| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Date: Tue, 17 Nov 2015 21:32:16 +0100
From: Robert Jarzmik <robert.jarzmik@...e.fr>
To: Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>,
Tomi Valkeinen <tomi.valkeinen@...com>
Cc: linux-fbdev@...r.kernel.org, linux-kernel@...r.kernel.org,
Robert Jarzmik <robert.jarzmik@...e.fr>
Subject: [PATCH v5 1/2] video: fbdev: pxafb: loosen the platform data bond
In order to prepare the transition to a mixed platform data and
device-tree initialization, remove all the platform data references all
over the driver.
Copy the platform data into the internal structure of the pxafb, and
only use this afterward.
Signed-off-by: Robert Jarzmik <robert.jarzmik@...e.fr>
---
drivers/video/fbdev/pxafb.c | 54 ++++++++++++++++++++++++++++-----------------
drivers/video/fbdev/pxafb.h | 2 ++
2 files changed, 36 insertions(+), 20 deletions(-)
diff --git a/drivers/video/fbdev/pxafb.c b/drivers/video/fbdev/pxafb.c
index 94813af97f09..ed4b1a5dc306 100644
--- a/drivers/video/fbdev/pxafb.c
+++ b/drivers/video/fbdev/pxafb.c
@@ -457,7 +457,7 @@ static int pxafb_adjust_timing(struct pxafb_info *fbi,
static int pxafb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
{
struct pxafb_info *fbi = container_of(info, struct pxafb_info, fb);
- struct pxafb_mach_info *inf = dev_get_platdata(fbi->dev);
+ struct pxafb_mach_info *inf = fbi->inf;
int err;
if (inf->fixed_modes) {
@@ -1230,7 +1230,7 @@ static unsigned int __smart_timing(unsigned time_ns, unsigned long lcd_clk)
static void setup_smart_timing(struct pxafb_info *fbi,
struct fb_var_screeninfo *var)
{
- struct pxafb_mach_info *inf = dev_get_platdata(fbi->dev);
+ struct pxafb_mach_info *inf = fbi->inf;
struct pxafb_mode_info *mode = &inf->modes[0];
unsigned long lclk = clk_get_rate(fbi->clk);
unsigned t1, t2, t3, t4;
@@ -1258,14 +1258,13 @@ static void setup_smart_timing(struct pxafb_info *fbi,
static int pxafb_smart_thread(void *arg)
{
struct pxafb_info *fbi = arg;
- struct pxafb_mach_info *inf = dev_get_platdata(fbi->dev);
+ struct pxafb_mach_info *inf = fbi->inf;
if (!inf->smart_update) {
pr_err("%s: not properly initialized, thread terminated\n",
__func__);
return -EINVAL;
}
- inf = dev_get_platdata(fbi->dev);
pr_debug("%s(): task starting\n", __func__);
@@ -1788,11 +1787,11 @@ decode_mode:
fbi->video_mem_size = video_mem_size;
}
-static struct pxafb_info *pxafb_init_fbinfo(struct device *dev)
+static struct pxafb_info *pxafb_init_fbinfo(struct device *dev,
+ struct pxafb_mach_info *inf)
{
struct pxafb_info *fbi;
void *addr;
- struct pxafb_mach_info *inf = dev_get_platdata(dev);
/* Alloc the pxafb_info and pseudo_palette in one step */
fbi = kmalloc(sizeof(struct pxafb_info) + sizeof(u32) * 16, GFP_KERNEL);
@@ -1801,6 +1800,7 @@ static struct pxafb_info *pxafb_init_fbinfo(struct device *dev)
memset(fbi, 0, sizeof(struct pxafb_info));
fbi->dev = dev;
+ fbi->inf = inf;
fbi->clk = clk_get(dev, NULL);
if (IS_ERR(fbi->clk)) {
@@ -1852,10 +1852,9 @@ static struct pxafb_info *pxafb_init_fbinfo(struct device *dev)
}
#ifdef CONFIG_FB_PXA_PARAMETERS
-static int parse_opt_mode(struct device *dev, const char *this_opt)
+static int parse_opt_mode(struct device *dev, const char *this_opt,
+ struct pxafb_mach_info *inf)
