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leds: flash: mt6370: Add MediaTek MT6370 flashlight support
The MediaTek MT6370 is a highly-integrated smart power management IC, which includes a single cell Li-Ion/Li-Polymer switching battery charger, a USB Type-C & Power Delivery (PD) controller, dual Flash LED current sources, a RGB LED driver, a backlight WLED driver, a display bias driver and a general LDO for portable devices. Add support for the MT6370 Flash LED driver. Flash LED in MT6370 has 2 channels and support torch/strobe mode. Co-developed-by: Alice Chen <alice_chen@richtek.com> Signed-off-by: Alice Chen <alice_chen@richtek.com> Signed-off-by: ChiYuan Huang <cy_huang@richtek.com> Signed-off-by: ChiaEn Wu <chiaen_wu@richtek.com> Acked-by: Jacek Anaszewski <jacek.anaszewski@gmail.com> Signed-off-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/52480420a160e5a4c71715fbbf105e684a16e7c2.1678430444.git.chiaen_wu@richtek.com
This commit is contained in:
parent
5c38376ef5
commit
fa31e4221c
@ -61,6 +61,19 @@ config LEDS_MT6360
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Independent current sources supply for each flash LED support torch
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and strobe mode.
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config LEDS_MT6370_FLASH
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tristate "Flash LED Support for MediaTek MT6370 PMIC"
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depends on LEDS_CLASS
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depends on V4L2_FLASH_LED_CLASS || !V4L2_FLASH_LED_CLASS
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depends on MFD_MT6370
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help
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Support 2 channels and torch/strobe mode.
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Say Y here to enable support for
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MT6370_FLASH_LED device.
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This driver can also be built as a module. If so, the module
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will be called "leds-mt6370-flash".
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config LEDS_QCOM_FLASH
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tristate "LED support for flash module inside Qualcomm Technologies, Inc. PMIC"
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depends on MFD_SPMI_PMIC || COMPILE_TEST
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@ -1,6 +1,7 @@
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# SPDX-License-Identifier: GPL-2.0
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obj-$(CONFIG_LEDS_MT6360) += leds-mt6360.o
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obj-$(CONFIG_LEDS_MT6370_FLASH) += leds-mt6370-flash.o
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obj-$(CONFIG_LEDS_AAT1290) += leds-aat1290.o
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obj-$(CONFIG_LEDS_AS3645A) += leds-as3645a.o
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obj-$(CONFIG_LEDS_KTD2692) += leds-ktd2692.o
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drivers/leds/flash/leds-mt6370-flash.c
Normal file
573
drivers/leds/flash/leds-mt6370-flash.c
Normal file
@ -0,0 +1,573 @@
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// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (C) 2023 Richtek Technology Corp.
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*
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* Authors:
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* Alice Chen <alice_chen@richtek.com>
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* ChiYuan Huang <cy_huang@richtek.com>
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*/
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#include <linux/bitops.h>
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#include <linux/delay.h>
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#include <linux/init.h>
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#include <linux/interrupt.h>
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#include <linux/kernel.h>
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#include <linux/led-class-flash.h>
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#include <linux/module.h>
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#include <linux/mutex.h>
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#include <linux/platform_device.h>
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#include <linux/property.h>
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#include <linux/regmap.h>
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#include <media/v4l2-flash-led-class.h>
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enum {
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MT6370_LED_FLASH1 = 0,
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MT6370_LED_FLASH2,
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MT6370_MAX_LEDS
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};
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/* Virtual definition for multicolor */
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#define MT6370_REG_FLEDEN 0x17E
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#define MT6370_REG_STRBTO 0x173
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#define MT6370_REG_CHGSTAT2 0x1D1
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#define MT6370_REG_FLEDSTAT1 0x1D9
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#define MT6370_REG_FLEDISTRB(_id) (0x174 + 4 * (_id))
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#define MT6370_REG_FLEDITOR(_id) (0x175 + 4 * (_id))
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#define MT6370_ITORCH_MASK GENMASK(4, 0)
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#define MT6370_ISTROBE_MASK GENMASK(6, 0)
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#define MT6370_STRBTO_MASK GENMASK(6, 0)
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#define MT6370_TORCHEN_MASK BIT(3)
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#define MT6370_STROBEN_MASK BIT(2)
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#define MT6370_FLCSEN_MASK(_id) BIT(MT6370_LED_FLASH2 - (_id))
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#define MT6370_FLCSEN_MASK_ALL GENMASK(1, 0)
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#define MT6370_FLEDCHGVINOVP_MASK BIT(3)
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#define MT6370_FLED1STRBTO_MASK BIT(11)
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#define MT6370_FLED2STRBTO_MASK BIT(10)
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#define MT6370_FLED1STRB_MASK BIT(9)
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#define MT6370_FLED2STRB_MASK BIT(8)
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#define MT6370_FLED1SHORT_MASK BIT(7)
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#define MT6370_FLED2SHORT_MASK BIT(6)
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#define MT6370_FLEDLVF_MASK BIT(3)
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#define MT6370_LED_JOINT 2
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#define MT6370_RANGE_FLED_REG 4
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#define MT6370_ITORCH_MIN_uA 25000
