mtd: spi-nor: Prepend spi_nor_ to all Reg Ops methods

All the core functions should begin with "spi_nor_".
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>

drivers/mtd/spi-nor/spi-nor.c

@@ -393,7 +393,7 @@ static ssize_t spi_nor_write_data(struct spi_nor *nor, loff_t to, size_t len,
  * Return the status register value.
  * Returns negative if error occurred.
  */
-static int read_sr(struct spi_nor *nor)
+static int spi_nor_read_sr(struct spi_nor *nor)
 {
 	int ret;
 
@@ -423,7 +423,7 @@ static int read_sr(struct spi_nor *nor)
  * Return the status register value.
  * Returns negative if error occurred.
  */
-static int read_fsr(struct spi_nor *nor)
+static int spi_nor_read_fsr(struct spi_nor *nor)
 {
 	int ret;
 
@@ -453,7 +453,7 @@ static int read_fsr(struct spi_nor *nor)
  * location. Return the configuration register value.
  * Returns negative if error occurred.
  */
-static int read_cr(struct spi_nor *nor)
+static int spi_nor_read_cr(struct spi_nor *nor)
 {
 	int ret;
 
@@ -482,7 +482,7 @@ static int read_cr(struct spi_nor *nor)
  * Write status register 1 byte
  * Returns negative if error occurred.
  */
-static int write_sr(struct spi_nor *nor, u8 val)
+static int spi_nor_write_sr(struct spi_nor *nor, u8 val)
 {
 	nor->bouncebuf[0] = val;
 	if (nor->spimem) {
@@ -503,7 +503,7 @@ static int write_sr(struct spi_nor *nor, u8 val)
  * Set write enable latch with Write Enable command.
  * Returns negative if error occurred.
  */
-static int write_enable(struct spi_nor *nor)
+static int spi_nor_write_enable(struct spi_nor *nor)
 {
 	if (nor->spimem) {
 		struct spi_mem_op op =
@@ -521,7 +521,7 @@ static int write_enable(struct spi_nor *nor)
 /*
  * Send write disable instruction to the chip.
  */
-static int write_disable(struct spi_nor *nor)
+static int spi_nor_write_disable(struct spi_nor *nor)
 {
 	if (nor->spimem) {
 		struct spi_mem_op op =
@@ -644,9 +644,9 @@ static int st_micron_set_4byte(struct spi_nor *nor, bool enable)
 {
 	int ret;
 
-	write_enable(nor);
+	spi_nor_write_enable(nor);
 	ret = macronix_set_4byte(nor, enable);
-	write_disable(nor);
+	spi_nor_write_disable(nor);
 
 	return ret;
 }
@@ -700,9 +700,9 @@ static int winbond_set_4byte(struct spi_nor *nor, bool enable)
 	 * Register to be set to 1, so all 3-byte-address reads come from the
 	 * second 16M. We must clear the register to enable normal behavior.
 	 */
-	write_enable(nor);
+	spi_nor_write_enable(nor);
 	ret = spi_nor_write_ear(nor, 0);
-	write_disable(nor);
+	spi_nor_write_disable(nor);
 
 	return ret;
 }
@@ -752,7 +752,7 @@ static int spi_nor_clear_sr(struct spi_nor *nor)
 
 static int spi_nor_sr_ready(struct spi_nor *nor)
 {
-	int sr = read_sr(nor);
+	int sr = spi_nor_read_sr(nor);
 	if (sr < 0)
 		return sr;
 
@@ -786,7 +786,7 @@ static int spi_nor_clear_fsr(struct spi_nor *nor)
 
 static int spi_nor_fsr_ready(struct spi_nor *nor)
 {
-	int fsr = read_fsr(nor);
+	int fsr = spi_nor_read_fsr(nor);
 	if (fsr < 0)
 		return fsr;
 
@@ -864,7 +864,7 @@ static int spi_nor_wait_till_ready(struct spi_nor *nor)
  *
  * Returns 0 if successful, non-zero otherwise.
  */
-static int erase_chip(struct spi_nor *nor)
+static int spi_nor_erase_chip(struct spi_nor *nor)
 {
 	dev_dbg(nor->dev, " %lldKiB\n", (long long)(nor->mtd.size >> 10));
 
