linux-kernel - [PATCH 3.16.y-ckt 150/216] mmc: sdhci-pci-o2micro: Fix Dell E5440 issue

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Message-Id: <1421087394-2712-38-git-send-email-luis.henriques@canonical.com>
Date:	Mon, 12 Jan 2015 18:28:48 +0000
From:	Luis Henriques <luis.henriques@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Peter Guo <peter.guo@...hubtech.com>,
	Ulf Hansson <ulf.hansson@...aro.org>,
	Luis Henriques <luis.henriques@...onical.com>
Subject: [PATCH 3.16.y-ckt 150/216] mmc: sdhci-pci-o2micro: Fix Dell E5440 issue

3.16.7-ckt4 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Peter Guo <peter.guo@...hubtech.com>

commit 6380ea099cdd46d7377b6fbec0291cf2aa387bad upstream.

Fix Dell E5440 when reboot Linux, can't find o2micro sd host chip issue.

Fixes: 01acf6917aed (mmc: sdhci-pci: add support of O2Micro/BayHubTech SD hosts)
Signed-off-by: Peter Guo <peter.guo@...hubtech.com>
Signed-off-by: Ulf Hansson <ulf.hansson@...aro.org>
Signed-off-by: Luis Henriques <luis.henriques@...onical.com>
---
 drivers/mmc/host/sdhci-pci-o2micro.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/mmc/host/sdhci-pci-o2micro.c b/drivers/mmc/host/sdhci-pci-o2micro.c
index 5670e381b0cf..e2ec108dba0e 100644
--- a/drivers/mmc/host/sdhci-pci-o2micro.c
+++ b/drivers/mmc/host/sdhci-pci-o2micro.c
@@ -127,8 +127,6 @@ void sdhci_pci_o2_fujin2_pci_init(struct sdhci_pci_chip *chip)
 		return;
 	scratch_32 &= ~((1 << 21) | (1 << 30));
 
-	/* Set RTD3 function disabled */
-	scratch_32 |= ((1 << 29) | (1 << 28));
 	pci_write_config_dword(chip->pdev, O2_SD_FUNC_REG3, scratch_32);
 
 	/* Set L1 Entrance Timer */
-- 
2.1.4

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