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#define MT6370_ITORCH_STEP_uA 12500
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#define MT6370_ITORCH_MAX_uA 400000
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#define MT6370_ITORCH_DOUBLE_MAX_uA 800000
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#define MT6370_ISTRB_MIN_uA 50000
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#define MT6370_ISTRB_STEP_uA 12500
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#define MT6370_ISTRB_MAX_uA 1500000
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#define MT6370_ISTRB_DOUBLE_MAX_uA 3000000
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#define MT6370_STRBTO_MIN_US 64000
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#define MT6370_STRBTO_STEP_US 32000
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#define MT6370_STRBTO_MAX_US 2432000
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#define to_mt6370_led(ptr, member) container_of(ptr, struct mt6370_led, member)
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struct mt6370_led {
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struct led_classdev_flash flash;
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struct v4l2_flash *v4l2_flash;
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struct mt6370_priv *priv;
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u8 led_no;
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};
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struct mt6370_priv {
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struct regmap *regmap;
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struct mutex lock;
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unsigned int fled_strobe_used;
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unsigned int fled_torch_used;
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unsigned int leds_active;
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unsigned int leds_count;
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struct mt6370_led leds[];
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};
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static int mt6370_torch_brightness_set(struct led_classdev *lcdev, enum led_brightness level)
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{
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struct mt6370_led *led = to_mt6370_led(lcdev, flash.led_cdev);
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struct mt6370_priv *priv = led->priv;
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u32 led_enable_mask = led->led_no == MT6370_LED_JOINT ? MT6370_FLCSEN_MASK_ALL :
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MT6370_FLCSEN_MASK(led->led_no);
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u32 enable_mask = MT6370_TORCHEN_MASK | led_enable_mask;
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u32 val = level ? led_enable_mask : 0;
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u32 curr;
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int ret, i;
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mutex_lock(&priv->lock);
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/*
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* There is only one set of flash control logic, and this flag is used to check if 'strobe'
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* is currently being used.
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*/
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if (priv->fled_strobe_used) {
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dev_warn(lcdev->dev, "Please disable strobe first [%d]\n", priv->fled_strobe_used);
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ret = -EBUSY;
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goto unlock;
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}
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if (level)
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curr = priv->fled_torch_used | BIT(led->led_no);
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else
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curr = priv->fled_torch_used & ~BIT(led->led_no);
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if (curr)
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val |= MT6370_TORCHEN_MASK;
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if (level) {
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level -= 1;
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if (led->led_no == MT6370_LED_JOINT) {
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u32 flevel[MT6370_MAX_LEDS];
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/*
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* There're two flash channels in MT6370. If joint flash output is used,
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* torch current will be averaged output from both channels.
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*/
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flevel[0] = level / 2;
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flevel[1] = level - flevel[0];
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for (i = 0; i < MT6370_MAX_LEDS; i++) {
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ret = regmap_update_bits(priv->regmap, MT6370_REG_FLEDITOR(i),
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MT6370_ITORCH_MASK, flevel[i]);
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if (ret)
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goto unlock;
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}
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} else {
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ret = regmap_update_bits(priv->regmap, MT6370_REG_FLEDITOR(led->led_no),
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MT6370_ITORCH_MASK, level);
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if (ret)
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goto unlock;
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}
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}
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ret = regmap_update_bits(priv->regmap, MT6370_REG_FLEDEN, enable_mask, val);
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if (ret)
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goto unlock;
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priv->fled_torch_used = curr;
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unlock:
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mutex_unlock(&priv->lock);
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return ret;
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}
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static int mt6370_flash_brightness_set(struct led_classdev_flash *fl_cdev, u32 brightness)
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{
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/*
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* Because of the current spikes when turning on the flash, the brightness should be kept
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* by the LED framework. This empty function is used to prevent checking failure when
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* led_classdev_flash registers ops.
