From: Cedric Roux <sed@free.fr>
To: kgene@kernel.org, krzk@kernel.org, linux@armlinux.org.uk,
linux-arm-kernel@lists.infradead.org,
linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Cedric Roux <sed@free.fr>
Subject: [PATCH v3 2/2] ARM: s3c24xx: Correct SD card write protect detection on Mini2440
Date: Fri, 7 Sep 2018 23:54:46 +0200 [thread overview]
Message-ID: <20180907215446.15160-2-sed@free.fr> (raw)
In-Reply-To: <20180907215446.15160-1-sed@free.fr>
The mini2440 computer uses "active high" to signal that the "write protect"
of the inserted MMC is set. The current code uses the opposite, leading to
a wrong detection of write protection. The solution is simply to use
".wprotect_invert = 1" in the description of the MMC.
Signed-off-by: Cedric Roux <sed@free.fr>
---
arch/arm/mach-s3c24xx/mach-mini2440.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/arch/arm/mach-s3c24xx/mach-mini2440.c b/arch/arm/mach-s3c24xx/mach-mini2440.c
index 4a0bf6abba8c..bfce7971d741 100644
--- a/arch/arm/mach-s3c24xx/mach-mini2440.c
+++ b/arch/arm/mach-s3c24xx/mach-mini2440.c
@@ -234,10 +234,11 @@ static struct s3c2410fb_mach_info mini2440_fb_info __initdata = {
/* MMC/SD */
static struct s3c24xx_mci_pdata mini2440_mmc_cfg __initdata = {
- .gpio_detect = S3C2410_GPG(8),
- .gpio_wprotect = S3C2410_GPH(8),
- .set_power = NULL,
- .ocr_avail = MMC_VDD_32_33|MMC_VDD_33_34,
+ .gpio_detect = S3C2410_GPG(8),
+ .gpio_wprotect = S3C2410_GPH(8),
+ .wprotect_invert = 1,
+ .set_power = NULL,
+ .ocr_avail = MMC_VDD_32_33|MMC_VDD_33_34,
};
/* NAND Flash on MINI2440 board */
--
2.18.0
next prev parent reply other threads:[~2018-09-07 21:53 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-07 21:54 [PATCH v3 1/2] ARM: s3c24xx: formatting cleanup in mach-mini2440.c Cedric Roux
2018-09-07 21:54 ` Cedric Roux [this message]
2018-09-10 10:23 ` [PATCH v3 2/2] ARM: s3c24xx: Correct SD card write protect detection on Mini2440 Krzysztof Kozlowski
2018-09-10 16:55 ` Cedric Roux
2018-09-10 16:57 ` Krzysztof Kozlowski
2018-09-10 17:22 ` Krzysztof Kozlowski
2018-09-10 17:06 ` [PATCH v3 1/2] ARM: s3c24xx: formatting cleanup in mach-mini2440.c Krzysztof Kozlowski
2018-09-12 19:21 ` Joe Perches
2018-09-13 20:26 ` Cedric Roux
2018-09-17 8:33 ` Krzysztof Kozlowski
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