mmc: sh_mobile_sdhi: support modular mmc-core with non-standard hotplug

Currently if a platform wants to implement a non-standard card-detection
method, it would need to call tmio_mmc_cd_wakeup(), which is an inline
function, calling mmc_detect_change(). For this the platform would have
to link mmc_core statically into the kernel, losing the ability to build
it as a module. This patch adds a callback to the sh_mobile_sdhi driver,
which eliminates this dependency.

Signed-off-by: Guennadi Liakhovetski <[email protected]>
Acked-by: Magnus Damm <[email protected]>
Signed-off-by: Chris Ball <[email protected]>
This commit is contained in:
Guennadi Liakhovetski 2012-03-09 10:16:00 +01:00 • committed by Chris Ball
commit 7f52421743
2 changed files with 20 additions and 2 deletions

View file

@ -90,6 +90,15 @@ static int sh_mobile_sdhi_write16_hook(struct tmio_mmc_host *host, int addr)
return 0;
}
static void sh_mobile_sdhi_cd_wakeup(const struct platform_device *pdev)
{
mmc_detect_change(dev_get_drvdata(&pdev->dev), msecs_to_jiffies(100));
}
static const struct sh_mobile_sdhi_ops sdhi_ops = {
.cd_wakeup = sh_mobile_sdhi_cd_wakeup,
};
static int __devinit sh_mobile_sdhi_probe(struct platform_device *pdev)
{
struct sh_mobile_sdhi *priv;
@ -110,7 +119,7 @@ static int __devinit sh_mobile_sdhi_probe(struct platform_device *pdev)
p->pdata = mmc_data;
if (p->init) {
ret = p->init(pdev);
ret = p->init(pdev, &sdhi_ops);
if (ret)
goto einit;
}