Re: [PATCH v8 2/2] mmc: host: sdhci: Disable 1.8V signaling for arasan 4.9a version of SDHCI controller.
From: Suman Tripathi <hidden>
Date: 2015-06-19 12:28:02
Also in:
linux-arm-kernel, linux-mmc, linuxppc-dev
Hi , On Fri, Jun 19, 2015 at 5:30 PM, Suman Tripathi [off-list ref] wrote:
quoted hunk ↗ jump to hunk
This patch disables the 1.8V signaling for arasan 4.9a version of SDHCI controller with the help SDHCI_QUIRK2_NO_1_8_V quirk. Signed-off-by: Suman Tripathi <redacted> --- --- drivers/mmc/host/sdhci-of-arasan.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)diff --git a/drivers/mmc/host/sdhci-of-arasan.c b/drivers/mmc/host/sdhci-of-arasan.c index 21c0c08..4c99ea4 100644 --- a/drivers/mmc/host/sdhci-of-arasan.c +++ b/drivers/mmc/host/sdhci-of-arasan.c@@ -171,7 +171,8 @@ static int sdhci_arasan_probe(struct platform_device *pdev) if (of_device_is_compatible(pdev->dev.of_node, "arasan,sdhci-4.9a")) { host->quirks |= SDHCI_QUIRK_NO_HISPD_BIT; - host->quirks2 |= SDHCI_QUIRK2_HOST_NO_CMD23; + host->quirks2 |= SDHCI_QUIRK2_HOST_NO_CMD23 | + SDHCI_QUIRK2_NO_1_8_V; }
I think I am wrong here. No-1.8v is something related to board regulator circuitry not related to IP version. So it should be dts driven.
sdhci_get_of_property(pdev);
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1.8.2.1-- Thanks, with regards, Suman Tripathi -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in