Merge tag 'v5.4.161' into toradex_5.4.y

This is the 5.4.161 stable release

1 files changed, 29 insertions, 0 deletions

diff --git a/drivers/input/keyboard/snvs_pwrkey.c b/drivers/input/keyboard/snvs_pwrkey.c
index e76b7a400a1c..248bb86f4b3f 100644
--- a/drivers/input/keyboard/snvs_pwrkey.c
+++ b/drivers/input/keyboard/snvs_pwrkey.c
@@ -3,6 +3,7 @@
 // Driver for the IMX SNVS ON/OFF Power Key
 // Copyright (C) 2015 Freescale Semiconductor, Inc. All Rights Reserved.
 
+#include <linux/clk.h>
 #include <linux/device.h>
 #include <linux/err.h>
 #include <linux/init.h>
@@ -81,6 +82,11 @@ static irqreturn_t imx_snvs_pwrkey_interrupt(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
+static void imx_snvs_pwrkey_disable_clk(void *data)
+{
+	clk_disable_unprepare(data);
+}
+
 static void imx_snvs_pwrkey_act(void *pdata)
 {
 	struct pwrkey_drv_data *pd = pdata;
@@ -93,6 +99,7 @@ static int imx_snvs_pwrkey_probe(struct platform_device *pdev)
 	struct pwrkey_drv_data *pdata = NULL;
 	struct input_dev *input = NULL;
 	struct device_node *np;
+	struct clk *clk;
 	int error;
 
 	/* Get SNVS register Page */
@@ -115,6 +122,28 @@ static int imx_snvs_pwrkey_probe(struct platform_device *pdev)
 		dev_warn(&pdev->dev, "KEY_POWER without setting in dts\n");
 	}
 
+	clk = devm_clk_get_optional(&pdev->dev, NULL);
+	if (IS_ERR(clk)) {
+		dev_err(&pdev->dev, "Failed to get snvs clock (%pe)\n", clk);
+		return PTR_ERR(clk);
+	}
+
+	error = clk_prepare_enable(clk);
+	if (error) {
+		dev_err(&pdev->dev, "Failed to enable snvs clock (%pe)\n",
+			ERR_PTR(error));
+		return error;
+	}
+
+	error = devm_add_action_or_reset(&pdev->dev,
+					 imx_snvs_pwrkey_disable_clk, clk);
+	if (error) {
+		dev_err(&pdev->dev,
+			"Failed to register clock cleanup handler (%pe)\n",
+			ERR_PTR(error));
+		return error;
+	}
+
 	pdata->wakeup = of_property_read_bool(np, "wakeup-source");
 
 	pdata->irq = platform_get_irq(pdev, 0);