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fbdev changes for v5.1:

Browse Source 
- fix memory access if logo is bigger than the screen (Manfred
   Schlaegl)
 
 - silence fbcon logo on 'quiet' boots (Prarit Bhargava)
 
 - use kvmalloc() for scrollback buffer in fbcon (Konstantin Khorenko)
 
 - misc fixes (Colin Ian King, YueHaibing, Matteo Croce, Mathieu
   Malaterre, Anders Roxell, Arnd Bergmann)
 
 - misc cleanups (Rob Herring, Lubomir Rintel, Greg Kroah-Hartman,
   Jani Nikula, Michal Vokáč)
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Merge tag 'fbdev-v5.1' of git://github.com/bzolnier/linux

Pull fbdev updates from Bartlomiej Zolnierkiewicz:
 "Just a couple of small fixes and cleanups:

   - fix memory access if logo is bigger than the screen (Manfred
     Schlaegl)

   - silence fbcon logo on 'quiet' boots (Prarit Bhargava)

   - use kvmalloc() for scrollback buffer in fbcon (Konstantin Khorenko)

   - misc fixes (Colin Ian King, YueHaibing, Matteo Croce, Mathieu
     Malaterre, Anders Roxell, Arnd Bergmann)

   - misc cleanups (Rob Herring, Lubomir Rintel, Greg Kroah-Hartman,
     Jani Nikula, Michal Vokáč)"

* tag 'fbdev-v5.1' of git://github.com/bzolnier/linux:
  fbdev: mbx: fix a misspelled variable name
  fbdev: omap2: fix warnings in dss core
  video: fbdev: Fix potential NULL pointer dereference
  fbcon: Silence fbcon logo on 'quiet' boots
  printk: Export console_printk
  ARM: dts: imx28-cfa10036: Fix the reset gpio signal polarity
  video: ssd1307fb: Do not hard code active-low reset sequence
  dt-bindings: display: ssd1307fb: Remove reset-active-low from examples
  fbdev: fbmem: fix memory access if logo is bigger than the screen
  video/fbdev: refactor video= cmdline parsing
  fbdev: mbx: fix up debugfs file creation
  fbdev: omap2: no need to check return value of debugfs_create functions
  video: fbdev: geode: remove ifdef OLPC noise
  video: offb: annotate implicit fall throughs
  omapfb: fix typo
  fbdev: Use of_node_name_eq for node name comparisons
  fbcon: use kvmalloc() for scrollback buffer
  fbdev: chipsfb: remove set but not used variable 'size'
  fbdev/via: fix spelling mistake "Expandsion" -> "Expansion"
This commit is contained in:
Linus Torvalds 2019-03-15 14:22:59 -07:00
commit 2b9c272cf5
24 changed files with 69 additions and 114 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
Documentation/devicetree/bindings/display/ssd1307fb.txt
View File

@ -36,7 +36,6 @@ ssd1307: oled@3c {
reg = <0x3c>;
pwms = <&pwm 4 3000>;
reset-gpios = <&gpio2 7>;
reset-active-low;
};
ssd1306: oled@3c {
@ -44,7 +43,6 @@ ssd1306: oled@3c {
reg = <0x3c>;
pwms = <&pwm 4 3000>;
reset-gpios = <&gpio2 7>;
reset-active-low;
solomon,com-lrremap;
solomon,com-invdir;
solomon,com-offset = <32>;

3
arch/arm/boot/dts/imx28-cfa10036.dts
View File

@ -11,6 +11,7 @@
/dts-v1/;
#include "imx28.dtsi"
#include <dt-bindings/gpio/gpio.h>
/ {
model = "Crystalfontz CFA-10036 Board";
@ -96,7 +97,7 @@
pinctrl-names = "default";
pinctrl-0 = <&ssd1306_cfa10036>;
reg = <0x3c>;
reset-gpios = <&gpio2 7 0>;
reset-gpios = <&gpio2 7 GPIO_ACTIVE_LOW>;
solomon,height = <32>;
solomon,width = <128>;
solomon,page-offset = <0>;

6
drivers/video/fbdev/aty/radeon_pm.c
View File

@ -2844,8 +2844,8 @@ void radeonfb_pm_init(struct radeonfb_info *rinfo, int dynclk, int ignore_devlis
* in some desktop G4s), Via (M9+ chip on iBook G4) and
* Snowy (M11 chip on iBook G4 manufactured after July 2005)
*/
if (!strcmp(rinfo->of_node->name, "ATY,JasperParent") ||
!strcmp(rinfo->of_node->name, "ATY,SnowyParent")) {
if (of_node_name_eq(rinfo->of_node, "ATY,JasperParent") ||
of_node_name_eq(rinfo->of_node, "ATY,SnowyParent")) {
rinfo->reinit_func = radeon_reinitialize_M10;
rinfo->pm_mode |= radeon_pm_off;
}
@ -2855,7 +2855,7 @@ void radeonfb_pm_init(struct radeonfb_info *rinfo, int dynclk, int ignore_devlis
rinfo->pm_mode |= radeon_pm_off;
}
#endif
if (!strcmp(rinfo->of_node->name, "ATY,ViaParent")) {
if (of_node_name_eq(rinfo->of_node, "ATY,ViaParent")) {
rinfo->reinit_func = radeon_reinitialize_M9P;
rinfo->pm_mode |= radeon_pm_off;
}

4
drivers/video/fbdev/cg14.c
View File

@ -486,8 +486,8 @@ static int cg14_probe(struct platform_device *op)
info->var.xres);
info->fix.smem_len = PAGE_ALIGN(linebytes * info->var.yres);
if (!strcmp(dp->parent->name, "sbus") ||
!strcmp(dp->parent->name, "sbi")) {
if (of_node_name_eq(dp->parent, "sbus") ||
of_node_name_eq(dp->parent, "sbi")) {
info->fix.smem_start = op->resource[0].start;
par->iospace = op->resource[0].flags & IORESOURCE_BITS;
} else {

2
drivers/video/fbdev/cg3.c
View File

@ -369,7 +369,7 @@ static int cg3_probe(struct platform_device *op)
info->var.red.length = 8;
info->var.green.length = 8;
info->var.blue.length = 8;
if (!strcmp(dp->name, "cgRDI"))
if (of_node_name_eq(dp, "cgRDI"))
par->flags |= CG3_FLAG_RDI;
if (par->flags & CG3_FLAG_RDI)
cg3_rdi_maybe_fixup_var(&info->var, dp);

3
drivers/video/fbdev/chipsfb.c
View File

@ -349,7 +349,7 @@ static void init_chips(struct fb_info *p, unsigned long addr)
static int chipsfb_pci_init(struct pci_dev *dp, const struct pci_device_id *ent)
{
struct fb_info *p;
unsigned long addr, size;
unsigned long addr;
unsigned short cmd;
int rc = -ENODEV;
@ -361,7 +361,6 @@ static int chipsfb_pci_init(struct pci_dev *dp, const struct pci_device_id *ent)
if ((dp->resource[0].flags & IORESOURCE_MEM) == 0)
goto err_disable;
addr = pci_resource_start(dp, 0);
size = pci_resource_len(dp, 0);
if (addr == 0)
goto err_disable;

23
drivers/video/fbdev/core/fb_cmdline.c
View File

@ -75,36 +75,33 @@ EXPORT_SYMBOL(fb_get_options);
* NOTE: This function is a __setup and __init function.
* It only stores the options. Drivers have to call
* fb_get_options() as necessary.
*
* Returns zero.
*
*/
static int __init video_setup(char *options)
{
int i, global = 0;
if (!options || !*options)
global = 1;
goto out;
if (!global && !strncmp(options, "ofonly", 6)) {
if (!strncmp(options, "ofonly", 6)) {
ofonly = 1;
global = 1;
goto out;
}
if (!global && !strchr(options, ':')) {
fb_mode_option = options;
global = 1;
}
if (strchr(options, ':')) {
/* named */
int i;
if (!global) {
for (i = 0; i < FB_MAX; i++) {
if (video_options[i] == NULL) {
video_options[i] = options;
break;
}
}
} else {
/* global */
fb_mode_option = options;
}
out:
return 1;
}
__setup("video=", video_setup);

