net: Replace all spi->chip_select and spi->cs_gpiod references with function call

Supporting multi-cs in spi drivers would require the chip_select & cs_gpiod
members of struct spi_device to be an array. But changing the type of these
members to array would break the spi driver functionality. To make the
transition smoother introduced four new APIs to get/set the
spi->chip_select & spi->cs_gpiod and replaced all spi->chip_select and
spi->cs_gpiod references with get or set API calls.
While adding multi-cs support in further patches the chip_select & cs_gpiod
members of the spi_device structure would be converted to arrays & the
"idx" parameter of the APIs would be used as array index i.e.,
spi->chip_select[idx] & spi->cs_gpiod[idx] respectively.

Signed-off-by: Amit Kumar Mahapatra <amit.kumar-mahapatra@amd.com>
Reviewed-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/20230310173217.3429788-3-amit.kumar-mahapatra@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>

drivers/net/ethernet/adi/adin1110.c

@@ -515,7 +515,7 @@ static int adin1110_register_mdiobus(struct adin1110_priv *priv,
 		return -ENOMEM;
 
 	snprintf(priv->mii_bus_name, MII_BUS_ID_SIZE, "%s-%u",
-		 priv->cfg->name, priv->spidev->chip_select);
+		 priv->cfg->name, spi_get_chipselect(priv->spidev, 0));
 
 	mii_bus->name = priv->mii_bus_name;
 	mii_bus->read = adin1110_mdio_read;

drivers/net/ethernet/asix/ax88796c_main.c

@@ -1006,7 +1006,7 @@ static int ax88796c_probe(struct spi_device *spi)
 	ax_local->mdiobus->parent = &spi->dev;
 
 	snprintf(ax_local->mdiobus->id, MII_BUS_ID_SIZE,
-		 "ax88796c-%s.%u", dev_name(&spi->dev), spi->chip_select);
+		 "ax88796c-%s.%u", dev_name(&spi->dev), spi_get_chipselect(spi, 0));
 
 	ret = devm_mdiobus_register(&spi->dev, ax_local->mdiobus);
 	if (ret < 0) {

drivers/net/ethernet/davicom/dm9051.c

@@ -1123,7 +1123,7 @@ static int dm9051_mdio_register(struct board_info *db)
 	db->mdiobus->phy_mask = (u32)~BIT(1);
 	db->mdiobus->parent = &spi->dev;
 	snprintf(db->mdiobus->id, MII_BUS_ID_SIZE,
-		 "dm9051-%s.%u", dev_name(&spi->dev), spi->chip_select);
+		 "dm9051-%s.%u", dev_name(&spi->dev), spi_get_chipselect(spi, 0));
 
 	ret = devm_mdiobus_register(&spi->dev, db->mdiobus);
 	if (ret)

drivers/net/ethernet/qualcomm/qca_debug.c

@@ -119,7 +119,7 @@ qcaspi_info_show(struct seq_file *s, void *what)
 	seq_printf(s, "SPI mode         : %x\n",
 		   qca->spi_dev->mode);
 	seq_printf(s, "SPI chip select  : %u\n",
-		   (unsigned int)qca->spi_dev->chip_select);
+		   (unsigned int)spi_get_chipselect(qca->spi_dev, 0));
 	seq_printf(s, "SPI legacy mode  : %u\n",
 		   (unsigned int)qca->legacy_mode);
 	seq_printf(s, "SPI burst length : %u\n",

drivers/net/ieee802154/ca8210.c

@@ -2967,7 +2967,7 @@ static int ca8210_test_interface_init(struct ca8210_priv *priv)
 		sizeof(node_name),
 		"ca8210@%d_%d",
 		priv->spi->master->bus_num,
-		priv->spi->chip_select
+		spi_get_chipselect(priv->spi, 0)
 	);
 
 	test->ca8210_dfs_spi_int = debugfs_create_file(

drivers/net/wan/slic_ds26522.c

@@ -211,7 +211,7 @@ static int slic_ds26522_probe(struct spi_device *spi)
 
 	ret = slic_ds26522_init_configure(spi);
 	if (ret == 0)
-		pr_info("DS26522 cs%d configured\n", spi->chip_select);
+		pr_info("DS26522 cs%d configured\n", spi_get_chipselect(spi, 0));
 
 	return ret;
 }

drivers/net/wireless/marvell/libertas/if_spi.c

@@ -1051,7 +1051,7 @@ static int if_spi_init_card(struct if_spi_card *card)
 				"spi->max_speed_hz=%d\n",
 				card->card_id, card->card_rev,
 				card->spi->master->bus_num,
-				card->spi->chip_select,
+				spi_get_chipselect(card->spi, 0),
 				card->spi->max_speed_hz);
 		err = if_spi_prog_helper_firmware(card, helper);
 		if (err)

drivers/net/wireless/silabs/wfx/bus_spi.c

@@ -208,7 +208,7 @@ static int wfx_spi_probe(struct spi_device *func)
 
 	/* Trace below is also displayed by spi_setup() if compiled with DEBUG */
 	dev_dbg(&func->dev, "SPI params: CS=%d, mode=%d bits/word=%d speed=%d\n",
-		func->chip_select, func->mode, func->bits_per_word, func->max_speed_hz);
+		spi_get_chipselect(func, 0), func->mode, func->bits_per_word, func->max_speed_hz);
 	if (func->bits_per_word != 16 && func->bits_per_word != 8)
 		dev_warn(&func->dev, "unusual bits/word value: %d\n", func->bits_per_word);
 	if (func->max_speed_hz > 50000000)

drivers/net/wireless/st/cw1200/cw1200_spi.c

@@ -378,7 +378,7 @@ static int cw1200_spi_probe(struct spi_device *func)
 	func->mode = SPI_MODE_0;
 
 	pr_info("cw1200_wlan_spi: Probe called (CS %d M %d BPW %d CLK %d)\n",
-		func->chip_select, func->mode, func->bits_per_word,
+		spi_get_chipselect(func, 0), func->mode, func->bits_per_word,
 		func->max_speed_hz);
 
 	if (cw1200_spi_on(plat_data)) {