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-rw-r--r--drivers/serial/sh-sci.c57
-rw-r--r--drivers/sh/intc.c31
2 files changed, 67 insertions, 21 deletions
diff --git a/drivers/serial/sh-sci.c b/drivers/serial/sh-sci.c
index 980f39449ee..054a8427c73 100644
--- a/drivers/serial/sh-sci.c
+++ b/drivers/serial/sh-sci.c
@@ -83,8 +83,8 @@ struct sci_port {
/* Interface clock */
struct clk *iclk;
- /* Data clock */
- struct clk *dclk;
+ /* Function clock */
+ struct clk *fclk;
struct list_head node;
struct dma_chan *chan_tx;
@@ -803,7 +803,7 @@ static int sci_notifier(struct notifier_block *self,
(phase == CPUFREQ_RESUMECHANGE)) {
spin_lock_irqsave(&priv->lock, flags);
list_for_each_entry(sci_port, &priv->ports, node)
- sci_port->port.uartclk = clk_get_rate(sci_port->dclk);
+ sci_port->port.uartclk = clk_get_rate(sci_port->iclk);
spin_unlock_irqrestore(&priv->lock, flags);
}
@@ -814,21 +814,17 @@ static void sci_clk_enable(struct uart_port *port)
{
struct sci_port *sci_port = to_sci_port(port);
- clk_enable(sci_port->dclk);
- sci_port->port.uartclk = clk_get_rate(sci_port->dclk);
-
- if (sci_port->iclk)
- clk_enable(sci_port->iclk);
+ clk_enable(sci_port->iclk);
+ sci_port->port.uartclk = clk_get_rate(sci_port->iclk);
+ clk_enable(sci_port->fclk);
}
static void sci_clk_disable(struct uart_port *port)
{
struct sci_port *sci_port = to_sci_port(port);
- if (sci_port->iclk)
- clk_disable(sci_port->iclk);
-
- clk_disable(sci_port->dclk);
+ clk_disable(sci_port->fclk);
+ clk_disable(sci_port->iclk);
}
static int sci_request_irq(struct sci_port *port)
@@ -1557,10 +1553,10 @@ static struct uart_ops sci_uart_ops = {
#endif
};
-static void __devinit sci_init_single(struct platform_device *dev,
- struct sci_port *sci_port,
- unsigned int index,
- struct plat_sci_port *p)
+static int __devinit sci_init_single(struct platform_device *dev,
+ struct sci_port *sci_port,
+ unsigned int index,
+ struct plat_sci_port *p)
{
struct uart_port *port = &sci_port->port;
@@ -1581,8 +1577,23 @@ static void __devinit sci_init_single(struct platform_device *dev,
}
if (dev) {
- sci_port->iclk = p->clk ? clk_get(&dev->dev, p->clk) : NULL;
- sci_port->dclk = clk_get(&dev->dev, "peripheral_clk");
+ sci_port->iclk = clk_get(&dev->dev, "sci_ick");
+ if (IS_ERR(sci_port->iclk)) {
+ sci_port->iclk = clk_get(&dev->dev, "peripheral_clk");
+ if (IS_ERR(sci_port->iclk)) {
+ dev_err(&dev->dev, "can't get iclk\n");
+ return PTR_ERR(sci_port->iclk);
+ }
+ }
+
+ /*
+ * The function clock is optional, ignore it if we can't
+ * find it.
