Really not big anymore.
Note that we no longer clamp all errors to ENODEV, highlighted by Sam.
v2: Fixup update function, bug reported by Eugeniy
v3: Delete now unused crtc funcs (0day)
v4: Move encoder removal to right patch (Sam).
Cc: Eugeniy Paltsev <Eugeniy.Paltsev@xxxxxxxxxxxx>
Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxxx>
Cc: Sam Ravnborg <sam@xxxxxxxxxxxx>
Cc: Alexey Brodkin <abrodkin@xxxxxxxxxxxx>
---
drivers/gpu/drm/arc/Makefile | 2 +-
drivers/gpu/drm/arc/arcpgu.h | 1 -
drivers/gpu/drm/arc/arcpgu_crtc.c | 160 ------------------------------
drivers/gpu/drm/arc/arcpgu_drv.c | 141 +++++++++++++++++++++++++-
4 files changed, 140 insertions(+), 164 deletions(-)
delete mode 100644 drivers/gpu/drm/arc/arcpgu_crtc.c
diff --git a/drivers/gpu/drm/arc/Makefile b/drivers/gpu/drm/arc/Makefile
index c7028b7427b3..c686e0287a71 100644
--- a/drivers/gpu/drm/arc/Makefile
+++ b/drivers/gpu/drm/arc/Makefile
@@ -1,3 +1,3 @@
# SPDX-License-Identifier: GPL-2.0-only
-arcpgu-y := arcpgu_crtc.o arcpgu_hdmi.o arcpgu_sim.o arcpgu_drv.o
+arcpgu-y := arcpgu_hdmi.o arcpgu_sim.o arcpgu_drv.o
obj-$(CONFIG_DRM_ARCPGU) += arcpgu.o
diff --git a/drivers/gpu/drm/arc/arcpgu.h b/drivers/gpu/drm/arc/arcpgu.h
index b5c699d14f27..cee2448a07d6 100644
--- a/drivers/gpu/drm/arc/arcpgu.h
+++ b/drivers/gpu/drm/arc/arcpgu.h
@@ -34,7 +34,6 @@ static inline u32 arc_pgu_read(struct arcpgu_drm_private *arcpgu,
return ioread32(arcpgu->regs + reg);
}
-int arc_pgu_setup_pipe(struct drm_device *dev);
int arcpgu_drm_hdmi_init(struct drm_device *drm, struct device_node *np);
int arcpgu_drm_sim_init(struct drm_device *drm, struct device_node *np);
diff --git a/drivers/gpu/drm/arc/arcpgu_crtc.c b/drivers/gpu/drm/arc/arcpgu_crtc.c
deleted file mode 100644
index 30fbb3052bc7..000000000000
--- a/drivers/gpu/drm/arc/arcpgu_crtc.c
+++ /dev/null
@@ -1,160 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * ARC PGU DRM driver.
- *
- * Copyright (C) 2016 Synopsys, Inc. (www.synopsys.com)
- */
-
-#include <drm/drm_atomic_helper.h>
-#include <drm/drm_device.h>
-#include <drm/drm_fb_cma_helper.h>
-#include <drm/drm_gem_cma_helper.h>
-#include <drm/drm_plane_helper.h>
-#include <drm/drm_probe_helper.h>
-#include <linux/clk.h>
-#include <linux/platform_data/simplefb.h>
-
-#include "arcpgu.h"
-#include "arcpgu_regs.h"
-
-#define ENCODE_PGU_XY(x, y) ((((x) - 1) << 16) | ((y) - 1))
-
-static const u32 arc_pgu_supported_formats[] = {
- DRM_FORMAT_RGB565,
- DRM_FORMAT_XRGB8888,
- DRM_FORMAT_ARGB8888,
-};
-
-static void arc_pgu_set_pxl_fmt(struct arcpgu_drm_private *arcpgu)
-{
- const struct drm_framebuffer *fb = arcpgu->pipe.plane.state->fb;
- uint32_t pixel_format = fb->format->format;
- u32 format = DRM_FORMAT_INVALID;
- int i;
- u32 reg_ctrl;
-
- for (i = 0; i < ARRAY_SIZE(arc_pgu_supported_formats); i++) {
- if (arc_pgu_supported_formats[i] == pixel_format)
- format = arc_pgu_supported_formats[i];
- }
