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-rw-r--r--target/linux/ipq806x/patches/0075-spi-qup-Correct-selection-of-FIFO-Block-mode.patch39
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
+