* [PATCH] mmc: dt: add host-off-card-on dt property
@ 2013-07-11 9:15 ` Wei Ni
0 siblings, 0 replies; 3+ messages in thread
From: Wei Ni @ 2013-07-11 9:15 UTC (permalink / raw)
To: grant.likely, rob, rob.herring, cjb
Cc: devicetree-discuss, linux-doc, linux-kernel, linux-mmc,
linuxppc-dev, Wei Ni
Add "host-off-card-on" dt property and parse it to support the
quirk SDHCI_QUIRK2_HOST_OFF_CARD_ON.
Signed-off-by: Wei Ni <wni@nvidia.com>
---
Documentation/devicetree/bindings/mmc/mmc.txt | 2 ++
drivers/mmc/host/sdhci-pltfm.c | 3 +++
2 files changed, 5 insertions(+)
diff --git a/Documentation/devicetree/bindings/mmc/mmc.txt b/Documentation/devicetree/bindings/mmc/mmc.txt
index 85aada2..95ebe3e 100644
--- a/Documentation/devicetree/bindings/mmc/mmc.txt
+++ b/Documentation/devicetree/bindings/mmc/mmc.txt
@@ -28,6 +28,8 @@ Optional properties:
- cap-mmc-highspeed: MMC high-speed timing is supported
- cap-power-off-card: powering off the card is safe
- cap-sdio-irq: enable SDIO IRQ signalling on this interface
+- host-off-card-on: when resume, denote that card keeps power
+ but host controller does not, so that it will reset sdhci all.
*NOTE* on CD and WP polarity. To use common for all SD/MMC host controllers line
polarity properties, we have to fix the meaning of the "normal" and "inverted"
diff --git a/drivers/mmc/host/sdhci-pltfm.c b/drivers/mmc/host/sdhci-pltfm.c
index cd0f1f6..b3730cc 100644
--- a/drivers/mmc/host/sdhci-pltfm.c
+++ b/drivers/mmc/host/sdhci-pltfm.c
@@ -89,6 +89,9 @@ void sdhci_get_of_property(struct platform_device *pdev)
if (of_get_property(np, "no-1-8-v", NULL))
host->quirks2 |= SDHCI_QUIRK2_NO_1_8_V;
+ if (of_get_property(np, "host-off-card-on", NULL))
+ host->quirks2 |= SDHCI_QUIRK2_HOST_OFF_CARD_ON;
+
if (of_device_is_compatible(np, "fsl,p2020-rev1-esdhc"))
host->quirks |= SDHCI_QUIRK_BROKEN_DMA;
--
1.7.9.5
^ permalink raw reply related [flat|nested] 3+ messages in thread
* [PATCH] mmc: dt: add host-off-card-on dt property
@ 2013-07-11 9:15 ` Wei Ni
0 siblings, 0 replies; 3+ messages in thread
From: Wei Ni @ 2013-07-11 9:15 UTC (permalink / raw)
To: grant.likely, rob, rob.herring, cjb
Cc: devicetree-discuss, linux-doc, linux-kernel, linux-mmc,
linuxppc-dev, Wei Ni
Add "host-off-card-on" dt property and parse it to support the
quirk SDHCI_QUIRK2_HOST_OFF_CARD_ON.
Signed-off-by: Wei Ni <wni@nvidia.com>
---
Documentation/devicetree/bindings/mmc/mmc.txt | 2 ++
drivers/mmc/host/sdhci-pltfm.c | 3 +++
2 files changed, 5 insertions(+)
diff --git a/Documentation/devicetree/bindings/mmc/mmc.txt b/Documentation/devicetree/bindings/mmc/mmc.txt
index 85aada2..95ebe3e 100644
--- a/Documentation/devicetree/bindings/mmc/mmc.txt
+++ b/Documentation/devicetree/bindings/mmc/mmc.txt
@@ -28,6 +28,8 @@ Optional properties:
- cap-mmc-highspeed: MMC high-speed timing is supported
- cap-power-off-card: powering off the card is safe
- cap-sdio-irq: enable SDIO IRQ signalling on this interface
+- host-off-card-on: when resume, denote that card keeps power
+ but host controller does not, so that it will reset sdhci all.
