[PATCH v3 13/32] mtd: spi-nor: Print error messages inside Reg Ops methods

From: Tudor.Ambarus
Date: Tue Oct 29 2019 - 07:17:15 EST

From: Tudor Ambarus <tudor.ambarus@xxxxxxxxxxxxx>

Spare the callers of printing error messages by themselves.

Signed-off-by: Tudor Ambarus <tudor.ambarus@xxxxxxxxxxxxx>
---
drivers/mtd/spi-nor/spi-nor.c | 165 +++++++++++++++++++++++++++++++-----------
1 file changed, 123 insertions(+), 42 deletions(-)

diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c
index e5ed9012cd50..bc46b946ac77 100644
--- a/drivers/mtd/spi-nor/spi-nor.c
+++ b/drivers/mtd/spi-nor/spi-nor.c
@@ -394,6 +394,8 @@ static ssize_t spi_nor_write_data(struct spi_nor *nor, loff_t to, size_t len,
*/
static int spi_nor_write_enable(struct spi_nor *nor)
{
+ int ret;
+
if (nor->spimem) {
struct spi_mem_op op =
SPI_MEM_OP(SPI_MEM_OP_CMD(SPINOR_OP_WREN, 1),
@@ -401,10 +403,16 @@ static int spi_nor_write_enable(struct spi_nor *nor)
SPI_MEM_OP_NO_DUMMY,
SPI_MEM_OP_NO_DATA);

- return spi_mem_exec_op(nor->spimem, &op);
+ ret = spi_mem_exec_op(nor->spimem, &op);
+ } else {
+ ret = nor->controller_ops->write_reg(nor, SPINOR_OP_WREN,
+ NULL, 0);
}

- return nor->controller_ops->write_reg(nor, SPINOR_OP_WREN, NULL, 0);
+ if (ret)
+ dev_err(nor->dev, "error %d on Write Enable\n", ret);
+
+ return ret;
}

/*
@@ -412,6 +420,8 @@ static int spi_nor_write_enable(struct spi_nor *nor)
*/
static int spi_nor_write_disable(struct spi_nor *nor)
{
+ int ret;
+
if (nor->spimem) {
struct spi_mem_op op =
SPI_MEM_OP(SPI_MEM_OP_CMD(SPINOR_OP_WRDI, 1),
@@ -419,10 +429,16 @@ static int spi_nor_write_disable(struct spi_nor *nor)
SPI_MEM_OP_NO_DUMMY,
SPI_MEM_OP_NO_DATA);

- return spi_mem_exec_op(nor->spimem, &op);
+ ret = spi_mem_exec_op(nor->spimem, &op);
+ } else {
+ ret = nor->controller_ops->write_reg(nor, SPINOR_OP_WRDI,
+ NULL, 0);
}

- return nor->controller_ops->write_reg(nor, SPINOR_OP_WRDI, NULL, 0);
+ if (ret)
+ dev_err(nor->dev, "error %d on Write Disable\n", ret);
+
+ return ret;
}

/**
@@ -524,6 +540,8 @@ static int spi_nor_read_cr(struct spi_nor *nor, u8 *cr)
*/
static int spi_nor_write_sr(struct spi_nor *nor, u8 val)
{
+ int ret;
+
nor->bouncebuf[0] = val;
if (nor->spimem) {
struct spi_mem_op op =
@@ -532,15 +550,23 @@ static int spi_nor_write_sr(struct spi_nor *nor, u8 val)
SPI_MEM_OP_NO_DUMMY,
SPI_MEM_OP_DATA_OUT(1, nor->bouncebuf, 1));

- return spi_mem_exec_op(nor->spimem, &op);
+ ret = spi_mem_exec_op(nor->spimem, &op);
+ } else {
+ ret = nor->controller_ops->write_reg(nor, SPINOR_OP_WRSR,
+ nor->bouncebuf, 1);
}

