fbdev: sh_mobile_lcdc: Don't store copy of platform data

Instead of copying the whole platform data structure to struct
sh_mobile_lcdc_chan, store a const pointer to the channel platform data.

MERAM configuration information needs to be changed at runtime, so copy
it to struct sh_mobile_lcdc_chan.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

1 files changed, 35 insertions, 36 deletions

diff --git a/drivers/video/sh_mobile_lcdcfb.c b/drivers/video/sh_mobile_lcdcfb.c
index d0c902699222..033851618323 100644
--- a/drivers/video/sh_mobile_lcdcfb.c
+++ b/drivers/video/sh_mobile_lcdcfb.c
@@ -116,7 +116,7 @@ static bool banked(int reg_nr)
 
 static int lcdc_chan_is_sublcd(struct sh_mobile_lcdc_chan *chan)
 {
-        return chan->cfg.chan == LCDC_CHAN_SUBLCD;
+        return chan->cfg->chan == LCDC_CHAN_SUBLCD;
 }
 
 static void lcdc_write_chan(struct sh_mobile_lcdc_chan *chan,
@@ -289,7 +289,7 @@ static void sh_mobile_lcdc_deferred_io(struct fb_info *info,
                                        struct list_head *pagelist)
 {
         struct sh_mobile_lcdc_chan *ch = info->par;
-        struct sh_mobile_lcdc_panel_cfg *panel = &ch->cfg.panel_cfg;
+        const struct sh_mobile_lcdc_panel_cfg *panel = &ch->cfg->panel_cfg;
 
         /* enable clocks before accessing hardware */
         sh_mobile_lcdc_clk_on(ch->lcdc);
@@ -336,7 +336,7 @@ static void sh_mobile_lcdc_deferred_io_touch(struct fb_info *info)
 
 static void sh_mobile_lcdc_display_on(struct sh_mobile_lcdc_chan *ch)
 {
-        struct sh_mobile_lcdc_panel_cfg *panel = &ch->cfg.panel_cfg;
+        const struct sh_mobile_lcdc_panel_cfg *panel = &ch->cfg->panel_cfg;
 
         if (ch->tx_dev) {
                 int ret;
@@ -356,7 +356,7 @@ static void sh_mobile_lcdc_display_on(struct sh_mobile_lcdc_chan *ch)
 
 static void sh_mobile_lcdc_display_off(struct sh_mobile_lcdc_chan *ch)
 {
-        struct sh_mobile_lcdc_panel_cfg *panel = &ch->cfg.panel_cfg;
+        const struct sh_mobile_lcdc_panel_cfg *panel = &ch->cfg->panel_cfg;
 
         if (panel->display_off)
                 panel->display_off();
@@ -644,16 +644,16 @@ static void sh_mobile_lcdc_geometry(struct sh_mobile_lcdc_chan *ch)
         tmp = ch->ldmt1r_value;
         tmp |= (var->sync & FB_SYNC_VERT_HIGH_ACT) ? 0 : LDMT1R_VPOL;
         tmp |= (var->sync & FB_SYNC_HOR_HIGH_ACT) ? 0 : LDMT1R_HPOL;
-        tmp |= (ch->cfg.flags & LCDC_FLAGS_DWPOL) ? LDMT1R_DWPOL : 0;
-        tmp |= (ch->cfg.flags & LCDC_FLAGS_DIPOL) ? LDMT1R_DIPOL : 0;
-        tmp |= (ch->cfg.flags & LCDC_FLAGS_DAPOL) ? LDMT1R_DAPOL : 0;
-        tmp |= (ch->cfg.flags & LCDC_FLAGS_HSCNT) ? LDMT1R_HSCNT : 0;
-        tmp |= (ch->cfg.flags & LCDC_FLAGS_DWCNT) ? LDMT1R_DWCNT : 0;
+        tmp |= (ch->cfg->flags & LCDC_FLAGS_DWPOL) ? LDMT1R_DWPOL : 0;
+        tmp |= (ch->cfg->flags & LCDC_FLAGS_DIPOL) ? LDMT1R_DIPOL : 0;
+        tmp |= (ch->cfg->flags & LCDC_FLAGS_DAPOL) ? LDMT1R_DAPOL : 0;
+        tmp |= (ch->cfg->flags & LCDC_FLAGS_HSCNT) ? LDMT1R_HSCNT : 0;
+        tmp |= (ch->cfg->flags & LCDC_FLAGS_DWCNT) ? LDMT1R_DWCNT : 0;
         lcdc_write_chan(ch, LDMT1R, tmp);
 
         /* setup SYS bus */
-        lcdc_write_chan(ch, LDMT2R, ch->cfg.sys_bus_cfg.ldmt2r);
-        lcdc_write_chan(ch, LDMT3R, ch->cfg.sys_bus_cfg.ldmt3r);
+        lcdc_write_chan(ch, LDMT2R, ch->cfg->sys_bus_cfg.ldmt2r);
+        lcdc_write_chan(ch, LDMT3R, ch->cfg->sys_bus_cfg.ldmt3r);
 
         /* horizontal configuration */
         h_total = mode->xres + mode->hsync_len + mode->left_margin
@@ -717,7 +717,7 @@ static void __sh_mobile_lcdc_start(struct sh_mobile_lcdc_priv *priv)
                 /* Power supply */
                 lcdc_write_chan(ch, LDPMR, 0);
 
-                m = ch->cfg.clock_divider;
+                m = ch->cfg->clock_divider;
                 if (!m)
                         continue;
 
@@ -768,7 +768,7 @@ static void __sh_mobile_lcdc_start(struct sh_mobile_lcdc_priv *priv)
                  * continuous read mode.
                  */
                 if (ch->ldmt1r_value & LDMT1R_IFM &&
-                    ch->cfg.sys_bus_cfg.deferred_io_msec) {
+                    ch->cfg->sys_bus_cfg.deferred_io_msec) {
                         lcdc_write_chan(ch, LDSM1R, LDSM1R_OS);
                         lcdc_write(priv, _LDINTR, LDINTR_FE);
                 } else {
@@ -822,13 +822,13 @@ static int sh_mobile_lcdc_start(struct sh_mobile_lcdc_priv *priv)
         lcdc_wait_bit(priv, _LDCNT2R, LDCNT2R_BR, 0);
 
         for (k = 0; k < ARRAY_SIZE(priv->ch); k++) {
-                struct sh_mobile_lcdc_panel_cfg *panel;
+                const struct sh_mobile_lcdc_panel_cfg *panel;
 
                 ch = &priv->ch[k];
                 if (!ch->enabled)
                         continue;
 
-                panel = &ch->cfg.panel_cfg;
+                panel = &ch->cfg->panel_cfg;
                 if (panel->setup_sys) {
                         ret = panel->setup_sys(ch, &sh_mobile_lcdc_sys_bus_ops);
                         if (ret)
@@ -838,7 +838,6 @@ static int sh_mobile_lcdc_start(struct sh_mobile_lcdc_priv *priv)
 
         /* Compute frame buffer base address and pitch for each channel. */
         for (k = 0; k < ARRAY_SIZE(priv->ch); k++) {
-                struct sh_mobile_meram_cfg *cfg;
                 int pixelformat;
                 void *meram;
 
@@ -850,8 +849,8 @@ static int sh_mobile_lcdc_start(struct sh_mobile_lcdc_priv *priv)
                 ch->base_addr_c = ch->base_addr_y + ch->xres * ch->yres_virtual;
 
                 /* Enable MERAM if possible. */
-                cfg = ch->cfg.meram_cfg;
-                if (mdev == NULL || mdev->ops == NULL || cfg == NULL)
+                if (mdev == NULL || mdev->ops == NULL ||
+                    ch->cfg->meram_cfg == NULL)
                         continue;
 
                 /* we need to de-init configured ICBs before we can
@@ -881,8 +880,8 @@ static int sh_mobile_lcdc_start(struct sh_mobile_lcdc_priv *priv)
                         break;
                 }
 
-                meram = mdev->ops->meram_register(mdev, cfg, ch->pitch,
-                                        ch->yres, pixelformat,
+                meram = mdev->ops->meram_register(mdev, ch->cfg->meram_cfg,
+                                        ch->pitch, ch->yres, pixelformat,
                                         ch->base_addr_y, ch->base_addr_c,
                                         &ch->base_addr_y, &ch->base_addr_c,
                                         &ch->pitch);
@@ -901,7 +900,7 @@ static int sh_mobile_lcdc_start(struct sh_mobile_lcdc_priv *priv)
                 if (!ch->enabled)
                         continue;
 
-                tmp = ch->cfg.sys_bus_cfg.deferred_io_msec;
+                tmp = ch->cfg->sys_bus_cfg.deferred_io_msec;
                 if (ch->ldmt1r_value & LDMT1R_IFM && tmp) {
                         ch->defio.deferred_io = sh_mobile_lcdc_deferred_io;
                         ch->defio.delay = msecs_to_jiffies(tmp);
@@ -1210,8 +1209,8 @@ static int sh_mobile_check_var(struct fb_var_screeninfo *var, struct fb_info *in
          * distance between two modes is defined as the size of the
          * non-overlapping parts of the two rectangles.
          */
-        for (i = 0; i < ch->cfg.num_modes; ++i) {
-                const struct fb_videomode *mode = &ch->cfg.lcd_modes[i];
+        for (i = 0; i < ch->cfg->num_modes; ++i) {
+                const struct fb_videomode *mode = &ch->cfg->lcd_modes[i];
                 unsigned int dist;
 
                 /* We can only round up. */
@@ -1230,7 +1229,7 @@ static int sh_mobile_check_var(struct fb_var_screeninfo *var, struct fb_info *in
         }
 
         /* If no available mode can be used, return an error. */
-        if (ch->cfg.num_modes != 0) {
+        if (ch->cfg->num_modes != 0) {
                 if (best_dist == (unsigned int)-1)
                         return -EINVAL;
 
