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Commit d1ed88ea authored by Tudor Ambarus's avatar Tudor Ambarus
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mtd: spi-nor: Print debug info inside Reg Ops methods 

Spare the callers of printing debug messages by themselves.
Signed-off-by: default avatarTudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: default avatarVignesh Raghavendra <vigneshr@ti.com>
parent f633ebe4
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Showing with 127 additions and 42 deletions
drivers/mtd/spi-nor/spi-nor.c
View file @ d1ed88ea
......@@ -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_dbg(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_dbg(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_dbg(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_dbg(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_dbg(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_dbg(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_dbg(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_dbg(nor->dev, "error %d reading XRDSR\n", ret);
if (ret)
return ret;
}
return !!(nor->bouncebuf[0] & XSR_RDY);
}
static int 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 +717,16 @@ static int 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_dbg(nor->dev, "error %d clearing SR\n", ret);
return ret;
}
static int spi_nor_sr_ready(struct spi_nor *nor)
......@@ -692,6 +752,8 @@ static int spi_nor_sr_ready(struct spi_nor *nor)
static int 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 +761,16 @@ static int 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_dbg(nor->dev, "error %d clearing FSR\n", ret);
return ret;
}
static int spi_nor_fsr_ready(struct spi_nor *nor)
......@@ -839,6 +907,8 @@ 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, const 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 +916,22 @@ static int spi_nor_write_sr2(struct spi_nor *nor, const 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_dbg(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 +939,16 @@ 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_dbg(nor->dev, "error %d reading SR2\n", ret);
return ret;
}
/*
......@@ -874,6 +958,8 @@ 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 +969,16 @@ 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_dbg(nor->dev, "error %d erasing chip\n", ret);
return ret;
}
static struct spi_nor *mtd_to_spi_nor(struct mtd_info *mtd)
......@@ -1934,10 +2025,8 @@ 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_dbg(nor->dev, "error while writing status register 2\n");
if (ret)
return ret;
}
ret = spi_nor_wait_till_ready(nor);
if (ret)
......@@ -1977,10 +2066,8 @@ 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_dbg(nor->dev, "write to status register failed\n");
if (ret)
return ret;
}
return spi_nor_wait_till_ready(nor);
}
......@@ -2739,10 +2826,8 @@ static int s3an_nor_setup(struct spi_nor *nor,
int ret;
ret = spi_nor_xread_sr(nor, nor->bouncebuf);
if (ret) {
dev_dbg(nor->dev, "error %d reading XRDSR\n", ret);
if (ret)
return ret;
}
nor->erase_opcode = SPINOR_OP_XSE;
nor->program_opcode = SPINOR_OP_XPP;
......
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