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Message-ID: <20170616211106.GF11129@bhelgaas-glaptop.roam.corp.google.com>
Date: Fri, 16 Jun 2017 16:11:06 -0500
From: Bjorn Helgaas <helgaas@...nel.org>
To: Guodong Xu <guodong.xu@...aro.org>
Cc: Arnd Bergmann <arnd@...db.de>, kbuild test robot <lkp@...el.com>,
Xiaowei Song <songxiaowei@...ilicon.com>, kbuild-all@...org,
Bjorn Helgaas <bhelgaas@...gle.com>, Kishon <kishon@...com>,
Jingoo Han <jingoohan1@...il.com>,
Tomasz Nowicki <tn@...ihalf.com>,
Keith Busch <keith.busch@...el.com>,
Niklas Cassel <niklas.cassel@...s.com>,
Duc Dang <dhdang@....com>,
"liudongdong (C)" <liudongdong3@...wei.com>,
Gabriele Paoloni <gabriele.paoloni@...wei.com>,
Rob Herring <robh+dt@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Catalin Marinas <catalin.marinas@....com>,
Will Deacon <will.deacon@....com>, chenyao11@...wei.com,
Chen Feng <puck.chen@...ilicon.com>,
Wangbinghui <wangbinghui@...ilicon.com>,
Suzhuangluan <suzhuangluan@...ilicon.com>,
linux-pci <linux-pci@...r.kernel.org>,
devicetree@...r.kernel.org,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v9 2/4] arm64: dts: hisi: add kirin pcie node
On Tue, Jun 06, 2017 at 07:19:53PM +0800, Guodong Xu wrote:
> Hi, Arnd
>
> On Tue, Jun 6, 2017 at 5:23 PM, Arnd Bergmann <arnd@...db.de> wrote:
> > On Sun, Jun 4, 2017 at 2:03 AM, kbuild test robot <lkp@...el.com> wrote:
> >> Hi Xiaowei,
> >>
> >> [auto build test ERROR on pci/next]
> >> [also build test ERROR on v4.12-rc3 next-20170602]
> >> [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
> >>
> >> url: https://github.com/0day-ci/linux/commits/Xiaowei-Song/add-PCIe-driver-for-Kirin-PCIe/20170531-182118
> >> base: https://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git next
> >> config: arm64-allnoconfig (attached as .config)
> >> compiler: aarch64-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705
> >> reproduce:
> >> wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
> >> chmod +x ~/bin/make.cross
> >> # save the attached .config to linux build tree
> >> make.cross ARCH=arm64
> >>
> >> All errors (new ones prefixed by >>):
> >>
> >>>> Error: arch/arm64/boot/dts/hisilicon/hi3660.dtsi:180.24-25 syntax error
> >>>> FATAL ERROR: Unable to parse input tree
> >
> > We keep getting the build errors for patch submissions. Obviously the patch is
> > still broken and can't be merged as-is. What is the plan for merging the series?
> >
>
> This dts patch can be applied to dts series [1]. For upstream review
> purpose, hi3660-hikey960 dts patches, which don't have a related
> driver changes, are sent in [1]. Other patches, which need driver
> changes, like this one, are sent together with driver.
>
> Patchset [1] is now at its v2 review. Rob Herring already gave his ACK
> for some of them in v1. Hopefully I can get more ACK for remaining
> ones, and make them ready for v4.13 merging window.
>
> [1], http://www.spinics.net/lists/devicetree/msg178303.html
I don't know how you want to deal with the DTS build failure. From a
PCI perspective, I think I could apply patches 1 and 3 pretty easily
by themselves.
If/when you post these again, please incorporate the following
incremental diff to clean up various whitespace and capitalization
nits (these are spread across several of your patches).
