[MTD] NAND: Clean up trailing white spaces

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 81 insertions, 81 deletions

diff --git a/drivers/mtd/nand/nandsim.c b/drivers/mtd/nand/nandsim.c
index 754b6ed..de45003 100644
--- a/drivers/mtd/nand/nandsim.c
+++ b/drivers/mtd/nand/nandsim.c
@@ -3,7 +3,7 @@
  *
  * Author: Artem B. Bityuckiy <dedekind@oktetlabs.ru>, <dedekind@infradead.org>
  *
- * Copyright (C) 2004 Nokia Corporation 
+ * Copyright (C) 2004 Nokia Corporation
  *
  * Note: NS means "NAND Simulator".
  * Note: Input means input TO flash chip, output means output FROM chip.
@@ -126,7 +126,7 @@ MODULE_PARM_DESC(dbg,            "Output debug information if not zero");
 
 /* The largest possible page size */
 #define NS_LARGEST_PAGE_SIZE	2048
-	
+
 /* The prefix for simulator output */
 #define NS_OUTPUT_PREFIX "[nandsim]"
 
@@ -145,7 +145,7 @@ MODULE_PARM_DESC(dbg,            "Output debug information if not zero");
         do { if (do_delays) udelay(us); } while(0)
 #define NS_MDELAY(us) \
         do { if (do_delays) mdelay(us); } while(0)
-	
+
 /* Is the nandsim structure initialized ? */
 #define NS_IS_INITIALIZED(ns) ((ns)->geom.totsz != 0)
 
@@ -153,12 +153,12 @@ MODULE_PARM_DESC(dbg,            "Output debug information if not zero");
 #define NS_STATUS_OK(ns) (NAND_STATUS_READY | (NAND_STATUS_WP * ((ns)->lines.wp == 0)))
 
 /* Operation failed completion status */
-#define NS_STATUS_FAILED(ns) (NAND_STATUS_FAIL | NS_STATUS_OK(ns)) 
+#define NS_STATUS_FAILED(ns) (NAND_STATUS_FAIL | NS_STATUS_OK(ns))
 
 /* Calculate the page offset in flash RAM image by (row, column) address */
 #define NS_RAW_OFFSET(ns) \
 	(((ns)->regs.row << (ns)->geom.pgshift) + ((ns)->regs.row * (ns)->geom.oobsz) + (ns)->regs.column)
-	
+
 /* Calculate the OOB offset in flash RAM image by (row, column) address */
 #define NS_RAW_OFFSET_OOB(ns) (NS_RAW_OFFSET(ns) + ns->geom.pgsz)
 
@@ -223,15 +223,15 @@ MODULE_PARM_DESC(dbg,            "Output debug information if not zero");
 
 /* Remove action bits ftom state */
 #define NS_STATE(x) ((x) & ~ACTION_MASK)
-	
-/* 
+
+/*
  * Maximum previous states which need to be saved. Currently saving is
  * only needed for page programm operation with preceeded read command
  * (which is only valid for 512-byte pages).
  */
 #define NS_MAX_PREVSTATES 1
 
