mtd: rawnand: ams-delta: Rename structures and functions to gpio_nand*

Another step in preparation for merging the driver with "gpio-nand".
Signed-off-by: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200212003929.6682-15-jmkrzyszt@gmail.com

drivers/mtd/nand/raw/ams-delta.c

@@ -29,7 +29,7 @@
 /*
  * MTD structure for E3 (Delta)
  */
-struct ams_delta_nand {
+struct gpio_nand {
 	struct nand_controller	base;
 	struct nand_chip	nand_chip;
 	struct gpio_desc	*gpiod_rdy;
@@ -43,19 +43,18 @@ struct ams_delta_nand {
 	bool			data_in;
 	unsigned int		tRP;
 	unsigned int		tWP;
-	u8			(*io_read)(struct ams_delta_nand *this);
-	void			(*io_write)(struct ams_delta_nand *this,
-					    u8 byte);
+	u8			(*io_read)(struct gpio_nand *this);
+	void			(*io_write)(struct gpio_nand *this, u8 byte);
 };
 
-static void ams_delta_write_commit(struct ams_delta_nand *priv)
+static void gpio_nand_write_commit(struct gpio_nand *priv)
 {
 	gpiod_set_value(priv->gpiod_nwe, 1);
 	ndelay(priv->tWP);
 	gpiod_set_value(priv->gpiod_nwe, 0);
 }
 
-static void ams_delta_io_write(struct ams_delta_nand *priv, u8 byte)
+static void gpio_nand_io_write(struct gpio_nand *priv, u8 byte)
 {
 	struct gpio_descs *data_gpiods = priv->data_gpiods;
 	DECLARE_BITMAP(values, BITS_PER_TYPE(byte)) = { byte, };
@@ -63,10 +62,10 @@ static void ams_delta_io_write(struct ams_delta_nand *priv, u8 byte)
 	gpiod_set_raw_array_value(data_gpiods->ndescs, data_gpiods->desc,
 				  data_gpiods->info, values);
 
-	ams_delta_write_commit(priv);
+	gpio_nand_write_commit(priv);
 }
 
-static void ams_delta_dir_output(struct ams_delta_nand *priv, u8 byte)
+static void gpio_nand_dir_output(struct gpio_nand *priv, u8 byte)
 {
 	struct gpio_descs *data_gpiods = priv->data_gpiods;
 	DECLARE_BITMAP(values, BITS_PER_TYPE(byte)) = { byte, };
@@ -76,12 +75,12 @@ static void ams_delta_dir_output(struct ams_delta_nand *priv, u8 byte)
 		gpiod_direction_output_raw(data_gpiods->desc[i],
 					   test_bit(i, values));
 
-	ams_delta_write_commit(priv);
+	gpio_nand_write_commit(priv);
 
 	priv->data_in = false;
 }
 
-static u8 ams_delta_io_read(struct ams_delta_nand *priv)
+static u8 gpio_nand_io_read(struct gpio_nand *priv)
 {
 	u8 res;
 	struct gpio_descs *data_gpiods = priv->data_gpiods;
@@ -99,7 +98,7 @@ static u8 ams_delta_io_read(struct ams_delta_nand *priv)
 	return res;
 }
 
-static void ams_delta_dir_input(struct ams_delta_nand *priv)
+static void gpio_nand_dir_input(struct gpio_nand *priv)
 {
 	struct gpio_descs *data_gpiods = priv->data_gpiods;
 	int i;
@@ -110,68 +109,67 @@ static void ams_delta_dir_input(struct ams_delta_nand *priv)
 	priv->data_in = true;
 }
 
