spi: pxa2xx: Remove pointer to current SPI message from driver data

There is no need to carry pointer to current SPI message in driver data
because cur_msg in struct spi_master holds it already when driver is using
the message queueing infrastructure from the SPI core.

Signed-off-by: Jarkko Nikula <[e-mail]>
Signed-off-by: Mark Brown <[e-mail]>

drivers/spi/spi-pxa2xx-dma.c

···
 static void pxa2xx_spi_dma_transfer_complete(struct driver_data *drv_data,
 					     bool error)
 {
-	struct spi_message *msg = drv_data->cur_msg;
+	struct spi_message *msg = drv_data->master->cur_msg;
 
 	/*
 	 * It is possible that one CPU is handling ROR interrupt and other

drivers/spi/spi-pxa2xx.c

···
 
 	value = __lpss_ssp_read_priv(drv_data, config->reg_cs_ctrl);
 
-	cs = drv_data->cur_msg->spi->chip_select;
+	cs = drv_data->master->cur_msg->spi->chip_select;
 	cs <<= config->cs_sel_shift;
 	if (cs != (value & config->cs_sel_mask)) {
 		/*
···
 
 void *pxa2xx_spi_next_transfer(struct driver_data *drv_data)
 {
-	struct spi_message *msg = drv_data->cur_msg;
+	struct spi_message *msg = drv_data->master->cur_msg;
 	struct spi_transfer *trans = drv_data->cur_transfer;
 
 	/* Move to next transfer */
···
 	struct spi_message *msg;
 	unsigned long timeout;
 
-	msg = drv_data->cur_msg;
-	drv_data->cur_msg = NULL;
+	msg = drv_data->master->cur_msg;
 	drv_data->cur_transfer = NULL;
 
 	last_transfer = list_last_entry(&msg->transfers, struct spi_transfer,
···
 
 	dev_err(&drv_data->pdev->dev, "%s\n", msg);
 
-	drv_data->cur_msg->state = ERROR_STATE;
+	drv_data->master->cur_msg->state = ERROR_STATE;
 	tasklet_schedule(&drv_data->pump_transfers);
 }
 
···
 		pxa2xx_spi_write(drv_data, SSTO, 0);
 
 	/* Update total byte transferred return count actual bytes read */
-	drv_data->cur_msg->actual_length += drv_data->len -
+	drv_data->master->cur_msg->actual_length += drv_data->len -
 				(drv_data->rx_end - drv_data->rx);
 
 	/* Transfer delays and chip select release are
···
 	 */
 
 	/* Move to next transfer */
-	drv_data->cur_msg->state = pxa2xx_spi_next_transfer(drv_data);
+	drv_data->master->cur_msg->state = pxa2xx_spi_next_transfer(drv_data);
 
 	/* Schedule transfer tasklet */
 	tasklet_schedule(&drv_data->pump_transfers);
···
 	if (!(status & mask))
 		return IRQ_NONE;
 
-	if (!drv_data->cur_msg) {
+	if (!drv_data->master->cur_msg) {
 
 		pxa2xx_spi_write(drv_data, SSCR0,
 				 pxa2xx_spi_read(drv_data, SSCR0)
···
 {
 	struct driver_data *drv_data = (struct driver_data *)data;
 	struct spi_master *master = drv_data->master;
-	struct spi_message *message;
+	struct spi_message *message = master->cur_msg;
 	struct spi_transfer *transfer;
 	struct spi_transfer *previous;
 	struct chip_data *chip;
···
 	int dma_mapped;
 
 	/* Get current state information */
-	message = drv_data->cur_msg;
 	transfer = drv_data->cur_transfer;
 	chip = drv_data->cur_chip;
 
···
 {
 	struct driver_data *drv_data = spi_master_get_devdata(master);
 
-	drv_data->cur_msg = msg;
 	/* Initial message state*/
-	drv_data->cur_msg->state = START_STATE;
-	drv_data->cur_transfer = list_entry(drv_data->cur_msg->transfers.next,
+	msg->state = START_STATE;
+	drv_data->cur_transfer = list_entry(msg->transfers.next,
 						struct spi_transfer,
 						transfer_list);
 
 	/* prepare to setup the SSP, in pump_transfers, using the per
 	 * chip configuration */
-	drv_data->cur_chip = spi_get_ctldata(drv_data->cur_msg->spi);
+	drv_data->cur_chip = spi_get_ctldata(msg->spi);
 
 	/* Mark as busy and launch transfers */
 	tasklet_schedule(&drv_data->pump_transfers);

drivers/spi/spi-pxa2xx.h

···
 	atomic_t dma_running;
 
 	/* Current message transfer state info */
-	struct spi_message *cur_msg;
 	struct spi_transfer *cur_transfer;
 	struct chip_data *cur_chip;
 	size_t len;