linux-kernel - [PATCH v2 03/10] usb: ulpi: use new api functions if available

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Message-Id: <1470075358-19792-4-git-send-email-tal.shorer@gmail.com>
Date:	Mon,  1 Aug 2016 21:15:51 +0300
From:	Tal Shorer <tal.shorer@...il.com>
To:	gregkh@...uxfoundation.org, linux-usb@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, heikki.krogerus@...ux.intel.com,
	balbi@...nel.org, Tal Shorer <tal.shorer@...il.com>
Subject: [PATCH v2 03/10] usb: ulpi: use new api functions if available

If the registered has the new api callbacks {read|write}_dev, call
these instead of the deprecated read, write functions. If the
registered does not support the new callbacks, revert to calling the
old ones as before.

Signed-off-by: Tal Shorer <tal.shorer@...il.com>
---
 drivers/usb/common/ulpi.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/common/ulpi.c b/drivers/usb/common/ulpi.c
index d1f419c..a877ddb 100644
--- a/drivers/usb/common/ulpi.c
+++ b/drivers/usb/common/ulpi.c
@@ -21,13 +21,17 @@
 
 int ulpi_read(struct ulpi *ulpi, u8 addr)
 {
-	return ulpi->ops->read(ulpi->ops, addr);
+	if (!ulpi->ops->read_dev)
+		return ulpi->ops->read(ulpi->ops, addr);
+	return ulpi->ops->read_dev(ulpi->dev.parent, addr);
 }
 EXPORT_SYMBOL_GPL(ulpi_read);
 
 int ulpi_write(struct ulpi *ulpi, u8 addr, u8 val)
 {
-	return ulpi->ops->write(ulpi->ops, addr, val);
+	if (!ulpi->ops->write_dev)
+		return ulpi->ops->write(ulpi->ops, addr, val);
+	return ulpi->ops->write_dev(ulpi->dev.parent, addr, val);
 }
 EXPORT_SYMBOL_GPL(ulpi_write);
 
-- 
2.7.4