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-rw-r--r--drivers/video/fbdev/atmel_lcdfb.c2
-rw-r--r--drivers/video/fbdev/au1100fb.c39
-rw-r--r--drivers/video/fbdev/au1100fb.h1
-rw-r--r--drivers/video/fbdev/au1200fb.c81
-rw-r--r--drivers/video/fbdev/bfin_adv7393fb.c2
-rw-r--r--drivers/video/fbdev/efifb.c39
-rw-r--r--drivers/video/fbdev/omap2/dss/omapdss-boot-init.c8
-rw-r--r--drivers/video/fbdev/vt8500lcdfb.c2
8 files changed, 71 insertions, 103 deletions
diff --git a/drivers/video/fbdev/atmel_lcdfb.c b/drivers/video/fbdev/atmel_lcdfb.c
index e683b6ef9594..d36e830d6fc6 100644
--- a/drivers/video/fbdev/atmel_lcdfb.c
+++ b/drivers/video/fbdev/atmel_lcdfb.c
@@ -1057,6 +1057,7 @@ static int atmel_lcdfb_of_init(struct atmel_lcdfb_info *sinfo)
goto put_display_node;
}
+ INIT_LIST_HEAD(&pdata->pwr_gpios);
ret = -ENOMEM;
for (i = 0; i < of_gpio_named_count(display_np, "atmel,power-control-gpio"); i++) {
gpio = of_get_named_gpio_flags(display_np, "atmel,power-control-gpio",
@@ -1082,6 +1083,7 @@ static int atmel_lcdfb_of_init(struct atmel_lcdfb_info *sinfo)
dev_err(dev, "set direction output gpio %d failed\n", gpio);
goto put_display_node;
}
+ list_add(&og->list, &pdata->pwr_gpios);
}
if (is_gpio_power)
diff --git a/drivers/video/fbdev/au1100fb.c b/drivers/video/fbdev/au1100fb.c
index 372d4aea9d1c..0676746ec68c 100644
--- a/drivers/video/fbdev/au1100fb.c
+++ b/drivers/video/fbdev/au1100fb.c
@@ -41,6 +41,7 @@
* with this program; if not, write to the Free Software Foundation, Inc.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*/
+#include <linux/clk.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
@@ -113,7 +114,7 @@ static int au1100fb_fb_blank(int blank_mode, struct fb_info *fbi)
case VESA_NO_BLANKING:
/* Turn on panel */
fbdev->regs->lcd_control |= LCD_CONTROL_GO;
- au_sync();
+ wmb(); /* drain writebuffer */
break;
case VESA_VSYNC_SUSPEND:
@@ -121,7 +122,7 @@ static int au1100fb_fb_blank(int blank_mode, struct fb_info *fbi)
case VESA_POWERDOWN:
/* Turn off panel */
fbdev->regs->lcd_control &= ~LCD_CONTROL_GO;
- au_sync();
+ wmb(); /* drain writebuffer */
break;
default:
break;
@@ -434,7 +435,7 @@ static int au1100fb_drv_probe(struct platform_device *dev)
struct au1100fb_device *fbdev = NULL;
struct resource *regs_res;
unsigned long page;
- u32 sys_clksrc;
+ struct clk *c;
/* Allocate new device private */
fbdev = devm_kzalloc(&dev->dev, sizeof(struct au1100fb_device),
@@ -473,6 +474,13 @@ static int au1100fb_drv_probe(struct platform_device *dev)
print_dbg("Register memory map at %p", fbdev->regs);
print_dbg("phys=0x%08x, size=%d", fbdev->regs_phys, fbdev->regs_len);
+ c = clk_get(NULL, "lcd_intclk");
+ if (!IS_ERR(c)) {
+ fbdev->lcdclk = c;
+ clk_set_rate(c, 48000000);
+ clk_prepare_enable(c);
+ }
+
