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https://github.com/zephyrproject-rtos/zephyr
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212f5f28ed
This patch fixes RX overflow error in the k64 SPI driver. Jira: ZEP-1351 Jira: ZEP-1352 Several circumstances lead to an RX overflow: The RFOF_RE (RX fifo overflow) must not be set as default. The flag is only set when rx_buf is available. Also it must be checked inside spi_k64_isr whether RFOF_RE has been set or not. If the rx_buf is not available and the incoming data should be ignored, then MCR_ROOE need to be set. Since it is not possible to change the MCR register during the transfer, RX fifo must be emptied if rx_buf_len < tx_buf_len. The driver also uses spi_data.xfer_len now, the variable was already defined. Now, transfers are also possible if tx_buf_len < rx_buf_len (e.g. read slave device register). spi_k64_push_data has been adjusted accordingly. The patch simplifies the handling of interrupts. The interrupts are also switched off in the event of an error. The patch also fixes a few coding style issues. Change-Id: I6ce81f595bb1edbbf2253b6595602896ca652762 Signed-off-by: Johann Fischer <j.fischer@phytec.de> |
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| .. | ||
| adc | ||
| aio | ||
| bluetooth | ||
| clock_control | ||
| console | ||
| counter | ||
| dma | ||
| ethernet | ||
| flash | ||
| gpio | ||
| grove | ||
| i2c | ||
| ieee802154 | ||
| interrupt_controller | ||
| ipm | ||
| pci | ||
| pinmux | ||
| pwm | ||
| random | ||
| rtc | ||
| sensor | ||
| serial | ||
| shared_irq | ||
| spi | ||
| timer | ||
| usb | ||
| watchdog | ||
| Kconfig | ||
| Makefile | ||