From: Shradha Todi <shradha.t@samsung.com> To: jingoohan1@gmail.com, lpieralisi@kernel.org, kw@linux.com, robh@kernel.org, bhelgaas@google.com, krzysztof.kozlowski@linaro.org, alim.akhtar@samsung.com Cc: linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org, pankaj.dubey@samsung.com, Shradha Todi <shradha.t@samsung.com> Subject: [PATCH] PCI: exynos: Adapt to clk_bulk_* APIs Date: Mon, 9 Oct 2023 11:52:16 +0530 [thread overview] Message-ID: <20231009062216.6729-1-shradha.t@samsung.com> (raw) In-Reply-To: CGME20231009062222epcas5p36768b75c13c7c79965b5863521361a64@epcas5p3.samsung.com There is no need to hardcode the clock info in the driver as driver can rely on the devicetree to supply the clocks required for the functioning of the peripheral. Get rid of the static clock info and obtain the platform supplied clocks. The total number of clocks supplied is obtained using the devm_clk_bulk_get_all() API and used for the rest of the clk_bulk_* APIs. Signed-off-by: Shradha Todi <shradha.t@samsung.com> --- drivers/pci/controller/dwc/pci-exynos.c | 46 ++++++------------------- 1 file changed, 11 insertions(+), 35 deletions(-) diff --git a/drivers/pci/controller/dwc/pci-exynos.c b/drivers/pci/controller/dwc/pci-exynos.c index 9e42cfcd99cc..023cf41fccd7 100644 --- a/drivers/pci/controller/dwc/pci-exynos.c +++ b/drivers/pci/controller/dwc/pci-exynos.c @@ -54,8 +54,8 @@ struct exynos_pcie { struct dw_pcie pci; void __iomem *elbi_base; - struct clk *clk; - struct clk *bus_clk; + struct clk_bulk_data *clks; + int clk_cnt; struct phy *phy; struct regulator_bulk_data supplies[2]; }; @@ -65,30 +65,18 @@ static int exynos_pcie_init_clk_resources(struct exynos_pcie *ep) struct device *dev = ep->pci.dev; int ret; - ret = clk_prepare_enable(ep->clk); - if (ret) { - dev_err(dev, "cannot enable pcie rc clock"); + ret = devm_clk_bulk_get_all(dev, &ep->clks); + if (ret < 0) return ret; - } - ret = clk_prepare_enable(ep->bus_clk); - if (ret) { - dev_err(dev, "cannot enable pcie bus clock"); - goto err_bus_clk; - } + ep->clk_cnt = ret; - return 0; - -err_bus_clk: - clk_disable_unprepare(ep->clk); - - return ret; + return clk_bulk_prepare_enable(ep->clk_cnt, ep->clks); } static void exynos_pcie_deinit_clk_resources(struct exynos_pcie *ep) { - clk_disable_unprepare(ep->bus_clk); - clk_disable_unprepare(ep->clk); + clk_bulk_disable_unprepare(ep->clk_cnt, ep->clks); } static void exynos_pcie_writel(void __iomem *base, u32 val, u32 reg) @@ -332,17 +320,9 @@ static int exynos_pcie_probe(struct platform_device *pdev) if (IS_ERR(ep->elbi_base)) return PTR_ERR(ep->elbi_base); - ep->clk = devm_clk_get(dev, "pcie"); - if (IS_ERR(ep->clk)) { - dev_err(dev, "Failed to get pcie rc clock\n"); - return PTR_ERR(ep->clk); - } - - ep->bus_clk = devm_clk_get(dev, "pcie_bus"); - if (IS_ERR(ep->bus_clk)) { - dev_err(dev, "Failed to get pcie bus clock\n"); - return PTR_ERR(ep->bus_clk); - } + ret = exynos_pcie_init_clk_resources(ep); + if (ret < 0) + return ret; ep->supplies[0].supply = "vdd18"; ep->supplies[1].supply = "vdd10"; @@ -351,10 +331,6 @@ static int exynos_pcie_probe(struct platform_device *pdev) if (ret) return ret; - ret = exynos_pcie_init_clk_resources(ep); - if (ret) - return ret; - ret = regulator_bulk_enable(ARRAY_SIZE(ep->supplies), ep->supplies); if (ret) return ret; @@ -369,8 +345,8 @@ static int exynos_pcie_probe(struct platform_device *pdev) fail_probe: phy_exit(ep->phy); - exynos_pcie_deinit_clk_resources(ep); regulator_bulk_disable(ARRAY_SIZE(ep->supplies), ep->supplies); + exynos_pcie_deinit_clk_resources(ep); return ret; } -- 2.17.1
WARNING: multiple messages have this Message-ID (diff)
