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

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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
This commit is contained in:
Thomas Zimmermann
2025-08-26 08:49:23 +02:00
parent e91153028d
commit db216056a6
1 changed files with 2 additions and 11 deletions
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13
drivers/gpu/drm/ast/ast_main.c
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@@ -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: