From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jaehoon Chung Subject: Re: [PATCH 1/3] mmc: core: Add DT bindings for SD card's UHS bus speed modes Date: Mon, 17 Feb 2014 15:55:54 +0900 Message-ID: <5301B27A.5080005@samsung.com> References: <1392380829-8473-1-git-send-email-ulf.hansson@linaro.org> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Return-path: Received: from mailout4.samsung.com ([203.254.224.34]:45773 "EHLO mailout4.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750905AbaBQGzn (ORCPT ); Mon, 17 Feb 2014 01:55:43 -0500 In-reply-to: <1392380829-8473-1-git-send-email-ulf.hansson@linaro.org> Sender: linux-mmc-owner@vger.kernel.org List-Id: linux-mmc@vger.kernel.org To: Ulf Hansson , linux-mmc@vger.kernel.org, Chris Ball Cc: Jaehoon Chung , devicetree@vger.kernel.org Acked-by: Jaehoon Chung Best Regards, Jaehoon Chung On 02/14/2014 09:27 PM, Ulf Hansson wrote: > Provide the option to configure these speed modes per host, for those > host driver's that can't distinguish this in runtime. > > Signed-off-by: Ulf Hansson > --- > Documentation/devicetree/bindings/mmc/mmc.txt | 5 +++++ > drivers/mmc/core/host.c | 10 ++++++++++ > 2 files changed, 15 insertions(+) > > diff --git a/Documentation/devicetree/bindings/mmc/mmc.txt b/Documentation/devicetree/bindings/mmc/mmc.txt > index 458b57f..bd2ce67 100644 > --- a/Documentation/devicetree/bindings/mmc/mmc.txt > +++ b/Documentation/devicetree/bindings/mmc/mmc.txt > @@ -26,6 +26,11 @@ Optional properties: > this system, even if the controller claims it is. > - cap-sd-highspeed: SD high-speed timing is supported > - cap-mmc-highspeed: MMC high-speed timing is supported > +- sd-uhs-sdr12: SD UHS SDR12 speed is supported > +- sd-uhs-sdr25: SD UHS SDR25 speed is supported > +- sd-uhs-sdr50: SD UHS SDR50 speed is supported > +- sd-uhs-sdr104: SD UHS SDR104 speed is supported > +- sd-uhs-ddr50: SD UHS DDR50 speed is supported > - cap-power-off-card: powering off the card is safe > - cap-sdio-irq: enable SDIO IRQ signalling on this interface > - full-pwr-cycle: full power cycle of the card is supported > diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c > index 49bc403..2644d91 100644 > --- a/drivers/mmc/core/host.c > +++ b/drivers/mmc/core/host.c > @@ -419,6 +419,16 @@ int mmc_of_parse(struct mmc_host *host) > host->caps |= MMC_CAP_SD_HIGHSPEED; > if (of_find_property(np, "cap-mmc-highspeed", &len)) > host->caps |= MMC_CAP_MMC_HIGHSPEED; > + if (of_find_property(np, "sd-uhs-sdr12", &len)) > + host->caps |= MMC_CAP_UHS_SDR12; > + if (of_find_property(np, "sd-uhs-sdr25", &len)) > + host->caps |= MMC_CAP_UHS_SDR25; > + if (of_find_property(np, "sd-uhs-sdr50", &len)) > + host->caps |= MMC_CAP_UHS_SDR50; > + if (of_find_property(np, "sd-uhs-sdr104", &len)) > + host->caps |= MMC_CAP_UHS_SDR104; > + if (of_find_property(np, "sd-uhs-ddr50", &len)) > + host->caps |= MMC_CAP_UHS_DDR50; > if (of_find_property(np, "cap-power-off-card", &len)) > host->caps |= MMC_CAP_POWER_OFF_CARD; > if (of_find_property(np, "cap-sdio-irq", &len)) >