Revert :can: sja1000: fix handling on dt properties on little endian systems"

This reverts commit 55fe10a686c3a8bce7bddc149e4ebb12f5a18c25 which is
commit 0443de5fbf224abf41f688d8487b0c307dc5a4b4 upstream.

This causes a build breakage on 3.0, so we shouldn't apply it to that
tree.

Reported-by: Jiri Slaby <jslaby@suse.cz>
Cc: Christoph Fritz <chf.fritz@googlemail.com>
Cc: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/net/can/sja1000/sja1000_of_platform.c b/drivers/net/can/sja1000/sja1000_of_platform.c
index 877836ff7f0c915251c2e0cb566cfe92f6178c48..9793df6e3455a8774c0150a72d2270c77ab788e6 100644 (file)
--- a/drivers/net/can/sja1000/sja1000_of_platform.c
+++ b/drivers/net/can/sja1000/sja1000_of_platform.c
@@ -93,8 +93,8 @@ static int __devinit sja1000_ofp_probe(struct platform_device *ofdev)
        struct net_device *dev;
        struct sja1000_priv *priv;
        struct resource res;
-       u32 prop;
-       int err, irq, res_size;
+       const u32 *prop;
+       int err, irq, res_size, prop_size;
        void __iomem *base;
 
        err = of_address_to_resource(np, 0, &res);
@@ -135,27 +135,27 @@ static int __devinit sja1000_ofp_probe(struct platform_device *ofdev)
        priv->read_reg = sja1000_ofp_read_reg;
        priv->write_reg = sja1000_ofp_write_reg;
 
-       err = of_property_read_u32(np, "nxp,external-clock-frequency", &prop);
-       if (!err)
-               priv->can.clock.freq = prop / 2;
+       prop = of_get_property(np, "nxp,external-clock-frequency", &prop_size);
+       if (prop && (prop_size ==  sizeof(u32)))
+               priv->can.clock.freq = *prop / 2;
        else
                priv->can.clock.freq = SJA1000_OFP_CAN_CLOCK; /* default */
 
-       err = of_property_read_u32(np, "nxp,tx-output-mode", &prop);
-       if (!err)
-               priv->ocr |= prop & OCR_MODE_MASK;
+       prop = of_get_property(np, "nxp,tx-output-mode", &prop_size);
+       if (prop && (prop_size == sizeof(u32)))
+               priv->ocr |= *prop & OCR_MODE_MASK;
        else
                priv->ocr |= OCR_MODE_NORMAL; /* default */
 
-       err = of_property_read_u32(np, "nxp,tx-output-config", &prop);
-       if (!err)
-               priv->ocr |= (prop << OCR_TX_SHIFT) & OCR_TX_MASK;
+       prop = of_get_property(np, "nxp,tx-output-config", &prop_size);
+       if (prop && (prop_size == sizeof(u32)))
+               priv->ocr |= (*prop << OCR_TX_SHIFT) & OCR_TX_MASK;
        else
                priv->ocr |= OCR_TX0_PULLDOWN; /* default */
 
-       err = of_property_read_u32(np, "nxp,clock-out-frequency", &prop);
-       if (!err && prop) {
-               u32 divider = priv->can.clock.freq * 2 / prop;
+       prop = of_get_property(np, "nxp,clock-out-frequency", &prop_size);
+       if (prop && (prop_size == sizeof(u32)) && *prop) {
+               u32 divider = priv->can.clock.freq * 2 / *prop;
 
                if (divider > 1)
                        priv->cdr |= divider / 2 - 1;
@@ -165,7 +165,8 @@ static int __devinit sja1000_ofp_probe(struct platform_device *ofdev)
                priv->cdr |= CDR_CLK_OFF; /* default */
        }
 
-       if (!of_property_read_bool(np, "nxp,no-comparator-bypass"))
+       prop = of_get_property(np, "nxp,no-comparator-bypass", NULL);
+       if (!prop)
                priv->cdr |= CDR_CBP; /* default */
 
        priv->irq_flags = IRQF_SHARED;