forked from Minki/linux
Input: wm97xx: split out touchscreen registering
wm97xx-core does several things in it initialization : - touchscreen input device setup - battery device creation As the wm97xx is actually a multi-function device handling an audio codec, a touchscreen, a gpio block and an ADC, reshape the probing to isolate what is truly input/touchscreen specific from the remaining part. This is only code shuffling, there is no functional change. Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Robert Jarzmik
Mark Brown
parent
2bd6bf03f4
commit
c72f61e740
@ -581,27 +581,85 @@ static void wm97xx_ts_input_close(struct input_dev *idev)
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wm->codec->acc_enable(wm, 0);
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}
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static int wm97xx_probe(struct device *dev)
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static int wm97xx_register_touch(struct wm97xx *wm)
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{
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struct wm97xx *wm;
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struct wm97xx_pdata *pdata = dev_get_platdata(dev);
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int ret = 0, id = 0;
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struct wm97xx_pdata *pdata = dev_get_platdata(wm->dev);
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int ret;
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wm = kzalloc(sizeof(struct wm97xx), GFP_KERNEL);
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if (!wm)
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wm->input_dev = devm_input_allocate_device(wm->dev);
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if (wm->input_dev == NULL)
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return -ENOMEM;
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mutex_init(&wm->codec_mutex);
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wm->dev = dev;
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dev_set_drvdata(dev, wm);
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wm->ac97 = to_ac97_t(dev);
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/* set up touch configuration */
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wm->input_dev->name = "wm97xx touchscreen";
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wm->input_dev->phys = "wm97xx";
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wm->input_dev->open = wm97xx_ts_input_open;
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wm->input_dev->close = wm97xx_ts_input_close;
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__set_bit(EV_ABS, wm->input_dev->evbit);
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__set_bit(EV_KEY, wm->input_dev->evbit);
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__set_bit(BTN_TOUCH, wm->input_dev->keybit);
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input_set_abs_params(wm->input_dev, ABS_X, abs_x[0], abs_x[1],
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abs_x[2], 0);
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input_set_abs_params(wm->input_dev, ABS_Y, abs_y[0], abs_y[1],
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abs_y[2], 0);
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input_set_abs_params(wm->input_dev, ABS_PRESSURE, abs_p[0], abs_p[1],
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abs_p[2], 0);
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input_set_drvdata(wm->input_dev, wm);
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wm->input_dev->dev.parent = wm->dev;
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ret = input_register_device(wm->input_dev);
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if (ret)
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return ret;
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/*
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* register our extended touch device (for machine specific
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* extensions)
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*/
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wm->touch_dev = platform_device_alloc("wm97xx-touch", -1);
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if (!wm->touch_dev) {
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ret = -ENOMEM;
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goto touch_err;
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}
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platform_set_drvdata(wm->touch_dev, wm);
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wm->touch_dev->dev.parent = wm->dev;
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wm->touch_dev->dev.platform_data = pdata;
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ret = platform_device_add(wm->touch_dev);
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if (ret < 0)
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goto touch_reg_err;
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return 0;
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touch_reg_err:
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platform_device_put(wm->touch_dev);
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touch_err:
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input_unregister_device(wm->input_dev);
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wm->input_dev = NULL;
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return ret;
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}
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static void wm97xx_unregister_touch(struct wm97xx *wm)
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{
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platform_device_unregister(wm->touch_dev);
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input_unregister_device(wm->input_dev);
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wm->input_dev = NULL;
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}
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static int _wm97xx_probe(struct wm97xx *wm)
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{
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int id = 0;
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mutex_init(&wm->codec_mutex);
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dev_set_drvdata(wm->dev, wm);
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/* check that we have a supported codec */
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id = wm97xx_reg_read(wm, AC97_VENDOR_ID1);
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if (id != WM97XX_ID1) {
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dev_err(dev, "Device with vendor %04x is not a wm97xx\n", id);
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ret = -ENODEV;
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goto alloc_err;
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dev_err(wm->dev,
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"Device with vendor %04x is not a wm97xx\n", id);
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return -ENODEV;
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}
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wm->id = wm97xx_reg_read(wm, AC97_VENDOR_ID2);
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@ -629,8 +687,7 @@ static int wm97xx_probe(struct device *dev)
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default:
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dev_err(wm->dev, "Support for wm97%02x not compiled in.\n",
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wm->id & 0xff);
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ret = -ENODEV;
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goto alloc_err;
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return -ENODEV;
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}
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/* set up physical characteristics */
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@ -644,79 +701,58 @@ static int wm97xx_probe(struct device *dev)
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wm->gpio[4] = wm97xx_reg_read(wm, AC97_GPIO_STATUS);
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wm->gpio[5] = wm97xx_reg_read(wm, AC97_MISC_AFE);
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wm->input_dev = input_allocate_device();
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if (wm->input_dev == NULL) {
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ret = -ENOMEM;
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goto alloc_err;
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}
