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authorGuennadi Liakhovetski <g.liakhovetski@gmx.de>2012-03-09 10:16:00 +0100
committerChris Ball <cjb@laptop.org>2012-03-27 12:20:19 -0400
commit7f524217439cc17da74523582c303cced432713e (patch)
treecf3d25dd99f12c8ce73ea1ce45e0ae9f86503f2c /drivers/mmc
parente82b4ac94e5c43fad51b975aed058858ceda1f0f (diff)
downloadlinux-7f524217439cc17da74523582c303cced432713e.tar.bz2
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 <g.liakhovetski@gmx.de> Acked-by: Magnus Damm <damm@opensource.se> Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/host/sh_mobile_sdhi.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/mmc/host/sh_mobile_sdhi.c b/drivers/mmc/host/sh_mobile_sdhi.c
index 07ff3fee77b3..934b68e9efc3 100644
--- a/drivers/mmc/host/sh_mobile_sdhi.c
+++ b/drivers/mmc/host/sh_mobile_sdhi.c
@@ -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;
}