tree 128e7ad5f4f6f3e4261a916cc5b8809d73d2c9bd
parent c26a43d807211c442b7b474ad759db16867b34c3
author Vaishnav Achath <vaishnav.a@ti.com> 1654239692 +0530
committer Jagan Teki <jagan@edgeble.ai> 1702577833 +0530

mtd: spi-nor-core: Implement spi_nor_read_sfdp_dma_unsafe() for sfdp parse

During SFDP header parse and BFPT parse, structures in stack are used
to perform spi_nor_read_sfdp() which expects a dma-safe buffer.

This commit introduces spi_nor_read_sfdp_dma_unsafe() to wrap
spi_nor_read_sfdp() using a kmalloc'ed bounce buffer which is
the same implementation in Linux (drivers/mtd/spi-nor/sfdp.c).

Signed-off-by: Vaishnav Achath <vaishnav.a@ti.com>
Reviewed-by: Pratyush Yadav <p.yadav@ti.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>