diff options
Diffstat (limited to 'target/linux/brcm63xx/patches-4.4/000-4.8-03-mtd-fsl-quadspi-return-amount-of-data-read-written-o.patch')
| -rw-r--r-- | target/linux/brcm63xx/patches-4.4/000-4.8-03-mtd-fsl-quadspi-return-amount-of-data-read-written-o.patch | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/target/linux/brcm63xx/patches-4.4/000-4.8-03-mtd-fsl-quadspi-return-amount-of-data-read-written-o.patch b/target/linux/brcm63xx/patches-4.4/000-4.8-03-mtd-fsl-quadspi-return-amount-of-data-read-written-o.patch new file mode 100644 index 0000000000..232f11cf0d --- /dev/null +++ b/target/linux/brcm63xx/patches-4.4/000-4.8-03-mtd-fsl-quadspi-return-amount-of-data-read-written-o.patch @@ -0,0 +1,72 @@ +From fc0d7e542a0d4193521899d15f8f4999dc295323 Mon Sep 17 00:00:00 2001 +From: Michal Suchanek <hramrach@gmail.com> +Date: Thu, 5 May 2016 17:31:49 -0700 +Subject: [PATCH 03/10] mtd: fsl-quadspi: return amount of data read/written or + error + +Return amount of data read/written or error as read(2)/write(2) does. + +Signed-off-by: Michal Suchanek <hramrach@gmail.com> +Signed-off-by: Brian Norris <computersforpeace@gmail.com> +--- + drivers/mtd/spi-nor/fsl-quadspi.c | 17 +++++++++++------ + 1 file changed, 11 insertions(+), 6 deletions(-) + +--- a/drivers/mtd/spi-nor/fsl-quadspi.c ++++ b/drivers/mtd/spi-nor/fsl-quadspi.c +@@ -575,7 +575,7 @@ static inline void fsl_qspi_invalid(stru + writel(reg, q->iobase + QUADSPI_MCR); + } + +-static int fsl_qspi_nor_write(struct fsl_qspi *q, struct spi_nor *nor, ++static ssize_t fsl_qspi_nor_write(struct fsl_qspi *q, struct spi_nor *nor, + u8 opcode, unsigned int to, u32 *txbuf, + unsigned count, size_t *retlen) + { +@@ -604,8 +604,11 @@ static int fsl_qspi_nor_write(struct fsl + /* Trigger it */ + ret = fsl_qspi_runcmd(q, opcode, to, count); + +- if (ret == 0 && retlen) +- *retlen += count; ++ if (ret == 0) { ++ if (retlen) ++ *retlen += count; ++ return count; ++ } + + return ret; + } +@@ -814,6 +817,8 @@ static int fsl_qspi_write_reg(struct spi + } else if (len > 0) { + ret = fsl_qspi_nor_write(q, nor, opcode, 0, + (u32 *)buf, len, NULL); ++ if (ret > 0) ++ return 0; + } else { + dev_err(q->dev, "invalid cmd %d\n", opcode); + ret = -EINVAL; +@@ -827,12 +832,12 @@ static ssize_t fsl_qspi_write(struct spi + { + struct fsl_qspi *q = nor->priv; + +- fsl_qspi_nor_write(q, nor, nor->program_opcode, to, ++ ssize_t ret = fsl_qspi_nor_write(q, nor, nor->program_opcode, to, + (u32 *)buf, len, retlen); + + /* invalid the data in the AHB buffer. */ + fsl_qspi_invalid(q); +- return 0; ++ return ret; + } + + static ssize_t fsl_qspi_read(struct spi_nor *nor, loff_t from, +@@ -879,7 +884,7 @@ static ssize_t fsl_qspi_read(struct spi_ + len); + + *retlen += len; +- return 0; ++ return len; + } + + static int fsl_qspi_erase(struct spi_nor *nor, loff_t offs) |