diff options
Diffstat (limited to 'drivers/gpio/gpio-aspeed-sgpio.c')
| -rw-r--r-- | drivers/gpio/gpio-aspeed-sgpio.c | 362 |
1 files changed, 224 insertions, 138 deletions
diff --git a/drivers/gpio/gpio-aspeed-sgpio.c b/drivers/gpio/gpio-aspeed-sgpio.c index 7622f9e9f54a..4225261f61c8 100644 --- a/drivers/gpio/gpio-aspeed-sgpio.c +++ b/drivers/gpio/gpio-aspeed-sgpio.c @@ -19,7 +19,31 @@ #include <linux/spinlock.h> #include <linux/string.h> -#define ASPEED_SGPIO_CTRL 0x54 +#define SGPIO_G7_IRQ_STS_BASE 0x40 +#define SGPIO_G7_IRQ_STS_OFFSET(x) (SGPIO_G7_IRQ_STS_BASE + (x) * 0x4) +#define SGPIO_G7_CTRL_REG_BASE 0x80 +#define SGPIO_G7_CTRL_REG_OFFSET(x) (SGPIO_G7_CTRL_REG_BASE + (x) * 0x4) +#define SGPIO_G7_OUT_DATA BIT(0) +#define SGPIO_G7_PARALLEL_OUT_DATA BIT(1) +#define SGPIO_G7_IRQ_EN BIT(2) +#define SGPIO_G7_IRQ_TYPE0 BIT(3) +#define SGPIO_G7_IRQ_TYPE1 BIT(4) +#define SGPIO_G7_IRQ_TYPE2 BIT(5) +#define SGPIO_G7_RST_TOLERANCE BIT(6) +#define SGPIO_G7_INPUT_MASK BIT(9) +#define SGPIO_G7_HW_BYPASS_EN BIT(10) +#define SGPIO_G7_HW_IN_SEL BIT(11) +#define SGPIO_G7_IRQ_STS BIT(12) +#define SGPIO_G7_IN_DATA BIT(13) +#define SGPIO_G7_PARALLEL_IN_DATA BIT(14) +#define SGPIO_G7_SERIAL_OUT_SEL GENMASK(17, 16) +#define SGPIO_G7_PARALLEL_OUT_SEL GENMASK(19, 18) +#define SELECT_FROM_CSR 0 +#define SELECT_FROM_PARALLEL_IN 1 +#define SELECT_FROM_SERIAL_IN 2 + +#define ASPEED_SGPIO_G4_CFG_OFFSET 0x54 +#define ASPEED_SGPIO_G7_CFG_OFFSET 0x0 #define ASPEED_SGPIO_CLK_DIV_MASK GENMASK(31, 16) #define ASPEED_SGPIO_ENABLE BIT(0) @@ -27,6 +51,8 @@ struct aspeed_sgpio_pdata { const u32 pin_mask; + const struct aspeed_sgpio_llops *llops; + const u32 cfg_offset; }; struct aspeed_sgpio { @@ -36,6 +62,7 @@ struct aspeed_sgpio { raw_spinlock_t lock; void __iomem *base; int irq; + const struct aspeed_sgpio_pdata *pdata; }; struct aspeed_sgpio_bank { @@ -43,7 +70,6 @@ struct aspeed_sgpio_bank { u16 rdata_reg; u16 irq_regs; u16 tolerance_regs; - const char names[4][3]; }; /* @@ -59,28 +85,24 @@ static const struct aspeed_sgpio_bank aspeed_sgpio_banks[] = { .rdata_reg = 0x0070, .irq_regs = 0x0004, .tolerance_regs = 0x0018, - .names = { "A", "B", "C", "D" }, }, { .val_regs = 0x001C, .rdata_reg = 0x0074, .irq_regs = 0x0020, .tolerance_regs = 0x0034, - .names = { "E", "F", "G", "H" }, }, { .val_regs = 0x0038, .rdata_reg = 0x0078, .irq_regs = 0x003C, .tolerance_regs = 0x0050, - .names = { "I", "J", "K", "L" }, }, { .val_regs = 0x0090, .rdata_reg = 0x007C, .irq_regs = 0x0094, .tolerance_regs = 0x00A8, - .names = { "M", "N", "O", "P" }, }, }; @@ -95,6 +117,15 @@ enum aspeed_sgpio_reg { reg_tolerance, }; +struct aspeed_sgpio_llops { + void (*reg_bit_set)(struct aspeed_sgpio *gpio, unsigned int offset, + const enum aspeed_sgpio_reg reg, bool val); + bool (*reg_bit_get)(struct aspeed_sgpio *gpio, unsigned int offset, + const enum aspeed_sgpio_reg reg); + int (*reg_bank_get)(struct aspeed_sgpio *gpio, unsigned int offset, + const enum aspeed_sgpio_reg reg); +}; + #define GPIO_VAL_VALUE 0x00 #define GPIO_IRQ_ENABLE 