@@ -1215,7 +1215,7 @@ static int spi_nor_erase_multi_sectors(struct spi_nor *nor, u64 addr, u32 len)
 	list_for_each_entry_safe(cmd, next, &erase_list, list) {
 		nor->erase_opcode = cmd->opcode;
 		while (cmd->count) {
-			write_enable(nor);
+			spi_nor_write_enable(nor);
 
 			ret = spi_nor_erase_sector(nor, addr);
 			if (ret)
@@ -1270,9 +1270,9 @@ static int spi_nor_erase(struct mtd_info *mtd, struct erase_info *instr)
 	if (len == mtd->size && !(nor->flags & SNOR_F_NO_OP_CHIP_ERASE)) {
 		unsigned long timeout;
 
-		write_enable(nor);
+		spi_nor_write_enable(nor);
 
-		if (erase_chip(nor)) {
+		if (spi_nor_erase_chip(nor)) {
 			ret = -EIO;
 			goto erase_err;
 		}
@@ -1298,7 +1298,7 @@ static int spi_nor_erase(struct mtd_info *mtd, struct erase_info *instr)
 	/* "sector"-at-a-time erase */
 	} else if (spi_nor_has_uniform_erase(nor)) {
 		while (len) {
-			write_enable(nor);
+			spi_nor_write_enable(nor);
 
 			ret = spi_nor_erase_sector(nor, addr);
 			if (ret)
@@ -1319,7 +1319,7 @@ static int spi_nor_erase(struct mtd_info *mtd, struct erase_info *instr)
 			goto erase_err;
 	}
 
-	write_disable(nor);
+	spi_nor_write_disable(nor);
 
 erase_err:
 	spi_nor_unlock_and_unprep(nor, SPI_NOR_OPS_ERASE);
@@ -1328,12 +1328,13 @@ static int spi_nor_erase(struct mtd_info *mtd, struct erase_info *instr)
 }
 
 /* Write status register and ensure bits in mask match written values */
-static int write_sr_and_check(struct spi_nor *nor, u8 status_new, u8 mask)
+static int spi_nor_write_sr_and_check(struct spi_nor *nor, u8 status_new,
+				      u8 mask)
 {
 	int ret;
 
-	write_enable(nor);
-	ret = write_sr(nor, status_new);
+	spi_nor_write_enable(nor);
+	ret = spi_nor_write_sr(nor, status_new);
 	if (ret)
 		return ret;
 
@@ -1341,7 +1342,7 @@ static int write_sr_and_check(struct spi_nor *nor, u8 status_new, u8 mask)
 	if (ret)
 		return ret;
 
-	ret = read_sr(nor);
+	ret = spi_nor_read_sr(nor);
 	if (ret < 0)
 		return ret;
 
@@ -1447,7 +1448,7 @@ static int stm_lock(struct spi_nor *nor, loff_t ofs, uint64_t len)
 	bool can_be_top = true, can_be_bottom = nor->flags & SNOR_F_HAS_SR_TB;
 	bool use_top;
 
-	status_old = read_sr(nor);
+	status_old = spi_nor_read_sr(nor);
 	if (status_old < 0)
 		return status_old;
 
@@ -1509,7 +1510,7 @@ static int stm_lock(struct spi_nor *nor, loff_t ofs, uint64_t len)
 	if ((status_new & mask) < (status_old & mask))
 		return -EINVAL;
 
-	return write_sr_and_check(nor, status_new, mask);
+	return spi_nor_write_sr_and_check(nor, status_new, mask);
 }
 
 /*
@@ -1527,7 +1528,7 @@ static int stm_unlock(struct spi_nor *nor, loff_t ofs, uint64_t len)
 	bool can_be_top = true, can_be_bottom = nor->flags & SNOR_F_HAS_SR_TB;
 	bool use_top;
 
-	status_old = read_sr(nor);
+	status_old = spi_nor_read_sr(nor);
 	if (status_old < 0)
 		return status_old;
 
@@ -1592,7 +1593,7 @@ static int stm_unlock(struct spi_nor *nor, loff_t ofs, uint64_t len)
 	if ((status_new & mask) > (status_old & mask))
 		return -EINVAL;
 
-	return write_sr_and_check(nor, status_new, mask);
+	return spi_nor_write_sr_and_check(nor, status_new, mask);
 }
 
 /*
@@ -1606,7 +1607,7 @@ static int stm_is_locked(struct spi_nor *nor, loff_t ofs, uint64_t len)
 {
 	int status;
 
-	status = read_sr(nor);
+	status = spi_nor_read_sr(nor);
 	if (status < 0)
 		return status;
 
