Following LVDS features might be supported (according to BSP), but are
unimplemented due to lack of proper hardware:
- dual channel LVDS
- choosing between NS or JEIDA mode
- cross-polarity support
Add at least some comments about them.
Signed-off-by: Priit Laes <pl...@plaes.org>
---
drivers/video/sunxi_display.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/drivers/video/sunxi_display.c b/drivers/video/sunxi_display.c
index 6f8ee01..bcd33dd 100644
--- a/drivers/video/sunxi_display.c
+++ b/drivers/video/sunxi_display.c
@@ -829,8 +829,20 @@ static void sunxi_lcdc_tcon0_mode_set(const struct
ctfb_res_modes *mode,
#endif
#ifdef CONFIG_VIDEO_LCD_IF_LVDS
val = (sunxi_display.depth == 18) ? 1 : 0;
+ /*
+ * TODO: LVDS features (from BSP, no hardware):
+ * BIT(30) - LVDS single/dual channel (single - 0, dual - 1)
+ * BIT(29) - 0
+ * BIT(28) - 0
+ * BIT(27) - LVDS mode (NS - 0, JEIDA - 1)
+ * BIT(23) - 0
+ */
writel(SUNXI_LCDC_TCON0_LVDS_INTF_BITWIDTH(val) |
SUNXI_LCDC_TCON0_LVDS_CLK_SEL_TCON0, &lcdc->tcon0_lvds_intf);
+ /*
+ * TODO: LVDS cross-polarity support (from BSP, no hardware):
+ * set bits (0x1f << 21) | (0x1f << 5) for lvds_ana1 register
+ */
#endif
if (sunxi_display.depth == 18 || sunxi_display.depth == 16) {
--
2.9.3
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