Menon, Nishanth had written, on 10/15/2010 08:24 AM, the following:
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 <t...@atomide.com>
Cc: Madhusudhan Chikkature <madhu...@ti.com>
Cc: Adrian Hunter <adrian.hun...@nokia.com>
Cc: Samuel Ortiz <sa...@linux.intel.com>
Acked-by: Kishore Kadiyala <kishore.kadiy...@ti.com>
Signed-off-by: Nishanth Menon <n...@ti.com>
---
Depends on
http://git.kernel.org/?p=linux/kernel/git/sameo/mfd-2.6.git;a=commitdiff;h=1bf5197061a4aec99e9fd4f92d4a543310f83585;hp=0c9b33e5a23e2053165c9e30ffff3b3a3cf1b2b8
This patch probably should be squashed to that.
Note to Tony/Sameo:
I generated this patch for linux-omap after cherry picking the above
patch. reason being:
http://git.kernel.org/?p=linux/kernel/git/tmlind/linux-omap-2.6.git;a=shortlog;h=refs/heads/omap-for-linus
has fixes we need for Pandaboard
I am at a loss however which tree this patch might be carried on..
arch/arm/mach-omap2/board-omap4panda.c | 15 ++++++++++++---
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 a9d8a19..47cc8d2 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;
}
--
Regards,
Nishanth Menon
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