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Backlight for v7.3
- New Support & Features
- Silergy SY7758: Add driver for the 6-channel high-efficiency LED driver
- Improvements & Fixes
- Awinic AW99706: Fix device tree property names to match the binding, consistently
validate all property values, and honor the core blank state in `update_status()`
- Kinetic KTD2801: Add missing dependency on `GPIOLIB` in Kconfig
- Qualcomm WLED: Remove redundant `dev_err()` calls
- Cleanups & Refactoring
- Core: Use `sysfs_emit()` instead of `sprintf()` in sysfs show callbacks
- Maintainers: Update Junjie Cao's email address for the Awinic AW99706 driver
- Device Tree Binding Updates
- Marvell 88PM860X: Add missing bracket in the example
- Silergy SY7758: Document the 6-channel high-efficiency LED driver
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Merge tag 'backlight-next-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight
Pull backlight updates from Lee Jones:
"New Support & Features:
- Silergy SY7758: Add driver for the 6-channel high-efficiency LED
driver
Improvements & Fixes
- Awinic AW99706: Fix device tree property names to match the
binding, consistently validate all property values, and honor the
core blank state in `update_status()`
- Kinetic KTD2801: Add missing dependency on `GPIOLIB` in Kconfig
- Qualcomm WLED: Remove redundant `dev_err()` calls
Cleanups & Refactoring
- Core: Use `sysfs_emit()` instead of `sprintf()` in sysfs show
callbacks
- Maintainers: Update Junjie Cao's email address for the Awinic
AW99706 driver
Device Tree Binding Updates
- Marvell 88PM860X: Add missing bracket in the example
- Silergy SY7758: Document the 6-channel high-efficiency LED driver"
* tag 'backlight-next-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight:
backlight: Use sysfs_emit() instead of sprintf()
backlight: qcom-wled: Remove redundant dev_err()
backlight: ktd2801: Fix unmet dependency on GPIOLIB
backlight: aw99706: Honor the core blank state in update_status()
backlight: aw99706: Validate all DT property values consistently
backlight: aw99706: Fix DT property names to match binding
dt-bindings: backlight: 88pm860x: Add missing bracket
MAINTAINERS: Update my email address for the AW99706 backlight driver
backlight: Add SY7758 6-channel High Efficiency LED Driver support
dt-bindings: leds: backlight: Document the SY7758 6-channel High Efficiency LED Driver
This commit is contained in:
Linus Torvalds
commit
f7e3f4d9f4
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@ -13,3 +13,4 @@ Example:
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};
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backlight-2 {
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};
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};
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@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Awinic AW99706 6-channel WLED Backlight Driver
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maintainers:
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- Junjie Cao <caojunjie650@gmail.com>
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- Junjie Cao <junjie.cao@linux.dev>
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allOf:
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- $ref: common.yaml#
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@ -0,0 +1,52 @@
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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/leds/backlight/silergy,sy7758.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Silergy SY7758 6-channel High Efficiency LED Driver
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maintainers:
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- Neil Armstrong <neil.armstrong@linaro.org>
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description:
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Silergy SY7758 is a high efficiency 6-channels LED backlight
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driver with I2C brightness control.
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allOf:
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- $ref: common.yaml#
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properties:
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compatible:
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const: silergy,sy7758
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reg:
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maxItems: 1
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vdd-supply: true
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enable-gpios:
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maxItems: 1
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required:
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- compatible
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- reg
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- enable-gpios
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unevaluatedProperties: false
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examples:
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- |
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#include <dt-bindings/gpio/gpio.h>
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i2c {
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#address-cells = <1>;
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#size-cells = <0>;
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backlight@11 {
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compatible = "silergy,sy7758";
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reg = <0x11>;
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vdd-supply = <&bl_vdd>;
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enable-gpios = <&gpio 16 GPIO_ACTIVE_HIGH>;
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};
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};
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@ -4420,7 +4420,7 @@ S: Maintained
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F: drivers/media/pci/hws/
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AWINIC AW99706 WLED BACKLIGHT DRIVER
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M: Junjie Cao <caojunjie650@gmail.com>
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M: Junjie Cao <junjie.cao@linux.dev>
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S: Maintained
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F: Documentation/devicetree/bindings/leds/backlight/awinic,aw99706.yaml
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F: drivers/video/backlight/aw99706.c
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@ -193,7 +193,7 @@ config BACKLIGHT_KTD253
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config BACKLIGHT_KTD2801
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tristate "Backlight Driver for Kinetic KTD2801"
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depends on GPIOLIB || COMPILE_TEST
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depends on GPIOLIB
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select LEDS_EXPRESSWIRE
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help
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Say Y to enable the backlight driver for the Kinetic KTD2801 1-wire
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@ -207,6 +207,14 @@ config BACKLIGHT_KTZ8866
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Say Y to enable the backlight driver for the Kinetic KTZ8866
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found in Xiaomi Mi Pad 5 series.
