linux-kernel - [PATCH v2 5/5] spi: s3c64xx: use unsigned type for fifo handling variables

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Date:	Tue, 28 Jun 2016 11:41:15 +0900
From:	Andi Shyti <andi.shyti@...sung.com>
To:	Kukjin Kim <kgene@...nel.org>,
	Krzysztof Kozlowski <k.kozlowski@...sung.com>,
	Mark Brown <broonie@...nel.org>
Cc:	Jaehoon Chung <jh80.chung@...sung.com>,
	linux-arm-kernel@...ts.infradead.org,
	linux-samsung-soc@...r.kernel.org, linux-spi@...r.kernel.org,
	linux-kernel@...r.kernel.org, Andi Shyti <andi.shyti@...sung.com>,
	Andi Shyti <andi@...zian.org>
Subject: [PATCH v2 5/5] spi: s3c64xx: use unsigned type for fifo handling
 variables

The 'quirks' variable cannot ever be negative, therefore use u8
instead of int. The 8 bit size is given from the fact that
currently the quirks variable has very few statuses.

The rx_lvl_offset and tx_st_done store shift values, so that u8
is a proper size.

fifo_lvl_mask stores a series of masks, to be in we will keep the
32 bit size.

Signed-off-by: Andi Shyti <andi.shyti@...sung.com>
Signed-off-by: Jaehoon Chung <jh80.chung@...sung.com>
---
 drivers/spi/spi-s3c64xx.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
index 6d8486f..6c9503a 100644
--- a/drivers/spi/spi-s3c64xx.c
+++ b/drivers/spi/spi-s3c64xx.c
@@ -150,10 +150,10 @@ struct s3c64xx_spi_dma_data {
  * which is provided as driver data to the driver.
  */
 struct s3c64xx_spi_port_config {
-	int	fifo_lvl_mask[MAX_SPI_PORTS];
-	int	rx_lvl_offset;
-	int	tx_st_done;
-	int	quirks;
+	u32	fifo_lvl_mask[MAX_SPI_PORTS];
+	u8	rx_lvl_offset;
+	u8	tx_st_done;
+	u8	quirks;
 	bool	high_speed;
 	bool	clk_from_cmu;
 };
-- 
2.8.1