-static void ams_delta_write_buf(struct ams_delta_nand *priv, const u8 *buf,
-				int len)
+static void gpio_nand_write_buf(struct gpio_nand *priv, const u8 *buf, int len)
 {
 	int i = 0;
 
 	if (len > 0 && priv->data_in)
-		ams_delta_dir_output(priv, buf[i++]);
+		gpio_nand_dir_output(priv, buf[i++]);
 
 	while (i < len)
 		priv->io_write(priv, buf[i++]);
 }
 
-static void ams_delta_read_buf(struct ams_delta_nand *priv, u8 *buf, int len)
+static void gpio_nand_read_buf(struct gpio_nand *priv, u8 *buf, int len)
 {
 	int i;
 
 	if (priv->data_gpiods && !priv->data_in)
-		ams_delta_dir_input(priv);
+		gpio_nand_dir_input(priv);
 
 	for (i = 0; i < len; i++)
 		buf[i] = priv->io_read(priv);
 }
 
-static void ams_delta_ctrl_cs(struct ams_delta_nand *priv, bool assert)
+static void gpio_nand_ctrl_cs(struct gpio_nand *priv, bool assert)
 {
 	gpiod_set_value(priv->gpiod_nce, assert);
 }
 
-static int ams_delta_exec_op(struct nand_chip *this,
+static int gpio_nand_exec_op(struct nand_chip *this,
 			     const struct nand_operation *op, bool check_only)
 {
-	struct ams_delta_nand *priv = nand_get_controller_data(this);
+	struct gpio_nand *priv = nand_get_controller_data(this);
 	const struct nand_op_instr *instr;
 	int ret = 0;
 
 	if (check_only)
 		return 0;
 
-	ams_delta_ctrl_cs(priv, 1);
+	gpio_nand_ctrl_cs(priv, 1);
 
 	for (instr = op->instrs; instr < op->instrs + op->ninstrs; instr++) {
 		switch (instr->type) {
 		case NAND_OP_CMD_INSTR:
 			gpiod_set_value(priv->gpiod_cle, 1);
-			ams_delta_write_buf(priv, &instr->ctx.cmd.opcode, 1);
+			gpio_nand_write_buf(priv, &instr->ctx.cmd.opcode, 1);
 			gpiod_set_value(priv->gpiod_cle, 0);
 			break;
 
 		case NAND_OP_ADDR_INSTR:
 			gpiod_set_value(priv->gpiod_ale, 1);
-			ams_delta_write_buf(priv, instr->ctx.addr.addrs,
+			gpio_nand_write_buf(priv, instr->ctx.addr.addrs,
 					    instr->ctx.addr.naddrs);
 			gpiod_set_value(priv->gpiod_ale, 0);
 			break;
 
 		case NAND_OP_DATA_IN_INSTR:
-			ams_delta_read_buf(priv, instr->ctx.data.buf.in,
+			gpio_nand_read_buf(priv, instr->ctx.data.buf.in,
 					   instr->ctx.data.len);
 			break;
 
 		case NAND_OP_DATA_OUT_INSTR:
-			ams_delta_write_buf(priv, instr->ctx.data.buf.out,
+			gpio_nand_write_buf(priv, instr->ctx.data.buf.out,
 					    instr->ctx.data.len);
 			break;
 
@@ -188,15 +186,15 @@ static int ams_delta_exec_op(struct nand_chip *this,
 			break;
 	}
 
-	ams_delta_ctrl_cs(priv, 0);
+	gpio_nand_ctrl_cs(priv, 0);
 
 	return ret;
 }
 
-static int ams_delta_setup_data_interface(struct nand_chip *this, int csline,
+static int gpio_nand_setup_data_interface(struct nand_chip *this, int csline,
 					  const struct nand_data_interface *cf)
 {
-	struct ams_delta_nand *priv = nand_get_controller_data(this);
+	struct gpio_nand *priv = nand_get_controller_data(this);
 	const struct nand_sdr_timings *sdr = nand_get_sdr_timings(cf);
 	struct device *dev = &nand_to_mtd(this)->dev;
 
@@ -217,23 +215,23 @@ static int ams_delta_setup_data_interface(struct nand_chip *this, int csline,
 	return 0;
 }
 
