Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0+
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) //
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3) // Driver for the IMX SNVS ON/OFF Power Key
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4) // Copyright (C) 2015 Freescale Semiconductor, Inc. All Rights Reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6) #include <linux/clk.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) #include <linux/device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) #include <linux/err.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) #include <linux/input.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) #include <linux/interrupt.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #include <linux/io.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #include <linux/jiffies.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) #include <linux/of.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) #include <linux/of_address.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) #include <linux/platform_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) #include <linux/pm_wakeirq.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) #include <linux/mfd/syscon.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) #include <linux/regmap.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) #define SNVS_HPVIDR1_REG	0xF8
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) #define SNVS_LPSR_REG		0x4C	/* LP Status Register */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) #define SNVS_LPCR_REG		0x38	/* LP Control Register */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) #define SNVS_HPSR_REG		0x14
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) #define SNVS_HPSR_BTN		BIT(6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) #define SNVS_LPSR_SPO		BIT(18)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) #define SNVS_LPCR_DEP_EN	BIT(5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) #define DEBOUNCE_TIME		30
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) #define REPEAT_INTERVAL		60
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) struct pwrkey_drv_data {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 	struct regmap *snvs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 	int irq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 	int keycode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 	int keystate;  /* 1:pressed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 	int wakeup;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 	struct timer_list check_timer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 	struct input_dev *input;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 	u8 minor_rev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) static void imx_imx_snvs_check_for_events(struct timer_list *t)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 	struct pwrkey_drv_data *pdata = from_timer(pdata, t, check_timer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 	struct input_dev *input = pdata->input;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 	u32 state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 	regmap_read(pdata->snvs, SNVS_HPSR_REG, &state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 	state = state & SNVS_HPSR_BTN ? 1 : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 	/* only report new event if status changed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 	if (state ^ pdata->keystate) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 		pdata->keystate = state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 		input_event(input, EV_KEY, pdata->keycode, state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 		input_sync(input);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 		pm_relax(pdata->input->dev.parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 	/* repeat check if pressed long */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 	if (state) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 		mod_timer(&pdata->check_timer,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 			  jiffies + msecs_to_jiffies(REPEAT_INTERVAL));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) static irqreturn_t imx_snvs_pwrkey_interrupt(int irq, void *dev_id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 	struct platform_device *pdev = dev_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 	struct pwrkey_drv_data *pdata = platform_get_drvdata(pdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 	struct input_dev *input = pdata->input;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 	u32 lp_status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 	pm_wakeup_event(input->dev.parent, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 	regmap_read(pdata->snvs, SNVS_LPSR_REG, &lp_status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 	if (lp_status & SNVS_LPSR_SPO) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 		if (pdata->minor_rev == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 			/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 			 * The first generation i.MX6 SoCs only sends an
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 			 * interrupt on button release. To mimic power-key
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 			 * usage, we'll prepend a press event.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 			 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 			input_report_key(input, pdata->keycode, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 			input_sync(input);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 			input_report_key(input, pdata->keycode, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 			input_sync(input);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 			pm_relax(input->dev.parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 		} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 			mod_timer(&pdata->check_timer,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 			          jiffies + msecs_to_jiffies(DEBOUNCE_TIME));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 	/* clear SPO status */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 	regmap_write(pdata->snvs, SNVS_LPSR_REG, SNVS_LPSR_SPO);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 	return IRQ_HANDLED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) static void imx_snvs_pwrkey_disable_clk(void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 	clk_disable_unprepare(data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) static void imx_snvs_pwrkey_act(void *pdata)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 	struct pwrkey_drv_data *pd = pdata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 	del_timer_sync(&pd->check_timer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) static int imx_snvs_pwrkey_probe(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 	struct pwrkey_drv_data *pdata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 	struct input_dev *input;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 	struct device_node *np;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 	struct clk *clk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 	int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 	u32 vid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 	/* Get SNVS register Page */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 	np = pdev->dev.of_node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 	if (!np)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 		return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 	pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 	if (!pdata)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 	pdata->snvs = syscon_regmap_lookup_by_phandle(np, "regmap");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 	if (IS_ERR(pdata->snvs)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 		dev_err(&pdev->dev, "Can't get snvs syscon\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 		return PTR_ERR(pdata->snvs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 	if (of_property_read_u32(np, "linux,keycode", &pdata->keycode)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 		pdata->keycode = KEY_POWER;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 		dev_warn(&pdev->dev, "KEY_POWER without setting in dts\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 	clk = devm_clk_get_optional(&pdev->dev, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 	if (IS_ERR(clk)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 		dev_err(&pdev->dev, "Failed to get snvs clock (%pe)\n", clk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 		return PTR_ERR(clk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 	error = clk_prepare_enable(clk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 	if (error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 		dev_err(&pdev->dev, "Failed to enable snvs clock (%pe)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 			ERR_PTR(error));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 		return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 	error = devm_add_action_or_reset(&pdev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 					 imx_snvs_pwrkey_disable_clk, clk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 	if (error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 		dev_err(&pdev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 			"Failed to register clock cleanup handler (%pe)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 			ERR_PTR(error));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 		return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 	pdata->wakeup = of_property_read_bool(np, "wakeup-source");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 	pdata->irq = platform_get_irq(pdev, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 	if (pdata->irq < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 	regmap_read(pdata->snvs, SNVS_HPVIDR1_REG, &vid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 	pdata->minor_rev = vid & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 	regmap_update_bits(pdata->snvs, SNVS_LPCR_REG, SNVS_LPCR_DEP_EN, SNVS_LPCR_DEP_EN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 	/* clear the unexpected interrupt before driver ready */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 	regmap_write(pdata->snvs, SNVS_LPSR_REG, SNVS_LPSR_SPO);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 	timer_setup(&pdata->check_timer, imx_imx_snvs_check_for_events, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 	input = devm_input_allocate_device(&pdev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 	if (!input) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 		dev_err(&pdev->dev, "failed to allocate the input device\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 	input->name = pdev->name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 	input->phys = "snvs-pwrkey/input0";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 	input->id.bustype = BUS_HOST;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 	input_set_capability(input, EV_KEY, pdata->keycode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 	/* input customer action to cancel release timer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 	error = devm_add_action(&pdev->dev, imx_snvs_pwrkey_act, pdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 	if (error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 		dev_err(&pdev->dev, "failed to register remove action\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 		return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 	pdata->input = input;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 	platform_set_drvdata(pdev, pdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 	error = devm_request_irq(&pdev->dev, pdata->irq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 			       imx_snvs_pwrkey_interrupt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 			       0, pdev->name, pdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 	if (error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 		dev_err(&pdev->dev, "interrupt not available.\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 		return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 	error = input_register_device(input);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 	if (error < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 		dev_err(&pdev->dev, "failed to register input device\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 		return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 	device_init_wakeup(&pdev->dev, pdata->wakeup);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 	error = dev_pm_set_wake_irq(&pdev->dev, pdata->irq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 	if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 		dev_err(&pdev->dev, "irq wake enable failed.\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) static const struct of_device_id imx_snvs_pwrkey_ids[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 	{ .compatible = "fsl,sec-v4.0-pwrkey" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 	{ /* sentinel */ }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) MODULE_DEVICE_TABLE(of, imx_snvs_pwrkey_ids);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) static struct platform_driver imx_snvs_pwrkey_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 	.driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 		.name = "snvs_pwrkey",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 		.of_match_table = imx_snvs_pwrkey_ids,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 	.probe = imx_snvs_pwrkey_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) module_platform_driver(imx_snvs_pwrkey_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) MODULE_AUTHOR("Freescale Semiconductor");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) MODULE_DESCRIPTION("i.MX snvs power key Driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) MODULE_LICENSE("GPL");