Fixes SPI mode setting (Issue espressif#1094) (espressif#1096)

Fixes espressif#1094

Author: kroggen

cores/esp32/esp32-hal-spi.c

@@ -309,9 +309,9 @@ uint8_t spiGetDataMode(spi_t * spi)
  bool outEdge = spi->dev->user.ck_out_edge;
  if(idleEdge) {
  if(outEdge) {
- return SPI_MODE3;
+ return SPI_MODE2;
  }
- return SPI_MODE2;
+ return SPI_MODE3;
  }
  if(outEdge) {
  return SPI_MODE1;
@@ -713,11 +713,11 @@ void spiTransaction(spi_t * spi, uint32_t clockDiv, uint8_t dataMode, uint8_t bi
  break;
  case SPI_MODE2:
  spi->dev->pin.ck_idle_edge = 1;
- spi->dev->user.ck_out_edge = 0;
+ spi->dev->user.ck_out_edge = 1;
  break;
  case SPI_MODE3:
  spi->dev->pin.ck_idle_edge = 1;
- spi->dev->user.ck_out_edge = 1;
+ spi->dev->user.ck_out_edge = 0;
  break;
  case SPI_MODE0:
  default: