Messages in this thread Patch in this message | | | From | Shawn Lin <> | Subject | [RFC PATCH 3/4] mmc: core: add cap-no-sd and cap-no-mmc properties | Date | Wed, 8 Jun 2016 16:20:57 +0800 |
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Introduce cap-no-sd and cap-no-mmc properties to skip sending sd and mmc commands during initialization respectively.
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com> ---
drivers/mmc/core/host.c | 4 ++++ include/linux/mmc/host.h | 2 ++ 2 files changed, 6 insertions(+)
diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c index 933eeea..c760097 100644 --- a/drivers/mmc/core/host.c +++ b/drivers/mmc/core/host.c @@ -298,6 +298,10 @@ int mmc_of_parse(struct mmc_host *host) host->caps2 |= MMC_CAP2_FULL_PWR_CYCLE; if (of_property_read_bool(np, "cap-no-sdio")) host->caps2 |= MMC_CAP2_NO_SDIO; + if (of_property_read_bool(np, "cap-no-sd")) + host->caps2 |= MMC_CAP2_NO_SD; + if (of_property_read_bool(np, "cap-no-mmc")) + host->caps2 |= MMC_CAP2_NO_MMC; if (of_property_read_bool(np, "keep-power-in-suspend")) host->pm_caps |= MMC_PM_KEEP_POWER; if (of_property_read_bool(np, "wakeup-source") || diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h index d72c0c3..1bd77c7 100644 --- a/include/linux/mmc/host.h +++ b/include/linux/mmc/host.h @@ -309,6 +309,8 @@ struct mmc_host { #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 */ +#define MMC_CAP2_NO_SD (1 << 21) /* Do not send SD commands during initialization */ +#define MMC_CAP2_NO_MMC (1 << 22) /* Do not send MMC commands during initialization */ mmc_pm_flag_t pm_caps; /* supported pm features */ -- 2.3.7
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