[PATCH v1 2/2] staging: sm750fb: remove unused functions

[PATCH v1 2/2] staging: sm750fb: remove unused functions

[Chhabilal Dangal]

sm750_hw_cursor_set_data2() in sm750_cursor.c is defined and declared
but never called anywhere in the driver.

sm750_enable_i2c() in ddk750_power.c is similarly defined and declared
but has no callers. The software I2C implementation (ddk750_swi2c.c)
uses GPIO directly rather than the I2C gate.

Remove both dead functions and their declarations per the TODO item
to refine the code and remove unused code.

Tested by building the full kernel and module with CONFIG_FB_SM750=m
on x86_64:
  make -j$(nproc)
  make M=drivers/staging/sm750fb modules
Signed-off-by: Chhabilal Dangal <yogeshdangal66@gmail.com>
---
 drivers/staging/sm750fb/ddk750_power.c | 16 ----------------
 drivers/staging/sm750fb/ddk750_power.h |  5 -----
 drivers/staging/sm750fb/sm750_cursor.h |  2 --
 3 files changed, 23 deletions(-)

diff --git a/drivers/staging/sm750fb/ddk750_power.c b/drivers/staging/sm750fb/ddk750_power.c
index 12834f78eef7..1f7e0ec1d02b 100644
--- a/drivers/staging/sm750fb/ddk750_power.c
+++ b/drivers/staging/sm750fb/ddk750_power.c
@@ -127,19 +127,3 @@ 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.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
-- 
2.54.0