-/* 
+/*
  * The structure which describes all the internal simulator data.
  */
 struct nandsim {
@@ -242,7 +242,7 @@ struct nandsim {
 	uint32_t options;       /* chip's characteristic bits */
 	uint32_t state;         /* current chip state */
 	uint32_t nxstate;       /* next expected state */
-	
+
 	uint32_t *op;           /* current operation, NULL operations isn't known yet  */
 	uint32_t pstates[NS_MAX_PREVSTATES]; /* previous states */
 	uint16_t npstates;      /* number of previous states saved */
@@ -413,7 +413,7 @@ init_nandsim(struct mtd_info *mtd)
 			ns->geom.secaddrbytes = 3;
 		}
 	}
-	
+
 	/* Detect how many ID bytes the NAND chip outputs */
         for (i = 0; nand_flash_ids[i].name != NULL; i++) {
                 if (second_id_byte != nand_flash_ids[i].id)
@@ -444,7 +444,7 @@ init_nandsim(struct mtd_info *mtd)
 #ifdef CONFIG_NS_ABS_POS
 	ns->mem.byte = ioremap(CONFIG_NS_ABS_POS, ns->geom.totszoob);
 	if (!ns->mem.byte) {
-		NS_ERR("init_nandsim: failed to map the NAND flash image at address %p\n", 
+		NS_ERR("init_nandsim: failed to map the NAND flash image at address %p\n",
 			(void *)CONFIG_NS_ABS_POS);
 		return -ENOMEM;
 	}
@@ -567,7 +567,7 @@ static int
 check_command(int cmd)
 {
 	switch (cmd) {
-		
+
 	case NAND_CMD_READ0:
 	case NAND_CMD_READSTART:
 	case NAND_CMD_PAGEPROG:
@@ -580,7 +580,7 @@ check_command(int cmd)
 	case NAND_CMD_RESET:
 	case NAND_CMD_READ1:
 		return 0;
-		
+
 	case NAND_CMD_STATUS_MULTI:
 	default:
 		return 1;
@@ -631,7 +631,7 @@ static inline void
 accept_addr_byte(struct nandsim *ns, u_char bt)
 {
 	uint byte = (uint)bt;
-	
+
 	if (ns->regs.count < (ns->geom.pgaddrbytes - ns->geom.secaddrbytes))
 		ns->regs.column |= (byte << 8 * ns->regs.count);
 	else {
@@ -642,11 +642,11 @@ accept_addr_byte(struct nandsim *ns, u_char bt)
 
 	return;
 }
-		
+
 /*
  * Switch to STATE_READY state.
  */
-static inline void 
+static inline void
 switch_to_ready_state(struct nandsim *ns, u_char status)
 {
 	NS_DBG("switch_to_ready_state: switch to %s state\n", get_state_name(STATE_READY));
@@ -675,7 +675,7 @@ switch_to_ready_state(struct nandsim *ns, u_char status)
  *      (for example program from the second half and read from the
  *      second half operations both begin with the READ1 command). In this
  *      case the ns->pstates[] array contains previous states.
- * 
+ *
  * Thus, the function tries to find operation containing the following
  * states (if the 'flag' parameter is 0):
  *    ns->pstates[0], ... ns->pstates[ns->npstates], ns->state
@@ -683,7 +683,7 @@ switch_to_ready_state(struct nandsim *ns, u_char status)
  * If (one and only one) matching operation is found, it is accepted (
  * ns->ops, ns->state, ns->nxstate are initialized, ns->npstate is
  * zeroed).
- * 
+ *
  * If there are several maches, the current state is pushed to the
  * ns->pstates.
  *
@@ -692,7 +692,7 @@ switch_to_ready_state(struct nandsim *ns, u_char status)
  * In such situation the function is called with 'flag' != 0, and the
  * operation is searched using the following pattern:
  *     ns->pstates[0], ... ns->pstates[ns->npstates], <address input>
- * 
+ *
  * It is supposed that this pattern must either match one operation on
  * none. There can't be ambiguity in that case.
  *
@@ -711,15 +711,15 @@ find_operation(struct nandsim *ns, uint32_t flag)
 {
 	int opsfound = 0;
 	int i, j, idx = 0;
-	
+
 	for (i = 0; i < NS_OPER_NUM; i++) {
 
 		int found = 1;
-	
+
 		if (!(ns->options & ops[i].reqopts))
 			/* Ignore operations we can't perform */
 			continue;
-			
+
 		if (flag) {
 			if (!(ops[i].states[ns->npstates] & STATE_ADDR_MASK))
 				continue;
@@ -728,7 +728,7 @@ find_operation(struct nandsim *ns, uint32_t flag)
 				continue;
 		}
 