diff --git a/Documentation/devicetree/bindings/pci/kirin-pcie.txt b/Documentation/devicetree/bindings/pci/kirin-pcie.txt
index 68ffa0fbcd73..20357d840af1 100644
--- a/Documentation/devicetree/bindings/pci/kirin-pcie.txt
+++ b/Documentation/devicetree/bindings/pci/kirin-pcie.txt
@@ -24,8 +24,8 @@ Example based on kirin960:
pcie@...00000 {
compatible = "hisilicon,kirin-pcie";
- reg = <0x0 0xf4000000 0x0 0x1000>, <0x0 0xff3fe000 0x0 0x1000>,
- <0x0 0xf3f20000 0x0 0x40000>, <0x0 0xF4000000 0 0x2000>;
+ reg = <0x0 0xf4000000 0x0 0x1000>, <0x0 0xff3fe000 0x0 0x1000>,
+ <0x0 0xf3f20000 0x0 0x40000>, <0x0 0xf4000000 0x0 0x2000>;
reg-names = "dbi","apb","phy", "config";
bus-range = <0x0 0x1>;
#address-cells = <3>;
@@ -46,5 +46,5 @@ Example based on kirin960:
<&crg_ctrl HI3660_ACLK_GATE_PCIE>;
clock-names = "pcie_phy_ref", "pcie_aux",
"pcie_apb_phy", "pcie_apb_sys", "pcie_aclk";
- reset-gpios = <&gpio11 1 0 >;
+ reset-gpios = <&gpio11 1 0>;
};
diff --git a/arch/arm64/boot/dts/hisilicon/hi3660.dtsi b/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
index e8feb2fb4d53..7bc89baa40ba 100644
--- a/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
+++ b/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
@@ -159,12 +159,12 @@
pcie@...00000 {
compatible = "hisilicon,kirin960-pcie";
- reg = <0x0 0xf4000000 0x0 0x1000>,
- <0x0 0xff3fe000 0x0 0x1000>,
+ reg = <0x0 0xf4000000 0x0 0x1000>,
+ <0x0 0xff3fe000 0x0 0x1000>,
<0x0 0xf3f20000 0x0 0x40000>,
- <0x0 0xF5000000 0x0 0x2000>;
+ <0x0 0xf5000000 0x0 0x2000>;
reg-names = "dbi", "apb", "phy", "config";
- bus-range = <0x0 0x1>;
+ bus-range = <0x0 0x1>;
#address-cells = <3>;
#size-cells = <2>;
device_type = "pci";
@@ -173,7 +173,7 @@
num-lanes = <1>;
#interrupt-cells = <1>;
interrupt-map-mask = <0xf800 0 0 7>;
- interrupt-map = <0x0 0 0 1 &gic 0 0 0 282 4>,
+ interrupt-map = <0x0 0 0 1 &gic 0 0 0 282 4>,
<0x0 0 0 2 &gic 0 0 0 283 4>,
<0x0 0 0 3 &gic 0 0 0 284 4>,
<0x0 0 0 4 &gic 0 0 0 285 4>;
@@ -183,8 +183,9 @@
<&crg_ctrl HI3660_PCLK_GATE_PCIE_SYS>,
<&crg_ctrl HI3660_ACLK_GATE_PCIE>;
clock-names = "pcie_phy_ref", "pcie_aux",
- "pcie_apb_phy", "pcie_apb_sys", "pcie_aclk";
- reset-gpios = <&gpio11 1 0 >;
+ "pcie_apb_phy", "pcie_apb_sys",
+ "pcie_aclk";
+ reset-gpios = <&gpio11 1 0>;
status = "ok";
};
};
diff --git a/drivers/pci/dwc/pcie-kirin.c b/drivers/pci/dwc/pcie-kirin.c
index f63e6548efae..41520dd1d5e5 100644
--- a/drivers/pci/dwc/pcie-kirin.c
+++ b/drivers/pci/dwc/pcie-kirin.c
@@ -35,8 +35,8 @@
#define REF_CLK_FREQ 100000000
/* PCIe ELBI registers */
-#define SOC_PCIECTRL_CTRL0_ADDR 0x000
-#define SOC_PCIECTRL_CTRL1_ADDR 0x004
+#define SOC_PCIECTRL_CTRL0_ADDR 0x000
+#define SOC_PCIECTRL_CTRL1_ADDR 0x004
#define SOC_PCIEPHY_CTRL2_ADDR 0x008
#define SOC_PCIEPHY_CTRL3_ADDR 0x00c
#define PCIE_ELBI_SLV_DBI_ENABLE (0x1 << 21)
@@ -48,30 +48,30 @@
#define PCIE_APB_PHY_STATUS0 0x400
#define PCIE_LINKUP_ENABLE (0x8020)
#define PCIE_LTSSM_ENABLE_BIT (0x1 << 11)
-#define PIPE_CLK_STABLE (0x1 << 19)
+#define PIPE_CLK_STABLE (0x1 << 19)
#define PIPE_CLK_MAX_TRY_TIMES 10
-#define PHY_REF_PAD_BIT (0x1 << 8)
