1 files changed, 100 insertions, 0 deletions
diff --git a/drivers/gpu/drm/ast/ast_2400.c b/drivers/gpu/drm/ast/ast_2400.c
new file mode 100644
index 000000000000..2e6befd24f91
--- /dev/null
+++ b/drivers/gpu/drm/ast/ast_2400.c
@@ -0,0 +1,100 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ */
+/*
+ * Authors: Dave Airlie <airlied@redhat.com>
+ */
+
+#include <linux/pci.h>
+
+#include <drm/drm_drv.h>
+#include <drm/drm_print.h>
+
+#include "ast_drv.h"
+
+static void ast_2400_detect_widescreen(struct ast_device *ast)
+{
+	if (__ast_2100_detect_wsxga_p(ast) || ast->chip == AST1400) {
+		ast->support_wsxga_p = true;
+		ast->support_fullhd = true;
+	}
+	if (__ast_2100_detect_wuxga(ast))
+		ast->support_wuxga = true;
+}
+
+static const struct ast_device_quirks ast_2400_device_quirks = {
+	.crtc_mem_req_threshold_low = 96,
+	.crtc_mem_req_threshold_high = 120,
+};
+
+struct drm_device *ast_2400_device_create(struct pci_dev *pdev,
+					  const struct drm_driver *drv,
+					  enum ast_chip chip,
+					  enum ast_config_mode config_mode,
+					  void __iomem *regs,
+					  void __iomem *ioregs,
+					  bool need_post)
+{
+	struct drm_device *dev;
+	struct ast_device *ast;
+	int ret;
+
+	ast = devm_drm_dev_alloc(&pdev->dev, drv, struct ast_device, base);
+	if (IS_ERR(ast))
+		return ERR_CAST(ast);
+	dev = &ast->base;
+
+	ast_device_init(ast, chip, config_mode, regs, ioregs, &ast_2400_device_quirks);
+
+	ast->dclk_table = ast_2000_dclk_table;
+
+	ast_2300_detect_tx_chip(ast);
+
+	if (need_post) {
+		ret = ast_post_gpu(ast);
+		if (ret)
+			return ERR_PTR(ret);
+	}
+
+	ret = ast_mm_init(ast);
+	if (ret)
+		return ERR_PTR(ret);
+
+	/* map reserved buffer */
+	ast->dp501_fw_buf = NULL;
+	if (ast->vram_size < pci_resource_len(pdev, 0)) {
+		ast->dp501_fw_buf = pci_iomap_range(pdev, 0, ast->vram_size, 0);
+		if (!ast->dp501_fw_buf)
+			drm_info(dev, "failed to map reserved buffer!\n");
+	}
+
+	ast_2400_detect_widescreen(ast);
+
+	ret = ast_mode_config_init(ast);
+	if (ret)
+		return ERR_PTR(ret);
+
+	return dev;
+}