From 102a0743326a03cd1a1202ceda21e175b7d3575c Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 20 Feb 2024 01:20:52 +0000
Subject: [PATCH] add new system file
---
kernel/drivers/mmc/host/davinci_mmc.c | 34 ++++++++++++----------------------
1 files changed, 12 insertions(+), 22 deletions(-)
diff --git a/kernel/drivers/mmc/host/davinci_mmc.c b/kernel/drivers/mmc/host/davinci_mmc.c
index 775afc85..647928a 100644
--- a/kernel/drivers/mmc/host/davinci_mmc.c
+++ b/kernel/drivers/mmc/host/davinci_mmc.c
@@ -1,23 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* davinci_mmc.c - TI DaVinci MMC/SD/SDIO driver
*
* Copyright (C) 2006 Texas Instruments.
* Original author: Purushotam Kumar
* Copyright (C) 2009 David Brownell
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/module.h>
@@ -313,7 +300,7 @@
* then it's harmless for us to allow it.
*/
cmd_reg |= MMCCMD_BSYEXP;
- /* FALLTHROUGH */
+ fallthrough;
case MMC_RSP_R1: /* 48 bits, CRC */
cmd_reg |= MMCCMD_RSPFMT_R1456;
break;
@@ -1009,7 +996,7 @@
if (qstatus & MMCST0_RSPDNE) {
/* End of command phase */
- end_command = (int) host->cmd;
+ end_command = host->cmd ? 1 : 0;
}
if (end_command)
@@ -1187,13 +1174,13 @@
mmc->caps |= pdata->caps;
/* Register a cd gpio, if there is not one, enable polling */
- ret = mmc_gpiod_request_cd(mmc, "cd", 0, false, 0, NULL);
+ ret = mmc_gpiod_request_cd(mmc, "cd", 0, false, 0);
if (ret == -EPROBE_DEFER)
return ret;
else if (ret)
mmc->caps |= MMC_CAP_NEEDS_POLL;
- ret = mmc_gpiod_request_ro(mmc, "wp", 0, false, 0, NULL);
+ ret = mmc_gpiod_request_ro(mmc, "wp", 0, 0);
if (ret == -EPROBE_DEFER)
return ret;
@@ -1253,9 +1240,8 @@
pdev->id_entry = match->data;
ret = mmc_of_parse(mmc);
if (ret) {
- if (ret != -EPROBE_DEFER)
- dev_err(&pdev->dev,
- "could not parse of data: %d\n", ret);
+ dev_err_probe(&pdev->dev, ret,
+ "could not parse of data\n");
goto parse_fail;
}
} else {
@@ -1389,8 +1375,12 @@
static int davinci_mmcsd_resume(struct device *dev)
{
struct mmc_davinci_host *host = dev_get_drvdata(dev);
+ int ret;
- clk_enable(host->clk);
+ ret = clk_enable(host->clk);
+ if (ret)
+ return ret;
+
mmc_davinci_reset_ctrl(host, 0);
return 0;
--
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