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| author | Jonathan Liu <net147@gmail.com> | 2017-10-17 20:17:59 +0800 |
|---|---|---|
| committer | Maxime Ripard <maxime.ripard@free-electrons.com> | 2017-10-17 19:49:16 +0200 |
| commit | 4bb206bf4d8cbccaa2c2ee76168381f6c29a9e33 (patch) | |
| tree | 55f8561b450d36db96facac78fef8b9433e11d0a /drivers/gpu/drm/sun4i/sun4i_tcon.c | |
| parent | f55c83d37b85de411db74c6700808d08684522aa (diff) | |
| download | op-kernel-dev-4bb206bf4d8cbccaa2c2ee76168381f6c29a9e33.zip op-kernel-dev-4bb206bf4d8cbccaa2c2ee76168381f6c29a9e33.tar.gz | |
drm/sun4i: tcon: Add support for A10 TCON
The A10 has two TCONs that are similar to the ones found on other SoCs.
Like the A31, TCON0 has a register used to mux the TCON outputs to the
downstream encoders. The bit fields are slightly different.
Signed-off-by: Jonathan Liu <net147@gmail.com>
[wens@csie.org: Reworked for A10 and fixed up commit message]
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171017121807.2994-3-wens@csie.org
Diffstat (limited to 'drivers/gpu/drm/sun4i/sun4i_tcon.c')
| -rw-r--r-- | drivers/gpu/drm/sun4i/sun4i_tcon.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/gpu/drm/sun4i/sun4i_tcon.c b/drivers/gpu/drm/sun4i/sun4i_tcon.c index f69bcdf..7beac80 100644 --- a/drivers/gpu/drm/sun4i/sun4i_tcon.c +++ b/drivers/gpu/drm/sun4i/sun4i_tcon.c @@ -800,6 +800,30 @@ static int sun4i_tcon_remove(struct platform_device *pdev) } /* platform specific TCON muxing callbacks */ +static int sun4i_a10_tcon_set_mux(struct sun4i_tcon *tcon, + const struct drm_encoder *encoder) +{ + struct sun4i_tcon *tcon0 = sun4i_get_tcon0(encoder->dev); + u32 shift; + + if (!tcon0) + return -EINVAL; + + switch (encoder->encoder_type) { + case DRM_MODE_ENCODER_TMDS: + /* HDMI */ + shift = 8; + break; + default: + return -EINVAL; + } + + regmap_update_bits(tcon0->regs, SUN4I_TCON_MUX_CTRL_REG, + 0x3 << shift, tcon->id << shift); + + return 0; +} + static int sun5i_a13_tcon_set_mux(struct sun4i_tcon *tcon, const struct drm_encoder *encoder) { @@ -841,6 +865,11 @@ static int sun6i_tcon_set_mux(struct sun4i_tcon *tcon, return 0; } +static const struct sun4i_tcon_quirks sun4i_a10_quirks = { + .has_channel_1 = true, + .set_mux = sun4i_a10_tcon_set_mux, +}; + static const struct sun4i_tcon_quirks sun5i_a13_quirks = { .has_channel_1 = true, .set_mux = sun5i_a13_tcon_set_mux, @@ -866,6 +895,7 @@ static const struct sun4i_tcon_quirks sun8i_v3s_quirks = { }; static const struct of_device_id sun4i_tcon_of_table[] = { + { .compatible = "allwinner,sun4i-a10-tcon", .data = &sun4i_a10_quirks }, { .compatible = "allwinner,sun5i-a13-tcon", .data = &sun5i_a13_quirks }, { .compatible = "allwinner,sun6i-a31-tcon", .data = &sun6i_a31_quirks }, { .compatible = "allwinner,sun6i-a31s-tcon", .data = &sun6i_a31s_quirks }, |