/* Allocate the framebuffer to the maximum screen size * nbr of video buffers */
fbdev->fb_len = fbdev->panel->xres * fbdev->panel->yres *
(fbdev->panel->bpp >> 3) * AU1100FB_NBR_VIDEO_BUFFERS;
@@ -506,10 +514,6 @@ static int au1100fb_drv_probe(struct platform_device *dev)
print_dbg("Framebuffer memory map at %p", fbdev->fb_mem);
print_dbg("phys=0x%08x, size=%dK", fbdev->fb_phys, fbdev->fb_len / 1024);
- /* Setup LCD clock to AUX (48 MHz) */
- sys_clksrc = au_readl(SYS_CLKSRC) & ~(SYS_CS_ML_MASK | SYS_CS_DL | SYS_CS_CL);
- au_writel((sys_clksrc | (1 << SYS_CS_ML_BIT)), SYS_CLKSRC);
-
/* load the panel info into the var struct */
au1100fb_var.bits_per_pixel = fbdev->panel->bpp;
au1100fb_var.xres = fbdev->panel->xres;
@@ -546,6 +550,10 @@ static int au1100fb_drv_probe(struct platform_device *dev)
return 0;
failed:
+ if (fbdev->lcdclk) {
+ clk_disable_unprepare(fbdev->lcdclk);
+ clk_put(fbdev->lcdclk);
+ }
if (fbdev->fb_mem) {
dma_free_noncoherent(&dev->dev, fbdev->fb_len, fbdev->fb_mem,
fbdev->fb_phys);
@@ -576,11 +584,15 @@ int au1100fb_drv_remove(struct platform_device *dev)
fb_dealloc_cmap(&fbdev->info.cmap);
+ if (fbdev->lcdclk) {
+ clk_disable_unprepare(fbdev->lcdclk);
+ clk_put(fbdev->lcdclk);
+ }
+
return 0;
}
#ifdef CONFIG_PM
-static u32 sys_clksrc;
static struct au1100fb_regs fbregs;
int au1100fb_drv_suspend(struct platform_device *dev, pm_message_t state)
@@ -590,14 +602,11 @@ int au1100fb_drv_suspend(struct platform_device *dev, pm_message_t state)
if (!fbdev)
return 0;
- /* Save the clock source state */
- sys_clksrc = au_readl(SYS_CLKSRC);
-
/* Blank the LCD */
au1100fb_fb_blank(VESA_POWERDOWN, &fbdev->info);
- /* Stop LCD clocking */
- au_writel(sys_clksrc & ~SYS_CS_ML_MASK, SYS_CLKSRC);
+ if (fbdev->lcdclk)
+ clk_disable(fbdev->lcdclk);
memcpy(&fbregs, fbdev->regs, sizeof(struct au1100fb_regs));
@@ -613,8 +622,8 @@ int au1100fb_drv_resume(struct platform_device *dev)
memcpy(fbdev->regs, &fbregs, sizeof(struct au1100fb_regs));
- /* Restart LCD clocking */
- au_writel(sys_clksrc, SYS_CLKSRC);
+ if (fbdev->lcdclk)
+ clk_enable(fbdev->lcdclk);
/* Unblank the LCD */
au1100fb_fb_blank(VESA_NO_BLANKING, &fbdev->info);
diff --git a/drivers/video/fbdev/au1100fb.h b/drivers/video/fbdev/au1100fb.h
index 12d9642d5465..9af19939a9c6 100644
--- a/drivers/video/fbdev/au1100fb.h
+++ b/drivers/video/fbdev/au1100fb.h
@@ -109,6 +109,7 @@ struct au1100fb_device {
size_t fb_len;
dma_addr_t fb_phys;
int panel_idx;
+ struct clk *lcdclk;
};
/********************************************************************/
diff --git a/drivers/video/fbdev/au1200fb.c b/drivers/video/fbdev/au1200fb.c
index 4cfba78a1458..40494dbdf519 100644
--- a/drivers/video/fbdev/au1200fb.c
+++ b/drivers/video/fbdev/au1200fb.c
@@ -30,6 +30,7 @@
* 675 Mass Ave, Cambridge, MA 02139, USA.
