diff options
| author | Zelong Dong <zelong.dong@amlogic.com> | 2024-07-03 17:38:58 +0800 |
|---|---|---|
| committer | Hans Verkuil <hverkuil-cisco@xs4all.nl> | 2024-07-31 11:21:56 +0200 |
| commit | 512d1899b8968cde259ab9b9980fa51df1394128 (patch) | |
| tree | cd18fb4e41820258306ef2560894912f13283a06 | |
| parent | 8400291e289ee6b2bf9779ff1c83a291501f017b (diff) | |
media: rc: meson-ir: support PM suspend/resume
IR Controller could be used and updated by other processor
while kernel has been suspended.
Reinitialize IR Controller just in case while kernel is resuming.
Signed-off-by: Zelong Dong <zelong.dong@amlogic.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
| -rw-r--r-- | drivers/media/rc/meson-ir.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/media/rc/meson-ir.c b/drivers/media/rc/meson-ir.c index 5303e6da5809..9cdb45821ecc 100644 --- a/drivers/media/rc/meson-ir.c +++ b/drivers/media/rc/meson-ir.c @@ -567,6 +567,32 @@ static void meson_ir_shutdown(struct platform_device *pdev) spin_unlock_irqrestore(&ir->lock, flags); } +static __maybe_unused int meson_ir_resume(struct device *dev) +{ + struct meson_ir *ir = dev_get_drvdata(dev); + + if (ir->param->support_hw_decoder) + meson_ir_hw_decoder_init(ir->rc, &ir->rc->enabled_protocols); + else + meson_ir_sw_decoder_init(ir->rc); + + return 0; +} + +static __maybe_unused int meson_ir_suspend(struct device *dev) +{ + struct meson_ir *ir = dev_get_drvdata(dev); + unsigned long flags; + + spin_lock_irqsave(&ir->lock, flags); + regmap_update_bits(ir->reg, IR_DEC_REG1, IR_DEC_REG1_ENABLE, 0); + spin_unlock_irqrestore(&ir->lock, flags); + + return 0; +} + +static SIMPLE_DEV_PM_OPS(meson_ir_pm_ops, meson_ir_suspend, meson_ir_resume); + static const struct meson_ir_param meson6_ir_param = { .support_hw_decoder = false, .max_register = IR_DEC_REG1, @@ -607,6 +633,7 @@ static struct platform_driver meson_ir_driver = { .driver = { .name = DRIVER_NAME, .of_match_table = meson_ir_match, + .pm = pm_ptr(&meson_ir_pm_ops), }, }; |