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*/
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return 0;
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}
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static int _mt6370_flash_brightness_set(struct led_classdev_flash *fl_cdev, u32 brightness)
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{
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struct mt6370_led *led = to_mt6370_led(fl_cdev, flash);
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struct mt6370_priv *priv = led->priv;
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struct led_flash_setting *setting = &fl_cdev->brightness;
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u32 val = (brightness - setting->min) / setting->step;
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int ret, i;
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if (led->led_no == MT6370_LED_JOINT) {
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u32 flevel[MT6370_MAX_LEDS];
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/*
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* There're two flash channels in MT6370. If joint flash output is used, storbe
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* current will be averaged output from both channels.
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*/
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flevel[0] = val / 2;
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flevel[1] = val - flevel[0];
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for (i = 0; i < MT6370_MAX_LEDS; i++) {
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ret = regmap_update_bits(priv->regmap, MT6370_REG_FLEDISTRB(i),
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MT6370_ISTROBE_MASK, flevel[i]);
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if (ret)
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break;
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}
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} else {
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ret = regmap_update_bits(priv->regmap, MT6370_REG_FLEDISTRB(led->led_no),
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MT6370_ISTROBE_MASK, val);
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}
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return ret;
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}
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static int mt6370_strobe_set(struct led_classdev_flash *fl_cdev, bool state)
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{
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struct mt6370_led *led = to_mt6370_led(fl_cdev, flash);
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struct mt6370_priv *priv = led->priv;
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struct led_classdev *lcdev = &fl_cdev->led_cdev;
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struct led_flash_setting *s = &fl_cdev->brightness;
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u32 led_enable_mask = led->led_no == MT6370_LED_JOINT ? MT6370_FLCSEN_MASK_ALL :
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MT6370_FLCSEN_MASK(led->led_no);
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u32 enable_mask = MT6370_STROBEN_MASK | led_enable_mask;
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u32 val = state ? led_enable_mask : 0;
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u32 curr;
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int ret;
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mutex_lock(&priv->lock);
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/*
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* There is only one set of flash control logic, and this flag is used to check if 'torch'
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* is currently being used.
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*/
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if (priv->fled_torch_used) {
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dev_warn(lcdev->dev, "Please disable torch first [0x%x]\n", priv->fled_torch_used);
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ret = -EBUSY;
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goto unlock;
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}
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if (state)
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curr = priv->fled_strobe_used | BIT(led->led_no);
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else
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curr = priv->fled_strobe_used & ~BIT(led->led_no);
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if (curr)
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val |= MT6370_STROBEN_MASK;
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ret = regmap_update_bits(priv->regmap, MT6370_REG_FLEDEN, enable_mask, val);
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if (ret) {
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dev_err(lcdev->dev, "[%d] control current source %d fail\n", led->led_no, state);
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goto unlock;
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}
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/*
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* If the flash needs to turn on, configure the flash current to ramp up to the setting
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* value. Otherwise, always revert to the minimum one.
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*/
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ret = _mt6370_flash_brightness_set(fl_cdev, state ? s->val : s->min);
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if (ret) {
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dev_err(lcdev->dev, "[%d] Failed to set brightness\n", led->led_no);
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goto unlock;
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}
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/*
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* For the flash to turn on/off, we must wait for HW ramping up/down time 5ms/500us to
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* prevent the unexpected problem.