-		for (j = 0; j < ns->npstates; j++) 
+		for (j = 0; j < ns->npstates; j++)
 			if (NS_STATE(ops[i].states[j]) != NS_STATE(ns->pstates[j])
 				&& (ns->options & ops[idx].reqopts)) {
 				found = 0;
@@ -745,7 +745,7 @@ find_operation(struct nandsim *ns, uint32_t flag)
 		/* Exact match */
 		ns->op = &ops[idx].states[0];
 		if (flag) {
-			/* 
+			/*
 			 * In this case the find_operation function was
 			 * called when address has just began input. But it isn't
 			 * yet fully input and the current state must
@@ -763,7 +763,7 @@ find_operation(struct nandsim *ns, uint32_t flag)
 				idx, get_state_name(ns->state), get_state_name(ns->nxstate));
 		return 0;
 	}
-	
+
 	if (opsfound == 0) {
 		/* Nothing was found. Try to ignore previous commands (if any) and search again */
 		if (ns->npstates != 0) {
@@ -777,13 +777,13 @@ find_operation(struct nandsim *ns, uint32_t flag)
 		switch_to_ready_state(ns, NS_STATUS_FAILED(ns));
 		return -2;
 	}
-	
+
 	if (flag) {
 		/* This shouldn't happen */
 		NS_DBG("find_operation: BUG, operation must be known if address is input\n");
 		return -2;
 	}
-	
+
 	NS_DBG("find_operation: there is still ambiguity\n");
 
 	ns->pstates[ns->npstates++] = ns->state;
@@ -803,7 +803,7 @@ do_state_action(struct nandsim *ns, uint32_t action)
 	int busdiv = ns->busw == 8 ? 1 : 2;
 
 	action &= ACTION_MASK;
-	
+
 	/* Check that page address input is correct */
 	if (action != ACTION_SECERASE && ns->regs.row >= ns->geom.pgnum) {
 		NS_WARN("do_state_action: wrong page number (%#x)\n", ns->regs.row);
@@ -827,14 +827,14 @@ do_state_action(struct nandsim *ns, uint32_t action)
 
 		NS_DBG("do_state_action: (ACTION_CPY:) copy %d bytes to int buf, raw offset %d\n",
 			num, NS_RAW_OFFSET(ns) + ns->regs.off);
-		
+
 		if (ns->regs.off == 0)
 			NS_LOG("read page %d\n", ns->regs.row);
 		else if (ns->regs.off < ns->geom.pgsz)
 			NS_LOG("read page %d (second half)\n", ns->regs.row);
 		else
 			NS_LOG("read OOB of page %d\n", ns->regs.row);
-		
+
 		NS_UDELAY(access_delay);
 		NS_UDELAY(input_cycle * ns->geom.pgsz / 1000 / busdiv);
 
@@ -844,30 +844,30 @@ do_state_action(struct nandsim *ns, uint32_t action)
 		/*
 		 * Erase sector.
 		 */
-		
+
 		if (ns->lines.wp) {
 			NS_ERR("do_state_action: device is write-protected, ignore sector erase\n");
 			return -1;
 		}
-		
+
 		if (ns->regs.row >= ns->geom.pgnum - ns->geom.pgsec
 			|| (ns->regs.row & ~(ns->geom.secsz - 1))) {
 			NS_ERR("do_state_action: wrong sector address (%#x)\n", ns->regs.row);
 			return -1;
 		}
-		
+
 		ns->regs.row = (ns->regs.row <<
 				8 * (ns->geom.pgaddrbytes - ns->geom.secaddrbytes)) | ns->regs.column;
 		ns->regs.column = 0;
-		
+
 		NS_DBG("do_state_action: erase sector at address %#x, off = %d\n",
 				ns->regs.row, NS_RAW_OFFSET(ns));
 		NS_LOG("erase sector %d\n", ns->regs.row >> (ns->geom.secshift - ns->geom.pgshift));
 
 		memset(ns->mem.byte + NS_RAW_OFFSET(ns), 0xFF, ns->geom.secszoob);
-		
+
 		NS_MDELAY(erase_delay);
-		
+
 		break;
 
