aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/sh
diff options
context:
space:
mode:
authorRussell King <rmk+kernel@arm.linux.org.uk>2010-03-08 20:21:04 +0000
committerRussell King <rmk+kernel@arm.linux.org.uk>2010-03-08 20:21:04 +0000
commit988addf82e4c03739375279de73929580a2d4a6a (patch)
tree989ae1cd4e264bbad80c65f04480486246e7b9f3 /drivers/sh
parent004c1c7096659d352b83047a7593e91d8a30e3c5 (diff)
parent25cf84cf377c0aae5dbcf937ea89bc7893db5176 (diff)
downloadkernel_samsung_smdk4412-988addf82e4c03739375279de73929580a2d4a6a.zip
kernel_samsung_smdk4412-988addf82e4c03739375279de73929580a2d4a6a.tar.gz
kernel_samsung_smdk4412-988addf82e4c03739375279de73929580a2d4a6a.tar.bz2
Merge branch 'origin' into devel-stable
Conflicts: arch/arm/mach-mx2/devices.c arch/arm/mach-mx2/devices.h sound/soc/pxa/pxa-ssp.c
Diffstat (limited to 'drivers/sh')
-rw-r--r--drivers/sh/intc.c266
-rw-r--r--drivers/sh/pfc.c37
2 files changed, 226 insertions, 77 deletions
diff --git a/drivers/sh/intc.c b/drivers/sh/intc.c
index 926013b..c275039 100644
--- a/drivers/sh/intc.c
+++ b/drivers/sh/intc.c
@@ -259,6 +259,43 @@ static void intc_disable(unsigned int irq)
}
}
+static void (*intc_enable_noprio_fns[])(unsigned long addr,
+ unsigned long handle,
+ void (*fn)(unsigned long,
+ unsigned long,
+ unsigned long),
+ unsigned int irq) = {
+ [MODE_ENABLE_REG] = intc_mode_field,
+ [MODE_MASK_REG] = intc_mode_zero,
+ [MODE_DUAL_REG] = intc_mode_field,
+ [MODE_PRIO_REG] = intc_mode_field,
+ [MODE_PCLR_REG] = intc_mode_field,
+};
+
+static void intc_enable_disable(struct intc_desc_int *d,
+ unsigned long handle, int do_enable)
+{
+ unsigned long addr;
+ unsigned int cpu;
+ void (*fn)(unsigned long, unsigned long,
+ void (*)(unsigned long, unsigned long, unsigned long),
+ unsigned int);
+
+ if (do_enable) {
+ for (cpu = 0; cpu < SMP_NR(d, _INTC_ADDR_E(handle)); cpu++) {
+ addr = INTC_REG(d, _INTC_ADDR_E(handle), cpu);
+ fn = intc_enable_noprio_fns[_INTC_MODE(handle)];
+ fn(addr, handle, intc_reg_fns[_INTC_FN(handle)], 0);
+ }
+ } else {
+ for (cpu = 0; cpu < SMP_NR(d, _INTC_ADDR_D(handle)); cpu++) {
+ addr = INTC_REG(d, _INTC_ADDR_D(handle), cpu);
+ fn = intc_disable_fns[_INTC_MODE(handle)];
+ fn(addr, handle, intc_reg_fns[_INTC_FN(handle)], 0);
+ }
+ }
+}
+
static int intc_set_wake(unsigned int irq, unsigned int on)
{
return 0; /* allow wakeup, but setup hardware in intc_suspend() */
@@ -400,11 +437,11 @@ static unsigned int __init intc_get_reg(struct intc_desc_int *d,
static intc_enum __init intc_grp_id(struct intc_desc *desc,
intc_enum enum_id)
{
- struct intc_group *g = desc->groups;
+ struct intc_group *g = desc->hw.groups;
unsigned int i, j;
- for (i = 0; g && enum_id && i < desc->nr_groups; i++) {
- g = desc->groups + i;
+ for (i = 0; g && enum_id && i < desc->hw.nr_groups; i++) {
+ g = desc->hw.groups + i;
for (j = 0; g->enum_ids[j]; j++) {
if (g->enum_ids[j] != enum_id)
@@ -417,19 +454,21 @@ static intc_enum __init intc_grp_id(struct intc_desc *desc,
return 0;
}
-static unsigned int __init intc_mask_data(struct intc_desc *desc,
- struct intc_desc_int *d,
