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path: root/drivers/gpu/drm/ast/ast_dp501.c
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Diffstat (limited to 'drivers/gpu/drm/ast/ast_dp501.c')
-rw-r--r--drivers/gpu/drm/ast/ast_dp501.c58
1 files changed, 0 insertions, 58 deletions
diff --git a/drivers/gpu/drm/ast/ast_dp501.c b/drivers/gpu/drm/ast/ast_dp501.c
index cd93c44f2662..204c926a18ea 100644
--- a/drivers/gpu/drm/ast/ast_dp501.c
+++ b/drivers/gpu/drm/ast/ast_dp501.c
@@ -272,64 +272,6 @@ static bool ast_launch_m68k(struct drm_device *dev)
return true;
}
-u8 ast_get_dp501_max_clk(struct drm_device *dev)
-{
- struct ast_private *ast = to_ast_private(dev);
- u32 boot_address, offset, data;
- u8 linkcap[4], linkrate, linklanes, maxclk = 0xff;
- u32 *plinkcap;
-
- if (ast->config_mode == ast_use_p2a) {
- boot_address = get_fw_base(ast);
-
- /* validate FW version */
- offset = AST_DP501_GBL_VERSION;
- data = ast_mindwm(ast, boot_address + offset);
- if ((data & AST_DP501_FW_VERSION_MASK) != AST_DP501_FW_VERSION_1) /* version: 1x */
- return maxclk;
-
- /* Read Link Capability */
- offset = AST_DP501_LINKRATE;
- plinkcap = (u32 *)linkcap;
- *plinkcap = ast_mindwm(ast, boot_address + offset);
- if (linkcap[2] == 0) {
- linkrate = linkcap[0];
- linklanes = linkcap[1];
- data = (linkrate == 0x0a) ? (90 * linklanes) : (54 * linklanes);
- if (data > 0xff)
- data = 0xff;
- maxclk = (u8)data;
- }
- } else {
- if (!ast->dp501_fw_buf)
- return AST_DP501_DEFAULT_DCLK; /* 1024x768 as default */
-
- /* dummy read */
- offset = 0x0000;
- data = readl(ast->dp501_fw_buf + offset);
-
- /* validate FW version */
- offset = AST_DP501_GBL_VERSION;
- data = readl(ast->dp501_fw_buf + offset);
- if ((data & AST_DP501_FW_VERSION_MASK) != AST_DP501_FW_VERSION_1) /* version: 1x */
- return maxclk;
-
- /* Read Link Capability */
- offset = AST_DP501_LINKRATE;
- plinkcap = (u32 *)linkcap;
- *plinkcap = readl(ast->dp501_fw_buf + offset);
- if (linkcap[2] == 0) {
- linkrate = linkcap[0];
- linklanes = linkcap[1];
- data = (linkrate == 0x0a) ? (90 * linklanes) : (54 * linklanes);
- if (data > 0xff)
- data = 0xff;
- maxclk = (u8)data;
- }
- }
- return maxclk;
-}
-
bool ast_dp501_read_edid(struct drm_device *dev, u8 *ediddata)
{
struct ast_private *ast = to_ast_private(dev);