-
- if (WARN_ON(format == DRM_FORMAT_INVALID))
- return;
-
- reg_ctrl = arc_pgu_read(arcpgu, ARCPGU_REG_CTRL);
- if (format == DRM_FORMAT_RGB565)
- reg_ctrl &= ~ARCPGU_MODE_XRGB8888;
- else
- reg_ctrl |= ARCPGU_MODE_XRGB8888;
- arc_pgu_write(arcpgu, ARCPGU_REG_CTRL, reg_ctrl);
-}
-
-static enum drm_mode_status arc_pgu_mode_valid(struct drm_simple_display_pipe *pipe,
- const struct drm_display_mode *mode)
-{
- struct arcpgu_drm_private *arcpgu = pipe_to_arcpgu_priv(pipe);
- long rate, clk_rate = mode->clock * 1000;
- long diff = clk_rate / 200; /* +-0.5% allowed by HDMI spec */
-
- rate = clk_round_rate(arcpgu->clk, clk_rate);
- if ((max(rate, clk_rate) - min(rate, clk_rate) < diff) && (rate > 0))
- return MODE_OK;
-
- return MODE_NOCLOCK;
-}
-
-static void arc_pgu_mode_set(struct arcpgu_drm_private *arcpgu)
-{
- struct drm_display_mode *m = &arcpgu->pipe.crtc.state->adjusted_mode;
- u32 val;
-
- arc_pgu_write(arcpgu, ARCPGU_REG_FMT,
- ENCODE_PGU_XY(m->crtc_htotal, m->crtc_vtotal));
-
- arc_pgu_write(arcpgu, ARCPGU_REG_HSYNC,
- ENCODE_PGU_XY(m->crtc_hsync_start - m->crtc_hdisplay,
- m->crtc_hsync_end - m->crtc_hdisplay));
-
- arc_pgu_write(arcpgu, ARCPGU_REG_VSYNC,
- ENCODE_PGU_XY(m->crtc_vsync_start - m->crtc_vdisplay,
- m->crtc_vsync_end - m->crtc_vdisplay));
-
- arc_pgu_write(arcpgu, ARCPGU_REG_ACTIVE,
- ENCODE_PGU_XY(m->crtc_hblank_end - m->crtc_hblank_start,
- m->crtc_vblank_end - m->crtc_vblank_start));
-
- val = arc_pgu_read(arcpgu, ARCPGU_REG_CTRL);
-
- if (m->flags & DRM_MODE_FLAG_PVSYNC)
- val |= ARCPGU_CTRL_VS_POL_MASK << ARCPGU_CTRL_VS_POL_OFST;
- else
- val &= ~(ARCPGU_CTRL_VS_POL_MASK << ARCPGU_CTRL_VS_POL_OFST);
-
- if (m->flags & DRM_MODE_FLAG_PHSYNC)
- val |= ARCPGU_CTRL_HS_POL_MASK << ARCPGU_CTRL_HS_POL_OFST;
- else
- val &= ~(ARCPGU_CTRL_HS_POL_MASK << ARCPGU_CTRL_HS_POL_OFST);
-
- arc_pgu_write(arcpgu, ARCPGU_REG_CTRL, val);
- arc_pgu_write(arcpgu, ARCPGU_REG_STRIDE, 0);
- arc_pgu_write(arcpgu, ARCPGU_REG_START_SET, 1);
-
- arc_pgu_set_pxl_fmt(arcpgu);
-
- clk_set_rate(arcpgu->clk, m->crtc_clock * 1000);
-}
-
-static void arc_pgu_enable(struct drm_simple_display_pipe *pipe,
- struct drm_crtc_state *crtc_state,
- struct drm_plane_state *plane_state)
-{
- struct arcpgu_drm_private *arcpgu = pipe_to_arcpgu_priv(pipe);
-
- arc_pgu_mode_set(arcpgu);
-
- clk_prepare_enable(arcpgu->clk);
- arc_pgu_write(arcpgu, ARCPGU_REG_CTRL,
- arc_pgu_read(arcpgu, ARCPGU_REG_CTRL) |
- ARCPGU_CTRL_ENABLE_MASK);
-}
-
-static void arc_pgu_disable(struct drm_simple_display_pipe *pipe)
-{
- struct arcpgu_drm_private *arcpgu = pipe_to_arcpgu_priv(pipe);
-
- clk_disable_unprepare(arcpgu->clk);
- arc_pgu_write(arcpgu, ARCPGU_REG_CTRL,
- arc_pgu_read(arcpgu, ARCPGU_REG_CTRL) &
- ~ARCPGU_CTRL_ENABLE_MASK);
-}
-
-static void arc_pgu_update(struct drm_simple_display_pipe *pipe,
- struct drm_plane_state *state)
-{
- struct arcpgu_drm_private *arcpgu;
