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clocksource: sh_mtu2: Rename struct sh_mtu2_priv to sh_mtu2_device

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Channel data is private as well, rename priv to device to make the
distrinction between the core device and the channels clearer.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tested-by: Wolfram Sang <wsa@sang-engineering.com>
This commit is contained in:
Laurent Pinchart 2014-03-04 13:04:48 +01:00
parent 42752cc619
commit 7dad72de1b
1 changed files with 33 additions and 32 deletions
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65
drivers/clocksource/sh_mtu2.c
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@ -34,15 +34,15 @@
#include <linux/pm_domain.h>
#include <linux/pm_runtime.h>
struct sh_mtu2_priv;
struct sh_mtu2_device;
struct sh_mtu2_channel {
struct sh_mtu2_priv *mtu;
struct sh_mtu2_device *mtu;
int irq;
struct clock_event_device ced;
};
struct sh_mtu2_priv {
struct sh_mtu2_device {
struct platform_device *pdev;
void __iomem *mapbase;
@ -273,75 +273,76 @@ static int sh_mtu2_register(struct sh_mtu2_channel *ch, char *name,
return 0;
}
static int sh_mtu2_setup(struct sh_mtu2_priv *p, struct platform_device *pdev)
static int sh_mtu2_setup(struct sh_mtu2_device *mtu,
struct platform_device *pdev)
{
struct sh_timer_config *cfg = pdev->dev.platform_data;
struct resource *res;
int ret;
ret = -ENXIO;
memset(p, 0, sizeof(*p));
p->pdev = pdev;
memset(mtu, 0, sizeof(*mtu));
mtu->pdev = pdev;
if (!cfg) {
dev_err(&p->pdev->dev, "missing platform data\n");
dev_err(&mtu->pdev->dev, "missing platform data\n");
goto err0;
}
platform_set_drvdata(pdev, p);
platform_set_drvdata(pdev, mtu);
res = platform_get_resource(p->pdev, IORESOURCE_MEM, 0);
res = platform_get_resource(mtu->pdev, IORESOURCE_MEM, 0);
if (!res) {
dev_err(&p->pdev->dev, "failed to get I/O memory\n");
dev_err(&mtu->pdev->dev, "failed to get I/O memory\n");
goto err0;
}
p->channel.irq = platform_get_irq(p->pdev, 0);
if (p->channel.irq < 0) {
dev_err(&p->pdev->dev, "failed to get irq\n");
mtu->channel.irq = platform_get_irq(mtu->pdev, 0);
if (mtu->channel.irq < 0) {
dev_err(&mtu->pdev->dev, "failed to get irq\n");
goto err0;
}
/* map memory, let mapbase point to our channel */
p->mapbase = ioremap_nocache(res->start, resource_size(res));
if (p->mapbase == NULL) {
dev_err(&p->pdev->dev, "failed to remap I/O memory\n");
mtu->mapbase = ioremap_nocache(res->start, resource_size(res));
if (mtu->mapbase == NULL) {
dev_err(&mtu->pdev->dev, "failed to remap I/O memory\n");
goto err0;
}
/* get hold of clock */
p->clk = clk_get(&p->pdev->dev, "mtu2_fck");
if (IS_ERR(p->clk)) {
dev_err(&p->pdev->dev, "cannot get clock\n");
ret = PTR_ERR(p->clk);
mtu->clk = clk_get(&mtu->pdev->dev, "mtu2_fck");
if (IS_ERR(mtu->clk)) {
dev_err(&mtu->pdev->dev, "cannot get clock\n");
ret = PTR_ERR(mtu->clk);
goto err1;
}
ret = clk_prepare(p->clk);
ret = clk_prepare(mtu->clk);
if (ret < 0)
goto err2;
p->channel.mtu = p;
mtu->channel.mtu = mtu;
ret = sh_mtu2_register(&p->channel, (char *)dev_name(&p->pdev->dev),
ret = sh_mtu2_register(&mtu->channel, (char *)dev_name(&mtu->pdev->dev),
cfg->clockevent_rating);
if (ret < 0)
goto err3;
return 0;
err3:
clk_unprepare(p->clk);
clk_unprepare(mtu->clk);
err2:
clk_put(p->clk);
clk_put(mtu->clk);
err1:
iounmap(p->mapbase);
iounmap(mtu->mapbase);
err0:
return ret;
}
static int sh_mtu2_probe(struct platform_device *pdev)
{
struct sh_mtu2_priv *p = platform_get_drvdata(pdev);
struct sh_mtu2_device *mtu = platform_get_drvdata(pdev);
struct sh_timer_config *cfg = pdev->dev.platform_data;
int ret;
@ -350,20 +351,20 @@ static int sh_mtu2_probe(struct platform_device *pdev)
pm_runtime_enable(&pdev->dev);
}
if (p) {
if (mtu) {
dev_info(&pdev->dev, "kept as earlytimer\n");
goto out;
}
p = kmalloc(sizeof(*p), GFP_KERNEL);
if (p == NULL) {
mtu = kmalloc(sizeof(*mtu), GFP_KERNEL);
if (mtu == NULL) {
dev_err(&pdev->dev, "failed to allocate driver data\n");
return -ENOMEM;
}
ret = sh_mtu2_setup(p, pdev);
ret = sh_mtu2_setup(mtu, pdev);
if (ret) {
kfree(p);
kfree(mtu);
pm_runtime_idle(&pdev->dev);
return ret;
}