-static const struct nand_controller_ops ams_delta_ops = {
-	.exec_op = ams_delta_exec_op,
-	.setup_data_interface = ams_delta_setup_data_interface,
+static const struct nand_controller_ops gpio_nand_ops = {
+	.exec_op = gpio_nand_exec_op,
+	.setup_data_interface = gpio_nand_setup_data_interface,
 };
 
 /*
  * Main initialization routine
  */
-static int ams_delta_init(struct platform_device *pdev)
+static int gpio_nand_probe(struct platform_device *pdev)
 {
 	struct gpio_nand_platdata *pdata = dev_get_platdata(&pdev->dev);
 	const struct mtd_partition *partitions = NULL;
 	int num_partitions = 0;
-	struct ams_delta_nand *priv;
+	struct gpio_nand *priv;
 	struct nand_chip *this;
 	struct mtd_info *mtd;
-	int (*probe)(struct platform_device *pdev, struct ams_delta_nand *priv);
+	int (*probe)(struct platform_device *pdev, struct gpio_nand *priv);
 	int err = 0;
 
 	if (pdata) {
@@ -242,7 +240,7 @@ static int ams_delta_init(struct platform_device *pdev)
 	}
 
 	/* Allocate memory for MTD device structure and private data */
-	priv = devm_kzalloc(&pdev->dev, sizeof(struct ams_delta_nand),
+	priv = devm_kzalloc(&pdev->dev, sizeof(struct gpio_nand),
 			    GFP_KERNEL);
 	if (!priv)
 		return -ENOMEM;
@@ -329,8 +327,8 @@ static int ams_delta_init(struct platform_device *pdev)
 			return -ENODEV;
 		}
 
-		priv->io_read = ams_delta_io_read;
-		priv->io_write = ams_delta_io_write;
+		priv->io_read = gpio_nand_io_read;
+		priv->io_write = gpio_nand_io_write;
 		priv->data_in = true;
 	}
 
@@ -348,8 +346,8 @@ static int ams_delta_init(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
-	/* Initialize the NAND controller object embedded in ams_delta_nand. */
-	priv->base.ops = &ams_delta_ops;
+	/* Initialize the NAND controller object embedded in gpio_nand. */
+	priv->base.ops = &gpio_nand_ops;
 	nand_controller_init(&priv->base);
 	this->controller = &priv->base;
 
@@ -385,9 +383,9 @@ static int ams_delta_init(struct platform_device *pdev)
 /*
  * Clean up routine
  */
-static int ams_delta_cleanup(struct platform_device *pdev)
+static int gpio_nand_remove(struct platform_device *pdev)
 {
-	struct ams_delta_nand *priv = platform_get_drvdata(pdev);
+	struct gpio_nand *priv = platform_get_drvdata(pdev);
 	struct mtd_info *mtd = nand_to_mtd(&priv->nand_chip);
 
 	/* Apply write protection */
@@ -415,9 +413,9 @@ static const struct platform_device_id gpio_nand_plat_id_table[] = {
 };
 MODULE_DEVICE_TABLE(platform, gpio_nand_plat_id_table);
 
-static struct platform_driver ams_delta_nand_driver = {
-	.probe		= ams_delta_init,
-	.remove		= ams_delta_cleanup,
+static struct platform_driver gpio_nand_driver = {
+	.probe		= gpio_nand_probe,
+	.remove		= gpio_nand_remove,
 	.id_table	= gpio_nand_plat_id_table,
 	.driver		= {
 		.name	= "ams-delta-nand",
@@ -425,7 +423,7 @@ static struct platform_driver ams_delta_nand_driver = {
 	},
 };
 
-module_platform_driver(ams_delta_nand_driver);
+module_platform_driver(gpio_nand_driver);
 
 MODULE_LICENSE("GPL v2");
 MODULE_AUTHOR("Jonathan McDowell <noodles@earth.li>");