linux-kernel - [PATCH v2 2/2] mmc: core: expose MMC_CAP2_NO

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Message-Id: <1468484764-32353-2-git-send-email-shawn.lin@rock-chips.com>
Date:	Thu, 14 Jul 2016 16:26:04 +0800
From:	Shawn Lin <shawn.lin@...k-chips.com>
To:	Ulf Hansson <ulf.hansson@...aro.org>
Cc:	Adrian Hunter <adrian.hunter@...el.com>,
	Jaehoon Chung <jh80.chung@...sung.com>,
	Rob Herring <robh+dt@...nel.org>, linux-mmc@...r.kernel.org,
	linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
	Shawn Lin <shawn.lin@...k-chips.com>
Subject: [PATCH v2 2/2] mmc: core: expose MMC_CAP2_NO_* to dt

The reason for why we expose these to dt is that some of
the controller is unable to send special cmd type due to
the hw limitation.

Signed-off-by: Shawn Lin <shawn.lin@...k-chips.com>

---

Changes in v2:
- amend the commit msg

 drivers/mmc/core/host.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c
index d7e86f9..98f25ff 100644
--- a/drivers/mmc/core/host.c
+++ b/drivers/mmc/core/host.c
@@ -315,6 +315,12 @@ int mmc_of_parse(struct mmc_host *host)
 		host->caps2 |= MMC_CAP2_HS400_1_2V | MMC_CAP2_HS200_1_2V_SDR;
 	if (of_property_read_bool(np, "mmc-hs400-enhanced-strobe"))
 		host->caps2 |= MMC_CAP2_HS400_ES;
+	if (of_property_read_bool(np, "no-sdio"))
+		host->caps2 |= MMC_CAP2_NO_SDIO;
+	if (of_property_read_bool(np, "no-sd"))
+		host->caps2 |= MMC_CAP2_NO_SD;
+	if (of_property_read_bool(np, "no-mmc"))
+		host->caps2 |= MMC_CAP2_NO_MMC;
 
 	host->dsr_req = !of_property_read_u32(np, "dsr", &host->dsr);
 	if (host->dsr_req && (host->dsr & ~0xffff)) {
-- 
2.3.7