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path: root/drivers/gpu/drm/tegra/rgb.c
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Diffstat (limited to 'drivers/gpu/drm/tegra/rgb.c')
-rw-r--r--drivers/gpu/drm/tegra/rgb.c228
1 files changed, 0 insertions, 228 deletions
diff --git a/drivers/gpu/drm/tegra/rgb.c b/drivers/gpu/drm/tegra/rgb.c
deleted file mode 100644
index ed4416f20260..000000000000
--- a/drivers/gpu/drm/tegra/rgb.c
+++ /dev/null
@@ -1,228 +0,0 @@
-/*
- * Copyright (C) 2012 Avionic Design GmbH
- * Copyright (C) 2012 NVIDIA CORPORATION. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/clk.h>
-#include <linux/module.h>
-#include <linux/of.h>
-#include <linux/platform_device.h>
-
-#include "drm.h"
-#include "dc.h"
-
-struct tegra_rgb {
- struct tegra_output output;
- struct clk *clk_parent;
- struct clk *clk;
-};
-
-static inline struct tegra_rgb *to_rgb(struct tegra_output *output)
-{
- return container_of(output, struct tegra_rgb, output);
-}
-
-struct reg_entry {
- unsigned long offset;
- unsigned long value;
-};
-
-static const struct reg_entry rgb_enable[] = {
- { DC_COM_PIN_OUTPUT_ENABLE(0), 0x00000000 },
- { DC_COM_PIN_OUTPUT_ENABLE(1), 0x00000000 },
- { DC_COM_PIN_OUTPUT_ENABLE(2), 0x00000000 },
- { DC_COM_PIN_OUTPUT_ENABLE(3), 0x00000000 },
- { DC_COM_PIN_OUTPUT_POLARITY(0), 0x00000000 },
- { DC_COM_PIN_OUTPUT_POLARITY(1), 0x01000000 },
- { DC_COM_PIN_OUTPUT_POLARITY(2), 0x00000000 },
- { DC_COM_PIN_OUTPUT_POLARITY(3), 0x00000000 },
- { DC_COM_PIN_OUTPUT_DATA(0), 0x00000000 },
- { DC_COM_PIN_OUTPUT_DATA(1), 0x00000000 },
- { DC_COM_PIN_OUTPUT_DATA(2), 0x00000000 },
- { DC_COM_PIN_OUTPUT_DATA(3), 0x00000000 },
- { DC_COM_PIN_OUTPUT_SELECT(0), 0x00000000 },
- { DC_COM_PIN_OUTPUT_SELECT(1), 0x00000000 },
- { DC_COM_PIN_OUTPUT_SELECT(2), 0x00000000 },
- { DC_COM_PIN_OUTPUT_SELECT(3), 0x00000000 },
- { DC_COM_PIN_OUTPUT_SELECT(4), 0x00210222 },
- { DC_COM_PIN_OUTPUT_SELECT(5), 0x00002200 },
- { DC_COM_PIN_OUTPUT_SELECT(6), 0x00020000 },
-};
-
-static const struct reg_entry rgb_disable[] = {
- { DC_COM_PIN_OUTPUT_SELECT(6), 0x00000000 },
- { DC_COM_PIN_OUTPUT_SELECT(5), 0x00000000 },
- { DC_COM_PIN_OUTPUT_SELECT(4), 0x00000000 },
- { DC_COM_PIN_OUTPUT_SELECT(3), 0x00000000 },
- { DC_COM_PIN_OUTPUT_SELECT(2), 0x00000000 },
- { DC_COM_PIN_OUTPUT_SELECT(1), 0x00000000 },
- { DC_COM_PIN_OUTPUT_SELECT(0), 0x00000000 },
- { DC_COM_PIN_OUTPUT_DATA(3), 0xaaaaaaaa },
- { DC_COM_PIN_OUTPUT_DATA(2), 0xaaaaaaaa },
- { DC_COM_PIN_OUTPUT_DATA(1), 0xaaaaaaaa },
- { DC_COM_PIN_OUTPUT_DATA(0), 0xaaaaaaaa },
- { DC_COM_PIN_OUTPUT_POLARITY(3), 0x00000000 },
- { DC_COM_PIN_OUTPUT_POLARITY(2), 0x00000000 },
- { DC_COM_PIN_OUTPUT_POLARITY(1), 0x00000000 },
- { DC_COM_PIN_OUTPUT_POLARITY(0), 0x00000000 },
- { DC_COM_PIN_OUTPUT_ENABLE(3), 0x55555555 },
- { DC_COM_PIN_OUTPUT_ENABLE(2), 0x55555555 },
- { DC_COM_PIN_OUTPUT_ENABLE(1), 0x55150005 },
- { DC_COM_PIN_OUTPUT_ENABLE(0), 0x55555555 },
-};
-
-static void tegra_dc_write_regs(struct tegra_dc *dc,
- const struct reg_entry *table,
- unsigned int num)
-{
- unsigned int i;
-
- for (i = 0; i < num; i++)
- tegra_dc_writel(dc, table[i].value, table[i].offset);
-}
-
-static int tegra_output_rgb_enable(struct tegra_output *output)
-{
- struct tegra_dc *dc = to_tegra_dc(output->encoder.crtc);
-
- tegra_dc_write_regs(dc, rgb_enable, ARRAY_SIZE(rgb_enable));
-
- return 0;
-}
-
-static int tegra_output_rgb_disable(struct tegra_output *output)
-{
- struct tegra_dc *dc = to_tegra_dc(output->encoder.crtc);
-
- tegra_dc_write_regs(dc, rgb_disable, ARRAY_SIZE(rgb_disable));
-
- return 0;
-}
-
-static int tegra_output_rgb_setup_clock(struct tegra_output *output,
- struct clk *clk, unsigned long pclk)
-{
- struct tegra_rgb *rgb = to_rgb(output);
-
- return clk_set_parent(clk, rgb->clk_parent);
-}
-
-static int tegra_output_rgb_check_mode(struct tegra_output *output,
- struct drm_display_mode *mode,
- enum drm_mode_status *status)
-{
- /*
- * FIXME: For now, always assume that the mode is okay. There are
- * unresolved issues with clk_round_rate(), which doesn't always
- * reliably report whether a frequency can be set or not.
- */
-
- *status = MODE_OK;
-
- return 0;
-}
-
-static const struct tegra_output_ops rgb_ops = {
- .enable = tegra_output_rgb_enable,
- .disable = tegra_output_rgb_disable,
- .setup_clock = tegra_output_rgb_setup_clock,
- .check_mode = tegra_output_rgb_check_mode,
-};
-
-int tegra_dc_rgb_probe(struct tegra_dc *dc)
-{
- struct device_node *np;
- struct tegra_rgb *rgb;
- int err;
-
- np = of_get_child_by_name(dc->dev->of_node, "rgb");
- if (!np || !of_device_is_available(np))
- return -ENODEV;
-
- rgb = devm_kzalloc(dc->dev, sizeof(*rgb), GFP_KERNEL);
- if (!rgb)
- return -ENOMEM;
-
- rgb->clk = devm_clk_get(dc->dev, NULL);
- if (IS_ERR(rgb->clk)) {
- dev_err(dc->dev, "failed to get clock\n");
- return PTR_ERR(rgb->clk);
- }
-
- rgb->clk_parent = devm_clk_get(dc->dev, "parent");
- if (IS_ERR(rgb->clk_parent)) {
- dev_err(dc->dev, "failed to get parent clock\n");
- return PTR_ERR(rgb->clk_parent);
- }
-
- err = clk_set_parent(rgb->clk, rgb->clk_parent);
- if (err < 0) {
- dev_err(dc->dev, "failed to set parent clock: %d\n", err);
- return err;
- }
-
- rgb->output.dev = dc->dev;
- rgb->output.of_node = np;
-
- err = tegra_output_parse_dt(&rgb->output);
- if (err < 0)
- return err;
-
- dc->rgb = &rgb->output;
-
- return 0;
-}
-
-int tegra_dc_rgb_init(struct drm_device *drm, struct tegra_dc *dc)
-{
- struct tegra_rgb *rgb = to_rgb(dc->rgb);
- int err;
-
- if (!dc->rgb)
- return -ENODEV;
-
- rgb->output.type = TEGRA_OUTPUT_RGB;
- rgb->output.ops = &rgb_ops;
-
- err = tegra_output_init(dc->base.dev, &rgb->output);
- if (err < 0) {
- dev_err(dc->dev, "output setup failed: %d\n", err);
- return err;
- }
-
- /*
- * By default, outputs can be associated with each display controller.
- * RGB outputs are an exception, so we make sure they can be attached
- * to only their parent display controller.
- */
- rgb->output.encoder.possible_crtcs = 1 << dc->pipe;
-
- return 0;
-}
-
-int tegra_dc_rgb_exit(struct tegra_dc *dc)
-{
- if (dc->rgb) {
- int err;
-
- err = tegra_output_disable(dc->rgb);
- if (err < 0) {
- dev_err(dc->dev, "output failed to disable: %d\n", err);
- return err;
- }
-
- err = tegra_output_exit(dc->rgb);
- if (err < 0) {
- dev_err(dc->dev, "output cleanup failed: %d\n", err);
- return err;
- }
-
- dc->rgb = NULL;
- }
-
- return 0;
-}