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Mon, 19 Oct 2026 09:17:46 -0700 (PDT) Received: from redducc.localdomain ([183.83.156.125]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-360819be413sm33410985eec.13.2026.10.19.09.17.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 19 Oct 2026 09:17:45 -0700 (PDT) From: redducc To: Bjorn Andersson , Abel Vesa , Stephen Boyd , Brian Masney , Jerome Brunet , Vinod Koul , Vladimir Zapolskiy Cc: linux-arm-msm@vger.kernel.org, linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 0/3] clk: qcom: sm8450: Fix eUSB3 clkref rate and camera power collapse Date: Mon, 19 Oct 2026 16:17:37 +0000 Message-ID: <20261019161740.2384-1-sushmit718@gmail.com> X-Mailer: git-send-email 2.43.0 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Three fixes for the SM8450 clock controllers, found while bringing up the Nothing Phone (2), which uses the SM8450 derivative SM8475. Patch 1 parents gcc_eusb3_0_clkref_en to bi_tcxo. Without a parent its rate reads as 0, and the SNPS eUSB2 PHY rejects it as its reference clock, so USB doesn't come up on SM8475. Patches 2 and 3 fix camera power collapse in camcc-sm8450, matching what camcc-sm8550 already does: - set RETAIN_FF_ENABLE and the GDSC wait values, so the IFE GDSC doesn't get stuck off when powered up for the next session - park the camera RCGs on XO while disabled (clk_rcg2_shared_ops), so the Titan top GDSC doesn't hang the SoC when it collapses after a camera session Tested on the Nothing Phone (2) (SM8475). The patches apply to next-20261016 and build without warnings at W=1. redducc (3): clk: qcom: gcc-sm8450: Parent the eUSB3 clkref to bi_tcxo clk: qcom: camcc-sm8450: Retain flops across camera GDSC collapse clk: qcom: camcc-sm8450: Park the camera RCGs when they are disabled drivers/clk/qcom/camcc-sm8450.c | 113 ++++++++++++++++++++------------ drivers/clk/qcom/gcc-sm8450.c | 4 ++ 2 files changed, 74 insertions(+), 43 deletions(-) base-commit: 6a56f4f29711dd2da49f03a5b99ce53779e638d7 prerequisite-patch-id: 154550924ab1d2c1bc95517c058aaee0bb242f92 -- 2.43.0