diff options
Diffstat (limited to 'drivers/leds/simple/simatic-ipc-leds.c')
-rw-r--r-- | drivers/leds/simple/simatic-ipc-leds.c | 80 |
1 files changed, 4 insertions, 76 deletions
diff --git a/drivers/leds/simple/simatic-ipc-leds.c b/drivers/leds/simple/simatic-ipc-leds.c index 078d43f5ba38..4894c228c165 100644 --- a/drivers/leds/simple/simatic-ipc-leds.c +++ b/drivers/leds/simple/simatic-ipc-leds.c @@ -23,7 +23,7 @@ #define SIMATIC_IPC_LED_PORT_BASE 0x404E struct simatic_ipc_led { - unsigned int value; /* mask for io and offset for mem */ + unsigned int value; /* mask for io */ char *name; struct led_classdev cdev; }; @@ -38,21 +38,6 @@ static struct simatic_ipc_led simatic_ipc_leds_io[] = { { } }; -/* the actual start will be discovered with PCI, 0 is a placeholder */ -static struct resource simatic_ipc_led_mem_res = DEFINE_RES_MEM_NAMED(0, SZ_4K, KBUILD_MODNAME); - -static void __iomem *simatic_ipc_led_memory; - -static struct simatic_ipc_led simatic_ipc_leds_mem[] = { - {0x500 + 0x1A0, "red:" LED_FUNCTION_STATUS "-1"}, - {0x500 + 0x1A8, "green:" LED_FUNCTION_STATUS "-1"}, - {0x500 + 0x1C8, "red:" LED_FUNCTION_STATUS "-2"}, - {0x500 + 0x1D0, "green:" LED_FUNCTION_STATUS "-2"}, - {0x500 + 0x1E0, "red:" LED_FUNCTION_STATUS "-3"}, - {0x500 + 0x198, "green:" LED_FUNCTION_STATUS "-3"}, - { } -}; - static struct resource simatic_ipc_led_io_res = DEFINE_RES_IO_NAMED(SIMATIC_IPC_LED_PORT_BASE, SZ_2, KBUILD_MODNAME); @@ -88,28 +73,6 @@ static enum led_brightness simatic_ipc_led_get_io(struct led_classdev *led_cd) return inw(SIMATIC_IPC_LED_PORT_BASE) & led->value ? LED_OFF : led_cd->max_brightness; } -static void simatic_ipc_led_set_mem(struct led_classdev *led_cd, - enum led_brightness brightness) -{ - struct simatic_ipc_led *led = cdev_to_led(led_cd); - void __iomem *reg = simatic_ipc_led_memory + led->value; - u32 val; - - val = readl(reg); - val = (val & ~1) | (brightness == LED_OFF); - writel(val, reg); -} - -static enum led_brightness simatic_ipc_led_get_mem(struct led_classdev *led_cd) -{ - struct simatic_ipc_led *led = cdev_to_led(led_cd); - void __iomem *reg = simatic_ipc_led_memory + led->value; - u32 val; - - val = readl(reg); - return (val & 1) ? LED_OFF : led_cd->max_brightness; -} - static int simatic_ipc_leds_probe(struct platform_device *pdev) { const struct simatic_ipc_platform *plat = pdev->dev.platform_data; @@ -117,9 +80,7 @@ static int simatic_ipc_leds_probe(struct platform_device *pdev) struct simatic_ipc_led *ipcled; struct led_classdev *cdev; struct resource *res; - void __iomem *reg; - int err, type; - u32 val; + int err; switch (plat->devmode) { case SIMATIC_IPC_DEVICE_227D: @@ -134,52 +95,19 @@ static int simatic_ipc_leds_probe(struct platform_device *pdev) } ipcled = simatic_ipc_leds_io; } - type = IORESOURCE_IO; if (!devm_request_region(dev, res->start, resource_size(res), KBUILD_MODNAME)) { dev_err(dev, "Unable to register IO resource at %pR\n", res); return -EBUSY; } break; - case SIMATIC_IPC_DEVICE_127E: - res = &simatic_ipc_led_mem_res; - ipcled = simatic_ipc_leds_mem; - type = IORESOURCE_MEM; - - /* get GPIO base from PCI */ - res->start = simatic_ipc_get_membase0(PCI_DEVFN(13, 0)); - if (res->start == 0) - return -ENODEV; - - /* do the final address calculation */ - res->start = res->start + (0xC5 << 16); - res->end += res->start; - - simatic_ipc_led_memory = devm_ioremap_resource(dev, res); - if (IS_ERR(simatic_ipc_led_memory)) - return PTR_ERR(simatic_ipc_led_memory); - - /* initialize power/watchdog LED */ - reg = simatic_ipc_led_memory + 0x500 + 0x1D8; /* PM_WDT_OUT */ - val = readl(reg); - writel(val & ~1, reg); - - reg = simatic_ipc_led_memory + 0x500 + 0x1C0; /* PM_BIOS_BOOT_N */ - val = readl(reg); - writel(val | 1, reg); - break; default: return -ENODEV; } while (ipcled->value) { cdev = &ipcled->cdev; - if (type == IORESOURCE_MEM) { - cdev->brightness_set = simatic_ipc_led_set_mem; - cdev->brightness_get = simatic_ipc_led_get_mem; - } else { - cdev->brightness_set = simatic_ipc_led_set_io; - cdev->brightness_get = simatic_ipc_led_get_io; - } + cdev->brightness_set = simatic_ipc_led_set_io; + cdev->brightness_get = simatic_ipc_led_get_io; cdev->max_brightness = LED_ON; cdev->name = ipcled->name; |