ASoC: ux500: ux500_msp_i2s: Remove unused variables 'reg_val_DR' and 'reg_val_TSTDR'

Looks like these have been unchecked since the driver's inception in 2012.

Fixes the following W=1 kernel build warning(s):

sound/soc/ux500/ux500_msp_i2s.c: In function ‘flush_fifo_rx’:
sound/soc/ux500/ux500_msp_i2s.c:398:6: warning: variable ‘reg_val_DR’
set but not used [-Wunused-but-set-variable]
sound/soc/ux500/ux500_msp_i2s.c: In function ‘flush_fifo_tx’:
sound/soc/ux500/ux500_msp_i2s.c:415:6: warning: variable
‘reg_val_TSTDR’ set but not used [-Wunused-but-set-variable]

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Cc: zhong jiang <zhongjiang@huawei.com>
Cc: Ola Lilja <ola.o.lilja@stericsson.com>
Cc: Roger Nilsson <roger.xr.nilsson@stericsson.com>
Cc: Sandeep Kaushik <sandeep.kaushik@st.com>
Link: https://lore.kernel.org/r/20200709162328.259586-7-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/ux500/ux500_msp_i2s.c b/sound/soc/ux500/ux500_msp_i2s.c
index 394d8b2a4a1619cc8b8c43ff5aa67a11949ce92a..fd0b88bb7921266097dc450bcfe6e44ac6bee549 100644 (file)
--- a/sound/soc/ux500/ux500_msp_i2s.c
+++ b/sound/soc/ux500/ux500_msp_i2s.c
@@ -395,7 +395,7 @@ static int enable_msp(struct ux500_msp *msp, struct ux500_msp_config *config)
 
 static void flush_fifo_rx(struct ux500_msp *msp)
 {
-       u32 reg_val_DR, reg_val_GCR, reg_val_FLR;
+       u32 reg_val_GCR, reg_val_FLR;
        u32 limit = 32;
 
        reg_val_GCR = readl(msp->registers + MSP_GCR);
@@ -403,7 +403,7 @@ static void flush_fifo_rx(struct ux500_msp *msp)
 
        reg_val_FLR = readl(msp->registers + MSP_FLR);
        while (!(reg_val_FLR & RX_FIFO_EMPTY) && limit--) {
-               reg_val_DR = readl(msp->registers + MSP_DR);
+               readl(msp->registers + MSP_DR);
                reg_val_FLR = readl(msp->registers + MSP_FLR);
        }
 
@@ -412,7 +412,7 @@ static void flush_fifo_rx(struct ux500_msp *msp)
 
 static void flush_fifo_tx(struct ux500_msp *msp)
 {
-       u32 reg_val_TSTDR, reg_val_GCR, reg_val_FLR;
+       u32 reg_val_GCR, reg_val_FLR;
        u32 limit = 32;
 
        reg_val_GCR = readl(msp->registers + MSP_GCR);
@@ -421,7 +421,7 @@ static void flush_fifo_tx(struct ux500_msp *msp)
 
        reg_val_FLR = readl(msp->registers + MSP_FLR);
        while (!(reg_val_FLR & TX_FIFO_EMPTY) && limit--) {
-               reg_val_TSTDR = readl(msp->registers + MSP_TSTDR);
+               readl(msp->registers + MSP_TSTDR);
                reg_val_FLR = readl(msp->registers + MSP_FLR);
        }
        writel(0x0, msp->registers + MSP_ITCR);