*/
+#include <linux/clk.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/kernel.h>
@@ -330,9 +331,8 @@ struct panel_settings
uint32 mode_pwmhi;
uint32 mode_outmask;
uint32 mode_fifoctrl;
- uint32 mode_toyclksrc;
uint32 mode_backlight;
- uint32 mode_auxpll;
+ uint32 lcdclk;
#define Xres min_xres
#define Yres min_yres
u32 min_xres; /* Minimum horizontal resolution */
@@ -379,9 +379,8 @@ static struct panel_settings known_lcd_panels[] =
.mode_pwmhi = 0x00000000,
.mode_outmask = 0x00FFFFFF,
.mode_fifoctrl = 0x2f2f2f2f,
- .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
.mode_backlight = 0x00000000,
- .mode_auxpll = 8, /* 96MHz AUXPLL */
+ .lcdclk = 96,
320, 320,
240, 240,
},
@@ -407,9 +406,8 @@ static struct panel_settings known_lcd_panels[] =
.mode_pwmhi = 0x00000000,
.mode_outmask = 0x00FFFFFF,
.mode_fifoctrl = 0x2f2f2f2f,
- .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
.mode_backlight = 0x00000000,
- .mode_auxpll = 8, /* 96MHz AUXPLL */
+ .lcdclk = 96,
640, 480,
640, 480,
},
@@ -435,9 +433,8 @@ static struct panel_settings known_lcd_panels[] =
.mode_pwmhi = 0x00000000,
.mode_outmask = 0x00FFFFFF,
.mode_fifoctrl = 0x2f2f2f2f,
- .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
.mode_backlight = 0x00000000,
- .mode_auxpll = 8, /* 96MHz AUXPLL */
+ .lcdclk = 96,
800, 800,
600, 600,
},
@@ -463,9 +460,8 @@ static struct panel_settings known_lcd_panels[] =
.mode_pwmhi = 0x00000000,
.mode_outmask = 0x00FFFFFF,
.mode_fifoctrl = 0x2f2f2f2f,
- .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
.mode_backlight = 0x00000000,
- .mode_auxpll = 6, /* 72MHz AUXPLL */
+ .lcdclk = 72,
1024, 1024,
768, 768,
},
@@ -491,9 +487,8 @@ static struct panel_settings known_lcd_panels[] =
.mode_pwmhi = 0x00000000,
.mode_outmask = 0x00FFFFFF,
.mode_fifoctrl = 0x2f2f2f2f,
- .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
.mode_backlight = 0x00000000,
- .mode_auxpll = 10, /* 120MHz AUXPLL */
+ .lcdclk = 120,
1280, 1280,
1024, 1024,
},
@@ -519,9 +514,8 @@ static struct panel_settings known_lcd_panels[] =
.mode_pwmhi = 0x03400000, /* SCB 0x0 */
.mode_outmask = 0x00FFFFFF,
.mode_fifoctrl = 0x2f2f2f2f,
- .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
.mode_backlight = 0x00000000,
- .mode_auxpll = 8, /* 96MHz AUXPLL */
+ .lcdclk = 96,
1024, 1024,
768, 768,
},
@@ -550,9 +544,8 @@ static struct panel_settings known_lcd_panels[] =
.mode_pwmhi = 0x03400000,
.mode_outmask = 0x00fcfcfc,
.mode_fifoctrl = 0x2f2f2f2f,
- .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
.mode_backlight = 0x00000000,
- .mode_auxpll = 8, /* 96MHz AUXPLL */
+ .lcdclk = 96,
640, 480,
640, 480,
},
@@ -581,9 +574,8 @@ static struct panel_settings known_lcd_panels[] =
.mode_pwmhi = 0x03400000,
.mode_outmask = 0x00fcfcfc,
.mode_fifoctrl = 0x2f2f2f2f,
- .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
.mode_backlight = 0x00000000,
- .mode_auxpll = 8, /* 96MHz AUXPLL */
+ .lcdclk = 96, /* 96MHz AUXPLL */
320, 320,
240, 240,
},
@@ -612,9 +604,8 @@ static struct panel_settings known_lcd_panels[] =
.mode_pwmhi = 0x03400000,
.mode_outmask = 0x00fcfcfc,
.mode_fifoctrl = 0x2f2f2f2f,
- .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
.mode_backlight = 0x00000000,
- .mode_auxpll = 8, /* 96MHz AUXPLL */
+ .lcdclk = 96,
856, 856,
480, 480,
},
@@ -646,9 +637,8 @@ static struct panel_settings known_lcd_panels[] =
.mode_pwmhi = 0x00000000,
.mode_outmask = 0x00FFFFFF,
.mode_fifoctrl = 0x2f2f2f2f,
- .mode_toyclksrc = 0x00000004, /* AUXPLL directly */
.mode_backlight = 0x00000000,
- .mode_auxpll = (48/12) * 2,
+ .lcdclk = 96,
800, 800,
480, 480,
},
@@ -764,7 +754,7 @@ static int au1200_setlocation (struct au1200fb_device *fbdev, int plane,
