diff options
Diffstat (limited to 'drivers/pinctrl/nomadik')
| -rw-r--r-- | drivers/pinctrl/nomadik/pinctrl-nomadik-db8500.c | 12 | ||||
| -rw-r--r-- | drivers/pinctrl/nomadik/pinctrl-nomadik.c | 81 |
2 files changed, 33 insertions, 60 deletions
diff --git a/drivers/pinctrl/nomadik/pinctrl-nomadik-db8500.c b/drivers/pinctrl/nomadik/pinctrl-nomadik-db8500.c index 726c0b5501fa..b9246e0b4fe2 100644 --- a/drivers/pinctrl/nomadik/pinctrl-nomadik-db8500.c +++ b/drivers/pinctrl/nomadik/pinctrl-nomadik-db8500.c @@ -391,6 +391,15 @@ static const unsigned mc0_a_1_pins[] = { DB8500_PIN_AC2, /* MC0_CMDDIR */ DB8500_PIN_AA2, /* MC0_DAT2 */ DB8500_PIN_AA1 /* MC0_DAT3 */ }; +/* MMC/SD card 0 interface without CMD/DAT0/DAT2 direction control */ +static const unsigned mc0_a_2_pins[] = { DB8500_PIN_AA3, /* MC0_FBCLK */ + DB8500_PIN_AA4, /* MC0_CLK */ + DB8500_PIN_AB2, /* MC0_CMD */ + DB8500_PIN_Y4, /* MC0_DAT0 */ + DB8500_PIN_Y2, /* MC0_DAT1 */ + DB8500_PIN_AA2, /* MC0_DAT2 */ + DB8500_PIN_AA1 /* MC0_DAT3 */ +}; /* Often only 4 bits are used, then these are not needed (only used for MMC) */ static const unsigned mc0_dat47_a_1_pins[] = { DB8500_PIN_W2, /* MC0_DAT4 */ DB8500_PIN_W3, /* MC0_DAT5 */ @@ -670,6 +679,7 @@ static const struct nmk_pingroup nmk_db8500_groups[] = { DB8500_PIN_GROUP(msp0tfstck_a_1, NMK_GPIO_ALT_A), DB8500_PIN_GROUP(msp0rfsrck_a_1, NMK_GPIO_ALT_A), DB8500_PIN_GROUP(mc0_a_1, NMK_GPIO_ALT_A), + DB8500_PIN_GROUP(mc0_a_2, NMK_GPIO_ALT_A), DB8500_PIN_GROUP(mc0_dat47_a_1, NMK_GPIO_ALT_A), DB8500_PIN_GROUP(mc0dat31dir_a_1, NMK_GPIO_ALT_A), DB8500_PIN_GROUP(msp1txrx_a_1, NMK_GPIO_ALT_A), @@ -828,7 +838,7 @@ DB8500_FUNC_GROUPS(ipi2c, "ipi2c_a_1", "ipi2c_a_2"); */ DB8500_FUNC_GROUPS(msp0, "msp0txrx_a_1", "msp0tfstck_a_1", "msp0rfstck_a_1", "msp0txrx_b_1", "msp0sck_b_1"); -DB8500_FUNC_GROUPS(mc0, "mc0_a_1", "mc0_dat47_a_1", "mc0dat31dir_a_1"); +DB8500_FUNC_GROUPS(mc0, "mc0_a_1", "mc0_a_2", "mc0_dat47_a_1", "mc0dat31dir_a_1"); /* MSP0 can swap RX/TX like MSP0 but has no SCK pin available */ DB8500_FUNC_GROUPS(msp1, "msp1txrx_a_1", "msp1_a_1", "msp1txrx_b_1"); DB8500_FUNC_GROUPS(lcdb, "lcdb_a_1"); diff --git a/drivers/pinctrl/nomadik/pinctrl-nomadik.c b/drivers/pinctrl/nomadik/pinctrl-nomadik.c index 2a8190b11d10..95f864dfdef4 100644 --- a/drivers/pinctrl/nomadik/pinctrl-nomadik.c +++ b/drivers/pinctrl/nomadik/pinctrl-nomadik.c @@ -248,9 +248,6 @@ struct nmk_gpio_chip { void __iomem *addr; struct clk *clk; unsigned int bank; - unsigned int parent_irq; - int latent_parent_irq; - u32 (*get_latent_status)(unsigned int bank); void (*set_ioforce)(bool enable); spinlock_t lock; bool sleepmode; @@ -802,13 +799,19 @@ static void nmk_gpio_irq_shutdown(struct irq_data *d) clk_disable(nmk_chip->clk); } -static void __nmk_gpio_irq_handler(struct irq_desc *desc, u32 status) +static void nmk_gpio_irq_handler(struct irq_desc *desc) { struct irq_chip *host_chip = irq_desc_get_chip(desc); struct gpio_chip *chip = irq_desc_get_handler_data(desc); + struct nmk_gpio_chip *nmk_chip = gpiochip_get_data(chip); + u32 status; chained_irq_enter(host_chip, desc); + clk_enable(nmk_chip->clk); + status = readl(nmk_chip->addr + NMK_GPIO_IS); + clk_disable(nmk_chip->clk); + while (status) { int bit = __ffs(status); @@ -819,28 +822,6 @@ static void __nmk_gpio_irq_handler(struct irq_desc *desc, u32 status) chained_irq_exit(host_chip, desc); } -static void nmk_gpio_irq_handler(struct irq_desc *desc) -{ - struct gpio_chip *chip = irq_desc_get_handler_data(desc); - struct nmk_gpio_chip *nmk_chip = gpiochip_get_data(chip); - u32 status; - - clk_enable(nmk_chip->clk); - status = readl(nmk_chip->addr + NMK_GPIO_IS); - clk_disable(nmk_chip->clk); - - __nmk_gpio_irq_handler(desc, status); -} - -static void nmk_gpio_latent_irq_handler(struct irq_desc *desc) -{ - struct gpio_chip *chip = irq_desc_get_handler_data(desc); - struct nmk_gpio_chip *nmk_chip = gpiochip_get_data(chip); - u32 status = nmk_chip->get_latent_status(nmk_chip->bank); - - __nmk_gpio_irq_handler(desc, status); -} - /* I/O Functions */ static int nmk_gpio_get_dir(struct gpio_chip *chip, unsigned offset) @@ -1103,8 +1084,8 @@ static int nmk_gpio_probe(struct platform_device *dev) struct device_node *np = dev->dev.of_node; struct nmk_gpio_chip *nmk_chip; struct gpio_chip *chip; + struct gpio_irq_chip *girq; struct irq_chip *irqchip; - int latent_irq; bool supports_sleepmode; int irq; int ret; @@ -1125,15 +1106,10 @@ static int nmk_gpio_probe(struct platform_device *dev) if (irq < 0) return irq; - /* It's OK for this IRQ not to be present */ - latent_irq = platform_get_irq(dev, 1); - /* * The virt address in nmk_chip->addr is in the nomadik register space, * so we can simply convert the resource address, without remapping */ - nmk_chip->parent_irq = irq; - nmk_chip->latent_parent_irq = latent_irq; nmk_chip->sleepmode = supports_sleepmode; spin_lock_init(&nmk_chip->lock); @@ -1163,6 +1139,19 @@ static int nmk_gpio_probe(struct platform_device *dev) chip->base, chip->base + chip->ngpio - 1); + girq = &chip->irq; + girq->chip = irqchip; + girq->parent_handler = nmk_gpio_irq_handler; + girq->num_parents = 1; + girq->parents = devm_kcalloc(&dev->dev, 1, + sizeof(*girq->parents), + GFP_KERNEL); + if (!girq->parents) + return -ENOMEM; + girq->parents[0] = irq; + girq->default_type = IRQ_TYPE_NONE; + girq->handler = handle_edge_irq; + clk_enable(nmk_chip->clk); nmk_chip->lowemi = readl_relaxed(nmk_chip->addr + NMK_GPIO_LOWEMI); clk_disable(nmk_chip->clk); @@ -1174,33 +1163,7 @@ static int nmk_gpio_probe(struct platform_device *dev) platform_set_drvdata(dev, nmk_chip); - /* - * Let the generic code handle this edge IRQ, the the chained - * handler will perform the actual work of handling the parent - * interrupt. - */ - ret = gpiochip_irqchip_add(chip, - irqchip, - 0, - handle_edge_irq, - IRQ_TYPE_NONE); - if (ret) { - dev_err(&dev->dev, "could not add irqchip\n"); - gpiochip_remove(&nmk_chip->chip); - return -ENODEV; - } - /* Then register the chain on the parent IRQ */ - gpiochip_set_chained_irqchip(chip, - irqchip, - nmk_chip->parent_irq, - nmk_gpio_irq_handler); - if (nmk_chip->latent_parent_irq > 0) - gpiochip_set_chained_irqchip(chip, - irqchip, - nmk_chip->latent_parent_irq, - nmk_gpio_latent_irq_handler); - - dev_info(&dev->dev, "at address %p\n", nmk_chip->addr); + dev_info(&dev->dev, "chip registered\n"); return 0; } |