diff options
Diffstat (limited to 'drivers/gpu/drm/sun4i/sun4i_tcon.c')
| -rw-r--r-- | drivers/gpu/drm/sun4i/sun4i_tcon.c | 104 |
1 files changed, 72 insertions, 32 deletions
diff --git a/drivers/gpu/drm/sun4i/sun4i_tcon.c b/drivers/gpu/drm/sun4i/sun4i_tcon.c index c81cdce6ed55..624437b27cdc 100644 --- a/drivers/gpu/drm/sun4i/sun4i_tcon.c +++ b/drivers/gpu/drm/sun4i/sun4i_tcon.c @@ -114,46 +114,71 @@ static void sun4i_tcon_channel_set_status(struct sun4i_tcon *tcon, int channel, } } +static void sun4i_tcon_setup_lvds_phy(struct sun4i_tcon *tcon, + const struct drm_encoder *encoder) +{ + regmap_write(tcon->regs, SUN4I_TCON0_LVDS_ANA0_REG, + SUN4I_TCON0_LVDS_ANA0_CK_EN | + SUN4I_TCON0_LVDS_ANA0_REG_V | + SUN4I_TCON0_LVDS_ANA0_REG_C | + SUN4I_TCON0_LVDS_ANA0_EN_MB | + SUN4I_TCON0_LVDS_ANA0_PD | + SUN4I_TCON0_LVDS_ANA0_DCHS); + + udelay(2); /* delay at least 1200 ns */ + regmap_update_bits(tcon->regs, SUN4I_TCON0_LVDS_ANA1_REG, + SUN4I_TCON0_LVDS_ANA1_INIT, + SUN4I_TCON0_LVDS_ANA1_INIT); + udelay(1); /* delay at least 120 ns */ + regmap_update_bits(tcon->regs, SUN4I_TCON0_LVDS_ANA1_REG, + SUN4I_TCON0_LVDS_ANA1_UPDATE, + SUN4I_TCON0_LVDS_ANA1_UPDATE); + regmap_update_bits(tcon->regs, SUN4I_TCON0_LVDS_ANA0_REG, + SUN4I_TCON0_LVDS_ANA0_EN_MB, + SUN4I_TCON0_LVDS_ANA0_EN_MB); +} + +static void sun6i_tcon_setup_lvds_phy(struct sun4i_tcon *tcon, + const struct drm_encoder *encoder) +{ + u8 val; + + regmap_write(tcon->regs, SUN4I_TCON0_LVDS_ANA0_REG, + SUN6I_TCON0_LVDS_ANA0_C(2) | + SUN6I_TCON0_LVDS_ANA0_V(3) | + SUN6I_TCON0_LVDS_ANA0_PD(2) | + SUN6I_TCON0_LVDS_ANA0_EN_LDO); + udelay(2); + + regmap_update_bits(tcon->regs, SUN4I_TCON0_LVDS_ANA0_REG, + SUN6I_TCON0_LVDS_ANA0_EN_MB, + SUN6I_TCON0_LVDS_ANA0_EN_MB); + udelay(2); + + regmap_update_bits(tcon->regs, SUN4I_TCON0_LVDS_ANA0_REG, + SUN6I_TCON0_LVDS_ANA0_EN_DRVC, + SUN6I_TCON0_LVDS_ANA0_EN_DRVC); + + if (sun4i_tcon_get_pixel_depth(encoder) == 18) + val = 7; + else + val = 0xf; + + regmap_write_bits(tcon->regs, SUN4I_TCON0_LVDS_ANA0_REG, + SUN6I_TCON0_LVDS_ANA0_EN_DRVD(0xf), + SUN6I_TCON0_LVDS_ANA0_EN_DRVD(val)); +} + static void sun4i_tcon_lvds_set_status(struct sun4i_tcon *tcon, const struct drm_encoder *encoder, bool enabled) { if (enabled) { - u8 val; - regmap_update_bits(tcon->regs, SUN4I_TCON0_LVDS_IF_REG, SUN4I_TCON0_LVDS_IF_EN, SUN4I_TCON0_LVDS_IF_EN); - - /* - * As their name suggest, these values only apply to the A31 - * and later SoCs. We'll have to rework this when merging - * support for the older SoCs. - */ - regmap_write(tcon->regs, SUN4I_TCON0_LVDS_ANA0_REG, - SUN6I_TCON0_LVDS_ANA0_C(2) | - SUN6I_TCON0_LVDS_ANA0_V(3) | - SUN6I_TCON0_LVDS_ANA0_PD(2) | - SUN6I_TCON0_LVDS_ANA0_EN_LDO); - udelay(2); - - regmap_update_bits(tcon->regs, SUN4I_TCON0_LVDS_ANA0_REG, - SUN6I_TCON0_LVDS_ANA0_EN_MB, - SUN6I_TCON0_LVDS_ANA0_EN_MB); - udelay(2); - - regmap_update_bits(tcon->regs, SUN4I_TCON0_LVDS_ANA0_REG, - SUN6I_TCON0_LVDS_ANA0_EN_DRVC, - SUN6I_TCON0_LVDS_ANA0_EN_DRVC); - - if (sun4i_tcon_get_pixel_depth(encoder) == 18) - val = 7; - else - val = 0xf; - - regmap_write_bits(tcon->regs, SUN4I_TCON0_LVDS_ANA0_REG, - SUN6I_TCON0_LVDS_ANA0_EN_DRVD(0xf), - SUN6I_TCON0_LVDS_ANA0_EN_DRVD(val)); + if (tcon->quirks->setup_lvds_phy) + tcon->quirks->setup_lvds_phy(tcon, encoder); } else { regmap_update_bits(tcon->regs, SUN4I_TCON0_LVDS_IF_REG, SUN4I_TCON0_LVDS_IF_EN, 0); @@ -1453,6 +1478,16 @@ static const struct sun4i_tcon_quirks sun6i_a31s_quirks = { .dclk_min_div = 1, }; +static const struct sun4i_tcon_quirks sun7i_a20_tcon0_quirks = { + .supports_lvds = true, + .has_channel_0 = true, + .has_channel_1 = true, + .dclk_min_div = 4, + /* Same display pipeline structure as A10 */ + .set_mux = sun4i_a10_tcon_set_mux, + .setup_lvds_phy = sun4i_tcon_setup_lvds_phy, +}; + static const struct sun4i_tcon_quirks sun7i_a20_quirks = { .has_channel_0 = true, .has_channel_1 = true, @@ -1465,12 +1500,15 @@ static const struct sun4i_tcon_quirks sun8i_a33_quirks = { .has_channel_0 = true, .has_lvds_alt = true, .dclk_min_div = 1, + .setup_lvds_phy = sun6i_tcon_setup_lvds_phy, + .supports_lvds = true, }; static const struct sun4i_tcon_quirks sun8i_a83t_lcd_quirks = { .supports_lvds = true, .has_channel_0 = true, .dclk_min_div = 1, + .setup_lvds_phy = sun6i_tcon_setup_lvds_phy, }; static const struct sun4i_tcon_quirks sun8i_a83t_tv_quirks = { @@ -1505,6 +1543,8 @@ const struct of_device_id sun4i_tcon_of_table[] = { { .compatible = "allwinner,sun6i-a31-tcon", .data = &sun6i_a31_quirks }, { .compatible = "allwinner,sun6i-a31s-tcon", .data = &sun6i_a31s_quirks }, { .compatible = "allwinner,sun7i-a20-tcon", .data = &sun7i_a20_quirks }, + { .compatible = "allwinner,sun7i-a20-tcon0", .data = &sun7i_a20_tcon0_quirks }, + { .compatible = "allwinner,sun7i-a20-tcon1", .data = &sun7i_a20_quirks }, { .compatible = "allwinner,sun8i-a23-tcon", .data = &sun8i_a33_quirks }, { .compatible = "allwinner,sun8i-a33-tcon", .data = &sun8i_a33_quirks }, { .compatible = "allwinner,sun8i-a83t-tcon-lcd", .data = &sun8i_a83t_lcd_quirks }, |