[RFC PATCH 2/4] mmc: core: add mmc-sleep-awake caps
From: Ritesh Harjani <hidden>
Date: 2017-02-20 08:04:05
Also in:
linux-arm-msm, linux-mmc, lkml
Subsystem:
multimedia card (mmc), secure digital (sd) and sdio subsystem, the rest · Maintainers:
Ulf Hansson, Linus Torvalds
This patch introduce mmc-sleep-awake for platforms which want to enable CMD5 awake & partial_init. Signed-off-by: Ritesh Harjani <redacted> --- drivers/mmc/core/host.c | 2 ++ include/linux/mmc/host.h | 1 + 2 files changed, 3 insertions(+)
diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c
index 3f8c85d..e798814 100644
--- a/drivers/mmc/core/host.c
+++ b/drivers/mmc/core/host.c@@ -320,6 +320,8 @@ int mmc_of_parse(struct mmc_host *host) host->caps2 |= MMC_CAP2_NO_SD; if (of_property_read_bool(np, "no-mmc")) host->caps2 |= MMC_CAP2_NO_MMC; + if (of_property_read_bool(np, "mmc-sleep-awake")) + host->caps2 |= MMC_CAP2_SLEEP_AWAKE; 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 83f1c4a..df7882b 100644
--- a/include/linux/mmc/host.h
+++ b/include/linux/mmc/host.h@@ -303,6 +303,7 @@ struct mmc_host { #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 (e)MMC commands during initialization */ +#define MMC_CAP2_SLEEP_AWAKE (1 << 23) /* Use Sleep/Awake (CMD5) */ mmc_pm_flag_t pm_caps; /* supported pm features */
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