- intc_enum enum_id, int do_grps)
+static unsigned int __init _intc_mask_data(struct intc_desc *desc,
+ struct intc_desc_int *d,
+ intc_enum enum_id,
+ unsigned int *reg_idx,
+ unsigned int *fld_idx)
{
- struct intc_mask_reg *mr = desc->mask_regs;
- unsigned int i, j, fn, mode;
+ struct intc_mask_reg *mr = desc->hw.mask_regs;
+ unsigned int fn, mode;
unsigned long reg_e, reg_d;
- for (i = 0; mr && enum_id && i < desc->nr_mask_regs; i++) {
- mr = desc->mask_regs + i;
+ while (mr && enum_id && *reg_idx < desc->hw.nr_mask_regs) {
+ mr = desc->hw.mask_regs + *reg_idx;
- for (j = 0; j < ARRAY_SIZE(mr->enum_ids); j++) {
- if (mr->enum_ids[j] != enum_id)
+ for (; *fld_idx < ARRAY_SIZE(mr->enum_ids); (*fld_idx)++) {
+ if (mr->enum_ids[*fld_idx] != enum_id)
continue;
if (mr->set_reg && mr->clr_reg) {
@@ -455,29 +494,49 @@ static unsigned int __init intc_mask_data(struct intc_desc *desc,
intc_get_reg(d, reg_e),
intc_get_reg(d, reg_d),
1,
- (mr->reg_width - 1) - j);
+ (mr->reg_width - 1) - *fld_idx);
}
+
+ *fld_idx = 0;
+ (*reg_idx)++;
}
+ return 0;
+}
+
+static unsigned int __init intc_mask_data(struct intc_desc *desc,
+ struct intc_desc_int *d,
+ intc_enum enum_id, int do_grps)
+{
+ unsigned int i = 0;
+ unsigned int j = 0;
+ unsigned int ret;
+
+ ret = _intc_mask_data(desc, d, enum_id, &i, &j);
+ if (ret)
+ return ret;
+
if (do_grps)
return intc_mask_data(desc, d, intc_grp_id(desc, enum_id), 0);
return 0;
}
-static unsigned int __init intc_prio_data(struct intc_desc *desc,
- struct intc_desc_int *d,
- intc_enum enum_id, int do_grps)
+static unsigned int __init _intc_prio_data(struct intc_desc *desc,
+ struct intc_desc_int *d,
+ intc_enum enum_id,
+ unsigned int *reg_idx,
+ unsigned int *fld_idx)
{
- struct intc_prio_reg *pr = desc->prio_regs;
- unsigned int i, j, fn, mode, bit;
+ struct intc_prio_reg *pr = desc->hw.prio_regs;
+ unsigned int fn, n, mode, bit;
unsigned long reg_e, reg_d;
- for (i = 0; pr && enum_id && i < desc->nr_prio_regs; i++) {
- pr = desc->prio_regs + i;
+ while (pr && enum_id && *reg_idx < desc->hw.nr_prio_regs) {
+ pr = desc->hw.prio_regs + *reg_idx;
- for (j = 0; j < ARRAY_SIZE(pr->enum_ids); j++) {
- if (pr->enum_ids[j] != enum_id)
+ for (; *fld_idx < ARRAY_SIZE(pr->enum_ids); (*fld_idx)++) {
+ if (pr->enum_ids[*fld_idx] != enum_id)
continue;
if (pr->set_reg && pr->clr_reg) {
@@ -495,34 +554,79 @@ static unsigned int __init intc_prio_data(struct intc_desc *desc,
}
fn += (pr->reg_width >> 3) - 1;
+ n = *fld_idx + 1;
- BUG_ON((j + 1) * pr->field_width > pr->reg_width);
+ BUG_ON(n * pr->field_width > pr->reg_width);
- bit = pr->reg_width - ((j + 1) * pr->field_width);
+ bit = pr->reg_width - (n * pr->field_width);
return _INTC_MK(fn, mode,
intc_get_reg(d, reg_e),
intc_get_reg(d, reg_d),
pr->field_width, bit);
}
+
+ *fld_idx = 0;
+ (*reg_idx)++;
}
+ return 0;
+}
+
+static unsigned int __init intc_prio_data(struct intc_desc *desc,
+ struct intc_desc_int *d,
+ intc_enum enum_id, int do_grps)
+{
+ unsigned int i = 0;
+ unsigned int j = 0;
+ unsigned int ret;
+
+ ret = _intc_prio_data(desc, d, enum_id, &i, &j);