 	case ACTION_PRGPAGE:
@@ -893,12 +893,12 @@ do_state_action(struct nandsim *ns, uint32_t action)
 		NS_DBG("do_state_action: copy %d bytes from int buf to (%#x, %#x), raw off = %d\n",
 			num, ns->regs.row, ns->regs.column, NS_RAW_OFFSET(ns) + ns->regs.off);
 		NS_LOG("programm page %d\n", ns->regs.row);
-		
+
 		NS_UDELAY(programm_delay);
 		NS_UDELAY(output_cycle * ns->geom.pgsz / 1000 / busdiv);
-		
+
 		break;
-	
+
 	case ACTION_ZEROOFF:
 		NS_DBG("do_state_action: set internal offset to 0\n");
 		ns->regs.off = 0;
@@ -918,7 +918,7 @@ do_state_action(struct nandsim *ns, uint32_t action)
 		NS_DBG("do_state_action: set internal offset to %d\n", ns->geom.pgsz);
 		ns->regs.off = ns->geom.pgsz;
 		break;
-		
+
 	default:
 		NS_DBG("do_state_action: BUG! unknown action\n");
 	}
@@ -937,7 +937,7 @@ switch_state(struct nandsim *ns)
 		 * The current operation have already been identified.
 		 * Just follow the states chain.
 		 */
-		
+
 		ns->stateidx += 1;
 		ns->state = ns->nxstate;
 		ns->nxstate = ns->op[ns->stateidx + 1];
@@ -951,14 +951,14 @@ switch_state(struct nandsim *ns)
 			switch_to_ready_state(ns, NS_STATUS_FAILED(ns));
 			return;
 		}
-		
+
 	} else {
 		/*
 		 * We don't yet know which operation we perform.
 		 * Try to identify it.
 		 */
 
-		/*  
+		/*
 		 *  The only event causing the switch_state function to
 		 *  be called with yet unknown operation is new command.
 		 */
@@ -987,7 +987,7 @@ switch_state(struct nandsim *ns)
 		 */
 
 		u_char status = NS_STATUS_OK(ns);
-		
+
 		/* In case of data states, see if all bytes were input/output */
 		if ((ns->state & (STATE_DATAIN_MASK | STATE_DATAOUT_MASK))
 			&& ns->regs.count != ns->regs.num) {
@@ -995,17 +995,17 @@ switch_state(struct nandsim *ns)
 					ns->regs.num - ns->regs.count);
 			status = NS_STATUS_FAILED(ns);
 		}
-				
+
 		NS_DBG("switch_state: operation complete, switch to STATE_READY state\n");
 
 		switch_to_ready_state(ns, status);
 
 		return;
 	} else if (ns->nxstate & (STATE_DATAIN_MASK | STATE_DATAOUT_MASK)) {
-		/* 
+		/*
 		 * If the next state is data input/output, switch to it now
 		 */
-		
+
 		ns->state      = ns->nxstate;
 		ns->nxstate    = ns->op[++ns->stateidx + 1];
 		ns->regs.num   = ns->regs.count = 0;
@@ -1023,16 +1023,16 @@ switch_state(struct nandsim *ns)
 			case STATE_DATAOUT:
 				ns->regs.num = ns->geom.pgszoob - ns->regs.off - ns->regs.column;
 				break;
-				
+
 			case STATE_DATAOUT_ID:
 				ns->regs.num = ns->geom.idbytes;
 				break;
-				
+
 			case STATE_DATAOUT_STATUS:
 			case STATE_DATAOUT_STATUS_M:
 				ns->regs.count = ns->regs.num = 0;
 				break;
-				
+
 			default:
 				NS_ERR("switch_state: BUG! unknown data state\n");
 		}
@@ -1044,16 +1044,16 @@ switch_state(struct nandsim *ns)
 		 */
 
 		ns->regs.count = 0;
-		
+
 		switch (NS_STATE(ns->nxstate)) {
 			case STATE_ADDR_PAGE:
 				ns->regs.num = ns->geom.pgaddrbytes;
-		
+
 				break;
 			case STATE_ADDR_SEC:
 				ns->regs.num = ns->geom.secaddrbytes;
 				break;
-	
+
 			case STATE_ADDR_ZERO:
 				ns->regs.num = 1;
 				break;
@@ -1062,7 +1062,7 @@ switch_state(struct nandsim *ns)
 				NS_ERR("switch_state: BUG! unknown address state\n");
 		}
 	} else {
-		/* 
+		/*
 		 * Just reset internal counters.
 		 */
 
