diff options
Diffstat (limited to 'drivers/video')
| -rw-r--r-- | drivers/video/backlight/88pm860x_bl.c | 146 | ||||
| -rw-r--r-- | drivers/video/backlight/Kconfig | 7 | ||||
| -rw-r--r-- | drivers/video/backlight/Makefile | 1 | ||||
| -rw-r--r-- | drivers/video/backlight/max8925_bl.c | 79 | ||||
| -rw-r--r-- | drivers/video/backlight/tps65217_bl.c | 342 |
5 files changed, 470 insertions, 105 deletions
diff --git a/drivers/video/backlight/88pm860x_bl.c b/drivers/video/backlight/88pm860x_bl.c index f49181c7311..b7ec34c57f4 100644 --- a/drivers/video/backlight/88pm860x_bl.c +++ b/drivers/video/backlight/88pm860x_bl.c @@ -11,6 +11,7 @@ #include <linux/init.h> #include <linux/kernel.h> +#include <linux/of.h> #include <linux/platform_device.h> #include <linux/slab.h> #include <linux/fb.h> @@ -31,57 +32,26 @@ struct pm860x_backlight_data { int port; int pwm; int iset; + int reg_duty_cycle; + int reg_always_on; + int reg_current; }; -static inline int wled_a(int port) -{ - int ret; - - ret = ((port - PM8606_BACKLIGHT1) << 1) + 2; - return ret; -} - -static inline int wled_b(int port) -{ - int ret; - - ret = ((port - PM8606_BACKLIGHT1) << 1) + 3; - return ret; -} - -/* WLED2 & WLED3 share the same IDC */ -static inline int wled_idc(int port) -{ - int ret; - - switch (port) { - case PM8606_BACKLIGHT1: - case PM8606_BACKLIGHT2: - ret = ((port - PM8606_BACKLIGHT1) << 1) + 3; - break; - case PM8606_BACKLIGHT3: - default: - ret = ((port - PM8606_BACKLIGHT2) << 1) + 3; - break; - } - return ret; -} - static int backlight_power_set(struct pm860x_chip *chip, int port, int on) { int ret = -EINVAL; switch (port) { - case PM8606_BACKLIGHT1: + case 0: ret = on ? pm8606_osc_enable(chip, WLED1_DUTY) : pm8606_osc_disable(chip, WLED1_DUTY); break; - case PM8606_BACKLIGHT2: + case 1: ret = on ? pm8606_osc_enable(chip, WLED2_DUTY) : pm8606_osc_disable(chip, WLED2_DUTY); break; - case PM8606_BACKLIGHT3: + case 2: ret = on ? pm8606_osc_enable(chip, WLED3_DUTY) : pm8606_osc_disable(chip, WLED3_DUTY); break; @@ -104,13 +74,13 @@ static int pm860x_backlight_set(struct backlight_device *bl, int brightness) if (brightness) backlight_power_set(chip, data->port, 1); - ret = pm860x_reg_write(data->i2c, wled_a(data->port), value); + ret = pm860x_reg_write(data->i2c, data->reg_duty_cycle, value); if (ret < 0) goto out; if ((data->current_brightness == 0) && brightness) { if (data->iset) { - ret = pm860x_set_bits(data->i2c, wled_idc(data->port), + ret = pm860x_set_bits(data->i2c, data->reg_current, CURRENT_BITMASK, data->iset); if (ret < 0) goto out; @@ -123,17 +93,17 @@ static int pm860x_backlight_set(struct backlight_device *bl, int brightness) } if (brightness == MAX_BRIGHTNESS) { /* set WLED_ON bit as 100% */ - ret = pm860x_set_bits(data->i2c, wled_b(data->port), + ret = pm860x_set_bits(data->i2c, data->reg_always_on, PM8606_WLED_ON, PM8606_WLED_ON); } } else { if (brightness == MAX_BRIGHTNESS) { /* set WLED_ON bit as 100% */ - ret = pm860x_set_bits(data->i2c, wled_b(data->port), + ret = pm860x_set_bits(data->i2c, data->reg_always_on, PM8606_WLED_ON, PM8606_WLED_ON); } else { /* clear WLED_ON bit since it's not 100% */ - ret = pm860x_set_bits(data->i2c, wled_b(data->port), + ret = pm860x_set_bits(data->i2c, data->reg_always_on, PM8606_WLED_ON, 0); } } @@ -174,7 +144,7 @@ static int pm860x_backlight_get_brightness(struct