From: Wei Ni <wni@nvidia.com>
To: <grant.likely@linaro.org>, <rob@landley.net>,
<rob.herring@calxeda.com>, <cjb@laptop.org>
Cc: <devicetree-discuss@lists.ozlabs.org>,
<linux-doc@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<linux-mmc@vger.kernel.org>, <linuxppc-dev@lists.ozlabs.org>,
Wei Ni <wni@nvidia.com>
Subject: [PATCH] mmc: dt: add host-off-card-on dt property
Date: Thu, 11 Jul 2013 17:15:29 +0800 [thread overview]
Message-ID: <1373534129-9017-1-git-send-email-wni@nvidia.com> (raw)
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
WARNING: multiple messages have this Message-ID (diff)
From: Wei Ni <wni@nvidia.com>
To: grant.likely@linaro.org, rob@landley.net,
rob.herring@calxeda.com, cjb@laptop.org
Cc: devicetree-discuss@lists.ozlabs.org, linux-doc@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-mmc@vger.kernel.org,
linuxppc-dev@lists.ozlabs.org, Wei Ni <wni@nvidia.com>
Subject: [PATCH] mmc: dt: add host-off-card-on dt property
Date: Thu, 11 Jul 2013 17:15:29 +0800 [thread overview]
Message-ID: <1373534129-9017-1-git-send-email-wni@nvidia.com> (raw)
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
WARNING: multiple messages have this Message-ID (diff)
From: Wei Ni <wni@nvidia.com>
To: <grant.likely@linaro.org>, <rob@landley.net>,
<rob.herring@calxeda.com>, <cjb@laptop.org>
Cc: Wei Ni <wni@nvidia.com>,
linux-doc@vger.kernel.org, devicetree-discuss@lists.ozlabs.org,
linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org,
linuxppc-dev@lists.ozlabs.org
Subject: [PATCH] mmc: dt: add host-off-card-on dt property
Date: Thu, 11 Jul 2013 17:15:29 +0800 [thread overview]
Message-ID: <1373534129-9017-1-git-send-email-wni@nvidia.com> (raw)
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
next reply other threads:[~2013-07-11 9:16 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-11 9:15 Wei Ni [this message]
2013-07-11 9:15 ` [PATCH] mmc: dt: add host-off-card-on dt property Wei Ni
2013-07-11 9:15 ` Wei Ni
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