[PATCH] staging: sm750fb: remove unused functions

[PATCH] staging: sm750fb: remove unused functions

[deep]

From: Kenet Jovan Sokoli <deep@crimson.net.eu.org>

The functions sm750_enable_i2c() and sm750_hw_cursor_set_data2() are
defined and declared but never used. Following the driver's TODO list
to remove unused code, this patch deletes these dead functions.

Verified by compilation and cppcheck.

Signed-off-by: Kenet Jovan Sokoli <deep@crimson.net.eu.org>
---
 drivers/staging/sm750fb/ddk750_power.c | 17 ----------
 drivers/staging/sm750fb/ddk750_power.h |  5 ---
 drivers/staging/sm750fb/sm750_cursor.c | 43 --------------------------
 drivers/staging/sm750fb/sm750_cursor.h |  2 --
 4 files changed, 67 deletions(-)

diff --git a/drivers/staging/sm750fb/ddk750_power.c b/drivers/staging/sm750fb/ddk750_power.c
index 12834f78eef7..eaba3bc2e01a 100644
--- a/drivers/staging/sm750fb/ddk750_power.c
+++ b/drivers/staging/sm750fb/ddk750_power.c
@@ -126,20 +126,3 @@ void sm750_enable_gpio(unsigned int enable)
 
 	sm750_set_current_gate(gate);
 }
-
-/*
- * This function enable/disable the I2C Engine
- */
-void sm750_enable_i2c(unsigned int enable)
-{
-	u32 gate;
-
-	/* Enable I2C Gate */
-	gate = peek32(CURRENT_GATE);
-	if (enable)
-		gate |= CURRENT_GATE_I2C;
-	else
-		gate &= ~CURRENT_GATE_I2C;
-
-	sm750_set_current_gate(gate);
-}
diff --git a/drivers/staging/sm750fb/ddk750_power.h b/drivers/staging/sm750fb/ddk750_power.h
index 5cbb11986bb8..1c4f054d7276 100644
--- a/drivers/staging/sm750fb/ddk750_power.h
+++ b/drivers/staging/sm750fb/ddk750_power.h
@@ -33,9 +33,4 @@ void sm750_enable_dma(unsigned int enable);
  */
 void sm750_enable_gpio(unsigned int enable);
 
-/*
- * This function enable/disable the I2C Engine
- */
-void sm750_enable_i2c(unsigned int enable);
-
 #endif
diff --git a/drivers/staging/sm750fb/sm750_cursor.c b/drivers/staging/sm750fb/sm750_cursor.c
index 7ede144905c9..f0338e6e76b1 100644
--- a/drivers/staging/sm750fb/sm750_cursor.c
+++ b/drivers/staging/sm750fb/sm750_cursor.c
@@ -130,46 +130,3 @@ void sm750_hw_cursor_set_data(struct lynx_cursor *cursor, u16 rop,
 		}
 	}
 }
-
-void sm750_hw_cursor_set_data2(struct lynx_cursor *cursor, u16 rop,
-			       const u8 *pcol, const u8 *pmsk)
-{
-	int i, j, count, pitch, offset;
-	u8 color, mask;
-	u16 data;
-	void __iomem *pbuffer, *pstart;
-
-	/*  in byte*/
-	pitch = cursor->w >> 3;
-
-	/* in byte	*/
-	count = pitch * cursor->h;
-
-	/* in byte */
-	offset = cursor->max_w * 2 / 8;
-
-	data = 0;
-	pstart = cursor->vstart;
-	pbuffer = pstart;
-
-	for (i = 0; i < count; i++) {
-		color = *pcol++;
-		mask = *pmsk++;
-		data = 0;
-
-		for (j = 0; j < 8; j++) {
-			if (mask & (1 << j))
-				data |= ((color & (1 << j)) ? 1 : 2) << (j * 2);
-		}
-		iowrite16(data, pbuffer);
-
-		/* assume pitch is 1,2,4,8,...*/
-		if (!(i & (pitch - 1))) {
-			/* need a return */
-			pstart += offset;
-			pbuffer = pstart;
-		} else {
-			pbuffer += sizeof(u16);
-		}
-	}
-}
diff --git a/drivers/staging/sm750fb/sm750_cursor.h b/drivers/staging/sm750fb/sm750_cursor.h
index 88fa02f6377a..51ba0da0270c 100644
--- a/drivers/staging/sm750fb/sm750_cursor.h
+++ b/drivers/staging/sm750fb/sm750_cursor.h
@@ -10,6 +10,4 @@ void sm750_hw_cursor_set_pos(struct lynx_cursor *cursor, int x, int y);
 void sm750_hw_cursor_set_color(struct lynx_cursor *cursor, u32 fg, u32 bg);
 void sm750_hw_cursor_set_data(struct lynx_cursor *cursor, u16 rop,
 			      const u8 *data, const u8 *mask);
-void sm750_hw_cursor_set_data2(struct lynx_cursor *cursor, u16 rop,
-			       const u8 *data, const u8 *mask);
 #endif
-- 
2.43.0