[U-Boot] [PATCH v4 19/21] sf: probe: Use spi_flash_scan in dm-spi-flash
Jagan Teki
jteki at openedev.com
Mon Oct 12 17:01:12 CEST 2015
This patch add support to use spi_flash_scan in
dm-spi-flash probe, so-that it can access the spi_flash
functionalities same as non-dm sf probe.
Signed-off-by: Jagan Teki <jteki at openedev.com>
---
Changes for v4, v3, v2:
- none
drivers/mtd/spi/sf_probe.c | 28 +++++++++++++++++++++++++---
1 file changed, 25 insertions(+), 3 deletions(-)
diff --git a/drivers/mtd/spi/sf_probe.c b/drivers/mtd/spi/sf_probe.c
index cfc696f..6ce82a7 100644
--- a/drivers/mtd/spi/sf_probe.c
+++ b/drivers/mtd/spi/sf_probe.c
@@ -137,14 +137,36 @@ int spi_flash_std_erase(struct udevice *dev, u32 offset, size_t len)
int spi_flash_std_probe(struct udevice *dev)
{
- struct spi_slave *slave = dev_get_parentdata(dev);
struct dm_spi_slave_platdata *plat = dev_get_parent_platdata(dev);
+ struct spi_slave *slave = dev_get_parentdata(dev);
struct spi_flash *flash;
+ int ret;
+
+ debug("%s: slave=%p, cs=%d\n", __func__, slave, plat->cs);
flash = dev_get_uclass_priv(dev);
flash->dev = dev;
- debug("%s: slave=%p, cs=%d\n", __func__, slave, plat->cs);
- return spi_flash_probe_slave(slave, flash);
+
+ /* Claim spi bus */
+ ret = spi_claim_bus(slave);
+ if (ret) {
+ debug("SF: Failed to claim SPI bus: %d\n", ret);
+ return ret;
+ }
+
+ ret = spi_flash_scan(slave, flash);
+ if (ret) {
+ ret = -EINVAL;
+ goto err_read_id;
+ }
+
+#ifdef CONFIG_SPI_FLASH_MTD
+ ret = spi_flash_mtd_register(flash);
+#endif
+
+err_read_id:
+ spi_release_bus(slave);
+ return ret;
}
static const struct dm_spi_flash_ops spi_flash_std_ops = {
--
1.9.1
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