From: Jaehoon Chung <jh80.chung@samsung.com>
To: linux-mmc <linux-mmc@vger.kernel.org>
Cc: Chris Ball <cjb@laptop.org>,
Kyungmin Park <kyungmin.park@samsung.com>,
Will Newton <will.newton@imgtec.com>,
James Hogan <James.Hogan@imgtec.com>,
Seungwon Jeon <tgih.jun@samsung.com>
Subject: [PATCH v3 1/4] mmc: dw-mmc: relocate the position called dw_mci_setup_bus()
Date: Thu, 08 Nov 2012 17:35:29 +0900 [thread overview]
Message-ID: <509B6ED1.7030707@samsung.com> (raw)
To ensure the stable clock need to enable before set the DW_MMC_CARD_NEED_INIT flag.
If set DW_MMC_CARD_NEED_INIT flag, wait for 80-clock before first command after power-up.
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Seungwon Jeon <tgih.jun@samsung.com>
---
Changelog v2-v3:
- Modified the commit-message
drivers/mmc/host/dw_mmc.c | 6 +++---
1 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index c0667c8..a1369aa 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -683,9 +683,6 @@ static void __dw_mci_start_request(struct dw_mci *host,
if (host->pdata->select_slot)
host->pdata->select_slot(slot->id);
- /* Slot specific timing and width adjustment */
- dw_mci_setup_bus(slot);
-
host->cur_slot = slot;
host->mrq = mrq;
@@ -812,6 +809,9 @@ static void dw_mci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
if (drv_data && drv_data->set_ios)
drv_data->set_ios(slot->host, ios);
+ /* Slot specific timing and width adjustment */
+ dw_mci_setup_bus(slot);
+
switch (ios->power_mode) {
case MMC_POWER_UP:
set_bit(DW_MMC_CARD_NEED_INIT, &slot->flags);
--
1.7.4.1
next reply other threads:[~2012-11-08 8:35 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-08 8:35 Jaehoon Chung [this message]
2012-11-22 8:09 ` [PATCH v3 1/4] mmc: dw-mmc: relocate the position called dw_mci_setup_bus() Jaehoon Chung
2012-11-27 7:58 ` Seungwon Jeon
2012-11-27 23:44 ` Jaehoon Chung
2012-12-03 10:33 ` Will Newton
2012-12-03 19:44 ` Chris Ball
2012-12-04 4:03 ` Jaehoon Chung
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