diff options
Diffstat (limited to 'target/linux/ipq806x/patches/0068-spi-qup-Convert-ot-let-spi-core-handle-checking-tran.patch')
| -rw-r--r-- | target/linux/ipq806x/patches/0068-spi-qup-Convert-ot-let-spi-core-handle-checking-tran.patch | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/target/linux/ipq806x/patches/0068-spi-qup-Convert-ot-let-spi-core-handle-checking-tran.patch b/target/linux/ipq806x/patches/0068-spi-qup-Convert-ot-let-spi-core-handle-checking-tran.patch new file mode 100644 index 0000000..6914d44 --- /dev/null +++ b/target/linux/ipq806x/patches/0068-spi-qup-Convert-ot-let-spi-core-handle-checking-tran.patch @@ -0,0 +1,69 @@ +From a4b122f945c564e47a42a9665b484785e86648de Mon Sep 17 00:00:00 2001 +From: Axel Lin <axel.lin@ingics.com> +Date: Fri, 21 Feb 2014 09:34:16 +0800 +Subject: [PATCH 068/182] spi: qup: Convert ot let spi core handle checking + transfer speed + +Set master->max_speed_hz then spi core will handle checking transfer speed. +So we can remove the same checking in this driver. + +Also remove checking spi->chip_select in spi_qup_setup(), the checking is done +by spi core. + +Signed-off-by: Axel Lin <axel.lin@ingics.com> +Acked-by: Ivan T. Ivanov <iivanov@mm-sol.com> +Signed-off-by: Mark Brown <broonie@linaro.org> +--- + drivers/spi/spi-qup.c | 15 +-------------- + 1 file changed, 1 insertion(+), 14 deletions(-) + +diff --git a/drivers/spi/spi-qup.c b/drivers/spi/spi-qup.c +index 5edc56f..dec339d 100644 +--- a/drivers/spi/spi-qup.c ++++ b/drivers/spi/spi-qup.c +@@ -134,7 +134,6 @@ struct spi_qup { + struct clk *cclk; /* core clock */ + struct clk *iclk; /* interface clock */ + int irq; +- u32 max_speed_hz; + spinlock_t lock; + + int in_fifo_sz; +@@ -517,18 +516,6 @@ static int spi_qup_setup(struct spi_device *spi) + struct spi_qup *controller = spi_master_get_devdata(spi->master); + struct spi_qup_device *chip = spi_get_ctldata(spi); + +- if (spi->chip_select >= spi->master->num_chipselect) { +- dev_err(controller->dev, "invalid chip_select %d\n", +- spi->chip_select); +- return -EINVAL; +- } +- +- if (spi->max_speed_hz > controller->max_speed_hz) { +- dev_err(controller->dev, "invalid max_speed_hz %d\n", +- spi->max_speed_hz); +- return -EINVAL; +- } +- + if (!chip) { + /* First setup */ + chip = kzalloc(sizeof(*chip), GFP_KERNEL); +@@ -629,6 +616,7 @@ static int spi_qup_probe(struct platform_device *pdev) + master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH | SPI_LOOP; + master->num_chipselect = SPI_NUM_CHIPSELECTS; + master->bits_per_word_mask = SPI_BPW_RANGE_MASK(4, 32); ++ master->max_speed_hz = max_freq; + master->setup = spi_qup_setup; + master->cleanup = spi_qup_cleanup; + master->set_cs = spi_qup_set_cs; +@@ -645,7 +633,6 @@ static int spi_qup_probe(struct platform_device *pdev) + controller->iclk = iclk; + controller->cclk = cclk; + controller->irq = irq; +- controller->max_speed_hz = max_freq; + + spin_lock_init(&controller->lock); + init_completion(&controller->done); +-- +1.7.10.4 + |