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From: Michael Wu <michael@allwinnertech.com>
To: ulf.hansson@linaro.org, mripard@kernel.org, wens@csie.org,
	samuel@sholland.org, andre.przywara@arm.com
Cc: jernej.skrabec@gmail.com, linux-mmc@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org,
	Michael Wu <michael@allwinnertech.com>
Subject: [PATCH 1/3] mmc:sunxi-mmc:add support on discrete device power supply
Date: Wed, 22 Dec 2021 11:06:34 +0800	[thread overview]
Message-ID: <20211222030634.33816-1-michael@allwinnertech.com> (raw)

Because some platform has no regulator, only use discrete devices
to supply power,For this situation, to use sd/mmc card, we add ocr manually

Signed-off-by: Michael Wu <michael@allwinnertech.com>
---
 drivers/mmc/host/sunxi-mmc.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/mmc/host/sunxi-mmc.c b/drivers/mmc/host/sunxi-mmc.c
index 2702736a1c57..afeefead6501 100644
--- a/drivers/mmc/host/sunxi-mmc.c
+++ b/drivers/mmc/host/sunxi-mmc.c
@@ -1300,6 +1300,14 @@ static int sunxi_mmc_resource_request(struct sunxi_mmc_host *host,
 	if (ret)
 		return ret;
 
+	/**
+	 * Some platforms has no regulator. Discrete devices are used instead.
+	 * To support sd/mmc card, we need to add ocr manually.
+	 */
+	if (!host->mmc->ocr_avail)
+		host->mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34;
+
+
 	host->reg_base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(host->reg_base))
 		return PTR_ERR(host->reg_base);
-- 
2.29.0


WARNING: multiple messages have this Message-ID (diff)
From: Michael Wu <michael@allwinnertech.com>
To: ulf.hansson@linaro.org, mripard@kernel.org, wens@csie.org,
	samuel@sholland.org, andre.przywara@arm.com
Cc: jernej.skrabec@gmail.com, linux-mmc@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org,
	Michael Wu <michael@allwinnertech.com>
Subject: [PATCH 1/3] mmc:sunxi-mmc:add support on discrete device power supply
Date: Wed, 22 Dec 2021 11:06:34 +0800	[thread overview]
Message-ID: <20211222030634.33816-1-michael@allwinnertech.com> (raw)

Because some platform has no regulator, only use discrete devices
to supply power,For this situation, to use sd/mmc card, we add ocr manually

Signed-off-by: Michael Wu <michael@allwinnertech.com>
---
 drivers/mmc/host/sunxi-mmc.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/mmc/host/sunxi-mmc.c b/drivers/mmc/host/sunxi-mmc.c
index 2702736a1c57..afeefead6501 100644
--- a/drivers/mmc/host/sunxi-mmc.c
+++ b/drivers/mmc/host/sunxi-mmc.c
@@ -1300,6 +1300,14 @@ static int sunxi_mmc_resource_request(struct sunxi_mmc_host *host,
 	if (ret)
 		return ret;
 
+	/**
+	 * Some platforms has no regulator. Discrete devices are used instead.
+	 * To support sd/mmc card, we need to add ocr manually.
+	 */
+	if (!host->mmc->ocr_avail)
+		host->mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34;
+
+
 	host->reg_base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(host->reg_base))
 		return PTR_ERR(host->reg_base);
-- 
2.29.0


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

             reply	other threads:[~2021-12-22  3:12 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-22  3:06 Michael Wu [this message]
2021-12-22  3:06 ` [PATCH 1/3] mmc:sunxi-mmc:add support on discrete device power supply Michael Wu
2021-12-28 16:49 ` Ulf Hansson
2021-12-28 16:49   ` Ulf Hansson
2021-12-31  8:27   ` michael
2021-12-31  8:27     ` michael
2021-12-31 12:14     ` Ulf Hansson
2021-12-31 12:14       ` Ulf Hansson
2021-12-31 14:06       ` michael
2021-12-31 14:06         ` michael

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