/* Disable the window while making changes, then restore WINEN */
winenable = lcd->winenable & (1 << plane);
- au_sync();
+ wmb(); /* drain writebuffer */
lcd->winenable &= ~(1 << plane);
lcd->window[plane].winctrl0 = winctrl0;
lcd->window[plane].winctrl1 = winctrl1;
@@ -772,7 +762,7 @@ static int au1200_setlocation (struct au1200fb_device *fbdev, int plane,
lcd->window[plane].winbuf1 = fbdev->fb_phys;
lcd->window[plane].winbufctrl = 0; /* select winbuf0 */
lcd->winenable |= winenable;
- au_sync();
+ wmb(); /* drain writebuffer */
return 0;
}
@@ -788,22 +778,21 @@ static void au1200_setpanel(struct panel_settings *newpanel,
/* Make sure all windows disabled */
winenable = lcd->winenable;
lcd->winenable = 0;
- au_sync();
+ wmb(); /* drain writebuffer */
/*
* Ensure everything is disabled before reconfiguring
*/
if (lcd->screen & LCD_SCREEN_SEN) {
/* Wait for vertical sync period */
lcd->intstatus = LCD_INT_SS;
- while ((lcd->intstatus & LCD_INT_SS) == 0) {
- au_sync();
- }
+ while ((lcd->intstatus & LCD_INT_SS) == 0)
+ ;
lcd->screen &= ~LCD_SCREEN_SEN; /*disable the controller*/
do {
lcd->intstatus = lcd->intstatus; /*clear interrupts*/
- au_sync();
+ wmb(); /* drain writebuffer */
/*wait for controller to shut down*/
} while ((lcd->intstatus & LCD_INT_SD) == 0);
@@ -829,11 +818,17 @@ static void au1200_setpanel(struct panel_settings *newpanel,
*/
if (!(panel->mode_clkcontrol & LCD_CLKCONTROL_EXT))
{
- uint32 sys_clksrc;
- au_writel(panel->mode_auxpll, SYS_AUXPLL);
- sys_clksrc = au_readl(SYS_CLKSRC) & ~0x0000001f;
- sys_clksrc |= panel->mode_toyclksrc;
- au_writel(sys_clksrc, SYS_CLKSRC);
+ struct clk *c = clk_get(NULL, "lcd_intclk");
+ long r, pc = panel->lcdclk * 1000000;
+
+ if (!IS_ERR(c)) {
+ r = clk_round_rate(c, pc);
+ if ((pc - r) < (pc / 10)) { /* 10% slack */
+ clk_set_rate(c, r);
+ clk_prepare_enable(c);
+ }
+ clk_put(c);
+ }
}
/*
@@ -847,7 +842,7 @@ static void au1200_setpanel(struct panel_settings *newpanel,
lcd->pwmhi = panel->mode_pwmhi;
lcd->outmask = panel->mode_outmask;
lcd->fifoctrl = panel->mode_fifoctrl;
- au_sync();
+ wmb(); /* drain writebuffer */
/* fixme: Check window settings to make sure still valid
* for new geometry */
@@ -863,7 +858,7 @@ static void au1200_setpanel(struct panel_settings *newpanel,
* Re-enable screen now that it is configured
*/
lcd->screen |= LCD_SCREEN_SEN;
- au_sync();
+ wmb(); /* drain writebuffer */
/* Call init of panel */
if (pd->panel_init)
@@ -956,7 +951,7 @@ static void au1200_setmode(struct au1200fb_device *fbdev)
| LCD_WINCTRL2_SCY_1
) ;
lcd->winenable |= win->w[plane].mode_winenable;
- au_sync();
+ wmb(); /* drain writebuffer */
}
@@ -1270,7 +1265,7 @@ static void set_global(u_int cmd, struct au1200_lcd_global_regs_t *pdata)
if (pdata->flags & SCREEN_MASK)
lcd->colorkeymsk = pdata->mask;
- au_sync();
+ wmb(); /* drain writebuffer */
}
static void get_global(u_int cmd, struct au1200_lcd_global_regs_t *pdata)
@@ -1288,7 +1283,7 @@ static void get_global(u_int cmd, struct au1200_lcd_global_regs_t *pdata)
hi1 = (lcd->pwmhi >> 16) + 1;
divider = (lcd->pwmdiv & 0x3FFFF) + 1;
pdata->brightness = ((hi1 << 8) / divider) - 1;
- au_sync();
+ wmb(); /* drain writebuffer */
}
static void set_window(unsigned int plane,
@@ -1387,7 +1382,7 @@ static void set_window(unsigned int plane,
val |= (pdata->enable & 1) << plane;
lcd->winenable = val;
}
- au_sync();
+ wmb(); /* drain writebuffer */
}
static void get_window(unsigned int plane,
@@ -1414,7 +1409,7 @@ static void get_window(unsigned int plane,
pdata->ram_array_mode = (lcd->window[plane].winctrl2 & LCD_WINCTRL2_RAM) >> 21;
pdata->enable = (lcd->winenable >> plane) & 1;
