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Fri, 23 Feb 2024 14:48:58 GMT Received: from hu-krichai-hyd.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.40; Fri, 23 Feb 2024 06:48:52 -0800 From: Krishna chaitanya chundru Date: Fri, 23 Feb 2024 20:18:03 +0530 Subject: [PATCH v7 6/7] PCI: Bring out the pcie link speed to MBps logic to new function Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-ID: <20240223-opp_support-v7-6-10b4363d7e71@quicinc.com> References: <20240223-opp_support-v7-0-10b4363d7e71@quicinc.com> In-Reply-To: <20240223-opp_support-v7-0-10b4363d7e71@quicinc.com> To: Bjorn Andersson , Konrad Dybcio , Lorenzo Pieralisi , =?utf-8?q?Krzysztof_Wilczy=C5=84?= =?utf-8?q?ski?= , Rob Herring , Bjorn Helgaas , Krzysztof Kozlowski , Conor Dooley , Manivannan Sadhasivam , Rob Herring , Johan Hovold , Brian Masney , Georgi Djakov CC: , , , , , , , , , Krishna chaitanya chundru X-Mailer: b4 0.13-dev-83828 X-Developer-Signature: v=1; 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Create a new macro to convert from MBps to frequency. Signed-off-by: Krishna chaitanya chundru --- drivers/pci/pci.c | 19 +------------------ drivers/pci/pci.h | 24 ++++++++++++++++++++++++ 2 files changed, 25 insertions(+), 18 deletions(-) diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index d8f11a078924..b441ab862a8d 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -6309,24 +6309,7 @@ int pcie_link_speed_mbps(struct pci_dev *pdev) if (err) return err; - switch (to_pcie_link_speed(lnksta)) { - case PCIE_SPEED_2_5GT: - return 2500; - case PCIE_SPEED_5_0GT: - return 5000; - case PCIE_SPEED_8_0GT: - return 8000; - case PCIE_SPEED_16_0GT: - return 16000; - case PCIE_SPEED_32_0GT: - return 32000; - case PCIE_SPEED_64_0GT: - return 64000; - default: - break; - } - - return -EINVAL; + return pcie_link_speed_to_mbps(to_pcie_link_speed(lnksta)); } EXPORT_SYMBOL(pcie_link_speed_mbps); diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index 2336a8d1edab..82e715ebe383 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -282,6 +282,30 @@ void pci_bus_put(struct pci_bus *bus); (speed) == PCIE_SPEED_2_5GT ? 2500*8/10 : \ 0) +static inline int pcie_link_speed_to_mbps(enum pci_bus_speed speed) +{ + switch (speed) { + case PCIE_SPEED_2_5GT: + return 2500; + case PCIE_SPEED_5_0GT: + return 5000; + case PCIE_SPEED_8_0GT: + return 8000; + case PCIE_SPEED_16_0GT: + return 16000; + case PCIE_SPEED_32_0GT: + return 32000; + case PCIE_SPEED_64_0GT: + return 64000; + default: + break; + } + + return -EINVAL; +} + +#define PCIE_MBS2FREQ(speed) (pcie_link_speed_to_mbps(speed) * 1000) + const char *pci_speed_string(enum pci_bus_speed speed); enum pci_bus_speed pcie_get_speed_cap(struct pci_dev *dev); enum pcie_link_width pcie_get_width_cap(struct pci_dev *dev);