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path: root/drivers/pci/host/pcie-rockchip.c
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Diffstat (limited to 'drivers/pci/host/pcie-rockchip.c')
-rw-r--r--drivers/pci/host/pcie-rockchip.c426
1 files changed, 282 insertions, 144 deletions
diff --git a/drivers/pci/host/pcie-rockchip.c b/drivers/pci/host/pcie-rockchip.c
index 7bb9870f6d8c..9051c6c8fea4 100644
--- a/drivers/pci/host/pcie-rockchip.c
+++ b/drivers/pci/host/pcie-rockchip.c
@@ -6,7 +6,7 @@
* Author: Shawn Lin <shawn.lin@rock-chips.com>
* Wenrui Li <wenrui.li@rock-chips.com>
*
- * Bits taken from Synopsys Designware Host controller driver and
+ * Bits taken from Synopsys DesignWare Host controller driver and
* ARM PCI Host generic driver.
*
* This program is free software: you can redistribute it and/or modify
@@ -15,6 +15,7 @@
* (at your option) any later version.
*/
+#include <linux/bitrev.h>
#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/gpio/consumer.h>
@@ -47,6 +48,7 @@
#define HIWORD_UPDATE_BIT(val) HIWORD_UPDATE(val, val)
#define ENCODE_LANES(x) ((((x) >> 1) & 3) << 4)
+#define MAX_LANE_NUM 4
#define PCIE_CLIENT_BASE 0x0
#define PCIE_CLIENT_CONFIG (PCIE_CLIENT_BASE + 0x00)
@@ -111,6 +113,9 @@
#define PCIE_CORE_TXCREDIT_CFG1_MUI_SHIFT 16
#define PCIE_CORE_TXCREDIT_CFG1_MUI_ENCODE(x) \
(((x) >> 3) << PCIE_CORE_TXCREDIT_CFG1_MUI_SHIFT)
+#define PCIE_CORE_LANE_MAP (PCIE_CORE_CTRL_MGMT_BASE + 0x200)
+#define PCIE_CORE_LANE_MAP_MASK 0x0000000f
+#define PCIE_CORE_LANE_MAP_REVERSE BIT(16)
#define PCIE_CORE_INT_STATUS (PCIE_CORE_CTRL_MGMT_BASE + 0x20c)
#define PCIE_CORE_INT_PRFPE BIT(0)
#define PCIE_CORE_INT_CRFPE BIT(1)
@@ -210,7 +215,8 @@
struct rockchip_pcie {
void __iomem *reg_base; /* DT axi-base */
void __iomem *apb_base; /* DT apb-base */
- struct phy *phy;
+ bool legacy_phy;
+ struct phy *phys[MAX_LANE_NUM];
struct reset_control *core_rst;
struct reset_control *mgmt_rst;
struct reset_control *mgmt_sticky_rst;
@@ -222,11 +228,13 @@ struct rockchip_pcie {
struct clk *aclk_perf_pcie;
struct clk *hclk_pcie;
struct clk *clk_pcie_pm;
+ struct regulator *vpcie12v; /* 12V power supply */
struct regulator *vpcie3v3; /* 3.3V power supply */
struct regulator *vpcie1v8; /* 1.8V power supply */
struct regulator *vpcie0v9; /* 0.9V power supply */
struct gpio_desc *ep_gpio;
u32 lanes;
+ u8 lanes_map;
u8 root_bus_nr;
int link_gen;
struct device *dev;
@@ -299,6 +307,24 @@ static int rockchip_pcie_valid_device(struct rockchip_pcie *rockchip,
return 1;
}
+static u8 rockchip_pcie_lane_map(struct rockchip_pcie *rockchip)
+{
+ u32 val;
+ u8 map;
+
+ if (rockchip->legacy_phy)
+ return GENMASK(MAX_LANE_NUM - 1, 0);
+
+ val = rockchip_pcie_read(rockchip, PCIE_CORE_LANE_MAP);
+ map = val & PCIE_CORE_LANE_MAP_MASK;
+
+ /* The link may be using a reverse-indexed mapping. */
+ if (val & PCIE_CORE_LANE_MAP_REVERSE)
+ map = bitrev8(map) >> 4;
+
+ return map;
+}
+
static int rockchip_pcie_rd_own_conf(struct rockchip_pcie *rockchip,