@@ -1184,7 +1184,7 @@ ns_nand_read_byte(struct mtd_info *mtd)
 		default:
 			BUG();
 	}
-	
+
 	if (ns->regs.count == ns->regs.num) {
 		NS_DBG("read_byte: all bytes were read\n");
 
@@ -1201,9 +1201,9 @@ ns_nand_read_byte(struct mtd_info *mtd)
 		}
 		else if (NS_STATE(ns->nxstate) == STATE_READY)
 			switch_state(ns);
-		
+
 	}
-	
+
 	return outb;
 }
 
@@ -1211,7 +1211,7 @@ static void
 ns_nand_write_byte(struct mtd_info *mtd, u_char byte)
 {
         struct nandsim *ns = (struct nandsim *)((struct nand_chip *)mtd->priv)->priv;
-	
+
 	/* Sanity and correctness checks */
 	if (!ns->lines.ce) {
 		NS_ERR("write_byte: chip is disabled, ignore write\n");
@@ -1221,7 +1221,7 @@ ns_nand_write_byte(struct mtd_info *mtd, u_char byte)
 		NS_ERR("write_byte: ALE and CLE pins are high simultaneously, ignore write\n");
 		return;
 	}
-			
+
 	if (ns->lines.cle == 1) {
 		/*
 		 * The byte written is a command.
@@ -1233,7 +1233,7 @@ ns_nand_write_byte(struct mtd_info *mtd, u_char byte)
 			return;
 		}
 
-		/* 
+		/*
 		 * Chip might still be in STATE_DATAOUT
 		 * (if OPT_AUTOINCR feature is supported), STATE_DATAOUT_STATUS or
 		 * STATE_DATAOUT_STATUS_M state. If so, switch state.
@@ -1254,13 +1254,13 @@ ns_nand_write_byte(struct mtd_info *mtd, u_char byte)
 				"ignore previous states\n", (uint)byte, get_state_name(ns->nxstate));
 			switch_to_ready_state(ns, NS_STATUS_FAILED(ns));
 		}
-		
+
 		/* Check that the command byte is correct */
 		if (check_command(byte)) {
 			NS_ERR("write_byte: unknown command %#x\n", (uint)byte);
 			return;
 		}
-		
+
 		NS_DBG("command byte corresponding to %s state accepted\n",
 			get_state_name(get_state_by_command(byte)));
 		ns->regs.command = byte;
@@ -1277,12 +1277,12 @@ ns_nand_write_byte(struct mtd_info *mtd, u_char byte)
 
 			if (find_operation(ns, 1) < 0)
 				return;
-			
+
 			if ((ns->state & ACTION_MASK) && do_state_action(ns, ns->state) < 0) {
 				switch_to_ready_state(ns, NS_STATUS_FAILED(ns));
 				return;
 			}
-				
+
 			ns->regs.count = 0;
 			switch (NS_STATE(ns->nxstate)) {
 				case STATE_ADDR_PAGE:
@@ -1306,7 +1306,7 @@ ns_nand_write_byte(struct mtd_info *mtd, u_char byte)
 			switch_to_ready_state(ns, NS_STATUS_FAILED(ns));
 			return;
 		}
-		
+
 		/* Check if this is expected byte */
 		if (ns->regs.count == ns->regs.num) {
 			NS_ERR("write_byte: no more address bytes expected\n");
@@ -1325,12 +1325,12 @@ ns_nand_write_byte(struct mtd_info *mtd, u_char byte)
 			NS_DBG("address (%#x, %#x) is accepted\n", ns->regs.row, ns->regs.column);
 			switch_state(ns);
 		}
-		
+
 	} else {
 		/*
 		 * The byte written is an input data.
 		 */
-		
+
 		/* Check that chip is expecting data input */
 		if (!(ns->state & STATE_DATAIN_MASK)) {
 			NS_ERR("write_byte: data input (%#x) isn't expected, state is %s, "
@@ -1372,7 +1372,7 @@ ns_nand_read_word(struct mtd_info *mtd)
 	struct nand_chip *chip = (struct nand_chip *)mtd->priv;
 
