linux-kernel - [PATCH v1 1/1] mmc: sdhci-of-dwcmshc: add ACPI match data for BlueField-3 SoC

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Date:   Fri, 29 Jul 2022 09:17:14 -0400
From:   Liming Sun <limings@...dia.com>
To:     Adrian Hunter <adrian.hunter@...el.com>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        David Woods <davwoods@...dia.com>,
        Shawn Lin <shawn.lin@...k-chips.com>
CC:     Liming Sun <limings@...dia.com>, <linux-mmc@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH v1 1/1] mmc: sdhci-of-dwcmshc: add ACPI match data for BlueField-3 SoC

Commit 08f3dff799d43 introduces the of_device_get_match_data()
checking for some chip but breaks the BlueField-3 firmware which
uses ACPI instead. This commit adds the ACPI match data and
quirks/quirks2 to re-enable the support of BlueField-3 SoC.

Reviewed-by: David Woods <davwoods@...dia.com>
Signed-off-by: Liming Sun <limings@...dia.com>
---
 drivers/mmc/host/sdhci-of-dwcmshc.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/drivers/mmc/host/sdhci-of-dwcmshc.c b/drivers/mmc/host/sdhci-of-dwcmshc.c
index bac874ab0b33..173a9167a2f8 100644
--- a/drivers/mmc/host/sdhci-of-dwcmshc.c
+++ b/drivers/mmc/host/sdhci-of-dwcmshc.c
@@ -279,6 +279,13 @@ static const struct sdhci_pltfm_data sdhci_dwcmshc_pdata = {
 	.quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN,
 };
 
+static const struct sdhci_pltfm_data sdhci_dwcmshc_bf3_pdata = {
+	.ops = &sdhci_dwcmshc_ops,
+	.quirks = SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN,
+	.quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN |
+		   SDHCI_QUIRK2_ACMD23_BROKEN,
+};
+
 static const struct sdhci_pltfm_data sdhci_dwcmshc_rk3568_pdata = {
 	.ops = &sdhci_dwcmshc_rk3568_ops,
 	.quirks = SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN |
@@ -336,7 +343,10 @@ MODULE_DEVICE_TABLE(of, sdhci_dwcmshc_dt_ids);
 
 #ifdef CONFIG_ACPI
 static const struct acpi_device_id sdhci_dwcmshc_acpi_ids[] = {
-	{ .id = "MLNXBF30" },
+	{
+		.id = "MLNXBF30",
+		.driver_data = (kernel_ulong_t)&sdhci_dwcmshc_bf3_pdata,
+	},
 	{}
 };
 #endif
@@ -352,7 +362,7 @@ static int dwcmshc_probe(struct platform_device *pdev)
 	int err;
 	u32 extra;
 
-	pltfm_data = of_device_get_match_data(&pdev->dev);
+	pltfm_data = device_get_match_data(&pdev->dev);
 	if (!pltfm_data) {
 		dev_err(&pdev->dev, "Error: No device match data found\n");
 		return -ENODEV;
-- 
2.30.1