linux-kernel - [PATCH v3 6/6] hwrng: exynos: Enable Exynos850 support

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Message-Id: <20240620231339.1574-7-semen.protsenko@linaro.org>
Date: Thu, 20 Jun 2024 18:13:39 -0500
From: Sam Protsenko <semen.protsenko@...aro.org>
To: Łukasz Stelmach <l.stelmach@...sung.com>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>
Cc: Anand Moon <linux.amoon@...il.com>,
	Olivia Mackall <olivia@...enic.com>,
	Herbert Xu <herbert@...dor.apana.org.au>,
	Alim Akhtar <alim.akhtar@...sung.com>,
	linux-samsung-soc@...r.kernel.org,
	linux-crypto@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v3 6/6] hwrng: exynos: Enable Exynos850 support

Add Exynos850 compatible and its driver data. It's only possible to
access TRNG block via SMC calls in Exynos850, so specify that fact using
EXYNOS_SMC flag in the driver data.

Signed-off-by: Sam Protsenko <semen.protsenko@...aro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Acked-by: Łukasz Stelmach <l.stelmach@...sung.com>
---
Changes in v3:
  - Added R-b tag from Krzysztof
  - Added A-b tag from Łukasz

Changes in v2:
  - Changed QUIRK_SMC to EXYNOS_SMC to reflect the name change in the
    previous patch

 drivers/char/hw_random/exynos-trng.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/char/hw_random/exynos-trng.c b/drivers/char/hw_random/exynos-trng.c
index 9fa30583cc86..9f039fddaee3 100644
--- a/drivers/char/hw_random/exynos-trng.c
+++ b/drivers/char/hw_random/exynos-trng.c
@@ -320,6 +320,9 @@ static DEFINE_SIMPLE_DEV_PM_OPS(exynos_trng_pm_ops, exynos_trng_suspend,
 static const struct of_device_id exynos_trng_dt_match[] = {
 	{
 		.compatible = "samsung,exynos5250-trng",
+	}, {
+		.compatible = "samsung,exynos850-trng",
+		.data = (void *)EXYNOS_SMC,
 	},
 	{ },
 };
-- 
2.39.2