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spi: zynq_qspi: Add child pre probe function

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Add child pre probe function in the driver. Update max_hz of priv from
spi_slave structure.

Signed-off-by: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>
Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma@xilinx.com>
Link: https://lore.kernel.org/r/1657893679-20039-2-git-send-email-ashok.reddy.soma@xilinx.com
Signed-off-by: Michal Simek <michal.simek@amd.com>
This commit is contained in:
Siva Durga Prasad Paladugu 2022-07-15 19:31:16 +05:30 committed by Michal Simek
parent 557832bd88
commit 1acb70393f
1 changed files with 12 additions and 0 deletions
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12
drivers/spi/zynq_qspi.c
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@ -94,6 +94,7 @@ struct zynq_qspi_priv {
u8 mode;
u8 fifo_depth;
u32 freq; /* required frequency */
u32 max_hz;
const void *tx_buf;
void *rx_buf;
unsigned len;
@ -174,6 +175,16 @@ static void zynq_qspi_init_hw(struct zynq_qspi_priv *priv)
writel(ZYNQ_QSPI_ENR_SPI_EN_MASK, &regs->enr);
}
static int zynq_qspi_child_pre_probe(struct udevice *bus)
{
struct spi_slave *slave = dev_get_parent_priv(bus);
struct zynq_qspi_priv *priv = dev_get_priv(bus->parent);
priv->max_hz = slave->max_hz;
return 0;
}
static int zynq_qspi_probe(struct udevice *bus)
{
struct zynq_qspi_plat *plat = dev_get_plat(bus);
@ -746,4 +757,5 @@ U_BOOT_DRIVER(zynq_qspi) = {
.plat_auto = sizeof(struct zynq_qspi_plat),
.priv_auto = sizeof(struct zynq_qspi_priv),
.probe = zynq_qspi_probe,
.child_pre_probe = zynq_qspi_child_pre_probe,
};