| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Alexander Shiyan | 1073 | 69.27% | 7 | 36.84% |
| Philippe Rétornaz | 431 | 27.82% | 1 | 5.26% |
| Andrew Lunn | 14 | 0.90% | 1 | 5.26% |
| Alexander Kurz | 9 | 0.58% | 1 | 5.26% |
| Bryan Wu | 5 | 0.32% | 1 | 5.26% |
| Axel Lin | 4 | 0.26% | 1 | 5.26% |
| Kees Cook | 4 | 0.26% | 1 | 5.26% |
| Samuel Ortiz | 3 | 0.19% | 2 | 10.53% |
| Thomas Gleixner | 2 | 0.13% | 1 | 5.26% |
| David Jander | 2 | 0.13% | 1 | 5.26% |
| Thomas Meyer | 1 | 0.06% | 1 | 5.26% |
| Geert Uytterhoeven | 1 | 0.06% | 1 | 5.26% |
| Total | 1549 | 19 |
// SPDX-License-Identifier: GPL-2.0-only /* * LEDs driver for Freescale MC13783/MC13892/MC34708 * * Copyright (C) 2010 Philippe Rétornaz * * Based on leds-da903x: * Copyright (C) 2008 Compulab, Ltd. * Mike Rapoport <mike@compulab.co.il> * * Copyright (C) 2006-2008 Marvell International Ltd. * Eric Miao <eric.miao@marvell.com> */ #include <linux/module.h> #include <linux/kernel.h> #include <linux/platform_device.h> #include <linux/leds.h> #include <linux/of.h> #include <linux/mfd/mc13xxx.h> struct mc13xxx_led_devtype { int led_min; int led_max; int num_regs; u32 ledctrl_base; }; struct mc13xxx_led { struct led_classdev cdev; int id; struct mc13xxx_leds *leds; }; struct mc13xxx_leds { struct mc13xxx *master; struct mc13xxx_led_devtype *devtype; int num_leds; struct mc13xxx_led *led; }; static unsigned int mc13xxx_max_brightness(int id) { if (id >= MC13783_LED_MD && id <= MC13783_LED_KP) return 0x0f; else if (id >= MC13783_LED_R1 && id <= MC13783_LED_B3) return 0x1f; return 0x3f; } static int mc13xxx_led_set(struct led_classdev *led_cdev, enum led_brightness value) { struct mc13xxx_led *led = container_of(led_cdev, struct mc13xxx_led, cdev); struct mc13xxx_leds *leds = led->leds; unsigned int reg, bank, off, shift; switch (led->id) { case MC13783_LED_MD: case MC13783_LED_AD: case MC13783_LED_KP: reg = 2; shift = 9 + (led->id - MC13783_LED_MD) * 4; break; case MC13783_LED_R1: case MC13783_LED_G1: case MC13783_LED_B1: case MC13783_LED_R2: case MC13783_LED_G2: case MC13783_LED_B2: case MC13783_LED_R3: case MC13783_LED_G3: case MC13783_LED_B3: off = led->id - MC13783_LED_R1; bank = off / 3; reg = 3 + bank; shift = (off - bank * 3) * 5 + 6; break; case MC13892_LED_MD: case MC13892_LED_AD: case MC13892_LED_KP: off = led->id - MC13892_LED_MD; reg = off / 2; shift = 3 + (off - reg * 2) * 12; break; case MC13892_LED_R: case MC13892_LED_G: case MC13892_LED_B: off = led->id - MC13892_LED_R; bank = off / 2; reg = 2 + bank; shift = (off - bank * 2) * 12 + 3; break; case MC34708_LED_R: case MC34708_LED_G: reg = 0; shift = 3 + (led->id - MC34708_LED_R) * 12; break; default: BUG(); } return mc13xxx_reg_rmw(leds->master, leds->devtype->ledctrl_base + reg, mc13xxx_max_brightness(led->id) << shift, value << shift); } #ifdef CONFIG_OF static struct mc13xxx_leds_platform_data __init *mc13xxx_led_probe_dt( struct platform_device *pdev) { struct mc13xxx_leds *leds = platform_get_drvdata(pdev); struct mc13xxx_leds_platform_data *pdata; struct device_node *parent, *child; struct device *dev = &pdev->dev; int i = 0, ret = -ENODATA; pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); if (!pdata) return ERR_PTR(-ENOMEM); parent = of_get_child_by_name(dev->parent->of_node, "leds"); if (!parent) goto out_node_put; ret = of_property_read_u32_array(parent, "led-control", pdata->led_control, leds->devtype->num_regs); if (ret) goto out_node_put; pdata->num_leds = of_get_child_count(parent); pdata->led = devm_kcalloc(dev, pdata->num_leds, sizeof(*pdata->led), GFP_KERNEL); if (!pdata->led) { ret = -ENOMEM; goto out_node_put; } for_each_child_of_node(parent, child) { const char *str; u32 tmp; if (of_property_read_u32(child, "reg", &tmp)) continue; pdata->led[i].id = leds->devtype->led_min + tmp; if (!of_property_read_string(child, "label", &str)) pdata->led[i].name = str; if (!of_property_read_string(child, "linux,default-trigger", &str)) pdata->led[i].default_trigger = str; i++; } pdata->num_leds = i; ret = i > 0 ? 