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authorLinus Torvalds <torvalds@linux-foundation.org>2017-11-14 18:01:46 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-11-14 18:01:46 -0800
commit4e4510fec4af08ead21f6934c1410af1f19a8cad (patch)
tree2bafab4f7cc2cdf2983186b24140f6303d4dfc8c /drivers/input/touchscreen
parent4008e6a9bcee2f3b61bb11951de0fb0ed764cb91 (diff)
parent7087cb8fad5e19113d82f47f351fc6b338948d5f (diff)
Merge tag 'sound-4.15-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai: "There are no big surprising changes in this cycle, yet not too boring, either. The biggest change from diffstat POV is the removal of the legacy OSS driver codes that have been already disabled for a long time. This will bring a few trivial merge conflicts. As new features in ASoC side, there are two things: a new AC97 bus implementation and AMD Stony platform support. Both include the relevant changes shared with other subsystems, e.g. AC97 MFD changes and DRM AMD changes. Some other highlighted topics are: - A bunch of USB-audio drivers got the hardening against the malicious device accesses with a new helper code for endpoint sanity check - Lots of cleanups for ASoC Intel platform code, including support for their open source audio firmware - Continued ASoC core componentization works - Support for scaling MCLK with sample rate in ASoC simple-card - Stabler PCM hot-unplug capability, especially for ASoC usages" * tag 'sound-4.15-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (302 commits) Documentation: sound: hd-audio: notes.rst ASoC: bcm2835: Support left/right justified and DSP modes ASoC: bcm2835: Enforce full symmetry ASoC: bcm2835: Support additional samplerates up to 384kHz ASoC: bcm2835: Add support for TDM modes ASoC: add mclk-fs support to audio graph card ASoC: add mclk-fs to audio graph card binding ASoC: rt5514: work around link error ASoC: rt5514: mark PM functions as __maybe_unused ASoC: rt5663: Check the JD status in the button pushing ASoC: amd: Modified DMA transfer Mechanism for Playback ASoC: rt5645: Wait for 400msec before concluding on value of RT5645_VENDOR_ID2 ASoC: sun4i-codec: fixed 32bit audio capture support for H3/H2+ ASoC: da7213: add support for DSP modes ASoC: sun8i-codec: Add a comment on the LRCK inversion ASoC: sun8i-codec: Set the BCLK divider ASoC: rt5663: Delay and retry reading rt5663 ID register ASoC: amd: use do_div rather than 64 bit division to fix 32 bit builds ASoC: cs42l56: Fix reset GPIO name in example DT binding ASoC: rt5514-spi: check irq status to schedule data copy in resume function ...
Diffstat (limited to 'drivers/input/touchscreen')
-rw-r--r--drivers/input/touchscreen/Kconfig2
-rw-r--r--drivers/input/touchscreen/wm97xx-core.c252
2 files changed, 171 insertions, 83 deletions
diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index 64b30fe273fd..176b1a74b2b7 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -727,7 +727,7 @@ config TOUCHSCREEN_WM831X
config TOUCHSCREEN_WM97XX
tristate "Support for WM97xx AC97 touchscreen controllers"
- depends on AC97_BUS
+ depends on AC97_BUS || AC97_BUS_NEW
help
Say Y here if you have a Wolfson Microelectronics WM97xx
touchscreen connected to your system. Note that this option
diff --git a/drivers/input/touchscreen/wm97xx-core.c b/drivers/input/touchscreen/wm97xx-core.c
index c9d1c91e1887..fd714ee881f7 100644
--- a/drivers/input/touchscreen/wm97xx-core.c
+++ b/drivers/input/touchscreen/wm97xx-core.c
@@ -44,6 +44,7 @@
#include <linux/pm.h>
#include <linux/interrupt.h>
#include <linux/bitops.h>
+#include <linux/mfd/wm97xx.h>
#include <linux/workqueue.h>
#include <linux/wm97xx.h>
#include <linux/uaccess.h>
@@ -581,27 +582,85 @@ static void wm97xx_ts_input_close(struct input_dev *idev)
wm->codec->acc_enable(wm, 0);
}
-static int wm97xx_probe(struct device *dev)
+static int wm97xx_register_touch(struct wm97xx *wm)
{
- struct wm97xx *wm;
- struct wm97xx_pdata *pdata = dev_get_platdata(dev);
- int ret = 0, id = 0;
+ struct wm97xx_pdata *pdata = dev_get_platdata(wm->dev);
+ int ret;
- wm = kzalloc(sizeof(struct wm97xx), GFP_KERNEL);
- if (!wm)
+ wm->input_dev = devm_input_allocate_device(wm->dev);
+ if (wm->input_dev == NULL)
return -ENOMEM;
- mutex_init(&wm->codec_mutex);
- wm->dev = dev;
- dev_set_drvdata(dev, wm);
- wm->ac97 = to_ac97_t(dev);
+ /* set up touch configuration */
+ wm->input_dev->name = "wm97xx touchscreen";
+ wm->input_dev->phys = "wm97xx";
+ wm->input_dev->open = wm97xx_ts_input_open;
+ wm->input_dev->close = wm97xx_ts_input_close;
+
+ __set_bit(EV_ABS, wm->input_dev->evbit);
+ __set_bit(EV_KEY, wm->input_dev->evbit);
+ __set_bit(BTN_TOUCH, wm->input_dev->keybit);
+
+ input_set_abs_params(wm->input_dev, ABS_X, abs_x[0], abs_x[1],
+ abs_x[2], 0);
+ input_set_abs_params(wm->input_dev, ABS_Y, abs_y[0], abs_y[1],
+ abs_y[2], 0);
+ input_set_abs_params(wm->input_dev, ABS_PRESSURE, abs_p[0], abs_p[1],
+ abs_p[2], 0);
+
+ input_set_drvdata(wm->input_dev, wm);
+ wm->input_dev->dev.parent = wm->dev;
+
+ ret = input_register_device(wm->input_dev);
+ if (ret)
+ return ret;
+
+ /*
+ * register our extended touch device (for machine specific
+ * extensions)
+ */
+ wm->touch_dev = platform_device_alloc("wm97xx-touch", -1);
+ if (!wm->touch_dev) {
+ ret = -ENOMEM;
+ goto touch_err;
+ }
+ platform_set_drvdata(wm->touch_dev, wm);
+ wm->touch_dev->dev.parent = wm->dev;
+ wm->touch_dev->dev.platform_data = pdata;
+ ret = platform_device_add(wm->touch_dev);
+ if (ret < 0)
+ goto touch_reg_err;
+
+ return 0;
+touch_reg_err:
+ platform_device_put(wm->touch_dev);
+touch_err:
+ input_unregister_device(wm->input_dev);
+ wm->input_dev = NULL;
+
+ return ret;
+}
+
+static void wm97xx_unregister_touch(struct wm97xx *wm)
+{
+ platform_device_unregister(wm->touch_dev);
+ input_unregister_device(wm->input_dev);
+ wm->input_dev = NULL;
+}
+
+static int _wm97xx_probe(struct wm97xx *wm)
+{
+ int id = 0;
+
+ mutex_init(&wm->codec_mutex);
+ dev_set_drvdata(wm->dev, wm);
/* check that we have a supported codec */
id = wm97xx_reg_read(wm, AC97_VENDOR_ID1);
if (id != WM97XX_ID1) {
- dev_err(dev, "Device with vendor %04x is not a wm97xx\n", id);
- ret = -ENODEV;
- goto alloc_err;
+ dev_err(wm->dev,
+ "Device with vendor %04x is not a wm97xx\n", id);
+ return -ENODEV;
}
wm->id = wm97xx_reg_read(wm, AC97_VENDOR_ID2);
@@ -629,8 +688,7 @@ static int wm97xx_probe(struct device *dev)
default:
dev_err(wm->dev, "Support for wm97%02x not compiled in.\n",
wm->id & 0xff);
- ret = -ENODEV;
- goto alloc_err;
+ return -ENODEV;
}
/* set up physical characteristics */
@@ -644,79 +702,58 @@ static int wm97xx_probe(struct device *dev)
wm->gpio[4] = wm97xx_reg_read(wm, AC97_GPIO_STATUS);
wm->gpio[5] = wm97xx_reg_read(wm, AC97_MISC_AFE);
- wm->input_dev = input_allocate_device();
- if (wm->input_dev == NULL) {
- ret = -ENOMEM;
- goto alloc_err;
- }
-
- /* set up touch configuration */
- wm->input_dev->name = "wm97xx touchscreen";
- wm->input_dev->phys = "wm97xx";
- wm->input_dev->open = wm97xx_ts_input_open;
- wm->input_dev->close = wm97xx_ts_input_close;
-
- __set_bit(EV_ABS, wm->input_dev->evbit);
- __set_bit(EV_KEY, wm->input_dev->evbit);
- __set_bit(BTN_TOUCH, wm->input_dev->keybit);
-
- input_set_abs_params(wm->input_dev, ABS_X, abs_x[0], abs_x[1],
- abs_x[2], 0);
- input_set_abs_params(wm->input_dev, ABS_Y, abs_y[0], abs_y[1],
- abs_y[2], 0);
- input_set_abs_params(wm->input_dev, ABS_PRESSURE, abs_p[0], abs_p[1],
- abs_p[2], 0);
+ return wm97xx_register_touch(wm);
+}
- input_set_drvdata(wm->input_dev, wm);
- wm->input_dev->dev.parent = dev;
+static void wm97xx_remove_battery(struct wm97xx *wm)
+{
+ platform_device_unregister(wm->battery_dev);
+}
- ret = input_register_device(wm->input_dev);
- if (ret < 0)
- goto dev_alloc_err;
+static int wm97xx_add_battery(struct wm97xx *wm,
