6.6-stable review patch. If anyone has any objections, please let me know.
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From: Andy-ld Lu andy-ld.lu@mediatek.com
[ Upstream commit 2508925fb346661bad9f50b497d7ac7d0b6085d0 ]
Currently, the MMC_CAP2_CRYPTO flag is set by default for eMMC hosts. However, this flag should not be set for hosts that do not support inline encryption.
The 'crypto' clock, as described in the documentation, is used for data encryption and decryption. Therefore, only hosts that are configured with this 'crypto' clock should have the MMC_CAP2_CRYPTO flag set.
Fixes: 7b438d0377fb ("mmc: mtk-sd: add Inline Crypto Engine clock control") Fixes: ed299eda8fbb ("mmc: mtk-sd: fix devm_clk_get_optional usage") Signed-off-by: Andy-ld Lu andy-ld.lu@mediatek.com Cc: stable@vger.kernel.org Message-ID: 20241111085039.26527-1-andy-ld.lu@mediatek.com Signed-off-by: Ulf Hansson ulf.hansson@linaro.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/mmc/host/mtk-sd.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/mmc/host/mtk-sd.c b/drivers/mmc/host/mtk-sd.c index c5e96a2c079e5..1896bf6746071 100644 --- a/drivers/mmc/host/mtk-sd.c +++ b/drivers/mmc/host/mtk-sd.c @@ -2712,7 +2712,8 @@ static int msdc_drv_probe(struct platform_device *pdev) host->crypto_clk = devm_clk_get_optional(&pdev->dev, "crypto"); if (IS_ERR(host->crypto_clk)) return PTR_ERR(host->crypto_clk); - mmc->caps2 |= MMC_CAP2_CRYPTO; + else if (host->crypto_clk) + mmc->caps2 |= MMC_CAP2_CRYPTO; }
host->irq = platform_get_irq(pdev, 0);