Message ID | 1485357143-23280-7-git-send-email-ulf.hansson@linaro.org |
---|---|
State | New |
Headers | show |
Series | mmc: core: Enable mmc hosts to specify support for eMMC DDR 3.3V | expand |
diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c index 98f25ff..8f75a84 100644 --- a/drivers/mmc/core/host.c +++ b/drivers/mmc/core/host.c @@ -301,6 +301,8 @@ int mmc_of_parse(struct mmc_host *host) if (of_property_read_bool(np, "wakeup-source") || of_property_read_bool(np, "enable-sdio-wakeup")) /* legacy */ host->pm_caps |= MMC_PM_WAKE_SDIO_IRQ; + if (of_property_read_bool(np, "mmc-ddr-3_3v")) + host->caps |= MMC_CAP_3_3V_DDR; if (of_property_read_bool(np, "mmc-ddr-1_8v")) host->caps |= MMC_CAP_1_8V_DDR; if (of_property_read_bool(np, "mmc-ddr-1_2v"))
When mmc_of_parse() finds the binding, it sets the mmc cap, MMC_CAP_3_3V_DDR, which informs the core whether eMMC DDR at 3.3V I/O is supported by the mmc host. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> --- drivers/mmc/core/host.c | 2 ++ 1 file changed, 2 insertions(+) -- 1.9.1