drm/ast: Fixed vram size incorrect issue on POWER
The default value of VGA scratch may incorrect. Should initial h/w before get vram info. Acked-by: Joel Stanley <joel@jms.id.au> Tested-by: Y.C. Chen <yc_chen@aspeedtech.com> Signed-off-by: Y.C. Chen <yc_chen@aspeedtech.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
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@ -518,6 +518,9 @@ int ast_driver_load(struct drm_device *dev, unsigned long flags)
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ast_detect_chip(dev, &need_post);
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if (need_post)
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ast_post_gpu(dev);
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if (ast->chip != AST1180) {
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ret = ast_get_dram_info(dev);
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if (ret)
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@ -528,9 +531,6 @@ int ast_driver_load(struct drm_device *dev, unsigned long flags)
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ast->dram_bus_width, ast->vram_size);
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}
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if (need_post)
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ast_post_gpu(dev);
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ret = ast_mm_init(ast);
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if (ret)
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goto out_free;
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@ -79,7 +79,7 @@ ast_set_def_ext_reg(struct drm_device *dev)
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const u8 *ext_reg_info;
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/* reset scratch */
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for (i = 0x81; i <= 0x8f; i++)
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for (i = 0x81; i <= 0x9f; i++)
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ast_set_index_reg(ast, AST_IO_CRTC_PORT, i, 0x00);
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if (ast->chip == AST2300 || ast->chip == AST2400) {
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