+ if (ret)
+ return ret;
+
if (do_grps)
return intc_prio_data(desc, d, intc_grp_id(desc, enum_id), 0);
return 0;
}
+static void __init intc_enable_disable_enum(struct intc_desc *desc,
+ struct intc_desc_int *d,
+ intc_enum enum_id, int enable)
+{
+ unsigned int i, j, data;
+
+ /* go through and enable/disable all mask bits */
+ i = j = 0;
+ do {
+ data = _intc_mask_data(desc, d, enum_id, &i, &j);
+ if (data)
+ intc_enable_disable(d, data, enable);
+ j++;
+ } while (data);
+
+ /* go through and enable/disable all priority fields */
+ i = j = 0;
+ do {
+ data = _intc_prio_data(desc, d, enum_id, &i, &j);
+ if (data)
+ intc_enable_disable(d, data, enable);
+
+ j++;
+ } while (data);
+}
+
static unsigned int __init intc_ack_data(struct intc_desc *desc,
struct intc_desc_int *d,
intc_enum enum_id)
{
- struct intc_mask_reg *mr = desc->ack_regs;
+ struct intc_mask_reg *mr = desc->hw.ack_regs;
unsigned int i, j, fn, mode;
unsigned long reg_e, reg_d;
- for (i = 0; mr && enum_id && i < desc->nr_ack_regs; i++) {
- mr = desc->ack_regs + i;
+ for (i = 0; mr && enum_id && i < desc->hw.nr_ack_regs; i++) {
+ mr = desc->hw.ack_regs + i;
for (j = 0; j < ARRAY_SIZE(mr->enum_ids); j++) {
if (mr->enum_ids[j] != enum_id)
@@ -549,11 +653,11 @@ static unsigned int __init intc_sense_data(struct intc_desc *desc,
struct intc_desc_int *d,
intc_enum enum_id)
{
- struct intc_sense_reg *sr = desc->sense_regs;
+ struct intc_sense_reg *sr = desc->hw.sense_regs;
unsigned int i, j, fn, bit;
- for (i = 0; sr && enum_id && i < desc->nr_sense_regs; i++) {
- sr = desc->sense_regs + i;
+ for (i = 0; sr && enum_id && i < desc->hw.nr_sense_regs; i++) {
+ sr = desc->hw.sense_regs + i;
for (j = 0; j < ARRAY_SIZE(sr->enum_ids); j++) {
if (sr->enum_ids[j] != enum_id)
@@ -656,7 +760,7 @@ static void __init intc_register_irq(struct intc_desc *desc,
/* irq should be disabled by default */
d->chip.mask(irq);
- if (desc->ack_regs)
+ if (desc->hw.ack_regs)
ack_handle[irq] = intc_ack_data(desc, d, enum_id);
#ifdef CONFIG_ARM
@@ -688,6 +792,7 @@ static void intc_redirect_irq(unsigned int irq, struct irq_desc *desc)
void __init register_intc_controller(struct intc_desc *desc)
{
unsigned int i, k, smp;
+ struct intc_hw_desc *hw = &desc->hw;
struct intc_desc_int *d;
d = kzalloc(sizeof(*d), GFP_NOWAIT);
@@ -695,10 +800,10 @@ void __init register_intc_controller(struct intc_desc *desc)
INIT_LIST_HEAD(&d->list);
list_add(&d->list, &intc_list);
- d->nr_reg = desc->mask_regs ? desc->nr_mask_regs * 2 : 0;
- d->nr_reg += desc->prio_regs ? desc->nr_prio_regs * 2 : 0;
- d->nr_reg += desc->sense_regs ? desc->nr_sense_regs : 0;
- d->nr_reg += desc->ack_regs ? desc->nr_ack_regs : 0;
+ d->nr_reg = hw->mask_regs ? hw->nr_mask_regs * 2 : 0;
+ d->nr_reg += hw->prio_regs ? hw->nr_prio_regs * 2 : 0;
+ d->nr_reg += hw->sense_regs ? hw->nr_sense_regs : 0;
+ d->nr_reg += hw->ack_regs ? hw->nr_ack_regs : 0;
d->reg = kzalloc(d->nr_reg * sizeof(*d->reg), GFP_NOWAIT);
#ifdef CONFIG_SMP
@@ -706,30 +811,31 @@ void __init register_intc_controller(struct intc_desc *desc)
#endif
k = 0;
