#include <linux/device.h>
#include <linux/ioport.h>
#include <linux/errno.h>
+#include <linux/err.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/spi/pxa2xx_spi.h>
#define LPSS_TX_HITHRESH_DFLT 224
/* Offset from drv_data->lpss_base */
+#define SSP_REG 0x0c
#define SPI_CS_CONTROL 0x18
#define SPI_CS_CONTROL_SW_MODE BIT(0)
#define SPI_CS_CONTROL_CS_HIGH BIT(1)
/* Enable software chip select control */
value = SPI_CS_CONTROL_SW_MODE | SPI_CS_CONTROL_CS_HIGH;
__lpss_ssp_write_priv(drv_data, SPI_CS_CONTROL, value);
+
+ /* Enable multiblock DMA transfers */
+ if (drv_data->master_info->enable_dma)
+ __lpss_ssp_write_priv(drv_data, SSP_REG, 1);
}
static void lpss_ssp_cs_control(struct driver_data *drv_data, bool enable)
ssp = &pdata->ssp;
ssp->phys_base = res->start;
- ssp->mmio_base = devm_request_and_ioremap(&pdev->dev, res);
- if (!ssp->mmio_base) {
- dev_err(&pdev->dev, "failed to ioremap mmio_base\n");
- return NULL;
- }
+ ssp->mmio_base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(ssp->mmio_base))
+ return PTR_ERR(ssp->mmio_base);
ssp->clk = devm_clk_get(&pdev->dev, NULL);
ssp->irq = platform_get_irq(pdev, 0);