--- zzzz-none-000/linux-3.10.107/drivers/spi/spi-xcomm.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/drivers/spi/spi-xcomm.c	2021-02-04 17:41:59.000000000 +0000
@@ -8,7 +8,6 @@
  */
 
 #include <linux/kernel.h>
-#include <linux/init.h>
 #include <linux/module.h>
 #include <linux/delay.h>
 #include <linux/i2c.h>
@@ -74,15 +73,13 @@
 static int spi_xcomm_setup_transfer(struct spi_xcomm *spi_xcomm,
 	struct spi_device *spi, struct spi_transfer *t, unsigned int *settings)
 {
-	unsigned int speed;
-
-	if ((t->bits_per_word && t->bits_per_word != 8) || t->len > 62)
+	if (t->len > 62)
 		return -EINVAL;
 
-	speed = t->speed_hz ? t->speed_hz : spi->max_speed_hz;
+	if (t->speed_hz != spi_xcomm->current_speed) {
+		unsigned int divider;
 
-	if (speed != spi_xcomm->current_speed) {
-		unsigned int divider = DIV_ROUND_UP(SPI_XCOMM_CLOCK, speed);
+		divider = DIV_ROUND_UP(SPI_XCOMM_CLOCK, t->speed_hz);
 		if (divider >= 64)
 			*settings |= SPI_XCOMM_SETTINGS_CLOCK_DIV_64;
 		else if (divider >= 16)
@@ -90,7 +87,7 @@
 		else
 			*settings |= SPI_XCOMM_SETTINGS_CLOCK_DIV_4;
 
-		spi_xcomm->current_speed = speed;
+		spi_xcomm->current_speed = t->speed_hz;
 	}
 
 	if (spi->mode & SPI_CPOL)
@@ -148,8 +145,6 @@
 	int status = 0;
 	bool is_last;
 
-	is_first = true;
-
 	spi_xcomm_chipselect(spi_xcomm, spi, true);
 
 	list_for_each_entry(t, &msg->transfers, transfer_list) {
@@ -209,14 +204,6 @@
 	return status;
 }
 
-static int spi_xcomm_setup(struct spi_device *spi)
-{
-	if (spi->bits_per_word != 8)
-		return -EINVAL;
-
-	return 0;
-}
-
 static int spi_xcomm_probe(struct i2c_client *i2c,
 	const struct i2c_device_id *id)
 {
@@ -233,41 +220,31 @@
 
 	master->num_chipselect = 16;
 	master->mode_bits = SPI_CPHA | SPI_CPOL | SPI_3WIRE;
+	master->bits_per_word_mask = SPI_BPW_MASK(8);
 	master->flags = SPI_MASTER_HALF_DUPLEX;
-	master->setup = spi_xcomm_setup;
 	master->transfer_one_message = spi_xcomm_transfer_one;
 	master->dev.of_node = i2c->dev.of_node;
 	i2c_set_clientdata(i2c, master);
 
-	ret = spi_register_master(master);
+	ret = devm_spi_register_master(&i2c->dev, master);
 	if (ret < 0)
 		spi_master_put(master);
 
 	return ret;
 }
 
-static int spi_xcomm_remove(struct i2c_client *i2c)
-{
-	struct spi_master *master = i2c_get_clientdata(i2c);
-
-	spi_unregister_master(master);
-
-	return 0;
-}
-
 static const struct i2c_device_id spi_xcomm_ids[] = {
 	{ "spi-xcomm" },
 	{ },
 };
+MODULE_DEVICE_TABLE(i2c, spi_xcomm_ids);
 
 static struct i2c_driver spi_xcomm_driver = {
 	.driver = {
 		.name	= "spi-xcomm",
-		.owner	= THIS_MODULE,
 	},
 	.id_table	= spi_xcomm_ids,
 	.probe		= spi_xcomm_probe,
-	.remove		= spi_xcomm_remove,
 };
 module_i2c_driver(spi_xcomm_driver);