0 : -ENODATA; out_node_put: of_node_put(parent); return ret ? ERR_PTR(ret) : pdata; } #else static inline struct mc13xxx_leds_platform_data __init *mc13xxx_led_probe_dt( struct platform_device *pdev) { return ERR_PTR(-ENOSYS); } #endif static int __init mc13xxx_led_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct mc13xxx_leds_platform_data *pdata = dev_get_platdata(dev); struct mc13xxx *mcdev = dev_get_drvdata(dev->parent); struct mc13xxx_led_devtype *devtype = (struct mc13xxx_led_devtype *)pdev->id_entry->driver_data; struct mc13xxx_leds *leds; int i, id, ret = -ENODATA; u32 init_led = 0; leds = devm_kzalloc(dev, sizeof(*leds), GFP_KERNEL); if (!leds) return -ENOMEM; leds->devtype = devtype; leds->master = mcdev; platform_set_drvdata(pdev, leds); if (dev->parent->of_node) { pdata = mc13xxx_led_probe_dt(pdev); if (IS_ERR(pdata)) return PTR_ERR(pdata); } else if (!pdata) return -ENODATA; leds->num_leds = pdata->num_leds; if ((leds->num_leds < 1) || (leds->num_leds > (devtype->led_max - devtype->led_min + 1))) { dev_err(dev, "Invalid LED count %d\n", leds->num_leds); return -EINVAL; } leds->led = devm_kcalloc(dev, leds->num_leds, sizeof(*leds->led), GFP_KERNEL); if (!leds->led) return -ENOMEM; for (i = 0; i < devtype->num_regs; i++) { ret = mc13xxx_reg_write(mcdev, leds->devtype->ledctrl_base + i, pdata->led_control[i]); if (ret) return ret; } for (i = 0; i < leds->num_leds; i++) { const char *name, *trig; ret = -EINVAL; id = pdata->led[i].id; name = pdata->led[i].name; trig = pdata->led[i].default_trigger; if ((id > devtype->led_max) || (id < devtype->led_min)) { dev_err(dev, "Invalid ID %i\n", id); break; } if (init_led & (1 << id)) { dev_warn(dev, "LED %i already initialized\n", id); break; } init_led |= 1 << id; leds->led[i].id = id; leds->led[i].leds = leds; leds->led[i].cdev.name = name; leds->led[i].cdev.default_trigger = trig; leds->led[i].cdev.flags = LED_CORE_SUSPENDRESUME; leds->led[i].cdev.brightness_set_blocking = mc13xxx_led_set; leds->led[i].cdev.max_brightness = mc13xxx_max_brightness(id); ret = led_classdev_register(dev->parent, &leds->led[i].cdev); if (ret) { dev_err(dev, "Failed to register LED %i\n", id); break; } } if (ret) while (--i >= 0) led_classdev_unregister(&leds->led[i].cdev); return ret; } static int mc13xxx_led_remove(struct platform_device *pdev) { struct mc13xxx_leds *leds = platform_get_drvdata(pdev); int i; for (i = 0; i < leds->num_leds; i++) led_classdev_unregister(&leds->led[i].cdev); return 0; } static const struct mc13xxx_led_devtype mc13783_led_devtype = { .led_min = MC13783_LED_MD, .led_max = MC13783_LED_B3, .num_regs = 6, .ledctrl_base = 51, }; static const struct mc13xxx_led_devtype mc13892_led_devtype = { .led_min = MC13892_LED_MD, .led_max = MC13892_LED_B, .num_regs = 4, .ledctrl_base = 51, }; static const struct mc13xxx_led_devtype mc34708_led_devtype = { .led_min = MC34708_LED_R, .led_max = MC34708_LED_G, .num_regs = 1, .ledctrl_base = 54, }; static const struct platform_device_id mc13xxx_led_id_table[] = { { "mc13783-led", (kernel_ulong_t)&mc13783_led_devtype, }, { "mc13892-led", (kernel_ulong_t)&mc13892_led_devtype, }, { "mc34708-led", (kernel_ulong_t)&mc34708_led_devtype, }, { } }; MODULE_DEVICE_TABLE(platform, mc13xxx_led_id_table); static struct platform_driver mc13xxx_led_driver = { .driver = { .name = "mc13xxx-led", }, .remove = mc13xxx_led_remove, .id_table = mc13xxx_led_id_table, }; module_platform_driver_probe(mc13xxx_led_driver, mc13xxx_led_probe); MODULE_DESCRIPTION("LEDs driver for Freescale MC13XXX PMIC"); MODULE_AUTHOR("Philippe Retornaz <philippe.retornaz@epfl.ch>"); MODULE_LICENSE("GPL");