backlight_device *bl) struct pm860x_chip *chip = data->chip; int ret; - ret = pm860x_reg_read(data->i2c, wled_a(data->port)); + ret = pm860x_reg_read(data->i2c, data->reg_duty_cycle); if (ret < 0) goto out; data->current_brightness = ret; @@ -190,45 +160,85 @@ static const struct backlight_ops pm860x_backlight_ops = { .get_brightness = pm860x_backlight_get_brightness, }; +#ifdef CONFIG_OF +static int pm860x_backlight_dt_init(struct platform_device *pdev, + struct pm860x_backlight_data *data, + char *name) +{ + struct device_node *nproot = pdev->dev.parent->of_node, *np; + int iset = 0; + if (!nproot) + return -ENODEV; + nproot = of_find_node_by_name(nproot, "backlights"); + if (!nproot) { + dev_err(&pdev->dev, "failed to find backlights node\n"); + return -ENODEV; + } + for_each_child_of_node(nproot, np) { + if (!of_node_cmp(np->name, name)) { + of_property_read_u32(np, "marvell,88pm860x-iset", + &iset); + data->iset = PM8606_WLED_CURRENT(iset); + of_property_read_u32(np, "marvell,88pm860x-pwm", + &data->pwm); + break; + } + } + return 0; +} +#else +#define pm860x_backlight_dt_init(x, y, z) (-1) +#endif + static int pm860x_backlight_probe(struct platform_device *pdev) { struct pm860x_chip *chip = dev_get_drvdata(pdev->dev.parent); - struct pm860x_backlight_pdata *pdata = NULL; + struct pm860x_backlight_pdata *pdata = pdev->dev.platform_data; struct pm860x_backlight_data *data; struct backlight_device *bl; struct resource *res; struct backlight_properties props; char name[MFD_NAME_SIZE]; - int ret; - - res = platform_get_resource(pdev, IORESOURCE_IO, 0); - if (res == NULL) { - dev_err(&pdev->dev, "No I/O resource!\n"); - return -EINVAL; - } - - pdata = pdev->dev.platform_data; - if (pdata == NULL) { - dev_err(&pdev->dev, "platform data isn't assigned to " - "backlight\n"); - return -EINVAL; - } + int ret = 0; data = devm_kzalloc(&pdev->dev, sizeof(struct pm860x_backlight_data), GFP_KERNEL); if (data == NULL) return -ENOMEM; - strncpy(name, res->name, MFD_NAME_SIZE); + res = platform_get_resource_byname(pdev, IORESOURCE_REG, "duty cycle"); + if (!res) { + dev_err(&pdev->dev, "No REG resource for duty cycle\n"); + ret = -ENXIO; + goto out; + } + data->reg_duty_cycle = res->start; + res = platform_get_resource_byname(pdev, IORESOURCE_REG, "always on"); + if (!res) { + dev_err(&pdev->dev, "No REG resorce for always on\n"); + ret = -ENXIO; + goto out; + } + data->reg_always_on = res->start; + res = platform_get_resource_byname(pdev, IORESOURCE_REG, "current"); + if (!res) { + dev_err(&pdev->dev, "No REG resource for current\n"); + ret = -ENXIO; + goto out; + } + data->reg_current = res->start; + + memset(name, 0, MFD_NAME_SIZE); + sprintf(name, "backlight-%d", pdev->id); + data->port = pdev->id; data->chip = chip; data->i2c = (chip->id == CHIP_PM8606) ? chip->client \ : chip->companion; data->current_brightness = MAX_BRIGHTNESS; - data->pwm = pdata->pwm; - data->iset = pdata->iset; - data->port = pdata->flags; - if (data->port < 0) { - dev_err(&pdev->dev, "wrong platform data is assigned"); - return -EINVAL; + if (pm860x_backlight_dt_init(pdev, data, name)) { + if (pdata) { + data->pwm = pdata->pwm; + data->iset = pdata->iset; + } } memset(&props, 0, sizeof(struct backlight_properties)); @@ -247,12 +257,14 @@ static int pm860x_backlight_probe(struct platform_device *pdev) /* read current backlight */ ret = pm860x_backlight_get_brightness(bl); if (ret < 0) - goto out; + goto out_brt; backlight_update_status(bl); return 0; -out: +out_brt: backlight_device_unregister(bl); +out: + devm_kfree(&pdev->dev, data); return ret; } diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig index 03e5719c914..c101697a4ba 100644 --- a/drivers/video/backlight/Kconfig +++ b/drivers/video/backlight/Kconfig @@ -382,6 +382,13 @@ config BACKLIGHT_PANDORA If you have a Pandora console, say Y to enable the backlight driver. +config BACKLIGHT_TPS65217 + tristate "TPS65217 Backlight" + depends on BACKLIGHT_CLASS_DEVICE && MFD_TPS65217 + help + If you have a Texas Instruments TPS65217 say Y to enable the + backlight driver. + endif # BACKLIGHT_CLASS_DEVICE endif # BACKLIGHT_LCD_SUPPORT diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile index 7817e07f05f..e7ce7291635 100644 --- a/drivers/video/backlight/Makefile +++ b/drivers/video/backlight/Makefile @@ -44,3 +44,4 @@ obj-$(CONFIG_BACKLIGHT_88PM860X) += 88pm860x_bl.o obj-$(CONFIG_BACKLIGHT_PCF50633) += pcf50633-backlight.o obj-$(CONFIG_BACKLIGHT_AAT2870) += aat2870_bl.o obj-$(CONFIG_BACKLIGHT_OT200) += ot200_bl.o +obj-$(CONFIG_BACKLIGHT_TPS65217) += tps65217_bl.o diff --git a/drivers/video/backlight/max8925_bl.c b/drivers/video/backlight/max8925_bl.c index e833ac72e06..f72ba54f364 100644 --- a/drivers/video/backlight/max8925_bl.c +++ b/drivers/video/backlight/max8925_bl.c @@ -27,7 +27,9 @@ struct max8925_backlight_data { struct max8925_chip *chip; - int current_brightness; + int current_brightness; + int reg_mode_cntl; + int reg_cntl; }; static int max8925_backlight_set(struct backlight_device *bl, int brightness) @@ -42,16 +44,16 @@ static int max8925_backlight_set(struct backlight_device *bl, int brightness) else value = brightness; - ret = max8925_reg_write(chip->i2c, MAX8925_WLED_CNTL, value); + ret = max8925_reg_write(chip->i2c, data->reg_cntl, value); if (ret < 0) goto out; if (!data->current_brightness && brightness) /* enable WLED output */ - ret = max8925_set_bits(chip->i2c, MAX8925_WLED_MODE_CNTL, 1, 1); + ret = max8925_set_bits(chip->i2c, data->reg_mode_cntl, 1, 1); else if (!brightness) /* disable WLED output */ - ret = max8925_set_bits(chip->i2c, MAX8925_WLED_MODE_CNTL, 1, 0); + ret = max8925_set_bits(chip->i2c, data->reg_mode_cntl, 1, 0); if (ret < 0) goto out; dev_dbg(chip->dev, "set brightness %d\n", value); @@ -85,7 +87,7 @@ static int max8925_backlight_get_brightness(struct backlight_device *bl) struct max8925_chip *chip = data->chip; int ret; - ret = max8925_reg_read(chip->i2c, MAX8925_WLED_CNTL); + ret = max8925_reg_read(chip->i2c, data->reg_cntl); if (ret < 0) return -EINVAL; data->current_brightness = ret; @@ -102,69 +104,70 @@ static const struct backlight_ops max8925_backlight_ops = { static int __devinit max8925_backlight_probe(struct platform_device *pdev) { struct max8925_chip *chip = dev_get_drvdata(pdev->dev.parent); - struct max8925_platform_data *max8925_pdata; - struct max8925_backlight_pdata *pdata = NULL; + struct max8925_backlight_pdata *pdata = pdev->dev.platform_data; struct max8925_backlight_data *data; struct backlight_device *bl; struct backlight_properties props; struct resource *res; - char name[MAX8925_NAME_SIZE]; unsigned char value; - int ret; - - res = platform_get_resource(pdev, IORESOURCE_IO, 0); - if (res == NULL) { - dev_err(&pdev->dev, "No I/O resource!