Messages in this thread | | | Date | Wed, 7 Feb 2018 20:31:21 +0100 | From | Wolfram Sang <> | Subject | Re: [PATCH v3 09/16] mmc: tmio: use MMC_CAP2_NO_WRITE_PROTECT instead of TMIO own flag |
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On Thu, Jan 18, 2018 at 01:28:09AM +0900, Masahiro Yamada wrote: > 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>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
> static void tmio_mmc_of_parse(struct platform_device *pdev, > - struct tmio_mmc_data *pdata) > + struct mmc_host *mmc)
I like how this cleanups improves things in various parts of the code, like here. Nice!
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