[PATCH 1/3] mmc:sunxi-mmc:add support on discrete device power supply

[Michael Wu]

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 at 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