On Tue 09 Apr 2013 06:34:10 PM CEST, Marc Kleine-Budde wrote:
On 04/09/2013 05:21 PM, Hector Palacios wrote:
On 04/09/2013 05:14 PM, Hector Palacios wrote:
@@ -95,7 +97,8 @@ static int mxs_mmc_get_cd(struct mmc_host *mmc)
struct mxs_mmc_host *host = mmc_priv(mmc);
struct mxs_ssp *ssp = &host->ssp;
- return !(readl(ssp->base + HW_SSP_STATUS(ssp)) &
+ return host->non_removable || host->broken_cd ||
+ !(readl(ssp->base + HW_SSP_STATUS(ssp)) &
BM_SSP_STATUS_CARD_DETECT);
}
Sorry, I missed your original XOR here, when merging my changes:
Can you send an incremental patch against my 2/2 with your
Signed-off-by, I'll squash your patch into mine and repost the series.
Sure. Here it is:
From 18f6199947bc2681d2d63b307506019535018646 Mon Sep 17 00:00:00 2001
From: Hector Palacios <hector.palacios@xxxxxxxx>
Date: Wed, 10 Apr 2013 09:16:31 +0200
Subject: [PATCH] mmc: mxs-mmc: handle 'broken-cd' property
According to bindings documentation for mmc, the property 'broken-cd'
can be used to indicate card-detection is not available and polling
must be used instead. This patch retrieves this property
and sets a custom flag. On the get_cd() hook, it returns 1 if
the flag is set, to always assume the card is present.
Signed-off-by: Hector Palacios <hector.palacios@xxxxxxxx>
---
drivers/mmc/host/mxs-mmc.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/mmc/host/mxs-mmc.c b/drivers/mmc/host/mxs-mmc.c
index 75dee88..10c07a8 100644
--- a/drivers/mmc/host/mxs-mmc.c
+++ b/drivers/mmc/host/mxs-mmc.c
@@ -73,6 +73,7 @@ struct mxs_mmc_host {
int wp_gpio;
bool wp_inverted;
bool cd_inverted;
+ bool broken_cd;
bool non_removable;
};
@@ -97,7 +98,7 @@ static int mxs_mmc_get_cd(struct mmc_host *mmc)
struct mxs_mmc_host *host = mmc_priv(mmc);
struct mxs_ssp *ssp = &host->ssp;
- return host->non_removable ||
+ return host->non_removable || host->broken_cd ||
!(readl(ssp->base + HW_SSP_STATUS(ssp)) &
BM_SSP_STATUS_CARD_DETECT) ^ host->cd_inverted;
}
@@ -689,6 +690,7 @@ static int mxs_mmc_probe(struct platform_device
*pdev)
mmc->caps |= MMC_CAP_4_BIT_DATA;
else if (bus_width == 8)
mmc->caps |= MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA;
+ host->broken_cd = of_property_read_bool(np, "broken-cd");
host->non_removable = of_property_read_bool(np,
"non-removable");
if (host->non_removable)
mmc->caps |= MMC_CAP_NONREMOVABLE;
--
1.8.2
--
To unsubscribe from this list: send the line "unsubscribe linux-mmc" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
