From: Chen-Yu Tsai <wens@csie.org>
Date: Tue, 10 Oct 2017 11:20:05 +0800
Subject: drm/sun4i: hdmi: Add A31 specific DDC register definitions
Git-commit: c4a9aec3dfe5203363c6c2f9fc62353f4898225e
Patch-mainline: v4.15-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
The DDC block for the HDMI controller is different on the A31.
This patch adds the register definitions.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171010032008.682-9-wens@csie.org
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/sun4i/sun4i_hdmi.h | 31 +++++++++++++++++++++++++++++++
1 file changed, 31 insertions(+)
--- a/drivers/gpu/drm/sun4i/sun4i_hdmi.h
+++ b/drivers/gpu/drm/sun4i/sun4i_hdmi.h
@@ -153,6 +153,37 @@
#define SUN4I_HDMI_DDC_FIFO_SIZE 16
+/* A31 specific */
+#define SUN6I_HDMI_DDC_CTRL_REG 0x500
+#define SUN6I_HDMI_DDC_CTRL_RESET BIT(31)
+#define SUN6I_HDMI_DDC_CTRL_START_CMD BIT(27)
+#define SUN6I_HDMI_DDC_CTRL_SDA_ENABLE BIT(6)
+#define SUN6I_HDMI_DDC_CTRL_SCL_ENABLE BIT(4)
+#define SUN6I_HDMI_DDC_CTRL_ENABLE BIT(0)
+
+#define SUN6I_HDMI_DDC_CMD_REG 0x508
+#define SUN6I_HDMI_DDC_CMD_BYTE_COUNT(count) ((count) << 16)
+/* command types in lower 3 bits are the same as sun4i */
+
+#define SUN6I_HDMI_DDC_ADDR_REG 0x50c
+#define SUN6I_HDMI_DDC_ADDR_SEGMENT(seg) (((seg) & 0xff) << 24)
+#define SUN6I_HDMI_DDC_ADDR_EDDC(addr) (((addr) & 0xff) << 16)
+#define SUN6I_HDMI_DDC_ADDR_OFFSET(off) (((off) & 0xff) << 8)
+#define SUN6I_HDMI_DDC_ADDR_SLAVE(addr) (((addr) & 0xff) << 1)
+
+#define SUN6I_HDMI_DDC_INT_STATUS_REG 0x514
+#define SUN6I_HDMI_DDC_INT_STATUS_TIMEOUT BIT(8)
+/* lower 8 bits are the same as sun4i */
+
+#define SUN6I_HDMI_DDC_FIFO_CTRL_REG 0x518
+#define SUN6I_HDMI_DDC_FIFO_CTRL_CLEAR BIT(15)
+/* lower 9 bits are the same as sun4i */
+
+#define SUN6I_HDMI_DDC_CLK_REG 0x520
+/* DDC CLK bit fields are the same, but the formula is not */
+
+#define SUN6I_HDMI_DDC_FIFO_DATA_REG 0x580
+
enum sun4i_hdmi_pkt_type {
SUN4I_HDMI_PKT_AVI = 2,
SUN4I_HDMI_PKT_END = 15,