14
drivers/video/fbdev/core/fbcon.c
View File

@ -656,11 +656,14 @@ static void fbcon_prepare_logo(struct vc_data *vc, struct fb_info *info,
kfree(save);
}
if (logo_shown == FBCON_LOGO_DONTSHOW)
return;
if (logo_lines > vc->vc_bottom) {
logo_shown = FBCON_LOGO_CANSHOW;
printk(KERN_INFO
"fbcon_init: disable boot-logo (boot-logo bigger than screen).\n");
} else if (logo_shown != FBCON_LOGO_DONTSHOW) {
} else {
logo_shown = FBCON_LOGO_DRAW;
vc->vc_top = logo_lines;
}
@ -999,7 +1002,7 @@ static const char *fbcon_startup(void)
if (!softback_buf) {
softback_buf =
(unsigned long)
kmalloc(fbcon_softback_size,
kvmalloc(fbcon_softback_size,
GFP_KERNEL);
if (!softback_buf) {
fbcon_softback_size = 0;
@ -1008,7 +1011,7 @@ static const char *fbcon_startup(void)
}
} else {
if (softback_buf) {
kfree((void *) softback_buf);
kvfree((void *) softback_buf);
softback_buf = 0;
softback_top = 0;
}
@ -1066,6 +1069,9 @@ static void fbcon_init(struct vc_data *vc, int init)
cap = info->flags;
if (console_loglevel <= CONSOLE_LOGLEVEL_QUIET)
logo_shown = FBCON_LOGO_DONTSHOW;
if (vc != svc || logo_shown == FBCON_LOGO_DONTSHOW ||
(info->fix.type == FB_TYPE_TEXT))
logo = 0;
@ -3672,7 +3678,7 @@ static void fbcon_exit(void)
}
#endif
kfree((void *)softback_buf);
kvfree((void *)softback_buf);
softback_buf = 0UL;
for_each_registered_fb(i) {

3
drivers/video/fbdev/core/fbmem.c
View File

@ -431,6 +431,9 @@ static void fb_do_show_logo(struct fb_info *info, struct fb_image *image,
{
unsigned int x;
if (image->width > info->var.xres || image->height > info->var.yres)
return;
if (rotate == FB_ROTATE_UR) {
for (x = 0;
x < num && image->dx + image->width <= info->var.xres;

2
drivers/video/fbdev/core/fbmon.c
View File

@ -978,6 +978,8 @@ void fb_edid_to_monspecs(unsigned char *edid, struct fb_monspecs *specs)
get_monspecs(edid, specs);
specs->modedb = fb_create_modedb(edid, &specs->modedb_len, specs);
if (!specs->modedb)
return;
/*
* Workaround for buggy EDIDs that sets that the first

2
drivers/video/fbdev/ffb.c
View File

@ -944,7 +944,7 @@ static int ffb_probe(struct platform_device *op)
info->var.accel_flags = FB_ACCELF_TEXT;
if (!strcmp(dp->name, "SUNW,afb"))
if (of_node_name_eq(dp, "SUNW,afb"))
par->flags |= FFB_FLAG_AFB;
par->board_type = of_getintprop_default(dp, "board_type", 0);

13
drivers/video/fbdev/geode/gxfb_core.c
View File

@ -33,6 +33,8 @@
#include <linux/pci.h>
#include <linux/cs5535.h>
#include <asm/olpc.h>
#include "gxfb.h"
static char *mode_option;
@ -107,9 +109,6 @@ static struct fb_videomode gx_modedb[] = {
FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
};
#ifdef CONFIG_OLPC
#include <asm/olpc.h>
static struct fb_videomode gx_dcon_modedb[] = {
/* The only mode the DCON has is 1200x900 */
{ NULL, 50, 1200, 900, 17460, 24, 8, 4, 5, 8, 3,
@ -128,14 +127,6 @@ static void get_modedb(struct fb_videomode **modedb, unsigned int *size)
}
}
#else
static void get_modedb(struct fb_videomode **modedb, unsigned int *size)
{
*modedb = (struct fb_videomode *) gx_modedb;
*size = ARRAY_SIZE(gx_modedb);
}
#endif
static int gxfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
{
if (var->xres > 1600 || var->yres > 1200)

13
drivers/video/fbdev/geode/lxfb_core.c
View File

@ -23,6 +23,8 @@
#include <linux/pci.h>
#include <linux/uaccess.h>
#include <asm/olpc.h>
#include "lxfb.h"
static char *mode_option;
@ -216,9 +218,6 @@ static struct fb_videomode geode_modedb[] = {
0, FB_VMODE_NONINTERLACED, 0 },
};
#ifdef CONFIG_OLPC
#include <asm/olpc.h>
static struct fb_videomode olpc_dcon_modedb[] = {
/* The only mode the DCON has is 1200x900 */
{ NULL, 50, 1200, 900, 17460, 24, 8, 4, 5, 8, 3,
@ -237,14 +236,6 @@ static void get_modedb(struct fb_videomode **modedb, unsigned int *size)
}
}
#else
static void get_modedb(struct fb_videomode **modedb, unsigned int *size)
{
*modedb = (struct fb_videomode *) geode_modedb;
*size = ARRAY_SIZE(geode_modedb);
}
#endif
static int lxfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
{
if (var->xres > 1920 || var->yres > 1440)

4
drivers/video/fbdev/imsttfb.c
View File

@ -1497,8 +1497,8 @@ static int imsttfb_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
switch (pdev->device) {
case PCI_DEVICE_ID_IMS_TT128: /* IMS,tt128mbA */
par->ramdac = IBM;
if (dp && ((strcmp(dp->name, "IMS,tt128mb8") == 0) ||
(strcmp(dp->name, "IMS,tt128mb8A") == 0)))
if (of_node_name_eq(dp, "IMS,tt128mb8") ||
of_node_name_eq(dp, "IMS,tt128mb8A"))
par->ramdac = TVP;
break;
case PCI_DEVICE_ID_IMS_TT3D: /* IMS,tt3d */

34
drivers/video/fbdev/mbx/mbxdebugfs.c
View File

@ -211,36 +211,22 @@ static const struct file_operations misc_fops = {
static void mbxfb_debugfs_init(struct fb_info *fbi)
{
struct mbxfb_info *mfbi = fbi->par;
struct mbxfb_debugfs_data *dbg;
struct dentry *dir;
dbg = kzalloc(sizeof(struct mbxfb_debugfs_data), GFP_KERNEL);
mfbi->debugfs_data = dbg;
dir = debugfs_create_dir("mbxfb", NULL);
mfbi->debugfs_dir = dir;
dbg->dir = debugfs_create_dir("mbxfb", NULL);
dbg->sysconf = debugfs_create_file("sysconf", 0444, dbg->dir,
fbi, &sysconf_fops);
dbg->clock = debugfs_create_file("clock", 0444, dbg->dir,
fbi, &clock_fops);
dbg->display = debugfs_create_file("display", 0444, dbg->dir,
fbi, &display_fops);
dbg->gsctl = debugfs_create_file("gsctl", 0444, dbg->dir,
fbi, &gsctl_fops);
dbg->sdram = debugfs_create_file("sdram", 0444, dbg->dir,
fbi, &sdram_fops);
dbg->misc = debugfs_create_file("misc", 0444, dbg->dir,
fbi, &misc_fops);
debugfs_create_file("sysconf", 0444, dir, fbi, &sysconf_fops);
debugfs_create_file("clock", 0444, dir, fbi, &clock_fops);
debugfs_create_file("display", 0444, dir, fbi, &display_fops);
debugfs_create_file("gsctl", 0444, dir, fbi, &gsctl_fops);
debugfs_create_file("sdram", 0444, dir, fbi, &sdram_fops);
debugfs_create_file("misc", 0444, dir, fbi, &misc_fops);
}
static void mbxfb_debugfs_remove(struct fb_info *fbi)
{
struct mbxfb_info *mfbi = fbi->par;
struct mbxfb_debugfs_data *dbg = mfbi->debugfs_data;
debugfs_remove(dbg->misc);
debugfs_remove(dbg->sdram);
debugfs_remove(dbg->gsctl);
debugfs_remove(dbg->display);
debugfs_remove(dbg->clock);
debugfs_remove(dbg->sysconf);
debugfs_remove(dbg->dir);
debugfs_remove_recursive(mfbi->debugfs_dir);
}