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*/
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if (!priv->fled_strobe_used && curr)
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usleep_range(5000, 6000);
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else if (priv->fled_strobe_used && !curr)
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usleep_range(500, 600);
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priv->fled_strobe_used = curr;
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unlock:
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mutex_unlock(&priv->lock);
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return ret;
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}
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static int mt6370_strobe_get(struct led_classdev_flash *fl_cdev, bool *state)
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{
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struct mt6370_led *led = to_mt6370_led(fl_cdev, flash);
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struct mt6370_priv *priv = led->priv;
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mutex_lock(&priv->lock);
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*state = !!(priv->fled_strobe_used & BIT(led->led_no));
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mutex_unlock(&priv->lock);
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return 0;
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}
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static int mt6370_timeout_set(struct led_classdev_flash *fl_cdev, u32 timeout)
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{
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struct mt6370_led *led = to_mt6370_led(fl_cdev, flash);
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struct mt6370_priv *priv = led->priv;
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struct led_flash_setting *s = &fl_cdev->timeout;
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u32 val = (timeout - s->min) / s->step;
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return regmap_update_bits(priv->regmap, MT6370_REG_STRBTO, MT6370_STRBTO_MASK, val);
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}
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static int mt6370_fault_get(struct led_classdev_flash *fl_cdev, u32 *fault)
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{
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struct mt6370_led *led = to_mt6370_led(fl_cdev, flash);
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struct mt6370_priv *priv = led->priv;
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u16 fled_stat;
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unsigned int chg_stat, strobe_timeout_mask, fled_short_mask;
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u32 rfault = 0;
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int ret;
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ret = regmap_read(priv->regmap, MT6370_REG_CHGSTAT2, &chg_stat);
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if (ret)
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return ret;
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ret = regmap_raw_read(priv->regmap, MT6370_REG_FLEDSTAT1, &fled_stat, sizeof(fled_stat));
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if (ret)
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return ret;
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switch (led->led_no) {
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case MT6370_LED_FLASH1:
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strobe_timeout_mask = MT6370_FLED1STRBTO_MASK;
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fled_short_mask = MT6370_FLED1SHORT_MASK;
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break;
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case MT6370_LED_FLASH2:
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strobe_timeout_mask = MT6370_FLED2STRBTO_MASK;
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fled_short_mask = MT6370_FLED2SHORT_MASK;
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break;
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case MT6370_LED_JOINT:
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strobe_timeout_mask = MT6370_FLED1STRBTO_MASK | MT6370_FLED2STRBTO_MASK;
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fled_short_mask = MT6370_FLED1SHORT_MASK | MT6370_FLED2SHORT_MASK;
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break;
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default:
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return -EINVAL;
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}
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if (chg_stat & MT6370_FLEDCHGVINOVP_MASK)
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rfault |= LED_FAULT_INPUT_VOLTAGE;
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if (fled_stat & strobe_timeout_mask)
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rfault |= LED_FAULT_TIMEOUT;
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if (fled_stat & fled_short_mask)
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rfault |= LED_FAULT_SHORT_CIRCUIT;
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if (fled_stat & MT6370_FLEDLVF_MASK)
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rfault |= LED_FAULT_UNDER_VOLTAGE;
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*fault = rfault;
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return ret;
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}
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static const struct led_flash_ops mt6370_flash_ops = {
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.flash_brightness_set = mt6370_flash_brightness_set,
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.strobe_set = mt6370_strobe_set,
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.strobe_get = mt6370_strobe_get,
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.timeout_set = mt6370_timeout_set,
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.fault_get = mt6370_fault_get,
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};
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#if IS_ENABLED(CONFIG_V4L2_FLASH_LED_CLASS)
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static int mt6370_flash_external_strobe_set(struct v4l2_flash *v4l2_flash,
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bool enable)
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{
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struct led_classdev_flash *flash = v4l2_flash->fled_cdev;
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struct mt6370_led *led = to_mt6370_led(flash, flash);
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struct mt6370_priv *priv = led->priv;
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u32 mask = led->led_no == MT6370_LED_JOINT ? MT6370_FLCSEN_MASK_ALL :
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MT6370_FLCSEN_MASK(led->led_no);
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u32 val = enable ? mask : 0;
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int ret;
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mutex_lock(&priv->lock);
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ret = regmap_update_bits(priv->regmap, MT6370_REG_FLEDEN, mask, val);
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if (ret)
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goto unlock;
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if (enable)
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priv->fled_strobe_used |= BIT(led->led_no);
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else
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priv->fled_strobe_used &= ~BIT(led->led_no);
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unlock:
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mutex_unlock(&priv->lock);
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return ret;
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}
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static const struct v4l2_flash_ops v4l2_flash_ops = {
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.external_strobe_set = mt6370_flash_external_strobe_set,
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};
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static void mt6370_init_v4l2_flash_config(struct mt6370_led *led, struct v4l2_flash_config *cfg)
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{
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struct led_classdev *lcdev;
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struct led_flash_setting *s = &cfg->intensity;
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lcdev = &led->flash.led_cdev;
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s->min = MT6370_ITORCH_MIN_uA;
|
||||
s->step = MT6370_ITORCH_STEP_uA;
|
||||
s->val = s->max = s->min + (lcdev->max_brightness - 1) * s->step;
|
||||
|
||||
cfg->has_external_strobe = 1;
|
||||
strscpy(cfg->dev_name, dev_name(lcdev->dev), sizeof(cfg->dev_name));
|
||||
|
||||
cfg->flash_faults = LED_FAULT_SHORT_CIRCUIT | LED_FAULT_TIMEOUT |
|
||||
LED_FAULT_INPUT_VOLTAGE | LED_FAULT_UNDER_VOLTAGE;
|
||||
}
|
||||
#else
|
||||
static const struct v4l2_flash_ops v4l2_flash_ops;
|
||||
static void mt6370_init_v4l2_flash_config(struct mt6370_led *led, struct v4l2_flash_config *cfg)
|
||||
{
|
||||
}
|
||||
#endif
|
||||
|
||||
static void mt6370_v4l2_flash_release(void *v4l2_flash)
|
||||
{
|
||||
v4l2_flash_release(v4l2_flash);
|
||||
}
|
||||
|
||||
static int mt6370_led_register(struct device *parent, struct mt6370_led *led,
|
||||
struct fwnode_handle *fwnode)
|
||||
{
|
||||
struct led_init_data init_data = { .fwnode = fwnode };
|
||||
struct v4l2_flash_config v4l2_config = {};
|
||||
int ret;
|
||||
|
||||
ret = devm_led_classdev_flash_register_ext(parent, &led->flash, &init_data);
|
||||
if (ret)
|
||||
return dev_err_probe(parent, ret, "Couldn't register flash %d\n", led->led_no);
|
||||
|
||||
mt6370_init_v4l2_flash_config(led, &v4l2_config);
|
||||
led->v4l2_flash = v4l2_flash_init(parent, fwnode, &led->flash, &v4l2_flash_ops,
|
||||
&v4l2_config);
|
||||
if (IS_ERR(led->v4l2_flash))
