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drm/arcpgu: Really delete file
Somehow this got forgotten when I applied the patch in commite2c406ea0b
Author: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Tue Jan 12 09:43:54 2021 +0100 drm/arc: Inline arcpgu_crtc.c Fixes:e2c406ea0b
("drm/arc: Inline arcpgu_crtc.c") Cc: Thomas Zimmermann <tzimmermann@suse.de> Cc: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> Cc: Daniel Vetter <daniel.vetter@intel.com> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Alexey Brodkin <abrodkin@synopsys.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20210226133647.1403642-1-daniel.vetter@ffwll.ch
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// SPDX-License-Identifier: GPL-2.0-only
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/*
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* ARC PGU DRM driver.
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*
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* Copyright (C) 2016 Synopsys, Inc. (www.synopsys.com)
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*/
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#include <drm/drm_atomic.h>
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#include <drm/drm_atomic_helper.h>
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#include <drm/drm_device.h>
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#include <drm/drm_fb_cma_helper.h>
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#include <drm/drm_gem_cma_helper.h>
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#include <drm/drm_plane_helper.h>
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#include <drm/drm_probe_helper.h>
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#include <linux/clk.h>
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#include <linux/platform_data/simplefb.h>
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#include "arcpgu.h"
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#include "arcpgu_regs.h"
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#define ENCODE_PGU_XY(x, y) ((((x) - 1) << 16) | ((y) - 1))
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static const u32 arc_pgu_supported_formats[] = {
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DRM_FORMAT_RGB565,
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DRM_FORMAT_XRGB8888,
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DRM_FORMAT_ARGB8888,
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};
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static void arc_pgu_set_pxl_fmt(struct arcpgu_drm_private *arcpgu)
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{
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const struct drm_framebuffer *fb = arcpgu->pipe.plane.state->fb;
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uint32_t pixel_format = fb->format->format;
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u32 format = DRM_FORMAT_INVALID;
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int i;
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u32 reg_ctrl;
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for (i = 0; i < ARRAY_SIZE(arc_pgu_supported_formats); i++) {
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if (arc_pgu_supported_formats[i] == pixel_format)
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format = arc_pgu_supported_formats[i];
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}
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if (WARN_ON(format == DRM_FORMAT_INVALID))
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return;
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reg_ctrl = arc_pgu_read(arcpgu, ARCPGU_REG_CTRL);
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if (format == DRM_FORMAT_RGB565)
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reg_ctrl &= ~ARCPGU_MODE_XRGB8888;
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else
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reg_ctrl |= ARCPGU_MODE_XRGB8888;
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arc_pgu_write(arcpgu, ARCPGU_REG_CTRL, reg_ctrl);
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}
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static enum drm_mode_status arc_pgu_mode_valid(struct drm_simple_display_pipe *pipe,
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const struct drm_display_mode *mode)
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{
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struct arcpgu_drm_private *arcpgu = pipe_to_arcpgu_priv(pipe);
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long rate, clk_rate = mode->clock * 1000;
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long diff = clk_rate / 200; /* +-0.5% allowed by HDMI spec */
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rate = clk_round_rate(arcpgu->clk, clk_rate);
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if ((max(rate, clk_rate) - min(rate, clk_rate) < diff) && (rate > 0))
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return MODE_OK;
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return MODE_NOCLOCK;
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}
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static void arc_pgu_mode_set(struct arcpgu_drm_private *arcpgu)
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{
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struct drm_display_mode *m = &arcpgu->pipe.crtc.state->adjusted_mode;
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u32 val;
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arc_pgu_write(arcpgu, ARCPGU_REG_FMT,
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ENCODE_PGU_XY(m->crtc_htotal, m->crtc_vtotal));
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arc_pgu_write(arcpgu, ARCPGU_REG_HSYNC,
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ENCODE_PGU_XY(m->crtc_hsync_start - m->crtc_hdisplay,
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m->crtc_hsync_end - m->crtc_hdisplay));
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arc_pgu_write(arcpgu, ARCPGU_REG_VSYNC,
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ENCODE_PGU_XY(m->crtc_vsync_start - m->crtc_vdisplay,
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m->crtc_vsync_end - m->crtc_vdisplay));
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arc_pgu_write(arcpgu, ARCPGU_REG_ACTIVE,
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ENCODE_PGU_XY(m->crtc_hblank_end - m->crtc_hblank_start,
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m->crtc_vblank_end - m->crtc_vblank_start));
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val = arc_pgu_read(arcpgu, ARCPGU_REG_CTRL);
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if (m->flags & DRM_MODE_FLAG_PVSYNC)
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val |= ARCPGU_CTRL_VS_POL_MASK << ARCPGU_CTRL_VS_POL_OFST;
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else
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val &= ~(ARCPGU_CTRL_VS_POL_MASK << ARCPGU_CTRL_VS_POL_OFST);
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if (m->flags & DRM_MODE_FLAG_PHSYNC)
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val |= ARCPGU_CTRL_HS_POL_MASK << ARCPGU_CTRL_HS_POL_OFST;
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else
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val &= ~(ARCPGU_CTRL_HS_POL_MASK << ARCPGU_CTRL_HS_POL_OFST);
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arc_pgu_write(arcpgu, ARCPGU_REG_CTRL, val);
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arc_pgu_write(arcpgu, ARCPGU_REG_STRIDE, 0);
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arc_pgu_write(arcpgu, ARCPGU_REG_START_SET, 1);
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arc_pgu_set_pxl_fmt(arcpgu);
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clk_set_rate(arcpgu->clk, m->crtc_clock * 1000);
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}
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static void arc_pgu_enable(struct drm_simple_display_pipe *pipe,
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struct drm_crtc_state *crtc_state,
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struct drm_plane_state *plane_state)
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{
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struct arcpgu_drm_private *arcpgu = pipe_to_arcpgu_priv(pipe);
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arc_pgu_mode_set(arcpgu);
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clk_prepare_enable(arcpgu->clk);
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arc_pgu_write(arcpgu, ARCPGU_REG_CTRL,
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arc_pgu_read(arcpgu, ARCPGU_REG_CTRL) |
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ARCPGU_CTRL_ENABLE_MASK);
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}
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static void arc_pgu_disable(struct drm_simple_display_pipe *pipe)
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{
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struct arcpgu_drm_private *arcpgu = pipe_to_arcpgu_priv(pipe);
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clk_disable_unprepare(arcpgu->clk);
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arc_pgu_write(arcpgu, ARCPGU_REG_CTRL,
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arc_pgu_read(arcpgu, ARCPGU_REG_CTRL) &
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~ARCPGU_CTRL_ENABLE_MASK);
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}
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static void arc_pgu_update(struct drm_simple_display_pipe *pipe,
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struct drm_plane_state *state)
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{
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struct arcpgu_drm_private *arcpgu;
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struct drm_gem_cma_object *gem;
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if (!pipe->plane.state->fb)
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return;
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arcpgu = pipe_to_arcpgu_priv(pipe);
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gem = drm_fb_cma_get_gem_obj(pipe->plane.state->fb, 0);
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arc_pgu_write(arcpgu, ARCPGU_REG_BUF0_ADDR, gem->paddr);
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}
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static const struct drm_simple_display_pipe_funcs arc_pgu_pipe_funcs = {
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.update = arc_pgu_update,
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.mode_valid = arc_pgu_mode_valid,
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.enable = arc_pgu_enable,
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.disable = arc_pgu_disable,
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};
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int arc_pgu_setup_pipe(struct drm_device *drm)
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{
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struct arcpgu_drm_private *arcpgu = dev_to_arcpgu(drm);
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return drm_simple_display_pipe_init(drm, &arcpgu->pipe, &arc_pgu_pipe_funcs,
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arc_pgu_supported_formats,
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ARRAY_SIZE(arc_pgu_supported_formats),
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NULL, NULL);
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}
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