@@ -1670,11 +1671,11 @@ static int spi_nor_is_locked(struct mtd_info *mtd, loff_t ofs, uint64_t len)
  * second byte will be written to the configuration register.
  * Return negative if error occurred.
  */
-static int write_sr_cr(struct spi_nor *nor, u8 *sr_cr)
+static int spi_nor_write_sr_cr(struct spi_nor *nor, u8 *sr_cr)
 {
 	int ret;
 
-	write_enable(nor);
+	spi_nor_write_enable(nor);
 
 	if (nor->spimem) {
 		struct spi_mem_op op =
@@ -1719,21 +1720,21 @@ static int macronix_quad_enable(struct spi_nor *nor)
 {
 	int ret, val;
 
-	val = read_sr(nor);
+	val = spi_nor_read_sr(nor);
 	if (val < 0)
 		return val;
 	if (val & SR_QUAD_EN_MX)
 		return 0;
 
-	write_enable(nor);
+	spi_nor_write_enable(nor);
 
-	write_sr(nor, val | SR_QUAD_EN_MX);
+	spi_nor_write_sr(nor, val | SR_QUAD_EN_MX);
 
 	ret = spi_nor_wait_till_ready(nor);
 	if (ret)
 		return ret;
 
-	ret = read_sr(nor);
+	ret = spi_nor_read_sr(nor);
 	if (!(ret > 0 && (ret & SR_QUAD_EN_MX))) {
 		dev_err(nor->dev, "Macronix Quad bit not set\n");
 		return -EINVAL;
@@ -1758,7 +1759,8 @@ static int macronix_quad_enable(struct spi_nor *nor)
  * some very old and few memories don't support this instruction. If a pull-up
  * resistor is present on the MISO/IO1 line, we might still be able to pass the
  * "read back" test because the QSPI memory doesn't recognize the command,
- * so leaves the MISO/IO1 line state unchanged, hence read_cr() returns 0xFF.
+ * so leaves the MISO/IO1 line state unchanged, hence spi_nor_read_cr() returns
+ * 0xFF.
  *
  * bit 1 of the Configuration Register is the QE bit for Spansion like QSPI
  * memories.
@@ -1772,12 +1774,12 @@ static int spansion_quad_enable(struct spi_nor *nor)
 
 	sr_cr[0] = 0;
 	sr_cr[1] = CR_QUAD_EN_SPAN;
-	ret = write_sr_cr(nor, sr_cr);
+	ret = spi_nor_write_sr_cr(nor, sr_cr);
 	if (ret)
 		return ret;
 
 	/* read back and check it */
-	ret = read_cr(nor);
+	ret = spi_nor_read_cr(nor);
 	if (!(ret > 0 && (ret & CR_QUAD_EN_SPAN))) {
 		dev_err(nor->dev, "Spansion Quad bit not set\n");
 		return -EINVAL;
@@ -1805,7 +1807,7 @@ static int spansion_no_read_cr_quad_enable(struct spi_nor *nor)
 	int ret;
 
 	/* Keep the current value of the Status Register. */
-	ret = read_sr(nor);
+	ret = spi_nor_read_sr(nor);
 	if (ret < 0) {
 		dev_err(nor->dev, "error while reading status register\n");
 		return -EINVAL;
@@ -1813,7 +1815,7 @@ static int spansion_no_read_cr_quad_enable(struct spi_nor *nor)
 	sr_cr[0] = ret;
 	sr_cr[1] = CR_QUAD_EN_SPAN;
 
-	return write_sr_cr(nor, sr_cr);
+	return spi_nor_write_sr_cr(nor, sr_cr);
 }
 
 /**
@@ -1836,7 +1838,7 @@ static int spansion_read_cr_quad_enable(struct spi_nor *nor)
 	int ret;
 
 	/* Check current Quad Enable bit value. */
-	ret = read_cr(nor);
+	ret = spi_nor_read_cr(nor);
 	if (ret < 0) {
 		dev_err(dev, "error while reading configuration register\n");
 		return -EINVAL;
@@ -1848,19 +1850,19 @@ static int spansion_read_cr_quad_enable(struct spi_nor *nor)
 	sr_cr[1] = ret | CR_QUAD_EN_SPAN;
 
 	/* Keep the current value of the Status Register. */
-	ret = read_sr(nor);
+	ret = spi_nor_read_sr(nor);
 	if (ret < 0) {
 		dev_err(dev, "error while reading status register\n");
 		return -EINVAL;
 	}
 	sr_cr[0] = ret;
 
-	ret = write_sr_cr(nor, sr_cr);
+	ret = spi_nor_write_sr_cr(nor, sr_cr);
 	if (ret)
 		return ret;
 
