[linux-yocto] [PATCH 3/4] Revert "spi: modify spidev_test to test automatic PIO/DMA switching"

[chong . yi . chai]

From: "Chai, Chong Yi" <chong.yi.c...@intel.com>

This reverts commit c4554857d23b4370e4f2051ed05758badc48227b.

Signed-off-by: Chai, Chong Yi <chong.yi.c...@intel.com>
---
 Documentation/spi/spidev_test.c | 21 +--------------------
 1 file changed, 1 insertion(+), 20 deletions(-)

diff --git a/Documentation/spi/spidev_test.c b/Documentation/spi/spidev_test.c
index 85bd71e..16feda9 100644
--- a/Documentation/spi/spidev_test.c
+++ b/Documentation/spi/spidev_test.c
@@ -34,8 +34,6 @@ static uint8_t mode;
 static uint8_t bits = 8;
 static uint32_t speed = 500000;
 static uint16_t delay;
-static uint8_t auto_pio_dma_mode;
-static uint32_t auto_pio_dma_threshold;
 
 static void transfer(int fd)
 {
@@ -57,8 +55,6 @@ static void transfer(int fd)
                .delay_usecs = delay,
                .speed_hz = speed,
                .bits_per_word = bits,
-               .auto_pio_dma_mode = auto_pio_dma_mode,
-               .auto_pio_dma_threshold = auto_pio_dma_threshold,
        };
 
        ret = ioctl(fd, SPI_IOC_MESSAGE(1), &tr);
@@ -85,8 +81,6 @@ static void print_usage(const char *prog)
             "  -O --cpol     clock polarity\n"
             "  -L --lsb      least significant bit first\n"
             "  -C --cs-high  chip select active high\n"
-            "  -P --auto-pio auto switch PIO/DMA mode\n"
-            "  -T --thresh   auto switch PIO/DMA threshold\n"
             "  -3 --3wire    SI/SO signals shared\n");
        exit(1);
 }
@@ -104,8 +98,6 @@ static void parse_opts(int argc, char *argv[])
                        { "cpol",    0, 0, 'O' },
                        { "lsb",     0, 0, 'L' },
                        { "cs-high", 0, 0, 'C' },
-                       { "auto-pio", 0, 0, 'P' },
-                       { "thresh",   1, 0, 'T' },
                        { "3wire",   0, 0, '3' },
                        { "no-cs",   0, 0, 'N' },
                        { "ready",   0, 0, 'R' },
@@ -113,7 +105,7 @@ static void parse_opts(int argc, char *argv[])
                };
                int c;
 
-               c = getopt_long(argc, argv, "D:s:d:b:lHOLCPT:3NR", lopts, NULL);
+               c = getopt_long(argc, argv, "D:s:d:b:lHOLC3NR", lopts, NULL);
 
                if (c == -1)
                        break;
@@ -146,12 +138,6 @@ static void parse_opts(int argc, char *argv[])
                case 'C':
                        mode |= SPI_CS_HIGH;
                        break;
-               case 'P':
-                       auto_pio_dma_mode = 1;
-                       break;
-               case 'T':
-                       auto_pio_dma_threshold = atoi(optarg);
-                       break;
                case '3':
                        mode |= SPI_3WIRE;
                        break;
@@ -215,11 +201,6 @@ int main(int argc, char *argv[])
        printf("spi mode: %d\n", mode);
        printf("bits per word: %d\n", bits);
        printf("max speed: %d Hz (%d KHz)\n", speed, speed/1000);
-       printf("auto switch PIO/DMA: %s\n",
-               auto_pio_dma_mode ? "enabled" : "disabled");
-       if (auto_pio_dma_mode)
-               printf("auto switch PIO/DMA threshold: %d\n",
-                       auto_pio_dma_threshold);
 
        transfer(fd);
 
-- 
1.9.1

-- 
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