1 files changed, 105 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_panel_cntl.c b/drivers/gpu/drm/amd/display/dc/dce/dce_panel_cntl.c
new file mode 100644
index 000000000000..d9b0ff7eb2a4
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dc/dce/dce_panel_cntl.c
@@ -0,0 +1,105 @@
+/*
+ * Copyright 2012-15 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "reg_helper.h"
+#include "core_types.h"
+#include "dc_dmub_srv.h"
+#include "panel_cntl.h"
+#include "dce_panel_cntl.h"
+
+#define TO_DCE_PANEL_CNTL(panel_cntl)\
+	container_of(panel_cntl, struct dce_panel_cntl, base)
+
+#define CTX \
+	dce_panel_cntl->base.ctx
+
+#define DC_LOGGER \
+	dce_panel_cntl->base.ctx->logger
+
+#define REG(reg)\
+	dce_panel_cntl->regs->reg
+
+#undef FN
+#define FN(reg_name, field_name) \
+	dce_panel_cntl->shift->field_name, dce_panel_cntl->mask->field_name
+
+void dce_panel_cntl_hw_init(struct panel_cntl *panel_cntl)
+{
+
+}
+
+bool dce_is_panel_backlight_on(struct panel_cntl *panel_cntl)
+{
+	struct dce_panel_cntl *dce_panel_cntl = TO_DCE_PANEL_CNTL(panel_cntl);
+	uint32_t value;
+
+	REG_GET(PWRSEQ_CNTL, BLON, &value);
+
+	return value;
+}
+
+bool dce_is_panel_powered_on(struct panel_cntl *panel_cntl)
+{
+	struct dce_panel_cntl *dce_panel_cntl = TO_DCE_PANEL_CNTL(panel_cntl);
+	uint32_t pwr_seq_state, dig_on, dig_on_ovrd;
+
+	REG_GET(PWRSEQ_STATE, PWRSEQ_TARGET_STATE_R, &pwr_seq_state);
+
+	REG_GET_2(PWRSEQ_CNTL, DIGON, &dig_on, DIGON_OVRD, &dig_on_ovrd);
+
+	return (pwr_seq_state == 1) || (dig_on == 1 && dig_on_ovrd == 1);
+}
+
+static void dce_panel_cntl_destroy(struct panel_cntl **panel_cntl)
+{
+	struct dce_panel_cntl *dce_panel_cntl = TO_DCE_PANEL_CNTL(*panel_cntl);
+
+	kfree(dce_panel_cntl);
+	*panel_cntl = NULL;
+}
+
+static const struct panel_cntl_funcs dce_link_panel_cntl_funcs = {
+	.destroy = dce_panel_cntl_destroy,
+	.hw_init = dce_panel_cntl_hw_init,
+	.is_panel_backlight_on = dce_is_panel_backlight_on,
+	.is_panel_powered_on = dce_is_panel_powered_on,
+
+};
+
+void dce_panel_cntl_construct(
+	struct dce_panel_cntl *dce_panel_cntl,
+	const struct panel_cntl_init_data *init_data,
+	const struct dce_panel_cntl_registers *regs,
+	const struct dce_panel_cntl_shift *shift,
+	const struct dce_panel_cntl_mask *mask)
+{
+	dce_panel_cntl->regs = regs;
+	dce_panel_cntl->shift = shift;
+	dce_panel_cntl->mask = mask;
+
+	dce_panel_cntl->base.funcs = &dce_link_panel_cntl_funcs;
+	dce_panel_cntl->base.ctx = init_data->ctx;
+	dce_panel_cntl->base.inst = init_data->inst;
+}