[PATCH v2 14/23] drm: sun4i: de2/de3: refactor mixer initialisation
From: Ryan Walklin <hidden>
Date: 2024-07-03 10:56:43
Also in:
dri-devel, linux-clk, linux-devicetree, linux-sunxi
Subsystem:
drm driver for allwinner de2 and de3 engine, drm drivers, drm drivers and misc gpu patches, drm drivers for allwinner a10, the rest · Maintainers:
Chen-Yu Tsai, David Airlie, Simona Vetter, Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann, Linus Torvalds
Now that the DE variant can be selected by enum, take the oppportunity to factor out some common initialisation code to a separate function. Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com> Signed-off-by: Ryan Walklin <redacted> Reviewed-by: Andre Przywara <andre.przywara@arm.com> -- Changelog v1..v2: - Combine base register allocation and initialisation in sun8i_mixer_init - Whitespace fix --- drivers/gpu/drm/sun4i/sun8i_mixer.c | 66 +++++++++++++++-------------- 1 file changed, 35 insertions(+), 31 deletions(-)
diff --git a/drivers/gpu/drm/sun4i/sun8i_mixer.c b/drivers/gpu/drm/sun4i/sun8i_mixer.c
index 7874b68786eee..e634827e16487 100644
--- a/drivers/gpu/drm/sun4i/sun8i_mixer.c
+++ b/drivers/gpu/drm/sun4i/sun8i_mixer.c@@ -404,6 +404,38 @@ static int sun8i_mixer_of_get_id(struct device_node *node) return of_ep.id; } +static void sun8i_mixer_init(struct sun8i_mixer *mixer) +{ + unsigned int base = sun8i_blender_base(mixer); + int plane_cnt, i; + + /* Enable the mixer */ + regmap_write(mixer->engine.regs, SUN8I_MIXER_GLOBAL_CTL, + SUN8I_MIXER_GLOBAL_CTL_RT_EN); + + /* Set background color to black */ + regmap_write(mixer->engine.regs, SUN8I_MIXER_BLEND_BKCOLOR(base), + SUN8I_MIXER_BLEND_COLOR_BLACK); + + /* + * Set fill color of bottom plane to black. Generally not needed + * except when VI plane is at bottom (zpos = 0) and enabled. + */ + regmap_write(mixer->engine.regs, SUN8I_MIXER_BLEND_PIPE_CTL(base), + SUN8I_MIXER_BLEND_PIPE_CTL_FC_EN(0)); + regmap_write(mixer->engine.regs, SUN8I_MIXER_BLEND_ATTR_FCOLOR(base, 0), + SUN8I_MIXER_BLEND_COLOR_BLACK); + + plane_cnt = mixer->cfg->vi_num + mixer->cfg->ui_num; + for (i = 0; i < plane_cnt; i++) + regmap_write(mixer->engine.regs, + SUN8I_MIXER_BLEND_MODE(base, i), + SUN8I_MIXER_BLEND_MODE_DEF); + + regmap_update_bits(mixer->engine.regs, SUN8I_MIXER_BLEND_PIPE_CTL(base), + SUN8I_MIXER_BLEND_PIPE_CTL_EN_MSK, 0); +} + static int sun8i_mixer_bind(struct device *dev, struct device *master, void *data) {
@@ -412,8 +444,6 @@ static int sun8i_mixer_bind(struct device *dev, struct device *master, struct sun4i_drv *drv = drm->dev_private; struct sun8i_mixer *mixer; void __iomem *regs; - unsigned int base; - int plane_cnt; int i, ret; /*
@@ -517,8 +547,6 @@ static int sun8i_mixer_bind(struct device *dev, struct device *master, list_add_tail(&mixer->engine.list, &drv->engine_list); - base = sun8i_blender_base(mixer); - /* Reset registers and disable unused sub-engines */ if (mixer->cfg->de_type == sun8i_mixer_de3) { for (i = 0; i < DE3_MIXER_UNIT_SIZE; i += 4)
@@ -534,7 +562,7 @@ static int sun8i_mixer_bind(struct device *dev, struct device *master, regmap_write(mixer->engine.regs, SUN50I_MIXER_FMT_EN, 0); regmap_write(mixer->engine.regs, SUN50I_MIXER_CDC0_EN, 0); regmap_write(mixer->engine.regs, SUN50I_MIXER_CDC1_EN, 0); - } else { + } else if (mixer->cfg->de_type == sun8i_mixer_de2) { for (i = 0; i < DE2_MIXER_UNIT_SIZE; i += 4) regmap_write(mixer->engine.regs, i, 0);
@@ -547,32 +575,8 @@ static int sun8i_mixer_bind(struct device *dev, struct device *master, regmap_write(mixer->engine.regs, SUN8I_MIXER_DCSC_EN, 0); } - /* Enable the mixer */ - regmap_write(mixer->engine.regs, SUN8I_MIXER_GLOBAL_CTL, - SUN8I_MIXER_GLOBAL_CTL_RT_EN); - - /* Set background color to black */ - regmap_write(mixer->engine.regs, SUN8I_MIXER_BLEND_BKCOLOR(base), - SUN8I_MIXER_BLEND_COLOR_BLACK); - - /* - * Set fill color of bottom plane to black. Generally not needed - * except when VI plane is at bottom (zpos = 0) and enabled. - */ - regmap_write(mixer->engine.regs, SUN8I_MIXER_BLEND_PIPE_CTL(base), - SUN8I_MIXER_BLEND_PIPE_CTL_FC_EN(0)); - regmap_write(mixer->engine.regs, SUN8I_MIXER_BLEND_ATTR_FCOLOR(base, 0), - SUN8I_MIXER_BLEND_COLOR_BLACK); - - plane_cnt = mixer->cfg->vi_num + mixer->cfg->ui_num; - for (i = 0; i < plane_cnt; i++) - regmap_write(mixer->engine.regs, - SUN8I_MIXER_BLEND_MODE(base, i), - SUN8I_MIXER_BLEND_MODE_DEF); - - regmap_update_bits(mixer->engine.regs, SUN8I_MIXER_BLEND_PIPE_CTL(base), - SUN8I_MIXER_BLEND_PIPE_CTL_EN_MSK, 0); - + sun8i_mixer_init(mixer); + return 0; err_disable_bus_clk:
--
2.45.2