|
||||
return dev_err_probe(parent, PTR_ERR(led->v4l2_flash),
|
||||
"Failed to register %d v4l2 sd\n", led->led_no);
|
||||
|
||||
return devm_add_action_or_reset(parent, mt6370_v4l2_flash_release, led->v4l2_flash);
|
||||
}
|
||||
|
||||
static u32 mt6370_clamp(u32 val, u32 min, u32 max, u32 step)
|
||||
{
|
||||
u32 retval;
|
||||
|
||||
retval = clamp_val(val, min, max);
|
||||
if (step > 1)
|
||||
retval = rounddown(retval - min, step) + min;
|
||||
|
||||
return retval;
|
||||
}
|
||||
|
||||
static int mt6370_init_flash_properties(struct device *dev, struct mt6370_led *led,
|
||||
struct fwnode_handle *fwnode)
|
||||
{
|
||||
struct led_classdev_flash *flash = &led->flash;
|
||||
struct led_classdev *lcdev = &flash->led_cdev;
|
||||
struct mt6370_priv *priv = led->priv;
|
||||
struct led_flash_setting *s;
|
||||
u32 sources[MT6370_MAX_LEDS];
|
||||
u32 max_ua, val;
|
||||
int i, ret, num;
|
||||
|
||||
num = fwnode_property_count_u32(fwnode, "led-sources");
|
||||
if (num < 1)
|
||||
return dev_err_probe(dev, -EINVAL,
|
||||
"Not specified or wrong number of led-sources\n");
|
||||
|
||||
ret = fwnode_property_read_u32_array(fwnode, "led-sources", sources, num);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
for (i = 0; i < num; i++) {
|
||||
if (sources[i] >= MT6370_MAX_LEDS)
|
||||
return -EINVAL;
|
||||
if (priv->leds_active & BIT(sources[i]))
|
||||
return -EINVAL;
|
||||
priv->leds_active |= BIT(sources[i]);
|
||||
}
|
||||
|
||||
/* If both channels are specified in 'led-sources', joint flash output mode is used */
|
||||
led->led_no = num == 2 ? MT6370_LED_JOINT : sources[0];
|
||||
|
||||
max_ua = num == 2 ? MT6370_ITORCH_DOUBLE_MAX_uA : MT6370_ITORCH_MAX_uA;
|
||||
val = MT6370_ITORCH_MIN_uA;
|
||||
ret = fwnode_property_read_u32(fwnode, "led-max-microamp", &val);
|
||||
if (!ret)
|
||||
val = mt6370_clamp(val, MT6370_ITORCH_MIN_uA, max_ua, MT6370_ITORCH_STEP_uA);
|
||||
|
||||
lcdev->max_brightness = (val - MT6370_ITORCH_MIN_uA) / MT6370_ITORCH_STEP_uA + 1;
|
||||
lcdev->brightness_set_blocking = mt6370_torch_brightness_set;
|
||||
lcdev->flags |= LED_DEV_CAP_FLASH;
|
||||
|
||||
max_ua = num == 2 ? MT6370_ISTRB_DOUBLE_MAX_uA : MT6370_ISTRB_MAX_uA;
|
||||
val = MT6370_ISTRB_MIN_uA;
|
||||
ret = fwnode_property_read_u32(fwnode, "flash-max-microamp", &val);
|
||||
if (!ret)
|
||||
val = mt6370_clamp(val, MT6370_ISTRB_MIN_uA, max_ua, MT6370_ISTRB_STEP_uA);
|
||||
|
||||
s = &flash->brightness;
|
||||
s->min = MT6370_ISTRB_MIN_uA;
|
||||
s->step = MT6370_ISTRB_STEP_uA;
|
||||
s->val = s->max = val;
|
||||
|
||||
/* Always configure to the minimum level when off to prevent flash current spikes. */
|
||||
ret = _mt6370_flash_brightness_set(flash, s->min);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
val = MT6370_STRBTO_MIN_US;
|
||||
ret = fwnode_property_read_u32(fwnode, "flash-max-timeout-us", &val);
|
||||
if (!ret)
|
||||
val = mt6370_clamp(val, MT6370_STRBTO_MIN_US, MT6370_STRBTO_MAX_US,
|
||||
MT6370_STRBTO_STEP_US);
|
||||
|
||||
s = &flash->timeout;
|
||||
s->min = MT6370_STRBTO_MIN_US;
|
||||
s->step = MT6370_STRBTO_STEP_US;
|
||||
s->val = s->max = val;
|
||||
|
||||
flash->ops = &mt6370_flash_ops;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int mt6370_led_probe(struct platform_device *pdev)
|
||||
{
|
||||
struct device *dev = &pdev->dev;
|
||||
struct mt6370_priv *priv;
|
||||
struct fwnode_handle *child;
|
||||
size_t count;
|
||||
int i = 0, ret;
|
||||
|
||||
count = device_get_child_node_count(dev);
|
||||
if (!count || count > MT6370_MAX_LEDS)
|
||||
return dev_err_probe(dev, -EINVAL,
|
||||
"No child node or node count over max led number %zu\n", count);
|
||||
|
||||
priv = devm_kzalloc(dev, struct_size(priv, leds, count), GFP_KERNEL);
|
||||
if (!priv)
|
||||
return -ENOMEM;
|
||||
|
||||
priv->leds_count = count;
|
||||
mutex_init(&priv->lock);
|
||||
|
||||
priv->regmap = dev_get_regmap(dev->parent, NULL);
|
||||
if (!priv->regmap)
|
||||
return dev_err_probe(dev, -ENODEV, "Failed to get parent regmap\n");
|
||||
|
||||
device_for_each_child_node(dev, child) {
|
||||
struct mt6370_led *led = priv->leds + i;
|
||||
|
||||
led->priv = priv;
|
||||
|
||||
ret = mt6370_init_flash_properties(dev, led, child);
|
||||
if (ret) {
|
||||
fwnode_handle_put(child);
|
||||
return ret;
|
||||
}
|
||||
|
||||
ret = mt6370_led_register(dev, led, child);
|
||||
if (ret) {
|
||||
fwnode_handle_put(child);
|
||||
return ret;
|
||||
}
|
||||
|
||||
i++;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct of_device_id mt6370_led_of_id[] = {
|
||||
{ .compatible = "mediatek,mt6370-flashlight" },
|
||||
{}
|
||||
};
|
||||
MODULE_DEVICE_TABLE(of, mt6370_led_of_id);
|
||||
|
||||
static struct platform_driver mt6370_led_driver = {
|
||||
.driver = {
|
||||
.name = "mt6370-flashlight",
|
||||
.of_match_table = mt6370_led_of_id,
|
||||
},
|
||||
.probe = mt6370_led_probe,
|
||||
};
|
||||
module_platform_driver(mt6370_led_driver);
|
||||
|
||||
MODULE_AUTHOR("Alice Chen <alice_chen@richtek.com>");
|
||||
MODULE_AUTHOR("ChiYuan Huang <cy_huang@richtek.com>");
|
||||
MODULE_DESCRIPTION("MT6370 FLASH LED Driver");
|
||||
MODULE_LICENSE("GPL");
|
Loading…
Reference in New Issue
Block a user