spi/mpc52xx-spi: minor cleanups

- drop own, obsolete include-file
- drop IRQF_SAMPLE_RANDOM (deprecated feature)
- drop 'if' above kfree()
- typos, braces & whitespaces
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Acked-by: Luotao Fu <l.fu@pengutronix.de>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>

drivers/spi/mpc52xx_spi.c

@@ -18,7 +18,6 @@
 #include <linux/interrupt.h>
 #include <linux/delay.h>
 #include <linux/spi/spi.h>
-#include <linux/spi/mpc52xx_spi.h>
 #include <linux/of_spi.h>
 #include <linux/io.h>
 #include <linux/of_gpio.h>
@@ -54,7 +53,7 @@ MODULE_LICENSE("GPL");
 /* FSM state return values */
 #define FSM_STOP	0	/* Nothing more for the state machine to */
 				/* do.  If something interesting happens */
-				/* then and IRQ will be received */
+				/* then an IRQ will be received */
 #define FSM_POLL	1	/* need to poll for completion, an IRQ is */
 				/* not expected */
 #define FSM_CONTINUE	2	/* Keep iterating the state machine */
@@ -62,13 +61,12 @@ MODULE_LICENSE("GPL");
 /* Driver internal data */
 struct mpc52xx_spi {
 	struct spi_master *master;
-	u32 sysclk;
 	void __iomem *regs;
 	int irq0;	/* MODF irq */
 	int irq1;	/* SPIF irq */
-	int ipb_freq;
+	unsigned int ipb_freq;
 
-	/* Statistics */
+	/* Statistics; not used now, but will be reintroduced for debugfs */
 	int msg_count;
 	int wcol_count;
 	int wcol_ticks;
@@ -229,7 +227,7 @@ static int mpc52xx_spi_fsmstate_transfer(int irq, struct mpc52xx_spi *ms,
 		ms->wcol_tx_timestamp = get_tbl();
 		data = 0;
 		if (ms->tx_buf)
-			data = *(ms->tx_buf-1);
+			data = *(ms->tx_buf - 1);
 		out_8(ms->regs + SPI_DATA, data); /* try again */
 		return FSM_CONTINUE;
 	} else if (status & SPI_STATUS_MODF) {
@@ -481,8 +479,9 @@ static int __devinit mpc52xx_spi_probe(struct of_device *op,
 			gpio_direction_output(gpio_cs, 1);
 			ms->gpio_cs[i] = gpio_cs;
 		}
-	} else
+	} else {
 		master->num_chipselect = 1;
+	}
 
 	spin_lock_init(&ms->lock);
 	INIT_LIST_HEAD(&ms->queue);
@@ -490,10 +489,10 @@ static int __devinit mpc52xx_spi_probe(struct of_device *op,
 
 	/* Decide if interrupts can be used */
 	if (ms->irq0 && ms->irq1) {
-		rc = request_irq(ms->irq0, mpc52xx_spi_irq, IRQF_SAMPLE_RANDOM,
+		rc = request_irq(ms->irq0, mpc52xx_spi_irq, 0,
 				  "mpc5200-spi-modf", ms);
-		rc |= request_irq(ms->irq1, mpc52xx_spi_irq, IRQF_SAMPLE_RANDOM,
-				  "mpc5200-spi-spiF", ms);
+		rc |= request_irq(ms->irq1, mpc52xx_spi_irq, 0,
+				  "mpc5200-spi-spif", ms);
 		if (rc) {
 			free_irq(ms->irq0, ms);
 			free_irq(ms->irq1, ms);
@@ -524,7 +523,6 @@ static int __devinit mpc52xx_spi_probe(struct of_device *op,
 	while (i-- > 0)
 		gpio_free(ms->gpio_cs[i]);
 
-	if (ms->gpio_cs != NULL)
 	kfree(ms->gpio_cs);
  err_alloc:
  err_init:
@@ -544,9 +542,7 @@ static int __devexit mpc52xx_spi_remove(struct of_device *op)
 	for (i = 0; i < ms->gpio_cs_count; i++)
 		gpio_free(ms->gpio_cs[i]);
 
-	if (ms->gpio_cs != NULL)
 	kfree(ms->gpio_cs);
-
 	spi_unregister_master(master);
 	spi_master_put(master);
 	iounmap(ms->regs);

include/linux/spi/mpc52xx_spi.h

-
-#ifndef INCLUDE_MPC5200_SPI_H
-#define INCLUDE_MPC5200_SPI_H
-
-extern void mpc52xx_spi_set_premessage_hook(struct spi_master *master,
-					    void (*hook)(struct spi_message *m,
-							 void *context),
-					    void *hook_context);
-
-#endif