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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2026-08-19 10:09:22 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2026-08-19 10:09:22 -0700 |
| commit | f4cdf7ca9a1fdcca413157df19753f388a5a224e (patch) | |
| tree | 60a31895b2446cd7fa27514e8c2843534a0de0da /drivers/input/misc/ab8500-ponkey.c | |
| download | linux-stable-f4cdf7ca9a1fdcca413157df19753f388a5a224e.tar.gz linux-stable-f4cdf7ca9a1fdcca413157df19753f388a5a224e.zip | |
Merge tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-mediagrafted
Pull media updates from Mauro Carvalho Chehab:
- v4l2-core: added ISP statistics support and per-block validation
- v4l2-core: Allow unknown HDR10 white point and luminance
- New camera sensors: Sony IMX678 and IMX471m, Himax HM1092 IR sensor
- New codec: Milos: VPU v2.0 codec support
- isp driver: gained support for Dreamchip RPPX1 ISP framework
- vsp1 driver: gained support for RZ/T2H and RZ/N2H
- Novalake driver: gained CVS support for new NVL hardware
- dvb-core: fix feed leak on failed DMX_ADD_PID
- several driver fixes, cleanups and minor improvements
* tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (308 commits)
media: ipu-bridge: check all DMI entries when overriding sensor rotation
media: v4l2-async: avoid deleting unlinked ASC entry on link error
media: rzg2l-cru: Align bytesperline to hardware DMA stride requirement
media: intel/ipu6: fix async notifier cleanup leak on parse error
media: staging/ipu7: fix async notifier UAF on probe error path
media: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path
media: amd: isp4: release partial allocations in isp4if_alloc_fw_gpumem()
media: rcar-isp: Fix VSPX reference leaks
media: rcar-isp: Release ISPCORE resources
media: i2c: imx415: Release runtime PM reference on VBLANK error
media: i2c: imx415: Return test pattern write errors
media: renesas: vsp1: Declare index variables in for loop statement
media: renesas: vsp1: Make reset control optional to support platforms without a reset line
media: dt-bindings: media: renesas,vsp1: Document RZ/T2H and RZ/N2H SoCs
media: dt-bindings: media: renesas,fcp: Document RZ/T2H and RZ/N2H SoCs
media: nxp: imx8-isi: Add additional 32-bit RGB format support
media: nxp: imx8-isi: Add 16-bit raw Bayer format support
media: nxp: imx8-isi: Implement per-stream reference counting for multiplexed streams
media: nxp: imx8-isi: Use BIT_ULL() for 64-bit stream masks
media: nxp: imx8-isi: Correct color map between V4L2 and ISI
...
Diffstat (limited to 'drivers/input/misc/ab8500-ponkey.c')
| -rw-r--r-- | drivers/input/misc/ab8500-ponkey.c | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/drivers/input/misc/ab8500-ponkey.c b/drivers/input/misc/ab8500-ponkey.c new file mode 100644 index 000000000..a9b901368 --- /dev/null +++ b/drivers/input/misc/ab8500-ponkey.c @@ -0,0 +1,130 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (C) ST-Ericsson SA 2010 + * + * Author: Sundar Iyer <sundar.iyer@stericsson.com> for ST-Ericsson + * + * AB8500 Power-On Key handler + */ + +#include <linux/device.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/input.h> +#include <linux/interrupt.h> +#include <linux/mfd/abx500/ab8500.h> +#include <linux/of.h> +#include <linux/slab.h> + +/** + * struct ab8500_ponkey - ab8500 ponkey information + * @idev: pointer to input device + * @ab8500: ab8500 parent + * @irq_dbf: irq number for falling transition + * @irq_dbr: irq number for rising transition + */ +struct ab8500_ponkey { + struct input_dev *idev; + struct ab8500 *ab8500; + int irq_dbf; + int irq_dbr; +}; + +/* AB8500 gives us an interrupt when ONKEY is held */ +static irqreturn_t ab8500_ponkey_handler(int irq, void *data) +{ + struct ab8500_ponkey *ponkey = data; + + if (irq == ponkey->irq_dbf) + input_report_key(ponkey->idev, KEY_POWER, true); + else if (irq == ponkey->irq_dbr) + input_report_key(ponkey->idev, KEY_POWER, false); + + input_sync(ponkey->idev); + + return IRQ_HANDLED; +} + +static int ab8500_ponkey_probe(struct platform_device *pdev) +{ + struct ab8500 *ab8500 = dev_get_drvdata(pdev->dev.parent); + struct ab8500_ponkey *ponkey; + struct input_dev *input; + int irq_dbf, irq_dbr; + int error; + + irq_dbf = platform_get_irq_byname(pdev, "ONKEY_DBF"); + if (irq_dbf < 0) + return irq_dbf; + + irq_dbr = platform_get_irq_byname(pdev, "ONKEY_DBR"); + if (irq_dbr < 0) + return irq_dbr; + + ponkey = devm_kzalloc(&pdev->dev, sizeof(struct ab8500_ponkey), + GFP_KERNEL); + if (!ponkey) + return -ENOMEM; + + input = devm_input_allocate_device(&pdev->dev); + if (!input) + return -ENOMEM; + + ponkey->idev = input; + ponkey->ab8500 = ab8500; + ponkey->irq_dbf = irq_dbf; + ponkey->irq_dbr = irq_dbr; + + input->name = "AB8500 POn(PowerOn) Key"; + input->dev.parent = &pdev->dev; + + input_set_capability(input, EV_KEY, KEY_POWER); + + error = devm_request_any_context_irq(&pdev->dev, ponkey->irq_dbf, + ab8500_ponkey_handler, 0, + "ab8500-ponkey-dbf", ponkey); + if (error < 0) { + dev_err(ab8500->dev, "Failed to request dbf IRQ#%d: %d\n", + ponkey->irq_dbf, error); + return error; + } + + error = devm_request_any_context_irq(&pdev->dev, ponkey->irq_dbr, + ab8500_ponkey_handler, 0, + "ab8500-ponkey-dbr", ponkey); + if (error < 0) { + dev_err(ab8500->dev, "Failed to request dbr IRQ#%d: %d\n", + ponkey->irq_dbr, error); + return error; + } + + error = input_register_device(ponkey->idev); + if (error) { + dev_err(ab8500->dev, "Can't register input device: %d\n", error); + return error; + } + + return 0; +} + +#ifdef CONFIG_OF +static const struct of_device_id ab8500_ponkey_match[] = { + { .compatible = "stericsson,ab8500-ponkey", }, + {} +}; +MODULE_DEVICE_TABLE(of, ab8500_ponkey_match); +#endif + +static struct platform_driver ab8500_ponkey_driver = { + .driver = { + .name = "ab8500-poweron-key", + .of_match_table = of_match_ptr(ab8500_ponkey_match), + }, + .probe = ab8500_ponkey_probe, +}; +module_platform_driver(ab8500_ponkey_driver); + +MODULE_LICENSE("GPL v2"); +MODULE_AUTHOR("Sundar Iyer <sundar.iyer@stericsson.com>"); +MODULE_DESCRIPTION("ST-Ericsson AB8500 Power-ON(Pon) Key driver"); |
