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staging: sm750fb: remove unused set_all_eng_off field

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The set_all_eng_off field is only initialized to 0 and is never set by
any caller.

Remove the unused field together with the dead cleanup path guarded by
it.

No functional change intended.

Signed-off-by: Hungyu Lin <dennylin0707@gmail.com>
Link: https://patch.msgid.link/20260716044613.2659-1-dennylin0707@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Hungyu Lin
2026-07-17 14:19:40 +02:00
committed by Greg Kroah-Hartman
parent f75fcd03fe
commit ebe59e66b7
3 changed files with 0 additions and 35 deletions
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drivers/staging/sm750fb/ddk750_chip.c
-27
View File
@@ -263,33 +263,6 @@ int ddk750_init_hw(struct initchip_param *p_init_param)
poke32(MISC_CTRL, reg);
}
if (p_init_param->set_all_eng_off == 1) {
sm750_enable_2d_engine(0);
/* Disable Overlay, if a former application left it on */
reg = peek32(VIDEO_DISPLAY_CTRL);
reg &= ~DISPLAY_CTRL_PLANE;
poke32(VIDEO_DISPLAY_CTRL, reg);
/* Disable video alpha, if a former application left it on */
reg = peek32(VIDEO_ALPHA_DISPLAY_CTRL);
reg &= ~DISPLAY_CTRL_PLANE;
poke32(VIDEO_ALPHA_DISPLAY_CTRL, reg);
/* Disable alpha plane, if a former application left it on */
reg = peek32(ALPHA_DISPLAY_CTRL);
reg &= ~DISPLAY_CTRL_PLANE;
poke32(ALPHA_DISPLAY_CTRL, reg);
/* Disable DMA Channel, if a former application left it on */
reg = peek32(DMA_ABORT_INTERRUPT);
reg |= DMA_ABORT_INTERRUPT_ABORT_1;
poke32(DMA_ABORT_INTERRUPT, reg);
/* Disable DMA Power, if a former application left it on */
sm750_enable_dma(0);
}
/* We can add more initialization as needed. */
return 0;
drivers/staging/sm750fb/ddk750_chip.h
-7
View File
@@ -76,13 +76,6 @@ struct initchip_param {
*/
unsigned short master_clock;
/*
* 0 = leave all engine state untouched.
* 1 = make sure they are off: 2D, Overlay,
* video alpha, alpha, hardware cursors
*/
unsigned short set_all_eng_off;
/*
* 0 = Do not reset the memory controller
* 1 = Reset the memory controller
drivers/staging/sm750fb/sm750.c
-1
View File
@@ -837,7 +837,6 @@ static void sm750fb_setup(struct sm750_dev *sm750_dev, char *src)
sm750_dev->init_parm.mem_clock = 0;
sm750_dev->init_parm.master_clock = 0;
sm750_dev->init_parm.power_mode = 0;
sm750_dev->init_parm.set_all_eng_off = 0;
sm750_dev->init_parm.reset_memory = 1;
/* defaultly turn g_hwcursor on for both view */