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-rw-r--r--drivers/video/backlight/adp8860_bl.c1
-rw-r--r--drivers/video/backlight/pwm_bl.c232
-rw-r--r--drivers/video/console/Kconfig11
-rw-r--r--drivers/video/console/dummycon.c69
-rw-r--r--drivers/video/fbdev/core/fbcon.c83
-rw-r--r--drivers/video/fbdev/efifb.c51
-rw-r--r--drivers/video/fbdev/hyperv_fb.c6
-rw-r--r--drivers/video/fbdev/omap2/omapfb/displays/encoder-tpd12s015.c1
-rw-r--r--drivers/video/fbdev/omap2/omapfb/dss/core.c3
-rw-r--r--drivers/video/fbdev/omap2/omapfb/dss/dss_features.c3
-rw-r--r--drivers/video/fbdev/omap2/omapfb/omapfb-main.c2
11 files changed, 426 insertions, 36 deletions
diff --git a/drivers/video/backlight/adp8860_bl.c b/drivers/video/backlight/adp8860_bl.c
index 16119bde9750..f1dc41cf19e3 100644
--- a/drivers/video/backlight/adp8860_bl.c
+++ b/drivers/video/backlight/adp8860_bl.c
@@ -690,6 +690,7 @@ static int adp8860_probe(struct i2c_client *client,
switch (ADP8860_MANID(reg_val)) {
case ADP8863_MANUFID:
data->gdwn_dis = !!pdata->gdwn_dis;
+ /* fall through */
case ADP8860_MANUFID:
data->en_ambl_sens = !!pdata->en_ambl_sens;
break;
diff --git a/drivers/video/backlight/pwm_bl.c b/drivers/video/backlight/pwm_bl.c
index 44ac5bde4e9d..bdfcc0a71db1 100644
--- a/drivers/video/backlight/pwm_bl.c
+++ b/drivers/video/backlight/pwm_bl.c
@@ -143,11 +143,116 @@ static const struct backlight_ops pwm_backlight_ops = {
};
#ifdef CONFIG_OF
+#define PWM_LUMINANCE_SCALE 10000 /* luminance scale */
+
+/* An integer based power function */
+static u64 int_pow(u64 base, int exp)
+{
+ u64 result = 1;
+
+ while (exp) {
+ if (exp & 1)
+ result *= base;
+ exp >>= 1;
+ base *= base;
+ }
+
+ return result;
+}
+
+/*
+ * CIE lightness to PWM conversion.
+ *
+ * The CIE 1931 lightness formula is what actually describes how we perceive
+ * light:
+ * Y = (L* / 902.3) if L* ≤ 0.08856
+ * Y = ((L* + 16) / 116)^3 if L* > 0.08856
+ *
+ * Where Y is the luminance, the amount of light coming out of the screen, and
+ * is a number between 0.0 and 1.0; and L* is the lightness, how bright a human
+ * perceives the screen to be, and is a number between 0 and 100.
+ *
+ * The following function does the fixed point maths needed to implement the
+ * above formula.
+ */
+static u64 cie1931(unsigned int lightness, unsigned int scale)
+{
+ u64 retval;
+
+ lightness *= 100;
+ if (lightness <= (8 * scale)) {
+ retval = DIV_ROUND_CLOSEST_ULL(lightness * 10, 9023);
+ } else {
+ retval = int_pow((lightness + (16 * scale)) / 116, 3);
+ retval = DIV_ROUND_CLOSEST_ULL(retval, (scale * scale));
+ }
+
+ return retval;
+}
+
+/*
+ * Create a default correction table for PWM values to create linear brightness
+ * for LED based backlights using the CIE1931 algorithm.
+ */
+static
+int pwm_backlight_brightness_default(struct device *dev,
+ struct platform_pwm_backlight_data *data,
+ unsigned int period)
+{
+ unsigned int counter = 0;
+ unsigned int i, n;
+ u64 retval;
+
+ /*
+ * Count the number of bits needed to represent the period number. The
+ * number of bits is used to calculate the number of levels used for the
+ * brightness-levels table, the purpose of this calculation is have a
+ * pre-computed table with enough levels to get linear brightness
+ * perception. The period is divided by the number of bits so for a
+ * 8-bit PWM we have 255 / 8 = 32 brightness levels or for a 16-bit PWM
+ * we have 65535 / 16 = 4096 brightness levels.
+ *
+ * Note that this method is based on empirical testing on different
+ * devices with PWM of 8 and 16 bits of resolution.
+ */
+ n = period;
+ while (n) {
+ counter += n % 2;
+ n >>= 1;
+ }
+
+ data->max_brightness = DIV_ROUND_UP(period, counter);
+ data->levels = devm_kcalloc(dev, data->max_brightness,
+ sizeof(*data->levels), GFP_KERNEL);
+ if (!data->levels)
+ return -ENOMEM;
+
+ /* Fill the table using the cie1931 algorithm */
+ for (i = 0; i < data->max_brightness; i++) {
+ retval = cie1931((i * PWM_LUMINANCE_SCALE) /
+ data->max_brightness, PWM_LUMINANCE_SCALE) *
+ period;
+ retval = DIV_ROUND_CLOSEST_ULL(retval, PWM_LUMINANCE_SCALE);
+ if (retval > UINT_MAX)
+ return -EINVAL;
+ data->levels[i] = (unsigned int)retval;
+ }
+
+ data->dft_brightness = data->max_brightness / 2;
+ data->max_brightness--;
+
+ return 0;
+}
+
static int pwm_backlight_parse_dt(struct device *dev,
struct platform_pwm_backlight_data *data)
{
struct device_node *node = dev->of_node;
+ unsigned int num_levels = 0;
+ unsigned int levels_count;
+ unsigned int num_steps = 0;
struct property *prop;
+ unsigned int *table;
int length;
u32 value;
int ret;
@@ -157,16 +262,20 @@ static int pwm_backlight_parse_dt(struct device *dev,
memset(data, 0, sizeof(*data));
- /* determine the number of brightness levels */
+ /*
+ * Determine the number of brightness levels, if this property is not
+ * set a default table of brightness levels will be used.
+ */
prop = of_find_property(node, "brightness-levels", &length);
if (!prop)
- return -EINVAL;
+ return 0;
data->max_brightness = length / sizeof(u32);
/* read brightness levels from DT property */
if (data->max_brightness > 0) {
size_t size = sizeof(*data->levels) * data->max_brightness;
+ unsigned int i, j, n = 0;
data->levels = devm_kzalloc(dev, size, GFP_KERNEL);
if (!data->levels)
@@ -184,6 +293,84 @@ static int pwm_backlight_parse_dt(struct device *dev,
return ret;
data->dft_brightness = value;
+
+ /*
+ * This property is optional, if is set enables linear
+ * interpolation between each of the values of brightness levels
+ * and creates a new pre-computed table.
+ */
+ of_property_read_u32(node, "num-interpolated-steps",
+ &num_steps);
+
+ /*
+ * Make sure that there is at least two entries in the
+ * brightness-levels table, otherwise we can't interpolate
+ * between two points.
+ */
+ if (num_steps) {
+ if (data->max_brightness < 2) {
+ dev_err(dev, "can't interpolate\n");
+ return -EINVAL;
+ }
+
+ /*
+ * Recalculate the number of brightness levels, now
+ * taking in consideration the number of interpolated
+ * steps between two levels.
+ */
+ for (i = 0; i < data->max_brightness - 1; i++) {
+ if ((data->levels[i + 1] - data->levels[i]) /
+ num_steps)
+ num_levels += num_steps;
+ else
+ num_levels++;
+ }
+ num_levels++;
+ dev_dbg(dev, "new number of brightness levels: %d\n",
+ num_levels);
+
+ /*
+ * Create a new table of brightness levels with all the
+ * interpolated steps.
+ */
+ size = sizeof(*table) * num_levels;
+ table = devm_kzalloc(dev, size, GFP_KERNEL);
+ if (!table)
+ return -ENOMEM;
+
+ /* Fill the interpolated table. */
+ levels_count = 0;
+ for (i = 0; i < data->max_brightness - 1; i++) {
+ value = data->levels[i];
+ n = (data->levels[i + 1] - value) / num_steps;
+ if (n > 0) {
+ for (j = 0; j < num_steps; j++) {
+ table[levels_count] = value;
+ value += n;
+ levels_count++;
+ }
+ } else {
+ table[levels_count] = data->levels[i];
+ levels_count++;
+ }
+ }
+ table[levels_count] = data->levels[i];
+
+ /*
+ * As we use interpolation lets remove current
+ * brightness levels table and replace for the
+ * new interpolated table.
+ */
+ devm_kfree(dev, data->levels);
+ data->levels = table;
+
+ /*
+ * Reassign max_brightness value to the new total number
+ * of brightness levels.
+ */
+ data->max_brightness = num_levels;
+ }
+
data->max_brightness--;
}
@@ -211,6 +398,14 @@ static int pwm_backlight_parse_dt(struct device *dev,
{
return -ENODEV;
}
+
+static
+int pwm_backlight_brightness_default(struct device *dev,
+ struct platform_pwm_backlight_data *data,
+ unsigned int period)
+{
+ return -ENODEV;
+}
#endif
static int pwm_backlight_initial_power_state(const struct pwm_bl_data *pb)
@@ -251,7 +446,9 @@ static int pwm_backlight_probe(struct platform_device *pdev)
struct backlight_device *bl;
struct device_node *node = pdev->dev.of_node;
struct pwm_bl_data *pb;
+ struct pwm_state state;
struct pwm_args pargs;
+ unsigned int i;
int ret;
if (!data) {
@@ -276,17 +473,6 @@ static int pwm_backlight_probe(struct platform_device *pdev)
goto err_alloc;
}
- if (data->levels) {
- unsigned int i;
-
- for (i = 0; i <= data->max_brightness; i++)
- if (data->levels[i] > pb->scale)
- pb->scale = data->levels[i];
-
- pb->levels = data->levels;
- } else
- pb->scale = data->max_brightness;
-
pb->notify = data->notify;
pb->notify_after = data->notify_after;
pb->check_fb = data->check_fb;
@@ -353,6 +539,26 @@ static int pwm_backlight_probe(struct platform_device *pdev)
dev_dbg(&pdev->dev, "got pwm for backlight\n");
+ if (!data->levels) {
+ /* Get the PWM period (in nanoseconds) */
+ pwm_get_state(pb->pwm, &state);
+
+ ret = pwm_backlight_brightness_default(&pdev->dev, data,
+ state.period);
+ if (ret < 0) {
+ dev_err(&pdev->dev,
+ "failed to setup default brightness table\n");
+ goto err_alloc;
+ }
+ }
+
+ for (i = 0; i <= data->max_brightness; i++) {
+ if (data->levels[i] > pb->scale)
+ pb->scale = data->levels[i];
+
+ pb->levels = data->levels;
+ }
+
/*
* FIXME: pwm_apply_args() should be removed when switching to
* the atomic PWM API.
diff --git a/drivers/video/console/Kconfig b/drivers/video/console/Kconfig
index 4110ba7d7ca9..e91edef98633 100644
--- a/drivers/video/console/Kconfig
+++ b/drivers/video/console/Kconfig
@@ -150,6 +150,17 @@ config FRAMEBUFFER_CONSOLE_ROTATION
such that other users of the framebuffer will remain normally
oriented.
+config FRAMEBUFFER_CONSOLE_DEFERRED_TAKEOVER
+ bool "Framebuffer Console Deferred Takeover"
+ depends on FRAMEBUFFER_CONSOLE=y && DUMMY_CONSOLE=y
+ help
+ If enabled this defers the framebuffer console taking over the
+ console from the dummy console until the first text is displayed on
+ the console. This is useful in combination with the "quiet" kernel
+ commandline option to keep the framebuffer contents initially put up
+ by the firmware in place, rather then replacing the contents with a
+ black screen as soon as fbcon loads.
