summaryrefslogtreecommitdiff
path: root/drivers/spi/spi-stm32-qspi.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/spi/spi-stm32-qspi.c')
-rw-r--r--drivers/spi/spi-stm32-qspi.c63
1 files changed, 23 insertions, 40 deletions
diff --git a/drivers/spi/spi-stm32-qspi.c b/drivers/spi/spi-stm32-qspi.c
index 9131660c1afb..f2d19f1c5ab1 100644
--- a/drivers/spi/spi-stm32-qspi.c
+++ b/drivers/spi/spi-stm32-qspi.c
@@ -8,14 +8,13 @@
#include <linux/dmaengine.h>
#include <linux/dma-mapping.h>
#include <linux/errno.h>
+#include <linux/gpio/consumer.h>
#include <linux/io.h>
#include <linux/iopoll.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/of.h>
-#include <linux/of_device.h>
-#include <linux/of_gpio.h>
#include <linux/pinctrl/consumer.h>
#include <linux/pm_runtime.h>
#include <linux/platform_device.h>
@@ -350,7 +349,7 @@ static int stm32_qspi_wait_poll_status(struct stm32_qspi *qspi)
static int stm32_qspi_get_mode(u8 buswidth)
{
- if (buswidth == 4)
+ if (buswidth >= 4)
return CCR_BUSWIDTH_4;
return buswidth;
@@ -358,16 +357,11 @@ static int stm32_qspi_get_mode(u8 buswidth)
static int stm32_qspi_send(struct spi_device *spi, const struct spi_mem_op *op)
{
- struct stm32_qspi *qspi = spi_controller_get_devdata(spi->master);
- struct stm32_qspi_flash *flash = &qspi->flash[spi->chip_select];
+ struct stm32_qspi *qspi = spi_controller_get_devdata(spi->controller);
+ struct stm32_qspi_flash *flash = &qspi->flash[spi_get_chipselect(spi, 0)];
u32 ccr, cr;
int timeout, err = 0, err_poll_status = 0;
- dev_dbg(qspi->dev, "cmd:%#x mode:%d.%d.%d.%d addr:%#llx len:%#x\n",
- op->cmd.opcode, op->cmd.buswidth, op->addr.buswidth,
- op->dummy.buswidth, op->data.buswidth,
- op->addr.val, op->data.nbytes);
-
cr = readl_relaxed(qspi->io_base + QSPI_CR);
cr &= ~CR_PRESC_MASK & ~CR_FSEL;
cr |= FIELD_PREP(CR_PRESC_MASK, flash->presc);
@@ -449,7 +443,7 @@ static int stm32_qspi_poll_status(struct spi_mem *mem, const struct spi_mem_op *
unsigned long polling_rate_us,
unsigned long timeout_ms)
{
- struct stm32_qspi *qspi = spi_controller_get_devdata(mem->spi->master);
+ struct stm32_qspi *qspi = spi_controller_get_devdata(mem->spi->controller);
int ret;
if (!spi_mem_supports_op(mem, op))
@@ -469,7 +463,6 @@ static int stm32_qspi_poll_status(struct spi_mem *mem, const struct spi_mem_op *
ret = stm32_qspi_send(mem->spi, op);
mutex_unlock(&qspi->lock);
- pm_runtime_mark_last_busy(qspi->dev);
pm_runtime_put_autosuspend(qspi->dev);
return ret;
@@ -477,7 +470,7 @@ static int stm32_qspi_poll_status(struct spi_mem *mem, const struct spi_mem_op *
static int stm32_qspi_exec_op(struct spi_mem *mem, const struct spi_mem_op *op)
{
- struct stm32_qspi *qspi = spi_controller_get_devdata(mem->spi->master);
+ struct stm32_qspi *qspi = spi_controller_get_devdata(mem->spi->controller);
int ret;
ret = pm_runtime_resume_and_get(qspi->dev);
@@ -493,7 +486,6 @@ static int stm32_qspi_exec_op(struct spi_mem *mem, const struct spi_mem_op *op)
ret = stm32_qspi_send(mem->spi, op);
mutex_unlock(&qspi->lock);
- pm_runtime_mark_last_busy(qspi->dev);
pm_runtime_put_autosuspend(qspi->dev);
return ret;
@@ -501,7 +493,7 @@ static int stm32_qspi_exec_op(struct spi_mem *mem, const struct spi_mem_op *op)
static int stm32_qspi_dirmap_create(struct spi_mem_dirmap_desc *desc)
{
- struct stm32_qspi *qspi = spi_controller_get_devdata(desc->mem->spi->master);
+ struct stm32_qspi *qspi = spi_controller_get_devdata(desc->mem->spi->controller);
if (desc->info.op_tmpl.data.dir == SPI_MEM_DATA_OUT)
return -EOPNOTSUPP;
@@ -519,7 +511,7 @@ static int stm32_qspi_dirmap_create(struct spi_mem_dirmap_desc *desc)
static ssize_t stm32_qspi_dirmap_read(struct spi_mem_dirmap_desc *desc,
u64 offs, size_t len, void *buf)
{
- struct stm32_qspi *qspi = spi_controller_get_devdata(desc->mem->spi->master);
+ struct stm32_qspi *qspi = spi_controller_get_devdata(desc->mem->spi->controller);
struct spi_mem_op op;
u32 addr_max;
int ret;
@@ -549,7 +541,6 @@ static ssize_t stm32_qspi_dirmap_read(struct spi_mem_dirmap_desc *desc,
ret = stm32_qspi_send(desc->mem->spi, &op);
mutex_unlock(&qspi->lock);
- pm_runtime_mark_last_busy(qspi->dev);
pm_runtime_put_autosuspend(qspi->dev);
return ret ?: len;
@@ -564,7 +555,7 @@ static int stm32_qspi_transfer_one_message(struct spi_controller *ctrl,
struct spi_mem_op op;
int ret = 0;
- if (!spi->cs_gpiod)
+ if (!spi_get_csgpiod(spi, 0))
return -EOPNOTSUPP;
ret = pm_runtime_resume_and_get(qspi->dev);
@@ -573,7 +564,7 @@ static int stm32_qspi_transfer_one_message(struct spi_controller *ctrl,
mutex_lock(&qspi->lock);
- gpiod_set_value_cansleep(spi->cs_gpiod, true);
+ gpiod_set_value_cansleep(spi_get_csgpiod(spi, 0), true);
list_for_each_entry(transfer, &msg->transfers, transfer_list) {
u8 dummy_bytes = 0;
@@ -626,14 +617,13 @@ static int stm32_qspi_transfer_one_message(struct spi_controller *ctrl,
}
end_of_transfer:
- gpiod_set_value_cansleep(spi->cs_gpiod, false);
+ gpiod_set_value_cansleep(spi_get_csgpiod(spi, 0), false);
mutex_unlock(&qspi->lock);
msg->status = ret;
spi_finalize_current_message(ctrl);
- pm_runtime_mark_last_busy(qspi->dev);
pm_runtime_put_autosuspend(qspi->dev);
return ret;
@@ -641,7 +631,7 @@ end_of_transfer:
static int stm32_qspi_setup(struct spi_device *spi)
{
- struct spi_controller *ctrl = spi->master;
+ struct spi_controller *ctrl = spi->controller;
struct stm32_qspi *qspi = spi_controller_get_devdata(ctrl);
struct stm32_qspi_flash *flash;
u32 presc, mode;
@@ -654,9 +644,7 @@ static int stm32_qspi_setup(struct spi_device *spi)
return -EINVAL;
mode = spi->mode & (SPI_TX_OCTAL | SPI_RX_OCTAL);
- if ((mode == SPI_TX_OCTAL || mode == SPI_RX_OCTAL) ||
- ((mode == (SPI_TX_OCTAL | SPI_RX_OCTAL)) &&
- gpiod_count(qspi->dev, "cs") == -ENOENT)) {
+ if (mode && gpiod_count(qspi->dev, "cs") == -ENOENT) {
dev_err(qspi->dev, "spi-rx-bus-width\\/spi-tx-bus-width\\/cs-gpios\n");
dev_err(qspi->dev, "configuration not supported\n");
