linux-kernel - [PATCH] mmc: renesas_sdhi_internal_dmac: Add MMC_CAP

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Date:   Tue, 12 Nov 2019 14:48:08 +0100
From:   Eugeniu Rosca <erosca@...adit-jv.com>
To:     Wolfram Sang <wsa+renesas@...g-engineering.com>,
        Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>,
        Niklas Söderlund <niklas.soderlund@...natech.se>,
        Ulf Hansson <ulf.hansson@...aro.org>
CC:     Geert Uytterhoeven <geert@...ux-m68k.org>,
        Simon Horman <horms+renesas@...ge.net.au>,
        <linux-mmc@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-renesas-soc@...r.kernel.org>,
        Eugeniu Rosca <erosca@...adit-jv.com>,
        Eugeniu Rosca <roscaeugeniu@...il.com>,
        Harish Jenny K N <harish_kandiga@...tor.com>,
        Andrew Gabbasov <andrew_gabbasov@...tor.com>
Subject: [PATCH] mmc: renesas_sdhi_internal_dmac: Add MMC_CAP_ERASE to Gen3 SoCs

From: Harish Jenny K N <harish_kandiga@...tor.com>

Enable MMC_CAP_ERASE capability in the driver to allow
erase/discard/trim requests.

Suggested-by: Andrew Gabbasov <andrew_gabbasov@...tor.com>
Signed-off-by: Harish Jenny K N <harish_kandiga@...tor.com>
[erosca: Forward-port and test on v5.4-rc7 using H3ULCB-KF:
         "blkdiscard /dev/mmcblk0" passes with this patch applied
         and complains otherwise:
	 "BLKDISCARD ioctl failed: Operation not supported"]
Signed-off-by: Eugeniu Rosca <erosca@...adit-jv.com>
---
 drivers/mmc/host/renesas_sdhi_internal_dmac.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mmc/host/renesas_sdhi_internal_dmac.c b/drivers/mmc/host/renesas_sdhi_internal_dmac.c
index a66f8d6d61d1..61fcbf51c947 100644
--- a/drivers/mmc/host/renesas_sdhi_internal_dmac.c
+++ b/drivers/mmc/host/renesas_sdhi_internal_dmac.c
@@ -105,7 +105,7 @@ static const struct renesas_sdhi_of_data of_rcar_gen3_compatible = {
 	.tmio_flags	= TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_CLK_ACTUAL |
 			  TMIO_MMC_HAVE_CBSY | TMIO_MMC_MIN_RCAR2,
 	.capabilities	= MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ |
-			  MMC_CAP_CMD23,
+			  MMC_CAP_ERASE | MMC_CAP_CMD23,
 	.capabilities2	= MMC_CAP2_NO_WRITE_PROTECT | MMC_CAP2_MERGE_CAPABLE,
 	.bus_shift	= 2,
 	.scc_offset	= 0x1000,
-- 
2.24.0