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Diffstat (limited to 'ANDROID_3.4.5/drivers/mfd/mcp-sa11x0.c')
-rw-r--r--ANDROID_3.4.5/drivers/mfd/mcp-sa11x0.c319
1 files changed, 0 insertions, 319 deletions
diff --git a/ANDROID_3.4.5/drivers/mfd/mcp-sa11x0.c b/ANDROID_3.4.5/drivers/mfd/mcp-sa11x0.c
deleted file mode 100644
index c54e244c..00000000
--- a/ANDROID_3.4.5/drivers/mfd/mcp-sa11x0.c
+++ /dev/null
@@ -1,319 +0,0 @@
-/*
- * linux/drivers/mfd/mcp-sa11x0.c
- *
- * Copyright (C) 2001-2005 Russell King
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License.
- *
- * SA11x0 MCP (Multimedia Communications Port) driver.
- *
- * MCP read/write timeouts from Jordi Colomer, rehacked by rmk.
- */
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/io.h>
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/delay.h>
-#include <linux/spinlock.h>
-#include <linux/platform_device.h>
-#include <linux/pm.h>
-#include <linux/mfd/mcp.h>
-
-#include <mach/hardware.h>
-#include <asm/mach-types.h>
-#include <mach/mcp.h>
-
-#define DRIVER_NAME "sa11x0-mcp"
-
-struct mcp_sa11x0 {
- void __iomem *base0;
- void __iomem *base1;
- u32 mccr0;
- u32 mccr1;
-};
-
-/* Register offsets */
-#define MCCR0(m) ((m)->base0 + 0x00)
-#define MCDR0(m) ((m)->base0 + 0x08)
-#define MCDR1(m) ((m)->base0 + 0x0c)
-#define MCDR2(m) ((m)->base0 + 0x10)
-#define MCSR(m) ((m)->base0 + 0x18)
-#define MCCR1(m) ((m)->base1 + 0x00)
-
-#define priv(mcp) ((struct mcp_sa11x0 *)mcp_priv(mcp))
-
-static void
-mcp_sa11x0_set_telecom_divisor(struct mcp *mcp, unsigned int divisor)
-{
- struct mcp_sa11x0 *m = priv(mcp);
-
- divisor /= 32;
-
- m->mccr0 &= ~0x00007f00;
- m->mccr0 |= divisor << 8;
- writel_relaxed(m->mccr0, MCCR0(m));
-}
-
-static void
-mcp_sa11x0_set_audio_divisor(struct mcp *mcp, unsigned int divisor)
-{
- struct mcp_sa11x0 *m = priv(mcp);
-
- divisor /= 32;
-
- m->mccr0 &= ~0x0000007f;
- m->mccr0 |= divisor;
- writel_relaxed(m->mccr0, MCCR0(m));
-}
-
-/*
- * Write data to the device. The bit should be set after 3 subframe
- * times (each frame is 64 clocks). We wait a maximum of 6 subframes.
- * We really should try doing something more productive while we
- * wait.
- */
-static void
-mcp_sa11x0_write(struct mcp *mcp, unsigned int reg, unsigned int val)
-{
- struct mcp_sa11x0 *m = priv(mcp);
- int ret = -ETIME;
- int i;
-
- writel_relaxed(reg << 17 | MCDR2_Wr | (val & 0xffff), MCDR2(m));
-
- for (i = 0; i < 2; i++) {
- udelay(mcp->rw_timeout);
- if (readl_relaxed(MCSR(m)) & MCSR_CWC) {
- ret = 0;
- break;
- }
- }
-
- if (ret < 0)
- printk(KERN_WARNING "mcp: write timed out\n");
-}
-
-/*
- * Read data from the device. The bit should be set after 3 subframe
- * times (each frame is 64 clocks). We wait a maximum of 6 subframes.
- * We really should try doing something more productive while we
- * wait.
- */
-static unsigned int
-mcp_sa11x0_read(struct mcp *mcp, unsigned int reg)
-{
- struct mcp_sa11x0 *m = priv(mcp);
- int ret = -ETIME;
- int i;
-
- writel_relaxed(reg << 17 | MCDR2_Rd, MCDR2(m));
-
- for (i = 0; i < 2; i++) {
- udelay(mcp->rw_timeout);
- if (readl_relaxed(MCSR(m)) & MCSR_CRC) {
- ret = readl_relaxed(MCDR2(m)) & 0xffff;
- break;
- }
- }
-
- if (ret < 0)
- printk(KERN_WARNING "mcp: read timed out\n");
-
- return ret;
-}
-
-static void mcp_sa11x0_enable(struct mcp *mcp)
-{
- struct mcp_sa11x0 *m = priv(mcp);
-
- writel(-1, MCSR(m));
- m->mccr0 |= MCCR0_MCE;
- writel_relaxed(m->mccr0, MCCR0(m));
-}
-
-static void mcp_sa11x0_disable(struct mcp *mcp)
-{
- struct mcp_sa11x0 *m = priv(mcp);
-
- m->mccr0 &= ~MCCR0_MCE;
- writel_relaxed(m->mccr0, MCCR0(m));
-}
-
-/*
- * Our methods.
