Adding upstream version 4.19.249.upstream/4.19.249

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 77 insertions, 0 deletions

diff --git a/arch/arm/mach-netx/fb.c b/arch/arm/mach-netx/fb.c
new file mode 100644
index 000000000..8814ee5e9
--- /dev/null
+++ b/arch/arm/mach-netx/fb.c
@@ -0,0 +1,77 @@
+/*
+ * arch/arm/mach-netx/fb.c
+ *
+ * Copyright (c) 2005 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <linux/device.h>
+#include <linux/init.h>
+#include <linux/dma-mapping.h>
+#include <linux/amba/bus.h>
+#include <linux/amba/clcd.h>
+#include <linux/err.h>
+#include <linux/gfp.h>
+
+#include <asm/irq.h>
+
+#include <mach/netx-regs.h>
+#include <mach/hardware.h>
+
+static struct clcd_panel *netx_panel;
+
+void netx_clcd_enable(struct clcd_fb *fb)
+{
+}
+
+int netx_clcd_setup(struct clcd_fb *fb)
+{
+	dma_addr_t dma;
+
+	fb->panel = netx_panel;
+
+	fb->fb.screen_base = dma_alloc_wc(&fb->dev->dev, 1024 * 1024, &dma,
+					  GFP_KERNEL);
+	if (!fb->fb.screen_base) {
+		printk(KERN_ERR "CLCD: unable to map framebuffer\n");
+		return -ENOMEM;
+	}
+
+	fb->fb.fix.smem_start	= dma;
+	fb->fb.fix.smem_len	= 1024*1024;
+
+	return 0;
+}
+
+int netx_clcd_mmap(struct clcd_fb *fb, struct vm_area_struct *vma)
+{
+	return dma_mmap_wc(&fb->dev->dev, vma, fb->fb.screen_base,
+			   fb->fb.fix.smem_start, fb->fb.fix.smem_len);
+}
+
+void netx_clcd_remove(struct clcd_fb *fb)
+{
+	dma_free_wc(&fb->dev->dev, fb->fb.fix.smem_len, fb->fb.screen_base,
+		    fb->fb.fix.smem_start);
+}
+
+static AMBA_AHB_DEVICE(fb, "fb", 0, 0x00104000, { NETX_IRQ_LCD }, NULL);
+
+int netx_fb_init(struct clcd_board *board, struct clcd_panel *panel)
+{
+	netx_panel = panel;
+	fb_device.dev.platform_data = board;
+	return amba_device_register(&fb_device, &iomem_resource);
+}