dm: env_sf: fix saveenv() to use driver model

It might be missed when converting spi_flash_probe() in cmd_sf.c.

This patch refers to commit fbb099183e ("dm: Convert
spi_flash_probe() and 'sf probe' to use driver model").

Signed-off-by: Gong Qianyu <Qianyu.Gong@freescale.com>
Reviewed-by: York Sun <york.sun@nxp.com>

common/env_sf.c

@@ -16,6 +16,7 @@
 #include <spi_flash.h>
 #include <search.h>
 #include <errno.h>
+#include <dm/device-internal.h>
 
 #ifndef CONFIG_ENV_SPI_BUS
 # define CONFIG_ENV_SPI_BUS	0
@@ -51,6 +52,19 @@ int saveenv(void)
 	char	*saved_buffer = NULL, flag = OBSOLETE_FLAG;
 	u32	saved_size, saved_offset, sector = 1;
 	int	ret;
+#ifdef CONFIG_DM_SPI_FLASH
+	struct udevice *new;
+
+	ret = spi_flash_probe_bus_cs(CONFIG_ENV_SPI_BUS, CONFIG_ENV_SPI_CS,
+				     CONFIG_ENV_SPI_MAX_HZ,
+				     CONFIG_ENV_SPI_MODE, &new);
+	if (ret) {
+		set_default_env("!spi_flash_probe_bus_cs() failed");
+		return 1;
+	}
+
+	env_flash = dev_get_uclass_priv(new);
+#else
 
 	if (!env_flash) {
 		env_flash = spi_flash_probe(CONFIG_ENV_SPI_BUS,
@@ -61,6 +75,7 @@ int saveenv(void)
 			return 1;
 		}
 	}
+#endif
 
 	ret = env_export(&env_new);
 	if (ret)
@@ -227,6 +242,19 @@ int saveenv(void)
 	char	*saved_buffer = NULL;
 	int	ret = 1;
 	env_t	env_new;
+#ifdef CONFIG_DM_SPI_FLASH
+	struct udevice *new;
+
+	ret = spi_flash_probe_bus_cs(CONFIG_ENV_SPI_BUS, CONFIG_ENV_SPI_CS,
+				     CONFIG_ENV_SPI_MAX_HZ,
+				     CONFIG_ENV_SPI_MODE, &new);
+	if (ret) {
+		set_default_env("!spi_flash_probe_bus_cs() failed");
+		return 1;
+	}
+
+	env_flash = dev_get_uclass_priv(new);
+#else
 
 	if (!env_flash) {
 		env_flash = spi_flash_probe(CONFIG_ENV_SPI_BUS,
@@ -237,6 +265,7 @@ int saveenv(void)
 			return 1;
 		}
 	}
+#endif
 
 	/* Is the sector larger than the env (i.e. embedded) */
 	if (CONFIG_ENV_SECT_SIZE > CONFIG_ENV_SIZE) {