spi: stm32_qspi: correct static analysis issues
Sparse issue:
drivers/st/spi/stm32_qspi.c:445:5:
warning: symbol 'stm32_qspi_init' was not declared. Should it be static?
Cppcheck issue:
[drivers/st/spi/stm32_qspi.c:175] -> [drivers/st/spi/stm32_qspi.c:187]:
(style) Variable 'len' is reassigned a value before the old one has been
used.
[drivers/st/spi/stm32_qspi.c:178]:
(style) The scope of the variable 'timeout' can be reduced.
Change-Id: I575fb50766355a6717cbd193fc4a80ff1923014c
Signed-off-by: Yann Gautier <yann.gautier@st.com>
diff --git a/drivers/st/spi/stm32_qspi.c b/drivers/st/spi/stm32_qspi.c
index 188d2ff..c5e4ea8 100644
--- a/drivers/st/spi/stm32_qspi.c
+++ b/drivers/st/spi/stm32_qspi.c
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2019, STMicroelectronics - All Rights Reserved
+ * Copyright (c) 2019-2020, STMicroelectronics - All Rights Reserved
*
* SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
*/
@@ -12,6 +12,7 @@
#include <drivers/delay_timer.h>
#include <drivers/spi_mem.h>
#include <drivers/st/stm32_gpio.h>
+#include <drivers/st/stm32_qspi.h>
#include <drivers/st/stm32mp_reset.h>
#include <lib/mmio.h>
#include <lib/utils_def.h>
@@ -172,9 +173,8 @@
static int stm32_qspi_poll(const struct spi_mem_op *op)
{
void (*fifo)(uint8_t *val, uintptr_t addr);
- uint32_t len = op->data.nbytes;
+ uint32_t len;
uint8_t *buf;
- uint64_t timeout;
if (op->data.dir == SPI_MEM_DATA_IN) {
fifo = stm32_qspi_read_fifo;
@@ -185,7 +185,8 @@
buf = (uint8_t *)op->data.buf;
for (len = op->data.nbytes; len != 0U; len--) {
- timeout = timeout_init_us(QSPI_FIFO_TIMEOUT_US);
+ uint64_t timeout = timeout_init_us(QSPI_FIFO_TIMEOUT_US);
+
while ((mmio_read_32(qspi_base() + QSPI_SR) &
QSPI_SR_FTF) == 0U) {
if (timeout_elapsed(timeout)) {