diff options
| -rw-r--r-- | drivers/spi/spi-mtk-nor.c | 29 |
1 files changed, 16 insertions, 13 deletions
diff --git a/drivers/spi/spi-mtk-nor.c b/drivers/spi/spi-mtk-nor.c index b08d8e9a8ee9..6e6ca2b8e6c8 100644 --- a/drivers/spi/spi-mtk-nor.c +++ b/drivers/spi/spi-mtk-nor.c @@ -211,25 +211,28 @@ static bool mtk_nor_supports_op(struct spi_mem *mem, if (op->cmd.buswidth != 1) return false; - /* DTR ops not supported. */ - if (op->cmd.dtr || op->addr.dtr || op->dummy.dtr || op->data.dtr) - return false; - if (op->cmd.nbytes != 1) - return false; - if ((op->addr.nbytes == 3) || (op->addr.nbytes == 4)) { - if ((op->data.dir == SPI_MEM_DATA_IN) && mtk_nor_match_read(op)) - return true; - else if (op->data.dir == SPI_MEM_DATA_OUT) - return (op->addr.buswidth == 1) && - (op->dummy.buswidth == 0) && - (op->data.buswidth == 1); + switch(op->data.dir) { + case SPI_MEM_DATA_IN: + if (!mtk_nor_match_read(op)) + return false; + break; + case SPI_MEM_DATA_OUT: + if ((op->addr.buswidth != 1) || + (op->dummy.nbytes != 0) || + (op->data.buswidth != 1)) + return false; + break; + default: + break; + } } len = op->cmd.nbytes + op->addr.nbytes + op->dummy.nbytes; if ((len > MTK_NOR_PRG_MAX_SIZE) || ((op->data.nbytes) && (len == MTK_NOR_PRG_MAX_SIZE))) return false; - return true; + + return spi_mem_default_supports_op(mem, op); } static void mtk_nor_setup_bus(struct mtk_nor *sp, const struct spi_mem_op *op) |