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Commit c6b044d6 authored by Krzysztof Helt's avatar Krzysztof Helt Committed by Linus Torvalds
Browse files

neofb: drop the xtimings structure 



Remove the xtimings structure which only stored some values to be used
later (mostly once).  Calculate and use these values in places they are
needed.

Signed-off-by: default avatarKrzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 1ca6b62f

drivers/video/neofb.c

+40 −48
Original line number Diff line number Diff line
@@ -259,15 +259,20 @@ static void neoCalcVCLK(const struct fb_info *info, 
 */



static int vgaHWInit(const struct fb_var_screeninfo *var,

		     const struct fb_info *info,

		     struct neofb_par *par, struct xtimings *timings)

		     struct neofb_par *par)

{

	int hsync_end = var->xres + var->right_margin + var->hsync_len;

	int htotal = (hsync_end + var->left_margin) >> 3;

	int vsync_start = var->yres + var->lower_margin;

	int vsync_end = vsync_start + var->vsync_len;

	int vtotal = vsync_end + var->upper_margin;



	par->MiscOutReg = 0x23;



	if (!(timings->sync & FB_SYNC_HOR_HIGH_ACT))

	if (!(var->sync & FB_SYNC_HOR_HIGH_ACT))

		par->MiscOutReg |= 0x40;



	if (!(timings->sync & FB_SYNC_VERT_HIGH_ACT))

	if (!(var->sync & FB_SYNC_VERT_HIGH_ACT))

		par->MiscOutReg |= 0x80;



	/*
@@ -282,25 +287,25 @@ static int vgaHWInit(const struct fb_var_screeninfo *var, 
	/*

	 * CRTC Controller

	 */

	par->CRTC[0] = (timings->HTotal >> 3) - 5;

	par->CRTC[1] = (timings->HDisplay >> 3) - 1;

	par->CRTC[2] = (timings->HDisplay >> 3) - 1;

	par->CRTC[3] = (((timings->HTotal >> 3) - 1) & 0x1F) | 0x80;

	par->CRTC[4] = (timings->HSyncStart >> 3);

	par->CRTC[5] = ((((timings->HTotal >> 3) - 1) & 0x20) << 2)

	    | (((timings->HSyncEnd >> 3)) & 0x1F);

	par->CRTC[6] = (timings->VTotal - 2) & 0xFF;

	par->CRTC[7] = (((timings->VTotal - 2) & 0x100) >> 8)

	    | (((timings->VDisplay - 1) & 0x100) >> 7)

	    | ((timings->VSyncStart & 0x100) >> 6)

	    | (((timings->VDisplay - 1) & 0x100) >> 5)

	    | 0x10 | (((timings->VTotal - 2) & 0x200) >> 4)

	    | (((timings->VDisplay - 1) & 0x200) >> 3)

	    | ((timings->VSyncStart & 0x200) >> 2);

	par->CRTC[0] = htotal - 5;

	par->CRTC[1] = (var->xres >> 3) - 1;

	par->CRTC[2] = (var->xres >> 3) - 1;

	par->CRTC[3] = ((htotal - 1) & 0x1F) | 0x80;

	par->CRTC[4] = ((var->xres + var->right_margin) >> 3);

	par->CRTC[5] = (((htotal - 1) & 0x20) << 2)

	    | (((hsync_end >> 3)) & 0x1F);

	par->CRTC[6] = (vtotal - 2) & 0xFF;

	par->CRTC[7] = (((vtotal - 2) & 0x100) >> 8)

	    | (((var->yres - 1) & 0x100) >> 7)

	    | ((vsync_start & 0x100) >> 6)

	    | (((var->yres - 1) & 0x100) >> 5)

	    | 0x10 | (((vtotal - 2) & 0x200) >> 4)

	    | (((var->yres - 1) & 0x200) >> 3)

	    | ((vsync_start & 0x200) >> 2);

	par->CRTC[8] = 0x00;

	par->CRTC[9] = (((timings->VDisplay - 1) & 0x200) >> 4) | 0x40;

	par->CRTC[9] = (((var->yres - 1) & 0x200) >> 4) | 0x40;



	if (timings->dblscan)

	if (var->vmode & FB_VMODE_DOUBLE)

		par->CRTC[9] |= 0x80;



	par->CRTC[10] = 0x00;
@@ -309,13 +314,13 @@ static int vgaHWInit(const struct fb_var_screeninfo *var, 
	par->CRTC[13] = 0x00;

	par->CRTC[14] = 0x00;

	par->CRTC[15] = 0x00;

	par->CRTC[16] = timings->VSyncStart & 0xFF;

