adulau/aha
1
0
Fork 0
mirror of https://github.com/adulau/aha.git synced 2024-12-28 03:36:19 +00:00
Code Issues Projects Releases Packages Wiki Activity

s3cmci: make SDIO IRQ hardware IRQ support build-time configurable

Browse source 
We have found a couple of boards where the SDIO IRQ hardware support has
failed to work properly, and thus we should make it configurable whether
or not to be included in the driver.

Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Ben Dooks 2009-10-01 15:44:20 -07:00 committed by Linus Torvalds
parent 68c5ed592f
commit 5a2c4fe04d
2 changed files with 14 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

7
drivers/mmc/host/Kconfig
View file

@ -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

9
drivers/mmc/host/s3cmci.c
View file

@ -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;