watchdog: rti: Use dev_read_addr_ptr()

devfdt_get_addr() returns FDT_ADDR_T_NONE(-1UL) when fail, using
"!priv->regs" to check return value is wrong.

Replace devfdt_read_addr() with dev_read_addr_ptr() when retrieving the
register base address.

dev_read_addr_ptr() supports both live device tree and flat DT backends,
avoiding direct dependency on devfdt_* helpers.

Also use "void __iomem *" to replace "phys_addr_t" to avoid type
casting.

No functional changes.

Signed-off-by: Peng Fan <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>

0 files changed, 0 insertions, 0 deletions