic3_leds_enable,
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.disable = asic3_leds_disable,
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.disable = asic3_leds_disable,
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.suspend = asic3_leds_suspend,
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.resume = asic3_leds_enable,
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},
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},
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[1] = {
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[1] = {
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.name = "leds-asic3",
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.name = "leds-asic3",
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.id = 1,
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.id = 1,
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.enable = asic3_leds_enable,
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.enable = asic3_leds_enable,
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.disable = asic3_leds_disable,
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.disable = asic3_leds_disable,
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.suspend = asic3_leds_suspend,
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.resume = asic3_leds_enable,
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},
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},
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[2] = {
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[2] = {
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.name = "leds-asic3",
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.name = "leds-asic3",
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.id = 2,
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.id = 2,
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.enable = asic3_leds_enable,
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.enable = asic3_leds_enable,
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.disable = asic3_leds_disable,
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.disable = asic3_leds_disable,
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.suspend = asic3_leds_suspend,
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.resume = asic3_leds_enable,
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},
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},
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};
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};
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