drm/ast: add AST 2400 support.

This is ported from the userspace driver.

Untested on any ast2400 hw so far.

Signed-off-by: Dave Airlie <airlied@redhat.com>

diff --git a/drivers/gpu/drm/ast/ast_drv.h b/drivers/gpu/drm/ast/ast_drv.h
index fab4b17..5617427 100644 (file)
--- a/drivers/gpu/drm/ast/ast_drv.h
+++ b/drivers/gpu/drm/ast/ast_drv.h
@@ -61,6 +61,7 @@ enum ast_chip {
        AST2200,
        AST2150,
        AST2300,
+       AST2400,
        AST1180,
 };
 

diff --git a/drivers/gpu/drm/ast/ast_main.c b/drivers/gpu/drm/ast/ast_main.c
index cd0a791..01ea4b6 100644 (file)
--- a/drivers/gpu/drm/ast/ast_main.c
+++ b/drivers/gpu/drm/ast/ast_main.c
@@ -72,7 +72,10 @@ static int ast_detect_chip(struct drm_device *dev)
                ast->chip = AST1100;
                DRM_INFO("AST 1180 detected\n");
        } else {
-               if (dev->pdev->revision >= 0x20) {
+               if (dev->pdev->revision >= 0x30) {
+                       ast->chip = AST2400;
+                       DRM_INFO("AST 2400 detected\n");
+               } else if (dev->pdev->revision >= 0x20) {
                        ast->chip = AST2300;
                        DRM_INFO("AST 2300 detected\n");
                } else if (dev->pdev->revision >= 0x10) {
@@ -121,13 +124,14 @@ static int ast_detect_chip(struct drm_device *dev)
                        ast->support_wide_screen = true;
                else {
                        ast->support_wide_screen = false;
-                       if (ast->chip == AST2300) {
-                               ast_write32(ast, 0xf004, 0x1e6e0000);
-                               ast_write32(ast, 0xf000, 0x1);
-                               data = ast_read32(ast, 0x1207c);
-                               if ((data & 0x300) == 0) /* ast1300 */
-                                       ast->support_wide_screen = true;
-                       }
+                       ast_write32(ast, 0xf004, 0x1e6e0000);
+                       ast_write32(ast, 0xf000, 0x1);
+                       data = ast_read32(ast, 0x1207c);
+                       data &= 0x300;
+                       if (ast->chip == AST2300 && data == 0x0) /* ast1300 */
+                               ast->support_wide_screen = true;
+                       if (ast->chip == AST2400 && data == 0x100) /* ast1400 */
+                               ast->support_wide_screen = true;
                }
                break;
        }
@@ -157,7 +161,7 @@ static int ast_get_dram_info(struct drm_device *dev)
        else
                ast->dram_bus_width = 32;
 
-       if (ast->chip == AST2300) {
+       if (ast->chip == AST2300 || ast->chip == AST2400) {
                switch (data & 0x03) {
                case 0:
                        ast->dram_type = AST_DRAM_512Mx16;
@@ -344,6 +348,7 @@ int ast_driver_load(struct drm_device *dev, unsigned long flags)
        if (ast->chip == AST2100 ||
            ast->chip == AST2200 ||
            ast->chip == AST2300 ||
+           ast->chip == AST2400 ||
            ast->chip == AST1180) {
                dev->mode_config.max_width = 1920;
                dev->mode_config.max_height = 2048;

diff --git a/drivers/gpu/drm/ast/ast_mode.c b/drivers/gpu/drm/ast/ast_mode.c
index 72bec23..e9a14a1 100644 (file)
--- a/drivers/gpu/drm/ast/ast_mode.c
+++ b/drivers/gpu/drm/ast/ast_mode.c
@@ -398,7 +398,7 @@ static void ast_set_ext_reg(struct drm_crtc *crtc, struct drm_display_mode *mode
        ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xa8, 0xfd, jregA8);
 
        /* Set Threshold */
-       if (ast->chip == AST2300) {
+       if (ast->chip == AST2300 || ast->chip == AST2400) {
                ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa7, 0x78);
                ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa6, 0x60);
        } else if (ast->chip == AST2100 ||
@@ -771,7 +771,7 @@ static int ast_mode_valid(struct drm_connector *connector,
                if ((mode->hdisplay == 1600) && (mode->vdisplay == 900))
                        return MODE_OK;
 
-               if ((ast->chip == AST2100) || (ast->chip == AST2200) || (ast->chip == AST2300) || (ast->chip == AST1180)) {
+               if ((ast->chip == AST2100) || (ast->chip == AST2200) || (ast->chip == AST2300) || (ast->chip == AST2400) || (ast->chip == AST1180)) {
                        if ((mode->hdisplay == 1920) && (mode->vdisplay == 1080))
                                return MODE_OK;
 

diff --git a/drivers/gpu/drm/ast/ast_post.c b/drivers/gpu/drm/ast/ast_post.c
index 977cfb3..4718e76 100644 (file)
--- a/drivers/gpu/drm/ast/ast_post.c
+++ b/drivers/gpu/drm/ast/ast_post.c
@@ -78,7 +78,7 @@ ast_set_def_ext_reg(struct drm_device *dev)
        for (i = 0x81; i <= 0x8f; i++)
                ast_set_index_reg(ast, AST_IO_CRTC_PORT, i, 0x00);
 
-       if (ast->chip == AST2300) {
+       if (ast->chip == AST2300 || ast->chip == AST2400) {
                if (dev->pdev->revision >= 0x20)
                        ext_reg_info = extreginfo_ast2300;
                else
@@ -102,7 +102,7 @@ ast_set_def_ext_reg(struct drm_device *dev)
 
        /* Enable RAMDAC for A1 */
        reg = 0x04;
-       if (ast->chip == AST2300)
+       if (ast->chip == AST2300 || ast->chip == AST2400)
                reg |= 0x20;
        ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb6, 0xff, reg);
 }
@@ -365,7 +365,7 @@ void ast_post_gpu(struct drm_device *dev)
        ast_open_key(ast);
        ast_set_def_ext_reg(dev);
 
-       if (ast->chip == AST2300)
+       if (ast->chip == AST2300 || ast->chip == AST2400)
                ast_init_dram_2300(dev);
        else
                ast_init_dram_reg(dev);