0x00 #define GPIO_IRQ_TYPE0 0x04 @@ -102,9 +133,9 @@ enum aspeed_sgpio_reg { #define GPIO_IRQ_TYPE2 0x0C #define GPIO_IRQ_STATUS 0x10 -static void __iomem *bank_reg(struct aspeed_sgpio *gpio, - const struct aspeed_sgpio_bank *bank, - const enum aspeed_sgpio_reg reg) +static void __iomem *aspeed_sgpio_g4_bank_reg(struct aspeed_sgpio *gpio, + const struct aspeed_sgpio_bank *bank, + const enum aspeed_sgpio_reg reg) { switch (reg) { case reg_val: @@ -129,6 +160,30 @@ static void __iomem *bank_reg(struct aspeed_sgpio *gpio, } } +static u32 aspeed_sgpio_g7_reg_mask(const enum aspeed_sgpio_reg reg) +{ + switch (reg) { + case reg_val: + case reg_rdata: + return SGPIO_G7_OUT_DATA; + case reg_irq_enable: + return SGPIO_G7_IRQ_EN; + case reg_irq_type0: + return SGPIO_G7_IRQ_TYPE0; + case reg_irq_type1: + return SGPIO_G7_IRQ_TYPE1; + case reg_irq_type2: + return SGPIO_G7_IRQ_TYPE2; + case reg_irq_status: + return SGPIO_G7_IRQ_STS; + case reg_tolerance: + return SGPIO_G7_RST_TOLERANCE; + default: + WARN_ON_ONCE(1); + return 0; + } +} + #define GPIO_BANK(x) ((x) >> 6) #define GPIO_OFFSET(x) ((x) & GENMASK(5, 0)) #define GPIO_BIT(x) BIT(GPIO_OFFSET(x) >> 1) @@ -170,14 +225,13 @@ static bool aspeed_sgpio_is_input(unsigned int offset) static int aspeed_sgpio_get(struct gpio_chip *gc, unsigned int offset) { struct aspeed_sgpio *gpio = gpiochip_get_data(gc); - const struct aspeed_sgpio_bank *bank = to_bank(offset); enum aspeed_sgpio_reg reg; int rc = 0; guard(raw_spinlock_irqsave)(&gpio->lock); reg = aspeed_sgpio_is_input(offset) ? reg_val : reg_rdata; - rc = !!(ioread32(bank_reg(gpio, bank, reg)) & GPIO_BIT(offset)); + rc = gpio->pdata->llops->reg_bit_get(gpio, offset, reg); return rc; } @@ -185,26 +239,11 @@ static int aspeed_sgpio_get(struct gpio_chip *gc, unsigned int offset) static int sgpio_set_value(struct gpio_chip *gc, unsigned int offset, int val) { struct aspeed_sgpio *gpio = gpiochip_get_data(gc); - const struct aspeed_sgpio_bank *bank = to_bank(offset); - void __iomem *addr_r, *addr_w; - u32 reg = 0; if (aspeed_sgpio_is_input(offset)) return -EINVAL; - /* Since this is an output, read the cached value from rdata, then - * update val. */ - addr_r = bank_reg(gpio, bank, reg_rdata); - addr_w = bank_reg(gpio, bank, reg_val); - - reg = ioread32(addr_r); - - if (val) - reg |= GPIO_BIT(offset); - else - reg &= ~GPIO_BIT(offset); - - iowrite32(reg, addr_w); + gpio->pdata->llops->reg_bit_set(gpio, offset, reg_val, val); return 0; } @@ -243,69 +282,34 @@ static int aspeed_sgpio_get_direction(struct gpio_chip *gc, unsigned int offset) return !!aspeed_sgpio_is_input(offset); } -static void irqd_to_aspeed_sgpio_data(struct irq_data *d, - struct aspeed_sgpio **gpio, - const struct aspeed_sgpio_bank **bank, - u32 *bit, int *offset) -{ - struct aspeed_sgpio *internal; - - *offset = irqd_to_hwirq(d); - internal = irq_data_get_irq_chip_data(d); - WARN_ON(!internal); - - *gpio = internal; - *bank = to_bank(*offset); - *bit = GPIO_BIT(*offset); -} static void aspeed_sgpio_irq_ack(struct