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mtd: spi: Export spi_flash_std_probe()

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With of-platdata we need to create drivers for particular chips, or at
least drivers that are separate from the standard code, since C structures
are created by dtoc which are private to that driver.

To avoid duplicating the probing code, export this probe function for use
by these drivers.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Simon Glass 2019-12-06 21:42:50 -07:00 • committed by Bin Meng
parent 3937df3d6c
commit 4806fcea1a
2 changed files with 13 additions and 1 deletions
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2
drivers/mtd/spi/sf_probe.c
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@ -137,7 +137,7 @@ static int spi_flash_std_get_sw_write_prot(struct udevice *dev)
return spi_flash_cmd_get_sw_write_prot(flash);
}
static int spi_flash_std_probe(struct udevice *dev)
int spi_flash_std_probe(struct udevice *dev)
{
struct spi_slave *slave = dev_get_parent_priv(dev);
struct dm_spi_slave_platdata *plat = dev_get_parent_platdata(dev);

12
include/spi_flash.h
View file

@ -102,6 +102,18 @@ int spi_flash_erase_dm(struct udevice *dev, u32 offset, size_t len);
*/
int spl_flash_get_sw_write_prot(struct udevice *dev);
/**
* spi_flash_std_probe() - Probe a SPI flash device
*
* This is the standard internal method for probing a SPI flash device to
* determine its type. It can be used in chip-specific drivers which need to
* do this, typically with of-platdata
*
* @dev: SPI-flash device to probe
* @return 0 if OK, -ve on error
*/
int spi_flash_std_probe(struct udevice *dev);
int spi_flash_probe_bus_cs(unsigned int busnum, unsigned int cs,
unsigned int max_hz, unsigned int spi_mode,
struct udevice **devp);