diff options
Diffstat (limited to 'drivers/mfd/asic3.c')
| -rw-r--r-- | drivers/mfd/asic3.c | 30 |
1 files changed, 14 insertions, 16 deletions
diff --git a/drivers/mfd/asic3.c b/drivers/mfd/asic3.c index a726f01e3..4dca6bc61 100644 --- a/drivers/mfd/asic3.c +++ b/drivers/mfd/asic3.c @@ -167,7 +167,6 @@ static void asic3_irq_demux(struct irq_desc *desc) base = ASIC3_GPIO_A_BASE + bank * ASIC3_GPIO_BASE_INCR; - spin_lock_irqsave(&asic->lock, flags); istat = asic3_read_register(asic, base + @@ -502,7 +501,8 @@ static int asic3_gpio_get(struct gpio_chip *chip, return -EINVAL; } - return asic3_read_register(asic, gpio_base + ASIC3_GPIO_STATUS) & mask; + return !!(asic3_read_register(asic, + gpio_base + ASIC3_GPIO_STATUS) & mask); } static void asic3_gpio_set(struct gpio_chip *chip, @@ -536,8 +536,6 @@ static void asic3_gpio_set(struct gpio_chip *chip, asic3_write_register(asic, gpio_base + ASIC3_GPIO_OUT, out_reg); spin_unlock_irqrestore(&asic->lock, flags); - - return; } static int asic3_gpio_to_irq(struct gpio_chip *chip, unsigned offset) @@ -665,18 +663,18 @@ static int ds1wm_enable(struct platform_device *pdev) asic3_clk_enable(asic, &asic->clocks[ASIC3_CLOCK_EX0]); asic3_clk_enable(asic, &asic->clocks[ASIC3_CLOCK_EX1]); asic3_clk_enable(asic, &asic->clocks[ASIC3_CLOCK_OWM]); - msleep(1); + usleep_range(1000, 5000); /* Reset and enable DS1WM */ asic3_set_register(asic, ASIC3_OFFSET(EXTCF, RESET), ASIC3_EXTCF_OWM_RESET, 1); - msleep(1); + usleep_range(1000, 5000); asic3_set_register(asic, ASIC3_OFFSET(EXTCF, RESET), ASIC3_EXTCF_OWM_RESET, 0); - msleep(1); + usleep_range(1000, 5000); asic3_set_register(asic, ASIC3_OFFSET(EXTCF, SELECT), ASIC3_EXTCF_OWM_EN, 1); - msleep(1); + usleep_range(1000, 5000); return 0; } @@ -757,7 +755,7 @@ static int asic3_mmc_enable(struct platform_device *pdev) * when HCLK is stopped. */ asic3_clk_enable(asic, &asic->clocks[ASIC3_CLOCK_EX1]); - msleep(1); + usleep_range(1000, 5000); /* HCLK 24.576 MHz, BCLK 12.288 MHz: */ asic3_write_register(asic, ASIC3_OFFSET(CLOCK, SEL), @@ -765,7 +763,7 @@ static int asic3_mmc_enable(struct platform_device *pdev) asic3_clk_enable(asic, &asic->clocks[ASIC3_CLOCK_SD_HOST]); asic3_clk_enable(asic, &asic->clocks[ASIC3_CLOCK_SD_BUS]); - msleep(1); + usleep_range(1000, 5000); asic3_set_register(asic, ASIC3_OFFSET(EXTCF, SELECT), ASIC3_EXTCF_SD_MEM_ENABLE, 1); @@ -841,7 +839,7 @@ static int asic3_leds_suspend(struct platform_device *pdev) struct asic3 *asic = dev_get_drvdata(pdev->dev.parent); while (asic3_gpio_get(&asic->gpio, ASIC3_GPIO(C, cell->id)) != 0) - msleep(1); + usleep_range(1000, 5000); asic3_clk_disable(asic, &asic->clocks[clock_ledn[cell->id]]); @@ -900,8 +898,8 @@ static int __init asic3_mfd_probe(struct platform_device *pdev, /* MMC */ if (mem_sdio) { - asic->tmio_cnf = ioremap((ASIC3_SD_CONFIG_BASE >> asic->bus_shift) + - mem_sdio->start, + asic->tmio_cnf = ioremap((ASIC3_SD_CONFIG_BASE >> + asic->bus_shift) + mem_sdio->start, ASIC3_SD_CONFIG_SIZE >> asic->bus_shift); if (!asic->tmio_cnf) { ret = -ENOMEM; @@ -962,10 +960,8 @@ static int __init asic3_probe(struct platform_device *pdev) asic = devm_kzalloc(&pdev->dev, sizeof(struct asic3), GFP_KERNEL); - if (asic == NULL) { - printk(KERN_ERR "kzalloc failed\n"); + if (!asic) return -ENOMEM; - } spin_lock_init(&asic->lock); platform_set_drvdata(pdev, asic); @@ -1074,7 +1070,9 @@ static struct platform_driver asic3_device_driver = { static int __init asic3_init(void) { int retval = 0; + retval = platform_driver_probe(&asic3_device_driver, asic3_probe); + return retval; } |