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/* SPDX-License-Identifier: GPL-2.0-only */
/*
*
* (C) COPYRIGHT 2012-2013 ARM Limited. All rights reserved.
*
* Parts of this file were based on sources as follows:
*
* Copyright (c) 2006-2008 Intel Corporation
* Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
* Copyright (C) 2011 Texas Instruments
*/
#ifndef _PL111_DRM_H_
#define _PL111_DRM_H_
#include <linux/clk-provider.h>
#include <linux/interrupt.h>
#include <drm/drm_bridge.h>
#include <drm/drm_connector.h>
#include <drm/drm_encoder.h>
#include <drm/drm_gem.h>
#include <drm/drm_panel.h>
#include <drm/drm_simple_kms_helper.h>
#define CLCD_IRQ_NEXTBASE_UPDATE BIT(2)
struct drm_minor;
/**
* struct pl111_variant_data - encodes IP differences
* @name: the name of this variant
* @is_pl110: this is the early PL110 variant
* @is_lcdc: this is the ST Microelectronics Nomadik LCDC variant
* @external_bgr: this is the Versatile Pl110 variant with external
* BGR/RGB routing
* @broken_clockdivider: the clock divider is broken and we need to
* use the supplied clock directly
* @broken_vblank: the vblank IRQ is broken on this variant
* @st_bitmux_control: this variant is using the ST Micro bitmux
* extensions to the control register
* @formats: array of supported pixel formats on this variant
* @nformats: the length of the array of supported pixel formats
* @fb_bpp: desired bits per pixel on the default framebuffer
*/
struct pl111_variant_data {
const char *name;
bool is_pl110;
bool is_lcdc;
bool external_bgr;
bool broken_clockdivider;
bool broken_vblank;
bool st_bitmux_control;
const u32 *formats;
unsigned int nformats;
unsigned int fb_bpp;
};
struct pl111_drm_dev_private {
struct drm_device *drm;
struct drm_connector *connector;
struct drm_panel *panel;
struct drm_bridge *bridge;
struct drm_simple_display_pipe pipe;
void *regs;
u32 memory_bw;
u32 ienb;
u32 ctrl;
/* The pixel clock (a reference to our clock divider off of CLCDCLK). */
struct clk *clk;
/* pl111's internal clock divider. */
struct clk_hw clk_div;
/* Lock to sync access to CLCD_TIM2 between the common clock
* subsystem and pl111_display_enable().
*/
spinlock_t tim2_lock;
const struct pl111_variant_data *variant;
void (*variant_display_enable) (struct drm_device *drm, u32 format);
void (*variant_display_disable) (struct drm_device *drm);
bool use_device_memory;
};
int pl111_display_init(struct drm_device *dev);
irqreturn_t pl111_irq(int irq, void *data);
void pl111_debugfs_init(struct drm_minor *minor);
#endif /* _PL111_DRM_H_ */
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