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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/mfd/lp87565.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/mfd/lp87565.c')
| -rw-r--r-- | drivers/mfd/lp87565.c | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/drivers/mfd/lp87565.c b/drivers/mfd/lp87565.c new file mode 100644 index 000000000..b78ae79df --- /dev/null +++ b/drivers/mfd/lp87565.c @@ -0,0 +1,126 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (C) 2017 Texas Instruments Incorporated - https://www.ti.com/ + * + * Author: Keerthy <j-keerthy@ti.com> + */ + +#include <linux/gpio/consumer.h> +#include <linux/i2c.h> +#include <linux/interrupt.h> +#include <linux/mfd/core.h> +#include <linux/module.h> +#include <linux/regmap.h> + +#include <linux/mfd/lp87565.h> + +static const struct regmap_config lp87565_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .max_register = LP87565_REG_MAX, +}; + +static const struct mfd_cell lp87565_cells[] = { + { .name = "lp87565-q1-regulator", }, + { .name = "lp87565-q1-gpio", }, +}; + +static const struct of_device_id of_lp87565_match_table[] = { + { .compatible = "ti,lp87565", }, + { + .compatible = "ti,lp87524-q1", + .data = (void *)LP87565_DEVICE_TYPE_LP87524_Q1, + }, + { + .compatible = "ti,lp87565-q1", + .data = (void *)LP87565_DEVICE_TYPE_LP87565_Q1, + }, + { + .compatible = "ti,lp87561-q1", + .data = (void *)LP87565_DEVICE_TYPE_LP87561_Q1, + }, + {} +}; +MODULE_DEVICE_TABLE(of, of_lp87565_match_table); + +static int lp87565_probe(struct i2c_client *client) +{ + struct lp87565 *lp87565; + int ret; + unsigned int otpid; + + lp87565 = devm_kzalloc(&client->dev, sizeof(*lp87565), GFP_KERNEL); + if (!lp87565) + return -ENOMEM; + + lp87565->dev = &client->dev; + + lp87565->regmap = devm_regmap_init_i2c(client, &lp87565_regmap_config); + if (IS_ERR(lp87565->regmap)) { + ret = PTR_ERR(lp87565->regmap); + dev_err(lp87565->dev, + "Failed to initialize register map: %d\n", ret); + return ret; + } + + lp87565->reset_gpio = devm_gpiod_get_optional(lp87565->dev, "reset", + GPIOD_OUT_LOW); + if (IS_ERR(lp87565->reset_gpio)) { + ret = PTR_ERR(lp87565->reset_gpio); + if (ret == -EPROBE_DEFER) + return ret; + } + + if (lp87565->reset_gpio) { + gpiod_set_value_cansleep(lp87565->reset_gpio, 1); + /* The minimum assertion time is undocumented, just guess */ + usleep_range(2000, 4000); + + gpiod_set_value_cansleep(lp87565->reset_gpio, 0); + /* Min 1.2 ms before first I2C transaction */ + usleep_range(1500, 3000); + } + + ret = regmap_read(lp87565->regmap, LP87565_REG_OTP_REV, &otpid); + if (ret) { + dev_err(lp87565->dev, "Failed to read OTP ID\n"); + return ret; + } + + lp87565->rev = otpid & LP87565_OTP_REV_OTP_ID; + lp87565->dev_type = (uintptr_t)i2c_get_match_data(client); + + i2c_set_clientdata(client, lp87565); + + return devm_mfd_add_devices(lp87565->dev, PLATFORM_DEVID_AUTO, + lp87565_cells, ARRAY_SIZE(lp87565_cells), + NULL, 0, NULL); +} + +static void lp87565_shutdown(struct i2c_client *client) +{ + struct lp87565 *lp87565 = i2c_get_clientdata(client); + + gpiod_set_value_cansleep(lp87565->reset_gpio, 1); +} + +static const struct i2c_device_id lp87565_id_table[] = { + { "lp87565-q1" }, + { } +}; +MODULE_DEVICE_TABLE(i2c, lp87565_id_table); + +static struct i2c_driver lp87565_driver = { + .driver = { + .name = "lp87565", + .of_match_table = of_lp87565_match_table, + }, + .probe = lp87565_probe, + .shutdown = lp87565_shutdown, + .id_table = lp87565_id_table, +}; +module_i2c_driver(lp87565_driver); + +MODULE_AUTHOR("J Keerthy <j-keerthy@ti.com>"); +MODULE_DESCRIPTION("lp87565 chip family Multi-Function Device driver"); +MODULE_LICENSE("GPL v2"); |
