spi: pxa2xx: Drop struct pxa2xx_spi_chip

No more users.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20240417110334.2671228-7-andriy.shevchenko@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

drivers/spi/spi-pxa2xx-dma.c

@@ -231,16 +231,11 @@ int pxa2xx_spi_set_dma_burst_and_threshold(struct chip_data *chip,
 					   u8 bits_per_word, u32 *burst_code,
 					   u32 *threshold)
 {
-	struct pxa2xx_spi_chip *chip_info = spi->controller_data;
 	struct driver_data *drv_data = spi_controller_get_devdata(spi->controller);
 	u32 dma_burst_size = drv_data->controller_info->dma_burst_size;
 
-	/*
-	 * If the DMA burst size is given in chip_info we use that,
-	 * otherwise we use the default. Also we use the default FIFO
-	 * thresholds for now.
-	 */
-	*burst_code = chip_info ? chip_info->dma_burst_size : dma_burst_size;
+	/* We use the default the DMA burst size and FIFO thresholds for now */
+	*burst_code = dma_burst_size;
 	*threshold = SSCR1_RxTresh(RX_THRESH_DFLT)
 		   | SSCR1_TxTresh(TX_THRESH_DFLT);
 

drivers/spi/spi-pxa2xx.c

@@ -1154,7 +1154,6 @@ static int pxa2xx_spi_unprepare_transfer(struct spi_controller *controller)
 
 static int setup(struct spi_device *spi)
 {
-	struct pxa2xx_spi_chip *chip_info;
 	struct chip_data *chip;
 	const struct lpss_config *config;
 	struct driver_data *drv_data =
@@ -1218,25 +1217,6 @@ static int setup(struct spi_device *spi)
 		chip->timeout = TIMOUT_DFLT;
 	}
 
-	/*
-	 * Protocol drivers may change the chip settings, so...
-	 * if chip_info exists, use it.
-	 */
-	chip_info = spi->controller_data;
-
-	/* chip_info isn't always needed */
-	if (chip_info) {
-		if (chip_info->timeout)
-			chip->timeout = chip_info->timeout;
-		if (chip_info->tx_threshold)
-			tx_thres = chip_info->tx_threshold;
-		if (chip_info->tx_hi_threshold)
-			tx_hi_thres = chip_info->tx_hi_threshold;
-		if (chip_info->rx_threshold)
-			rx_thres = chip_info->rx_threshold;
-		chip->dma_threshold = 0;
-	}
-
 	chip->cr1 = 0;
 	if (spi_controller_is_target(drv_data->controller)) {
 		chip->cr1 |= SSCR1_SCFR;
@@ -1256,11 +1236,6 @@ static int setup(struct spi_device *spi)
 		chip->lpss_tx_threshold = tx_thres;
 	}
 
-	/*
-	 * Set DMA burst and threshold outside of chip_info path so that if
-	 * chip_info goes away after setting chip->enable_dma, the burst and
-	 * threshold can still respond to changes in bits_per_word.
-	 */
 	if (chip->enable_dma) {
 		/* Set up legal burst and threshold for DMA */
 		if (pxa2xx_spi_set_dma_burst_and_threshold(chip, spi,

drivers/spi/spi-pxa2xx.h

@@ -35,20 +35,6 @@ struct pxa2xx_spi_controller {
 	struct ssp_device ssp;
 };
 
-/*
- * The controller specific data for SPI target devices
- * (resides in spi_board_info.controller_data),
- * copied to spi_device.platform_data ... mostly for
- * DMA tuning.
- */
-struct pxa2xx_spi_chip {
-	u8 tx_threshold;
-	u8 tx_hi_threshold;
-	u8 rx_threshold;
-	u8 dma_burst_size;
-	u32 timeout;
-};
-
 struct spi_controller;
 struct spi_device;
 struct spi_transfer;