drm/ast: Remove unused SCU-MPLL and SCU-STRAP values

The ast driver used SCU-MPLL and SCU-STRAP to compute the memory
clock. Remove the now unused values.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://lore.kernel.org/r/20250826065032.344412-5-tzimmermann@suse.de

diff --git a/drivers/gpu/drm/ast/ast_main.c b/drivers/gpu/drm/ast/ast_main.c
index 492cc8461eb0edee952e855ce7acfb3fb9ecf157..41ff880cfdec8d0df55963116419b54aab38cdc0 100644 (file)
--- a/drivers/gpu/drm/ast/ast_main.c
+++ b/drivers/gpu/drm/ast/ast_main.c
@@ -214,7 +214,7 @@ static int ast_get_dram_info(struct ast_device *ast)
 {
        struct drm_device *dev = &ast->base;
        struct device_node *np = dev->dev->of_node;
-       uint32_t mcr_cfg, mcr_scu_mpll, mcr_scu_strap;
+       uint32_t mcr_cfg;
 
        switch (ast->config_mode) {
        case ast_use_dt:
@@ -222,22 +222,13 @@ static int ast_get_dram_info(struct ast_device *ast)
                 * If some properties are missing, use reasonable
                 * defaults for GEN5
                 */
-               if (of_property_read_u32(np, "aspeed,mcr-configuration",
-                                        &mcr_cfg))
+               if (of_property_read_u32(np, "aspeed,mcr-configuration", &mcr_cfg))
                        mcr_cfg = 0x00000577;
-               if (of_property_read_u32(np, "aspeed,mcr-scu-mpll",
-                                        &mcr_scu_mpll))
-                       mcr_scu_mpll = 0x000050C0;
-               if (of_property_read_u32(np, "aspeed,mcr-scu-strap",
-                                        &mcr_scu_strap))
-                       mcr_scu_strap = 0;
                break;
        case ast_use_p2a:
                ast_write32(ast, 0xf004, 0x1e6e0000);
                ast_write32(ast, 0xf000, 0x1);
                mcr_cfg = ast_read32(ast, 0x10004);
-               mcr_scu_mpll = ast_read32(ast, 0x10120);
-               mcr_scu_strap = ast_read32(ast, 0x10170);
                break;
        case ast_use_defaults:
        default: