ed5c2f5fd1
The value returned by an i2c driver's remove function is mostly ignored. (Only an error message is printed if the value is non-zero that the error is ignored.) So change the prototype of the remove function to return no value. This way driver authors are not tempted to assume that passing an error to the upper layer is a good idea. All drivers are adapted accordingly. There is no intended change of behaviour, all callbacks were prepared to return 0 before. Reviewed-by: Peter Senna Tschudin <peter.senna@gmail.com> Reviewed-by: Jeremy Kerr <jk@codeconstruct.com.au> Reviewed-by: Benjamin Mugnier <benjamin.mugnier@foss.st.com> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Crt Mori <cmo@melexis.com> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Marek Behún <kabel@kernel.org> # for leds-turris-omnia Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Petr Machata <petrm@nvidia.com> # for mlxsw Reviewed-by: Maximilian Luz <luzmaximilian@gmail.com> # for surface3_power Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> # for bmc150-accel-i2c + kxcjk-1013 Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> # for media/* + staging/media/* Acked-by: Miguel Ojeda <ojeda@kernel.org> # for auxdisplay/ht16k33 + auxdisplay/lcd2s Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> # for versaclock5 Reviewed-by: Ajay Gupta <ajayg@nvidia.com> # for ucsi_ccg Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> # for iio Acked-by: Peter Rosin <peda@axentia.se> # for i2c-mux-*, max9860 Acked-by: Adrien Grassein <adrien.grassein@gmail.com> # for lontium-lt8912b Reviewed-by: Jean Delvare <jdelvare@suse.de> # for hwmon, i2c-core and i2c/muxes Acked-by: Corey Minyard <cminyard@mvista.com> # for IPMI Reviewed-by: Vladimir Oltean <olteanv@gmail.com> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com> # for drivers/power Acked-by: Krzysztof Hałasa <khalasa@piap.pl> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Wolfram Sang <wsa@kernel.org>
43 lines
1.2 KiB
C
43 lines
1.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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#ifndef I2C_HID_H
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#define I2C_HID_H
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#include <linux/i2c.h>
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#ifdef CONFIG_DMI
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struct i2c_hid_desc *i2c_hid_get_dmi_i2c_hid_desc_override(uint8_t *i2c_name);
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char *i2c_hid_get_dmi_hid_report_desc_override(uint8_t *i2c_name,
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unsigned int *size);
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#else
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static inline struct i2c_hid_desc
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*i2c_hid_get_dmi_i2c_hid_desc_override(uint8_t *i2c_name)
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{ return NULL; }
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static inline char *i2c_hid_get_dmi_hid_report_desc_override(uint8_t *i2c_name,
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unsigned int *size)
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{ return NULL; }
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#endif
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/**
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* struct i2chid_ops - Ops provided to the core.
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*
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* @power_up: do sequencing to power up the device.
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* @power_down: do sequencing to power down the device.
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* @shutdown_tail: called at the end of shutdown.
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*/
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struct i2chid_ops {
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int (*power_up)(struct i2chid_ops *ops);
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void (*power_down)(struct i2chid_ops *ops);
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void (*shutdown_tail)(struct i2chid_ops *ops);
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};
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int i2c_hid_core_probe(struct i2c_client *client, struct i2chid_ops *ops,
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u16 hid_descriptor_address, u32 quirks);
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void i2c_hid_core_remove(struct i2c_client *client);
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void i2c_hid_core_shutdown(struct i2c_client *client);
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extern const struct dev_pm_ops i2c_hid_core_pm;
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#endif
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