sf: sf_probe: Remove spi_slave pointer argument

Since spi_slave is a spi pointer in spi_flash{} then assign
spi_slave{} pointer to flash->spi and remove spi_slave
pointer argument to
- spi_flash_probe_slave
- spi_flash_scan

Tested-by: Jagan Teki <jteki@openedev.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Jagan Teki <jteki@openedev.com>

drivers/mtd/spi/sf_internal.h

@@ -227,7 +227,6 @@ void spi_flash_mtd_unregister(void);
 
 /**
  * spi_flash_scan - scan the SPI FLASH
- * @spi:	the spi slave structure
  * @flash:	the spi flash structure
  *
  * The drivers can use this fuction to scan the SPI FLASH.
@@ -236,6 +235,6 @@ void spi_flash_mtd_unregister(void);
  *
  * Return: 0 for success, others for failure.
  */
-int spi_flash_scan(struct spi_slave *spi, struct spi_flash *flash);
+int spi_flash_scan(struct spi_flash *flash);
 
 #endif /* _SF_INTERNAL_H_ */

drivers/mtd/spi/sf_ops.c

@@ -896,8 +896,9 @@ int spi_flash_decode_fdt(const void *blob, struct spi_flash *flash)
 }
 #endif /* CONFIG_IS_ENABLED(OF_CONTROL) */
 
-int spi_flash_scan(struct spi_slave *spi, struct spi_flash *flash)
+int spi_flash_scan(struct spi_flash *flash)
 {
+	struct spi_slave *spi = flash->spi;
 	const struct spi_flash_params *params;
 	u16 jedec, ext_jedec;
 	u8 idcode[5];
@@ -946,7 +947,6 @@ int spi_flash_scan(struct spi_slave *spi, struct spi_flash *flash)
 		write_sr(flash, 0);
 
 	/* Assign spi data */
-	flash->spi = spi;
 	flash->name = params->name;
 	flash->memory_map = spi->memory_map;
 	flash->dual_flash = flash->spi->option;

drivers/mtd/spi/sf_probe.c

@@ -20,12 +20,12 @@
 /**
  * spi_flash_probe_slave() - Probe for a SPI flash device on a bus
  *
- * @spi: Bus to probe
  * @flashp: Pointer to place to put flash info, which may be NULL if the
  * space should be allocated
  */
-int spi_flash_probe_slave(struct spi_slave *spi, struct spi_flash *flash)
+int spi_flash_probe_slave(struct spi_flash *flash)
 {
+	struct spi_slave *spi = flash->spi;
 	int ret;
 
 	/* Setup spi_slave */
@@ -41,7 +41,7 @@ int spi_flash_probe_slave(struct spi_slave *spi, struct spi_flash *flash)
 		return ret;
 	}
 
-	ret = spi_flash_scan(spi, flash);
+	ret = spi_flash_scan(flash);
 	if (ret) {
 		ret = -EINVAL;
 		goto err_read_id;
@@ -68,7 +68,8 @@ struct spi_flash *spi_flash_probe_tail(struct spi_slave *bus)
 		return NULL;
 	}
 
-	if (spi_flash_probe_slave(bus, flash)) {
+	flash->spi = bus;
+	if (spi_flash_probe_slave(flash)) {
 		spi_free_slave(bus);
 		free(flash);
 		return NULL;
@@ -152,8 +153,9 @@ int spi_flash_std_probe(struct udevice *dev)
 
 	flash = dev_get_uclass_priv(dev);
 	flash->dev = dev;
+	flash->spi = slave;
 	debug("%s: slave=%p, cs=%d\n", __func__, slave, plat->cs);
-	return spi_flash_probe_slave(slave, flash);
+	return spi_flash_probe_slave(flash);
 }
 
 static const struct dm_spi_flash_ops spi_flash_std_ops = {