linux-kernel - [PATCH 1/3] phy: Add UFS phy hibernate modes

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Message-ID: <20241002201555.3332138-2-peter.griffin@linaro.org>
Date: Wed,  2 Oct 2024 21:15:53 +0100
From: Peter Griffin <peter.griffin@...aro.org>
To: vkoul@...nel.org,
	kishon@...nel.org,
	krzysztof.kozlowski@...aro.org,
	alim.akhtar@...sung.com
Cc: tudor.ambarus@...aro.org,
	andre.draszik@...aro.org,
	kernel-team@...roid.com,
	willmcvicker@...gle.com,
	linux-phy@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-samsung-soc@...r.kernel.org,
	Peter Griffin <peter.griffin@...aro.org>
Subject: [PATCH 1/3] phy: Add UFS phy hibernate modes

Some UFS phys need to write hibernation specific values
when entering and exiting hibernate state.

Add two new UFS phy modes to the phy framework so that this
is possible. One such platform that requires this is Pixel 6
which uses the gs101 SoC.

Signed-off-by: Peter Griffin <peter.griffin@...aro.org>
---
 include/linux/phy/phy.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h
index 03cd5bae92d3..1874e55e2bb9 100644
--- a/include/linux/phy/phy.h
+++ b/include/linux/phy/phy.h
@@ -42,7 +42,9 @@ enum phy_mode {
 	PHY_MODE_MIPI_DPHY,
 	PHY_MODE_SATA,
 	PHY_MODE_LVDS,
-	PHY_MODE_DP
+	PHY_MODE_DP,
+	PHY_MODE_UFS_HIBERN8_ENTER,
+	PHY_MODE_UFS_HIBERN8_EXIT,
 };
 
 enum phy_media {
-- 
2.46.1.824.gd892dcdcdd-goog