linux-kernel - [PATCH V5 1/3] mmc: sdhci: Fix sdhci_do_enable_v4

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Message-ID: <1545355509-6914-2-git-send-email-skomatineni@nvidia.com>
Date:   Thu, 20 Dec 2018 17:25:07 -0800
From:   Sowjanya Komatineni <skomatineni@...dia.com>
To:     <robh+dt@...nel.org>, <mark.rutland@....com>,
        <mperttunen@...dia.com>, <thierry.reding@...il.com>,
        <jonathanh@...dia.com>, <adrian.hunter@...el.com>,
        <ulf.hansson@...aro.org>
CC:     <devicetree@...r.kernel.org>, <linux-tegra@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-mmc@...r.kernel.org>,
        "Sowjanya Komatineni" <skomatineni@...dia.com>
Subject: [PATCH V5 1/3] mmc: sdhci: Fix sdhci_do_enable_v4_mode

V4_MODE is Bit-15 of SDHCI_HOST_CONTROL2 register.
Need to perform word access to this register.

Signed-off-by: Sowjanya Komatineni <skomatineni@...dia.com>
---
 drivers/mmc/host/sdhci.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 99bdae53fa2e..fde984d10619 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -127,12 +127,12 @@ static void sdhci_do_enable_v4_mode(struct sdhci_host *host)
 {
 	u16 ctrl2;
 
-	ctrl2 = sdhci_readb(host, SDHCI_HOST_CONTROL2);
+	ctrl2 = sdhci_readw(host, SDHCI_HOST_CONTROL2);
 	if (ctrl2 & SDHCI_CTRL_V4_MODE)
 		return;
 
 	ctrl2 |= SDHCI_CTRL_V4_MODE;
-	sdhci_writeb(host, ctrl2, SDHCI_HOST_CONTROL);
+	sdhci_writew(host, ctrl2, SDHCI_HOST_CONTROL2);
 }
 
 /*
-- 
2.7.4