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-rw-r--r--Documentation/devicetree/bindings/mmc/mmc.txt4
-rw-r--r--drivers/mmc/core/host.c13
2 files changed, 17 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mmc/mmc.txt b/Documentation/devicetree/bindings/mmc/mmc.txt
index 654b705fc5b7..85aada2263d5 100644
--- a/Documentation/devicetree/bindings/mmc/mmc.txt
+++ b/Documentation/devicetree/bindings/mmc/mmc.txt
@@ -24,6 +24,10 @@ Optional properties:
24- max-frequency: maximum operating clock frequency 24- max-frequency: maximum operating clock frequency
25- no-1-8-v: when present, denotes that 1.8v card voltage is not supported on 25- no-1-8-v: when present, denotes that 1.8v card voltage is not supported on
26 this system, even if the controller claims it is. 26 this system, even if the controller claims it is.
27- cap-sd-highspeed: SD high-speed timing is supported
28- cap-mmc-highspeed: MMC high-speed timing is supported
29- cap-power-off-card: powering off the card is safe
30- cap-sdio-irq: enable SDIO IRQ signalling on this interface
27 31
28*NOTE* on CD and WP polarity. To use common for all SD/MMC host controllers line 32*NOTE* on CD and WP polarity. To use common for all SD/MMC host controllers line
29polarity properties, we have to fix the meaning of the "normal" and "inverted" 33polarity properties, we have to fix the meaning of the "normal" and "inverted"
diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c
index 9c53452e73e1..821cd8224137 100644
--- a/drivers/mmc/core/host.c
+++ b/drivers/mmc/core/host.c
@@ -400,6 +400,19 @@ void mmc_of_parse(struct mmc_host *host)
400 } 400 }
401 if (explicit_inv_wp ^ gpio_inv_wp) 401 if (explicit_inv_wp ^ gpio_inv_wp)
402 host->caps2 |= MMC_CAP2_RO_ACTIVE_HIGH; 402 host->caps2 |= MMC_CAP2_RO_ACTIVE_HIGH;
403
404 if (of_find_property(np, "cap-sd-highspeed", &len))
405 host->caps |= MMC_CAP_SD_HIGHSPEED;
406 if (of_find_property(np, "cap-mmc-highspeed", &len))
407 host->caps |= MMC_CAP_MMC_HIGHSPEED;
408 if (of_find_property(np, "cap-power-off-card", &len))
409 host->caps |= MMC_CAP_POWER_OFF_CARD;
410 if (of_find_property(np, "cap-sdio-irq", &len))
411 host->caps |= MMC_CAP_SDIO_IRQ;
412 if (of_find_property(np, "keep-power-in-suspend", &len))
413 host->pm_caps |= MMC_PM_KEEP_POWER;
414 if (of_find_property(np, "enable-sdio-wakeup", &len))
415 host->pm_caps |= MMC_PM_WAKE_SDIO_IRQ;
403} 416}
404 417
405EXPORT_SYMBOL(mmc_of_parse); 418EXPORT_SYMBOL(mmc_of_parse);