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-rw-r--r--drivers/mmc/host/Kconfig7
-rw-r--r--drivers/mmc/host/s3cmci.c9
2 files changed, 14 insertions, 2 deletions
diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
index cf6a6545240b..432ae8358c86 100644
--- a/drivers/mmc/host/Kconfig
+++ b/drivers/mmc/host/Kconfig
@@ -276,6 +276,13 @@ config MMC_S3C
If unsure, say N.
+config MMC_S3C_HW_SDIO_IRQ
+ bool "Hardware support for SDIO IRQ"
+ depends on MMC_S3C
+ help
+ Enable the hardware support for SDIO interrupts instead of using
+ the generic polling code.
+
choice
prompt "Samsung S3C SD/MMC transfer code"
depends on MMC_S3C
diff --git a/drivers/mmc/host/s3cmci.c b/drivers/mmc/host/s3cmci.c
index 0af972275d45..4b627ca16cca 100644
--- a/drivers/mmc/host/s3cmci.c
+++ b/drivers/mmc/host/s3cmci.c
@@ -1715,7 +1715,11 @@ static int __devinit s3cmci_probe(struct platform_device *pdev)
mmc->ops = &s3cmci_ops;
mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34;
+#ifdef CONFIG_MMC_S3C_HW_SDIO_IRQ
mmc->caps = MMC_CAP_4_BIT_DATA | MMC_CAP_SDIO_IRQ;
+#else
+ mmc->caps = MMC_CAP_4_BIT_DATA;
+#endif
mmc->f_min = host->clk_rate / (host->clk_div * 256);
mmc->f_max = host->clk_rate / host->clk_div;
@@ -1750,8 +1754,9 @@ static int __devinit s3cmci_probe(struct platform_device *pdev)
s3cmci_debugfs_attach(host);
platform_set_drvdata(pdev, mmc);
- dev_info(&pdev->dev, "%s - using %s\n", mmc_hostname(mmc),
- s3cmci_host_usedma(host) ? "dma" : "pio");
+ dev_info(&pdev->dev, "%s - using %s, %s SDIO IRQ\n", mmc_hostname(mmc),
+ s3cmci_host_usedma(host) ? "dma" : "pio",
+ mmc->caps & MMC_CAP_SDIO_IRQ ? "hw" : "sw");
return 0;