The patch titled
s3cmci: make SDIO IRQ hardware IRQ support build-time configurable
has been added to the -mm tree. Its filename is
s3cmci-make-sdio-irq-hardware-irq-support-build-time-configurable.patch
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------------------------------------------------------
Subject: s3cmci: make SDIO IRQ hardware IRQ support build-time configurable
From: Ben Dooks <ben@xxxxxxxxxxxx>
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@xxxxxxxxxxxx>
Cc: <linux-mmc@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/mmc/host/Kconfig | 7 +++++++
drivers/mmc/host/s3cmci.c | 9 +++++++--
2 files changed, 14 insertions(+), 2 deletions(-)
diff -puN drivers/mmc/host/Kconfig~s3cmci-make-sdio-irq-hardware-irq-support-build-time-configurable drivers/mmc/host/Kconfig
--- a/drivers/mmc/host/Kconfig~s3cmci-make-sdio-irq-hardware-irq-support-build-time-configurable
+++ a/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 -puN drivers/mmc/host/s3cmci.c~s3cmci-make-sdio-irq-hardware-irq-support-build-time-configurable drivers/mmc/host/s3cmci.c
--- a/drivers/mmc/host/s3cmci.c~s3cmci-make-sdio-irq-hardware-irq-support-build-time-configurable
+++ a/drivers/mmc/host/s3cmci.c
@@ -1715,7 +1715,11 @@ static int __devinit s3cmci_probe(struct
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
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;
_
Patches currently in -mm which might be from ben@xxxxxxxxxxxx are
linux-next.patch
s3cmci-use-resource_size-instead-of-local-macro.patch
s3cmci-update-probe-to-use-new-platform-id-list.patch
s3cmci-change-gpio-to-gpiolib-from-s3c24xx-specific-calls.patch
s3cmci-change-to-use-dev_pm_ops.patch
s3cmci-fix-direct-write-to-interrupt-mask.patch
s3cmci-add-debugfs-support-for-examining-driver-and-hardware-state.patch
s3cmci-add-sdio-irq-support.patch
s3cmci-kconfig-selection-for-pio-dma-both.patch
s3cmci-dma-fixes.patch
s3cmci-make-sdio-irq-hardware-irq-support-build-time-configurable.patch
s3cmci-add-better-support-for-no-card-detect-or-write-protect-available.patch
gpiolib-add-names-file-in-gpio-chip-sysfs.patch
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