- if (desc->mask_regs) {
- for (i = 0; i < desc->nr_mask_regs; i++) {
- smp = IS_SMP(desc->mask_regs[i]);
- k += save_reg(d, k, desc->mask_regs[i].set_reg, smp);
- k += save_reg(d, k, desc->mask_regs[i].clr_reg, smp);
+ if (hw->mask_regs) {
+ for (i = 0; i < hw->nr_mask_regs; i++) {
+ smp = IS_SMP(hw->mask_regs[i]);
+ k += save_reg(d, k, hw->mask_regs[i].set_reg, smp);
+ k += save_reg(d, k, hw->mask_regs[i].clr_reg, smp);
}
}
- if (desc->prio_regs) {
- d->prio = kzalloc(desc->nr_vectors * sizeof(*d->prio), GFP_NOWAIT);
+ if (hw->prio_regs) {
+ d->prio = kzalloc(hw->nr_vectors * sizeof(*d->prio),
+ GFP_NOWAIT);
- for (i = 0; i < desc->nr_prio_regs; i++) {
- smp = IS_SMP(desc->prio_regs[i]);
- k += save_reg(d, k, desc->prio_regs[i].set_reg, smp);
- k += save_reg(d, k, desc->prio_regs[i].clr_reg, smp);
+ for (i = 0; i < hw->nr_prio_regs; i++) {
+ smp = IS_SMP(hw->prio_regs[i]);
+ k += save_reg(d, k, hw->prio_regs[i].set_reg, smp);
+ k += save_reg(d, k, hw->prio_regs[i].clr_reg, smp);
}
}
- if (desc->sense_regs) {
- d->sense = kzalloc(desc->nr_vectors * sizeof(*d->sense), GFP_NOWAIT);
+ if (hw->sense_regs) {
+ d->sense = kzalloc(hw->nr_vectors * sizeof(*d->sense),
+ GFP_NOWAIT);
- for (i = 0; i < desc->nr_sense_regs; i++) {
- k += save_reg(d, k, desc->sense_regs[i].reg, 0);
- }
+ for (i = 0; i < hw->nr_sense_regs; i++)
+ k += save_reg(d, k, hw->sense_regs[i].reg, 0);
}
d->chip.name = desc->name;
@@ -742,18 +848,26 @@ void __init register_intc_controller(struct intc_desc *desc)
d->chip.set_type = intc_set_sense;
d->chip.set_wake = intc_set_wake;
- if (desc->ack_regs) {
- for (i = 0; i < desc->nr_ack_regs; i++)
- k += save_reg(d, k, desc->ack_regs[i].set_reg, 0);
+ if (hw->ack_regs) {
+ for (i = 0; i < hw->nr_ack_regs; i++)
+ k += save_reg(d, k, hw->ack_regs[i].set_reg, 0);
d->chip.mask_ack = intc_mask_ack;
}
+ /* disable bits matching force_disable before registering irqs */
+ if (desc->force_disable)
+ intc_enable_disable_enum(desc, d, desc->force_disable, 0);
+
+ /* disable bits matching force_enable before registering irqs */
+ if (desc->force_enable)
+ intc_enable_disable_enum(desc, d, desc->force_enable, 0);
+
BUG_ON(k > 256); /* _INTC_ADDR_E() and _INTC_ADDR_D() are 8 bits */
/* register the vectors one by one */
- for (i = 0; i < desc->nr_vectors; i++) {
- struct intc_vect *vect = desc->vectors + i;
+ for (i = 0; i < hw->nr_vectors; i++) {
+ struct intc_vect *vect = hw->vectors + i;
unsigned int irq = evt2irq(vect->vect);
struct irq_desc *irq_desc;
@@ -768,8 +882,8 @@ void __init register_intc_controller(struct intc_desc *desc)
intc_register_irq(desc, d, vect->enum_id, irq);
- for (k = i + 1; k < desc->nr_vectors; k++) {
- struct intc_vect *vect2 = desc->vectors + k;
+ for (k = i + 1; k < hw->nr_vectors; k++) {
+ struct intc_vect *vect2 = hw->vectors + k;
unsigned int irq2 = evt2irq(vect2->vect);
if (vect->enum_id != vect2->enum_id)
@@ -789,11 +903,15 @@ void __init register_intc_controller(struct intc_desc *desc)
vect2->enum_id = 0;
/* redirect this interrupts to the first one */
- set_irq_chip_and_handler_name(irq2, &d->chip,