{
- struct pxafb_mach_info *inf = dev_get_platdata(dev);
-
const char *name = this_opt+5;
unsigned int namelen = strlen(name);
int res_specified = 0, bpp_specified = 0;
@@ -1911,9 +1910,9 @@ done:
return 0;
}
-static int parse_opt(struct device *dev, char *this_opt)
+static int parse_opt(struct device *dev, char *this_opt,
+ struct pxafb_mach_info *inf)
{
- struct pxafb_mach_info *inf = dev_get_platdata(dev);
struct pxafb_mode_info *mode = &inf->modes[0];
char s[64];
@@ -1922,7 +1921,7 @@ static int parse_opt(struct device *dev, char *this_opt)
if (!strncmp(this_opt, "vmem:", 5)) {
video_mem_size = memparse(this_opt + 5, NULL);
} else if (!strncmp(this_opt, "mode:", 5)) {
- return parse_opt_mode(dev, this_opt);
+ return parse_opt_mode(dev, this_opt, inf);
} else if (!strncmp(this_opt, "pixclock:", 9)) {
mode->pixclock = simple_strtoul(this_opt+9, NULL, 0);
sprintf(s, "pixclock: %ld\n", mode->pixclock);
@@ -2011,7 +2010,8 @@ static int parse_opt(struct device *dev, char *this_opt)
return 0;
}
-static int pxafb_parse_options(struct device *dev, char *options)
+static int pxafb_parse_options(struct device *dev, char *options,
+ struct pxafb_mach_info *inf)
{
char *this_opt;
int ret;
@@ -2023,7 +2023,7 @@ static int pxafb_parse_options(struct device *dev, char *options)
/* could be made table driven or similar?... */
while ((this_opt = strsep(&options, ",")) != NULL) {
- ret = parse_opt(dev, this_opt);
+ ret = parse_opt(dev, this_opt, inf);
if (ret)
return ret;
}
@@ -2095,19 +2095,33 @@ static void pxafb_check_options(struct device *dev, struct pxafb_mach_info *inf)
static int pxafb_probe(struct platform_device *dev)
{
struct pxafb_info *fbi;
- struct pxafb_mach_info *inf;
+ struct pxafb_mach_info *inf, *pdata;
struct resource *r;
- int irq, ret;
+ int i, irq, ret;
dev_dbg(&dev->dev, "pxafb_probe\n");
- inf = dev_get_platdata(&dev->dev);
ret = -ENOMEM;
- fbi = NULL;
+ pdata = dev_get_platdata(&dev->dev);
+ inf = devm_kmalloc(&dev->dev, sizeof(*inf), GFP_KERNEL);
if (!inf)
goto failed;
+ if (pdata) {
+ *inf = *pdata;
+ inf->modes =
+ devm_kmalloc_array(&dev->dev, pdata->num_modes,
+ sizeof(inf->modes[0]), GFP_KERNEL);
+ if (!inf->modes)
+ goto failed;
+ for (i = 0; i < inf->num_modes; i++)
+ inf->modes[i] = pdata->modes[i];
+ }
+
+ fbi = NULL;
+ if (!pdata)
+ goto failed;
- ret = pxafb_parse_options(&dev->dev, g_options);
+ ret = pxafb_parse_options(&dev->dev, g_options, inf);
if (ret < 0)
goto failed;
@@ -2125,7 +2139,7 @@ static int pxafb_probe(struct platform_device *dev)
goto failed;
}
- fbi = pxafb_init_fbinfo(&dev->dev);
+ fbi = pxafb_init_fbinfo(&dev->dev, inf);
if (!fbi) {
/* only reason for pxafb_init_fbinfo to fail is kmalloc */
dev_err(&dev->dev, "Failed to initialize framebuffer device\n");
diff --git a/drivers/video/fbdev/pxafb.h b/drivers/video/fbdev/pxafb.h
index 26ba9fa3f737..5dc414e26fc8 100644
--- a/drivers/video/fbdev/pxafb.h
+++ b/drivers/video/fbdev/pxafb.h
@@ -167,6 +167,8 @@ struct pxafb_info {
void (*lcd_power)(int, struct fb_var_screeninfo *);
void (*backlight_power)(int);
+
+ struct pxafb_mach_info *inf;
};
#define TO_INF(ptr,member) container_of(ptr,struct pxafb_info,member)
--
2.1.4
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists