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Subject[PATCH v3 09/16] mmc: tmio: use MMC_CAP2_NO_WRITE_PROTECT instead of TMIO own flag
Date
TMIO_MMC_WRPROTECT_DISABLE is equivalent to MMC_CAP2_NO_WRITE_PROTECT.

Only the difference is the TMIO_... makes tmio_mmc_get_ro() return 0
(i.e. it does not affect mmc_gpio_get_ro() at all), while MMC_CAP2_...
returns 0 before calling ->get_ro() hook (i.e. it affects both IP own
logic and GPIO detection).

The TMIO MMC drivers do not set-up gpio_ro by themselves. Only the
possibility, if any, would be DT specifies "wp-gpios" property, and
gpio_ro is set by mmc_gpiod_request_ro() called from mmc_of_parse().
However, it does not make sense to specify "wp-gpios" property and
"toshiba,mmc-wrprotect-disable" at the same time.

I checked under arch/arm/boot/dts/ and arch/arm64/boot/dts/renesas/,
and I did not see any Renesas boards with "wp-gpios". So, this
conversion should be safe.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
---

Changes in v3:
- newly added

Changes in v2: None

drivers/mmc/host/tmio_mmc_core.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/mmc/host/tmio_mmc_core.c b/drivers/mmc/host/tmio_mmc_core.c
index 0032707..bdbff2d 100644
--- a/drivers/mmc/host/tmio_mmc_core.c
+++ b/drivers/mmc/host/tmio_mmc_core.c
@@ -1128,7 +1128,7 @@ static int tmio_mmc_init_ocr(struct tmio_mmc_host *host)
}

static void tmio_mmc_of_parse(struct platform_device *pdev,
- struct tmio_mmc_data *pdata)
+ struct mmc_host *mmc)
{
const struct device_node *np = pdev->dev.of_node;

@@ -1136,7 +1136,7 @@ static void tmio_mmc_of_parse(struct platform_device *pdev,
return;

if (of_get_property(np, "toshiba,mmc-wrprotect-disable", NULL))
- pdata->flags |= TMIO_MMC_WRPROTECT_DISABLE;
+ mmc->caps2 |= MMC_CAP2_NO_WRITE_PROTECT;
}

struct tmio_mmc_host *tmio_mmc_host_alloc(struct platform_device *pdev,
@@ -1171,7 +1171,7 @@ struct tmio_mmc_host *tmio_mmc_host_alloc(struct platform_device *pdev,
goto free;
}

- tmio_mmc_of_parse(pdev, pdata);
+ tmio_mmc_of_parse(pdev, mmc);

platform_set_drvdata(pdev, host);

--
2.7.4
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