From: Dan Murphy <dmurphy@ti.com>
Date: Fri, 23 Aug 2019 17:50:58 +0000 (-0500)
Subject: can: tcan4x5x: Remove checking the wake pin
X-Git-Tag: v5.4-rc1~131^2~81^2~11
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=81f29dd304698d2650d09177c8b34d09679deb0d;p=platform%2Fkernel%2Flinux-rpi.git

can: tcan4x5x: Remove checking the wake pin

Remove checking the wake pin for every read/write call.
The device is not explicitly put to sleep in the code
and the POR interrupt is cleared during the init of
the device.

Signed-off-by: Dan Murphy <dmurphy@ti.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---

diff --git a/drivers/net/can/m_can/tcan4x5x.c b/drivers/net/can/m_can/tcan4x5x.c
index bb41e8d..3db6192 100644
--- a/drivers/net/can/m_can/tcan4x5x.c
+++ b/drivers/net/can/m_can/tcan4x5x.c
@@ -235,8 +235,6 @@ static u32 tcan4x5x_read_reg(struct m_can_classdev *cdev, int reg)
 	struct tcan4x5x_priv *priv = cdev->device_data;
 	u32 val;
 
-	tcan4x5x_check_wake(priv);
-
 	regmap_read(priv->regmap, priv->reg_offset + reg, &val);
 
 	return val;
@@ -247,8 +245,6 @@ static u32 tcan4x5x_read_fifo(struct m_can_classdev *cdev, int addr_offset)
 	struct tcan4x5x_priv *priv = cdev->device_data;
 	u32 val;
 
-	tcan4x5x_check_wake(priv);
-
 	regmap_read(priv->regmap, priv->mram_start + addr_offset, &val);
 
 	return val;
@@ -258,8 +254,6 @@ static int tcan4x5x_write_reg(struct m_can_classdev *cdev, int reg, int val)
 {
 	struct tcan4x5x_priv *priv = cdev->device_data;
 
-	tcan4x5x_check_wake(priv);
-
 	return regmap_write(priv->regmap, priv->reg_offset + reg, val);
 }
 
@@ -268,8 +262,6 @@ static int tcan4x5x_write_fifo(struct m_can_classdev *cdev,
 {
 	struct tcan4x5x_priv *priv = cdev->device_data;
 
-	tcan4x5x_check_wake(priv);
-
 	return regmap_write(priv->regmap, priv->mram_start + addr_offset, val);
 }
 
@@ -289,18 +281,13 @@ static int tcan4x5x_write_tcan_reg(struct m_can_classdev *cdev,
 {
 	struct tcan4x5x_priv *priv = cdev->device_data;
 
-	tcan4x5x_check_wake(priv);
-
 	return regmap_write(priv->regmap, reg, val);
 }
 
 static int tcan4x5x_clear_interrupts(struct m_can_classdev *cdev)
 {
-	struct tcan4x5x_priv *tcan4x5x = cdev->device_data;
 	int ret;
 
-	tcan4x5x_check_wake(tcan4x5x);
-
 	ret = tcan4x5x_write_tcan_reg(cdev, TCAN4X5X_STATUS,
 				      TCAN4X5X_CLEAR_ALL_INT);
 	if (ret)