From 333e07ec4b3397f16f34b2eabae703a2885f3558 Mon Sep 17 00:00:00 2001 From: Vignesh R Date: Sat, 30 Jun 2018 16:03:15 +0530 Subject: [PATCH] Input: ti_am335x_tsc: Mark TSC device as wakeup source Instead of TSCADC MFD device, mark TSC as wakeup source and change all wakeup related PM calls to operate on TSC device. Signed-off-by: Vignesh R Acked-by: Dmitry Torokhov Signed-off-by: Lee Jones --- drivers/input/touchscreen/ti_am335x_tsc.c | 16 +++++++++++----- 1 file changed, 11 insertions(+), 5 deletions(-) diff --git a/drivers/input/touchscreen/ti_am335x_tsc.c b/drivers/input/touchscreen/ti_am335x_tsc.c index b86c1e5fbc11..a4f25a915ffc 100644 --- a/drivers/input/touchscreen/ti_am335x_tsc.c +++ b/drivers/input/touchscreen/ti_am335x_tsc.c @@ -46,6 +46,7 @@ static const int config_pins[] = { struct titsc { struct input_dev *input; struct ti_tscadc_dev *mfd_tscadc; + struct device *dev; unsigned int irq; unsigned int wires; unsigned int x_plate_resistance; @@ -276,7 +277,7 @@ static irqreturn_t titsc_irq(int irq, void *dev) if (status & IRQENB_HW_PEN) { ts_dev->pen_down = true; irqclr |= IRQENB_HW_PEN; - pm_stay_awake(ts_dev->mfd_tscadc->dev); + pm_stay_awake(ts_dev->dev); } if (status & IRQENB_PENUP) { @@ -286,7 +287,7 @@ static irqreturn_t titsc_irq(int irq, void *dev) input_report_key(input_dev, BTN_TOUCH, 0); input_report_abs(input_dev, ABS_PRESSURE, 0); input_sync(input_dev); - pm_relax(ts_dev->mfd_tscadc->dev); + pm_relax(ts_dev->dev); } else { ts_dev->pen_down = true; } @@ -422,6 +423,7 @@ static int titsc_probe(struct platform_device *pdev) ts_dev->mfd_tscadc = tscadc_dev; ts_dev->input = input_dev; ts_dev->irq = tscadc_dev->irq; + ts_dev->dev = &pdev->dev; err = titsc_parse_dt(pdev, ts_dev); if (err) { @@ -436,6 +438,8 @@ static int titsc_probe(struct platform_device *pdev) goto err_free_mem; } + device_init_wakeup(&pdev->dev, true); + titsc_writel(ts_dev, REG_IRQSTATUS, TSC_IRQENB_MASK); titsc_writel(ts_dev, REG_IRQENABLE, IRQENB_FIFO0THRES); titsc_writel(ts_dev, REG_IRQENABLE, IRQENB_EOS); @@ -467,6 +471,7 @@ static int titsc_probe(struct platform_device *pdev) return 0; err_free_irq: + device_init_wakeup(&pdev->dev, false); free_irq(ts_dev->irq, ts_dev); err_free_mem: input_free_device(input_dev); @@ -479,6 +484,7 @@ static int titsc_remove(struct platform_device *pdev) struct titsc *ts_dev = platform_get_drvdata(pdev); u32 steps; + device_init_wakeup(&pdev->dev, false); free_irq(ts_dev->irq, ts_dev); /* total steps followed by the enable mask */ @@ -499,7 +505,7 @@ static int __maybe_unused titsc_suspend(struct device *dev) unsigned int idle; tscadc_dev = ti_tscadc_dev_get(to_platform_device(dev)); - if (device_may_wakeup(tscadc_dev->dev)) { + if (device_may_wakeup(dev)) { titsc_writel(ts_dev, REG_IRQSTATUS, TSC_IRQENB_MASK); idle = titsc_readl(ts_dev, REG_IRQENABLE); titsc_writel(ts_dev, REG_IRQENABLE, @@ -515,11 +521,11 @@ static int __maybe_unused titsc_resume(struct device *dev) struct ti_tscadc_dev *tscadc_dev; tscadc_dev = ti_tscadc_dev_get(to_platform_device(dev)); - if (device_may_wakeup(tscadc_dev->dev)) { + if (device_may_wakeup(dev)) { titsc_writel(ts_dev, REG_IRQWAKEUP, 0x00); titsc_writel(ts_dev, REG_IRQCLR, IRQENB_HW_PEN); - pm_relax(ts_dev->mfd_tscadc->dev); + pm_relax(dev); } titsc_step_config(ts_dev); titsc_writel(ts_dev, REG_FIFO0THR, -- 2.30.2