video: Add i.MX23/28 framebuffer driver
changes since v2:
- use v3 and v4 for specifying the ip version instead of i.MX23/28.
This is a better namespace when future versions are added.
- rename mach/fb.h to mach/mxsfb.h
changes since v1:
- Add a LCDC_ prefix to the register names.
- use set/clear registers where appropriate
- protect call to mxsfb_disable_controller() in mxsfb_remove()
with a (host->enabled) as suggested by Lothar Wassmann
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Shawn Guo <shawn.guo@freescale.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: linux-fbdev@vger.kernel.org
diff --git a/arch/arm/mach-mxs/include/mach/mxsfb.h b/arch/arm/mach-mxs/include/mach/mxsfb.h
new file mode 100644
index 0000000..e4d7979
--- /dev/null
+++ b/arch/arm/mach-mxs/include/mach/mxsfb.h
@@ -0,0 +1,49 @@
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301, USA.
+ */
+
+#ifndef __MACH_FB_H
+#define __MACH_FB_H
+
+#include <linux/fb.h>
+
+#define STMLCDIF_8BIT 1 /** pixel data bus to the display is of 8 bit width */
+#define STMLCDIF_16BIT 0 /** pixel data bus to the display is of 16 bit width */
+#define STMLCDIF_18BIT 2 /** pixel data bus to the display is of 18 bit width */
+#define STMLCDIF_24BIT 3 /** pixel data bus to the display is of 24 bit width */
+
+#define FB_SYNC_DATA_ENABLE_HIGH_ACT (1 << 6)
+#define FB_SYNC_DOTCLK_FAILING_ACT (1 << 7) /* failing/negtive edge sampling */
+
+struct mxsfb_platform_data {
+ struct fb_videomode *mode_list;
+ unsigned mode_count;
+
+ unsigned default_bpp;
+
+ unsigned dotclk_delay; /* refer manual HW_LCDIF_VDCTRL4 register */
+ unsigned ld_intf_width; /* refer STMLCDIF_* macros */
+
+ unsigned fb_size; /* Size of the video memory. If zero a
+ * default will be used
+ */
+ unsigned long fb_phys; /* physical address for the video memory. If
+ * zero the framebuffer memory will be dynamically
+ * allocated. If specified,fb_size must also be specified.
+ * fb_phys must be unused by Linux.
+ */
+};
+
+#endif /* __MACH_FB_H */