+
config STI_CONSOLE
bool "STI text console"
depends on PARISC && HAS_IOMEM
diff --git a/drivers/video/console/dummycon.c b/drivers/video/console/dummycon.c
index f2eafe2ed980..0254251fdd79 100644
--- a/drivers/video/console/dummycon.c
+++ b/drivers/video/console/dummycon.c
@@ -26,6 +26,67 @@
#define DUMMY_ROWS CONFIG_DUMMY_CONSOLE_ROWS
#endif
+#ifdef CONFIG_FRAMEBUFFER_CONSOLE_DEFERRED_TAKEOVER
+/* These are both protected by the console_lock */
+static RAW_NOTIFIER_HEAD(dummycon_output_nh);
+static bool dummycon_putc_called;
+
+void dummycon_register_output_notifier(struct notifier_block *nb)
+{
+ raw_notifier_chain_register(&dummycon_output_nh, nb);
+
+ if (dummycon_putc_called)
+ nb->notifier_call(nb, 0, NULL);
+}
+EXPORT_SYMBOL_GPL(dummycon_register_output_notifier);
+
+void dummycon_unregister_output_notifier(struct notifier_block *nb)
+{
+ raw_notifier_chain_unregister(&dummycon_output_nh, nb);
+}
+EXPORT_SYMBOL_GPL(dummycon_unregister_output_notifier);
+
+static void dummycon_putc(struct vc_data *vc, int c, int ypos, int xpos)
+{
+ dummycon_putc_called = true;
+ raw_notifier_call_chain(&dummycon_output_nh, 0, NULL);
+}
+
+static void dummycon_putcs(struct vc_data *vc, const unsigned short *s,
+ int count, int ypos, int xpos)
+{
+ int i;
+
+ if (!dummycon_putc_called) {
+ /* Ignore erases */
+ for (i = 0 ; i < count; i++) {
+ if (s[i] != vc->vc_video_erase_char)
+ break;
+ }
+ if (i == count)
+ return;
+
+ dummycon_putc_called = true;
+ }
+
+ raw_notifier_call_chain(&dummycon_output_nh, 0, NULL);
+}
+
+static int dummycon_blank(struct vc_data *vc, int blank, int mode_switch)
+{
+ /* Redraw, so that we get putc(s) for output done while blanked */
+ return 1;
+}
+#else
+static void dummycon_putc(struct vc_data *vc, int c, int ypos, int xpos) { }
+static void dummycon_putcs(struct vc_data *vc, const unsigned short *s,
+ int count, int ypos, int xpos) { }
+static int dummycon_blank(struct vc_data *vc, int blank, int mode_switch)
+{
+ return 0;
+}
+#endif
+
static const char *dummycon_startup(void)
{
return "dummy device";
@@ -44,9 +105,6 @@ static void dummycon_init(struct vc_data *vc, int init)
static void dummycon_deinit(struct vc_data *vc) { }
static void dummycon_clear(struct vc_data *vc, int sy, int sx, int height,
int width) { }
-static void dummycon_putc(struct vc_data *vc, int c, int ypos, int xpos) { }
-static void dummycon_putcs(struct vc_data *vc, const unsigned short *s,
- int count, int ypos, int xpos) { }
static void dummycon_cursor(struct vc_data *vc, int mode) { }
static bool dummycon_scroll(struct vc_data *vc, unsigned int top,
@@ -61,11 +119,6 @@ static int dummycon_switch(struct vc_data *vc)
return 0;
}
-static int dummycon_blank(struct vc_data *vc, int blank, int mode_switch)
-{
- return 0;
-}
-
static int dummycon_font_set(struct vc_data *vc, struct console_font *font,
unsigned int flags)
{
diff --git a/drivers/video/fbdev/core/fbcon.c b/drivers/video/fbdev/core/fbcon.c
index c910e74d46ff..5fb156bdcf4e 100644
--- a/drivers/video/fbdev/core/fbcon.c
+++ b/drivers/video/fbdev/core/fbcon.c
@@ -129,6 +129,12 @@ static inline void fbcon_map_override(void)
}
#endif /* CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY */
+#ifdef CONFIG_FRAMEBUFFER_CONSOLE_DEFERRED_TAKEOVER
+static bool deferred_takeover = true;
+#else
+#define deferred_takeover false
+#endif
+
/* font data */
static char fontname[40];
@@ -499,6 +505,12 @@ static int __init fb_console_setup(char *this_opt)
margin_color = simple_strtoul(options, &options, 0);
continue;
}
+#ifdef CONFIG_FRAMEBUFFER_CONSOLE_DEFERRED_TAKEOVER
+ if (!strcmp(options, "nodefer")) {
+ deferred_takeover = false;
+ continue;
+ }
+#endif
}
return 1;
}
@@ -828,6 +840,8 @@ static int set_con2fb_map(int unit, int newidx, int user)
struct fb_info *oldinfo = NULL;
int found, err = 0;
+ WARN_CONSOLE_UNLOCKED();
+
if (oldidx == newidx)
return 0;
@@ -3044,6 +3058,8 @@ static int fbcon_fb_unbind(int idx)
{
int i, new_idx = -1, ret = 0;
+ WARN_CONSOLE_UNLOCKED();
+
if (!fbcon_has_console_bind)
return 0;
@@ -3094,6 +3110,11 @@ static int fbcon_fb_unregistered(struct fb_info *info)
{
int i, idx;
+ WARN_CONSOLE_UNLOCKED();
+
+ if (deferred_takeover)
+ return 0;
+
idx = info->node;
for (i = first_fb_vc; i <= last_fb_vc; i++) {
if (con2fb_map[i] == idx)
@@ -3131,6 +3152,16 @@ static int fbcon_fb_unregistered(struct fb_info *info)
static void fbcon_remap_all(int idx)
{
int i;
+
+ WARN_CONSOLE_UNLOCKED();
+
+ if (deferred_takeover) {
+ for (i = first_fb_vc; i <= last_fb_vc; i++)
+ con2fb_map_boot[i] = idx;
+ fbcon_map_override();
+ return;
+ }
+
for (i = first_fb_vc; i <= last_fb_vc; i++)
set_con2fb_map(i, idx, 0);
@@ -3177,9 +3208,16 @@ static int fbcon_fb_registered(struct fb_info *info)
{
int ret = 0, i, idx;
+ WARN_CONSOLE_UNLOCKED();
+
idx = info->node;
fbcon_select_primary(info);
+ if (deferred_takeover) {
+ pr_info("fbcon: Deferring console take-over\n");
+ return 0;
+ }
+
if (info_idx == -1) {
for (i = first_fb_vc; i <= last_fb_vc; i++) {
if (con2fb_map_boot[i] == idx) {
@@ -3555,8 +3593,46 @@ static int fbcon_init_device(void)
return 0;
}
+#ifdef CONFIG_FRAMEBUFFER_CONSOLE_DEFERRED_TAKEOVER
+static struct notifier_block fbcon_output_nb;
+
+static int fbcon_output_notifier(struct notifier_block *nb,
+ unsigned long action, void *data)
+{
+ int i;
+
+ WARN_CONSOLE_UNLOCKED();
+
+ pr_info("fbcon: Taking over console\n");
+
+ dummycon_unregister_output_notifier(&fbcon_output_nb);
+ deferred_takeover = false;
+ logo_shown = FBCON_LOGO_DONTSHOW;
+
+ for (i = 0; i < FB_MAX; i++) {
+ if (registered_fb[i])
+ fbcon_fb_registered(registered_fb[i]);
+ }
+
+ return NOTIFY_OK;
+}
+
+static void fbcon_register_output_notifier(void)
+{
+ fbcon_output_nb.notifier_call = fbcon_output_notifier;
+ dummycon_register_output_notifier(&fbcon_output_nb);
+}
+#else
+static inline void fbcon_register_output_notifier(void) {}
+#endif
+
static void fbcon_start(void)
{
+ if (deferred_takeover) {
+ fbcon_register_output_notifier();
+ return;
+ }
+
if (num_registered_fb) {
int i;
@@ -3583,6 +3659,13 @@ static void fbcon_exit(void)
if (fbcon_has_exited)
return;
+#ifdef CONFIG_FRAMEBUFFER_CONSOLE_DEFERRED_TAKEOVER
+ if (deferred_takeover) {
+ dummycon_unregister_output_notifier(&fbcon_output_nb);
+ deferred_takeover = false;
+ }
+#endif
+
kfree((void *)softback_buf);
softback_buf = 0UL;