@@ -1440,7 +1439,7 @@ sh_mobile_lcdc_channel_fb_register(struct sh_mobile_lcdc_chan *ch)
                 return ret;
 
         dev_info(ch->lcdc->dev, "registered %s/%s as %dx%d %dbpp.\n",
-                 dev_name(ch->lcdc->dev), (ch->cfg.chan == LCDC_CHAN_MAINLCD) ?
+                 dev_name(ch->lcdc->dev), (ch->cfg->chan == LCDC_CHAN_MAINLCD) ?
                  "mainlcd" : "sublcd", info->var.xres, info->var.yres,
                  info->var.bits_per_pixel);
 
@@ -1525,8 +1524,8 @@ sh_mobile_lcdc_channel_fb_init(struct sh_mobile_lcdc_chan *ch,
          */
         var = &info->var;
         fb_videomode_to_var(var, mode);
-        var->width = ch->cfg.panel_cfg.width;
-        var->height = ch->cfg.panel_cfg.height;
+        var->width = ch->cfg->panel_cfg.width;
+        var->height = ch->cfg->panel_cfg.height;
         var->yres_virtual = var->yres * 2;
         var->activate = FB_ACTIVATE_NOW;
 
@@ -1558,14 +1557,14 @@ static int sh_mobile_lcdc_update_bl(struct backlight_device *bdev)
             bdev->props.state & (BL_CORE_SUSPENDED | BL_CORE_FBBLANK))
                 brightness = 0;
 
-        return ch->cfg.bl_info.set_brightness(brightness);
+        return ch->cfg->bl_info.set_brightness(brightness);
 }
 
 static int sh_mobile_lcdc_get_brightness(struct backlight_device *bdev)
 {
         struct sh_mobile_lcdc_chan *ch = bl_get_data(bdev);
 
-        return ch->cfg.bl_info.get_brightness();
+        return ch->cfg->bl_info.get_brightness();
 }
 
 static int sh_mobile_lcdc_check_fb(struct backlight_device *bdev,
@@ -1586,7 +1585,7 @@ static struct backlight_device *sh_mobile_lcdc_bl_probe(struct device *parent,
 {
         struct backlight_device *bl;
 
-        bl = backlight_device_register(ch->cfg.bl_info.name, parent, ch,
+        bl = backlight_device_register(ch->cfg->bl_info.name, parent, ch,
                                        &sh_mobile_lcdc_bl_ops, NULL);
         if (IS_ERR(bl)) {
                 dev_err(parent, "unable to register backlight device: %ld\n",
@@ -1594,7 +1593,7 @@ static struct backlight_device *sh_mobile_lcdc_bl_probe(struct device *parent,
                 return NULL;
         }
 
-        bl->props.max_brightness = ch->cfg.bl_info.max_brightness;
+        bl->props.max_brightness = ch->cfg->bl_info.max_brightness;
         bl->props.brightness = bl->props.max_brightness;
         backlight_update_status(bl);
 
@@ -1727,7 +1726,7 @@ static int sh_mobile_lcdc_remove(struct platform_device *pdev)
 
                 if (ch->tx_dev) {
                         ch->tx_dev->lcdc = NULL;
-                        module_put(ch->cfg.tx_dev->dev.driver->owner);
+                        module_put(ch->cfg->tx_dev->dev.driver->owner);
                 }
 
                 sh_mobile_lcdc_channel_fb_cleanup(ch);
@@ -1758,7 +1757,7 @@ static int sh_mobile_lcdc_remove(struct platform_device *pdev)
 
 static int __devinit sh_mobile_lcdc_check_interface(struct sh_mobile_lcdc_chan *ch)
 {
-        int interface_type = ch->cfg.interface_type;
+        int interface_type = ch->cfg->interface_type;
 
         switch (interface_type) {
         case RGB8:
@@ -1801,7 +1800,7 @@ sh_mobile_lcdc_channel_init(struct sh_mobile_lcdc_priv *priv,
                             struct sh_mobile_lcdc_chan *ch)
 {
         const struct sh_mobile_lcdc_format_info *format;
-        struct sh_mobile_lcdc_chan_cfg *cfg = &ch->cfg;
+        const struct sh_mobile_lcdc_chan_cfg *cfg = ch->cfg;
         const struct fb_videomode *max_mode;
         const struct fb_videomode *mode;
         unsigned int num_modes;
@@ -1944,7 +1943,7 @@ static int __devinit sh_mobile_lcdc_probe(struct platform_device *pdev)
                 struct sh_mobile_lcdc_chan *ch = priv->ch + num_channels;
 
                 ch->lcdc = priv;
-                memcpy(&ch->cfg, &pdata->ch[i], sizeof(pdata->ch[i]));
+                ch->cfg = &pdata->ch[i];
 
                 error = sh_mobile_lcdc_check_interface(ch);
                 if (error) {
@@ -1956,7 +1955,7 @@ static int __devinit sh_mobile_lcdc_probe(struct platform_device *pdev)
                 ch->pan_offset = 0;
 
                 /* probe the backlight is there is one defined */
-                if (ch->cfg.bl_info.max_brightness)
+                if (ch->cfg->bl_info.max_brightness)
                         ch->bl = sh_mobile_lcdc_bl_probe(&pdev->dev, ch);
 
                 switch (pdata->ch[i].chan) {