- return nor->controller_ops->write_reg(nor, SPINOR_OP_WRSR,
- nor->bouncebuf, 1);
+ if (ret)
+ dev_err(nor->dev, "error %d writing SR\n", ret);
+
+ return ret;
+
}

static int macronix_set_4byte(struct spi_nor *nor, bool enable)
{
+ int ret;
+
if (nor->spimem) {
struct spi_mem_op op =
SPI_MEM_OP(SPI_MEM_OP_CMD(enable ?
@@ -551,12 +577,18 @@ static int macronix_set_4byte(struct spi_nor *nor, bool enable)
SPI_MEM_OP_NO_DUMMY,
SPI_MEM_OP_NO_DATA);

- return spi_mem_exec_op(nor->spimem, &op);
+ ret = spi_mem_exec_op(nor->spimem, &op);
+ } else {
+ ret = nor->controller_ops->write_reg(nor,
+ enable ? SPINOR_OP_EN4B :
+ SPINOR_OP_EX4B,
+ NULL, 0);
}

- return nor->controller_ops->write_reg(nor, enable ? SPINOR_OP_EN4B :
- SPINOR_OP_EX4B,
- NULL, 0);
+ if (ret)
+ dev_err(nor->dev, "error %d setting 4-byte mode\n", ret);
+
+ return ret;
}

static int st_micron_set_4byte(struct spi_nor *nor, bool enable)
@@ -572,6 +604,8 @@ static int st_micron_set_4byte(struct spi_nor *nor, bool enable)

static int spansion_set_4byte(struct spi_nor *nor, bool enable)
{
+ int ret;
+
nor->bouncebuf[0] = enable << 7;

if (nor->spimem) {
@@ -581,15 +615,22 @@ static int spansion_set_4byte(struct spi_nor *nor, bool enable)
SPI_MEM_OP_NO_DUMMY,
SPI_MEM_OP_DATA_OUT(1, nor->bouncebuf, 1));

- return spi_mem_exec_op(nor->spimem, &op);
+ ret = spi_mem_exec_op(nor->spimem, &op);
+ } else {
+ ret = nor->controller_ops->write_reg(nor, SPINOR_OP_BRWR,
+ nor->bouncebuf, 1);
}

- return nor->controller_ops->write_reg(nor, SPINOR_OP_BRWR,
- nor->bouncebuf, 1);
+ if (ret)
+ dev_err(nor->dev, "error %d setting 4-byte mode\n", ret);
+
+ return ret;
}

static int spi_nor_write_ear(struct spi_nor *nor, u8 ear)
{
+ int ret;
+
nor->bouncebuf[0] = ear;

if (nor->spimem) {
@@ -599,11 +640,16 @@ static int spi_nor_write_ear(struct spi_nor *nor, u8 ear)
SPI_MEM_OP_NO_DUMMY,
SPI_MEM_OP_DATA_OUT(1, nor->bouncebuf, 1));

- return spi_mem_exec_op(nor->spimem, &op);
+ ret = spi_mem_exec_op(nor->spimem, &op);
+ } else {
+ ret = nor->controller_ops->write_reg(nor, SPINOR_OP_WREAR,
+ nor->bouncebuf, 1);
}

- return nor->controller_ops->write_reg(nor, SPINOR_OP_WREAR,
- nor->bouncebuf, 1);
+ if (ret)
+ dev_err(nor->dev, "error %d writing EAR\n", ret);
+
+ return ret;
}

static int winbond_set_4byte(struct spi_nor *nor, bool enable)
@@ -628,6 +674,8 @@ static int winbond_set_4byte(struct spi_nor *nor, bool enable)

static int spi_nor_xread_sr(struct spi_nor *nor, u8 *sr)
{
+ int ret;
+
if (nor->spimem) {
struct spi_mem_op op =
SPI_MEM_OP(SPI_MEM_OP_CMD(SPINOR_OP_XRDSR, 1),
@@ -635,10 +683,16 @@ static int spi_nor_xread_sr(struct spi_nor *nor, u8 *sr)
SPI_MEM_OP_NO_DUMMY,
SPI_MEM_OP_DATA_IN(1, sr, 1));