@@ -669,18 +657,18 @@ static int stm32_qspi_setup(struct spi_device *spi)
presc = DIV_ROUND_UP(qspi->clk_rate, spi->max_speed_hz) - 1;
- flash = &qspi->flash[spi->chip_select];
- flash->cs = spi->chip_select;
+ flash = &qspi->flash[spi_get_chipselect(spi, 0)];
+ flash->cs = spi_get_chipselect(spi, 0);
flash->presc = presc;
mutex_lock(&qspi->lock);
qspi->cr_reg = CR_APMS | 3 << CR_FTHRES_SHIFT | CR_SSHIFT | CR_EN;
/*
- * Dual flash mode is only enable in case SPI_TX_OCTAL and SPI_TX_OCTAL
- * are both set in spi->mode and "cs-gpios" properties is found in DT
+ * Dual flash mode is only enable in case SPI_TX_OCTAL or SPI_RX_OCTAL
+ * is set in spi->mode and "cs-gpios" properties is found in DT
*/
- if (mode == (SPI_TX_OCTAL | SPI_RX_OCTAL)) {
+ if (mode) {
qspi->cr_reg |= CR_DFM;
dev_dbg(qspi->dev, "Dual flash mode enable");
}
@@ -692,7 +680,6 @@ static int stm32_qspi_setup(struct spi_device *spi)
writel_relaxed(qspi->dcr_reg, qspi->io_base + QSPI_DCR);
mutex_unlock(&qspi->lock);
- pm_runtime_mark_last_busy(qspi->dev);
pm_runtime_put_autosuspend(qspi->dev);
return 0;
@@ -776,7 +763,7 @@ static int stm32_qspi_probe(struct platform_device *pdev)
struct resource *res;
int ret, irq;
- ctrl = devm_spi_alloc_master(dev, sizeof(*qspi));
+ ctrl = devm_spi_alloc_host(dev, sizeof(*qspi));
if (!ctrl)
return -ENOMEM;
@@ -862,11 +849,10 @@ static int stm32_qspi_probe(struct platform_device *pdev)
pm_runtime_enable(dev);
pm_runtime_get_noresume(dev);
- ret = spi_register_master(ctrl);
+ ret = spi_register_controller(ctrl);
if (ret)
goto err_pm_runtime_free;
- pm_runtime_mark_last_busy(dev);
pm_runtime_put_autosuspend(dev);
return 0;
@@ -888,12 +874,12 @@ err_clk_disable:
return ret;
}
-static int stm32_qspi_remove(struct platform_device *pdev)
+static void stm32_qspi_remove(struct platform_device *pdev)
{
struct stm32_qspi *qspi = platform_get_drvdata(pdev);
pm_runtime_get_sync(qspi->dev);
- spi_unregister_master(qspi->ctrl);
+ spi_unregister_controller(qspi->ctrl);
/* disable qspi */
writel_relaxed(0, qspi->io_base + QSPI_CR);
stm32_qspi_dma_free(qspi);
@@ -903,8 +889,6 @@ static int stm32_qspi_remove(struct platform_device *pdev)
pm_runtime_set_suspended(qspi->dev);
pm_runtime_dont_use_autosuspend(qspi->dev);
clk_disable_unprepare(qspi->clk);
-
- return 0;
}
static int __maybe_unused stm32_qspi_runtime_suspend(struct device *dev)
@@ -948,7 +932,6 @@ static int __maybe_unused stm32_qspi_resume(struct device *dev)
writel_relaxed(qspi->cr_reg, qspi->io_base + QSPI_CR);
writel_relaxed(qspi->dcr_reg, qspi->io_base + QSPI_DCR);
- pm_runtime_mark_last_busy(dev);
pm_runtime_put_autosuspend(dev);
return 0;
@@ -968,7 +951,7 @@ MODULE_DEVICE_TABLE(of, stm32_qspi_match);
static struct platform_driver stm32_qspi_driver = {
.probe = stm32_qspi_probe,
- .remove = stm32_qspi_remove,
+ .remove = stm32_qspi_remove,
.driver = {
.name = "stm32-qspi",
.of_match_table = stm32_qspi_match,
generated by cgit (git 2.34.1) at 2025-12-21 18:37:07 +0000