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Subject[PATCH 3/4] mmc: host: sdhci-sprd: Add virtual command queue support
Date
Add virtual command queue support.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
---
drivers/mmc/host/Kconfig | 1 +
drivers/mmc/host/sdhci-sprd.c | 16 ++++++++++++++++
2 files changed, 17 insertions(+)

diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
index e2a12c3..851e947 100644
--- a/drivers/mmc/host/Kconfig
+++ b/drivers/mmc/host/Kconfig
@@ -619,6 +619,7 @@ config MMC_SDHCI_SPRD
depends on ARCH_SPRD
depends on MMC_SDHCI_PLTFM
select MMC_SDHCI_IO_ACCESSORS
+ select MMC_VIRTUAL_CQHCI
help
This selects the SDIO Host Controller in Spreadtrum
SoCs, this driver supports R11(IP version: R11P0).
diff --git a/drivers/mmc/host/sdhci-sprd.c b/drivers/mmc/host/sdhci-sprd.c
index 19a2104..ff4886a3 100644
--- a/drivers/mmc/host/sdhci-sprd.c
+++ b/drivers/mmc/host/sdhci-sprd.c
@@ -19,6 +19,7 @@
#include <linux/slab.h>

#include "sdhci-pltfm.h"
+#include "cqhci.h"

/* SDHCI_ARGUMENT2 register high 16bit */
#define SDHCI_SPRD_ARG2_STUFF GENMASK(31, 16)
@@ -515,6 +516,7 @@ static int sdhci_sprd_probe(struct platform_device *pdev)
{
struct sdhci_host *host;
struct sdhci_sprd_host *sprd_host;
+ struct cqhci_host *cqv_host;
struct clk *clk;
int ret = 0;

@@ -625,6 +627,17 @@ static int sdhci_sprd_probe(struct platform_device *pdev)

sprd_host->flags = host->flags;

+ cqv_host = devm_kzalloc(&pdev->dev,
+ sizeof(*cqv_host), GFP_KERNEL);
+ if (!cqv_host) {
+ ret = -ENOMEM;
+ goto err_cleanup_host;
+ }
+
+ ret = cqhci_virt_init(cqv_host, host->mmc);
+ if (ret)
+ goto err_cleanup_host;
+
ret = __sdhci_add_host(host);
if (ret)
goto err_cleanup_host;
@@ -685,6 +698,7 @@ static int sdhci_sprd_runtime_suspend(struct device *dev)
struct sdhci_host *host = dev_get_drvdata(dev);
struct sdhci_sprd_host *sprd_host = TO_SPRD_HOST(host);

+ cqhci_virt_suspend(host->mmc);
sdhci_runtime_suspend_host(host);

clk_disable_unprepare(sprd_host->clk_sdio);
@@ -713,6 +727,8 @@ static int sdhci_sprd_runtime_resume(struct device *dev)
goto clk_disable;

sdhci_runtime_resume_host(host, 1);
+ cqhci_virt_resume(host->mmc);
+
return 0;

clk_disable:
--
1.7.9.5
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