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mmc: core: Add DT bindings for eMMC high-speed DDR 1.8/1.2V

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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 <ulf.hansson@linaro.org>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Chris Ball <chris@printf.net>
This commit is contained in:
Ulf Hansson
2014-02-14 13:27:08 +01:00
committed by Chris Ball
parent b66bd0e4d0
commit c0baf84859
2 changed files with 6 additions and 0 deletions
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4
drivers/mmc/core/host.c
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@@ -439,6 +439,10 @@ int mmc_of_parse(struct mmc_host *host)
host->pm_caps |= MMC_PM_KEEP_POWER;
if (of_find_property(np, "enable-sdio-wakeup", &len))
host->pm_caps |= MMC_PM_WAKE_SDIO_IRQ;
if (of_find_property(np, "mmc-ddr-1_8v", &len))
host->caps |= MMC_CAP_1_8V_DDR;
if (of_find_property(np, "mmc-ddr-1_2v", &len))
host->caps |= MMC_CAP_1_2V_DDR;
return 0;