sf: Drop spl_flash_get_sw_write_prot

The get_sw_write_prot API is used to get the write-protected
bits of flash by reading the status register and other wards
it's API for reading register bits.

1) This kind of requirement can be achieved using existing
   flash operations and flash locking API calls instead of
   making a separate flash API.
2) Technically there is no real hardware user for this API to
   use in the source tree.
3) Having a flash operations API for simple register read bits
   also make difficult to extend the flash operations.
4) Instead of touching generic code, it is possible to have
   this functionality inside spinor operations in the form of
   flash hooks or fixups for associated flash chips.

Considering all these points, this patch drops the get_sw_write_prot
and associated code bases.

Cc: Simon Glass <sjg@chromium.org>
Cc: Vignesh R <vigneshr@ti.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>

1 files changed, 1 insertions, 9 deletions

diff --git a/test/dm/sf.c b/test/dm/sf.c
index 55b8d1545f..9e7dead684 100644
--- a/test/dm/sf.c
+++ b/test/dm/sf.c
@@ -20,7 +20,7 @@
 /* Simple test of sandbox SPI flash */
 static int dm_test_spi_flash(struct unit_test_state *uts)
 {
-	struct udevice *dev, *emul;
+	struct udevice *dev;
 	int full_size = 0x200000;
 	int size = 0x10000;
 	u8 *src, *dst;
@@ -50,14 +50,6 @@ static int dm_test_spi_flash(struct unit_test_state *uts)
 	ut_assertok(spi_flash_read_dm(dev, 0, size, dst));
 	ut_asserteq_mem(src, dst, size);
 
-	/* Try the write-protect stuff */
-	ut_assertok(uclass_first_device_err(UCLASS_SPI_EMUL, &emul));
-	ut_asserteq(0, spl_flash_get_sw_write_prot(dev));
-	sandbox_sf_set_block_protect(emul, 1);
-	ut_asserteq(1, spl_flash_get_sw_write_prot(dev));
-	sandbox_sf_set_block_protect(emul, 0);
-	ut_asserteq(0, spl_flash_get_sw_write_prot(dev));
-
 	/* Check mapping */
 	ut_assertok(dm_spi_get_mmap(dev, &map_base, &map_size, &offset));
 	ut_asserteq(0x1000, map_base);