diff options
author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-09-11 04:34:46 -0300 |
---|---|---|
committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-09-11 04:34:46 -0300 |
commit | 863981e96738983919de841ec669e157e6bdaeb0 (patch) | |
tree | d6d89a12e7eb8017837c057935a2271290907f76 /drivers/mtd/devices/m25p80.c | |
parent | 8dec7c70575785729a6a9e6719a955e9c545bcab (diff) |
Linux-libre 4.7.1-gnupck-4.7.1-gnu
Diffstat (limited to 'drivers/mtd/devices/m25p80.c')
-rw-r--r-- | drivers/mtd/devices/m25p80.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c index c9c3b7fa3..9d6854467 100644 --- a/drivers/mtd/devices/m25p80.c +++ b/drivers/mtd/devices/m25p80.c @@ -131,6 +131,28 @@ static int m25p80_read(struct spi_nor *nor, loff_t from, size_t len, /* convert the dummy cycles to the number of bytes */ dummy /= 8; + if (spi_flash_read_supported(spi)) { + struct spi_flash_read_message msg; + int ret; + + memset(&msg, 0, sizeof(msg)); + + msg.buf = buf; + msg.from = from; + msg.len = len; + msg.read_opcode = nor->read_opcode; + msg.addr_width = nor->addr_width; + msg.dummy_bytes = dummy; + /* TODO: Support other combinations */ + msg.opcode_nbits = SPI_NBITS_SINGLE; + msg.addr_nbits = SPI_NBITS_SINGLE; + msg.data_nbits = m25p80_rx_nbits(nor); + + ret = spi_flash_read(spi, &msg); + *retlen = msg.retlen; + return ret; + } + spi_message_init(&m); memset(t, 0, (sizeof t)); |