- return spi_mem_exec_op(nor->spimem, &op);
+ ret = spi_mem_exec_op(nor->spimem, &op);
+ } else {
+ ret = nor->controller_ops->read_reg(nor, SPINOR_OP_XRDSR,
+ sr, 1);
}

- return nor->controller_ops->read_reg(nor, SPINOR_OP_XRDSR, sr, 1);
+ if (ret)
+ dev_err(nor->dev, "error %d reading XRDSR\n", ret);
+
+ return ret;
}

static int s3an_sr_ready(struct spi_nor *nor)
@@ -646,16 +700,16 @@ static int s3an_sr_ready(struct spi_nor *nor)
int ret;

ret = spi_nor_xread_sr(nor, nor->bouncebuf);
- if (ret) {
- dev_err(nor->dev, "error %d reading XRDSR\n", ret);
+ if (ret)
return ret;
- }

return !!(nor->bouncebuf[0] & XSR_RDY);
}

static void spi_nor_clear_sr(struct spi_nor *nor)
{
+ int ret;
+
if (nor->spimem) {
struct spi_mem_op op =
SPI_MEM_OP(SPI_MEM_OP_CMD(SPINOR_OP_CLSR, 1),
@@ -663,10 +717,14 @@ static void spi_nor_clear_sr(struct spi_nor *nor)
SPI_MEM_OP_NO_DUMMY,
SPI_MEM_OP_NO_DATA);

- return spi_mem_exec_op(nor->spimem, &op);
+ ret = spi_mem_exec_op(nor->spimem, &op);
+ } else {
+ ret = nor->controller_ops->write_reg(nor, SPINOR_OP_CLSR,
+ NULL, 0);
}

- return nor->controller_ops->write_reg(nor, SPINOR_OP_CLSR, NULL, 0);
+ if (ret)
+ dev_err(nor->dev, "error %d clearing SR\n", ret);
}

static int spi_nor_sr_ready(struct spi_nor *nor)
@@ -692,6 +750,8 @@ static int spi_nor_sr_ready(struct spi_nor *nor)

static void spi_nor_clear_fsr(struct spi_nor *nor)
{
+ int ret;
+
if (nor->spimem) {
struct spi_mem_op op =
SPI_MEM_OP(SPI_MEM_OP_CMD(SPINOR_OP_CLFSR, 1),
@@ -699,10 +759,14 @@ static void spi_nor_clear_fsr(struct spi_nor *nor)
SPI_MEM_OP_NO_DUMMY,
SPI_MEM_OP_NO_DATA);

- return spi_mem_exec_op(nor->spimem, &op);
+ ret = spi_mem_exec_op(nor->spimem, &op);
+ } else {
+ ret = nor->controller_ops->write_reg(nor, SPINOR_OP_CLFSR,
+ NULL, 0);
}

- return nor->controller_ops->write_reg(nor, SPINOR_OP_CLFSR, NULL, 0);
+ if (ret)
+ dev_err(nor->dev, "error %d clearing FSR\n", ret);
}

static int spi_nor_fsr_ready(struct spi_nor *nor)
@@ -839,6 +903,8 @@ static int spi_nor_write_sr_and_check(struct spi_nor *nor, u8 status_new,

static int spi_nor_write_sr2(struct spi_nor *nor, u8 *sr2)
{
+ int ret;
+
if (nor->spimem) {
struct spi_mem_op op =
SPI_MEM_OP(SPI_MEM_OP_CMD(SPINOR_OP_WRSR2, 1),
@@ -846,14 +912,22 @@ static int spi_nor_write_sr2(struct spi_nor *nor, u8 *sr2)
SPI_MEM_OP_NO_DUMMY,
SPI_MEM_OP_DATA_OUT(1, sr2, 1));