2
drivers/video/fbdev/mbx/mbxfb.c
View File

@ -74,7 +74,7 @@ struct mbxfb_info {
u32 pseudo_palette[MAX_PALETTES];
#ifdef CONFIG_FB_MBX_DEBUG
void *debugfs_data;
struct dentry *debugfs_dir;
#endif
};

4
drivers/video/fbdev/offb.c
View File

@ -141,6 +141,7 @@ static int offb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
/* Clear PALETTE_ACCESS_CNTL in DAC_CNTL */
out_le32(par->cmap_adr + 0x58,
in_le32(par->cmap_adr + 0x58) & ~0x20);
/* fall through */
case cmap_r128:
/* Set palette index & data */
out_8(par->cmap_adr + 0xb0, regno);
@ -210,6 +211,7 @@ static int offb_blank(int blank, struct fb_info *info)
/* Clear PALETTE_ACCESS_CNTL in DAC_CNTL */
out_le32(par->cmap_adr + 0x58,
in_le32(par->cmap_adr + 0x58) & ~0x20);
/* fall through */
case cmap_r128:
/* Set palette index & data */
out_8(par->cmap_adr + 0xb0, i);
@ -646,7 +648,7 @@ static void __init offb_init_nodriver(struct device_node *dp, int no_real_node)
}
#endif
/* kludge for valkyrie */
if (strcmp(dp->name, "valkyrie") == 0)
if (of_node_name_eq(dp, "valkyrie"))
address += 0x1000;
offb_init_fb(no_real_node ? "bootx" : NULL,
width, height, depth, pitch, address,

34
drivers/video/fbdev/omap2/omapfb/dss/core.c
View File

@ -110,19 +110,12 @@ DEFINE_SHOW_ATTRIBUTE(dss);
static struct dentry *dss_debugfs_dir;
static int dss_initialize_debugfs(void)
static void dss_initialize_debugfs(void)
{
dss_debugfs_dir = debugfs_create_dir("omapdss", NULL);
if (IS_ERR(dss_debugfs_dir)) {
int err = PTR_ERR(dss_debugfs_dir);
dss_debugfs_dir = NULL;
return err;
}
debugfs_create_file("clk", S_IRUGO, dss_debugfs_dir,
&dss_debug_dump_clocks, &dss_fops);
return 0;
}
static void dss_uninitialize_debugfs(void)
@ -130,26 +123,19 @@ static void dss_uninitialize_debugfs(void)
debugfs_remove_recursive(dss_debugfs_dir);
}
int dss_debugfs_create_file(const char *name, void (*write)(struct seq_file *))
void dss_debugfs_create_file(const char *name, void (*write)(struct seq_file *))
{
struct dentry *d;
d = debugfs_create_file(name, S_IRUGO, dss_debugfs_dir,
write, &dss_fops);
return PTR_ERR_OR_ZERO(d);
debugfs_create_file(name, S_IRUGO, dss_debugfs_dir, write, &dss_fops);
}
#else /* CONFIG_FB_OMAP2_DSS_DEBUGFS */
static inline int dss_initialize_debugfs(void)
static inline void dss_initialize_debugfs(void)
{
return 0;
}
static inline void dss_uninitialize_debugfs(void)
{
}
int dss_debugfs_create_file(const char *name, void (*write)(struct seq_file *))
void dss_debugfs_create_file(const char *name, void (*write)(struct seq_file *))
{
return 0;
}
#endif /* CONFIG_FB_OMAP2_DSS_DEBUGFS */
@ -182,15 +168,11 @@ static struct notifier_block omap_dss_pm_notif_block = {
static int __init omap_dss_probe(struct platform_device *pdev)
{
int r;
core.pdev = pdev;
dss_features_init(omapdss_get_version());
r = dss_initialize_debugfs();
if (r)
goto err_debugfs;
dss_initialize_debugfs();
if (def_disp_name)
core.default_display_name = def_disp_name;
@ -198,10 +180,6 @@ static int __init omap_dss_probe(struct platform_device *pdev)
register_pm_notifier(&omap_dss_pm_notif_block);
return 0;
err_debugfs:
return r;
}
static int omap_dss_remove(struct platform_device *pdev)

