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@free.fr>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

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)