AUO-K190x: add framebuffer rotation support

Change the driver to use the framebuffer rotation functions to be
able to change the rotation at runtime.

This also removes the setting of the rotation via the platform data.

Signed-off-by: Heiko Stübner <heiko@sntech.de>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

2 files changed, 20 insertions, 6 deletions

diff --git a/drivers/video/auo_k190x.c b/drivers/video/auo_k190x.c
index c2a945183a5d..baf213cdbe3d 100644
--- a/drivers/video/auo_k190x.c
+++ b/drivers/video/auo_k190x.c
@@ -487,12 +487,20 @@ static int auok190xfb_check_var(struct fb_var_screeninfo *var,
          * Dimensions
          */
 
-        if (par->rotation & 1) {
-                var->xres = panel->h;
-                var->yres = panel->w;
-        } else {
+        switch (var->rotate) {
+        case FB_ROTATE_UR:
+        case FB_ROTATE_UD:
                 var->xres = panel->w;
                 var->yres = panel->h;
+                break;
+        case FB_ROTATE_CW:
+        case FB_ROTATE_CCW:
+                var->xres = panel->h;
+                var->yres = panel->w;
+                break;
+        default:
+                dev_dbg(dev, "Invalid rotation request\n");
+                return -EINVAL;
         }
 
         var->xres_virtual = var->xres;
@@ -534,8 +542,15 @@ static int auok190xfb_set_par(struct fb_info *info)
 {
         struct auok190xfb_par *par = info->par;
 
+        par->rotation = info->var.rotate;
         auok190xfb_set_fix(info);
 
+        /* reinit the controller to honor the rotation */
+        par->init(par);
+
+        /* wait for init to complete */
+        par->board->wait_for_rdy(par);
+
         return 0;
 }
 
@@ -1030,7 +1045,7 @@ int auok190x_common_probe(struct platform_device *pdev,
         panel = &panel_table[board->resolution];
 
         par->resolution = board->resolution;
-        par->rotation = board->rotation;
+        par->rotation = 0;
 
         /* videomemory handling */
 
diff --git a/include/video/auo_k190xfb.h b/include/video/auo_k190xfb.h
index 609efe8c686e..ad7bc51bee9a 100644
--- a/include/video/auo_k190xfb.h
+++ b/include/video/auo_k190xfb.h
@@ -98,7 +98,6 @@ struct auok190x_board {
         int gpio_nbusy;
 
         int resolution;
-        int rotation;
         int quirks;
         int fps;
 };