Input: spear-keyboard - add device tree bindings
This adds simple DT bindings for spear-keyboard controller. Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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829c4f9690
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@ -19,6 +19,7 @@
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#include <linux/irq.h>
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#include <linux/irq.h>
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#include <linux/kernel.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/module.h>
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#include <linux/of.h>
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#include <linux/platform_device.h>
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#include <linux/platform_device.h>
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#include <linux/pm_wakeup.h>
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#include <linux/pm_wakeup.h>
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#include <linux/slab.h>
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#include <linux/slab.h>
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@ -63,6 +64,7 @@ struct spear_kbd {
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unsigned int mode;
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unsigned int mode;
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unsigned short last_key;
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unsigned short last_key;
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unsigned short keycodes[NUM_ROWS * NUM_COLS];
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unsigned short keycodes[NUM_ROWS * NUM_COLS];
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bool rep;
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};
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};
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static irqreturn_t spear_kbd_interrupt(int irq, void *dev_id)
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static irqreturn_t spear_kbd_interrupt(int irq, void *dev_id)
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@ -138,27 +140,49 @@ static void spear_kbd_close(struct input_dev *dev)
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kbd->last_key = KEY_RESERVED;
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kbd->last_key = KEY_RESERVED;
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}
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}
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#ifdef CONFIG_OF
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static int __devinit spear_kbd_parse_dt(struct platform_device *pdev,
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struct spear_kbd *kbd)
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{
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struct device_node *np = pdev->dev.of_node;
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int error;
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u32 val;
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if (!np) {
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dev_err(&pdev->dev, "Missing DT data\n");
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return -EINVAL;
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}
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if (of_property_read_bool(np, "autorepeat"))
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kbd->rep = true;
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error = of_property_read_u32(np, "st,mode", &val);
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if (error) {
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dev_err(&pdev->dev, "DT: Invalid or missing mode\n");
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return error;
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}
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kbd->mode = val;
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return 0;
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}
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#else
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static inline int spear_kbd_parse_dt(struct platform_device *pdev,
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struct spear_kbd *kbd)
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{
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return -ENOSYS;
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}
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#endif
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static int __devinit spear_kbd_probe(struct platform_device *pdev)
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static int __devinit spear_kbd_probe(struct platform_device *pdev)
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{
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{
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const struct kbd_platform_data *pdata = pdev->dev.platform_data;
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struct kbd_platform_data *pdata = dev_get_platdata(&pdev->dev);
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const struct matrix_keymap_data *keymap;
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const struct matrix_keymap_data *keymap = pdata ? pdata->keymap : NULL;
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struct spear_kbd *kbd;
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struct spear_kbd *kbd;
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struct input_dev *input_dev;
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struct input_dev *input_dev;
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struct resource *res;
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struct resource *res;
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int irq;
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int irq;
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int error;
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int error;
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if (!pdata) {
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dev_err(&pdev->dev, "Invalid platform data\n");
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return -EINVAL;
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}
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keymap = pdata->keymap;
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if (!keymap) {
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dev_err(&pdev->dev, "no keymap defined\n");
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return -EINVAL;
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}
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res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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if (!res) {
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if (!res) {
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dev_err(&pdev->dev, "no keyboard resource defined\n");
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dev_err(&pdev->dev, "no keyboard resource defined\n");
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@ -181,7 +205,15 @@ static int __devinit spear_kbd_probe(struct platform_device *pdev)
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kbd->input = input_dev;
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kbd->input = input_dev;
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kbd->irq = irq;
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kbd->irq = irq;
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if (!pdata) {
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error = spear_kbd_parse_dt(pdev, kbd);
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if (error)
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goto err_free_mem;
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} else {
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kbd->mode = pdata->mode;
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kbd->mode = pdata->mode;
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kbd->rep = pdata->rep;
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}
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kbd->res = request_mem_region(res->start, resource_size(res),
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kbd->res = request_mem_region(res->start, resource_size(res),
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pdev->name);
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pdev->name);
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@ -221,7 +253,7 @@ static int __devinit spear_kbd_probe(struct platform_device *pdev)
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goto err_put_clk;
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goto err_put_clk;
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}
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}
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if (pdata->rep)
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if (kbd->rep)
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__set_bit(EV_REP, input_dev->evbit);
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__set_bit(EV_REP, input_dev->evbit);
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input_set_capability(input_dev, EV_MSC, MSC_SCAN);
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input_set_capability(input_dev, EV_MSC, MSC_SCAN);
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@ -318,6 +350,14 @@ static int spear_kbd_resume(struct device *dev)
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static SIMPLE_DEV_PM_OPS(spear_kbd_pm_ops, spear_kbd_suspend, spear_kbd_resume);
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static SIMPLE_DEV_PM_OPS(spear_kbd_pm_ops, spear_kbd_suspend, spear_kbd_resume);
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#ifdef CONFIG_OF
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static const struct of_device_id spear_kbd_id_table[] = {
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{ .compatible = "st,spear300-kbd" },
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{}
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};
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MODULE_DEVICE_TABLE(of, spear_kbd_id_table);
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#endif
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static struct platform_driver spear_kbd_driver = {
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static struct platform_driver spear_kbd_driver = {
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.probe = spear_kbd_probe,
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.probe = spear_kbd_probe,
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.remove = __devexit_p(spear_kbd_remove),
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.remove = __devexit_p(spear_kbd_remove),
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@ -325,6 +365,7 @@ static struct platform_driver spear_kbd_driver = {
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.name = "keyboard",
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.name = "keyboard",
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.owner = THIS_MODULE,
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.owner = THIS_MODULE,
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.pm = &spear_kbd_pm_ops,
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.pm = &spear_kbd_pm_ops,
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.of_match_table = of_match_ptr(spear_kbd_id_table),
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},
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},
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};
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};
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module_platform_driver(spear_kbd_driver);
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module_platform_driver(spear_kbd_driver);
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