BYTE_SWAP_GBR = 3,
BYTE_SWAP_BRG = 4,
BYTE_SWAP_BGR = 5,
+ BYTE_SWAP_MAX = 6,
};
/* Page 0, Register 0x19 */
int hsynclen = mode->hsync_end - mode->hsync_start;
int vbporch = mode->vsync_start - mode->vdisplay;
int vsynclen = mode->vsync_end - mode->vsync_start;
+ u8 byte_swap;
+ int ret;
/*
* Page 4
regmap_write(priv->regmap, 0x15, vbporch);
regmap_write(priv->regmap, 0x16, vsynclen);
- /* Input color swap. */
- regmap_update_bits(priv->regmap, 0x18, SWAP, BYTE_SWAP_BGR);
+ /* Input color swap. Byte order is optional and will default to
+ * BYTE_SWAP_BGR to preserve backwards compatibility with existing
+ * driver.
+ */
+ ret = of_property_read_u8(priv->bridge.of_node, "chrontel,byteswap",
+ &byte_swap);
+ if (!ret && byte_swap < BYTE_SWAP_MAX)
+ regmap_update_bits(priv->regmap, 0x18, SWAP, byte_swap);
+ else
+ regmap_update_bits(priv->regmap, 0x18, SWAP, BYTE_SWAP_BGR);
/* Input clock and sync polarity. */
regmap_update_bits(priv->regmap, 0x19, 0x1, mode->clock >> 16);