Input: pmic8xxx-pwrkey - migrate to DT
The driver is only supported on DT enabled platforms. Convert the driver to DT so that it can probe properly. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Stephen Boyd
Dmitry Torokhov
parent
86ea5e6b79
commit
57918dfadf
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@ -0,0 +1,46 @@
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Qualcomm PM8xxx PMIC Power Key
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PROPERTIES
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- compatible:
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Usage: required
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Value type: <string>
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Definition: must be one of:
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"qcom,pm8058-pwrkey"
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"qcom,pm8921-pwrkey"
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- reg:
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Usage: required
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Value type: <prop-encoded-array>
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Definition: address of power key control register
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- interrupts:
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Usage: required
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Value type: <prop-encoded-array>
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Definition: the first interrupt specifies the key release interrupt
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and the second interrupt specifies the key press interrupt.
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The format of the specifier is defined by the binding
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document describing the node's interrupt parent.
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- debounce:
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Usage: optional
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Value type: <u32>
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Definition: time in microseconds that key must be pressed or release
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for state change interrupt to trigger.
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- pull-up:
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Usage: optional
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Value type: <empty>
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Definition: presence of this property indicates that the KPDPWR_N pin
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should be configured for pull up.
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EXAMPLE
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pwrkey@1c {
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compatible = "qcom,pm8921-pwrkey";
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reg = <0x1c>;
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interrupt-parent = <&pmicintc>;
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interrupts = <50 1>, <51 1>;
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debounce = <15625>;
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pull-up;
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};
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@ -19,8 +19,7 @@
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#include <linux/platform_device.h>
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#include <linux/regmap.h>
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#include <linux/log2.h>
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#include <linux/input/pmic8xxx-pwrkey.h>
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#include <linux/of.h>
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#define PON_CNTL_1 0x1C
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#define PON_CNTL_PULL_UP BIT(7)
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@ -89,15 +88,15 @@ static int pmic8xxx_pwrkey_probe(struct platform_device *pdev)
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unsigned int pon_cntl;
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struct regmap *regmap;
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struct pmic8xxx_pwrkey *pwrkey;
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const struct pm8xxx_pwrkey_platform_data *pdata =
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dev_get_platdata(&pdev->dev);
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u32 kpd_delay;
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bool pull_up;
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if (!pdata) {
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dev_err(&pdev->dev, "power key platform data not supplied\n");
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return -EINVAL;
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}
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if (of_property_read_u32(pdev->dev.of_node, "debounce", &kpd_delay))
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kpd_delay = 0;
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if (pdata->kpd_trigger_delay_us > 62500) {
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pull_up = of_property_read_bool(pdev->dev.of_node, "pull-up");
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if (kpd_delay > 62500) {
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dev_err(&pdev->dev, "invalid power key trigger delay\n");
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return -EINVAL;
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}
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@ -125,7 +124,7 @@ static int pmic8xxx_pwrkey_probe(struct platform_device *pdev)
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pwr->name = "pmic8xxx_pwrkey";
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pwr->phys = "pmic8xxx_pwrkey/input0";
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delay = (pdata->kpd_trigger_delay_us << 10) / USEC_PER_SEC;
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delay = (kpd_delay << 10) / USEC_PER_SEC;
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delay = 1 + ilog2(delay);
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err = regmap_read(regmap, PON_CNTL_1, &pon_cntl);
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@ -136,7 +135,7 @@ static int pmic8xxx_pwrkey_probe(struct platform_device *pdev)
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pon_cntl &= ~PON_CNTL_TRIG_DELAY_MASK;
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pon_cntl |= (delay & PON_CNTL_TRIG_DELAY_MASK);
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if (pdata->pull_up)
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if (pull_up)
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pon_cntl |= PON_CNTL_PULL_UP;
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else
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pon_cntl &= ~PON_CNTL_PULL_UP;
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@ -172,7 +171,7 @@ static int pmic8xxx_pwrkey_probe(struct platform_device *pdev)
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}
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platform_set_drvdata(pdev, pwrkey);
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device_init_wakeup(&pdev->dev, pdata->wakeup);
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device_init_wakeup(&pdev->dev, 1);
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return 0;
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}
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@ -184,13 +183,21 @@ static int pmic8xxx_pwrkey_remove(struct platform_device *pdev)
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return 0;
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}
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static const struct of_device_id pm8xxx_pwr_key_id_table[] = {
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{ .compatible = "qcom,pm8058-pwrkey" },
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{ .compatible = "qcom,pm8921-pwrkey" },
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{ }
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};
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MODULE_DEVICE_TABLE(of, pm8xxx_pwr_key_id_table);
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static struct platform_driver pmic8xxx_pwrkey_driver = {
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.probe = pmic8xxx_pwrkey_probe,
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.remove = pmic8xxx_pwrkey_remove,
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.driver = {
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.name = PM8XXX_PWRKEY_DEV_NAME,
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.name = "pm8xxx-pwrkey",
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.owner = THIS_MODULE,
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.pm = &pm8xxx_pwr_key_pm_ops,
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.of_match_table = pm8xxx_pwr_key_id_table,
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},
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};
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module_platform_driver(pmic8xxx_pwrkey_driver);
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@ -1,31 +0,0 @@
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/* Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef __PMIC8XXX_PWRKEY_H__
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#define __PMIC8XXX_PWRKEY_H__
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#define PM8XXX_PWRKEY_DEV_NAME "pm8xxx-pwrkey"
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/**
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* struct pm8xxx_pwrkey_platform_data - platform data for pwrkey driver
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* @pull up: power on register control for pull up/down configuration
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* @kpd_trigger_delay_us: time delay for power key state change interrupt
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* trigger.
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* @wakeup: configure power key as wakeup source
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*/
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struct pm8xxx_pwrkey_platform_data {
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bool pull_up;
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u32 kpd_trigger_delay_us;
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u32 wakeup;
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};
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#endif /* __PMIC8XXX_PWRKEY_H__ */
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