- */
-static struct mcp_ops mcp_sa11x0 = {
- .set_telecom_divisor = mcp_sa11x0_set_telecom_divisor,
- .set_audio_divisor = mcp_sa11x0_set_audio_divisor,
- .reg_write = mcp_sa11x0_write,
- .reg_read = mcp_sa11x0_read,
- .enable = mcp_sa11x0_enable,
- .disable = mcp_sa11x0_disable,
-};
-
-static int mcp_sa11x0_probe(struct platform_device *dev)
-{
- struct mcp_plat_data *data = dev->dev.platform_data;
- struct resource *mem0, *mem1;
- struct mcp_sa11x0 *m;
- struct mcp *mcp;
- int ret;
-
- if (!data)
- return -ENODEV;
-
- mem0 = platform_get_resource(dev, IORESOURCE_MEM, 0);
- mem1 = platform_get_resource(dev, IORESOURCE_MEM, 1);
- if (!mem0 || !mem1)
- return -ENXIO;
-
- if (!request_mem_region(mem0->start, resource_size(mem0),
- DRIVER_NAME)) {
- ret = -EBUSY;
- goto err_mem0;
- }
-
- if (!request_mem_region(mem1->start, resource_size(mem1),
- DRIVER_NAME)) {
- ret = -EBUSY;
- goto err_mem1;
- }
-
- mcp = mcp_host_alloc(&dev->dev, sizeof(struct mcp_sa11x0));
- if (!mcp) {
- ret = -ENOMEM;
- goto err_alloc;
- }
-
- mcp->owner = THIS_MODULE;
- mcp->ops = &mcp_sa11x0;
- mcp->sclk_rate = data->sclk_rate;
-
- m = priv(mcp);
- m->mccr0 = data->mccr0 | 0x7f7f;
- m->mccr1 = data->mccr1;
-
- m->base0 = ioremap(mem0->start, resource_size(mem0));
- m->base1 = ioremap(mem1->start, resource_size(mem1));
- if (!m->base0 || !m->base1) {
- ret = -ENOMEM;
- goto err_ioremap;
- }
-
- platform_set_drvdata(dev, mcp);
-
- /*
- * Initialise device. Note that we initially
- * set the sampling rate to minimum.
- */
- writel_relaxed(-1, MCSR(m));
- writel_relaxed(m->mccr1, MCCR1(m));
- writel_relaxed(m->mccr0, MCCR0(m));
-
- /*
- * Calculate the read/write timeout (us) from the bit clock
- * rate. This is the period for 3 64-bit frames. Always
- * round this time up.
- */
- mcp->rw_timeout = (64 * 3 * 1000000 + mcp->sclk_rate - 1) /
- mcp->sclk_rate;
-
- ret = mcp_host_add(mcp, data->codec_pdata);
- if (ret == 0)
- return 0;
-
- platform_set_drvdata(dev, NULL);
-
- err_ioremap:
- iounmap(m->base1);
- iounmap(m->base0);
- mcp_host_free(mcp);
- err_alloc:
- release_mem_region(mem1->start, resource_size(mem1));
- err_mem1:
- release_mem_region(mem0->start, resource_size(mem0));
- err_mem0:
- return ret;
-}
-
-static int mcp_sa11x0_remove(struct platform_device *dev)
-{
- struct mcp *mcp = platform_get_drvdata(dev);
- struct mcp_sa11x0 *m = priv(mcp);
- struct resource *mem0, *mem1;
-
- if (m->mccr0 & MCCR0_MCE)
- dev_warn(&dev->dev,
- "device left active (missing disable call?)\n");
-
- mem0 = platform_get_resource(dev, IORESOURCE_MEM, 0);
- mem1 = platform_get_resource(dev, IORESOURCE_MEM, 1);
-
- platform_set_drvdata(dev, NULL);
- mcp_host_del(mcp);
- iounmap(m->base1);
- iounmap(m->base0);
- mcp_host_free(mcp);
- release_mem_region(mem1->start, resource_size(mem1));
- release_mem_region(mem0->start, resource_size(mem0));
-
- return 0;
-}
-
-#ifdef CONFIG_PM_SLEEP
-static int mcp_sa11x0_suspend(struct device *dev)
-{
- struct mcp_sa11x0 *m = priv(dev_get_drvdata(dev));
-
- if (m->mccr0 & MCCR0_MCE)
- dev_warn(dev, "device left active (missing disable call?)\n");
-
- writel(m->mccr0 & ~MCCR0_MCE, MCCR0(m));
-
- return 0;
-}
-
-static int mcp_sa11x0_resume(struct device *dev)
-{
- struct mcp_sa11x0 *m = priv(dev_get_drvdata(dev));
-
- writel_relaxed(m->mccr1, MCCR1(m));
- writel_relaxed(m->mccr0, MCCR0(m));
-
- return 0;
-}
-#endif
-
-static const struct dev_pm_ops mcp_sa11x0_pm_ops = {
-#ifdef CONFIG_PM_SLEEP
- .suspend = mcp_sa11x0_suspend,
- .freeze = mcp_sa11x0_suspend,
- .poweroff = mcp_sa11x0_suspend,
- .resume_noirq = mcp_sa11x0_resume,
- .thaw_noirq = mcp_sa11x0_resume,
- .restore_noirq = mcp_sa11x0_resume,
-#endif
-};
-
-static struct platform_driver mcp_sa11x0_driver = {
- .probe = mcp_sa11x0_probe,
- .remove = mcp_sa11x0_remove,
- .driver = {
- .name = DRIVER_NAME,
- .owner = THIS_MODULE,
- .pm = &mcp_sa11x0_pm_ops,
- },
-};
-
-/*
- * This needs re-working
- */
-module_platform_driver(mcp_sa11x0_driver);
-
-MODULE_ALIAS("platform:" DRIVER_NAME);
-MODULE_AUTHOR("Russell King <rmk@arm.linux.org.uk>");
-MODULE_DESCRIPTION("SA11x0 multimedia communications port driver");
-MODULE_LICENSE("GPL");
generated by cgit (git 2.34.1) at 2025-03-12 19:34:33 +0000