4.19-stable review patch. If anyone has any objections, please let me know.
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From: Marek Szyprowski m.szyprowski@samsung.com
[ Upstream commit 865b080e3229102f160889328ce2e8e97aa65ea0 ]
Second interrupt is needed only when touchscreen mode is used, so don't request it unconditionally. This removes the following annoying warning during boot:
exynos-adc 14d10000.adc: error -ENXIO: IRQ index 1 not found
Fixes: 2bb8ad9b44c5 ("iio: exynos-adc: add experimental touchscreen support") Signed-off-by: Marek Szyprowski m.szyprowski@samsung.com Link: https://lore.kernel.org/r/20231009101412.916922-1-m.szyprowski@samsung.com Cc: Stable@vger.kernel.org Signed-off-by: Jonathan Cameron Jonathan.Cameron@huawei.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/iio/adc/exynos_adc.c | 24 ++++++++++++++---------- 1 file changed, 14 insertions(+), 10 deletions(-)
diff --git a/drivers/iio/adc/exynos_adc.c b/drivers/iio/adc/exynos_adc.c index 1ca2c4d39f878..7c5ea4ed5332f 100644 --- a/drivers/iio/adc/exynos_adc.c +++ b/drivers/iio/adc/exynos_adc.c @@ -817,6 +817,12 @@ static int exynos_adc_probe(struct platform_device *pdev) } }
+ /* leave out any TS related code if unreachable */ + if (IS_REACHABLE(CONFIG_INPUT)) { + has_ts = of_property_read_bool(pdev->dev.of_node, + "has-touchscreen") || pdata; + } + irq = platform_get_irq(pdev, 0); if (irq < 0) { dev_err(&pdev->dev, "no irq resource?\n"); @@ -824,11 +830,15 @@ static int exynos_adc_probe(struct platform_device *pdev) } info->irq = irq;
- irq = platform_get_irq(pdev, 1); - if (irq == -EPROBE_DEFER) - return irq; + if (has_ts) { + irq = platform_get_irq(pdev, 1); + if (irq == -EPROBE_DEFER) + return irq;
- info->tsirq = irq; + info->tsirq = irq; + } else { + info->tsirq = -1; + }
info->dev = &pdev->dev;
@@ -895,12 +905,6 @@ static int exynos_adc_probe(struct platform_device *pdev) if (info->data->init_hw) info->data->init_hw(info);
- /* leave out any TS related code if unreachable */ - if (IS_REACHABLE(CONFIG_INPUT)) { - has_ts = of_property_read_bool(pdev->dev.of_node, - "has-touchscreen") || pdata; - } - if (pdata) info->delay = pdata->delay; else