+ struct wm97xx_batt_pdata *pdata)
+{
+ int ret;
- /* register our battery device */
wm->battery_dev = platform_device_alloc("wm97xx-battery", -1);
- if (!wm->battery_dev) {
- ret = -ENOMEM;
- goto batt_err;
- }
+ if (!wm->battery_dev)
+ return -ENOMEM;
+
platform_set_drvdata(wm->battery_dev, wm);
- wm->battery_dev->dev.parent = dev;
- wm->battery_dev->dev.platform_data = pdata ? pdata->batt_pdata : NULL;
+ wm->battery_dev->dev.parent = wm->dev;
+ wm->battery_dev->dev.platform_data = pdata;
ret = platform_device_add(wm->battery_dev);
- if (ret < 0)
- goto batt_reg_err;
+ if (ret)
+ platform_device_put(wm->battery_dev);
- /* register our extended touch device (for machine specific
- * extensions) */
- wm->touch_dev = platform_device_alloc("wm97xx-touch", -1);
- if (!wm->touch_dev) {
- ret = -ENOMEM;
- goto touch_err;
- }
- platform_set_drvdata(wm->touch_dev, wm);
- wm->touch_dev->dev.parent = dev;
- wm->touch_dev->dev.platform_data = pdata;
- ret = platform_device_add(wm->touch_dev);
+ return ret;
+}
+
+static int wm97xx_probe(struct device *dev)
+{
+ struct wm97xx *wm;
+ int ret;
+ struct wm97xx_pdata *pdata = dev_get_platdata(dev);
+
+ wm = devm_kzalloc(dev, sizeof(struct wm97xx), GFP_KERNEL);
+ if (!wm)
+ return -ENOMEM;
+
+ wm->dev = dev;
+ wm->ac97 = to_ac97_t(dev);
+
+ ret = _wm97xx_probe(wm);
+ if (ret)
+ return ret;
+
+ ret = wm97xx_add_battery(wm, pdata ? pdata->batt_pdata : NULL);
if (ret < 0)
- goto touch_reg_err;
+ goto batt_err;
return ret;
- touch_reg_err:
- platform_device_put(wm->touch_dev);
- touch_err:
- platform_device_del(wm->battery_dev);
- batt_reg_err:
- platform_device_put(wm->battery_dev);
- batt_err:
- input_unregister_device(wm->input_dev);
- wm->input_dev = NULL;
- dev_alloc_err:
- input_free_device(wm->input_dev);
- alloc_err:
- kfree(wm);
-
+batt_err:
+ wm97xx_unregister_touch(wm);
return ret;
}
@@ -724,14 +761,45 @@ static int wm97xx_remove(struct device *dev)
{
struct wm97xx *wm = dev_get_drvdata(dev);
- platform_device_unregister(wm->battery_dev);
- platform_device_unregister(wm->touch_dev);
- input_unregister_device(wm->input_dev);
- kfree(wm);
+ wm97xx_remove_battery(wm);
+ wm97xx_unregister_touch(wm);
return 0;
}
+static int wm97xx_mfd_probe(struct platform_device *pdev)
+{
+ struct wm97xx *wm;
+ struct wm97xx_platform_data *mfd_pdata = dev_get_platdata(&pdev->dev);
+ int ret;
+
+ wm = devm_kzalloc(&pdev->dev, sizeof(struct wm97xx), GFP_KERNEL);
+ if (!wm)
+ return -ENOMEM;
+
+ wm->dev = &pdev->dev;
+ wm->ac97 = mfd_pdata->ac97;
+
+ ret = _wm97xx_probe(wm);
+ if (ret)
+ return ret;
+
+ ret = wm97xx_add_battery(wm, mfd_pdata->batt_pdata);
+ if (ret < 0)
+ goto batt_err;
+
+ return ret;
+
+batt_err:
+ wm97xx_unregister_touch(wm);
+ return ret;
+}
+
+static int wm97xx_mfd_remove(struct platform_device *pdev)
+{
+ return wm97xx_remove(&pdev->dev);
+}
+
static int __maybe_unused wm97xx_suspend(struct device *dev)
{
struct wm97xx *wm = dev_get_drvdata(dev);
@@ -828,21 +896,41 @@ EXPORT_SYMBOL_GPL(wm97xx_unregister_mach_ops);
static struct device_driver wm97xx_driver = {
.name = "wm97xx-ts",
+#ifdef CONFIG_AC97_BUS
.bus = &ac97_bus_type,
+#endif
.owner = THIS_MODULE,
.probe = wm97xx_probe,
.remove = wm97xx_remove,
.pm = &wm97xx_pm_ops,
};
+static struct platform_driver wm97xx_mfd_driver = {
+ .driver = {
+ .name = "wm97xx-ts",
+ .pm = &wm97xx_pm_ops,
+ },
+ .probe = wm97xx_mfd_probe,
+ .remove = wm97xx_mfd_remove,
+};
+
static int __init wm97xx_init(void)
{
- return driver_register(&wm97xx_driver);
+ int ret;
+
+ ret = platform_driver_register(&wm97xx_mfd_driver);
+ if (ret)
+ return ret;
+
+ if (IS_BUILTIN(CONFIG_AC97_BUS))
+ ret = driver_register(&wm97xx_driver);
+ return ret;
}
static void __exit wm97xx_exit(void)
{
driver_unregister(&wm97xx_driver);
+ platform_driver_unregister(&wm97xx_mfd_driver);
}
module_init(wm97xx_init);

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