From ba96e9449a63acd658d8ad0a5b3755b559410999 Mon Sep 17 00:00:00 2001 From: Matthew McClintock Date: Thu, 10 Mar 2016 16:48:27 -0600 Subject: [PATCH 11/37] spi: qup: don't re-read opflags to see if transaction is done for reads For reads, we will get another interrupt so we need to handle things then. For writes, we can finish up now. Signed-off-by: Matthew McClintock --- drivers/spi/spi-qup.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/drivers/spi/spi-qup.c +++ b/drivers/spi/spi-qup.c @@ -567,7 +567,8 @@ static irqreturn_t spi_qup_qup_irq(int i } /* re-read opflags as flags may have changed due to actions above */ - opflags = readl_relaxed(controller->base + QUP_OPERATIONAL); + if (opflags & QUP_OP_OUT_SERVICE_FLAG) + opflags = readl_relaxed(controller->base + QUP_OPERATIONAL); if ((controller->rx_bytes == xfer->len && (opflags & QUP_OP_MAX_INPUT_DONE_FLAG)) || error)