From mboxrd@z Thu Jan 1 00:00:00 1970 From: Oded Gabbay Subject: [PATCH 3/3] MMC: FSL SDHC: Add support for hard-wired (permanent) card. Kernel version 3.4.47 Date: Sun, 2 Jun 2013 09:38:48 +0300 Message-ID: <1370155128-680-1-git-send-email-ogabbay@advaoptical.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: Sender: linux-mmc-owner@vger.kernel.org To: gregkh@linuxfoundation.org, cjb@laptop.org, grant.likely@secretlab.ca, rob@landley.net Cc: linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree-discuss@lists.ozlabs.org, linux-doc@vger.kernel.org, ogabbay@advaoptical.com List-Id: devicetree@vger.kernel.org This patch adds support of recognizing hard-wired (permanent) cards to Freescale's SDHC host driver. This is done by adding the option "fsl,card-wired" to the SDHC device-tree entry. Detection of this option is done in the probe function. Update documentation in file fsl-esdhc.txt Signed-off-by: Oded Gabbay --- Documentation/devicetree/bindings/mmc/fsl-esdhc.txt | 3 +++ drivers/mmc/host/sdhci-of-esdhc.c | 4 ++++ 2 files changed, 7 insertions(+) diff --git a/Documentation/devicetree/bindings/mmc/fsl-esdhc.txt b/Documentation/devicetree/bindings/mmc/fsl-esdhc.txt index 64bcb8b..6f0eefa 100644 --- a/Documentation/devicetree/bindings/mmc/fsl-esdhc.txt +++ b/Documentation/devicetree/bindings/mmc/fsl-esdhc.txt @@ -16,6 +16,9 @@ Required properties: only handle 1-bit data transfers. - sdhci,auto-cmd12: (optional) specifies that a controller can only handle auto CMD12. + - fsl,card-wired : (optional) specifies that the card is + a permanent card and should not be detected for insertion or + removal Example: diff --git a/drivers/mmc/host/sdhci-of-esdhc.c b/drivers/mmc/host/sdhci-of-esdhc.c index e70f22f..2f79ec2 100644 --- a/drivers/mmc/host/sdhci-of-esdhc.c +++ b/drivers/mmc/host/sdhci-of-esdhc.c @@ -222,6 +222,10 @@ static int __devinit sdhci_esdhc_probe(struct platform_device *pdev) host->quirks2 |= SDHCI_QUIRK2_BROKEN_HOST_CONTROL; } + /* If card is permanent, add capability of non-removable */ + if (of_get_property(np, "fsl,card-wired", NULL)) + host->mmc->caps |= MMC_CAP_NONREMOVABLE; + ret = sdhci_add_host(host); if (ret) sdhci_pltfm_free(pdev); -- 1.7.11.7