linux-kernel - [PATCH] staging:rts

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Message-ID: <1318125810-30505-1-git-send-email-wei_wang@realsil.com.cn>
Date:	Sun, 9 Oct 2011 10:03:30 +0800
From:	<wei_wang@...lsil.com.cn>
To:	<gregkh@...e.de>, <devel@...uxdriverproject.org>,
	<linux-kernel@...r.kernel.org>
CC:	wwang <wei_wang@...lsil.com.cn>
Subject: [PATCH] staging:rts_pstor:Fix SDIO issue

From: wwang <wei_wang@...lsil.com.cn>

Fix a bug that SDIO and SD normal card would appear simultaneously if a SDIO card inserted.

Signed-off-by: wwang <wei_wang@...lsil.com.cn>
---
 drivers/staging/rts_pstor/sd.c |   17 ++++++++++++++---
 1 files changed, 14 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/rts_pstor/sd.c b/drivers/staging/rts_pstor/sd.c
index fb62eaf..9ce63f7 100644
--- a/drivers/staging/rts_pstor/sd.c
+++ b/drivers/staging/rts_pstor/sd.c
@@ -3094,6 +3094,7 @@ int reset_sd_card(struct rtsx_chip *chip)
 {
 	struct sd_info *sd_card = &(chip->sd_card);
 	int retval;
+	int reset_pass = 0;
 
 	sd_init_reg_addr(chip);
 
@@ -3134,7 +3135,10 @@ int reset_sd_card(struct rtsx_chip *chip)
 
 	if (chip->sd_ctl & RESET_MMC_FIRST) {
 		retval = reset_mmc(chip);
-		if ((retval != STATUS_SUCCESS) && !sd_check_err_code(chip, SD_NO_CARD)) {
+		if (retval != STATUS_SUCCESS) {
+			if (sd_check_err_code(chip, SD_NO_CARD))
+				TRACE_RET(chip, STATUS_FAIL);
+
 			retval = reset_sd(chip);
 			if (retval != STATUS_SUCCESS) {
 				if (CHECK_PID(chip, 0x5209)) {
@@ -3143,7 +3147,11 @@ int reset_sd_card(struct rtsx_chip *chip)
 						TRACE_RET(chip, STATUS_FAIL);
 					}
 				}
+			} else {
+				reset_pass = 1;
 			}
+		} else {
+			reset_pass = 1;
 		}
 	} else {
 		retval = reset_sd(chip);
@@ -3161,13 +3169,16 @@ int reset_sd_card(struct rtsx_chip *chip)
 
 			if (!chip->sd_io) {
 				retval = reset_mmc(chip);
+				if (retval == STATUS_SUCCESS)
+					reset_pass = 1;
 			}
+		} else {
+			reset_pass = 1;
 		}
 	}
 
-	if (retval != STATUS_SUCCESS) {
+	if (!reset_pass)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	retval = sd_set_clock_divider(chip, SD_CLK_DIVIDE_0);
 	if (retval != STATUS_SUCCESS) {
-- 
1.7.7

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