The patch titled
sdio: add MMC_CAP_VDD_165_195 host capability
has been added to the -mm tree. Its filename is
sdio-add-mmc_cap_vdd_165_195-host-capability.patch
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The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: sdio: add MMC_CAP_VDD_165_195 host capability
From: Ohad Ben-Cohen <ohad@xxxxxxxxxx>
To allow the usage of MMC_VDD_165_195, host capability MMC_CAP_VDD_165_195
is introduced. This is necessary because MMC_VDD_165_195 is currently
reserved/undefined.
Signed-off-by: Ohad Ben-Cohen <ohad@xxxxxxxxxx>
Cc: <linux-mmc@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/mmc/core/sdio.c | 7 +++++++
include/linux/mmc/host.h | 1 +
2 files changed, 8 insertions(+)
diff -puN drivers/mmc/core/sdio.c~sdio-add-mmc_cap_vdd_165_195-host-capability drivers/mmc/core/sdio.c
--- a/drivers/mmc/core/sdio.c~sdio-add-mmc_cap_vdd_165_195-host-capability
+++ a/drivers/mmc/core/sdio.c
@@ -494,6 +494,13 @@ int mmc_attach_sdio(struct mmc_host *hos
ocr &= ~0x7F;
}
+ if ((ocr & MMC_VDD_165_195) && !(host->caps & MMC_CAP_VDD_165_195)) {
+ printk(KERN_WARNING "%s: SDIO card claims to support the "
+ "incompletely defined 'low voltage range'. This "
+ "will be ignored.\n", mmc_hostname(host));
+ ocr &= ~MMC_VDD_165_195;
+ }
+
host->ocr = mmc_select_voltage(host, ocr);
/*
diff -puN include/linux/mmc/host.h~sdio-add-mmc_cap_vdd_165_195-host-capability include/linux/mmc/host.h
--- a/include/linux/mmc/host.h~sdio-add-mmc_cap_vdd_165_195-host-capability
+++ a/include/linux/mmc/host.h
@@ -150,6 +150,7 @@ struct mmc_host {
#define MMC_CAP_DISABLE (1 << 7) /* Can the host be disabled */
#define MMC_CAP_NONREMOVABLE (1 << 8) /* Nonremovable e.g. eMMC */
#define MMC_CAP_WAIT_WHILE_BUSY (1 << 9) /* Waits while card is busy */
+#define MMC_CAP_VDD_165_195 (1 << 10) /* Accepts MMC_VDD_165_195 */
/* host specific block data */
unsigned int max_seg_size; /* see blk_queue_max_segment_size */
_
Patches currently in -mm which might be from ohad@xxxxxxxxxx are
sdio-add-mmc_cap_vdd_165_195-host-capability.patch
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