1 From fc0d7e542a0d4193521899d15f8f4999dc295323 Mon Sep 17 00:00:00 2001
2 From: Michal Suchanek <hramrach@gmail.com>
3 Date: Thu, 5 May 2016 17:31:49 -0700
4 Subject: [PATCH 03/10] mtd: fsl-quadspi: return amount of data read/written or
7 Return amount of data read/written or error as read(2)/write(2) does.
9 Signed-off-by: Michal Suchanek <hramrach@gmail.com>
10 Signed-off-by: Brian Norris <computersforpeace@gmail.com>
12 drivers/mtd/spi-nor/fsl-quadspi.c | 17 +++++++++++------
13 1 file changed, 11 insertions(+), 6 deletions(-)
15 --- a/drivers/mtd/spi-nor/fsl-quadspi.c
16 +++ b/drivers/mtd/spi-nor/fsl-quadspi.c
17 @@ -575,7 +575,7 @@ static inline void fsl_qspi_invalid(stru
18 writel(reg, q->iobase + QUADSPI_MCR);
21 -static int fsl_qspi_nor_write(struct fsl_qspi *q, struct spi_nor *nor,
22 +static ssize_t fsl_qspi_nor_write(struct fsl_qspi *q, struct spi_nor *nor,
23 u8 opcode, unsigned int to, u32 *txbuf,
24 unsigned count, size_t *retlen)
26 @@ -604,8 +604,11 @@ static int fsl_qspi_nor_write(struct fsl
28 ret = fsl_qspi_runcmd(q, opcode, to, count);
30 - if (ret == 0 && retlen)
40 @@ -814,6 +817,8 @@ static int fsl_qspi_write_reg(struct spi
42 ret = fsl_qspi_nor_write(q, nor, opcode, 0,
43 (u32 *)buf, len, NULL);
47 dev_err(q->dev, "invalid cmd %d\n", opcode);
49 @@ -827,12 +832,12 @@ static ssize_t fsl_qspi_write(struct spi
51 struct fsl_qspi *q = nor->priv;
53 - fsl_qspi_nor_write(q, nor, nor->program_opcode, to,
54 + ssize_t ret = fsl_qspi_nor_write(q, nor, nor->program_opcode, to,
55 (u32 *)buf, len, retlen);
57 /* invalid the data in the AHB buffer. */
63 static ssize_t fsl_qspi_read(struct spi_nor *nor, loff_t from,
64 @@ -879,7 +884,7 @@ static ssize_t fsl_qspi_read(struct spi_
72 static int fsl_qspi_erase(struct spi_nor *nor, loff_t offs)