This adds the appropriate device-tree compatible and quirk data for hooking frontend support for the A20. It supports the FIR coefficients ready bit but not the access control bit. It also takes different phase values than the A33 for these coefficients.
The compatible is already used in the A20 device-tree and already documented in the device-tree bindings.
Signed-off-by: Paul Kocialkowski paul.kocialkowski@bootlin.com Acked-by: Maxime Ripard maxime.ripard@bootlin.com --- drivers/gpu/drm/sun4i/sun4i_frontend.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+)
diff --git a/drivers/gpu/drm/sun4i/sun4i_frontend.c b/drivers/gpu/drm/sun4i/sun4i_frontend.c index 4a215d5202e2..a1a4108f226e 100644 --- a/drivers/gpu/drm/sun4i/sun4i_frontend.c +++ b/drivers/gpu/drm/sun4i/sun4i_frontend.c @@ -682,6 +682,20 @@ static const struct dev_pm_ops sun4i_frontend_pm_ops = { .runtime_suspend = sun4i_frontend_runtime_suspend, };
+static const struct sun4i_frontend_data sun7i_a20_frontend = { + .ch_phase = { + { + .horzphase = 0, + .vertphase = { 0, 0 }, + }, + { + .horzphase = 0xfc000, + .vertphase = { 0xfc000, 0xfc000 }, + }, + }, + .has_coef_rdy = true, +}; + static const struct sun4i_frontend_data sun8i_a33_frontend = { .ch_phase = { { @@ -697,6 +711,10 @@ static const struct sun4i_frontend_data sun8i_a33_frontend = { };
const struct of_device_id sun4i_frontend_of_table[] = { + { + .compatible = "allwinner,sun7i-a20-display-frontend", + .data = &sun7i_a20_frontend + }, { .compatible = "allwinner,sun8i-a33-display-frontend", .data = &sun8i_a33_frontend