linux-kernel - [PATCH 3/5] iio: adc: exynos_adc: Drop platform data support

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Message-Id: <20250830-s3c-cleanup-adc-v1-3-de54dfb1d9ea@linaro.org>
Date: Sat, 30 Aug 2025 13:09:40 +0200
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Jonathan Cameron <jic23@...nel.org>, 
 David Lechner <dlechner@...libre.com>, 
 Nuno Sá <nuno.sa@...log.com>, 
 Andy Shevchenko <andy@...nel.org>, Krzysztof Kozlowski <krzk@...nel.org>, 
 Alim Akhtar <alim.akhtar@...sung.com>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>
Cc: linux-iio@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
 linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org, 
 devicetree@...r.kernel.org, 
 Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH 3/5] iio: adc: exynos_adc: Drop platform data support

There are no Samsung Exynos SoC ADC driver users which bind via platform
ID, thus platform data is never set and can be dropped.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
 drivers/iio/adc/exynos_adc.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/drivers/iio/adc/exynos_adc.c b/drivers/iio/adc/exynos_adc.c
index 30f6d8436e775a8d2177951b436cd45152307ea2..dd1494ee365a7b34d6b485ee4c9e753f50b5ff26 100644
--- a/drivers/iio/adc/exynos_adc.c
+++ b/drivers/iio/adc/exynos_adc.c
@@ -106,7 +106,6 @@ struct exynos_adc {
 	struct clk		*clk;
 	struct clk		*sclk;
 	unsigned int		irq;
-	unsigned int		delay;
 	struct regulator	*vdd;
 
 	struct completion	completion;
@@ -213,7 +212,7 @@ static void exynos_adc_v1_init_hw(struct exynos_adc *info)
 	writel(con1, ADC_V1_CON(info->regs));
 
 	/* set touchscreen delay */
-	writel(info->delay, ADC_V1_DLY(info->regs));
+	writel(10000, ADC_V1_DLY(info->regs));
 }
 
 static void exynos_adc_v1_exit_hw(struct exynos_adc *info)
@@ -556,7 +555,6 @@ static int exynos_adc_probe(struct platform_device *pdev)
 {
 	struct exynos_adc *info = NULL;
 	struct device_node *np = pdev->dev.of_node;
-	struct s3c2410_ts_mach_info *pdata = dev_get_platdata(&pdev->dev);
 	struct iio_dev *indio_dev = NULL;
 	int ret;
 	int irq;
@@ -657,11 +655,6 @@ static int exynos_adc_probe(struct platform_device *pdev)
 	if (info->data->init_hw)
 		info->data->init_hw(info);
 
-	if (pdata)
-		info->delay = pdata->delay;
-	else
-		info->delay = 10000;
-
 	ret = of_platform_populate(np, exynos_adc_match, NULL, &indio_dev->dev);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "failed adding child nodes\n");

-- 
2.48.1