linux-kernel - [PATCH] mmc: sdhci_am654: Add Support for TI's AM62 SoC

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Date:   Fri, 18 Feb 2022 12:58:40 +0530
From:   Aswath Govindraju <a-govindraju@...com>
To:     unlisted-recipients:; (no To-header on input)
CC:     Vignesh Raghavendra <vigneshr@...com>,
        Aswath Govindraju <a-govindraju@...com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        <linux-mmc@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH] mmc: sdhci_am654: Add Support for TI's AM62 SoC

Add support for the controller present on the AM62x SoC.

There are instances:
sdhci0: 8bit bus width, max 200 MBps
sdhci1: 4bit bus width, max 100 MBps
sdhci2: 4bit bus width, max 100 MBps

The PHY used for 8 bit instance is same as the PHY for the 4 bit instance.
Therefore, introduce a new bus width independent compatible for AM62 SoC
that uses the driver data required for 4 bit instance.

Signed-off-by: Aswath Govindraju <a-govindraju@...com>
---
 drivers/mmc/host/sdhci_am654.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/mmc/host/sdhci_am654.c b/drivers/mmc/host/sdhci_am654.c
index b4891bb26648..e54fe24d47e7 100644
--- a/drivers/mmc/host/sdhci_am654.c
+++ b/drivers/mmc/host/sdhci_am654.c
@@ -745,6 +745,10 @@ static const struct of_device_id sdhci_am654_of_match[] = {
 		.compatible = "ti,am64-sdhci-4bit",
 		.data = &sdhci_j721e_4bit_drvdata,
 	},
+	{
+		.compatible = "ti,am62-sdhci",
+		.data = &sdhci_j721e_4bit_drvdata,
+	},
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, sdhci_am654_of_match);
-- 
2.17.1