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authorMike Fiore <mfiore@multitech.com>2014-10-08 10:38:26 -0500
committerMike Fiore <mfiore@multitech.com>2014-10-08 10:38:26 -0500
commit72412963e66f4a2448fd87f455b33f3a5115f4bd (patch)
treeb4d91a4a929356571fda47baafc600c11f842348 /io-module/mtac_gpiob.c
parentb4e12fd5092d6de675da8c6a3629a23dcb5a34f2 (diff)
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mts-io: remove all unused spi and adc code from mtcdp
remote board-temperature attribute
Diffstat (limited to 'io-module/mtac_gpiob.c')
-rw-r--r--io-module/mtac_gpiob.c37
1 files changed, 37 insertions, 0 deletions
diff --git a/io-module/mtac_gpiob.c b/io-module/mtac_gpiob.c
index 3f9631d..0485494 100644
--- a/io-module/mtac_gpiob.c
+++ b/io-module/mtac_gpiob.c
@@ -30,6 +30,43 @@ static bool gpiob_get_dev_info_from_modalias(const char* modalias, int* port, ch
return true;
}
+/* Generic SPI functions */
+static inline int spi_writen(struct spi_device *spi, const u8 *buf, size_t len)
+{
+ int tmp;
+ u8 *tx;
+
+ tx = kmalloc(len, GFP_KERNEL);
+ if (!tx) {
+ return -ENOMEM;
+ }
+
+ memcpy(tx, buf, len);
+ tmp = spi_write(spi, tx, len);
+
+ kfree(tx);
+
+ return tmp;
+}
+
+static inline int spi_readn(struct spi_device *spi, u8 *buf, size_t len)
+{
+ int tmp;
+ u8 *rx;
+
+ rx = kmalloc(len, GFP_KERNEL);
+ if (!rx) {
+ return -ENOMEM;
+ }
+
+ tmp = spi_read(spi, rx, len);
+ memcpy(buf, rx, len);
+
+ kfree(rx);
+
+ return tmp;
+}
+
static int mts_spi_ap_probe(struct spi_device *spi)
{
int tmp;