linux-kernel - [PATCH] mmc: dw_mmc: exynos: Turn SDIO interrupts on

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Message-Id: <1365698338-27503-1-git-send-email-dianders@chromium.org>
Date:	Thu, 11 Apr 2013 09:38:58 -0700
From:	Doug Anderson <dianders@...omium.org>
To:	Chris Ball <cjb@...top.org>
Cc:	Thomas Abraham <thomas.abraham@...aro.org>,
	Bing Zhao <bzhao@...vell.com>,
	Jaehoon Chung <jh80.chung@...sung.com>,
	Seungwon Jeon <tgih.jun@...sung.com>,
	Sachin Kamat <sachin.kamat@...aro.org>,
	Olof Johansson <olof@...om.net>,
	Doug Anderson <dianders@...omium.org>,
	linux-mmc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] mmc: dw_mmc: exynos: Turn SDIO interrupts on

The mmc part in exynos supports SDIO interrupts and they work fine, so
turn the capability on.  With this I see download speeds increase
about 10x.  This is a port of a change present in the Chrome OS tree
that can be found at <https://gerrit.chromium.org/gerrit/#/c/26729/>.

Signed-off-by: Doug Anderson <dianders@...omium.org>
---
 drivers/mmc/host/dw_mmc-exynos.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/dw_mmc-exynos.c b/drivers/mmc/host/dw_mmc-exynos.c
index c7f0976..3a227be 100644
--- a/drivers/mmc/host/dw_mmc-exynos.c
+++ b/drivers/mmc/host/dw_mmc-exynos.c
@@ -192,10 +192,10 @@ static int dw_mci_exynos_setup_bus(struct dw_mci *host,
 /* Common capabilities of Exynos4/Exynos5 SoC */
 static unsigned long exynos_dwmmc_caps[4] = {
 	MMC_CAP_UHS_DDR50 | MMC_CAP_1_8V_DDR |
-		MMC_CAP_8_BIT_DATA | MMC_CAP_CMD23,
-	MMC_CAP_CMD23,
-	MMC_CAP_CMD23,
-	MMC_CAP_CMD23,
+		MMC_CAP_8_BIT_DATA | MMC_CAP_CMD23 | MMC_CAP_SDIO_IRQ,
+	MMC_CAP_CMD23 | MMC_CAP_SDIO_IRQ,
+	MMC_CAP_CMD23 | MMC_CAP_SDIO_IRQ,
+	MMC_CAP_CMD23 | MMC_CAP_SDIO_IRQ,
 };
 
 static const struct dw_mci_drv_data exynos_drv_data = {
-- 
1.8.1.3

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