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config BACKLIGHT_SY7758
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tristate "Backlight Driver for Silergy SY7758"
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depends on I2C
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select REGMAP_I2C
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help
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Say Y to enable the backlight driver for the Silergy SY7758
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backlight controller found in Ayaneo Pocket S2.
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config BACKLIGHT_LM3533
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tristate "Backlight Driver for LM3533"
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depends on MFD_LM3533
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@ -57,6 +57,7 @@ obj-$(CONFIG_BACKLIGHT_PWM) += pwm_bl.o
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obj-$(CONFIG_BACKLIGHT_QCOM_WLED) += qcom-wled.o
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obj-$(CONFIG_BACKLIGHT_RT4831) += rt4831-backlight.o
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obj-$(CONFIG_BACKLIGHT_SAHARA) += kb3886_bl.o
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obj-$(CONFIG_BACKLIGHT_SY7758) += sy7758.o
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obj-$(CONFIG_BACKLIGHT_SKY81452) += sky81452-backlight.o
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obj-$(CONFIG_BACKLIGHT_TPS65217) += tps65217_bl.o
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obj-$(CONFIG_BACKLIGHT_WM831X) += wm831x_bl.o
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@ -60,7 +60,7 @@
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#define AW99706_MTPLDOSEL_REG 0x1E
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#define AW99706_MTPRUN_REG 0x1F
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#define RESV 0
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#define RESV U32_MAX
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/* Boost switching frequency table, in Hz */
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static const u32 aw99706_sw_freq_tbl[] = {
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@ -94,17 +94,19 @@ static int aw99706_dt_property_lookup(const struct aw99706_dt_prop *prop,
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int i;
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if (!prop->lookup_tbl) {
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if (dt_val > (prop->mask >> __ffs(prop->mask)))
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return -EINVAL;
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*val = dt_val;
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return 0;
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}
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for (i = 0; i < prop->tbl_size; i++)
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if (prop->lookup_tbl[i] == dt_val)
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if (prop->lookup_tbl[i] != RESV && prop->lookup_tbl[i] == dt_val)
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break;
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*val = i;
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return i == prop->tbl_size ? -1 : 0;
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return i == prop->tbl_size ? -EINVAL : 0;
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}
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#define MIN_ILED_MAX 5000
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@ -116,11 +118,14 @@ aw99706_dt_property_iled_max_convert(const struct aw99706_dt_prop *prop,
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u32 dt_val, u8 *val)
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{
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if (dt_val > MAX_ILED_MAX || dt_val < MIN_ILED_MAX)
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return -1;
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return -EINVAL;
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if ((dt_val - MIN_ILED_MAX) % STEP_ILED_MAX)
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return -EINVAL;
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*val = (dt_val - MIN_ILED_MAX) / STEP_ILED_MAX;
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return (dt_val - MIN_ILED_MAX) % STEP_ILED_MAX;
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return 0;
