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ARM: PNX4008: move i2c_adapter structure inside the drivers private data

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Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2009-11-21 12:25:27 +00:00
parent 44c5d73918
commit 9d7f73632c
3 changed files with 26 additions and 36 deletions
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18
arch/arm/mach-pnx4008/i2c.c
View file

@ -18,32 +18,20 @@
#include <mach/irqs.h>
#include <mach/i2c.h>
static struct i2c_adapter pnx_adapter0 = {
.name = I2C_CHIP_NAME "0",
};
static struct i2c_adapter pnx_adapter1 = {
.name = I2C_CHIP_NAME "1",
};
static struct i2c_adapter pnx_adapter2 = {
.name = "USB-I2C",
};
static struct i2c_pnx_data i2c0_data = {
.adapter = &pnx_adapter0,
.name = I2C_CHIP_NAME "0",
.base = PNX4008_I2C1_BASE,
.irq = I2C_1_INT,
};
static struct i2c_pnx_data i2c1_data = {
.adapter = &pnx_adapter1,
.name = I2C_CHIP_NAME "1",
.base = PNX4008_I2C2_BASE,
.irq = I2C_2_INT,
};
static struct i2c_pnx_data i2c2_data = {
.adapter = &pnx_adapter2,
.name = "USB-I2C",
.base = (PNX4008_USB_CONFIG_BASE + 0x300),
.irq = USB_I2C_INT,
};

40
drivers/i2c/busses/i2c-pnx.c
View file

@ -551,8 +551,7 @@ static struct i2c_algorithm pnx_algorithm = {
static int i2c_pnx_controller_suspend(struct platform_device *pdev,
pm_message_t state)
{
struct i2c_pnx_data *i2c_pnx = platform_get_drvdata(pdev);
struct i2c_pnx_algo_data *alg_data = i2c_pnx->adapter->algo_data;
struct i2c_pnx_algo_data *alg_data = platform_get_drvdata(pdev);
/* FIXME: shouldn't this be clk_disable? */
clk_enable(alg_data->clk);
@ -562,8 +561,7 @@ static int i2c_pnx_controller_suspend(struct platform_device *pdev,
static int i2c_pnx_controller_resume(struct platform_device *pdev)
{
struct i2c_pnx_data *i2c_pnx = platform_get_drvdata(pdev);
struct i2c_pnx_algo_data *alg_data = i2c_pnx->adapter->algo_data;
struct i2c_pnx_algo_data *alg_data = platform_get_drvdata(pdev);
return clk_enable(alg_data->clk);
}
@ -580,7 +578,7 @@ static int __devinit i2c_pnx_probe(struct platform_device *pdev)
unsigned long freq;
struct i2c_pnx_data *i2c_pnx = pdev->dev.platform_data;
if (!i2c_pnx || !i2c_pnx->adapter) {
if (!i2c_pnx || !i2c_pnx->name) {
dev_err(&pdev->dev, "%s: no platform data supplied\n",
__func__);
ret = -EINVAL;
@ -593,10 +591,15 @@ static int __devinit i2c_pnx_probe(struct platform_device *pdev)
goto err_kzalloc;
}
platform_set_drvdata(pdev, i2c_pnx);
platform_set_drvdata(pdev, alg_data);
i2c_pnx->adapter->algo = &pnx_algorithm;
i2c_pnx->adapter->algo_data = alg_data;
strlcpy(alg_data->adapter.name, i2c_pnx->name,
sizeof(alg_data->adapter.name));
alg_data->adapter.dev.parent = &pdev->dev;
alg_data->adapter.algo = &pnx_algorithm;
alg_data->adapter.algo_data = alg_data;
alg_data->adapter.nr = pdev->id;
alg_data->i2c_pnx = i2c_pnx;
alg_data->clk = clk_get(&pdev->dev, NULL);
if (IS_ERR(alg_data->clk)) {
@ -606,7 +609,7 @@ static int __devinit i2c_pnx_probe(struct platform_device *pdev)
init_timer(&alg_data->mif.timer);
alg_data->mif.timer.function = i2c_pnx_timeout;
alg_data->mif.timer.data = (unsigned long)i2c_pnx->adapter;
alg_data->mif.timer.data = (unsigned long)&alg_data->adapter;
/* Register I/O resource */
if (!request_mem_region(i2c_pnx->base, I2C_PNX_REGION_SIZE,
@ -654,26 +657,24 @@ static int __devinit i2c_pnx_probe(struct platform_device *pdev)
init_completion(&alg_data->mif.complete);
ret = request_irq(i2c_pnx->irq, i2c_pnx_interrupt,
0, pdev->name, i2c_pnx->adapter);
0, pdev->name, &alg_data->adapter);
if (ret)
goto out_clock;
/* Register this adapter with the I2C subsystem */
i2c_pnx->adapter->dev.parent = &pdev->dev;
i2c_pnx->adapter->nr = pdev->id;
ret = i2c_add_numbered_adapter(i2c_pnx->adapter);
ret = i2c_add_numbered_adapter(&alg_data->adapter);
if (ret < 0) {
dev_err(&pdev->dev, "I2C: Failed to add bus\n");
goto out_irq;
}
dev_dbg(&pdev->dev, "%s: Master at %#8x, irq %d.\n",
i2c_pnx->adapter->name, i2c_pnx->base, i2c_pnx->irq);
alg_data->adapter.name, i2c_pnx->base, i2c_pnx->irq);
return 0;
out_irq:
free_irq(i2c_pnx->irq, i2c_pnx->adapter);
free_irq(i2c_pnx->irq, &alg_data->adapter);
out_clock:
clk_disable(alg_data->clk);
out_unmap:
@ -692,12 +693,11 @@ static int __devinit i2c_pnx_probe(struct platform_device *pdev)
static int __devexit i2c_pnx_remove(struct platform_device *pdev)
{
struct i2c_pnx_data *i2c_pnx = platform_get_drvdata(pdev);
struct i2c_adapter *adap = i2c_pnx->adapter;
struct i2c_pnx_algo_data *alg_data = adap->algo_data;
struct i2c_pnx_algo_data *alg_data = platform_get_drvdata(pdev);
struct i2c_pnx_data *i2c_pnx = alg_data->i2c_pnx;
free_irq(i2c_pnx->irq, i2c_pnx->adapter);
i2c_del_adapter(adap);
free_irq(i2c_pnx->irq, &alg_data->adapter);
i2c_del_adapter(&alg_data->adapter);
clk_disable(alg_data->clk);
iounmap(alg_data->ioaddr);
release_mem_region(i2c_pnx->base, I2C_PNX_REGION_SIZE);

4
include/linux/i2c-pnx.h
View file

@ -29,10 +29,12 @@ struct i2c_pnx_algo_data {
struct i2c_pnx_mif mif;
int last;
struct clk *clk;
struct i2c_pnx_data *i2c_pnx;
struct i2c_adapter adapter;
};
struct i2c_pnx_data {
struct i2c_adapter *adapter;
const char *name;
u32 base;
int irq;
};