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[SRU,J:linux-bluefield,v4,4/7] mmc: sdhci-of-dwcmshc: enable host V4 support for BlueField-3 SoC

Message ID 20240103183250.215811-5-limings@nvidia.com
State New
Headers show
Series [SRU,J:linux-bluefield,v4,1/7] Revert UBUNTU: SAUCE: mmc: sdhci-of-dwcmshc: Add runtime PM operations for BlueField-3 | expand

Commit Message

Liming Sun Jan. 3, 2024, 6:32 p.m. UTC 
BugLink: https://bugs.launchpad.net/bugs/2046657

This commit enables SDHCI Host V4 support on Bluefield-3 SoC to be
consistent with the default setting in firmware(UEFI).

Reviewed-by: David Woods <davwoods@nvidia.com>
Signed-off-by: Liming Sun <limings@nvidia.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/990885f566c32ac8e6888ad6b434fb70d1a5d7af.1673460632.git.limings@nvidia.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
(cherry picked from commit 95921151e04335e9e2ddf4f294405e64be4ea947)
Signed-off-by: Liming Sun <limings@nvidia.com>
---
 drivers/mmc/host/sdhci-of-dwcmshc.c | 5 +++++
 1 file changed, 5 insertions(+)
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Patch

diff --git a/drivers/mmc/host/sdhci-of-dwcmshc.c b/drivers/mmc/host/sdhci-of-dwcmshc.c
index c31daf3628fb..0adebc46eb46 100644
--- a/drivers/mmc/host/sdhci-of-dwcmshc.c
+++ b/drivers/mmc/host/sdhci-of-dwcmshc.c
@@ -453,6 +453,11 @@  static int dwcmshc_probe(struct platform_device *pdev)
 			goto err_clk;
 	}
 
+#ifdef CONFIG_ACPI
+	if (pltfm_data == &sdhci_dwcmshc_bf3_pdata)
+		sdhci_enable_v4_mode(host);
+#endif
+
 	host->mmc->caps |= MMC_CAP_WAIT_WHILE_BUSY;
 
 	err = sdhci_add_host(host);