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Diffstat (limited to 'target/linux/sunxi/patches-3.13/170-4-mmc-stop-claiming-UHS.patch')
-rw-r--r--target/linux/sunxi/patches-3.13/170-4-mmc-stop-claiming-UHS.patch32
1 files changed, 32 insertions, 0 deletions
diff --git a/target/linux/sunxi/patches-3.13/170-4-mmc-stop-claiming-UHS.patch b/target/linux/sunxi/patches-3.13/170-4-mmc-stop-claiming-UHS.patch
new file mode 100644
index 0000000..2ff34be
--- /dev/null
+++ b/target/linux/sunxi/patches-3.13/170-4-mmc-stop-claiming-UHS.patch
@@ -0,0 +1,32 @@
+From 3ec947a9717509e204c7f09609717951beb7ef04 Mon Sep 17 00:00:00 2001
+From: Hans de Goede <hdegoede@redhat.com>
+Date: Mon, 17 Feb 2014 17:11:58 +0100
+Subject: [PATCH] sunxi-mmc: Stop claiming UHS modes
+
+UHS requires a regulator to set the signaling voltage, as well as special
+code to handle the signal voltage switching. We've never added the code
+for this from the android driver to the upstream driver, so stop claiming
+support for this.
+
+Signed-off-by: Hans de Goede <hdegoede@redhat.com>
+---
+ drivers/mmc/host/sunxi-mmc.c | 3 +--
+ 1 file changed, 1 insertion(+), 2 deletions(-)
+
+diff --git a/drivers/mmc/host/sunxi-mmc.c b/drivers/mmc/host/sunxi-mmc.c
+index c1a9d8a..2eaed10 100644
+--- a/drivers/mmc/host/sunxi-mmc.c
++++ b/drivers/mmc/host/sunxi-mmc.c
+@@ -803,8 +803,7 @@ static int sunxi_mmc_probe(struct platform_device *pdev)
+ mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34;
+
+ mmc->caps = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED |
+- MMC_CAP_UHS_SDR12 | MMC_CAP_UHS_SDR25 | MMC_CAP_UHS_SDR50 |
+- MMC_CAP_UHS_DDR50 | MMC_CAP_SDIO_IRQ | MMC_CAP_DRIVER_TYPE_A;
++ MMC_CAP_SDIO_IRQ;
+ mmc->caps2 = MMC_CAP2_NO_PRESCAN_POWERUP;
+
+ ret = mmc_add_host(mmc);
+--
+1.8.5.5
+