From: Shradha Todi <shradha.t@samsung.com> To: jingoohan1@gmail.com, lpieralisi@kernel.org, kw@linux.com, robh@kernel.org, bhelgaas@google.com, krzysztof.kozlowski@linaro.org, alim.akhtar@samsung.com Cc: linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org, pankaj.dubey@samsung.com, Shradha Todi <shradha.t@samsung.com> Subject: [PATCH] PCI: exynos: Adapt to clk_bulk_* APIs Date: Mon, 9 Oct 2023 11:52:16 +0530 [thread overview] Message-ID: <20231009062216.6729-1-shradha.t@samsung.com> (raw) In-Reply-To: CGME20231009062222epcas5p36768b75c13c7c79965b5863521361a64@epcas5p3.samsung.com There is no need to hardcode the clock info in the driver as driver can rely on the devicetree to supply the clocks required for the functioning of the peripheral. Get rid of the static clock info and obtain the platform supplied clocks. The total number of clocks supplied is obtained using the devm_clk_bulk_get_all() API and used for the rest of the clk_bulk_* APIs. Signed-off-by: Shradha Todi <shradha.t@samsung.com> --- drivers/pci/controller/dwc/pci-exynos.c | 46 ++++++------------------- 1 file changed, 11 insertions(+), 35 deletions(-) diff --git a/drivers/pci/controller/dwc/pci-exynos.c b/drivers/pci/controller/dwc/pci-exynos.c index 9e42cfcd99cc..023cf41fccd7 100644 --- a/drivers/pci/controller/dwc/pci-exynos.c +++ b/drivers/pci/controller/dwc/pci-exynos.c @@ -54,8 +54,8 @@ struct exynos_pcie { struct dw_pcie pci; void __iomem *elbi_base; - struct clk *clk; - struct clk *bus_clk; + struct clk_bulk_data *clks; + int clk_cnt; struct phy *phy; struct regulator_bulk_data supplies[2]; }; @@ -65,30 +65,18 @@ static int exynos_pcie_init_clk_resources(struct exynos_pcie *ep) struct device *dev = ep->pci.dev; int ret; - ret = clk_prepare_enable(ep->clk); - if (ret) { - dev_err(dev, "cannot enable pcie rc clock"); + ret = devm_clk_bulk_get_all(dev, &ep->clks); + if (ret < 0) return ret; - } - ret = clk_prepare_enable(ep->bus_clk); - if (ret) { - dev_err(dev, "cannot enable pcie bus clock"); - goto err_bus_clk; - } + ep->clk_cnt = ret; - return 0; - -err_bus_clk: - clk_disable_unprepare(ep->clk); - - return ret; + return clk_bulk_prepare_enable(ep->clk_cnt, ep->clks); } static void exynos_pcie_deinit_clk_resources(struct exynos_pcie *ep) { - clk_disable_unprepare(ep->bus_clk); - clk_disable_unprepare(ep->clk); + clk_bulk_disable_unprepare(ep->clk_cnt, ep->clks); } static void exynos_pcie_writel(void __iomem *base, u32 val, u32 reg) @@ -332,17 +320,9 @@ static int exynos_pcie_probe(struct platform_device *pdev) if (IS_ERR(ep->elbi_base)) return PTR_ERR(ep->elbi_base); - ep->clk = devm_clk_get(dev, "pcie"); - if (IS_ERR(ep->clk)) { - dev_err(dev, "Failed to get pcie rc clock\n"); - return PTR_ERR(ep->clk); - } - - ep->bus_clk = devm_clk_get(dev, "pcie_bus"); - if (IS_ERR(ep->bus_clk)) { - dev_err(dev, "Failed to get pcie bus clock\n"); - return PTR_ERR(ep->bus_clk); - } + ret = exynos_pcie_init_clk_resources(ep); + if (ret < 0) + return ret; ep->supplies[0].supply = "vdd18"; ep->supplies[1].supply = "vdd10"; @@ -351,10 +331,6 @@ static int exynos_pcie_probe(struct platform_device *pdev) if (ret) return ret; - ret = exynos_pcie_init_clk_resources(ep); - if (ret) - return ret; - ret = regulator_bulk_enable(ARRAY_SIZE(ep->supplies), ep->supplies); if (ret) return ret; @@ -369,8 +345,8 @@ static int exynos_pcie_probe(struct platform_device *pdev) fail_probe: phy_exit(ep->phy); - exynos_pcie_deinit_clk_resources(ep); regulator_bulk_disable(ARRAY_SIZE(ep->supplies), ep->supplies); + exynos_pcie_deinit_clk_resources(ep); return ret; } -- 2.17.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next parent reply other threads:[~2023-10-09 7:42 UTC|newest] Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top [not found] <CGME20231009062222epcas5p36768b75c13c7c79965b5863521361a64@epcas5p3.samsung.com> 2023-10-09 6:22 ` Shradha Todi [this message] 2023-10-09 6:22 ` [PATCH] PCI: exynos: Adapt to clk_bulk_* APIs Shradha Todi 2023-10-27 6:37 ` Shradha Todi 2023-10-27 6:37 ` Shradha Todi 2023-10-27 8:06 ` Krzysztof Kozlowski 2023-10-27 8:06 ` Krzysztof Kozlowski 2023-11-09 17:47 ` Alim Akhtar 2023-11-09 17:47 ` Alim Akhtar 2023-11-15 6:37 ` Shradha Todi 2023-11-15 6:37 ` Shradha Todi [not found] ` <20231027134849.GA23716@thinkpad> 2023-11-15 6:40 ` Shradha Todi 2023-11-15 6:40 ` Shradha Todi 2023-11-15 9:07 ` Marek Szyprowski 2023-11-15 9:07 ` Marek Szyprowski [not found] ` <bbcee6bf-850b-43c0-a5d3-9d5a66b24dc5@samsung.com> 2023-11-16 6:29 ` 'Manivannan Sadhasivam' 2023-11-16 6:29 ` 'Manivannan Sadhasivam'
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