add ax88772C AX88772C_eeprom_tools

hc

2024-05-10 61598093bbdd283a7edc367d900f223070ead8d2

 kernel/drivers/gpu/drm/bridge/adv7511/adv7533.c
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..
@@ -1,14 +1,6 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * Copyright (c) 2016, The Linux Foundation. All rights reserved.
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License version 2 and
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- * only version 2 as published by the Free Software Foundation.
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- *
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- * This program is distributed in the hope that it will be useful,
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- * but WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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- * GNU General Public License for more details.
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  */
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 #include <linux/of_graph.h>
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@@ -108,26 +100,24 @@
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 	regmap_write(adv->regmap_cec, 0x27, 0x0b);
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 }
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-void adv7533_mode_set(struct adv7511 *adv, struct drm_display_mode *mode)
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+enum drm_mode_status adv7533_mode_valid(struct adv7511 *adv,
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+					const struct drm_display_mode *mode)
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 {
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+	unsigned long max_lane_freq;
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 	struct mipi_dsi_device *dsi = adv->dsi;
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-	int lanes, ret;
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+	u8 bpp = mipi_dsi_pixel_format_to_bpp(dsi->format);
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-	if (adv->num_dsi_lanes != 4)
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-		return;
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+	/* Check max clock for either 7533 or 7535 */
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+	if (mode->clock > (adv->type == ADV7533 ? 80000 : 148500))
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+		return MODE_CLOCK_HIGH;
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-	if (mode->clock > 80000)
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-		lanes = 4;
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-	else
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-		lanes = 3;
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+	/* Check max clock for each lane */
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+	max_lane_freq = (adv->type == ADV7533 ? 800000 : 891000);
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-	if (lanes != dsi->lanes) {
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-		mipi_dsi_detach(dsi);
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-		dsi->lanes = lanes;
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-		ret = mipi_dsi_attach(dsi);
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-		if (ret)
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-			dev_err(&dsi->dev, "failed to change host lanes\n");
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-	}
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+	if (mode->clock * bpp > max_lane_freq * adv->num_dsi_lanes)
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+		return MODE_CLOCK_HIGH;
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+
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+	return MODE_OK;
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 }
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 int adv7533_patch_registers(struct adv7511 *adv)