+#define PHY_REF_PAD_BIT (0x1 << 8)
#define PHY_PWR_DOWN_BIT (0x1 << 22)
-#define PHY_RST_ACK_BIT (0x1 << 16)
+#define PHY_RST_ACK_BIT (0x1 << 16)
/* info located in sysctrl */
#define SCTRL_PCIE_CMOS_OFFSET 0x60
#define SCTRL_PCIE_CMOS_BIT 0x10
#define SCTRL_PCIE_ISO_OFFSET 0x44
#define SCTRL_PCIE_ISO_BIT 0x30
-#define SCTRL_PCIE_HPCLK_OFFSET 0x190
+#define SCTRL_PCIE_HPCLK_OFFSET 0x190
#define SCTRL_PCIE_HPCLK_BIT 0x184000
#define SCTRL_PCIE_OE_OFFSET 0x14a
-#define PCIE_DEBOUNCE_PARAM 0xF0F400
+#define PCIE_DEBOUNCE_PARAM 0xf0f400
#define PCIE_OE_BYPASS (0x3 << 28)
/* peri_crg ctrl */
#define CRGCTRL_PCIE_ASSERT_OFFSET 0x88
-#define CRGCTRL_PCIE_ASSERT_BIT 0x8c000000
+#define CRGCTRL_PCIE_ASSERT_BIT 0x8c000000
/* Time for delay */
-#define REF_2_PERST_MIN 20000
-#define REF_2_PERST_MAX 25000
+#define REF_2_PERST_MIN 20000
+#define REF_2_PERST_MAX 25000
#define PERST_2_ACCESS_MIN 10000
#define PERST_2_ACCESS_MAX 12000
#define LINK_WAIT_MIN 900
@@ -80,22 +80,22 @@
#define PIPE_CLK_WAIT_MAX 600
struct kirin_pcie {
- struct dw_pcie *pci;
- void __iomem *apb_base;
- void __iomem *phy_base;
- struct regmap *crgctrl;
- struct regmap *sysctrl;
- struct clk *apb_sys_clk;
- struct clk *apb_phy_clk;
- struct clk *phy_ref_clk;
- struct clk *pcie_aclk;
- struct clk *pcie_aux_clk;
- int gpio_id_reset;
+ struct dw_pcie *pci;
+ void __iomem *apb_base;
+ void __iomem *phy_base;
+ struct regmap *crgctrl;
+ struct regmap *sysctrl;
+ struct clk *apb_sys_clk;
+ struct clk *apb_phy_clk;
+ struct clk *phy_ref_clk;
+ struct clk *pcie_aclk;
+ struct clk *pcie_aux_clk;
+ int gpio_id_reset;
};
/* Registers in PCIeCTRL */
static inline void kirin_apb_ctrl_writel(struct kirin_pcie *kirin_pcie,
- u32 val, u32 reg)
+ u32 val, u32 reg)
{
writel(val, kirin_pcie->apb_base + reg);
}
@@ -107,7 +107,7 @@ static inline u32 kirin_apb_ctrl_readl(struct kirin_pcie *kirin_pcie, u32 reg)
/* Registers in PCIePHY */
static inline void kirin_apb_phy_writel(struct kirin_pcie *kirin_pcie,
- u32 val, u32 reg)
+ u32 val, u32 reg)
{
writel(val, kirin_pcie->phy_base + reg);
}
@@ -118,7 +118,7 @@ static inline u32 kirin_apb_phy_readl(struct kirin_pcie *kirin_pcie, u32 reg)
}
static long kirin_pcie_get_clk(struct kirin_pcie *kirin_pcie,
- struct platform_device *pdev)
+ struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
@@ -146,7 +146,7 @@ static long kirin_pcie_get_clk(struct kirin_pcie *kirin_pcie,
}
static long kirin_pcie_get_resource(struct kirin_pcie *kirin_pcie,
- struct platform_device *pdev)
+ struct platform_device *pdev)
{
struct resource *apb;
struct resource *phy;
@@ -184,7 +184,6 @@ static long kirin_pcie_get_resource(struct kirin_pcie *kirin_pcie,
static int kirin_pcie_phy_init(struct kirin_pcie *kirin_pcie)
{
u32 reg_val;
- u32 time = PIPE_CLK_MAX_TRY_TIMES;
reg_val = kirin_apb_phy_readl(kirin_pcie, PCIE_APB_PHY_CTRL1);
reg_val &= ~PHY_REF_PAD_BIT;
@@ -459,7 +458,7 @@ static int kirin_pcie_probe(struct platform_device *pdev)
int ret;
if (!dev->of_node) {
- dev_err(&pdev->dev, "NULL node\n");
+ dev_err(dev, "NULL node\n");
return -EINVAL;
}
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