[PATCH v2 2/2] staging: sm750fb: Remove unused function sm750_enable_dma
From: Mohit Mishra <hidden>
Date: 2026-07-25 09:08:11
Also in:
linux-staging, lkml
Subsystem:
staging - silicon motion sm750 frame buffer driver, staging subsystem, the rest · Maintainers:
Sudip Mukherjee, Teddy Wang, Greg Kroah-Hartman, Linus Torvalds
The function sm750_enable_dma is defined in ddk750_power.c and declared in ddk750_power.h, but it is not called anywhere in the driver. Remove the unused definition and declaration. This addresses the first task in the drivers/staging/sm750fb/TODO list: "- refine the code and remove unused code". Signed-off-by: Mohit Mishra <redacted> --- v2: Remove double blank line flagged by checkpatch -f (Dan Carpenter). drivers/staging/sm750fb/ddk750_power.c | 14 -------------- drivers/staging/sm750fb/ddk750_power.h | 5 ----- 2 files changed, 19 deletions(-)
diff --git a/drivers/staging/sm750fb/ddk750_power.c b/drivers/staging/sm750fb/ddk750_power.c
index 36fde3bcf1b7..59ded1163052 100644
--- a/drivers/staging/sm750fb/ddk750_power.c
+++ b/drivers/staging/sm750fb/ddk750_power.c@@ -89,20 +89,6 @@ void sm750_enable_2d_engine(unsigned int enable) sm750_set_current_gate(gate); } -void sm750_enable_dma(unsigned int enable) -{ - u32 gate; - - /* Enable DMA Gate */ - gate = peek32(CURRENT_GATE); - if (enable) - gate |= CURRENT_GATE_DMA; - else - gate &= ~CURRENT_GATE_DMA; - - sm750_set_current_gate(gate); -} - /* * This function enable/disable the GPIO Engine */
diff --git a/drivers/staging/sm750fb/ddk750_power.h b/drivers/staging/sm750fb/ddk750_power.h
index 1c4f054d7276..0c4ab2120385 100644
--- a/drivers/staging/sm750fb/ddk750_power.h
+++ b/drivers/staging/sm750fb/ddk750_power.h@@ -23,11 +23,6 @@ void sm750_set_current_gate(unsigned int gate); */ void sm750_enable_2d_engine(unsigned int enable); -/* - * This function enable/disable the DMA Engine - */ -void sm750_enable_dma(unsigned int enable); - /* * This function enable/disable the GPIO Engine */
--
2.43.0