	par->CRTC[17] = (timings->VSyncEnd & 0x0F) | 0x20;

	par->CRTC[18] = (timings->VDisplay - 1) & 0xFF;

	par->CRTC[16] = vsync_start & 0xFF;

	par->CRTC[17] = (vsync_end & 0x0F) | 0x20;

	par->CRTC[18] = (var->yres - 1) & 0xFF;

	par->CRTC[19] = var->xres_virtual >> 4;

	par->CRTC[20] = 0x00;

	par->CRTC[21] = (timings->VDisplay - 1) & 0xFF;

	par->CRTC[22] = (timings->VTotal - 1) & 0xFF;

	par->CRTC[21] = (var->yres - 1) & 0xFF;

	par->CRTC[22] = (vtotal - 1) & 0xFF;

	par->CRTC[23] = 0xC3;

	par->CRTC[24] = 0xFF;
@@ -736,11 +741,11 @@ neofb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) 
static int neofb_set_par(struct fb_info *info)

{

	struct neofb_par *par = info->par;

	struct xtimings timings;

	unsigned char temp;

	int i, clock_hi = 0;

	int lcd_stretch;

	int hoffset, voffset;

	int vsync_start, vtotal;



	DBG("neofb_set_par");
@@ -748,28 +753,15 @@ static int neofb_set_par(struct fb_info *info) 


	vgaHWProtect(1);	/* Blank the screen */



	timings.dblscan = info->var.vmode & FB_VMODE_DOUBLE;

	timings.interlaced = info->var.vmode & FB_VMODE_INTERLACED;

	timings.HDisplay = info->var.xres;

	timings.HSyncStart = timings.HDisplay + info->var.right_margin;

	timings.HSyncEnd = timings.HSyncStart + info->var.hsync_len;

	timings.HTotal = timings.HSyncEnd + info->var.left_margin;

	timings.VDisplay = info->var.yres;

	timings.VSyncStart = timings.VDisplay + info->var.lower_margin;

	timings.VSyncEnd = timings.VSyncStart + info->var.vsync_len;

	timings.VTotal = timings.VSyncEnd + info->var.upper_margin;

	timings.sync = info->var.sync;

	timings.pixclock = PICOS2KHZ(info->var.pixclock);



	if (timings.pixclock < 1)

		timings.pixclock = 1;

	vsync_start = info->var.yres + info->var.lower_margin;

	vtotal = vsync_start + info->var.vsync_len + info->var.upper_margin;



	/*

	 * This will allocate the datastructure and initialize all of the

	 * generic VGA registers.

	 */



	if (vgaHWInit(&info->var, info, par, &timings))

	if (vgaHWInit(&info->var, par))

		return -EINVAL;



	/*
@@ -808,10 +800,10 @@ static int neofb_set_par(struct fb_info *info) 
	par->ExtCRTDispAddr = 0x10;



	/* Vertical Extension */

	par->VerticalExt = (((timings.VTotal - 2) & 0x400) >> 10)

	    | (((timings.VDisplay - 1) & 0x400) >> 9)

	    | (((timings.VSyncStart) & 0x400) >> 8)

	    | (((timings.VSyncStart) & 0x400) >> 7);

	par->VerticalExt = (((vtotal - 2) & 0x400) >> 10)

	    | (((info->var.yres - 1) & 0x400) >> 9)

	    | (((vsync_start) & 0x400) >> 8)

	    | (((vsync_start) & 0x400) >> 7);



	/* Fast write bursts on unless disabled. */

	if (par->pci_burst)
@@ -972,7 +964,7 @@ static int neofb_set_par(struct fb_info *info) 
	 * Calculate the VCLK that most closely matches the requested dot

	 * clock.

	 */

	neoCalcVCLK(info, par, timings.pixclock);

	neoCalcVCLK(info, par, PICOS2KHZ(info->var.pixclock));



	/* Since we program the clocks ourselves, always use VCLK3. */

	par->MiscOutReg |= 0x0C;

include/video/neomagic.h

+0 −17
Original line number Diff line number Diff line
@@ -90,23 +90,6 @@ 
#define PCI_CHIP_NM2360 0x0006

#define PCI_CHIP_NM2380 0x0016





struct xtimings {

	unsigned int pixclock;

	unsigned int HDisplay;

	unsigned int HSyncStart;

	unsigned int HSyncEnd;

	unsigned int HTotal;

	unsigned int VDisplay;

	unsigned int VSyncStart;

	unsigned int VSyncEnd;

	unsigned int VTotal;

	unsigned int sync;

	int dblscan;

	int interlaced;

};





/* --------------------------------------------------------------------- */



typedef volatile struct {