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}
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static const struct aw99706_dt_prop aw99706_dt_props[] = {
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@ -130,23 +135,23 @@ static const struct aw99706_dt_prop aw99706_dt_props[] = {
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AW99706_CFG0_REG, AW99706_DIM_MODE_MASK, 1,
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},
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{
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"awinic,sw-freq", aw99706_dt_property_lookup,
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"awinic,sw-freq-hz", aw99706_dt_property_lookup,
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aw99706_sw_freq_tbl, ARRAY_SIZE(aw99706_sw_freq_tbl),
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AW99706_CFG1_REG, AW99706_SW_FREQ_MASK, 750000,
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},
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{
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"awinic,sw-ilmt", aw99706_dt_property_lookup,
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"awinic,sw-ilmt-microamp", aw99706_dt_property_lookup,
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aw99706_sw_ilmt_tbl, ARRAY_SIZE(aw99706_sw_ilmt_tbl),
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AW99706_CFG1_REG, AW99706_SW_ILMT_MASK, 3000000,
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},
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{
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"awinic,iled-max", aw99706_dt_property_iled_max_convert,
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"awinic,iled-max-microamp", aw99706_dt_property_iled_max_convert,
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NULL, 0,
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AW99706_CFG2_REG, AW99706_ILED_MAX_MASK, 20000,
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},
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{
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"awinic,uvlo-thres", aw99706_dt_property_lookup,
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"awinic,uvlo-thres-microvolt", aw99706_dt_property_lookup,
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aw99706_ulvo_thres_tbl, ARRAY_SIZE(aw99706_ulvo_thres_tbl),
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AW99706_CFG2_REG, AW99706_UVLOSEL_MASK, 2200000,
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},
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@ -335,7 +340,7 @@ static int aw99706_bl_update_status(struct backlight_device *bl)
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{
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struct aw99706_device *aw = bl_get_data(bl);
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return aw99706_update_brightness(aw, bl->props.brightness);
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return aw99706_update_brightness(aw, backlight_get_brightness(bl));
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}
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static const struct backlight_ops aw99706_bl_ops = {
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@ -139,7 +139,7 @@ static ssize_t bl_power_show(struct device *dev, struct device_attribute *attr,
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{
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struct backlight_device *bd = to_backlight_device(dev);
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return sprintf(buf, "%d\n", bd->props.power);
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return sysfs_emit(buf, "%d\n", bd->props.power);
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}
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static ssize_t bl_power_store(struct device *dev, struct device_attribute *attr,
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@ -180,7 +180,7 @@ static ssize_t brightness_show(struct device *dev,
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{
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struct backlight_device *bd = to_backlight_device(dev);
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return sprintf(buf, "%d\n", bd->props.brightness);
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return sysfs_emit(buf, "%d\n", bd->props.brightness);
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}
