From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- drivers/clk/qcom/clk-regmap-phy-mux.h | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 drivers/clk/qcom/clk-regmap-phy-mux.h (limited to 'drivers/clk/qcom/clk-regmap-phy-mux.h') diff --git a/drivers/clk/qcom/clk-regmap-phy-mux.h b/drivers/clk/qcom/clk-regmap-phy-mux.h new file mode 100644 index 000000000..614dd3846 --- /dev/null +++ b/drivers/clk/qcom/clk-regmap-phy-mux.h @@ -0,0 +1,33 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (c) 2022, Linaro Ltd. + */ + +#ifndef __QCOM_CLK_REGMAP_PHY_MUX_H__ +#define __QCOM_CLK_REGMAP_PHY_MUX_H__ + +#include "clk-regmap.h" + +/* + * A clock implementation for PHY pipe and symbols clock muxes. + * + * If the clock is running off the from-PHY source, report it as enabled. + * Report it as disabled otherwise (if it uses reference source). + * + * This way the PHY will disable the pipe clock before turning off the GDSC, + * which in turn would lead to disabling corresponding pipe_clk_src (and thus + * it being parked to a safe, reference clock source). And vice versa, after + * enabling the GDSC the PHY will enable the pipe clock, which would cause + * pipe_clk_src to be switched from a safe source to the working one. + * + * For some platforms this should be used for the UFS symbol_clk_src clocks + * too. + */ +struct clk_regmap_phy_mux { + u32 reg; + struct clk_regmap clkr; +}; + +extern const struct clk_ops clk_regmap_phy_mux_ops; + +#endif -- cgit v1.2.3