+ */
+ sci_port->fclk = clk_get(&dev->dev, "sci_fck");
+ if (IS_ERR(sci_port->fclk))
+ sci_port->fclk = NULL;
+
sci_port->enable = sci_clk_enable;
sci_port->disable = sci_clk_disable;
port->dev = &dev->dev;
@@ -1609,6 +1620,7 @@ static void __devinit sci_init_single(struct platform_device *dev,
#endif
memcpy(&sci_port->irqs, &p->irqs, sizeof(p->irqs));
+ return 0;
}
#ifdef CONFIG_SERIAL_SH_SCI_CONSOLE
@@ -1758,8 +1770,11 @@ static int sci_remove(struct platform_device *dev)
cpufreq_unregister_notifier(&priv->clk_nb, CPUFREQ_TRANSITION_NOTIFIER);
spin_lock_irqsave(&priv->lock, flags);
- list_for_each_entry(p, &priv->ports, node)
+ list_for_each_entry(p, &priv->ports, node) {
uart_remove_one_port(&sci_uart_driver, &p->port);
+ clk_put(p->iclk);
+ clk_put(p->fclk);
+ }
spin_unlock_irqrestore(&priv->lock, flags);
kfree(priv);
@@ -1785,7 +1800,9 @@ static int __devinit sci_probe_single(struct platform_device *dev,
return 0;
}
- sci_init_single(dev, sciport, index, p);
+ ret = sci_init_single(dev, sciport, index, p);
+ if (ret)
+ return ret;
ret = uart_add_one_port(&sci_uart_driver, &sciport->port);
if (ret)
diff --git a/drivers/sh/intc.c b/drivers/sh/intc.c
index 3a5a17db947..b8983fed76f 100644
--- a/drivers/sh/intc.c
+++ b/drivers/sh/intc.c
@@ -2,7 +2,7 @@
* Shared interrupt handling code for IPR and INTC2 types of IRQs.
*
* Copyright (C) 2007, 2008 Magnus Damm
- * Copyright (C) 2009 Paul Mundt
+ * Copyright (C) 2009, 2010 Paul Mundt
*
* Based on intc2.c and ipr.c
*
@@ -26,6 +26,7 @@
#include <linux/list.h>
#include <linux/topology.h>
#include <linux/bitmap.h>
+#include <linux/cpumask.h>
#define _INTC_MK(fn, mode, addr_e, addr_d, width, shift) \
((shift) | ((width) << 5) | ((fn) << 9) | ((mode) << 13) | \
@@ -234,6 +235,10 @@ static inline void _intc_enable(unsigned int irq, unsigned long handle)
unsigned int cpu;
for (cpu = 0; cpu < SMP_NR(d, _INTC_ADDR_E(handle)); cpu++) {
+#ifdef CONFIG_SMP
+ if (!cpumask_test_cpu(cpu, irq_to_desc(irq)->affinity))
+ continue;
+#endif
addr = INTC_REG(d, _INTC_ADDR_E(handle), cpu);
intc_enable_fns[_INTC_MODE(handle)](addr, handle, intc_reg_fns\
[_INTC_FN(handle)], irq);
@@ -253,6 +258,10 @@ static void intc_disable(unsigned int irq)
unsigned int cpu;
for (cpu = 0; cpu < SMP_NR(d, _INTC_ADDR_D(handle)); cpu++) {
+#ifdef CONFIG_SMP
+ if (!cpumask_test_cpu(cpu, irq_to_desc(irq)->affinity))
+ continue;
+#endif
addr = INTC_REG(d, _INTC_ADDR_D(handle), cpu);
intc_disable_fns[_INTC_MODE(handle)](addr, handle,intc_reg_fns\
[_INTC_FN(handle)], irq);
@@ -301,6 +310,23 @@ static int intc_set_wake(unsigned int irq, unsigned int on)
return 0; /* allow wakeup, but setup hardware in intc_suspend() */
}
+#ifdef CONFIG_SMP
+/*
+ * This is held with the irq desc lock held, so we don't require any
+ * additional locking here at the intc desc level. The affinity mask is
+ * later tested in the enable/disable paths.
+ */
+static int intc_set_affinity(unsigned int irq, const struct cpumask *cpumask)
+{
+ if (!cpumask_intersects(cpumask, cpu_online_mask))
+ return -1;
+
+ cpumask_copy(irq_to_desc(irq)->affinity, cpumask);
+
+ return 0;
+}
+#endif
+
static void intc_mask_ack(unsigned int irq)
{
struct intc_desc_int *d = get_intc_desc(irq);
@@ -843,6 +869,9 @@ void __init register_intc_controller(struct intc_desc *desc)
d->chip.shutdown = intc_disable;
d->chip.set_type = intc_set_sense;
d->chip.set_wake = intc_set_wake;
+#ifdef CONFIG_SMP
+ d->chip.set_affinity = intc_set_affinity;
+#endif
if (hw->ack_regs) {
for (i = 0; i < hw->nr_ack_regs; i++)
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-19 13:07:09 +0000