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int backlight_device_set_brightness(struct backlight_device *bd,
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@ -228,7 +228,7 @@ static ssize_t type_show(struct device *dev, struct device_attribute *attr,
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{
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struct backlight_device *bd = to_backlight_device(dev);
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return sprintf(buf, "%s\n", backlight_types[bd->props.type]);
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return sysfs_emit(buf, "%s\n", backlight_types[bd->props.type]);
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}
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static DEVICE_ATTR_RO(type);
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@ -237,7 +237,7 @@ static ssize_t max_brightness_show(struct device *dev,
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{
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struct backlight_device *bd = to_backlight_device(dev);
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return sprintf(buf, "%d\n", bd->props.max_brightness);
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return sysfs_emit(buf, "%d\n", bd->props.max_brightness);
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}
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static DEVICE_ATTR_RO(max_brightness);
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@ -251,9 +251,9 @@ static ssize_t actual_brightness_show(struct device *dev,
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if (bd->ops && bd->ops->get_brightness) {
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rc = bd->ops->get_brightness(bd);
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if (rc >= 0)
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rc = sprintf(buf, "%d\n", rc);
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rc = sysfs_emit(buf, "%d\n", rc);
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} else {
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rc = sprintf(buf, "%d\n", bd->props.brightness);
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rc = sysfs_emit(buf, "%d\n", bd->props.brightness);
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}
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mutex_unlock(&bd->ops_lock);
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@ -267,9 +267,9 @@ static ssize_t scale_show(struct device *dev,
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struct backlight_device *bd = to_backlight_device(dev);
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if (WARN_ON(bd->props.scale > BACKLIGHT_SCALE_NON_LINEAR))
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return sprintf(buf, "unknown\n");
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return sysfs_emit(buf, "unknown\n");
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return sprintf(buf, "%s\n", backlight_scale_types[bd->props.scale]);
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return sysfs_emit(buf, "%s\n", backlight_scale_types[bd->props.scale]);
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}
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static DEVICE_ATTR_RO(scale);
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|
|
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|
@ -77,7 +77,7 @@ static ssize_t lcd_power_show(struct device *dev, struct device_attribute *attr,
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mutex_lock(&ld->ops_lock);
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if (ld->ops && ld->ops->get_power)
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rc = sprintf(buf, "%d\n", ld->ops->get_power(ld));
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rc = sysfs_emit(buf, "%d\n", ld->ops->get_power(ld));
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else
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rc = -ENXIO;
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mutex_unlock(&ld->ops_lock);
|
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|
|
@ -118,7 +118,7 @@ static ssize_t contrast_show(struct device *dev,
|
|||
|
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mutex_lock(&ld->ops_lock);
|
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if (ld->ops && ld->ops->get_contrast)
|
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rc = sprintf(buf, "%d\n", ld->ops->get_contrast(ld));
|