4
drivers/video/fbdev/omap2/omapfb/dss/dss-of.c
View File

@ -60,7 +60,7 @@ omapdss_of_get_next_port(const struct device_node *parent,
return NULL;
}
prev = port;
} while (of_node_cmp(port->name, "port") != 0);
} while (!of_node_name_eq(port, "port"));
of_node_put(ports);
}
@ -83,7 +83,7 @@ omapdss_of_get_next_endpoint(const struct device_node *parent,
if (!ep)
return NULL;
prev = ep;
} while (of_node_cmp(ep->name, "endpoint") != 0);
} while (!of_node_name_eq(ep, "endpoint"));
return ep;
}

2
drivers/video/fbdev/omap2/omapfb/dss/dss.h
View File

@ -214,7 +214,7 @@ struct platform_device *dss_get_core_pdev(void);
int dss_dsi_enable_pads(int dsi_id, unsigned lane_mask);
void dss_dsi_disable_pads(int dsi_id, unsigned lane_mask);
int dss_set_min_bus_tput(struct device *dev, unsigned long tput);
int dss_debugfs_create_file(const char *name, void (*write)(struct seq_file *));
void dss_debugfs_create_file(const char *name, void (*write)(struct seq_file *));
/* display */
int dss_suspend_all_devices(void);

2
drivers/video/fbdev/omap2/omapfb/dss/hdmi4_core.c
View File

@ -712,7 +712,7 @@ int hdmi4_audio_config(struct hdmi_core_data *core, struct hdmi_wp_data *wp,
else
acore.i2s_cfg.justification = HDMI_AUDIO_JUSTIFY_RIGHT;
/*
* The I2S input word length is twice the lenght given in the IEC-60958
* The I2S input word length is twice the length given in the IEC-60958
* status word. If the word size is greater than
* 20 bits, increment by one.
*/

4
drivers/video/fbdev/ssd1307fb.c
View File

@ -667,10 +667,10 @@ static int ssd1307fb_probe(struct i2c_client *client,
if (par->reset) {
/* Reset the screen */
gpiod_set_value_cansleep(par->reset, 0);
udelay(4);
gpiod_set_value_cansleep(par->reset, 1);
udelay(4);
gpiod_set_value_cansleep(par->reset, 0);
udelay(4);
}
if (par->vbat_reg) {

2
drivers/video/fbdev/via/viafbdev.c
View File

@ -2110,7 +2110,7 @@ MODULE_PARM_DESC(viafb_lcd_panel_id,
module_param(viafb_lcd_dsp_method, int, S_IRUSR);
MODULE_PARM_DESC(viafb_lcd_dsp_method,
"Set Flat Panel display scaling method.(Default=Expandsion)");
"Set Flat Panel display scaling method.(Default=Expansion)");
module_param(viafb_SAMM_ON, int, S_IRUSR);
MODULE_PARM_DESC(viafb_SAMM_ON,

1
kernel/printk/printk.c
View File

@ -65,6 +65,7 @@ int console_printk[4] = {
CONSOLE_LOGLEVEL_MIN, /* minimum_console_loglevel */
CONSOLE_LOGLEVEL_DEFAULT, /* default_console_loglevel */
};
EXPORT_SYMBOL_GPL(console_printk);
atomic_t ignore_console_lock_warning __read_mostly = ATOMIC_INIT(0);
EXPORT_SYMBOL(ignore_console_lock_warning);