linux-kernel - [PATCH 3.19.y-ckt 129/251] i2c: mux: pca954x: Use __i2c

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Message-Id: <1437008972-9140-130-git-send-email-kamal@canonical.com>
Date:	Wed, 15 Jul 2015 18:07:30 -0700
From:	Kamal Mostafa <kamal@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Alexander Sverdlin <alexander.sverdlin@...ia.com>,
	Wolfram Sang <wsa@...-dreams.de>,
	Kamal Mostafa <kamal@...onical.com>
Subject: [PATCH 3.19.y-ckt 129/251] i2c: mux: pca954x: Use __i2c_transfer because of quirks

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

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

From: Alexander Sverdlin <alexander.sverdlin@...ia.com>

commit 0a8237ae319ab5988d40a7a9b33d68846aae34b4 upstream.

pca9541 and pca954x are calling master_xfer() of the parent adapter directly
thus bypassing the quirks checks of the adapter. Use __i2c_transfer() instead.

Signed-off-by: Alexander Sverdlin <alexander.sverdlin@...ia.com>
Tested-by: Łukasz Gemborowski <lukasz.gemborowski@...ia.com>
Acked-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>
Reviewed-by: Jisheng Zhang <jszhang@...vell.com>
Signed-off-by: Wolfram Sang <wsa@...-dreams.de>
Fixes: b7f625840267b1 ("i2c: add quirk checks to core")
Signed-off-by: Kamal Mostafa <kamal@...onical.com>
---
 drivers/i2c/muxes/i2c-mux-pca9541.c | 4 ++--
 drivers/i2c/muxes/i2c-mux-pca954x.c | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/i2c/muxes/i2c-mux-pca9541.c b/drivers/i2c/muxes/i2c-mux-pca9541.c
index cb77277..0c8d4d2 100644
--- a/drivers/i2c/muxes/i2c-mux-pca9541.c
+++ b/drivers/i2c/muxes/i2c-mux-pca9541.c
@@ -104,7 +104,7 @@ static int pca9541_reg_write(struct i2c_client *client, u8 command, u8 val)
 		buf[0] = command;
 		buf[1] = val;
 		msg.buf = buf;
-		ret = adap->algo->master_xfer(adap, &msg, 1);
+		ret = __i2c_transfer(adap, &msg, 1);
 	} else {
 		union i2c_smbus_data data;
 
@@ -144,7 +144,7 @@ static int pca9541_reg_read(struct i2c_client *client, u8 command)
 				.buf = &val
 			}
 		};
-		ret = adap->algo->master_xfer(adap, msg, 2);
+		ret = __i2c_transfer(adap, msg, 2);
 		if (ret == 2)
 			ret = val;
 		else if (ret >= 0)
diff --git a/drivers/i2c/muxes/i2c-mux-pca954x.c b/drivers/i2c/muxes/i2c-mux-pca954x.c
index ec11b40..15db589 100644
--- a/drivers/i2c/muxes/i2c-mux-pca954x.c
+++ b/drivers/i2c/muxes/i2c-mux-pca954x.c
@@ -133,7 +133,7 @@ static int pca954x_reg_write(struct i2c_adapter *adap,
 		msg.len = 1;
 		buf[0] = val;
 		msg.buf = buf;
-		ret = adap->algo->master_xfer(adap, &msg, 1);
+		ret = __i2c_transfer(adap, &msg, 1);
 	} else {
 		union i2c_smbus_data data;
 		ret = adap->algo->smbus_xfer(adap, client->addr,
-- 
1.9.1

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