*NOTE* on CD and WP polarity. To use common for all SD/MMC host controllers line
polarity properties, we have to fix the meaning of the "normal" and "inverted"
diff --git a/drivers/mmc/host/sdhci-pltfm.c b/drivers/mmc/host/sdhci-pltfm.c
index cd0f1f6..b3730cc 100644
--- a/drivers/mmc/host/sdhci-pltfm.c
+++ b/drivers/mmc/host/sdhci-pltfm.c
@@ -89,6 +89,9 @@ void sdhci_get_of_property(struct platform_device *pdev)
if (of_get_property(np, "no-1-8-v", NULL))
host->quirks2 |= SDHCI_QUIRK2_NO_1_8_V;
+ if (of_get_property(np, "host-off-card-on", NULL))
+ host->quirks2 |= SDHCI_QUIRK2_HOST_OFF_CARD_ON;
+
if (of_device_is_compatible(np, "fsl,p2020-rev1-esdhc"))
host->quirks |= SDHCI_QUIRK_BROKEN_DMA;
--
1.7.9.5
^ permalink raw reply related [flat|nested] 3+ messages in thread
* [PATCH] mmc: dt: add host-off-card-on dt property
@ 2013-07-11 9:15 ` Wei Ni
0 siblings, 0 replies; 3+ messages in thread
From: Wei Ni @ 2013-07-11 9:15 UTC (permalink / raw)
To: grant.likely, rob, rob.herring, cjb
Cc: Wei Ni, linux-doc, devicetree-discuss, linux-mmc, linux-kernel,
linuxppc-dev
Add "host-off-card-on" dt property and parse it to support the
quirk SDHCI_QUIRK2_HOST_OFF_CARD_ON.
Signed-off-by: Wei Ni <wni@nvidia.com>
---
Documentation/devicetree/bindings/mmc/mmc.txt | 2 ++
drivers/mmc/host/sdhci-pltfm.c | 3 +++
2 files changed, 5 insertions(+)
diff --git a/Documentation/devicetree/bindings/mmc/mmc.txt b/Documentation/devicetree/bindings/mmc/mmc.txt
index 85aada2..95ebe3e 100644
--- a/Documentation/devicetree/bindings/mmc/mmc.txt
+++ b/Documentation/devicetree/bindings/mmc/mmc.txt
@@ -28,6 +28,8 @@ Optional properties:
- cap-mmc-highspeed: MMC high-speed timing is supported
- cap-power-off-card: powering off the card is safe
- cap-sdio-irq: enable SDIO IRQ signalling on this interface
+- host-off-card-on: when resume, denote that card keeps power
+ but host controller does not, so that it will reset sdhci all.
*NOTE* on CD and WP polarity. To use common for all SD/MMC host controllers line
polarity properties, we have to fix the meaning of the "normal" and "inverted"
diff --git a/drivers/mmc/host/sdhci-pltfm.c b/drivers/mmc/host/sdhci-pltfm.c
index cd0f1f6..b3730cc 100644
--- a/drivers/mmc/host/sdhci-pltfm.c
+++ b/drivers/mmc/host/sdhci-pltfm.c
@@ -89,6 +89,9 @@ void sdhci_get_of_property(struct platform_device *pdev)
if (of_get_property(np, "no-1-8-v", NULL))
host->quirks2 |= SDHCI_QUIRK2_NO_1_8_V;
+ if (of_get_property(np, "host-off-card-on", NULL))
+ host->quirks2 |= SDHCI_QUIRK2_HOST_OFF_CARD_ON;
+
if (of_device_is_compatible(np, "fsl,p2020-rev1-esdhc"))
host->quirks |= SDHCI_QUIRK_BROKEN_DMA;
--
1.7.9.5
^ permalink raw reply related [flat|nested] 3+ messages in thread
end of thread, other threads:[~2013-07-11 9:16 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2013-07-11 9:15 [PATCH] mmc: dt: add host-off-card-on dt property Wei Ni
2013-07-11 9:15 ` Wei Ni
2013-07-11 9:15 ` Wei Ni
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