\n"); - return -EINVAL; - } - - if (pdev->dev.parent->platform_data) { - max8925_pdata = pdev->dev.parent->platform_data; - pdata = max8925_pdata->backlight; - } - - if (!pdata) { - dev_err(&pdev->dev, "platform data isn't assigned to " - "backlight\n"); - return -EINVAL; - } + int ret = 0; data = devm_kzalloc(&pdev->dev, sizeof(struct max8925_backlight_data), GFP_KERNEL); if (data == NULL) return -ENOMEM; - strncpy(name, res->name, MAX8925_NAME_SIZE); + + res = platform_get_resource(pdev, IORESOURCE_REG, 0); + if (!res) { + dev_err(&pdev->dev, "No REG resource for mode control!\n"); + ret = -ENXIO; + goto out; + } + data->reg_mode_cntl = res->start; + res = platform_get_resource(pdev, IORESOURCE_REG, 1); + if (!res) { + dev_err(&pdev->dev, "No REG resource for control!\n"); + ret = -ENXIO; + goto out; + } + data->reg_cntl = res->start; + data->chip = chip; data->current_brightness = 0; memset(&props, 0, sizeof(struct backlight_properties)); props.type = BACKLIGHT_RAW; props.max_brightness = MAX_BRIGHTNESS; - bl = backlight_device_register(name, &pdev->dev, data, + bl = backlight_device_register("max8925-backlight", &pdev->dev, data, &max8925_backlight_ops, &props); if (IS_ERR(bl)) { dev_err(&pdev->dev, "failed to register backlight\n"); - return PTR_ERR(bl); + ret = PTR_ERR(bl); + goto out; } bl->props.brightness = MAX_BRIGHTNESS; platform_set_drvdata(pdev, bl); value = 0; - if (pdata->lxw_scl) - value |= (1 << 7); - if (pdata->lxw_freq) - value |= (LWX_FREQ(pdata->lxw_freq) << 4); - if (pdata->dual_string) - value |= (1 << 1); - ret = max8925_set_bits(chip->i2c, MAX8925_WLED_MODE_CNTL, 0xfe, value); + if (pdata) { + if (pdata->lxw_scl) + value |= (1 << 7); + if (pdata->lxw_freq) + value |= (LWX_FREQ(pdata->lxw_freq) << 4); + if (pdata->dual_string) + value |= (1 << 1); + } + ret = max8925_set_bits(chip->i2c, data->reg_mode_cntl, 0xfe, value); if (ret < 0) - goto out; + goto out_brt; backlight_update_status(bl); return 0; -out: +out_brt: backlight_device_unregister(bl); +out: + devm_kfree(&pdev->dev, data); return ret; } diff --git a/drivers/video/backlight/tps65217_bl.c b/drivers/video/backlight/tps65217_bl.c new file mode 100644 index 00000000000..70881633b45 --- /dev/null +++ b/drivers/video/backlight/tps65217_bl.c @@ -0,0 +1,342 @@ +/* + * tps65217_bl.c + * + * TPS65217 backlight driver + * + * Copyright (C) 2012 Matthias Kaehlcke + * Author: Matthias Kaehlcke <matthias@kaehlcke.net> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation version 2. + * + * This program is distributed "as is" WITHOUT ANY WARRANTY of any + * kind, whether express or implied; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/kernel.h> +#include <linux/backlight.h> +#include <linux/err.h> +#include <linux/fb.h> +#include <linux/mfd/tps65217.