 	/* Read back and check it. */
-	ret = read_cr(nor);
+	ret = spi_nor_read_cr(nor);
 	if (!(ret > 0 && (ret & CR_QUAD_EN_SPAN))) {
 		dev_err(nor->dev, "Spansion Quad bit not set\n");
 		return -EINVAL;
@@ -1926,7 +1928,7 @@ static int sr2_bit7_quad_enable(struct spi_nor *nor)
 	/* Update the Quad Enable bit. */
 	*sr2 |= SR2_QUAD_EN_BIT7;
 
-	write_enable(nor);
+	spi_nor_write_enable(nor);
 
 	ret = spi_nor_write_sr2(nor, sr2);
 	if (ret < 0) {
@@ -1964,15 +1966,15 @@ static int spi_nor_clear_sr_bp(struct spi_nor *nor)
 	int ret;
 	u8 mask = SR_BP2 | SR_BP1 | SR_BP0;
 
-	ret = read_sr(nor);
+	ret = spi_nor_read_sr(nor);
 	if (ret < 0) {
 		dev_err(nor->dev, "error while reading status register\n");
 		return ret;
 	}
 
-	write_enable(nor);
+	spi_nor_write_enable(nor);
 
-	ret = write_sr(nor, ret & ~mask);
+	ret = spi_nor_write_sr(nor, ret & ~mask);
 	if (ret) {
 		dev_err(nor->dev, "write to status register failed\n");
 		return ret;
@@ -2004,7 +2006,7 @@ static int spi_nor_spansion_clear_sr_bp(struct spi_nor *nor)
 	u8 *sr_cr =  nor->bouncebuf;
 
 	/* Check current Quad Enable bit value. */
-	ret = read_cr(nor);
+	ret = spi_nor_read_cr(nor);
 	if (ret < 0) {
 		dev_err(nor->dev,
 			"error while reading configuration register\n");
@@ -2018,7 +2020,7 @@ static int spi_nor_spansion_clear_sr_bp(struct spi_nor *nor)
 	if (ret & CR_QUAD_EN_SPAN) {
 		sr_cr[1] = ret;
 
-		ret = read_sr(nor);
+		ret = spi_nor_read_sr(nor);
 		if (ret < 0) {
 			dev_err(nor->dev,
 				"error while reading status register\n");
@@ -2026,7 +2028,7 @@ static int spi_nor_spansion_clear_sr_bp(struct spi_nor *nor)
 		}
 		sr_cr[0] = ret & ~mask;
 
-		ret = write_sr_cr(nor, sr_cr);
+		ret = spi_nor_write_sr_cr(nor, sr_cr);
 		if (ret)
 			dev_err(nor->dev, "16-bit write register failed\n");
 		return ret;
@@ -2602,7 +2604,7 @@ static int sst_write(struct mtd_info *mtd, loff_t to, size_t len,
 	if (ret)
 		return ret;
 
-	write_enable(nor);
+	spi_nor_write_enable(nor);
 
 	nor->sst_write_second = false;
 
@@ -2641,14 +2643,14 @@ static int sst_write(struct mtd_info *mtd, loff_t to, size_t len,
 	}
 	nor->sst_write_second = false;
 
-	write_disable(nor);
+	spi_nor_write_disable(nor);
 	ret = spi_nor_wait_till_ready(nor);
 	if (ret)
 		goto sst_write_err;
 
 	/* Write out trailing byte if it exists. */
 	if (actual != len) {
-		write_enable(nor);
+		spi_nor_write_enable(nor);
 
 		nor->program_opcode = SPINOR_OP_BP;
 		ret = spi_nor_write_data(nor, to, 1, buf + actual);
@@ -2659,7 +2661,7 @@ static int sst_write(struct mtd_info *mtd, loff_t to, size_t len,
 		ret = spi_nor_wait_till_ready(nor);
 		if (ret)
 			goto sst_write_err;
-		write_disable(nor);
+		spi_nor_write_disable(nor);
 		actual += 1;
 	}
 sst_write_err:
@@ -2711,7 +2713,7 @@ static int spi_nor_write(struct mtd_info *mtd, loff_t to, size_t len,
 
 		addr = spi_nor_convert_addr(nor, addr);
 
-		write_enable(nor);
+		spi_nor_write_enable(nor);
 		ret = spi_nor_write_data(nor, addr, page_remain, buf + i);
 		if (ret < 0)
 			goto write_err;