diff options
Diffstat (limited to 'target/linux/ipq806x/patches/0075-spi-qup-Correct-selection-of-FIFO-Block-mode.patch')
| -rw-r--r-- | target/linux/ipq806x/patches/0075-spi-qup-Correct-selection-of-FIFO-Block-mode.patch | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/target/linux/ipq806x/patches/0075-spi-qup-Correct-selection-of-FIFO-Block-mode.patch b/target/linux/ipq806x/patches/0075-spi-qup-Correct-selection-of-FIFO-Block-mode.patch new file mode 100644 index 0000000000..f1071dbea1 --- /dev/null +++ b/target/linux/ipq806x/patches/0075-spi-qup-Correct-selection-of-FIFO-Block-mode.patch @@ -0,0 +1,39 @@ +From e8e77359524e6629bac68db4183694fccffaed8e Mon Sep 17 00:00:00 2001 +From: Andy Gross <agross@codeaurora.org> +Date: Tue, 13 May 2014 16:34:42 -0500 +Subject: [PATCH 075/182] spi: qup: Correct selection of FIFO/Block mode + +This patch fixes the calculation for determining whether to use FIFO or BLOCK +mode. + +Signed-off-by: Andy Gross <agross@codeaurora.org> +Signed-off-by: Mark Brown <broonie@linaro.org> +--- + drivers/spi/spi-qup.c | 4 ++-- + 1 file changed, 2 insertions(+), 2 deletions(-) + +diff --git a/drivers/spi/spi-qup.c b/drivers/spi/spi-qup.c +index b032e88..65bf18e 100644 +--- a/drivers/spi/spi-qup.c ++++ b/drivers/spi/spi-qup.c +@@ -287,7 +287,7 @@ static irqreturn_t spi_qup_qup_irq(int irq, void *dev_id) + writel_relaxed(opflags, controller->base + QUP_OPERATIONAL); + + if (!xfer) { +- dev_err_ratelimited(controller->dev, "unexpected irq %x08 %x08 %x08\n", ++ dev_err_ratelimited(controller->dev, "unexpected irq %08x %08x %08x\n", + qup_err, spi_err, opflags); + return IRQ_HANDLED; + } +@@ -366,7 +366,7 @@ static int spi_qup_io_config(struct spi_device *spi, struct spi_transfer *xfer) + n_words = xfer->len / w_size; + controller->w_size = w_size; + +- if (n_words <= controller->in_fifo_sz) { ++ if (n_words <= (controller->in_fifo_sz / sizeof(u32))) { + mode = QUP_IO_M_MODE_FIFO; + writel_relaxed(n_words, controller->base + QUP_MX_READ_CNT); + writel_relaxed(n_words, controller->base + QUP_MX_WRITE_CNT); +-- +1.7.10.4 + |