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/slab.h> + +struct tps65217_bl { + struct tps65217 *tps; + struct device *dev; + struct backlight_device *bl; + bool is_enabled; +}; + +static int tps65217_bl_enable(struct tps65217_bl *tps65217_bl) +{ + int rc; + + rc = tps65217_set_bits(tps65217_bl->tps, TPS65217_REG_WLEDCTRL1, + TPS65217_WLEDCTRL1_ISINK_ENABLE, + TPS65217_WLEDCTRL1_ISINK_ENABLE, TPS65217_PROTECT_NONE); + if (rc) { + dev_err(tps65217_bl->dev, + "failed to enable backlight: %d\n", rc); + return rc; + } + + tps65217_bl->is_enabled = true; + + dev_dbg(tps65217_bl->dev, "backlight enabled\n"); + + return 0; +} + +static int tps65217_bl_disable(struct tps65217_bl *tps65217_bl) +{ + int rc; + + rc = tps65217_clear_bits(tps65217_bl->tps, + TPS65217_REG_WLEDCTRL1, + TPS65217_WLEDCTRL1_ISINK_ENABLE, + TPS65217_PROTECT_NONE); + if (rc) { + dev_err(tps65217_bl->dev, + "failed to disable backlight: %d\n", rc); + return rc; + } + + tps65217_bl->is_enabled = false; + + dev_dbg(tps65217_bl->dev, "backlight disabled\n"); + + return 0; +} + +static int tps65217_bl_update_status(struct backlight_device *bl) +{ + struct tps65217_bl *tps65217_bl = bl_get_data(bl); + int rc; + int brightness = bl->props.brightness; + + if (bl->props.state & BL_CORE_SUSPENDED) + brightness = 0; + + if ((bl->props.power != FB_BLANK_UNBLANK) || + (bl->props.fb_blank != FB_BLANK_UNBLANK)) + /* framebuffer in low power mode or blanking active */ + brightness = 0; + + if (brightness > 0) { + rc = tps65217_reg_write(tps65217_bl->tps, + TPS65217_REG_WLEDCTRL2, + brightness - 1, + TPS65217_PROTECT_NONE); + if (rc) { + dev_err(tps65217_bl->dev, + "failed to set brightness level: %d\n", rc); + return rc; + } + + dev_dbg(tps65217_bl->dev, "brightness set to %d\n", brightness); + + if (!tps65217_bl->is_enabled) + rc = tps65217_bl_enable(tps65217_bl); + } else { + rc = tps65217_bl_disable(tps65217_bl); + } + + return rc; +} + +static int tps65217_bl_get_brightness(struct backlight_device *bl) +{ + return bl->props.brightness; +} + +static const struct backlight_ops tps65217_bl_ops = { + .options = BL_CORE_SUSPENDRESUME, + .update_status = tps65217_bl_update_status, + .get_brightness = tps65217_bl_get_brightness +}; + +static int tps65217_bl_hw_init(struct tps65217_bl *tps65217_bl, + struct tps65217_bl_pdata *pdata) +{ + int rc; + + rc = tps65217_bl_disable(tps65217_bl); + if (rc) + return rc; + + switch (pdata->isel) { + case TPS65217_BL_ISET1: + /* select ISET_1 current level */ + rc = tps65217_clear_bits(tps65217_bl->tps, + TPS65217_REG_WLEDCTRL1, + TPS65217_WLEDCTRL1_ISEL, + TPS65217_PROTECT_NONE); + if (rc) { + dev_err(tps65217_bl->dev, + "failed to select ISET1 current level: %d)\n", + rc); + return rc; + } + + dev_dbg(tps65217_bl->dev, "selected ISET1 current level\n"); + + break; + + case TPS65217_BL_ISET2: + /* select ISET2 current level */ + rc = tps65217_set_bits(tps65217_bl->tps, TPS65217_REG_WLEDCTRL1, + TPS65217_WLEDCTRL1_ISEL, + TPS65217_WLEDCTRL1_ISEL, TPS65217_PROTECT_NONE); + if (rc) { + dev_err(tps65217_bl->dev, + "failed to select ISET2 current level: %d\n", + rc); + return rc; + } + + dev_dbg(tps65217_bl->dev, "selected ISET2 current level\n"); + + break; + + default: + dev_err(tps65217_bl->dev, + "invalid value for current level: %d\n", pdata->isel); + return -EINVAL; + } + + /* set PWM frequency */ + rc = tps65217_set_bits(tps65217_bl->tps, + TPS65217_REG_WLEDCTRL1, + TPS65217_WLEDCTRL1_FDIM_MASK, + pdata->fdim, + TPS65217_PROTECT_NONE); + if (rc) { + dev_err(tps65217_bl->dev, + "failed to select PWM dimming frequency: %d\n", + rc); + return rc; + } + + return 0; +} + +#ifdef CONFIG_OF +static struct tps65217_bl_pdata * +tps65217_bl_parse_dt(struct platform_device *pdev) +{ + struct tps65217 *tps = dev_get_drvdata(pdev->dev.parent); + struct