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[ARM] Convert SA1111 to use clock architecture

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Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King
2006-03-15 15:54:37 +00:00
committed by Russell King
parent 824b5b5e59
commit 97d654f8eb
5 changed files with 278 additions and 23 deletions
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41
arch/arm/common/sa1111.c
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@@ -26,6 +26,7 @@
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/dma-mapping.h>
#include <linux/clk.h>
#include <asm/hardware.h>
#include <asm/mach-types.h>
@@ -36,10 +37,6 @@
#include <asm/hardware/sa1111.h>
#ifdef CONFIG_ARCH_PXA
#include <asm/arch/pxa-regs.h>
#endif
extern void __init sa1110_mb_enable(void);
/*
@@ -51,6 +48,7 @@ extern void __init sa1110_mb_enable(void);
*/
struct sa1111 {
struct device *dev;
struct clk *clk;
unsigned long phys;
int irq;
spinlock_t lock;
@@ -451,19 +449,7 @@ static void sa1111_wake(struct sa1111 *sachip)
spin_lock_irqsave(&sachip->lock, flags);
#ifdef CONFIG_ARCH_SA1100
/*
* First, set up the 3.6864MHz clock on GPIO 27 for the SA-1111:
* (SA-1110 Developer's Manual, section 9.1.2.1)
*/
GAFR |= GPIO_32_768kHz;
GPDR |= GPIO_32_768kHz;
TUCR = TUCR_3_6864MHz;
#elif CONFIG_ARCH_PXA
pxa_gpio_mode(GPIO11_3_6MHz_MD);
#else
#error missing clock setup
#endif
clk_enable(sachip->clk);
/*
* Turn VCO on, and disable PLL Bypass.
@@ -641,6 +627,12 @@ __sa1111_probe(struct device *me, struct resource *mem, int irq)
memset(sachip, 0, sizeof(struct sa1111));
sachip->clk = clk_get(me, "GPIO27_CLK");
if (!sachip->clk) {
ret = PTR_ERR(sachip->clk);
goto err_free;
}
spin_lock_init(&sachip->lock);
sachip->dev = me;
@@ -656,7 +648,7 @@ __sa1111_probe(struct device *me, struct resource *mem, int irq)
sachip->base = ioremap(mem->start, PAGE_SIZE * 2);
if (!sachip->base) {
ret = -ENOMEM;
goto out;
goto err_clkput;
}
/*
@@ -666,7 +658,7 @@ __sa1111_probe(struct device *me, struct resource *mem, int irq)
if ((id & SKID_ID_MASK) != SKID_SA1111_ID) {
printk(KERN_DEBUG "SA1111 not detected: ID = %08lx\n", id);
ret = -ENODEV;
goto unmap;
goto err_unmap;
}
printk(KERN_INFO "SA1111 Microprocessor Companion Chip: "
@@ -726,9 +718,11 @@ __sa1111_probe(struct device *me, struct resource *mem, int irq)
return 0;
unmap:
err_unmap:
iounmap(sachip->base);
out:
err_clkput:
clk_put(sachip->clk);
err_free:
kfree(sachip);
return ret;
}
@@ -751,6 +745,8 @@ static void __sa1111_remove(struct sa1111 *sachip)
sa1111_writel(0, irqbase + SA1111_WAKEEN0);
sa1111_writel(0, irqbase + SA1111_WAKEEN1);
clk_disable(sachip->clk);
if (sachip->irq != NO_IRQ) {
set_irq_chained_handler(sachip->irq, NULL);
set_irq_data(sachip->irq, NULL);
@@ -759,6 +755,7 @@ static void __sa1111_remove(struct sa1111 *sachip)
}
iounmap(sachip->base);
clk_put(sachip->clk);
kfree(sachip);
}
@@ -857,6 +854,8 @@ static int sa1111_suspend(struct platform_device *dev, pm_message_t state)
sa1111_writel(0, sachip->base + SA1111_SKPWM0);
sa1111_writel(0, sachip->base + SA1111_SKPWM1);
clk_disable(sachip->clk);
spin_unlock_irqrestore(&sachip->lock, flags);
return 0;