spi: rename SPI_CS_CNT_MAX => SPI_DEVICE_CS_CNT_MAX

Rename SPI_CS_CNT_MAX to SPI_DEVICE_CS_CNT_MAX to make it more obvious
that this is the max number of CS per device supported, not per
controller.

Signed-off-by: Jonas Gorski <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Mark Brown <[email protected]>

Author: KanjiMonster

drivers/spi/spi-cadence-quadspi.c

@@ -33,7 +33,7 @@
 #define CQSPI_NAME			"cadence-qspi"
 #define CQSPI_MAX_CHIPSELECT		4
 
-static_assert(CQSPI_MAX_CHIPSELECT <= SPI_CS_CNT_MAX);
+static_assert(CQSPI_MAX_CHIPSELECT <= SPI_DEVICE_CS_CNT_MAX);
 
 /* Quirks */
 #define CQSPI_NEEDS_WR_DELAY		BIT(0)

drivers/spi/spi.c

@@ -670,9 +670,9 @@ static int __spi_add_device(struct spi_device *spi)
 	int status, idx;
 	u8 cs;
 
-	if (spi->num_chipselect > SPI_CS_CNT_MAX) {
+	if (spi->num_chipselect > SPI_DEVICE_CS_CNT_MAX) {
 		dev_err(dev, "num_cs %d > max %d\n", spi->num_chipselect,
-			SPI_CS_CNT_MAX);
+			SPI_DEVICE_CS_CNT_MAX);
 		return -EOVERFLOW;
 	}
 
@@ -699,7 +699,7 @@ static int __spi_add_device(struct spi_device *spi)
 	}
 
 	/* Initialize unused logical CS as invalid */
-	for (idx = spi->num_chipselect; idx < SPI_CS_CNT_MAX; idx++)
+	for (idx = spi->num_chipselect; idx < SPI_DEVICE_CS_CNT_MAX; idx++)
 		spi_set_chipselect(spi, idx, SPI_INVALID_CS);
 
 	/* Set the bus ID string */
@@ -1076,7 +1076,7 @@ static void spi_set_cs(struct spi_device *spi, bool enable, bool force)
 	trace_spi_set_cs(spi, activate);
 
 	spi->controller->last_cs_index_mask = spi->cs_index_mask;
-	for (idx = 0; idx < SPI_CS_CNT_MAX; idx++) {
+	for (idx = 0; idx < SPI_DEVICE_CS_CNT_MAX; idx++) {
 		if (enable && idx < spi->num_chipselect)
 			spi->controller->last_cs[idx] = spi_get_chipselect(spi, 0);
 		else
@@ -2354,7 +2354,7 @@ static void of_spi_parse_dt_cs_delay(struct device_node *nc,
 static int of_spi_parse_dt(struct spi_controller *ctlr, struct spi_device *spi,
 			   struct device_node *nc)
 {
-	u32 value, cs[SPI_CS_CNT_MAX];
+	u32 value, cs[SPI_DEVICE_CS_CNT_MAX];
 	int rc, idx;
 
 	/* Mode (clock phase/polarity/etc.) */
@@ -2429,7 +2429,7 @@ static int of_spi_parse_dt(struct spi_controller *ctlr, struct spi_device *spi,
 
 	/* Device address */
 	rc = of_property_read_variable_u32_array(nc, "reg", &cs[0], 1,
-						 SPI_CS_CNT_MAX);
+						 SPI_DEVICE_CS_CNT_MAX);
 	if (rc < 0) {
 		dev_err(&ctlr->dev, "%pOF has no valid 'reg' property (%d)\n",
 			nc, rc);
@@ -3313,7 +3313,7 @@ int spi_register_controller(struct spi_controller *ctlr)
 	}
 
 	/* Setting last_cs to SPI_INVALID_CS means no chip selected */
-	for (idx = 0; idx < SPI_CS_CNT_MAX; idx++)
+	for (idx = 0; idx < SPI_DEVICE_CS_CNT_MAX; idx++)
 		ctlr->last_cs[idx] = SPI_INVALID_CS;
 
 	status = device_add(&ctlr->dev);

include/linux/spi/spi.h

@@ -21,7 +21,7 @@
 #include <uapi/linux/spi/spi.h>
 
 /* Max no. of CS supported per spi device */
-#define SPI_CS_CNT_MAX 4
+#define SPI_DEVICE_CS_CNT_MAX 4
 
 struct dma_chan;
 struct software_node;
@@ -229,7 +229,7 @@ struct spi_device {
 	struct spi_delay	cs_hold;
 	struct spi_delay	cs_inactive;
 
-	u8			chip_select[SPI_CS_CNT_MAX];
+	u8			chip_select[SPI_DEVICE_CS_CNT_MAX];
 	u8			num_chipselect;
 
 	/*
@@ -238,9 +238,9 @@ struct spi_device {
 	 * multiple chip selects & memories are connected in parallel
 	 * then more than one bit need to be set in cs_index_mask.
 	 */
-	u32			cs_index_mask : SPI_CS_CNT_MAX;
+	u32			cs_index_mask : SPI_DEVICE_CS_CNT_MAX;
 
-	struct gpio_desc	*cs_gpiod[SPI_CS_CNT_MAX];	/* Chip select gpio desc */
+	struct gpio_desc	*cs_gpiod[SPI_DEVICE_CS_CNT_MAX];	/* Chip select gpio desc */
 
 	/*
 	 * Likely need more hooks for more protocol options affecting how
@@ -721,8 +721,8 @@ struct spi_controller {
 	bool				auto_runtime_pm;
 	bool                            fallback;
 	bool				last_cs_mode_high;
-	s8				last_cs[SPI_CS_CNT_MAX];
-	u32				last_cs_index_mask : SPI_CS_CNT_MAX;
+	s8				last_cs[SPI_DEVICE_CS_CNT_MAX];
+	u32				last_cs_index_mask : SPI_DEVICE_CS_CNT_MAX;
 	struct completion               xfer_completion;
 	size_t				max_dma_len;