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130 lines
4.4 KiB
Diff
130 lines
4.4 KiB
Diff
From 52a7d96a033601a9cee79fe217e895cfb860b872 Mon Sep 17 00:00:00 2001
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From: Jernej Skrabec <jernej.skrabec@gmail.com>
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Date: Sun, 29 Sep 2024 22:04:46 +1300
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Subject: drm: sun4i: de2/de3: refactor mixer initialisation
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Now that the DE variant can be selected by enum, take the oppportunity
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to factor out some common initialisation code to a separate function.
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Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
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Signed-off-by: Ryan Walklin <ryan@testtoast.com>
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Reviewed-by: Andre Przywara <andre.przywara@arm.com>
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---
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drivers/gpu/drm/sun4i/sun8i_mixer.c | 70 ++++++++++++++++-------------
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1 file changed, 38 insertions(+), 32 deletions(-)
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diff --git a/drivers/gpu/drm/sun4i/sun8i_mixer.c b/drivers/gpu/drm/sun4i/sun8i_mixer.c
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index c38ea430a149..0419859a9f89 100644
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--- a/drivers/gpu/drm/sun4i/sun8i_mixer.c
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+++ b/drivers/gpu/drm/sun4i/sun8i_mixer.c
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@@ -503,6 +503,42 @@ static int sun8i_mixer_of_get_id(struct device_node *node)
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return of_ep.id;
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}
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+static void sun8i_mixer_init(struct sun8i_mixer *mixer)
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+{
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+ unsigned int base = sun8i_blender_base(mixer);
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+ int plane_cnt, i;
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+
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+ if (!mixer->hw_preconfigured) {
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+ /* Enable the mixer */
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+ regmap_write(mixer->engine.regs, SUN8I_MIXER_GLOBAL_CTL,
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+ SUN8I_MIXER_GLOBAL_CTL_RT_EN);
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+ }
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+
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+ /* Set background color to black */
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+ regmap_write(mixer->engine.regs, SUN8I_MIXER_BLEND_BKCOLOR(base),
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+ SUN8I_MIXER_BLEND_COLOR_BLACK);
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+
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+ /*
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+ * Set fill color of bottom plane to black. Generally not needed
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+ * except when VI plane is at bottom (zpos = 0) and enabled.
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+ */
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+ regmap_write(mixer->engine.regs, SUN8I_MIXER_BLEND_PIPE_CTL(base),
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+ SUN8I_MIXER_BLEND_PIPE_CTL_FC_EN(0));
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+ regmap_write(mixer->engine.regs, SUN8I_MIXER_BLEND_ATTR_FCOLOR(base, 0),
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+ SUN8I_MIXER_BLEND_COLOR_BLACK);
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+
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+ plane_cnt = mixer->cfg->vi_num + mixer->cfg->ui_num;
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+ for (i = 0; i < plane_cnt; i++)
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+ regmap_write(mixer->engine.regs,
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+ SUN8I_MIXER_BLEND_MODE(base, i),
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+ SUN8I_MIXER_BLEND_MODE_DEF);
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+
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+ if (!mixer->hw_preconfigured) {
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+ regmap_update_bits(mixer->engine.regs, SUN8I_MIXER_BLEND_PIPE_CTL(base),
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+ SUN8I_MIXER_BLEND_PIPE_CTL_EN_MSK, 0);
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+ }
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+}
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+
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static int sun8i_mixer_bind(struct device *dev, struct device *master,
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void *data)
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{
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@@ -511,8 +547,6 @@ static int sun8i_mixer_bind(struct device *dev, struct device *master,
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struct sun4i_drv *drv = drm->dev_private;
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struct sun8i_mixer *mixer;
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void __iomem *regs;
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- unsigned int base;
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- int plane_cnt;
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int i, ret;
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/*
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@@ -625,8 +659,6 @@ static int sun8i_mixer_bind(struct device *dev, struct device *master,
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list_add_tail(&mixer->engine.list, &drv->engine_list);
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- base = sun8i_blender_base(mixer);
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-
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if (!mixer->hw_preconfigured) {
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/* Reset registers and disable unused sub-engines */
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if (mixer->cfg->de_type == sun8i_mixer_de3) {
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@@ -643,7 +675,7 @@ static int sun8i_mixer_bind(struct device *dev, struct device *master,
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regmap_write(mixer->engine.regs, SUN50I_MIXER_FMT_EN, 0);
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regmap_write(mixer->engine.regs, SUN50I_MIXER_CDC0_EN, 0);
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regmap_write(mixer->engine.regs, SUN50I_MIXER_CDC1_EN, 0);
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- } else {
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+ } else if (mixer->cfg->de_type == sun8i_mixer_de2) {
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for (i = 0; i < DE2_MIXER_UNIT_SIZE; i += 4)
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regmap_write(mixer->engine.regs, i, 0);
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@@ -656,35 +688,9 @@ static int sun8i_mixer_bind(struct device *dev, struct device *master,
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regmap_write(mixer->engine.regs, SUN8I_MIXER_DCSC_EN, 0);
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}
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- /* Enable the mixer */
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- regmap_write(mixer->engine.regs, SUN8I_MIXER_GLOBAL_CTL,
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- SUN8I_MIXER_GLOBAL_CTL_RT_EN);
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} /* hw_preconfigured */
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- /* Set background color to black */
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- regmap_write(mixer->engine.regs, SUN8I_MIXER_BLEND_BKCOLOR(base),
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- SUN8I_MIXER_BLEND_COLOR_BLACK);
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-
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- /*
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- * Set fill color of bottom plane to black. Generally not needed
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- * except when VI plane is at bottom (zpos = 0) and enabled.
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- */
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- regmap_write(mixer->engine.regs, SUN8I_MIXER_BLEND_PIPE_CTL(base),
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- SUN8I_MIXER_BLEND_PIPE_CTL_FC_EN(0));
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- regmap_write(mixer->engine.regs, SUN8I_MIXER_BLEND_ATTR_FCOLOR(base, 0),
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- SUN8I_MIXER_BLEND_COLOR_BLACK);
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-
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- plane_cnt = mixer->cfg->vi_num + mixer->cfg->ui_num;
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- for (i = 0; i < plane_cnt; i++)
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- regmap_write(mixer->engine.regs,
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- SUN8I_MIXER_BLEND_MODE(base, i),
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- SUN8I_MIXER_BLEND_MODE_DEF);
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-
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- if (!mixer->hw_preconfigured) {
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- regmap_update_bits(mixer->engine.regs, SUN8I_MIXER_BLEND_PIPE_CTL(base),
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- SUN8I_MIXER_BLEND_PIPE_CTL_EN_MSK, 0);
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- }
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-
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+ sun8i_mixer_init(mixer);
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return 0;
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err_disable_bus_clk:
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--
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2.51.0
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