drm/radeon: add a asic callback to get the xclk
This is required to get the reference clock used
by the gfx engine for things like timestamps. Fixes
support for GL extensions the use timestamps on
certain boards.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/radeon/sid.h b/drivers/gpu/drm/radeon/sid.h
index 07fc455..23fc08f 100644
--- a/drivers/gpu/drm/radeon/sid.h
+++ b/drivers/gpu/drm/radeon/sid.h
@@ -58,6 +58,11 @@
#define VGA_HDP_CONTROL 0x328
#define VGA_MEMORY_DISABLE (1 << 4)
+#define CG_CLKPIN_CNTL 0x660
+# define XTALIN_DIVIDE (1 << 1)
+#define CG_CLKPIN_CNTL_2 0x664
+# define MUX_TCLK_TO_XCLK (1 << 8)
+
#define DMIF_ADDR_CONFIG 0xBD4
#define SRBM_STATUS 0xE50