- struct drm_gem_cma_object *gem;
-
- if (!pipe->plane.state->fb)
- return;
-
- arcpgu = pipe_to_arcpgu_priv(pipe);
- gem = drm_fb_cma_get_gem_obj(pipe->plane.state->fb, 0);
- arc_pgu_write(arcpgu, ARCPGU_REG_BUF0_ADDR, gem->paddr);
-}
-
-static const struct drm_simple_display_pipe_funcs arc_pgu_pipe_funcs = {
- .update = arc_pgu_update,
- .mode_valid = arc_pgu_mode_valid,
- .enable = arc_pgu_enable,
- .disable = arc_pgu_disable,
-};
-
-int arc_pgu_setup_pipe(struct drm_device *drm)
-{
- struct arcpgu_drm_private *arcpgu = dev_to_arcpgu(drm);
-
- return drm_simple_display_pipe_init(drm, &arcpgu->pipe, &arc_pgu_pipe_funcs,
- arc_pgu_supported_formats,
- ARRAY_SIZE(arc_pgu_supported_formats),
- NULL, NULL);
-}
diff --git a/drivers/gpu/drm/arc/arcpgu_drv.c b/drivers/gpu/drm/arc/arcpgu_drv.c
index 222ab28efbd0..e49e80b8b089 100644
--- a/drivers/gpu/drm/arc/arcpgu_drv.c
+++ b/drivers/gpu/drm/arc/arcpgu_drv.c
@@ -12,6 +12,7 @@
#include <drm/drm_drv.h>
#include <drm/drm_fb_cma_helper.h>
#include <drm/drm_fb_helper.h>
+#include <drm/drm_fourcc.h>
#include <drm/drm_gem_cma_helper.h>
#include <drm/drm_gem_framebuffer_helper.h>
#include <drm/drm_of.h>
@@ -24,6 +25,138 @@
#include "arcpgu.h"
#include "arcpgu_regs.h"
+#define ENCODE_PGU_XY(x, y) ((((x) - 1) << 16) | ((y) - 1))
+
+static const u32 arc_pgu_supported_formats[] = {
+ DRM_FORMAT_RGB565,
+ DRM_FORMAT_XRGB8888,
+ DRM_FORMAT_ARGB8888,
+};
+
+static void arc_pgu_set_pxl_fmt(struct arcpgu_drm_private *arcpgu)
+{
+ const struct drm_framebuffer *fb = arcpgu->pipe.plane.state->fb;
+ uint32_t pixel_format = fb->format->format;
+ u32 format = DRM_FORMAT_INVALID;
+ int i;
+ u32 reg_ctrl;
+
+ for (i = 0; i < ARRAY_SIZE(arc_pgu_supported_formats); i++) {
+ if (arc_pgu_supported_formats[i] == pixel_format)
+ format = arc_pgu_supported_formats[i];
+ }
+
+ if (WARN_ON(format == DRM_FORMAT_INVALID))
+ return;
+
+ reg_ctrl = arc_pgu_read(arcpgu, ARCPGU_REG_CTRL);
+ if (format == DRM_FORMAT_RGB565)
+ reg_ctrl &= ~ARCPGU_MODE_XRGB8888;
+ else
+ reg_ctrl |= ARCPGU_MODE_XRGB8888;
+ arc_pgu_write(arcpgu, ARCPGU_REG_CTRL, reg_ctrl);
+}
+
+static enum drm_mode_status arc_pgu_mode_valid(struct drm_simple_display_pipe *pipe,
+ const struct drm_display_mode *mode)
+{
+ struct arcpgu_drm_private *arcpgu = pipe_to_arcpgu_priv(pipe);
+ long rate, clk_rate = mode->clock * 1000;
+ long diff = clk_rate / 200; /* +-0.5% allowed by HDMI spec */
+
+ rate = clk_round_rate(arcpgu->clk, clk_rate);
+ if ((max(rate, clk_rate) - min(rate, clk_rate) < diff) && (rate > 0))
+ return MODE_OK;
+
+ return MODE_NOCLOCK;
+}
+
+static void arc_pgu_mode_set(struct arcpgu_drm_private *arcpgu)
+{
+ struct drm_display_mode *m = &arcpgu->pipe.crtc.state->adjusted_mode;
+ u32 val;
+
+ arc_pgu_write(arcpgu, ARCPGU_REG_FMT,
+ ENCODE_PGU_XY(m->crtc_htotal, m->crtc_vtotal));
+
+ arc_pgu_write(arcpgu, ARCPGU_REG_HSYNC,
+ ENCODE_PGU_XY(m->crtc_hsync_start - m->crtc_hdisplay,