 	NS_DBG("read_word\n");
-	
+
 	return chip->read_byte(mtd) | (chip->read_byte(mtd) << 8);
 }
 
@@ -1380,14 +1380,14 @@ static void
 ns_nand_write_word(struct mtd_info *mtd, uint16_t word)
 {
 	struct nand_chip *chip = (struct nand_chip *)mtd->priv;
-	
+
 	NS_DBG("write_word\n");
-	
+
 	chip->write_byte(mtd, word & 0xFF);
 	chip->write_byte(mtd, word >> 8);
 }
 
-static void 
+static void
 ns_nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
 {
         struct nandsim *ns = (struct nandsim *)((struct nand_chip *)mtd->priv)->priv;
@@ -1409,13 +1409,13 @@ ns_nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
 
 	memcpy(ns->buf.byte + ns->regs.count, buf, len);
 	ns->regs.count += len;
-	
+
 	if (ns->regs.count == ns->regs.num) {
 		NS_DBG("write_buf: %d bytes were written\n", ns->regs.count);
 	}
 }
 
-static void 
+static void
 ns_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
 {
         struct nandsim *ns = (struct nandsim *)((struct nand_chip *)mtd->priv)->priv;
@@ -1453,7 +1453,7 @@ ns_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
 
 	memcpy(buf, ns->buf.byte + ns->regs.count, len);
 	ns->regs.count += len;
-	
+
 	if (ns->regs.count == ns->regs.num) {
 		if ((ns->options & OPT_AUTOINCR) && NS_STATE(ns->state) == STATE_DATAOUT) {
 			ns->regs.count = 0;
@@ -1465,11 +1465,11 @@ ns_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
 		else if (NS_STATE(ns->nxstate) == STATE_READY)
 			switch_state(ns);
 	}
-	
+
 	return;
 }
 
-static int 
+static int
 ns_nand_verify_buf(struct mtd_info *mtd, const u_char *buf, int len)
 {
 	ns_nand_read_buf(mtd, (u_char *)&ns_verify_buf[0], len);
@@ -1496,7 +1496,7 @@ int __init ns_init_module(void)
 		NS_ERR("wrong bus width (%d), use only 8 or 16\n", bus_width);
 		return -EINVAL;
 	}
-	
+
 	/* Allocate and initialize mtd_info, nand_chip and nandsim structures */
 	nsmtd = kmalloc(sizeof(struct mtd_info) + sizeof(struct nand_chip)
 				+ sizeof(struct nandsim), GFP_KERNEL);
@@ -1509,7 +1509,7 @@ int __init ns_init_module(void)
 	chip        = (struct nand_chip *)(nsmtd + 1);
         nsmtd->priv = (void *)chip;
 	nand        = (struct nandsim *)(chip + 1);
-	chip->priv  = (void *)nand;	
+	chip->priv  = (void *)nand;
 
 	/*
 	 * Register simulator's callbacks.
@@ -1526,9 +1526,9 @@ int __init ns_init_module(void)
 	chip->eccmode    = NAND_ECC_SOFT;
 	chip->options   |= NAND_SKIP_BBTSCAN;
 
-	/* 
+	/*
 	 * Perform minimum nandsim structure initialization to handle
-	 * the initial ID read command correctly 
+	 * the initial ID read command correctly
 	 */
 	if (third_id_byte != 0xFF || fourth_id_byte != 0xFF)
 		nand->geom.idbytes = 4;
@@ -1557,7 +1557,7 @@ int __init ns_init_module(void)
 		NS_ERR("scan_bbt: can't initialize the nandsim structure\n");
 		goto error;
 	}
-	
+
 	if ((retval = nand_default_bbt(nsmtd)) != 0) {
 		free_nandsim(nand);
 		goto error;