linux-kernel - Applied "spi: spi-ep93xx: absorb the interrupt enable/disable helpers" to the spi tree

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Message-Id: <E1dfUID-0005WK-NK@debutante>
Date:   Wed, 09 Aug 2017 17:57:13 +0100
From:   Mark Brown <broonie@...nel.org>
To:     H Hartley Sweeten <hsweeten@...ionengravers.com>
Cc:     Chris Packham <chris.packham@...iedtelesis.co.nz>,
        Mark Brown <broonie@...nel.org>, broonie@...nel.org,
        linux-spi@...r.kernel.org, linux-kernel@...r.kernel.org,
        andy.shevchenko@...il.com, hsweeten@...ionengravers.com,
        Chris Packham <chris.packham@...iedtelesis.co.nz>,
        linux-spi@...r.kernel.org
Subject: Applied "spi: spi-ep93xx: absorb the interrupt enable/disable helpers" to the spi tree

The patch

   spi: spi-ep93xx: absorb the interrupt enable/disable helpers

has been applied to the spi tree at

   git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git 

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.  

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark

>From ac8d06df9a1f40a9feb759dd7ef5664328ae7694 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@...ionengravers.com>
Date: Wed, 9 Aug 2017 08:51:28 +1200
Subject: [PATCH] spi: spi-ep93xx: absorb the interrupt enable/disable helpers

These are each only called once. Just absorb them into the callers.

Signed-off-by: H Hartley Sweeten <hsweeten@...ionengravers.com>
[chris: use u32 instead of unsigned int]
Signed-off-by: Chris Packham <chris.packham@...iedtelesis.co.nz>
Reviewed-by: Andy Shevchenko <andy.shevchenko@...il.com>
Signed-off-by: Mark Brown <broonie@...nel.org>
---
 drivers/spi/spi-ep93xx.c | 32 ++++++++++++--------------------
 1 file changed, 12 insertions(+), 20 deletions(-)

diff --git a/drivers/spi/spi-ep93xx.c b/drivers/spi/spi-ep93xx.c
index ce6ec164f2f2..041842e0d028 100644
--- a/drivers/spi/spi-ep93xx.c
+++ b/drivers/spi/spi-ep93xx.c
@@ -111,24 +111,6 @@ struct ep93xx_spi {
 /* converts bits per word to CR0.DSS value */
 #define bits_per_word_to_dss(bpw)	((bpw) - 1)
 
-static void ep93xx_spi_enable_interrupts(const struct ep93xx_spi *espi)
-{
-	u32 val;
-
-	val = readl(espi->mmio + SSPCR1);
-	val |= (SSPCR1_RORIE | SSPCR1_TIE | SSPCR1_RIE);
-	writel(val, espi->mmio + SSPCR1);
-}
-
-static void ep93xx_spi_disable_interrupts(const struct ep93xx_spi *espi)
-{
-	u32 val;
-
-	val = readl(espi->mmio + SSPCR1);
-	val &= ~(SSPCR1_RORIE | SSPCR1_TIE | SSPCR1_RIE);
-	writel(val, espi->mmio + SSPCR1);
-}
-
 /**
  * ep93xx_spi_calc_divisors() - calculates SPI clock divisors
  * @espi: ep93xx SPI controller struct
@@ -282,7 +264,12 @@ static void ep93xx_spi_pio_transfer(struct ep93xx_spi *espi)
 	 * FIFO, enable interrupts, and wait for the transfer to complete.
 	 */
 	if (ep93xx_spi_read_write(espi)) {
-		ep93xx_spi_enable_interrupts(espi);
+		u32 val;
+
+		val = readl(espi->mmio + SSPCR1);
+		val |= (SSPCR1_RORIE | SSPCR1_TIE | SSPCR1_RIE);
+		writel(val, espi->mmio + SSPCR1);
+
 		wait_for_completion(&espi->wait);
 	}
 }
@@ -604,6 +591,7 @@ static int ep93xx_spi_transfer_one_message(struct spi_master *master,
 static irqreturn_t ep93xx_spi_interrupt(int irq, void *dev_id)
 {
 	struct ep93xx_spi *espi = dev_id;
+	u32 val;
 
 	/*
 	 * If we got ROR (receive overrun) interrupt we know that something is
@@ -635,8 +623,12 @@ static irqreturn_t ep93xx_spi_interrupt(int irq, void *dev_id)
 	 * any case we disable interrupts and notify the worker to handle
 	 * any post-processing of the message.
 	 */
-	ep93xx_spi_disable_interrupts(espi);
+	val = readl(espi->mmio + SSPCR1);
+	val &= ~(SSPCR1_RORIE | SSPCR1_TIE | SSPCR1_RIE);
+	writel(val, espi->mmio + SSPCR1);
+
 	complete(&espi->wait);
+
 	return IRQ_HANDLED;
 }
 
-- 
2.13.3