modify sin led gpio

hc

2024-05-13 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e

 kernel/drivers/mmc/host/cb710-mmc.c
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@@ -1,17 +1,16 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  *  cb710/mmc.c
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  *
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  *  Copyright by Michał Mirosław, 2008-2009
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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 as
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- * published by the Free Software Foundation.
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  */
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 #include <linux/kernel.h>
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 #include <linux/module.h>
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 #include <linux/pci.h>
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 #include <linux/delay.h>
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 #include "cb710-mmc.h"
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+
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+#define CB710_MMC_REQ_TIMEOUT_MS	2000
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 static const u8 cb710_clock_divider_log2[8] = {
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 /*	1, 2, 4, 8, 16, 32, 128, 512 */
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@@ -566,30 +565,32 @@
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 	cb710_mmc_select_clock_divider(mmc, ios->clock);
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-	if (ios->power_mode != reader->last_power_mode)
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-	switch (ios->power_mode) {
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-	case MMC_POWER_ON:
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-		err = cb710_mmc_powerup(slot);
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-		if (err) {
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-			dev_warn(cb710_slot_dev(slot),
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-				"powerup failed (%d)- retrying\n", err);
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-			cb710_mmc_powerdown(slot);
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-			udelay(1);
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+	if (ios->power_mode != reader->last_power_mode) {
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+		switch (ios->power_mode) {
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+		case MMC_POWER_ON:
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 			err = cb710_mmc_powerup(slot);
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-			if (err)
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+			if (err) {
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 				dev_warn(cb710_slot_dev(slot),
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-					"powerup retry failed (%d) - expect errors\n",
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+					"powerup failed (%d)- retrying\n", err);
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+				cb710_mmc_powerdown(slot);
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+				udelay(1);
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+				err = cb710_mmc_powerup(slot);
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+				if (err)
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+					dev_warn(cb710_slot_dev(slot),
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+						"powerup retry failed (%d) - expect errors\n",
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 					err);
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+			}
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+			reader->last_power_mode = MMC_POWER_ON;
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+			break;
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+		case MMC_POWER_OFF:
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+			cb710_mmc_powerdown(slot);
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+			reader->last_power_mode = MMC_POWER_OFF;
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+			break;
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+		case MMC_POWER_UP:
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+		default:
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+			/* ignore */
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+			break;
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 		}
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-		reader->last_power_mode = MMC_POWER_ON;
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-		break;
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-	case MMC_POWER_OFF:
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-		cb710_mmc_powerdown(slot);
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-		reader->last_power_mode = MMC_POWER_OFF;
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-		break;
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-	case MMC_POWER_UP:
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-	default:
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-		/* ignore */;
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 	}
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 	cb710_mmc_enable_4bit_data(slot, ios->bus_width != MMC_BUS_WIDTH_1);
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@@ -708,6 +709,12 @@
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 	mmc->f_min = val >> cb710_clock_divider_log2[CB710_MAX_DIVIDER_IDX];
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 	mmc->ocr_avail = MMC_VDD_32_33|MMC_VDD_33_34;
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 	mmc->caps = MMC_CAP_4_BIT_DATA;
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+	/*
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+	 * In cb710_wait_for_event() we use a fixed timeout of ~2s, hence let's
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+	 * inform the core about it. A future improvement should instead make
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+	 * use of the cmd->busy_timeout.
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+	 */
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+	mmc->max_busy_timeout = CB710_MMC_REQ_TIMEOUT_MS;
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 	reader = mmc_priv(mmc);
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