irq_data *d) { - const struct aspeed_sgpio_bank *bank; - struct aspeed_sgpio *gpio; - void __iomem *status_addr; - int offset; - u32 bit; - - irqd_to_aspeed_sgpio_data(d, &gpio, &bank, &bit, &offset); - - status_addr = bank_reg(gpio, bank, reg_irq_status); + struct aspeed_sgpio *gpio = irq_data_get_irq_chip_data(d); + int offset = irqd_to_hwirq(d); guard(raw_spinlock_irqsave)(&gpio->lock); - iowrite32(bit, status_addr); + gpio->pdata->llops->reg_bit_set(gpio, offset, reg_irq_status, 1); } static void aspeed_sgpio_irq_set_mask(struct irq_data *d, bool set) { - const struct aspeed_sgpio_bank *bank; - struct aspeed_sgpio *gpio; - u32 reg, bit; - void __iomem *addr; - int offset; - - irqd_to_aspeed_sgpio_data(d, &gpio, &bank, &bit, &offset); - addr = bank_reg(gpio, bank, reg_irq_enable); + struct aspeed_sgpio *gpio = irq_data_get_irq_chip_data(d); + int offset = irqd_to_hwirq(d); /* Unmasking the IRQ */ if (set) - gpiochip_enable_irq(&gpio->chip, irqd_to_hwirq(d)); - - scoped_guard(raw_spinlock_irqsave, &gpio->lock) { - reg = ioread32(addr); - if (set) - reg |= bit; - else - reg &= ~bit; - - iowrite32(reg, addr); + gpiochip_enable_irq(&gpio->chip, offset); + scoped_guard(raw_spinlock_irqsave, &gpio->lock) + { + gpio->pdata->llops->reg_bit_set(gpio, offset, reg_irq_enable, + set); } /* Masking the IRQ */ if (!set) - gpiochip_disable_irq(&gpio->chip, irqd_to_hwirq(d)); - - + gpiochip_disable_irq(&gpio->chip, offset); } static void aspeed_sgpio_irq_mask(struct irq_data *d) @@ -323,30 +327,25 @@ static int aspeed_sgpio_set_type(struct irq_data *d, unsigned int type) u32 type0 = 0; u32 type1 = 0; u32 type2 = 0; - u32 bit, reg; - const struct aspeed_sgpio_bank *bank; irq_flow_handler_t handler; - struct aspeed_sgpio *gpio; - void __iomem *addr; - int offset; - - irqd_to_aspeed_sgpio_data(d, &gpio, &bank, &bit, &offset); + struct aspeed_sgpio *gpio = irq_data_get_irq_chip_data(d); + int offset = irqd_to_hwirq(d); switch (type & IRQ_TYPE_SENSE_MASK) { case IRQ_TYPE_EDGE_BOTH: - type2 |= bit; + type2 = 1; fallthrough; case IRQ_TYPE_EDGE_RISING: - type0 |= bit; + type0 = 1; fallthrough; case IRQ_TYPE_EDGE_FALLING: handler = handle_edge_irq; break; case IRQ_TYPE_LEVEL_HIGH: - type0 |= bit; + type0 = 1; fallthrough; case IRQ_TYPE_LEVEL_LOW: - type1 |= bit; + type1 = 1; handler = handle_level_irq; break; default: @@ -354,20 +353,9 @@ static int aspeed_sgpio_set_type(struct irq_data *d, unsigned int type) } scoped_guard(raw_spinlock_irqsave, &gpio->lock) { - addr = bank_reg(gpio, bank, reg_irq_type0); - reg = ioread32(addr); - reg = (reg & ~bit) | type0; - iowrite32(reg, addr); - - addr = bank_reg(gpio, bank, reg_irq_type1); - reg = ioread32(addr); - reg = (reg & ~bit) | type1; - iowrite32(reg, addr); - - addr = bank_reg(gpio, bank, reg_irq_type2); - reg = ioread32(addr); - reg = (reg & ~bit) | type2; - iowrite32(reg, addr); + gpio->pdata->llops->reg_bit_set(gpio, offset, reg_irq_type0, type0); + gpio->pdata->llops->reg_bit_set(gpio, offset, reg_irq_type1, type1); + gpio->pdata->llops->reg_bit_set(gpio, offset, reg_irq_type2, type2); } irq_set_handler_locked(d, handler); @@ -380,15 +368,14 @@ static void aspeed_sgpio_irq_handler(struct irq_desc *desc) struct gpio_chip *gc = irq_desc_get_handler_data(desc); struct irq_chip *ic = irq_desc_get_chip(desc); struct aspeed_sgpio *data = gpiochip_get_data(gc); - unsigned int i, p; + unsigned int i, p, banks; unsigned long reg; chained_irq_enter(ic, desc); - for (i = 0; i < ARRAY_SIZE(aspeed_sgpio_banks); i++) { - const struct aspeed_sgpio_bank *bank = &aspeed_sgpio_banks[i]; - - reg = ioread32(bank_reg(data, bank, reg_irq_status)); + banks = DIV_ROUND_UP(gc->ngpio, 64); + for (i = 0; i < banks; i++) { + reg = data->pdata->llops->reg_bank_get(data, i << 6, reg_irq_status); for_each_set_bit(p, ®, 32) generic_handle_domain_irq(gc->irq.domain, (i * 32 + p) * 2); @@ -399,12 +386,8 @@ static void aspeed_sgpio_irq_handler(struct irq_desc *desc) static void aspeed_sgpio_irq_print_chip(struct irq_data *d, struct seq_file *p) { - const struct aspeed_sgpio_bank *bank; - struct aspeed_sgpio *gpio; - u32 bit; - int offset; + struct aspeed_sgpio *gpio = irq_data_get_irq_chip_data(d); - irqd_to_aspeed_sgpio_data(d, &gpio, &bank, &bit, &offset); seq_puts(p, dev_name(gpio->dev)); } @@ -422,7 +405,6 @@ static int aspeed_sgpio_setup_irqs(struct aspeed_sgpio *gpio, struct platform_device *pdev) { int rc, i; - const struct aspeed_sgpio_bank *bank; struct gpio_irq_chip *irq; rc = platform_get_irq(pdev, 0); @@ -432,12 +414,11 @@ static int aspeed_sgpio_setup_irqs(struct aspeed_sgpio *gpio, gpio->irq = rc; /* Disable IRQ and clear Interrupt status registers for all SGPIO Pins. */ - for (i = 0; i < ARRAY_SIZE(aspeed_sgpio_banks); i++) { - bank = &aspeed_sgpio_banks[i]; + for (i = 0; i < gpio->chip.ngpio; i += 2) { /* disable irq enable bits */ - iowrite32(0x00000000, bank_reg(gpio, bank, reg_irq_enable)); + gpio->pdata->llops->reg_bit_set(gpio, i, reg_irq_enable, 0); /* clear status bits */ - iowrite32(0xffffffff, bank_reg(gpio, bank, reg_irq_status)); + gpio->pdata->llops->reg_bit_set(gpio, i, reg_irq_status, 1); } irq = &gpio->chip.irq; @@ -451,42 +432,91 @@ static int aspeed_sgpio_setup_irqs(struct aspeed_sgpio *gpio, irq->num_parents = 1; /* Apply default IRQ settings */ - for (i = 0; i < ARRAY_SIZE(aspeed_sgpio_banks); i++) { - bank = &aspeed_sgpio_banks[i]; + for (i = 0; i < gpio->chip.ngpio; i += 2) { /* set falling or level-low irq */ - iowrite32(0x00000000, bank_reg(gpio, bank, reg_irq_type0)); + gpio->pdata->llops->reg_bit_set(gpio, i, reg_irq_type0, 0); /* trigger type is edge */ - iowrite32(0x00000000, bank_reg(gpio, bank, reg_irq_type1)); + gpio->pdata->llops->reg_bit_set(gpio, i, reg_irq_type1, 0); /* single edge trigger */ - iowrite32(0x00000000, bank_reg(gpio, bank, reg_irq_type2)); + gpio->pdata->llops->reg_bit_set(gpio, i, reg_irq_type2, 0); } return 0; } +static void aspeed_sgpio_g4_reg_bit_set(struct aspeed_sgpio *gpio, unsigned int offset, + const enum aspeed_sgpio_reg reg, bool val) +{ + const struct