diff options
| author |   Maxime Ripard <maxime.ripard@free-electrons.com> | 2017-12-21 12:02:33 +0100 |
|---|---|---|
| committer | Maxime Ripard <maxime.ripard@free-electrons.com> | 2018-01-04 20:37:17 +0100 |
| commit | a0c1214e4764047d90803f3b61ace7471696f316 (patch) | |
| tree | 74e2eedf12243554c56f6cca8ca72a050263b1a4 /drivers/gpu/drm/sun4i/sun4i_tcon.h | |
| parent | drm/sun4i: Create minimal multipliers and dividers (diff) | |
| download | linux-dev-a0c1214e4764047d90803f3b61ace7471696f316.tar.xz linux-dev-a0c1214e4764047d90803f3b61ace7471696f316.zip | |
drm/sun4i: Add LVDS support
The TCON supports the LVDS interface to output to a panel or a bridge.
Let's add support for it.
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Link: https://patchwork.freedesktop.org/patch/msgid/7fbb85f33ee1d5009fde4f0d7d236e11ca58b114.1513854122.git-series.maxime.ripard@free-electrons.com
Diffstat (limited to 'drivers/gpu/drm/sun4i/sun4i_tcon.h')
| -rw-r--r-- | drivers/gpu/drm/sun4i/sun4i_tcon.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/gpu/drm/sun4i/sun4i_tcon.h b/drivers/gpu/drm/sun4i/sun4i_tcon.h index bd3ad7684870..b761c7b823c5 100644 --- a/drivers/gpu/drm/sun4i/sun4i_tcon.h +++ b/drivers/gpu/drm/sun4i/sun4i_tcon.h @@ -70,7 +70,21 @@ #define SUN4I_TCON0_TTL2_REG 0x78 #define SUN4I_TCON0_TTL3_REG 0x7c #define SUN4I_TCON0_TTL4_REG 0x80 + #define SUN4I_TCON0_LVDS_IF_REG 0x84 +#define SUN4I_TCON0_LVDS_IF_EN BIT(31) +#define SUN4I_TCON0_LVDS_IF_BITWIDTH_MASK BIT(26) +#define SUN4I_TCON0_LVDS_IF_BITWIDTH_18BITS (1 << 26) +#define SUN4I_TCON0_LVDS_IF_BITWIDTH_24BITS (0 << 26) +#define SUN4I_TCON0_LVDS_IF_CLK_SEL_MASK BIT(20) +#define SUN4I_TCON0_LVDS_IF_CLK_SEL_TCON0 (1 << 20) +#define SUN4I_TCON0_LVDS_IF_CLK_POL_MASK BIT(4) +#define SUN4I_TCON0_LVDS_IF_CLK_POL_NORMAL (1 << 4) +#define SUN4I_TCON0_LVDS_IF_CLK_POL_INV (0 << 4) +#define SUN4I_TCON0_LVDS_IF_DATA_POL_MASK GENMASK(3, 0) +#define SUN4I_TCON0_LVDS_IF_DATA_POL_NORMAL (0xf) +#define SUN4I_TCON0_LVDS_IF_DATA_POL_INV (0) + #define SUN4I_TCON0_IO_POL_REG 0x88 #define SUN4I_TCON0_IO_POL_DCLK_PHASE(phase) ((phase & 3) << 28) #define SUN4I_TCON0_IO_POL_HSYNC_POSITIVE BIT(25) @@ -131,6 +145,16 @@ #define SUN4I_TCON_CEU_RANGE_G_REG 0x144 #define SUN4I_TCON_CEU_RANGE_B_REG 0x148 #define SUN4I_TCON_MUX_CTRL_REG 0x200 + +#define SUN4I_TCON0_LVDS_ANA0_REG 0x220 +#define SUN6I_TCON0_LVDS_ANA0_EN_MB BIT(31) +#define SUN6I_TCON0_LVDS_ANA0_EN_LDO BIT(30) +#define SUN6I_TCON0_LVDS_ANA0_EN_DRVC BIT(24) +#define SUN6I_TCON0_LVDS_ANA0_EN_DRVD(x) (((x) & 0xf) << 20) +#define SUN6I_TCON0_LVDS_ANA0_C(x) (((x) & 3) << 17) +#define SUN6I_TCON0_LVDS_ANA0_V(x) (((x) & 3) << 8) +#define SUN6I_TCON0_LVDS_ANA0_PD(x) (((x) & 3) << 4) + #define SUN4I_TCON1_FILL_CTL_REG 0x300 #define SUN4I_TCON1_FILL_BEG0_REG 0x304 #define SUN4I_TCON1_FILL_END0_REG 0x308 @@ -149,6 +173,7 @@ struct sun4i_tcon; struct sun4i_tcon_quirks { bool has_channel_1; /* a33 does not have channel 1 */ + bool has_lvds_alt; /* Does the LVDS clock have a parent other than the TCON clock? */ bool needs_de_be_mux; /* sun6i needs mux to select backend */ /* callback to handle tcon muxing options */ @@ -167,6 +192,9 @@ struct sun4i_tcon { struct clk *sclk0; struct clk *sclk1; + /* Possible mux for the LVDS clock */ + struct clk *lvds_pll; + /* Pixel clock */ struct clk *dclk; u8 dclk_max_div; @@ -174,6 +202,7 @@ struct sun4i_tcon { /* Reset control */ struct reset_control *lcd_rst; + struct reset_control *lvds_rst; struct drm_panel *panel; |