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From: Gregory CLEMENT <gregory.clement@free-electrons.com>
To: Ulf Hansson <ulf.hansson@linaro.org>,
	Adrian Hunter <adrian.hunter@intel.com>,
	linux-mmc@vger.kernel.org
Cc: Rob Herring <robh+dt@kernel.org>,
	devicetree@vger.kernel.org, Jason Cooper <jason@lakedaemon.net>,
	Andrew Lunn <andrew@lunn.ch>,
	Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>,
	Gregory CLEMENT <gregory.clement@free-electrons.com>,
	Thomas Petazzoni <thomas.petazzoni@free-electrons.com>,
	linux-arm-kernel@lists.infradead.org,
	Nadav Haklai <nadavh@marvell.com>, Victor Gu <xigu@marvell.com>,
	Romain Perier <romain.perier@free-electrons.com>,
	Omri Itach <omrii@marvell.com>, Marcin Wojtas <mw@semihalf.com>,
	Wilson Ding <dingwei@marvell.com>,
	Shadi Ammouri <shadi@marvell.com>
Subject: [PATCH 07/12] mmc: core: export the alive operation
Date: Thu,  9 Jun 2016 09:10:13 +0200	[thread overview]
Message-ID: <1465456218-28354-8-git-send-email-gregory.clement@free-electrons.com> (raw)
In-Reply-To: <1465456218-28354-1-git-send-email-gregory.clement@free-electrons.com>

Depending of the type of card there is a different operation to know
if the  car is alive. However, the access to this operation are private.
This patch introduce a new function allowing to know if the card is alive
by using the appropriate operation.

Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
---
 drivers/mmc/core/core.c  | 7 +++++++
 include/linux/mmc/card.h | 1 +
 2 files changed, 8 insertions(+)

diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index 8b4dfd45433b..3dce095c5f89 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -2464,6 +2464,13 @@ int mmc_hw_reset(struct mmc_host *host)
 }
 EXPORT_SYMBOL(mmc_hw_reset);
 
+
+int card_alive(struct mmc_card *card)
+{
+	return card->host->bus_ops->alive(card->host);
+}
+EXPORT_SYMBOL(card_alive);
+
 static int mmc_rescan_try_freq(struct mmc_host *host, unsigned freq)
 {
 	host->f_init = freq;
diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h
index eb0151bac50c..287a0b12d8ba 100644
--- a/include/linux/mmc/card.h
+++ b/include/linux/mmc/card.h
@@ -526,6 +526,7 @@ struct mmc_driver {
 	void (*shutdown)(struct mmc_card *);
 };
 
+extern int card_alive(struct mmc_card *);
 extern int mmc_register_driver(struct mmc_driver *);
 extern void mmc_unregister_driver(struct mmc_driver *);
 
-- 
2.5.0


  parent reply	other threads:[~2016-06-09  7:10 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-06-09  7:10 [PATCH 00/12] Add SDHCI Xenon driver Gregory CLEMENT
     [not found] ` <1465456218-28354-1-git-send-email-gregory.clement-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
2016-06-09  7:10   ` [PATCH 01/12] mmc: sdhci: add init_card callback to sdhci Gregory CLEMENT
2016-06-13  8:32     ` Adrian Hunter
2016-06-14  7:58       ` Gregory CLEMENT
2016-06-09  7:10   ` [PATCH 10/12] arm64: dts: marvell: add eMMC support for Armada 37xx Gregory CLEMENT
2016-06-09  7:10 ` [PATCH 02/12] mmc: sdhci_f_sdh30: restrict voltage_switch() callback to the 1.8V case Gregory CLEMENT
2016-06-09  7:10 ` [PATCH 03/12] mmc: tegra: restrict the " Gregory CLEMENT
2016-06-09  9:54   ` Lucas Stach
2016-06-09 12:27     ` Gregory CLEMENT
2016-06-09  7:10 ` [PATCH 04/12] mmc: sdhci: call voltage_switch callback also for the 3.3V case Gregory CLEMENT
2016-06-09  7:10 ` [PATCH 05/12] mmc: sdhci: add a pre voltage switch callback function Gregory CLEMENT
     [not found]   ` <1465456218-28354-6-git-send-email-gregory.clement-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
2016-06-13  8:46     ` Adrian Hunter
     [not found]       ` <575E72DC.5090604-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2016-06-13 14:04         ` Ziji Hu
     [not found]           ` <D7CF8A19-9181-4A97-90AF-AC5A6517CE2B-eYqpPyKDWXRBDgjK7y7TUQ@public.gmane.org>
2016-06-14  7:07             ` Adrian Hunter
2016-06-14  7:59       ` Gregory CLEMENT
2016-06-09  7:10 ` [PATCH 06/12] mmc: sdhci: add delay adjust feature including phy reset Gregory CLEMENT
2016-06-09  7:10 ` Gregory CLEMENT [this message]
2016-06-09  7:10 ` [PATCH 08/12] dt-bindings: mmc: Add Xenon description Gregory CLEMENT
2016-06-10 14:16   ` Rob Herring
2016-06-14  8:02     ` Gregory CLEMENT
2016-06-09  7:10 ` [PATCH 09/12] mmc: sdhci-xenon: add initial Xenon eMMC driver Gregory CLEMENT
2016-06-09 13:45   ` kbuild test robot
2016-06-09 14:33     ` Gregory CLEMENT
2016-06-09 14:20   ` kbuild test robot
2016-06-09 14:54     ` Gregory CLEMENT
     [not found]       ` <87r3c6mmyp.fsf-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
2016-06-09 21:49         ` Arnd Bergmann
2016-06-14  6:52   ` Adrian Hunter
2016-06-14  8:19     ` Gregory CLEMENT
     [not found]       ` <878ty8chdr.fsf-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
2016-06-14  8:36         ` Adrian Hunter
2016-06-22 11:04           ` Ulf Hansson
2016-06-09  7:10 ` [PATCH 11/12] arm64: dts: marvell: add SDIO support for Armada 37xx Gregory CLEMENT
2016-06-09  7:10 ` [PATCH 12/12] arm64: defconfig: Add Xenon sdhci Gregory CLEMENT

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