summaryrefslogtreecommitdiffstats
path: root/drivers/spi/spi-stm32-qspi.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2019-07-09 09:17:59 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2019-07-09 09:17:59 -0700
commitc6b6cebbc597aaf7d941f781b5fc114c58cc3352 (patch)
treea99ad03f0f53552338db140f34c325e47c6b54e4 /drivers/spi/spi-stm32-qspi.c
parent98537ee92fb1b17a7f36dcbc8d2e4087af300da6 (diff)
parent26ac56506b0ea598bd0b52dcbd2d697282af98ed (diff)
downloadlinux-c6b6cebbc597aaf7d941f781b5fc114c58cc3352.tar.bz2
Merge tag 'spi-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi updates from Mark Brown: "For the most part this is a quiet release for SPI, though there's several of the more widely used drivers that have had some fairly substantial development done on them, mainly improving performance and adding support for some more obscure use cases. Summary: - Support for configuring a minimum time for chip select to be deasserted between transfers from Martin Sperl. - A rework of the ACPI device instantiation code from Ard Biesheuvel. - Fairly substantial development on the AT91 USART, BCM2835 and Tegra114 drivers. - New driver for Socionext SynQuacer" * tag 'spi-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (58 commits) spi: pxa2xx: Add support for Intel Elkhart Lake spi: atmel-quadspi: fix resume call spi: atmel-quadspi: void return type for atmel_qspi_init() spi: pxa2xx: Set minimum transfer speed spi: stm32-qspi: remove signal sensitive on completion dt-bindings: spi: stm32-qspi: add dma properties spi: uniphier: fix zero-length transfer spi: uniphier: fix timeout error spi/acpi: avoid spurious matches during slave enumeration spi: spi-stm32-qspi: Remove CR_FTHRES_MASK usage spi: fix ctrl->num_chipselect constraint spi: spi-synquacer: Fixed build on architectures missing readsl/writesl series spi/acpi: fix incorrect ACPI parent check spi: don't open code list_for_each_entry_safe_reverse() spi: No need to assign dummy value in spi_unregister_controller() spi: Add a prototype for exported spi_set_cs_timing() spi/acpi: enumerate all SPI slaves in the namespace spi: qup: fix PIO/DMA transfers. spi: Use struct_size() helper spi: mediatek: add SPI_LSB_FIRST support ...
Diffstat (limited to 'drivers/spi/spi-stm32-qspi.c')
-rw-r--r--drivers/spi/spi-stm32-qspi.c14
1 files changed, 5 insertions, 9 deletions
diff --git a/drivers/spi/spi-stm32-qspi.c b/drivers/spi/spi-stm32-qspi.c
index 42f8e3c6aa1f..655e4afbfb2a 100644
--- a/drivers/spi/spi-stm32-qspi.c
+++ b/drivers/spi/spi-stm32-qspi.c
@@ -29,7 +29,7 @@
#define CR_SSHIFT BIT(4)
#define CR_DFM BIT(6)
#define CR_FSEL BIT(7)
-#define CR_FTHRES_MASK GENMASK(12, 8)
+#define CR_FTHRES_SHIFT 8
#define CR_TEIE BIT(16)
#define CR_TCIE BIT(17)
#define CR_FTIE BIT(18)
@@ -245,12 +245,8 @@ static int stm32_qspi_tx_dma(struct stm32_qspi *qspi,
writel_relaxed(cr | CR_DMAEN, qspi->io_base + QSPI_CR);
t_out = sgt.nents * STM32_COMP_TIMEOUT_MS;
- if (!wait_for_completion_interruptible_timeout(&qspi->dma_completion,
- msecs_to_jiffies(t_out)))
- err = -ETIMEDOUT;
-
- if (dma_async_is_tx_complete(dma_ch, cookie,
- NULL, NULL) != DMA_COMPLETE)
+ if (!wait_for_completion_timeout(&qspi->dma_completion,
+ msecs_to_jiffies(t_out)))
err = -ETIMEDOUT;
if (err)
@@ -304,7 +300,7 @@ static int stm32_qspi_wait_cmd(struct stm32_qspi *qspi,
cr = readl_relaxed(qspi->io_base + QSPI_CR);
writel_relaxed(cr | CR_TCIE | CR_TEIE, qspi->io_base + QSPI_CR);
- if (!wait_for_completion_interruptible_timeout(&qspi->data_completion,
+ if (!wait_for_completion_timeout(&qspi->data_completion,
msecs_to_jiffies(STM32_COMP_TIMEOUT_MS))) {
err = -ETIMEDOUT;
} else {
@@ -463,7 +459,7 @@ static int stm32_qspi_setup(struct spi_device *spi)
flash->presc = presc;
mutex_lock(&qspi->lock);
- qspi->cr_reg = FIELD_PREP(CR_FTHRES_MASK, 3) | CR_SSHIFT | CR_EN;
+ qspi->cr_reg = 3 << CR_FTHRES_SHIFT | CR_SSHIFT | CR_EN;
writel_relaxed(qspi->cr_reg, qspi->io_base + QSPI_CR);
/* set dcr fsize to max address */