From 88751ea795005d6afc20f498f9c07b802fa38f55 Mon Sep 17 00:00:00 2001 From: Rabin Vincent Date: Tue, 22 Jun 2010 14:47:41 +0530 Subject: [PATCH 17/46] mmci: allow neither ->status nor gpio_cd to be specified The card may be always present on the board, and for these cases neither a status callback nor a card detect GPIO is required, and card detection polling can be disabled. Acked-by: Linus Walleij Signed-off-by: Rabin Vincent --- drivers/mmc/host/mmci.c | 10 +++++++--- 1 files changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c index a922a00..fd89d92 100644 --- a/drivers/mmc/host/mmci.c +++ b/drivers/mmc/host/mmci.c @@ -589,9 +589,12 @@ static int mmci_get_cd(struct mmc_host *mmc) struct mmci_platform_data *plat = host->plat; unsigned int status; - if (host->gpio_cd == -ENOSYS) + if (host->gpio_cd == -ENOSYS) { + if (!plat->status) + return 1; /* Assume always present */ + status = plat->status(mmc_dev(host->mmc)); - else + } else status = !!gpio_get_value(host->gpio_cd) ^ plat->cd_invert; /* @@ -787,7 +790,8 @@ static int __devinit mmci_probe(struct amba_device *dev, struct amba_id *id) goto err_gpio_wp; } - if (host->gpio_cd_irq < 0) + if ((host->plat->status || host->gpio_cd != -ENOSYS) + && host->gpio_cd_irq < 0) mmc->caps |= MMC_CAP_NEEDS_POLL; ret = request_irq(dev->irq[0], mmci_irq, IRQF_SHARED, DRIVER_NAME " (cmd)", host); -- 1.6.3.3