linux-kernel - Re: [PATCH v2 6/6] clk: qcom: Add TCSR clock driver for Eliza

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Message-ID: <fb7bd7de-61ee-46f7-826a-2c9c32aa9c2d@oss.qualcomm.com>
Date: Wed, 28 Jan 2026 11:34:49 +0100
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Abel Vesa <abel.vesa@....qualcomm.com>,
        Bjorn Andersson <andersson@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd
 <sboyd@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley
 <conor+dt@...nel.org>,
        Luca Weiss <luca.weiss@...rphone.com>,
        Taniya Das <taniya.das@....qualcomm.com>,
        Taniya Das <quic_tdas@...cinc.com>
Cc: linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 6/6] clk: qcom: Add TCSR clock driver for Eliza

On 1/27/26 4:03 PM, Abel Vesa wrote:
> Add the TCSR clock controller that provides the refclks on Eliza
> platform for PCIe, USB and UFS subsystems.
> 
> Co-developed-by: Taniya Das <taniya.das@....qualcomm.com>
> Signed-off-by: Taniya Das <taniya.das@....qualcomm.com>
> Signed-off-by: Abel Vesa <abel.vesa@....qualcomm.com>
> ---

[...]

> +++ b/drivers/clk/qcom/tcsrcc-eliza.c
> @@ -0,0 +1,144 @@
> +// SPDX-License-Identifier: GPL-2.0-only
> +/*
> + * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
> + */
> +
> +#include <linux/clk-provider.h>
> +#include <linux/mod_devicetable.h>
> +#include <linux/module.h>
> +#include <linux/of.h>
> +#include <linux/platform_device.h>
> +#include <linux/regmap.h>
> +
> +#include <dt-bindings/clock/qcom,eliza-tcsr.h>
> +
> +#include "clk-branch.h"
> +#include "clk-regmap.h"
> +#include "common.h"
> +
> +enum {
> +	DT_BI_TCXO_PAD,
> +};
> +
> +static struct clk_branch tcsr_pcie_0_clkref_en = {
> +	.halt_reg = 0x0,

These regs certainly aren't at +0x0 to what we normally expect to
be the start of the TCSR node

[...]

> +static struct clk_regmap *tcsr_cc_eliza_clocks[] = {
> +	[TCSR_PCIE_0_CLKREF_EN] = &tcsr_pcie_0_clkref_en.clkr,
> +	[TCSR_UFS_CLKREF_EN] = &tcsr_ufs_clkref_en.clkr,
> +	[TCSR_USB2_CLKREF_EN] = &tcsr_usb2_clkref_en.clkr,
> +	[TCSR_USB3_CLKREF_EN] = &tcsr_usb3_clkref_en.clkr,

I don't think this list is complete

Konrad