From: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Date: Fri, 19 Sep 2008 19:09:30 +0000 (+0200)
Subject: atmel-mci: Set MMC_CAP_NEEDS_POLL if no detect_pin
X-Git-Url: http://git.mmlx.us/?a=commitdiff_plain;h=da45b66ec89bbf3a1c172688c35d4d3a6e8e757f;p=linux-edison.git

atmel-mci: Set MMC_CAP_NEEDS_POLL if no detect_pin

This allows the mmc core to detect card insertion/removal for slots that
don't have any CD pin wired up.

Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
---

diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c
index 39096083bb6..917035e16da 100644
--- a/drivers/mmc/host/atmel-mci.c
+++ b/drivers/mmc/host/atmel-mci.c
@@ -1059,6 +1059,10 @@ static int __init atmci_probe(struct platform_device *pdev)
 			host->present = !gpio_get_value(host->detect_pin);
 		}
 	}
+
+	if (!gpio_is_valid(host->detect_pin))
+		mmc->caps |= MMC_CAP_NEEDS_POLL;
+
 	if (gpio_is_valid(host->wp_pin)) {
 		if (gpio_request(host->wp_pin, "mmc_wp")) {
 			dev_dbg(&mmc->class_dev, "no WP pin available\n");