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authorAdrian Hunter <adrian.hunter@intel.com>2020-03-06 19:38:42 +0530
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-09-09 19:12:33 +0200
commited48704c36a845de4accb50eac833cf2965146f7 (patch)
treecd1632fd022303446fc17d0d6e524fb7b57dbf33
parenta69047c01eb4eb5308ca1101b387ca990f0fce17 (diff)
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mmc: cqhci: Add cqhci_deactivate()
commit 0ffa6cfbd94982e6c028a8924b06a96c1b91bed8 upstream. Host controllers can reset CQHCI either directly or as a consequence of host controller reset. Add cqhci_deactivate() which puts the CQHCI driver into a state that is consistent with that. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Veerabhadrarao Badiganti <vbadigan@codeaurora.org> Link: https://lore.kernel.org/r/1583503724-13943-2-git-send-email-vbadigan@codeaurora.org Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/mmc/host/cqhci.c6
-rw-r--r--drivers/mmc/host/cqhci.h6
2 files changed, 8 insertions, 4 deletions
diff --git a/drivers/mmc/host/cqhci.c b/drivers/mmc/host/cqhci.c
index c19f4c3f115a..2d65b32d205a 100644
--- a/drivers/mmc/host/cqhci.c
+++ b/drivers/mmc/host/cqhci.c
@@ -299,16 +299,16 @@ static void __cqhci_disable(struct cqhci_host *cq_host)
cq_host->activated = false;
}
-int cqhci_suspend(struct mmc_host *mmc)
+int cqhci_deactivate(struct mmc_host *mmc)
{
struct cqhci_host *cq_host = mmc->cqe_private;
- if (cq_host->enabled)
+ if (cq_host->enabled && cq_host->activated)
__cqhci_disable(cq_host);
return 0;
}
-EXPORT_SYMBOL(cqhci_suspend);
+EXPORT_SYMBOL(cqhci_deactivate);
int cqhci_resume(struct mmc_host *mmc)
{
diff --git a/drivers/mmc/host/cqhci.h b/drivers/mmc/host/cqhci.h
index def76e9b5cac..437700179de4 100644
--- a/drivers/mmc/host/cqhci.h
+++ b/drivers/mmc/host/cqhci.h
@@ -230,7 +230,11 @@ irqreturn_t cqhci_irq(struct mmc_host *mmc, u32 intmask, int cmd_error,
int data_error);
int cqhci_init(struct cqhci_host *cq_host, struct mmc_host *mmc, bool dma64);
struct cqhci_host *cqhci_pltfm_init(struct platform_device *pdev);
-int cqhci_suspend(struct mmc_host *mmc);
+int cqhci_deactivate(struct mmc_host *mmc);
+static inline int cqhci_suspend(struct mmc_host *mmc)
+{
+ return cqhci_deactivate(mmc);
+}
int cqhci_resume(struct mmc_host *mmc);
#endif