linux-kernel - [PATCH v3 4/8] spi: pxa2xx: Extract clear_SSCR1

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Message-Id: <20210511141725.32097-5-andriy.shevchenko@linux.intel.com>
Date:   Tue, 11 May 2021 17:17:21 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Mark Brown <broonie@...nel.org>,
        linux-arm-kernel@...ts.infradead.org, linux-spi@...r.kernel.org,
        linux-kernel@...r.kernel.org, alsa-devel@...a-project.org
Cc:     Daniel Mack <daniel@...que.org>,
        Haojian Zhuang <haojian.zhuang@...il.com>,
        Robert Jarzmik <robert.jarzmik@...e.fr>,
        Liam Girdwood <lgirdwood@...il.com>,
        Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>
Subject: [PATCH v3 4/8] spi: pxa2xx: Extract clear_SSCR1_bits() helper

There are few places that repeat the logic of "clear some bits in SSCR1".
Extract clear_SSCR1_bits() helper to deduplicate that.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 drivers/spi/spi-pxa2xx-dma.c | 4 +---
 drivers/spi/spi-pxa2xx.c     | 7 ++-----
 drivers/spi/spi-pxa2xx.h     | 5 +++++
 3 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/spi/spi-pxa2xx-dma.c b/drivers/spi/spi-pxa2xx-dma.c
index 5ca01ad7f460..e581027e99f9 100644
--- a/drivers/spi/spi-pxa2xx-dma.c
+++ b/drivers/spi/spi-pxa2xx-dma.c
@@ -41,9 +41,7 @@ static void pxa2xx_spi_dma_transfer_complete(struct driver_data *drv_data,
 		}
 
 		/* Clear status & disable interrupts */
-		pxa2xx_spi_write(drv_data, SSCR1,
-				 pxa2xx_spi_read(drv_data, SSCR1)
-				 & ~drv_data->dma_cr1);
+		clear_SSCR1_bits(drv_data, drv_data->dma_cr1);
 		write_SSSR_CS(drv_data, drv_data->clear_sr);
 		if (!pxa25x_ssp_comp(drv_data))
 			pxa2xx_spi_write(drv_data, SSTO, 0);
diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c
index 54eaa048651f..3a4ad16614f7 100644
--- a/drivers/spi/spi-pxa2xx.c
+++ b/drivers/spi/spi-pxa2xx.c
@@ -733,8 +733,7 @@ static irqreturn_t interrupt_transfer(struct driver_data *drv_data)
 static void handle_bad_msg(struct driver_data *drv_data)
 {
 	pxa2xx_spi_off(drv_data);
-	pxa2xx_spi_write(drv_data, SSCR1,
-			 pxa2xx_spi_read(drv_data, SSCR1) & ~drv_data->int_cr1);
+	clear_SSCR1_bits(drv_data, drv_data->int_cr1);
 	if (!pxa25x_ssp_comp(drv_data))
 		pxa2xx_spi_write(drv_data, SSTO, 0);
 	write_SSSR_CS(drv_data, drv_data->clear_sr);
@@ -1161,9 +1160,7 @@ static void pxa2xx_spi_handle_err(struct spi_controller *controller,
 	pxa2xx_spi_off(drv_data);
 	/* Clear and disable interrupts and service requests */
 	write_SSSR_CS(drv_data, drv_data->clear_sr);
-	pxa2xx_spi_write(drv_data, SSCR1,
-			 pxa2xx_spi_read(drv_data, SSCR1)
-			 & ~(drv_data->int_cr1 | drv_data->dma_cr1));
+	clear_SSCR1_bits(drv_data, drv_data->int_cr1 | drv_data->dma_cr1);
 	if (!pxa25x_ssp_comp(drv_data))
 		pxa2xx_spi_write(drv_data, SSTO, 0);
 
diff --git a/drivers/spi/spi-pxa2xx.h b/drivers/spi/spi-pxa2xx.h
index 739e264feaa6..ed63f7165cd8 100644
--- a/drivers/spi/spi-pxa2xx.h
+++ b/drivers/spi/spi-pxa2xx.h
@@ -105,6 +105,11 @@ static inline int pxa25x_ssp_comp(struct driver_data *drv_data)
 	}
 }
 
+static inline void clear_SSCR1_bits(const struct driver_data *drv_data, u32 bits)
+{
+	pxa2xx_spi_write(drv_data, SSCR1, pxa2xx_spi_read(drv_data, SSCR1) & ~bits);
+}
+
 static inline void write_SSSR_CS(struct driver_data *drv_data, u32 val)
 {
 	if (drv_data->ssp_type == CE4100_SSP ||
-- 
2.30.2