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authorKevin Brace <kevinbrace@gmx.com>2017-07-06 20:51:58 -0500
committerKevin Brace <kevinbrace@gmx.com>2017-07-06 20:51:58 -0500
commit77676ec7e0cfc0cef088f401ae0873babeb9d177 (patch)
tree04d99714c88f1aff1666a1c45f881b3fd7ffec27
parentde23a40d47a06c2f7eb8ea6c02e2417c03fab668 (diff)
Added via_fp_set_primary_soft_back_light
This is an inline function. Signed-off-by: Kevin Brace <kevinbrace@gmx.com>
-rw-r--r--drivers/gpu/drm/via/crtc_hw.h16
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/gpu/drm/via/crtc_hw.h b/drivers/gpu/drm/via/crtc_hw.h
index e4e780fed3e2..35b378be6ccf 100644
--- a/drivers/gpu/drm/via/crtc_hw.h
+++ b/drivers/gpu/drm/via/crtc_hw.h
@@ -324,6 +324,22 @@ via_fp_set_primary_power_seq_type(void __iomem *regs, bool ctrl_type)
}
/*
+ * Sets KM400 or later chipset's FP primary software controlled
+ * back light.
+ */
+static inline void
+via_fp_set_primary_soft_back_light(void __iomem *regs, bool soft_on)
+{
+ /* 3X5.91[1] - FP Primary Software Back Light On
+ * 0: Off
+ * 1: On */
+ svga_wcrt_mask(regs, 0x91,
+ soft_on ? BIT(1) : 0x00, BIT(1));
+ DRM_DEBUG_KMS("FP Primary Software Controlled Back Light: "
+ "%s\n", soft_on ? "On" : "Off");
+}
+
+/*
* Sets FPDP (Flat Panel Display Port) Low I/O pad state.
*/
static inline void