Re: [PATCH v1 1/2] PCI: qcom: Add system PM support

From: Matthias Kaehlcke <mka@chromium.org>
To: Krishna chaitanya chundru <quic_krichai@quicinc.com>
Cc: helgaas@kernel.org, linux-pci@vger.kernel.org,
	linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org,
	quic_vbadigan@quicinc.com, quic_hemantk@quicinc.com,
	quic_nitegupt@quicinc.com, quic_skananth@quicinc.com,
	quic_ramkri@quicinc.com, manivannan.sadhasivam@linaro.org,
	swboyd@chromium.org, "Andy Gross" <agross@kernel.org>,
	"Bjorn Andersson" <bjorn.andersson@linaro.org>,
	"Stanimir Varbanov" <svarbanov@mm-sol.com>,
	"Lorenzo Pieralisi" <lorenzo.pieralisi@arm.com>,
	"Rob Herring" <robh@kernel.org>,
	"Krzysztof Wilczyński" <kw@linux.com>,
	"Bjorn Helgaas" <bhelgaas@google.com>
Subject: Re: [PATCH v1 1/2] PCI: qcom: Add system PM support
Date: Fri, 24 Jun 2022 11:31:30 -0700	[thread overview]
Message-ID: <YrYDAtzI5g2gdmqu@google.com> (raw)
In-Reply-To: <1656055682-18817-2-git-send-email-quic_krichai@quicinc.com>

On Fri, Jun 24, 2022 at 12:58:01PM +0530, Krishna chaitanya chundru wrote:
> Add suspend and resume pm callbacks.
> 
> When system suspends, and if the link is in L1ss, disable the clocks
> so that system enters into low power state to save the maximum power.
> And when the system resumes, enable the clocks back if they are
> disabled in the suspend path.
> 
> Signed-off-by: Krishna chaitanya chundru <quic_krichai@quicinc.com>

On which tree is this series based on?

With v5.19-rc3 I get:

  CC      drivers/pci/controller/dwc/pcie-qcom.o
/mnt/host/source/src/third_party/kernel/v5.15/drivers/pci/controller/dwc/pcie-qcom.c:1658:26: error: cannot assign to non-static data member 'cfg' with const-qualified type 'const struct qcom_pcie_cfg *'
        pcie->cfg->is_suspended = false;
        ~~~~~~~~~~~~~~~~~~~~~~~ ^
/mnt/host/source/src/third_party/kernel/v5.15/drivers/pci/controller/dwc/pcie-qcom.c:218:30: note: non-static data member 'cfg' declared const here
        const struct qcom_pcie_cfg *cfg;
        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~
/mnt/host/source/src/third_party/kernel/v5.15/drivers/pci/controller/dwc/pcie-qcom.c:1721:2: error: use of undeclared identifier 'val'
        val = readl(pcie->parf + PCIE20_PARF_PM_STTS);
        ^
/mnt/host/source/src/third_party/kernel/v5.15/drivers/pci/controller/dwc/pcie-qcom.c:1722:8: error: use of undeclared identifier 'val'
        if (!(val & PCIE20_PARF_PM_STTS_LINKST_IN_L1SUB)) {
              ^
/mnt/host/source/src/third_party/kernel/v5.15/drivers/pci/controller/dwc/pcie-qcom.c:1733:26: error: cannot assign to non-static data member 'cfg' with const-qualified type 'const struct qcom_pcie_cfg *'
        pcie->cfg->is_suspended = true;
        ~~~~~~~~~~~~~~~~~~~~~~~ ^
/mnt/host/source/src/third_party/kernel/v5.15/drivers/pci/controller/dwc/pcie-qcom.c:218:30: note: non-static data member 'cfg' declared const here
        const struct qcom_pcie_cfg *cfg;
        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~
/mnt/host/source/src/third_party/kernel/v5.15/drivers/pci/controller/dwc/pcie-qcom.c:1749:9: error: no member named 'ops' in 'struct qcom_pcie'
                pcie->ops->enable_clks(pcie);
                ~~~~  ^
/mnt/host/source/src/third_party/kernel/v5.15/drivers/pci/controller/dwc/pcie-qcom.c:1752:9: error: no member named 'ops' in 'struct qcom_pcie'
                pcie->ops->post_init(pcie);
                ~~~~  ^
/mnt/host/source/src/third_party/kernel/v5.15/drivers/pci/controller/dwc/pcie-qcom.c:1754:26: error: cannot assign to non-static data member 'cfg' with const-qualified type 'const struct qcom_pcie_cfg *'
        pcie->cfg->is_suspended = false;
        ~~~~~~~~~~~~~~~~~~~~~~~ ^
/mnt/host/source/src/third_party/kernel/v5.15/drivers/pci/controller/dwc/pcie-qcom.c:218:30: note: non-static data member 'cfg' declared const here
        const struct qcom_pcie_cfg *cfg;
        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~
7 errors generated.