aspeed_sgpio_bank *bank = to_bank(offset); + void __iomem *addr = aspeed_sgpio_g4_bank_reg(gpio, bank, reg); + u32 temp; + + if (reg == reg_val) { + /* Since this is an output, read the cached value from rdata, then update val. */ + addr = aspeed_sgpio_g4_bank_reg(gpio, bank, reg_rdata); + temp = ioread32(addr); + if (val) + temp |= GPIO_BIT(offset); + else + temp &= ~GPIO_BIT(offset); + + addr = aspeed_sgpio_g4_bank_reg(gpio, bank, reg_val); + iowrite32(temp, addr); + } else if (reg == reg_irq_status) { + if (val) + iowrite32(GPIO_BIT(offset), addr); + } else { + /* When setting other registers, we read from the register itself */ + temp = ioread32(addr); + if (val) + temp |= GPIO_BIT(offset); + else + temp &= ~GPIO_BIT(offset); + iowrite32(temp, addr); + } +} + +static bool aspeed_sgpio_g4_reg_bit_get(struct aspeed_sgpio *gpio, unsigned int offset, + const enum aspeed_sgpio_reg reg) +{ + const struct aspeed_sgpio_bank *bank = to_bank(offset); + void __iomem *addr = aspeed_sgpio_g4_bank_reg(gpio, bank, reg); + + return !!(ioread32(addr) & GPIO_BIT(offset)); +} + +static int aspeed_sgpio_g4_reg_bank_get(struct aspeed_sgpio *gpio, unsigned int offset, + const enum aspeed_sgpio_reg reg) +{ + const struct aspeed_sgpio_bank *bank = to_bank(offset); + void __iomem *addr = aspeed_sgpio_g4_bank_reg(gpio, bank, reg); + + if (reg == reg_irq_status) + return ioread32(addr); + else + return -EOPNOTSUPP; +} + +static const struct aspeed_sgpio_llops aspeed_sgpio_g4_llops = { + .reg_bit_set = aspeed_sgpio_g4_reg_bit_set, + .reg_bit_get = aspeed_sgpio_g4_reg_bit_get, + .reg_bank_get = aspeed_sgpio_g4_reg_bank_get, +}; + static const struct aspeed_sgpio_pdata ast2400_sgpio_pdata = { .pin_mask = GENMASK(9, 6), + .llops = &aspeed_sgpio_g4_llops, + .cfg_offset = ASPEED_SGPIO_G4_CFG_OFFSET, }; static int aspeed_sgpio_reset_tolerance(struct gpio_chip *chip, unsigned int offset, bool enable) { struct aspeed_sgpio *gpio = gpiochip_get_data(chip); - void __iomem *reg; - u32 val; - - reg = bank_reg(gpio, to_bank(offset), reg_tolerance); guard(raw_spinlock_irqsave)(&gpio->lock); - val = readl(reg); - - if (enable) - val |= GPIO_BIT(offset); - else - val &= ~GPIO_BIT(offset); - - writel(val, reg); + gpio->pdata->llops->reg_bit_set(gpio, offset, reg_tolerance, enable); return 0; } @@ -505,21 +535,77 @@ static int aspeed_sgpio_set_config(struct gpio_chip *chip, unsigned int offset, static const struct aspeed_sgpio_pdata ast2600_sgpiom_pdata = { .pin_mask = GENMASK(10, 6), + .llops = &aspeed_sgpio_g4_llops, + .cfg_offset = ASPEED_SGPIO_G4_CFG_OFFSET, +}; + +static void aspeed_sgpio_g7_reg_bit_set(struct aspeed_sgpio *gpio, unsigned int offset, + const enum aspeed_sgpio_reg reg, bool val) +{ + u32 mask = aspeed_sgpio_g7_reg_mask(reg); + void __iomem *addr = gpio->base + SGPIO_G7_CTRL_REG_OFFSET(offset >> 1); + u32 write_val; + + if (mask) { + write_val = (ioread32(addr) & ~(mask)) | field_prep(mask, val); + iowrite32(write_val, addr); + } +} + +static bool aspeed_sgpio_g7_reg_bit_get(struct aspeed_sgpio *gpio, unsigned int offset, + const enum aspeed_sgpio_reg reg) +{ + u32 mask = aspeed_sgpio_g7_reg_mask(reg); + void __iomem *addr; + + addr = gpio->base + SGPIO_G7_CTRL_REG_OFFSET(offset >> 1); + if (reg == reg_val) + mask = SGPIO_G7_IN_DATA; + + if (mask) + return field_get(mask, ioread32(addr)); + else + return 0; +} + +static int aspeed_sgpio_g7_reg_bank_get(struct aspeed_sgpio *gpio, unsigned int offset, + const enum aspeed_sgpio_reg reg) +{ + void __iomem *addr; + + if (reg == reg_irq_status) { + addr = gpio->base + SGPIO_G7_IRQ_STS_OFFSET(offset >> 6); + return ioread32(addr); + } else { + return -EOPNOTSUPP; + } +} + +static const struct aspeed_sgpio_llops aspeed_sgpio_g7_llops = { + .reg_bit_set = aspeed_sgpio_g7_reg_bit_set, + .reg_bit_get = aspeed_sgpio_g7_reg_bit_get, + .reg_bank_get = aspeed_sgpio_g7_reg_bank_get, +}; + +static const struct aspeed_sgpio_pdata ast2700_sgpiom_pdata = { + .pin_mask = GENMASK(11, 6), + .llops = &aspeed_sgpio_g7_llops, + .cfg_offset = ASPEED_SGPIO_G7_CFG_OFFSET, }; static const struct of_device_id aspeed_sgpio_of_table[] = { { .compatible = "aspeed,ast2400-sgpio", .data = &ast2400_sgpio_pdata, }, { .compatible = "aspeed,ast2500-sgpio", .data = &ast2400_sgpio_pdata, }, { .compatible = "aspeed,ast2600-sgpiom", .data = &ast2600_sgpiom_pdata, }, + { .compatible = "aspeed,ast2700-sgpiom", .data = &ast2700_sgpiom_pdata, }, {} }; MODULE_DEVICE_TABLE(of, aspeed_sgpio_of_table); -static int __init aspeed_sgpio_probe(struct platform_device *pdev) +static int aspeed_sgpio_probe(struct platform_device *pdev) { u32 nr_gpios, sgpio_freq, sgpio_clk_div, gpio_cnt_regval, pin_mask; - const struct aspeed_sgpio_pdata *pdata; struct aspeed_sgpio *gpio; unsigned long apb_freq; int rc; @@ -534,12 +620,11 @@ static int __init aspeed_sgpio_probe(struct platform_device *pdev) gpio->dev = &pdev->dev; - pdata = device_get_match_data(&pdev->dev); - if (!pdata) + gpio->pdata = device_get_match_data(&pdev->dev); + if (!gpio->pdata) return -EINVAL; - pin_mask = pdata->pin_mask; - + pin_mask = gpio->pdata->pin_mask; rc = device_property_read_u32(&pdev->dev, "ngpios", &nr_gpios); if (rc < 0) { dev_err(&pdev->dev, "Could not read ngpios property\n"); @@ -583,7 +668,7 @@ static int __init aspeed_sgpio_probe(struct platform_device *pdev) gpio_cnt_regval = ((nr_gpios / 8) << ASPEED_SGPIO_PINS_SHIFT) & pin_mask; iowrite32(FIELD_PREP(ASPEED_SGPIO_CLK_DIV_MASK, sgpio_clk_div) | gpio_cnt_regval | - ASPEED_SGPIO_ENABLE, gpio->base + ASPEED_SGPIO_CTRL); + ASPEED_SGPIO_ENABLE, gpio->base + gpio->pdata->cfg_offset); raw_spin_lock_init(&gpio->lock); @@ -611,11 +696,12 @@ static int __init aspeed_sgpio_probe(struct platform_device *pdev) } static struct platform_driver aspeed_sgpio_driver = { + .probe = aspeed_sgpio_probe, .driver = { .name = KBUILD_MODNAME, .of_match_table = aspeed_sgpio_of_table, }, }; -module_platform_driver_probe(aspeed_sgpio_driver, aspeed_sgpio_probe); +module_platform_driver(aspeed_sgpio_driver); MODULE_DESCRIPTION("Aspeed Serial GPIO Driver"); |