device_node *node = of_node_get(tps->dev->of_node); + struct tps65217_bl_pdata *pdata, *err; + u32 val; + + node = of_find_node_by_name(node, "backlight"); + if (!node) + return ERR_PTR(-ENODEV); + + pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) { + dev_err(&pdev->dev, "failed to allocate platform data\n"); + err = ERR_PTR(-ENOMEM); + goto err; + } + + pdata->isel = TPS65217_BL_ISET1; + if (!of_property_read_u32(node, "isel", &val)) { + if (val < TPS65217_BL_ISET1 || + val > TPS65217_BL_ISET2) { + dev_err(&pdev->dev, + "invalid 'isel' value in the device tree\n"); + err = ERR_PTR(-EINVAL); + goto err; + } + + pdata->isel = val; + } + + pdata->fdim = TPS65217_BL_FDIM_200HZ; + if (!of_property_read_u32(node, "fdim", &val)) { + switch (val) { + case 100: + pdata->fdim = TPS65217_BL_FDIM_100HZ; + break; + + case 200: + pdata->fdim = TPS65217_BL_FDIM_200HZ; + break; + + case 500: + pdata->fdim = TPS65217_BL_FDIM_500HZ; + break; + + case 1000: + pdata->fdim = TPS65217_BL_FDIM_1000HZ; + break; + + default: + dev_err(&pdev->dev, + "invalid 'fdim' value in the device tree\n"); + err = ERR_PTR(-EINVAL); + goto err; + } + } + + of_node_put(node); + + return pdata; + +err: + of_node_put(node); + + return err; +} +#else +static struct tps65217_bl_pdata * +tps65217_bl_parse_dt(struct platform_device *pdev) +{ + return NULL; +} +#endif + +static int tps65217_bl_probe(struct platform_device *pdev) +{ + int rc; + struct tps65217 *tps = dev_get_drvdata(pdev->dev.parent); + struct tps65217_bl *tps65217_bl; + struct tps65217_bl_pdata *pdata; + struct backlight_properties bl_props; + + if (tps->dev->of_node) { + pdata = tps65217_bl_parse_dt(pdev); + if (IS_ERR(pdata)) + return PTR_ERR(pdata); + } else { + if (!pdev->dev.platform_data) { + dev_err(&pdev->dev, "no platform data provided\n"); + return -EINVAL; + } + + pdata = pdev->dev.platform_data; + } + + tps65217_bl = devm_kzalloc(&pdev->dev, sizeof(*tps65217_bl), + GFP_KERNEL); + if (tps65217_bl == NULL) { + dev_err(&pdev->dev, "allocation of struct tps65217_bl failed\n"); + return -ENOMEM; + } + + tps65217_bl->tps = tps; + tps65217_bl->dev = &pdev->dev; + tps65217_bl->is_enabled = false; + + rc = tps65217_bl_hw_init(tps65217_bl, pdata); + if (rc) + return rc; + + memset(&bl_props, 0, sizeof(struct backlight_properties)); + bl_props.type = BACKLIGHT_RAW; + bl_props.max_brightness = 100; + + tps65217_bl->bl = backlight_device_register(pdev->name, + tps65217_bl->dev, tps65217_bl, + &tps65217_bl_ops, &bl_props); + if (IS_ERR(tps65217_bl->bl)) { + dev_err(tps65217_bl->dev, + "registration of backlight device failed: %d\n", rc); + return PTR_ERR(tps65217_bl->bl); + } + + tps65217_bl->bl->props.brightness = 0; + platform_set_drvdata(pdev, tps65217_bl); + + return 0; +} + +static int tps65217_bl_remove(struct platform_device *pdev) +{ + struct tps65217_bl *tps65217_bl = platform_get_drvdata(pdev); + + backlight_device_unregister(tps65217_bl->bl); + + return 0; +} + +static struct platform_driver tps65217_bl_driver = { + .probe = tps65217_bl_probe, + .remove = tps65217_bl_remove, + .driver = { + .owner = THIS_MODULE, + .name = "tps65217-bl", + }, +}; + +module_platform_driver(tps65217_bl_driver); + +MODULE_DESCRIPTION("TPS65217 Backlight driver"); +MODULE_LICENSE("GPL v2"); +MODULE_AUTHOR("Matthias Kaehlcke <matthias@kaehlcke.net>"); |