- return spi_mem_exec_op(nor->spimem, &op);
+ ret = spi_mem_exec_op(nor->spimem, &op);
+ } else {
+ ret = nor->controller_ops->write_reg(nor, SPINOR_OP_WRSR2,
+ sr2, 1);
}

- return nor->controller_ops->write_reg(nor, SPINOR_OP_WRSR2, sr2, 1);
+ if (ret)
+ dev_err(nor->dev, "error %d writing SR2\n", ret);
+
+ return ret;
}

static int spi_nor_read_sr2(struct spi_nor *nor, u8 *sr2)
{
+ int ret;
+
if (nor->spimem) {
struct spi_mem_op op =
SPI_MEM_OP(SPI_MEM_OP_CMD(SPINOR_OP_RDSR2, 1),
@@ -861,10 +935,16 @@ static int spi_nor_read_sr2(struct spi_nor *nor, u8 *sr2)
SPI_MEM_OP_NO_DUMMY,
SPI_MEM_OP_DATA_IN(1, sr2, 1));

- return spi_mem_exec_op(nor->spimem, &op);
+ ret = spi_mem_exec_op(nor->spimem, &op);
+ } else {
+ ret = nor->controller_ops->read_reg(nor, SPINOR_OP_RDSR2,
+ sr2, 1);
}

- return nor->controller_ops->read_reg(nor, SPINOR_OP_RDSR2, sr2, 1);
+ if (ret)
+ dev_err(nor->dev, "error %d reading SR2\n", ret);
+
+ return ret;
}

/*
@@ -874,6 +954,8 @@ static int spi_nor_read_sr2(struct spi_nor *nor, u8 *sr2)
*/
static int spi_nor_erase_chip(struct spi_nor *nor)
{
+ int ret;
+
dev_dbg(nor->dev, " %lldKiB\n", (long long)(nor->mtd.size >> 10));

if (nor->spimem) {
@@ -883,11 +965,16 @@ static int spi_nor_erase_chip(struct spi_nor *nor)
SPI_MEM_OP_NO_DUMMY,
SPI_MEM_OP_NO_DATA);

- return spi_mem_exec_op(nor->spimem, &op);
+ ret = spi_mem_exec_op(nor->spimem, &op);
+ } else {
+ ret = nor->controller_ops->write_reg(nor, SPINOR_OP_CHIP_ERASE,
+ NULL, 0);
}

- return nor->controller_ops->write_reg(nor, SPINOR_OP_CHIP_ERASE,
- NULL, 0);
+ if (ret)
+ dev_err(nor->dev, "error %d erasing chip\n", ret);
+
+ return ret;
}

static struct spi_nor *mtd_to_spi_nor(struct mtd_info *mtd)
@@ -1934,10 +2021,8 @@ static int sr2_bit7_quad_enable(struct spi_nor *nor)
spi_nor_write_enable(nor);

ret = spi_nor_write_sr2(nor, sr2);
- if (ret) {
- dev_err(nor->dev, "error while writing status register 2\n");
+ if (ret)
return ret;
- }

ret = spi_nor_wait_till_ready(nor);
if (ret)
@@ -1977,10 +2062,8 @@ static int spi_nor_clear_sr_bp(struct spi_nor *nor)
spi_nor_write_enable(nor);

ret = spi_nor_write_sr(nor, nor->bouncebuf[0] & ~mask);
- if (ret) {
- dev_err(nor->dev, "write to status register failed\n");
+ if (ret)
return ret;
- }

return spi_nor_wait_till_ready(nor);
}
@@ -2738,10 +2821,8 @@ static int s3an_nor_setup(struct spi_nor *nor,
int ret;

ret = spi_nor_xread_sr(nor, nor->bouncebuf);
- if (ret) {
- dev_err(nor->dev, "error %d reading XRDSR\n", ret);
+ if (ret)
return ret;
- }

nor->erase_opcode = SPINOR_OP_XSE;
nor->program_opcode = SPINOR_OP_XPP;
--
2.9.5