Commit 3214403c authored by Thomas Zimmermann's avatar Thomas Zimmermann
Browse files

drm/ast: astdp: Add connector state 



Add dedicated connector state for ASTDP connectors. The state will
store values for programming the transmitter chip.

Signed-off-by: default avatarThomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: default avatarJocelyn Falempe <jfalempe@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250204133209.403327-2-tzimmermann@suse.de
parent e4476cd1

drivers/gpu/drm/ast/ast_dp.c

+56 −6
Original line number Diff line number Diff line
@@ -42,6 +42,16 @@ static const struct ast_astdp_mode_index_table_entry ast_astdp_mode_index_table[ 
	{ 0 }

};



struct ast_astdp_connector_state {

	struct drm_connector_state base;

};



static struct ast_astdp_connector_state *

to_ast_astdp_connector_state(const struct drm_connector_state *state)

{

	return container_of(state, struct ast_astdp_connector_state, base);

}



static int __ast_astdp_get_mode_index(unsigned int hdisplay, unsigned int vdisplay)

{

	const struct ast_astdp_mode_index_table_entry *entry = ast_astdp_mode_index_table;
@@ -442,18 +452,58 @@ static const struct drm_connector_helper_funcs ast_astdp_connector_helper_funcs 
	.detect_ctx = ast_astdp_connector_helper_detect_ctx,

};



/*

 * Output

 */

static void ast_astdp_connector_reset(struct drm_connector *connector)

{

	struct ast_astdp_connector_state *astdp_state =

		kzalloc(sizeof(*astdp_state), GFP_KERNEL);



	if (connector->state)

		connector->funcs->atomic_destroy_state(connector, connector->state);



	if (astdp_state)

		__drm_atomic_helper_connector_reset(connector, &astdp_state->base);

	else

		__drm_atomic_helper_connector_reset(connector, NULL);

}



static struct drm_connector_state *

ast_astdp_connector_atomic_duplicate_state(struct drm_connector *connector)

{

	struct ast_astdp_connector_state *new_astdp_state;

	struct drm_device *dev = connector->dev;



	if (drm_WARN_ON(dev, !connector->state))

		return NULL;



	new_astdp_state = kmalloc(sizeof(*new_astdp_state), GFP_KERNEL);

	if (!new_astdp_state)

		return NULL;

	__drm_atomic_helper_connector_duplicate_state(connector, &new_astdp_state->base);



	return &new_astdp_state->base;

}



static void ast_astdp_connector_atomic_destroy_state(struct drm_connector *connector,

						     struct drm_connector_state *state)

{

	struct ast_astdp_connector_state *astdp_state = to_ast_astdp_connector_state(state);



	__drm_atomic_helper_connector_destroy_state(&astdp_state->base);

	kfree(astdp_state);

}



static const struct drm_connector_funcs ast_astdp_connector_funcs = {

	.reset = drm_atomic_helper_connector_reset,

	.reset = ast_astdp_connector_reset,

	.fill_modes = drm_helper_probe_single_connector_modes,

	.destroy = drm_connector_cleanup,

	.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,

	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,

	.atomic_duplicate_state = ast_astdp_connector_atomic_duplicate_state,

	.atomic_destroy_state = ast_astdp_connector_atomic_destroy_state,

};



/*

 * Output

 */



int ast_astdp_output_init(struct ast_device *ast)

{

	struct drm_device *dev = &ast->base;