+ m->crtc_hsync_end - m->crtc_hdisplay));
+
+ arc_pgu_write(arcpgu, ARCPGU_REG_VSYNC,
+ ENCODE_PGU_XY(m->crtc_vsync_start - m->crtc_vdisplay,
+ m->crtc_vsync_end - m->crtc_vdisplay));
+
+ arc_pgu_write(arcpgu, ARCPGU_REG_ACTIVE,
+ ENCODE_PGU_XY(m->crtc_hblank_end - m->crtc_hblank_start,
+ m->crtc_vblank_end - m->crtc_vblank_start));
+
+ val = arc_pgu_read(arcpgu, ARCPGU_REG_CTRL);
+
+ if (m->flags & DRM_MODE_FLAG_PVSYNC)
+ val |= ARCPGU_CTRL_VS_POL_MASK << ARCPGU_CTRL_VS_POL_OFST;
+ else
+ val &= ~(ARCPGU_CTRL_VS_POL_MASK << ARCPGU_CTRL_VS_POL_OFST);
+
+ if (m->flags & DRM_MODE_FLAG_PHSYNC)
+ val |= ARCPGU_CTRL_HS_POL_MASK << ARCPGU_CTRL_HS_POL_OFST;
+ else
+ val &= ~(ARCPGU_CTRL_HS_POL_MASK << ARCPGU_CTRL_HS_POL_OFST);
+
+ arc_pgu_write(arcpgu, ARCPGU_REG_CTRL, val);
+ arc_pgu_write(arcpgu, ARCPGU_REG_STRIDE, 0);
+ arc_pgu_write(arcpgu, ARCPGU_REG_START_SET, 1);
+
+ arc_pgu_set_pxl_fmt(arcpgu);
+
+ clk_set_rate(arcpgu->clk, m->crtc_clock * 1000);
+}
+
+static void arc_pgu_enable(struct drm_simple_display_pipe *pipe,
+ struct drm_crtc_state *crtc_state,
+ struct drm_plane_state *plane_state)
+{
+ struct arcpgu_drm_private *arcpgu = pipe_to_arcpgu_priv(pipe);
+
+ arc_pgu_mode_set(arcpgu);
+
+ clk_prepare_enable(arcpgu->clk);
+ arc_pgu_write(arcpgu, ARCPGU_REG_CTRL,
+ arc_pgu_read(arcpgu, ARCPGU_REG_CTRL) |
+ ARCPGU_CTRL_ENABLE_MASK);
+}
+
+static void arc_pgu_disable(struct drm_simple_display_pipe *pipe)
+{
+ struct arcpgu_drm_private *arcpgu = pipe_to_arcpgu_priv(pipe);
+
+ clk_disable_unprepare(arcpgu->clk);
+ arc_pgu_write(arcpgu, ARCPGU_REG_CTRL,
+ arc_pgu_read(arcpgu, ARCPGU_REG_CTRL) &
+ ~ARCPGU_CTRL_ENABLE_MASK);
+}
+
+static void arc_pgu_update(struct drm_simple_display_pipe *pipe,
+ struct drm_plane_state *state)
+{
+ struct arcpgu_drm_private *arcpgu;
+ struct drm_gem_cma_object *gem;
+
+ if (!pipe->plane.state->fb)
+ return;
+
+ arcpgu = pipe_to_arcpgu_priv(pipe);
+ gem = drm_fb_cma_get_gem_obj(pipe->plane.state->fb, 0);
+ arc_pgu_write(arcpgu, ARCPGU_REG_BUF0_ADDR, gem->paddr);
+}
+
+static const struct drm_simple_display_pipe_funcs arc_pgu_pipe_funcs = {
+ .update = arc_pgu_update,
+ .mode_valid = arc_pgu_mode_valid,
+ .enable = arc_pgu_enable,
+ .disable = arc_pgu_disable,
+};
+
static const struct drm_mode_config_funcs arcpgu_drm_modecfg_funcs = {
.fb_create = drm_gem_fb_create,
.atomic_check = drm_atomic_helper_check,
@@ -70,8 +203,12 @@ static int arcpgu_load(struct arcpgu_drm_private *arcpgu)
if (dma_set_mask_and_coherent(drm->dev, DMA_BIT_MASK(32)))
return -ENODEV;
- if (arc_pgu_setup_pipe(drm) < 0)
- return -ENODEV;
+ ret = drm_simple_display_pipe_init(drm, &arcpgu->pipe, &arc_pgu_pipe_funcs,
+ arc_pgu_supported_formats,
+ ARRAY_SIZE(arc_pgu_supported_formats),
+ NULL, NULL);
+ if (ret)
+ return ret;
/*
* There is only one output port inside each device. It is linked with
--
2.29.2
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