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rc = sysfs_emit(buf, "%d\n", ld->ops->get_contrast(ld));
|
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mutex_unlock(&ld->ops_lock);
|
||||
|
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return rc;
|
||||
|
|
@ -154,7 +154,7 @@ static ssize_t max_contrast_show(struct device *dev,
|
|||
{
|
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struct lcd_device *ld = to_lcd_device(dev);
|
||||
|
||||
return sprintf(buf, "%d\n", ld->props.max_contrast);
|
||||
return sysfs_emit(buf, "%d\n", ld->props.max_contrast);
|
||||
}
|
||||
static DEVICE_ATTR_RO(max_contrast);
|
||||
|
||||
|
|
|
|||
|
|
@ -1639,8 +1639,6 @@ static int wled_configure_ovp_irq(struct wled *wled,
|
|||
wled_ovp_irq_handler, IRQF_ONESHOT,
|
||||
"wled_ovp_irq", wled);
|
||||
if (rc < 0) {
|
||||
dev_err(wled->dev, "Unable to request ovp_irq (err:%d)\n",
|
||||
rc);
|
||||
wled->ovp_irq = 0;
|
||||
return 0;
|
||||
}
|
||||
|
|
|
|||
259
drivers/video/backlight/sy7758.c
Normal file
259
drivers/video/backlight/sy7758.c
Normal file
|
|
@ -0,0 +1,259 @@
|
|||
// SPDX-License-Identifier: GPL-2.0-only
|
||||
/*
|
||||
* Silergy SY7758 6-channel High Efficiency LED Driver
|
||||
*
|
||||
* Copyright (C) 2025 Kancy Joe <kancy2333@outlook.com>
|
||||
* Copyright (C) 2026 Linaro Limited
|
||||
* Author: Neil Armstrong <neil.armstrong@linaro.org>
|
||||
*/
|
||||
#include <linux/backlight.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/i2c.h>
|
||||
#include <linux/of.h>
|
||||
#include <linux/err.h>
|
||||
#include <linux/bits.h>
|
||||
#include <linux/delay.h>
|
||||
#include <linux/regmap.h>
|
||||
#include <linux/bitfield.h>
|
||||
#include <linux/gpio/consumer.h>
|
||||
#include <linux/regulator/consumer.h>
|
||||
|
||||
#define DEFAULT_BRIGHTNESS 1024
|
||||
#define MAX_BRIGHTNESS 4080
|
||||
#define REG_MAX 0xAE
|
||||
|
||||
/* Registers */
|
||||
#define REG_DEV_CTL 0x01
|
||||
#define REG_DEV_ID 0x03
|
||||
#define REG_BRT_12BIT_L 0x10
|
||||
#define REG_BRT_12BIT_H 0x11
|
||||
|
||||
/* OTP memory */
|
||||
#define REG_OTP_CFG0 0xA0
|
||||
#define REG_OTP_CFG1 0xA1
|
||||
#define REG_OTP_CFG2 0xA2
|
||||
#define REG_OTP_CFG5 0xA5
|
||||
#define REG_OTP_CFG9 0xA9
|
||||
|
||||
/* Fields */
|
||||
#define BIT_DEV_CTL_FAST BIT(7)
|
||||
#define MSK_DEV_CTL_BRT_MODE GENMASK(2, 1)
|
||||
#define BIT_DEV_CTL_BL_CTLB BIT(0)
|
||||
|
||||
#define MSK_BRT_12BIT_L GENMASK(7, 0)
|
||||
#define MSK_BRT_12BIT_H GENMASK(3, 0)
|
||||
|
||||
#define MSK_CFG0_CURRENT_LOW GENMASK(7, 0)
|
||||
|
||||
#define BIT_CFG1_PDET_STDBY BIT(7)
|
||||
#define MSK_CFG1_CURRENT_MAX GENMASK(6, 4)
|
||||
#define MSK_CFG1_CURRENT_HIGH GENMASK(3, 0)
|
||||
|
||||
#define BIT_CFG2_UVLO_EN BIT(5)
|
||||
#define BIT_CFG2_UVLO_TH BIT(4)
|
||||
#define BIT_CFG2_BL_ON BIT(3)
|
||||
#define BIT_CFG2_ISET_EN BIT(2)
|
||||
#define BIT_CFG2_BST_ESET_EN BIT(1)
|
||||
|
||||
#define BIT_CFG5_PWM_DIRECT BIT(7)
|
||||
#define MSK_CFG5_PS_MODE GENMASK(6, 4)
|
||||
#define MSK_CFG5_PWM_FREQ GENMASK(3, 0)
|
||||
|
||||
#define MSK_CFG9_VBST_MAX GENMASK(7, 5)
|
||||
#define BIT_CFG9_JUMP_EN BIT(4)
|
||||
#define MSK_CFG9_JUMP_TH GENMASK(3, 2)
|
||||
#define MSK_CFG9_JUMP_VOLTAGE GENMASK(1, 0)
|
||||
|
||||
struct sy7758 {
|
||||
struct i2c_client *client;
|
||||
struct regmap *regmap;
|
||||
struct gpio_desc *gpio;
|
||||
struct backlight_device *bl;
|
||||
};
|
||||
|
||||
static const struct regmap_config sy7758_regmap_config = {
|
||||
.reg_bits = 8,
|
||||
.val_bits = 8,
|
||||
.max_register = REG_MAX,
|
||||
};
|
||||
|
||||
static int sy7758_backlight_update_status(struct backlight_device *backlight_dev)
|
||||
{
|
||||
struct sy7758 *sydev = bl_get_data(backlight_dev);
|
||||
unsigned int brightness = backlight_get_brightness(backlight_dev);
|
||||
int ret;
|
||||
|
||||
ret = regmap_write(sydev->regmap, REG_BRT_12BIT_L,
|
||||
FIELD_PREP(MSK_BRT_12BIT_L,
|
||||
brightness & 0xff));
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
ret = regmap_write(sydev->regmap, REG_BRT_12BIT_H,
|
||||
FIELD_PREP(MSK_BRT_12BIT_H,
|
||||
(brightness >> 8) & 0xf));
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct backlight_ops sy7758_backlight_ops = {
|
||||
.options = BL_CORE_SUSPENDRESUME,
|
||||
.update_status = sy7758_backlight_update_status,
|
||||
};
|
||||
|
||||
static int sy7758_init(struct sy7758 *sydev)
|
||||
{
|
||||
int ret = 0;
|
||||
|
||||
ret = regmap_write(sydev->regmap, REG_DEV_CTL,
|
||||
BIT_DEV_CTL_FAST | BIT_DEV_CTL_BL_CTLB |
|
||||
FIELD_PREP(MSK_DEV_CTL_BRT_MODE, 2));
