linux-kernel - [PATCH] mmc: mediatek: Add MMC_CAP_RUNTIME

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Date:	Tue, 22 Sep 2015 14:00:44 +0800
From:	Chaotian Jing <chaotian.jing@...iatek.com>
To:	Matthias Brugger <matthias.bgg@...il.com>
CC:	Ulf Hansson <ulf.hansson@...aro.org>, <linux-mmc@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-mediatek@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>,
	Daniel Kurtz <djkurtz@...omium.org>,
	<srv_heupstream@...iatek.com>,
	Chaotian Jing <chaotian.jing@...iatek.com>
Subject: [PATCH] mmc: mediatek: Add MMC_CAP_RUNTIME_RESUME support

Add MMC_CAP_RUNTIME_RESUME support to save resume time
Drop unnecessary SDC_ARG write

Signed-off-by: Chaotian Jing <chaotian.jing@...iatek.com>
---
 drivers/mmc/host/mtk-sd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mmc/host/mtk-sd.c b/drivers/mmc/host/mtk-sd.c
index 7153500..b2e89d3 100644
--- a/drivers/mmc/host/mtk-sd.c
+++ b/drivers/mmc/host/mtk-sd.c
@@ -729,7 +729,6 @@ static bool msdc_cmd_done(struct msdc_host *host, int events,
 			MSDC_INTEN_RSPCRCERR | MSDC_INTEN_CMDTMO |
 			MSDC_INTEN_ACMDRDY | MSDC_INTEN_ACMDCRCERR |
 			MSDC_INTEN_ACMDTMO);
-	writel(cmd->arg, host->base + SDC_ARG);
 
 	if (cmd->flags & MMC_RSP_PRESENT) {
 		if (cmd->flags & MMC_RSP_136) {
@@ -1302,6 +1301,7 @@ static int msdc_drv_probe(struct platform_device *pdev)
 	mmc->f_min = host->src_clk_freq / (4 * 255);
 
 	mmc->caps |= MMC_CAP_ERASE | MMC_CAP_CMD23;
+	mmc->caps |= MMC_CAP_RUNTIME_RESUME;
 	/* MMC core transfer sizes tunable parameters */
 	mmc->max_segs = MAX_BD_NUM;
 	mmc->max_seg_size = BDMA_DESC_BUFLEN;
-- 
1.8.1.1.dirty

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