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authorMenon, Nishanth <nm@ti.com>2010-10-19 09:50:25 -0500
committerSamuel Ortiz <sameo@linux.intel.com>2010-10-29 00:30:32 +0200
commitbf56f0a6668cd399b5136d2216f24ec97f0ce716 (patch)
treee26b119e77d5a7940e5017a5352ed966c8f3a4bf /arch
parent47dabaeedb4d6e841ac4d66ef249ce9c61303049 (diff)
omap4: pandaboard: fix up mmc card detect logic
For MMC1 Controller, card detect interrupt source is twl6030 which is non-gpio. The card detect call back function provides card present/absent status by reading MMC Control register present on twl6030. This functionality was introduced in mfd tree on track to kernel.org Sync pandaboard to the same and make mmc work. Cc: Tony Lindgren <tony@atomide.com> Cc: Madhusudhan Chikkature <madhu.cr@ti.com> Cc: Adrian Hunter <adrian.hunter@nokia.com> Cc: Samuel Ortiz <sameo@linux.intel.com> Acked-by: Kishore Kadiyala <kishore.kadiyala@ti.com> Signed-off-by: Nishanth Menon <nm@ti.com> Tested-by: Jarkko Nikula <jhnikula@gmail.com> Acked-by: Madhusudhan Chikkature <madhu.cr@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/mach-omap2/board-omap4panda.c15
1 files changed, 12 insertions, 3 deletions
diff --git a/arch/arm/mach-omap2/board-omap4panda.c b/arch/arm/mach-omap2/board-omap4panda.c
index 702f2a63f2c1..1ecd0a6cefb7 100644
--- a/arch/arm/mach-omap2/board-omap4panda.c
+++ b/arch/arm/mach-omap2/board-omap4panda.c
@@ -160,10 +160,19 @@ static int omap4_twl6030_hsmmc_late_init(struct device *dev)
struct platform_device, dev);
struct omap_mmc_platform_data *pdata = dev->platform_data;
+ if (!pdata) {
+ dev_err(dev, "%s: NULL platform data\n", __func__);
+ return -EINVAL;
+ }
/* Setting MMC1 Card detect Irq */
- if (pdev->id == 0)
- pdata->slots[0].card_detect_irq = TWL6030_IRQ_BASE +
- MMCDETECT_INTR_OFFSET;
+ if (pdev->id == 0) {
+ ret = twl6030_mmc_card_detect_config();
+ if (ret)
+ dev_err(dev, "%s: Error card detect config(%d)\n",
+ __func__, ret);
+ else
+ pdata->slots[0].card_detect = twl6030_mmc_card_detect;
+ }
return ret;
}