Merge tag 'driver-core-3.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git...

[pandora-kernel.git] / drivers / pinctrl / pinctrl-sirf.c

diff --git a/drivers/pinctrl/pinctrl-sirf.c b/drivers/pinctrl/pinctrl-sirf.c
index c776046..498b2ba 100644 (file)
--- a/drivers/pinctrl/pinctrl-sirf.c
+++ b/drivers/pinctrl/pinctrl-sirf.c
@@ -1663,6 +1663,44 @@ const struct irq_domain_ops sirfsoc_gpio_irq_simple_ops = {
        .xlate = irq_domain_xlate_twocell,
 };
 
+static void sirfsoc_gpio_set_pullup(const u32 *pullups)
+{
+       int i, n;
+       const unsigned long *p = (const unsigned long *)pullups;
+
+       for (i = 0; i < SIRFSOC_GPIO_NO_OF_BANKS; i++) {
+               n = find_first_bit(p + i, BITS_PER_LONG);
+               while (n < BITS_PER_LONG) {
+                       u32 offset = SIRFSOC_GPIO_CTRL(i, n);
+                       u32 val = readl(sgpio_bank[i].chip.regs + offset);
+                       val |= SIRFSOC_GPIO_CTL_PULL_MASK;
+                       val |= SIRFSOC_GPIO_CTL_PULL_HIGH;
+                       writel(val, sgpio_bank[i].chip.regs + offset);
+
+                       n = find_next_bit(p + i, BITS_PER_LONG, n + 1);
+               }
+       }
+}
+
+static void sirfsoc_gpio_set_pulldown(const u32 *pulldowns)
+{
+       int i, n;
+       const unsigned long *p = (const unsigned long *)pulldowns;
+
+       for (i = 0; i < SIRFSOC_GPIO_NO_OF_BANKS; i++) {
+               n = find_first_bit(p + i, BITS_PER_LONG);
+               while (n < BITS_PER_LONG) {
+                       u32 offset = SIRFSOC_GPIO_CTRL(i, n);
+                       u32 val = readl(sgpio_bank[i].chip.regs + offset);
+                       val |= SIRFSOC_GPIO_CTL_PULL_MASK;
+                       val &= ~SIRFSOC_GPIO_CTL_PULL_HIGH;
+                       writel(val, sgpio_bank[i].chip.regs + offset);
+
+                       n = find_next_bit(p + i, BITS_PER_LONG, n + 1);
+               }
+       }
+}
+
 static int sirfsoc_gpio_probe(struct device_node *np)
 {
        int i, err = 0;
@@ -1671,6 +1709,8 @@ static int sirfsoc_gpio_probe(struct device_node *np)
        struct platform_device *pdev;
        bool is_marco = false;
 
+       u32 pullups[SIRFSOC_GPIO_NO_OF_BANKS], pulldowns[SIRFSOC_GPIO_NO_OF_BANKS];
+
        pdev = of_find_device_by_node(np);
        if (!pdev)
                return -ENODEV;
@@ -1726,6 +1766,14 @@ static int sirfsoc_gpio_probe(struct device_node *np)
                irq_set_handler_data(bank->parent_irq, bank);
        }
 
+       if (!of_property_read_u32_array(np, "sirf,pullups", pullups,
+               SIRFSOC_GPIO_NO_OF_BANKS))
+               sirfsoc_gpio_set_pullup(pullups);
+
+       if (!of_property_read_u32_array(np, "sirf,pulldowns", pulldowns,
+               SIRFSOC_GPIO_NO_OF_BANKS))
+               sirfsoc_gpio_set_pulldown(pulldowns);
+
        return 0;
 
 out: