Commit bcb01191 authored by Thomas Zimmermann's avatar Thomas Zimmermann
Browse files

drm/ast: Move mode-detection helpers to Gen2 source files 



Wide-screen modes are only available on Gen2 and later. Move the
detection helpers to the appropriate source file.

Signed-off-by: default avatarThomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: default avatarJocelyn Falempe <jfalempe@redhat.com>
Link: https://lore.kernel.org/r/20250922083708.45564-3-tzimmermann@suse.de
parent d9a9ea0f

drivers/gpu/drm/ast/ast_2100.c

+31 −0
Original line number Diff line number Diff line
@@ -386,3 +386,34 @@ int ast_2100_post(struct ast_device *ast) 


	return 0;

}



/*

 * Widescreen detection

 */



/* Try to detect WSXGA+ on Gen2+ */

bool __ast_2100_detect_wsxga_p(struct ast_device *ast)

{

	u8 vgacrd0 = ast_get_index_reg(ast, AST_IO_VGACRI, 0xd0);



	if (!(vgacrd0 & AST_IO_VGACRD0_VRAM_INIT_BY_BMC))

		return true;

	if (vgacrd0 & AST_IO_VGACRD0_IKVM_WIDESCREEN)

		return true;



	return false;

}



/* Try to detect WUXGA on Gen2+ */

bool __ast_2100_detect_wuxga(struct ast_device *ast)

{

	u8 vgacrd1;



	if (ast->support_fullhd) {

		vgacrd1 = ast_get_index_reg(ast, AST_IO_VGACRI, 0xd1);

		if (!(vgacrd1 & AST_IO_VGACRD1_SUPPORTS_WUXGA))

			return true;

	}



	return false;

}

drivers/gpu/drm/ast/ast_drv.h

+2 −0
Original line number Diff line number Diff line
@@ -421,6 +421,8 @@ extern const struct ast_vbios_dclk_info ast_2000_dclk_table[]; 


/* ast_2100.c */

int ast_2100_post(struct ast_device *ast);

bool __ast_2100_detect_wsxga_p(struct ast_device *ast);

bool __ast_2100_detect_wuxga(struct ast_device *ast);



/* ast_2300.c */

int ast_2300_post(struct ast_device *ast);

drivers/gpu/drm/ast/ast_main.c

+0 −27
Original line number Diff line number Diff line
@@ -36,33 +36,6 @@ 


#include "ast_drv.h"



/* Try to detect WSXGA+ on Gen2+ */

static bool __ast_2100_detect_wsxga_p(struct ast_device *ast)

{

	u8 vgacrd0 = ast_get_index_reg(ast, AST_IO_VGACRI, 0xd0);



	if (!(vgacrd0 & AST_IO_VGACRD0_VRAM_INIT_BY_BMC))

		return true;

	if (vgacrd0 & AST_IO_VGACRD0_IKVM_WIDESCREEN)

		return true;



	return false;

}



/* Try to detect WUXGA on Gen2+ */

static bool __ast_2100_detect_wuxga(struct ast_device *ast)

{

	u8 vgacrd1;



	if (ast->support_fullhd) {

		vgacrd1 = ast_get_index_reg(ast, AST_IO_VGACRI, 0xd1);

		if (!(vgacrd1 & AST_IO_VGACRD1_SUPPORTS_WUXGA))

			return true;

	}



	return false;

}



static void ast_detect_widescreen(struct ast_device *ast)

{

	ast->support_wsxga_p = false;