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3c7623fb5b
Add HPD interrupt enable functions in drm framework, and also add detect_ctx functions. Because of the debouncing when HPD pulled out, add 200 ms delay in detect. Add link reset process to reset link status when a new connector pulgged in. Signed-off-by: Baihan Li <libaihan@huawei.com> Signed-off-by: Yongbang Shi <shiyongbang@huawei.com> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Link: https://lore.kernel.org/r/20250331074212.3370287-8-shiyongbang@huawei.com Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
64 lines
1.4 KiB
C
64 lines
1.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/* Copyright (c) 2024 Hisilicon Limited. */
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#ifndef DP_KAPI_H
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#define DP_KAPI_H
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#include <linux/types.h>
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#include <linux/delay.h>
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#include <drm/drm_device.h>
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#include <drm/drm_encoder.h>
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#include <drm/drm_connector.h>
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#include <drm/drm_print.h>
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#include <drm/display/drm_dp_helper.h>
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struct hibmc_dp_dev;
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enum hibmc_dp_cbar_pattern {
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CBAR_COLOR_BAR,
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CBAR_WHITE,
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CBAR_RED,
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CBAR_ORANGE,
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CBAR_YELLOW,
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CBAR_GREEN,
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CBAR_CYAN,
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CBAR_BLUE,
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CBAR_PURPLE,
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CBAR_BLACK,
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};
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struct hibmc_dp_color_raw {
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enum hibmc_dp_cbar_pattern pattern;
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u32 r_value;
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u32 g_value;
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u32 b_value;
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};
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struct hibmc_dp_cbar_cfg {
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u8 enable;
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u8 self_timing;
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u8 dynamic_rate; /* 0:static, 1-255(frame):dynamic */
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enum hibmc_dp_cbar_pattern pattern;
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};
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struct hibmc_dp {
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struct hibmc_dp_dev *dp_dev;
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struct drm_device *drm_dev;
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struct drm_encoder encoder;
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struct drm_connector connector;
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void __iomem *mmio;
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struct drm_dp_aux aux;
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struct hibmc_dp_cbar_cfg cfg;
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u32 irq_status;
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};
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int hibmc_dp_hw_init(struct hibmc_dp *dp);
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int hibmc_dp_mode_set(struct hibmc_dp *dp, struct drm_display_mode *mode);
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void hibmc_dp_display_en(struct hibmc_dp *dp, bool enable);
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void hibmc_dp_set_cbar(struct hibmc_dp *dp, const struct hibmc_dp_cbar_cfg *cfg);
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void hibmc_dp_reset_link(struct hibmc_dp *dp);
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void hibmc_dp_hpd_cfg(struct hibmc_dp *dp);
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void hibmc_dp_enable_int(struct hibmc_dp *dp);
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void hibmc_dp_disable_int(struct hibmc_dp *dp);
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#endif
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