- au_sync();
+ wmb(); /* drain writebuffer */
}
static int au1200fb_ioctl(struct fb_info *info, unsigned int cmd,
@@ -1511,7 +1506,7 @@ static irqreturn_t au1200fb_handle_irq(int irq, void* dev_id)
{
/* Nothing to do for now, just clear any pending interrupt */
lcd->intstatus = lcd->intstatus;
- au_sync();
+ wmb(); /* drain writebuffer */
return IRQ_HANDLED;
}
@@ -1809,7 +1804,7 @@ static int au1200fb_drv_suspend(struct device *dev)
au1200_setpanel(NULL, pd);
lcd->outmask = 0;
- au_sync();
+ wmb(); /* drain writebuffer */
return 0;
}
diff --git a/drivers/video/fbdev/bfin_adv7393fb.c b/drivers/video/fbdev/bfin_adv7393fb.c
index a54f7f7d763b..8fe41caac38e 100644
--- a/drivers/video/fbdev/bfin_adv7393fb.c
+++ b/drivers/video/fbdev/bfin_adv7393fb.c
@@ -408,7 +408,7 @@ static int bfin_adv7393_fb_probe(struct i2c_client *client,
/* Workaround "PPI Does Not Start Properly In Specific Mode" */
if (ANOMALY_05000400) {
ret = gpio_request_one(P_IDENT(P_PPI0_FS3), GPIOF_OUT_INIT_LOW,
- "PPI0_FS3")
+ "PPI0_FS3");
if (ret) {
dev_err(&client->dev, "PPI0_FS3 GPIO request failed\n");
ret = -EBUSY;
diff --git a/drivers/video/fbdev/efifb.c b/drivers/video/fbdev/efifb.c
index ae9618ff6735..982f6abe6faf 100644
--- a/drivers/video/fbdev/efifb.c
+++ b/drivers/video/fbdev/efifb.c
@@ -19,8 +19,6 @@
static bool request_mem_succeeded = false;
-static struct pci_dev *default_vga;
-
static struct fb_var_screeninfo efifb_defined = {
.activate = FB_ACTIVATE_NOW,
.height = -1,
@@ -84,23 +82,10 @@ static struct fb_ops efifb_ops = {
.fb_imageblit = cfb_imageblit,
};
-struct pci_dev *vga_default_device(void)
-{
- return default_vga;
-}
-
-EXPORT_SYMBOL_GPL(vga_default_device);
-
-void vga_set_default_device(struct pci_dev *pdev)
-{
- default_vga = pdev;
-}
-
static int efifb_setup(char *options)
{
char *this_opt;
int i;
- struct pci_dev *dev = NULL;
if (options && *options) {
while ((this_opt = strsep(&options, ",")) != NULL) {
@@ -126,30 +111,6 @@ static int efifb_setup(char *options)
}
}
- for_each_pci_dev(dev) {
- int i;
-
- if ((dev->class >> 8) != PCI_CLASS_DISPLAY_VGA)
- continue;
-
- for (i=0; i < DEVICE_COUNT_RESOURCE; i++) {
- resource_size_t start, end;
-
- if (!(pci_resource_flags(dev, i) & IORESOURCE_MEM))
- continue;
-
- start = pci_resource_start(dev, i);
- end = pci_resource_end(dev, i);
-
- if (!start || !end)
- continue;
-
- if (screen_info.lfb_base >= start &&
- (screen_info.lfb_base + screen_info.lfb_size) < end)
- default_vga = dev;
- }
- }
-
return 0;
}
diff --git a/drivers/video/fbdev/omap2/dss/omapdss-boot-init.c b/drivers/video/fbdev/omap2/dss/omapdss-boot-init.c
index 99af9e88b2d8..2f0822ee3ff9 100644
--- a/drivers/video/fbdev/omap2/dss/omapdss-boot-init.c
+++ b/drivers/video/fbdev/omap2/dss/omapdss-boot-init.c
@@ -121,9 +121,11 @@ static void __init omapdss_add_to_list(struct device_node *node, bool root)
{
struct dss_conv_node *n = kmalloc(sizeof(struct dss_conv_node),
GFP_KERNEL);
- n->node = node;
- n->root = root;
- list_add(&n->list, &dss_conv_list);
+ if (n) {
+ n->node = node;
+ n->root = root;
+ list_add(&n->list, &dss_conv_list);
+ }
}
static bool __init omapdss_list_contains(const struct device_node *node)
diff --git a/drivers/video/fbdev/vt8500lcdfb.c b/drivers/video/fbdev/vt8500lcdfb.c
index a8f2b280f796..a1134c3f6c11 100644
--- a/drivers/video/fbdev/vt8500lcdfb.c
+++ b/drivers/video/fbdev/vt8500lcdfb.c
@@ -474,8 +474,6 @@ static int vt8500lcd_remove(struct platform_device *pdev)
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
release_mem_region(res->start, resource_size(res));
- kfree(fbi);
-
return 0;
}
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-10-26 23:58:51 +0200