diff --git a/drivers/video/fbdev/efifb.c b/drivers/video/fbdev/efifb.c
index 46a4484e3da7..c6f78d27947b 100644
--- a/drivers/video/fbdev/efifb.c
+++ b/drivers/video/fbdev/efifb.c
@@ -20,7 +20,7 @@
#include <drm/drm_connector.h> /* For DRM_MODE_PANEL_ORIENTATION_* */
static bool request_mem_succeeded = false;
-static bool nowc = false;
+static u64 mem_flags = EFI_MEMORY_WC | EFI_MEMORY_UC;
static struct fb_var_screeninfo efifb_defined = {
.activate = FB_ACTIVATE_NOW,
@@ -68,8 +68,12 @@ static int efifb_setcolreg(unsigned regno, unsigned red, unsigned green,
static void efifb_destroy(struct fb_info *info)
{
- if (info->screen_base)
- iounmap(info->screen_base);
+ if (info->screen_base) {
+ if (mem_flags & (EFI_MEMORY_UC | EFI_MEMORY_WC))
+ iounmap(info->screen_base);
+ else
+ memunmap(info->screen_base);
+ }
if (request_mem_succeeded)
release_mem_region(info->apertures->ranges[0].base,
info->apertures->ranges[0].size);
@@ -104,7 +108,7 @@ static int efifb_setup(char *options)
else if (!strncmp(this_opt, "width:", 6))
screen_info.lfb_width = simple_strtoul(this_opt+6, NULL, 0);
else if (!strcmp(this_opt, "nowc"))
- nowc = true;
+ mem_flags &= ~EFI_MEMORY_WC;
}
}
@@ -164,6 +168,7 @@ static int efifb_probe(struct platform_device *dev)
unsigned int size_remap;
unsigned int size_total;
char *option = NULL;
+ efi_memory_desc_t md;
if (screen_info.orig_video_isVGA != VIDEO_TYPE_EFI || pci_dev_disabled)
return -ENODEV;
@@ -272,12 +277,35 @@ static int efifb_probe(struct platform_device *dev)
info->apertures->ranges[0].base = efifb_fix.smem_start;
info->apertures->ranges[0].size = size_remap;
- if (nowc)
- info->screen_base = ioremap(efifb_fix.smem_start, efifb_fix.smem_len);
- else
- info->screen_base = ioremap_wc(efifb_fix.smem_start, efifb_fix.smem_len);
+ if (!efi_mem_desc_lookup(efifb_fix.smem_start, &md)) {
+ if ((efifb_fix.smem_start + efifb_fix.smem_len) >
+ (md.phys_addr + (md.num_pages << EFI_PAGE_SHIFT))) {
+ pr_err("efifb: video memory @ 0x%lx spans multiple EFI memory regions\n",
+ efifb_fix.smem_start);
+ err = -EIO;
+ goto err_release_fb;
+ }
+ /*
+ * If the UEFI memory map covers the efifb region, we may only
+ * remap it using the attributes the memory map prescribes.
+ */
+ mem_flags |= EFI_MEMORY_WT | EFI_MEMORY_WB;
+ mem_flags &= md.attribute;
+ }
+ if (mem_flags & EFI_MEMORY_WC)
+ info->screen_base = ioremap_wc(efifb_fix.smem_start,
+ efifb_fix.smem_len);
+ else if (mem_flags & EFI_MEMORY_UC)
+ info->screen_base = ioremap(efifb_fix.smem_start,
+ efifb_fix.smem_len);
+ else if (mem_flags & EFI_MEMORY_WT)
+ info->screen_base = memremap(efifb_fix.smem_start,
+ efifb_fix.smem_len, MEMREMAP_WT);
+ else if (mem_flags & EFI_MEMORY_WB)
+ info->screen_base = memremap(efifb_fix.smem_start,
+ efifb_fix.smem_len, MEMREMAP_WB);
if (!info->screen_base) {
- pr_err("efifb: abort, cannot ioremap video memory 0x%x @ 0x%lx\n",
+ pr_err("efifb: abort, cannot remap video memory 0x%x @ 0x%lx\n",
efifb_fix.smem_len, efifb_fix.smem_start);
err = -EIO;
goto err_release_fb;
@@ -371,7 +399,10 @@ err_fb_dealoc:
err_groups:
sysfs_remove_groups(&dev->dev.kobj, efifb_groups);
err_unmap:
- iounmap(info->screen_base);
+ if (mem_flags & (EFI_MEMORY_UC | EFI_MEMORY_WC))
