From: Ulf Hansson <ulf.hansson@stericsson.com>
To: linux-mmc@vger.kernel.org, Chris Ball <cjb@laptop.org>
Cc: Ulf Hansson <ulf.hansson@linaro.org>
Subject: [PATCH 11/12] mmc: core: Invent MMC_CAP2_FULL_PWR_CYCLE
Date: Mon, 10 Jun 2013 17:03:46 +0200 [thread overview]
Message-ID: <1370876627-13439-12-git-send-email-ulf.hansson@stericsson.com> (raw)
In-Reply-To: <1370876627-13439-1-git-send-email-ulf.hansson@stericsson.com>
From: Ulf Hansson <ulf.hansson@linaro.org>
MMC_CAP2_FULL_PWR_CYCLE shall be set by host drivers which are able to
do a complete power cycle of the card. In the eMMC case that includes
both vcc and vccq.
This CAP is providing the protocol layer with important information,
needed to take optimized decisions during card initialization and in
the suspend/resume sequence.
MMC_CAP2_POWEROFF_NOTIFY is replaced by MMC_CAP2_FULL_PWR_CYCLE, since
it makes sense to use a wider scope for it.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
drivers/mmc/core/mmc.c | 2 +-
include/linux/mmc/host.h | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index a96dcaa..38315f8 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -1484,7 +1484,7 @@ static int _mmc_suspend(struct mmc_host *host, bool is_suspend)
goto out;
if (mmc_can_poweroff_notify(host->card) &&
- ((host->caps2 & MMC_CAP2_POWEROFF_NOTIFY) || !is_suspend))
+ ((host->caps2 & MMC_CAP2_FULL_PWR_CYCLE) || !is_suspend))
err = mmc_poweroff_notify(host->card, notify_type);
else if (mmc_can_sleep(host->card))
err = mmc_sleep(host);
diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h
index 2e34ee5..c6dedc7 100644
--- a/include/linux/mmc/host.h
+++ b/include/linux/mmc/host.h
@@ -264,7 +264,7 @@ struct mmc_host {
#define MMC_CAP2_BOOTPART_NOACC (1 << 0) /* Boot partition no access */
#define MMC_CAP2_CACHE_CTRL (1 << 1) /* Allow cache control */
-#define MMC_CAP2_POWEROFF_NOTIFY (1 << 2) /* Notify poweroff supported */
+#define MMC_CAP2_FULL_PWR_CYCLE (1 << 2) /* Can do full power cycle */
#define MMC_CAP2_NO_MULTI_READ (1 << 3) /* Multiblock reads don't work */
#define MMC_CAP2_NO_SLEEP_CMD (1 << 4) /* Don't allow sleep command */
#define MMC_CAP2_HS200_1_8V_SDR (1 << 5) /* can support */
--
1.7.10
next prev parent reply other threads:[~2013-06-10 15:04 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-10 15:03 [PATCH 00/12] mmc: core: mmc_bus to handle suspend|resume|shutdown Ulf Hansson
2013-06-10 15:03 ` [PATCH 01/12] mmc: core: Remove unnecessary check for the remove callback Ulf Hansson
2013-06-10 15:03 ` [PATCH 02/12] mmc: core: Validate suspend prerequisites for SDIO at SUSPEND_PREPARE Ulf Hansson
2013-06-10 15:03 ` [PATCH 03/12] mmc: core: Push common suspend|resume code into each bus_ops Ulf Hansson
2013-06-10 15:03 ` [PATCH 04/12] mmc: core: Initiate suspend|resume from mmc bus instead of mmc host Ulf Hansson
2013-06-10 15:03 ` [PATCH 05/12] mmc: core: Handle card shutdown from mmc_bus Ulf Hansson
2013-06-10 15:03 ` [PATCH 06/12] mmc: core: Extend shutdown sequence to handle bus operations Ulf Hansson
2013-06-10 15:03 ` [PATCH 07/12] mmc: core: Add shutdown callback for SD bus_ops Ulf Hansson
2013-06-10 15:03 ` [PATCH 08/12] mmc: core: Handle both poweroff notification types for eMMC Ulf Hansson
2013-06-10 15:03 ` [PATCH 09/12] mmc: core: Add shutdown callback for (e)MMC bus_ops Ulf Hansson
2013-06-10 15:03 ` [PATCH 10/12] mmc: core: Enable power_off_notify for eMMC shutdown sequence Ulf Hansson
2013-06-10 15:03 ` Ulf Hansson [this message]
2013-06-10 15:03 ` [PATCH 12/12] mmc: core: Add DT-bindings for MMC_CAP2_FULL_PWR_CYCLE Ulf Hansson
2013-06-11 9:24 ` [PATCH 00/12] mmc: core: mmc_bus to handle suspend|resume|shutdown Linus Walleij
2013-06-12 8:15 ` Pierre Ossman
2013-06-27 15:43 ` Chris Ball
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