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authorGuennadi Liakhovetski <g.liakhovetski@gmx.de>2012-03-09 09:16:00 (GMT)
committerChris Ball <cjb@laptop.org>2012-03-27 16:20:19 (GMT)
commit7f524217439cc17da74523582c303cced432713e (patch)
treecf3d25dd99f12c8ce73ea1ce45e0ae9f86503f2c /include/linux/mmc
parente82b4ac94e5c43fad51b975aed058858ceda1f0f (diff)
downloadlinux-fsl-qoriq-7f524217439cc17da74523582c303cced432713e.tar.xz
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 'include/linux/mmc')
-rw-r--r--include/linux/mmc/sh_mobile_sdhi.h11
1 files changed, 10 insertions, 1 deletions
diff --git a/include/linux/mmc/sh_mobile_sdhi.h b/include/linux/mmc/sh_mobile_sdhi.h
index 686b85b..e94e620 100644
--- a/include/linux/mmc/sh_mobile_sdhi.h
+++ b/include/linux/mmc/sh_mobile_sdhi.h
@@ -10,6 +10,14 @@ struct tmio_mmc_data;
#define SH_MOBILE_SDHI_IRQ_SDCARD "sdcard"
#define SH_MOBILE_SDHI_IRQ_SDIO "sdio"
+/**
+ * struct sh_mobile_sdhi_ops - SDHI driver callbacks
+ * @cd_wakeup: trigger a card-detection run
+ */
+struct sh_mobile_sdhi_ops {
+ void (*cd_wakeup)(const struct platform_device *pdev);
+};
+
struct sh_mobile_sdhi_info {
int dma_slave_tx;
int dma_slave_rx;
@@ -22,7 +30,8 @@ struct sh_mobile_sdhi_info {
int (*get_cd)(struct platform_device *pdev);
/* callbacks for board specific setup code */
- int (*init)(struct platform_device *pdev);
+ int (*init)(struct platform_device *pdev,
+ const struct sh_mobile_sdhi_ops *ops);
void (*cleanup)(struct platform_device *pdev);
};