drm/exynos/mic: use mode info stored in CRTC to detect i80 mode

#include <linux/component.h>

#include <linux/pm_runtime.h>

#include <drm/drmP.h>

#include <drm/drm_encoder.h>

#include <linux/mfd/syscon.h>

#include <linux/regmap.h>

#include "exynos_drm_drv.h"

/* Sysreg registers for MIC */

#define DSD_CFG_MUX	0x1004

#define MIC0_RGB_MUX	(1 << 0)

#define MIC_BS_SIZE_2D(x)	((x) & 0x3fff)

enum {

	ENDPOINT_DECON_NODE,

	ENDPOINT_DSI_NODE,

	NUM_ENDPOINTS

};

static char *clk_names[] = { "pclk_mic0", "sclk_rgb_vclk_to_mic0" };

#define NUM_CLKS		ARRAY_SIZE(clk_names)

static DEFINE_MUTEX(mic_mutex);

	writel(reg, mic->reg + MIC_OP);

}

static int parse_dt(struct exynos_mic *mic)

{

	int ret = 0, i, j;

	struct device_node *remote_node;

	struct device_node *nodes[3];

	/*

	 * The order of endpoints does matter.

	 * The first node must be for decon and the second one must be for dsi.

	 */

	for (i = 0, j = 0; i < NUM_ENDPOINTS; i++) {

		remote_node = of_graph_get_remote_node(mic->dev->of_node, i, 0);

		if (!remote_node) {

			ret = -EPIPE;

			goto exit;

		}

		nodes[j++] = remote_node;

		if (i == ENDPOINT_DECON_NODE &&

			of_get_child_by_name(remote_node, "i80-if-timings"))

			mic->i80_mode = 1;

	}

exit:

	while (--j > -1)

		of_node_put(nodes[j]);

	return ret;

}

static void mic_disable(struct drm_bridge *bridge) { }

static void mic_post_disable(struct drm_bridge *bridge)

	mutex_lock(&mic_mutex);

	drm_display_mode_to_videomode(mode, &mic->vm);

	mic->i80_mode = to_exynos_crtc(bridge->encoder->crtc)->i80_mode;

	mutex_unlock(&mic_mutex);

}

	mic->dev = dev;

	ret = parse_dt(mic);

	if (ret)

		goto err;

	ret = of_address_to_resource(dev->of_node, 0, &res);

	if (ret) {

		DRM_ERROR("mic: Failed to get mem region for MIC\n");