diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/misc/cros_ec_spi.c | 19 | ||||
| -rw-r--r-- | drivers/mtd/spi/sandbox.c | 5 | ||||
| -rw-r--r-- | drivers/mtd/spi/sf_probe.c | 3 | ||||
| -rw-r--r-- | drivers/spi/soft_spi.c | 9 | ||||
| -rw-r--r-- | drivers/spi/spi-uclass.c | 83 |
5 files changed, 56 insertions, 63 deletions
diff --git a/drivers/misc/cros_ec_spi.c b/drivers/misc/cros_ec_spi.c index e6dba298b1..25a5a0468e 100644 --- a/drivers/misc/cros_ec_spi.c +++ b/drivers/misc/cros_ec_spi.c @@ -202,25 +202,6 @@ int cros_ec_spi_init(struct cros_ec_dev *dev, const void *blob) #ifdef CONFIG_DM_CROS_EC int cros_ec_probe(struct udevice *dev) { - struct spi_slave *slave = dev_get_parentdata(dev); - int ret; - - /* - * TODO(sjg@chromium.org) - * - * This is really horrible at present. It is an artifact of removing - * the child_pre_probe() method for SPI. Everything here could go in - * an automatic function, except that spi_get_bus_and_cs() wants to - * set it up manually and call device_probe_child(). - * - * The solution may be to re-enable the child_pre_probe() method for - * SPI and have it do nothing if the child is already passed in via - * device_probe_child(). - */ - slave->dev = dev; - ret = spi_ofdata_to_platdata(gd->fdt_blob, dev->of_offset, slave); - if (ret) - return ret; return cros_ec_register(dev); } diff --git a/drivers/mtd/spi/sandbox.c b/drivers/mtd/spi/sandbox.c index 106dda9ccc..d576d31243 100644 --- a/drivers/mtd/spi/sandbox.c +++ b/drivers/mtd/spi/sandbox.c @@ -590,6 +590,11 @@ int sandbox_sf_bind_emul(struct sandbox_state *state, int busnum, int cs, void sandbox_sf_unbind_emul(struct sandbox_state *state, int busnum, int cs) { + struct udevice *dev; + + dev = state->spi[busnum][cs].emul; + device_remove(dev); + device_unbind(dev); state->spi[busnum][cs].emul = NULL; } diff --git a/drivers/mtd/spi/sf_probe.c b/drivers/mtd/spi/sf_probe.c index ce9987fd1a..4103723859 100644 --- a/drivers/mtd/spi/sf_probe.c +++ b/drivers/mtd/spi/sf_probe.c @@ -481,11 +481,12 @@ 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_flash *flash; flash = dev->uclass_priv; flash->dev = dev; - debug("%s: slave=%p, cs=%d\n", __func__, slave, slave->cs); + debug("%s: slave=%p, cs=%d\n", __func__, slave, plat->cs); return spi_flash_probe_slave(slave, flash); } diff --git a/drivers/spi/soft_spi.c b/drivers/spi/soft_spi.c index 9f7d80ee4d..6ae45f5377 100644 --- a/drivers/spi/soft_spi.c +++ b/drivers/spi/soft_spi.c @@ -179,14 +179,6 @@ static int soft_spi_set_mode(struct udevice *dev, unsigned int mode) return 0; } -static int soft_spi_child_pre_probe(struct udevice *dev) -{ - struct spi_slave *slave = dev_get_parentdata(dev); - - slave->dev = dev; - return spi_ofdata_to_platdata(gd->fdt_blob, dev->of_offset, slave); -} - static const struct dm_spi_ops soft_spi_ops = { .claim_bus = soft_spi_claim_bus, .release_bus = soft_spi_release_bus, @@ -241,5 +233,4 @@ U_BOOT_DRIVER(soft_spi) = { .platdata_auto_alloc_size = sizeof(struct soft_spi_platdata), .priv_auto_alloc_size = sizeof(struct soft_spi_priv), .probe = soft_spi_probe, - .child_pre_probe = soft_spi_child_pre_probe, }; diff --git a/drivers/spi/spi-uclass.c b/drivers/spi/spi-uclass.c index 2c134eb39f..63a6217cc6 100644 --- a/drivers/spi/spi-uclass.c +++ b/drivers/spi/spi-uclass.c @@ -98,11 +98,21 @@ int spi_post_bind(struct udevice *dev) return dm_scan_fdt_node(dev, gd->fdt_blob, dev->of_offset, false); } -int spi_post_probe(struct udevice *dev) +int spi_child_post_bind(struct udevice *dev) { - struct dm_spi_bus *spi = dev->uclass_priv; + struct dm_spi_slave_platdata *plat = dev_get_parent_platdata(dev); - spi->max_hz = fdtdec_get_int(gd->fdt_blob, dev->of_offset, + if (dev->of_offset == -1) + return 0; + + return spi_slave_ofdata_to_platdata(gd->fdt_blob, dev->of_offset, plat); +} + +int spi_post_probe(struct udevice *bus) +{ + struct dm_spi_bus *spi = bus->uclass_priv; + + spi->max_hz = fdtdec_get_int(gd->fdt_blob, bus->of_offset, "spi-max-frequency", 0); return 0; @@ -110,18 +120,29 @@ int spi_post_probe(struct udevice *dev) int spi_child_pre_probe(struct udevice *dev) { + struct dm_spi_slave_platdata *plat = dev_get_parent_platdata(dev); struct spi_slave *slave = dev_get_parentdata(dev); + /* + * This is needed because we pass struct spi_slave around the place + * instead slave->dev (a struct udevice). So we have to have some + * way to access the slave udevice given struct spi_slave. Once we + * change the SPI API to use udevice instead of spi_slave, we can + * drop this. + */ slave->dev = dev; + slave->max_hz = plat->max_hz; + slave->mode = plat->mode; + return 0; } int spi_chip_select(struct udevice *dev) { - struct spi_slave *slave = dev_get_parentdata(dev); + struct dm_spi_slave_platdata *plat = dev_get_parent_platdata(dev); - return slave ? slave->cs : -ENOENT; + return plat ? plat->cs : -ENOENT; } int spi_find_chip_select(struct udevice *bus, int cs, struct udevice **devp) @@ -130,17 +151,11 @@ int spi_find_chip_select(struct udevice *bus, int cs, struct udevice **devp) for (device_find_first_child(bus, &dev); dev; device_find_next_child(&dev)) { - struct spi_slave store; - struct spi_slave *slave = dev_get_parentdata(dev); + struct dm_spi_slave_platdata *plat; - if (!slave) { - slave = &store; - spi_ofdata_to_platdata(gd->fdt_blob, dev->of_offset, - slave); - } - debug("%s: slave=%p, cs=%d\n", __func__, slave, - slave ? slave->cs : -1); - if (slave && slave->cs == cs) { + plat = dev_get_parent_platdata(dev); + debug("%s: plat=%p, cs=%d\n", __func__, plat, plat->cs); + if (plat->cs == cs) { *devp = dev; return 0; } @@ -224,7 +239,6 @@ int spi_get_bus_and_cs(int busnum, int cs, int speed, int mode, struct udevice **busp, struct spi_slave **devp) { struct udevice *bus, *dev; - struct spi_slave *slave; bool created = false; int ret; @@ -241,11 +255,17 @@ int spi_get_bus_and_cs(int busnum, int cs, int speed, int mode, * SPI flash chip - we will bind to the correct driver. */ if (ret == -ENODEV && drv_name) { + struct dm_spi_slave_platdata *plat; + debug("%s: Binding new device '%s', busnum=%d, cs=%d, driver=%s\n", __func__, dev_name, busnum, cs, drv_name); ret = device_bind_driver(bus, drv_name, dev_name, &dev); if (ret) return ret; + plat = dev_get_parent_platdata(dev); + plat->cs = cs; + plat->max_hz = speed; + plat->mode = mode; created = true; } else if (ret) { printf("Invalid chip select %d:%d (err=%d)\n", busnum, cs, @@ -254,23 +274,13 @@ int spi_get_bus_and_cs(int busnum, int cs, int speed, int mode, } if (!device_active(dev)) { - slave = (struct spi_slave *)calloc(1, - sizeof(struct spi_slave)); - if (!slave) { - ret = -ENOMEM; - goto err; - } + struct spi_slave *slave; - ret = spi_ofdata_to_platdata(gd->fdt_blob, dev->of_offset, - slave); + ret = device_probe(dev); if (ret) goto err; - slave->cs = cs; + slave = dev_get_parentdata(dev); slave->dev = dev; - ret = device_probe_child(dev, slave); - free(slave); - if (ret) - goto err; } ret = spi_set_speed_mode(bus, speed, mode); @@ -284,6 +294,8 @@ int spi_get_bus_and_cs(int busnum, int cs, int speed, int mode, return 0; err: + debug("%s: Error path, credted=%d, device '%s'\n", __func__, + created, dev->name); if (created) { device_remove(dev); device_unbind(dev); @@ -330,13 +342,13 @@ void spi_free_slave(struct spi_slave *slave) slave->dev = NULL; } -int spi_ofdata_to_platdata(const void *blob, int node, - struct spi_slave *spi) +int spi_slave_ofdata_to_platdata(const void *blob, int node, + struct dm_spi_slave_platdata *plat) { int mode = 0; - spi->cs = fdtdec_get_int(blob, node, "reg", -1); - spi->max_hz = fdtdec_get_int(blob, node, "spi-max-frequency", 0); + plat->cs = fdtdec_get_int(blob, node, "reg", -1); + plat->max_hz = fdtdec_get_int(blob, node, "spi-max-frequency", 0); if (fdtdec_get_bool(blob, node, "spi-cpol")) mode |= SPI_CPOL; if (fdtdec_get_bool(blob, node, "spi-cpha")) @@ -345,7 +357,7 @@ int spi_ofdata_to_platdata(const void *blob, int node, mode |= SPI_CS_HIGH; if (fdtdec_get_bool(blob, node, "spi-half-duplex")) mode |= SPI_PREAMBLE; - spi->mode = mode; + plat->mode = mode; return 0; } @@ -359,6 +371,9 @@ UCLASS_DRIVER(spi) = { .child_pre_probe = spi_child_pre_probe, .per_device_auto_alloc_size = sizeof(struct dm_spi_bus), .per_child_auto_alloc_size = sizeof(struct spi_slave), + .per_child_platdata_auto_alloc_size = + sizeof(struct dm_spi_slave_platdata), + .child_post_bind = spi_child_post_bind, }; UCLASS_DRIVER(spi_generic) = { |