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return wm97xx_register_touch(wm);
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}
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/* set up touch configuration */
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wm->input_dev->name = "wm97xx touchscreen";
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wm->input_dev->phys = "wm97xx";
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wm->input_dev->open = wm97xx_ts_input_open;
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wm->input_dev->close = wm97xx_ts_input_close;
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static void wm97xx_remove_battery(struct wm97xx *wm)
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{
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platform_device_unregister(wm->battery_dev);
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}
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__set_bit(EV_ABS, wm->input_dev->evbit);
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__set_bit(EV_KEY, wm->input_dev->evbit);
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__set_bit(BTN_TOUCH, wm->input_dev->keybit);
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static int wm97xx_add_battery(struct wm97xx *wm,
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struct wm97xx_batt_pdata *pdata)
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{
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int ret;
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input_set_abs_params(wm->input_dev, ABS_X, abs_x[0], abs_x[1],
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abs_x[2], 0);
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input_set_abs_params(wm->input_dev, ABS_Y, abs_y[0], abs_y[1],
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abs_y[2], 0);
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input_set_abs_params(wm->input_dev, ABS_PRESSURE, abs_p[0], abs_p[1],
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abs_p[2], 0);
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input_set_drvdata(wm->input_dev, wm);
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wm->input_dev->dev.parent = dev;
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ret = input_register_device(wm->input_dev);
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if (ret < 0)
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goto dev_alloc_err;
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/* register our battery device */
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wm->battery_dev = platform_device_alloc("wm97xx-battery", -1);
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if (!wm->battery_dev) {
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ret = -ENOMEM;
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goto batt_err;
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}
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platform_set_drvdata(wm->battery_dev, wm);
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wm->battery_dev->dev.parent = dev;
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wm->battery_dev->dev.platform_data = pdata ? pdata->batt_pdata : NULL;
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ret = platform_device_add(wm->battery_dev);
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if (ret < 0)
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goto batt_reg_err;
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if (!wm->battery_dev)
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return -ENOMEM;
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/* register our extended touch device (for machine specific
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* extensions) */
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wm->touch_dev = platform_device_alloc("wm97xx-touch", -1);
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if (!wm->touch_dev) {
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ret = -ENOMEM;
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goto touch_err;
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}
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platform_set_drvdata(wm->touch_dev, wm);
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wm->touch_dev->dev.parent = dev;
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wm->touch_dev->dev.platform_data = pdata;
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ret = platform_device_add(wm->touch_dev);
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platform_set_drvdata(wm->battery_dev, wm);
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wm->battery_dev->dev.parent = wm->dev;
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wm->battery_dev->dev.platform_data = pdata;
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ret = platform_device_add(wm->battery_dev);
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if (ret)
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platform_device_put(wm->battery_dev);
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return ret;
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}
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static int wm97xx_probe(struct device *dev)
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{
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struct wm97xx *wm;
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int ret;
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struct wm97xx_pdata *pdata = dev_get_platdata(dev);
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wm = devm_kzalloc(dev, sizeof(struct wm97xx), GFP_KERNEL);
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if (!wm)
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return -ENOMEM;
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wm->dev = dev;
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wm->ac97 = to_ac97_t(dev);
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ret = _wm97xx_probe(wm);
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if (ret)
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return ret;
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ret = wm97xx_add_battery(wm, pdata ? pdata->batt_pdata : NULL);
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if (ret < 0)
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goto touch_reg_err;
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goto batt_err;
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return ret;
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touch_reg_err:
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platform_device_put(wm->touch_dev);
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touch_err:
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platform_device_del(wm->battery_dev);
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batt_reg_err:
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platform_device_put(wm->battery_dev);
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batt_err:
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input_unregister_device(wm->input_dev);
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wm->input_dev = NULL;
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dev_alloc_err:
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input_free_device(wm->input_dev);
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alloc_err:
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kfree(wm);
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batt_err:
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wm97xx_unregister_touch(wm);
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return ret;
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}
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@ -724,10 +760,8 @@ static int wm97xx_remove(struct device *dev)
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{
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struct wm97xx *wm = dev_get_drvdata(dev);
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platform_device_unregister(wm->battery_dev);
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platform_device_unregister(wm->touch_dev);
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input_unregister_device(wm->input_dev);
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kfree(wm);
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wm97xx_remove_battery(wm);
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wm97xx_unregister_touch(wm);
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return 0;
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}
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