diff mbox series

[11/15] drm/arc: Inline arcpgu_crtc.c

Message ID 20210112084358.2771527-11-daniel.vetter@ffwll.ch (mailing list archive)
State New, archived
Headers show
Series [01/15] drm/arc: Switch to devm_drm_dev_alloc | expand

Commit Message

Daniel Vetter Jan. 12, 2021, 8:43 a.m. UTC 
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@synopsys.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Alexey Brodkin <abrodkin@synopsys.com>
---
 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 mbox series

Patch

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