forked from Minki/linux
media: sunxi-cir: Implement suspend/resume/shutdown callbacks
To save power, gate/reset the hardware block while the system is asleep or powered off. Acked-by: Maxime Ripard <mripard@kernel.org> Signed-off-by: Samuel Holland <samuel@sholland.org> Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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@ -234,6 +234,20 @@ static void sunxi_ir_hw_exit(struct device *dev)
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reset_control_assert(ir->rst);
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}
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static int __maybe_unused sunxi_ir_suspend(struct device *dev)
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{
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sunxi_ir_hw_exit(dev);
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return 0;
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}
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static int __maybe_unused sunxi_ir_resume(struct device *dev)
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{
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return sunxi_ir_hw_init(dev);
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}
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static SIMPLE_DEV_PM_OPS(sunxi_ir_pm_ops, sunxi_ir_suspend, sunxi_ir_resume);
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static int sunxi_ir_probe(struct platform_device *pdev)
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{
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int ret = 0;
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@ -362,6 +376,11 @@ static int sunxi_ir_remove(struct platform_device *pdev)
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return 0;
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}
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static void sunxi_ir_shutdown(struct platform_device *pdev)
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{
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sunxi_ir_hw_exit(&pdev->dev);
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}
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static const struct sunxi_ir_quirks sun4i_a10_ir_quirks = {
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.has_reset = false,
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.fifo_size = 16,
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@ -397,9 +416,11 @@ MODULE_DEVICE_TABLE(of, sunxi_ir_match);
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static struct platform_driver sunxi_ir_driver = {
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.probe = sunxi_ir_probe,
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.remove = sunxi_ir_remove,
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.shutdown = sunxi_ir_shutdown,
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.driver = {
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.name = SUNXI_IR_DEV,
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.of_match_table = sunxi_ir_match,
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.pm = &sunxi_ir_pm_ops,
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},
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};
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