+ iounmap(info->screen_base);
+ else
+ memunmap(info->screen_base);
err_release_fb:
framebuffer_release(info);
err_release_mem:
diff --git a/drivers/video/fbdev/hyperv_fb.c b/drivers/video/fbdev/hyperv_fb.c
index 2fd49b2358f8..403d8cd3e582 100644
--- a/drivers/video/fbdev/hyperv_fb.c
+++ b/drivers/video/fbdev/hyperv_fb.c
@@ -912,6 +912,9 @@ static struct hv_driver hvfb_drv = {
.id_table = id_table,
.probe = hvfb_probe,
.remove = hvfb_remove,
+ .driver = {
+ .probe_type = PROBE_PREFER_ASYNCHRONOUS,
+ },
};
static int hvfb_pci_stub_probe(struct pci_dev *pdev,
@@ -929,6 +932,9 @@ static struct pci_driver hvfb_pci_stub_driver = {
.id_table = pci_stub_id_table,
.probe = hvfb_pci_stub_probe,
.remove = hvfb_pci_stub_remove,
+ .driver = {
+ .probe_type = PROBE_PREFER_ASYNCHRONOUS,
+ }
};
static int __init hvfb_drv_init(void)
diff --git a/drivers/video/fbdev/omap2/omapfb/displays/encoder-tpd12s015.c b/drivers/video/fbdev/omap2/omapfb/displays/encoder-tpd12s015.c
index 80dc47347e21..3079a3df8c37 100644
--- a/drivers/video/fbdev/omap2/omapfb/displays/encoder-tpd12s015.c
+++ b/drivers/video/fbdev/omap2/omapfb/displays/encoder-tpd12s015.c
@@ -12,6 +12,7 @@
#include <linux/completion.h>
#include <linux/delay.h>
#include <linux/module.h>
+#include <linux/mod_devicetable.h>
#include <linux/slab.h>
#include <linux/platform_device.h>
#include <linux/gpio/consumer.h>
diff --git a/drivers/video/fbdev/omap2/omapfb/dss/core.c b/drivers/video/fbdev/omap2/omapfb/dss/core.c
index 09e5bb013d28..a5e58a829ea0 100644
--- a/drivers/video/fbdev/omap2/omapfb/dss/core.c
+++ b/drivers/video/fbdev/omap2/omapfb/dss/core.c
@@ -137,8 +137,7 @@ static int dss_initialize_debugfs(void)
static void dss_uninitialize_debugfs(void)
{
- if (dss_debugfs_dir)
- debugfs_remove_recursive(dss_debugfs_dir);
+ debugfs_remove_recursive(dss_debugfs_dir);
}
int dss_debugfs_create_file(const char *name, void (*write)(struct seq_file *))
diff --git a/drivers/video/fbdev/omap2/omapfb/dss/dss_features.c b/drivers/video/fbdev/omap2/omapfb/dss/dss_features.c
index 8fc843b56b26..e8d428bc47e3 100644
--- a/drivers/video/fbdev/omap2/omapfb/dss/dss_features.c
+++ b/drivers/video/fbdev/omap2/omapfb/dss/dss_features.c
@@ -891,8 +891,7 @@ bool dss_has_feature(enum dss_feat_id id)
void dss_feat_get_reg_field(enum dss_feat_reg_field id, u8 *start, u8 *end)
{
- if (id >= omap_current_dss_features->num_reg_fields)
- BUG();
+ BUG_ON(id >= omap_current_dss_features->num_reg_fields);
*start = omap_current_dss_features->reg_fields[id].start;
*end = omap_current_dss_features->reg_fields[id].end;
diff --git a/drivers/video/fbdev/omap2/omapfb/omapfb-main.c b/drivers/video/fbdev/omap2/omapfb/omapfb-main.c
index e08e5664e330..3e7887c53d7c 100644
--- a/drivers/video/fbdev/omap2/omapfb/omapfb-main.c
+++ b/drivers/video/fbdev/omap2/omapfb/omapfb-main.c
@@ -287,7 +287,7 @@ static bool cmp_var_to_colormode(struct fb_var_screeninfo *var,
var->red.length == 0 ||
var->blue.length == 0 ||
var->green.length == 0)
- return 0;
+ return false;
return var->bits_per_pixel == color->bits_per_pixel &&
cmp_component(&var->red, &color->red) &&
generated by cgit v1.2.3 (git 2.39.0) at 2025-02-20 14:06:22 +0300