diff options
| author | Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com> | 2022-07-15 19:31:16 +0530 |
|---|---|---|
| committer | Michal Simek <michal.simek@amd.com> | 2022-07-26 09:34:21 +0200 |
| commit | 1acb70393f2719c70d92f52d91be2525fa1db679 (patch) | |
| tree | f41d40ea9c4f885f6787cecd8c217bf94faa85ff | |
| parent | 557832bd88351ffc0b8e43720b98700fe74f68b2 (diff) | |
spi: zynq_qspi: Add child pre probe function
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>
| -rw-r--r-- | drivers/spi/zynq_qspi.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/spi/zynq_qspi.c b/drivers/spi/zynq_qspi.c index b69d992b28a..066a0c60027 100644 --- a/drivers/spi/zynq_qspi.c +++ b/drivers/spi/zynq_qspi.c @@ -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, ®s->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, }; |