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
ret = regmap_write(sydev->regmap, REG_BRT_12BIT_L,
|
||||
FIELD_PREP(MSK_BRT_12BIT_L,
|
||||
DEFAULT_BRIGHTNESS & 0xff));
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
ret = regmap_write(sydev->regmap, REG_BRT_12BIT_H,
|
||||
FIELD_PREP(MSK_BRT_12BIT_H,
|
||||
(DEFAULT_BRIGHTNESS >> 8)));
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
ret = regmap_write(sydev->regmap, REG_OTP_CFG5,
|
||||
FIELD_PREP(MSK_CFG5_PS_MODE, 6) |
|
||||
FIELD_PREP(MSK_CFG5_PWM_FREQ, 4));
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
ret = regmap_write(sydev->regmap, REG_OTP_CFG0,
|
||||
FIELD_PREP(MSK_CFG0_CURRENT_LOW, 85));
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
ret = regmap_write(sydev->regmap, REG_OTP_CFG1,
|
||||
BIT_CFG1_PDET_STDBY |
|
||||
FIELD_PREP(MSK_CFG1_CURRENT_MAX, 1) |
|
||||
FIELD_PREP(MSK_CFG1_CURRENT_HIGH, 10));
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
ret = regmap_write(sydev->regmap, REG_OTP_CFG9,
|
||||
FIELD_PREP(MSK_CFG9_VBST_MAX, 4));
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
ret = regmap_write(sydev->regmap, REG_OTP_CFG2,
|
||||
BIT_CFG2_BL_ON | BIT_CFG2_UVLO_EN);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int sy7758_probe(struct i2c_client *client)
|
||||
{
|
||||
struct backlight_properties props = { };
|
||||
struct device *dev = &client->dev;
|
||||
struct sy7758 *sydev;
|
||||
unsigned int dev_id;
|
||||
int ret;
|
||||
|
||||
sydev = devm_kzalloc(dev, sizeof(*sydev), GFP_KERNEL);
|
||||
if (!sydev)
|
||||
return -ENOMEM;
|
||||
|
||||
i2c_set_clientdata(client, sydev);
|
||||
|
||||
/* Initialize regmap */
|
||||
sydev->client = client;
|
||||
sydev->regmap = devm_regmap_init_i2c(client, &sy7758_regmap_config);
|
||||
if (IS_ERR(sydev->regmap))
|
||||
return dev_err_probe(dev, PTR_ERR(sydev->regmap),
|
||||
"failed to init regmap\n");
|
||||
|
||||
/* Get and enable regulator */
|
||||
ret = devm_regulator_get_enable(dev, "vdd");
|
||||
if (ret)
|
||||
return dev_err_probe(dev, ret, "failed to get regulator\n");
|
||||
|
||||
fsleep(100);
|
||||
|
||||
/* Get enable GPIO and set to high */
|
||||
sydev->gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_HIGH);
|
||||
if (IS_ERR(sydev->gpio))
|
||||
return dev_err_probe(dev, PTR_ERR(sydev->gpio),
|
||||
"failed to get enable GPIO\n");
|
||||
|
||||
/* Let some time for HW to settle */
|
||||
fsleep(10000);
|
||||
|
||||
/* try read and check device id */
|
||||
ret = regmap_read(sydev->regmap, REG_DEV_ID, &dev_id);
|
||||
if (ret < 0)
|
||||
return dev_err_probe(dev, ret, "failed to read device id\n");
|
||||
if (dev_id != 0x63) {
|
||||
dev_err(dev, "unexpected device id: 0x%02x\n", dev_id);
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
/* Initialize and set default brightness */
|
||||
ret = sy7758_init(sydev);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
props.type = BACKLIGHT_RAW;
|
||||
props.max_brightness = MAX_BRIGHTNESS;
|
||||
props.brightness = DEFAULT_BRIGHTNESS;
|
||||
props.scale = BACKLIGHT_SCALE_LINEAR;
|
||||
|
||||
sydev->bl = devm_backlight_device_register(dev, "sy7758-backlight",
|
||||
dev, sydev, &sy7758_backlight_ops,
|
||||
&props);
|
||||
if (IS_ERR(sydev->bl))
|
||||
return dev_err_probe(dev, PTR_ERR(sydev->bl),
|
||||
"failed to register backlight device\n");
|
||||
|
||||
return backlight_update_status(sydev->bl);
|
||||
}
|
||||
|
||||
static void sy7758_remove(struct i2c_client *client)
|
||||
{
|
||||
struct sy7758 *sydev = i2c_get_clientdata(client);
|
||||
|
||||
backlight_disable(sydev->bl);
|
||||
}
|
||||
|
||||
static const struct i2c_device_id sy7758_ids[] = {
|
||||
{ "sy7758" },
|
||||
{ }
|
||||
};
|
||||
MODULE_DEVICE_TABLE(i2c, sy7758_ids);
|
||||
|
||||
static const struct of_device_id sy7758_match_table[] = {
|
||||
{ .compatible = "silergy,sy7758", },
|
||||
{ },
|
||||
};
|
||||
MODULE_DEVICE_TABLE(of, sy7758_match_table);
|
||||
|
||||
static struct i2c_driver sy7758_driver = {
|
||||
.driver = {
|
||||
.name = "sy7758",
|
||||
.of_match_table = sy7758_match_table,
|
||||
},
|
||||
.probe = sy7758_probe,
|
||||
.remove = sy7758_remove,
|
||||
.id_table = sy7758_ids,
|
||||
};
|
||||
|
||||
module_i2c_driver(sy7758_driver);
|
||||
|
||||
MODULE_DESCRIPTION("Silergy SY7758 Backlight Driver");
|
||||
MODULE_AUTHOR("Kancy Joe <kancy2333@outlook.com>");
|
||||
MODULE_AUTHOR("Neil Armstrong <neil.armstrong@linaro.org>");
|
||||
MODULE_LICENSE("GPL");
|
||||
Loading…
Reference in New Issue
Block a user