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spi: omap3_spi: Read platform data in ofdata_to_platdata()

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Add an ofdata_to_platdata() callback to access dts in U-boot and
access all platform data in it. This prepares the driver for supporting
both device tree as well as static platform data structures in SPL.

Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
This commit is contained in:
Faiz Abbas 2020-09-14 12:11:16 +05:30 committed by Lokesh Vutla
parent 41cf3cb39d
commit afd4f15a39
1 changed files with 26 additions and 11 deletions
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37
drivers/spi/omap3_spi.c
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@ -414,17 +414,10 @@ static int omap3_spi_set_wordlen(struct udevice *dev, unsigned int wordlen)
static int omap3_spi_probe(struct udevice *dev)
{
struct omap3_spi_priv *priv = dev_get_priv(dev);
const void *blob = gd->fdt_blob;
int node = dev_of_offset(dev);
struct omap3_spi_plat *plat = dev_get_platdata(dev);
struct omap2_mcspi_platform_config* data =
(struct omap2_mcspi_platform_config*)dev_get_driver_data(dev);
priv->regs = (struct mcspi *)(dev_read_addr(dev) + data->regs_offset);
if (fdtdec_get_bool(blob, node, "ti,pindir-d0-out-d1-in"))
priv->pin_dir = MCSPI_PINDIR_D0_OUT_D1_IN;
else
priv->pin_dir = MCSPI_PINDIR_D0_IN_D1_OUT;
priv->regs = plat->regs;
priv->pin_dir = plat->pin_dir;
priv->wordlen = SPI_DEFAULT_WORDLEN;
spi_reset(priv->regs);
@ -476,6 +469,7 @@ static const struct dm_spi_ops omap3_spi_ops = {
*/
};
#if CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA)
static struct omap2_mcspi_platform_config omap2_pdata = {
.regs_offset = 0,
};
@ -484,16 +478,37 @@ static struct omap2_mcspi_platform_config omap4_pdata = {
.regs_offset = OMAP4_MCSPI_REG_OFFSET,
};
static int omap3_spi_ofdata_to_platdata(struct udevice *dev)
{
struct omap2_mcspi_platform_config *data =
(struct omap2_mcspi_platform_config *)dev_get_driver_data(dev);
struct omap3_spi_plat *plat = dev_get_platdata(dev);
plat->regs = (struct mcspi *)(dev_read_addr(dev) + data->regs_offset);
if (dev_read_bool(dev, "ti,pindir-d0-out-d1-in"))
plat->pin_dir = MCSPI_PINDIR_D0_OUT_D1_IN;
else
plat->pin_dir = MCSPI_PINDIR_D0_IN_D1_OUT;
return 0;
}
static const struct udevice_id omap3_spi_ids[] = {
{ .compatible = "ti,omap2-mcspi", .data = (ulong)&omap2_pdata },
{ .compatible = "ti,omap4-mcspi", .data = (ulong)&omap4_pdata },
{ }
};
#endif
U_BOOT_DRIVER(omap3_spi) = {
.name = "omap3_spi",
.id = UCLASS_SPI,
.flags = DM_FLAG_PRE_RELOC,
#if CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA)
.of_match = omap3_spi_ids,
.ofdata_to_platdata = omap3_spi_ofdata_to_platdata,
.platdata_auto_alloc_size = sizeof(struct omap3_spi_plat),
#endif
.probe = omap3_spi_probe,
.ops = &omap3_spi_ops,
.priv_auto_alloc_size = sizeof(struct omap3_spi_priv),