diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c index 1be42fab1a3051a77523abf093bb3cbf057bc32c..d7e86f9b3dab0ee185b262b9e6b88b94d3f9f33f 100644 --- a/drivers/mmc/core/host.c +++ b/drivers/mmc/core/host.c @@ -313,6 +313,8 @@ int mmc_of_parse(struct mmc_host *host) host->caps2 |= MMC_CAP2_HS400_1_8V | MMC_CAP2_HS200_1_8V_SDR; if (of_property_read_bool(np, "mmc-hs400-1_2v")) host->caps2 |= MMC_CAP2_HS400_1_2V | MMC_CAP2_HS200_1_2V_SDR; + if (of_property_read_bool(np, "mmc-hs400-enhanced-strobe")) + host->caps2 |= MMC_CAP2_HS400_ES; host->dsr_req = !of_property_read_u32(np, "dsr", &host->dsr); if (host->dsr_req && (host->dsr & ~0xffff)) { diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h index 45cde8cd39f2434f5f9ec02c702a91a7f6b971c9..b836a271e2dfbd8183f6472480e772b73140bc5c 100644 --- a/include/linux/mmc/host.h +++ b/include/linux/mmc/host.h @@ -302,6 +302,7 @@ struct mmc_host { #define MMC_CAP2_SDIO_IRQ_NOTHREAD (1 << 17) #define MMC_CAP2_NO_WRITE_PROTECT (1 << 18) /* No physical write protect pin, assume that card is always read-write */ #define MMC_CAP2_NO_SDIO (1 << 19) /* Do not send SDIO commands during initialization */ +#define MMC_CAP2_HS400_ES (1 << 20) /* Host supports enhanced strobe */ mmc_pm_flag_t pm_caps; /* supported pm features */