[PATCH] spi: dw: Make dw_spi_update_config()

[Jisheng Zhang <jszhang@kernel.org>]

After commit da0a672268b3 ("spi: dw: Remove not-going-to-be-supported
code for Baikal SoC"), no users of dw_spi_update_config() any more.
Unexport it and make it static. We can also move two structure
definitions to spi-dw-core.c at the same time.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
---
 drivers/spi/spi-dw-core.c | 21 ++++++++++++++++++---
 drivers/spi/spi-dw.h      | 18 ------------------
 2 files changed, 18 insertions(+), 21 deletions(-)

diff --git a/drivers/spi/spi-dw-core.c b/drivers/spi/spi-dw-core.c
index 1f0e93800908..2d671e31413e 100644
--- a/drivers/spi/spi-dw-core.c
+++ b/drivers/spi/spi-dw-core.c
@@ -32,6 +32,22 @@ struct dw_spi_chip_data {
 	u32 rx_sample_dly;	/* RX sample delay */
 };
 
+/* Slave spi_transfer/spi_mem_op related */
+struct dw_spi_cfg {
+	u8 tmode;
+	u8 dfs;
+	u32 ndf;
+	u32 freq;
+	u8 spi_frf;
+};
+
+struct dw_spi_enh_cfg {
+	u8 wait_c;
+	u8 inst_l;
+	u8 addr_l;
+	u8 trans_t;
+};
+
 #ifdef CONFIG_DEBUG_FS
 
 #define DW_SPI_DBGFS_REG(_name, _off)	\
@@ -342,8 +358,8 @@ static u32 dw_spi_prepare_cr0(struct dw_spi *dws, struct spi_device *spi)
 	return cr0;
 }
 
-void dw_spi_update_config(struct dw_spi *dws, struct spi_device *spi,
-			  struct dw_spi_cfg *cfg, struct dw_spi_enh_cfg *enh_cfg)
+static void dw_spi_update_config(struct dw_spi *dws, struct spi_device *spi,
+				 struct dw_spi_cfg *cfg, struct dw_spi_enh_cfg *enh_cfg)
 {
 	struct dw_spi_chip_data *chip = spi_get_ctldata(spi);
 	u32 cr0 = chip->cr0;
@@ -406,7 +422,6 @@ void dw_spi_update_config(struct dw_spi *dws, struct spi_device *spi,
 		dw_writel(dws, DW_SPI_SPI_CTRLR0, cr0);
 	}
 }
-EXPORT_SYMBOL_NS_GPL(dw_spi_update_config, "SPI_DW_CORE");
 
 static void dw_spi_irq_setup(struct dw_spi *dws)
 {
diff --git a/drivers/spi/spi-dw.h b/drivers/spi/spi-dw.h
index bfdf371bcacb..c16225c5c887 100644
--- a/drivers/spi/spi-dw.h
+++ b/drivers/spi/spi-dw.h
@@ -158,22 +158,6 @@
 #define DW_SPI_GET_BYTE(_val, _idx) \
 	((_val) >> (BITS_PER_BYTE * (_idx)) & 0xff)
 
-/* Slave spi_transfer/spi_mem_op related */
-struct dw_spi_cfg {
-	u8 tmode;
-	u8 dfs;
-	u32 ndf;
-	u32 freq;
-	u8 spi_frf;
-};
-
-struct dw_spi_enh_cfg {
-	u8 wait_c;
-	u8 inst_l;
-	u8 addr_l;
-	u8 trans_t;
-};
-
 struct dw_spi;
 struct dw_spi_dma_ops {
 	int (*dma_init)(struct device *dev, struct dw_spi *dws);
@@ -345,8 +329,6 @@ static inline void dw_spi_shutdown_chip(struct dw_spi *dws)
 }
 
 extern void dw_spi_set_cs(struct spi_device *spi, bool enable);
-extern void dw_spi_update_config(struct dw_spi *dws, struct spi_device *spi,
-				 struct dw_spi_cfg *cfg, struct dw_spi_enh_cfg *enh_cfg);
 extern int dw_spi_check_status(struct dw_spi *dws, bool raw);
 extern int dw_spi_add_controller(struct device *dev, struct dw_spi *dws);
 extern void dw_spi_remove_controller(struct dw_spi *dws);
-- 
2.53.0