Almost all the places, before calling hw_reset ops, the card type is checked
to make sure it is eMMC but missed during mmc_rescan_try_freq.
The below patch adds the check for card type before calling hardware reset
for init as double safety measure.
>From e7941c5b3b4999318feb59fa83b78c15c13493b3 Mon Sep 17 00:00:00 2001
From: Prasanna NAVARATNA <prasanna.navaratna@xxxxxxxxxxxx>
Date: Mon, 12 Aug 2013 12:26:57 +0530
Subject: [PATCH] mmc: core: add check for card type before
mmc_hw_reset_for_init
During mmc_hw_reset_for_init, the card type is not checked before
calling hw_reset ops.
Add check for the card type as emmc before issuing hw_reset during init.
Signed-off-by: Prasanna NAVARATNA <prasanna.navaratna@xxxxxxxxxxxx>
---
drivers/mmc/core/core.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index 49a5bca..2dad69a 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -2196,7 +2196,8 @@ EXPORT_SYMBOL(mmc_set_blockcount);
static void mmc_hw_reset_for_init(struct mmc_host *host)
{
- if (!(host->caps & MMC_CAP_HW_RESET) || !host->ops->hw_reset)
+ if (!(host->caps & MMC_CAP_HW_RESET) || !host->ops->hw_reset ||
+ !mmc_card_mmc(host->card))
return;
mmc_host_clk_hold(host);
host->ops->hw_reset(host);
--
1.7.6
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