target/linux/ipq806x/patches/0075-spi-qup-Correct-selection-of-FIFO-Block-mode.patch

   1 From e8e77359524e6629bac68db4183694fccffaed8e Mon Sep 17 00:00:00 2001
   2 From: Andy Gross <agross@codeaurora.org>
   3 Date: Tue, 13 May 2014 16:34:42 -0500
   4 Subject: [PATCH 075/182] spi: qup: Correct selection of FIFO/Block mode
   5
   6 This patch fixes the calculation for determining whether to use FIFO or BLOCK
   7 mode.
   8
   9 Signed-off-by: Andy Gross <agross@codeaurora.org>
  10 Signed-off-by: Mark Brown <broonie@linaro.org>
  11 ---
  12  drivers/spi/spi-qup.c |    4 ++--
  13  1 file changed, 2 insertions(+), 2 deletions(-)
  14
  15 diff --git a/drivers/spi/spi-qup.c b/drivers/spi/spi-qup.c
  16 index b032e88..65bf18e 100644
  17 --- a/drivers/spi/spi-qup.c
  18 +++ b/drivers/spi/spi-qup.c
  19 @@ -287,7 +287,7 @@ static irqreturn_t spi_qup_qup_irq(int irq, void *dev_id)
  20         writel_relaxed(opflags, controller->base + QUP_OPERATIONAL);
  21
  22         if (!xfer) {
  23 -               dev_err_ratelimited(controller->dev, "unexpected irq %x08 %x08 %x08\n",
  24 +               dev_err_ratelimited(controller->dev, "unexpected irq %08x %08x %08x\n",
  25                                     qup_err, spi_err, opflags);
  26                 return IRQ_HANDLED;
  27         }
  28 @@ -366,7 +366,7 @@ static int spi_qup_io_config(struct spi_device *spi, struct spi_transfer *xfer)
  29         n_words = xfer->len / w_size;
  30         controller->w_size = w_size;
  31
  32 -       if (n_words <= controller->in_fifo_sz) {
  33 +       if (n_words <= (controller->in_fifo_sz / sizeof(u32))) {
  34                 mode = QUP_IO_M_MODE_FIFO;
  35                 writel_relaxed(n_words, controller->base + QUP_MX_READ_CNT);
  36                 writel_relaxed(n_words, controller->base + QUP_MX_WRITE_CNT);
  37 --
  38 1.7.10.4
  39