- intc_redirect_irq, "redirect");
+ set_irq_chip(irq2, &dummy_irq_chip);
+ set_irq_chained_handler(irq2, intc_redirect_irq);
set_irq_data(irq2, (void *)irq);
}
}
+
+ /* enable bits matching force_enable after registering irqs */
+ if (desc->force_enable)
+ intc_enable_disable_enum(desc, d, desc->force_enable, 1);
}
static int intc_suspend(struct sys_device *dev, pm_message_t state)
@@ -876,7 +994,7 @@ device_initcall(register_intc_sysdevs);
/*
* Dynamic IRQ allocation and deallocation
*/
-static unsigned int create_irq_on_node(unsigned int irq_want, int node)
+unsigned int create_irq_nr(unsigned int irq_want, int node)
{
unsigned int irq = 0, new;
unsigned long flags;
@@ -885,24 +1003,28 @@ static unsigned int create_irq_on_node(unsigned int irq_want, int node)
spin_lock_irqsave(&vector_lock, flags);
/*
- * First try the wanted IRQ, then scan.
+ * First try the wanted IRQ
*/
- if (test_and_set_bit(irq_want, intc_irq_map)) {
+ if (test_and_set_bit(irq_want, intc_irq_map) == 0) {
+ new = irq_want;
+ } else {
+ /* .. then fall back to scanning. */
new = find_first_zero_bit(intc_irq_map, nr_irqs);
if (unlikely(new == nr_irqs))
goto out_unlock;
- desc = irq_to_desc_alloc_node(new, node);
- if (unlikely(!desc)) {
- pr_info("can't get irq_desc for %d\n", new);
- goto out_unlock;
- }
-
- desc = move_irq_desc(desc, node);
__set_bit(new, intc_irq_map);
- irq = new;
}
+ desc = irq_to_desc_alloc_node(new, node);
+ if (unlikely(!desc)) {
+ pr_info("can't get irq_desc for %d\n", new);
+ goto out_unlock;
+ }
+
+ desc = move_irq_desc(desc, node);
+ irq = new;
+
out_unlock:
spin_unlock_irqrestore(&vector_lock, flags);
@@ -921,7 +1043,7 @@ int create_irq(void)
int nid = cpu_to_node(smp_processor_id());
int irq;
- irq = create_irq_on_node(NR_IRQS_LEGACY, nid);
+ irq = create_irq_nr(NR_IRQS_LEGACY, nid);
if (irq == 0)
irq = -1;
diff --git a/drivers/sh/pfc.c b/drivers/sh/pfc.c
index 082604e..cf0303ac 100644
--- a/drivers/sh/pfc.c
+++ b/drivers/sh/pfc.c
@@ -337,12 +337,39 @@ static int pinmux_config_gpio(struct pinmux_info *gpioc, unsigned gpio,
if (!enum_id)
break;
+ /* first check if this is a function enum */
in_range = enum_in_range(enum_id, &gpioc->function);
- if (!in_range && range) {
- in_range = enum_in_range(enum_id, range);
-
- if (in_range && enum_id == range->force)
- continue;
+ if (!in_range) {
+ /* not a function enum */
+ if (range) {
+ /*
+ * other range exists, so this pin is
+ * a regular GPIO pin that now is being
+ * bound to a specific direction.
+ *
+ * for this case we only allow function enums
+ * and the enums that match the other range.
+ */
+ in_range = enum_in_range(enum_id, range);
+
+ /*
+ * special case pass through for fixed
+ * input-only or output-only pins without
+ * function enum register association.
+ */
+ if (in_range && enum_id == range->force)
+ continue;
+ } else {
+ /*
+ * no other range exists, so this pin
+ * must then be of the function type.
+ *
+ * allow function type pins to select
+ * any combination of function/in/out
+ * in their MARK lists.
+ */
+ in_range = 1;
+ }
}
if (!in_range)