This patch adds a new file for lspcon with
some basic stuff like:
- Some read/wrire addresses for lspcon device
- Basic read/write functions, using i2c over aux channel
- Utility functions to get lspcon/encoder/connector
Signed-off-by: Shashank Sharma <shashank.sharma@xxxxxxxxx>
Signed-off-by: Akashdeep Sharma <akashdeep.sharma@xxxxxxxxx>
---
drivers/gpu/drm/i915/Makefile | 3 +-
drivers/gpu/drm/i915/intel_lspcon.c | 56 +++++++++++++++++++++++++++++++++++++
2 files changed, 58 insertions(+), 1 deletion(-)
create mode 100644 drivers/gpu/drm/i915/intel_lspcon.c
diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
index 5558a03..00a531a 100644
--- a/drivers/gpu/drm/i915/Makefile
+++ b/drivers/gpu/drm/i915/Makefile
@@ -90,7 +90,8 @@ i915-y += dvo_ch7017.o \
intel_lvds.o \
intel_panel.o \
intel_sdvo.o \
- intel_tv.o
+ intel_tv.o \
+ intel_lspcon.o
# virtual gpu code
i915-y += i915_vgpu.o
diff --git a/drivers/gpu/drm/i915/intel_lspcon.c b/drivers/gpu/drm/i915/intel_lspcon.c
new file mode 100644
index 0000000..5a1993b
--- /dev/null
+++ b/drivers/gpu/drm/i915/intel_lspcon.c
@@ -0,0 +1,56 @@
+/*
+ * Copyright © 2016 Intel Corporation
+ *
+ * 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 (including the next
+ * paragraph) 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 AUTHORS OR COPYRIGHT HOLDERS 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:
+ * Shashank Sharma <shashank.sharma@xxxxxxxxx>
+ * Akashdeep Sharma <akashdeep.sharma@xxxxxxxxx>
+ *
+ */
+#include <drm/drm_edid.h>
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_dp_dual_mode_helper.h>
+#include "intel_drv.h"
+
+#define LSPCON_I2C_ADDRESS 0x80
+#define LSPCON_MODE_CHANGE_OFFSET 0x40
+#define LSPCON_MODE_CHECK_OFFSET 0x41
+#define LSPCON_ADAPTER_SIGN_OFFSET 0x00
+#define LSPCON_IDENTIFIER_OFFSET 0x10
+#define LSPCON_IDENTIFIER_LENGTH 0x10
+#define LSPCON_MODE_MASK 0x1
+
+struct intel_digital_port *lspcon_to_dig_port(struct intel_lspcon *lspcon)
+{
+ return container_of(lspcon, struct intel_digital_port, lspcon);
+}
+
+struct intel_hdmi *lspcon_to_hdmi(struct intel_lspcon *lspcon)
+{
+ return &lspcon_to_dig_port(lspcon)->hdmi;
+}
+
+struct intel_lspcon *enc_to_lspcon(struct drm_encoder *encoder)
+{
+ struct intel_digital_port *intel_dig_port =
+ container_of(encoder, struct intel_digital_port, base.base);
+ return &intel_dig_port->lspcon;
+}
--
1.9.1
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