linux-kernel - [PATCH 4/4] atmel-mci: Set MMC_CAP_NEEDS_POLL if no detect

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Date:	Fri, 19 Sep 2008 21:09:30 +0200
From:	Haavard Skinnemoen <haavard.skinnemoen@...el.com>
To:	Pierre Ossman <drzeus-list@...eus.cx>
Cc:	linux-kernel@...r.kernel.org, kernel@...32linux.org,
	Haavard Skinnemoen <haavard.skinnemoen@...el.com>
Subject: [PATCH 4/4] 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@...el.com>
---
 drivers/mmc/host/atmel-mci.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c
index 3909608..917035e 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");
-- 
1.5.6.5

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