int where, int size, u32 *val)
{
@@ -514,10 +540,10 @@ static void rockchip_pcie_set_power_limit(struct rockchip_pcie *rockchip)
static int rockchip_pcie_init_port(struct rockchip_pcie *rockchip)
{
struct device *dev = rockchip->dev;
- int err;
+ int err, i;
u32 status;
- gpiod_set_value(rockchip->ep_gpio, 0);
+ gpiod_set_value_cansleep(rockchip->ep_gpio, 0);
err = reset_control_assert(rockchip->aclk_rst);
if (err) {
@@ -537,34 +563,36 @@ static int rockchip_pcie_init_port(struct rockchip_pcie *rockchip)
return err;
}
- err = phy_init(rockchip->phy);
- if (err < 0) {
- dev_err(dev, "fail to init phy, err %d\n", err);
- return err;
+ for (i = 0; i < MAX_LANE_NUM; i++) {
+ err = phy_init(rockchip->phys[i]);
+ if (err) {
+ dev_err(dev, "init phy%d err %d\n", i, err);
+ goto err_exit_phy;
+ }
}
err = reset_control_assert(rockchip->core_rst);
if (err) {
dev_err(dev, "assert core_rst err %d\n", err);
- return err;
+ goto err_exit_phy;
}
err = reset_control_assert(rockchip->mgmt_rst);
if (err) {
dev_err(dev, "assert mgmt_rst err %d\n", err);
- return err;
+ goto err_exit_phy;
}
err = reset_control_assert(rockchip->mgmt_sticky_rst);
if (err) {
dev_err(dev, "assert mgmt_sticky_rst err %d\n", err);
- return err;
+ goto err_exit_phy;
}
err = reset_control_assert(rockchip->pipe_rst);
if (err) {
dev_err(dev, "assert pipe_rst err %d\n", err);
- return err;
+ goto err_exit_phy;
}
udelay(10);
@@ -572,19 +600,19 @@ static int rockchip_pcie_init_port(struct rockchip_pcie *rockchip)
err = reset_control_deassert(rockchip->pm_rst);
if (err) {
dev_err(dev, "deassert pm_rst err %d\n", err);
- return err;
+ goto err_exit_phy;
}
err = reset_control_deassert(rockchip->aclk_rst);
if (err) {
dev_err(dev, "deassert aclk_rst err %d\n", err);
- return err;
+ goto err_exit_phy;
}
err = reset_control_deassert(rockchip->pclk_rst);
if (err) {
dev_err(dev, "deassert pclk_rst err %d\n", err);
- return err;
+ goto err_exit_phy;
}
if (rockchip->link_gen == 2)
@@ -602,10 +630,12 @@ static int rockchip_pcie_init_port(struct rockchip_pcie *rockchip)
PCIE_CLIENT_MODE_RC,
PCIE_CLIENT_CONFIG);
- err = phy_power_on(rockchip->phy);
- if (err) {
- dev_err(dev, "fail to power on phy, err %d\n", err);
- return err;
+ for (i = 0; i < MAX_LANE_NUM; i++) {
+ err = phy_power_on(rockchip->phys[i]);
+ if (err) {
+ dev_err(dev, "power on phy%d err %d\n", i, err);
+ goto err_power_off_phy;
+ }
}
/*
@@ -615,25 +645,25 @@ static int rockchip_pcie_init_port(struct rockchip_pcie *rockchip)
err = reset_control_deassert(rockchip->mgmt_sticky_rst);
if (err) {
dev_err(dev, "deassert mgmt_sticky_rst err %d\n", err);
- return err;
+ goto err_power_off_phy;
}
err = reset_control_deassert(rockchip->core_rst);
if (err) {
dev_err(dev, "deassert core_rst err %d\n", err);
- return err;
+ goto err_power_off_phy;
}
err = reset_control_deassert(rockchip->mgmt_rst);
if (err) {
dev_err(dev, "deassert mgmt_rst err %d\n", err);
- return err;
+ goto err_power_off_phy;
}
err = reset_control_deassert(rockchip->pipe_rst);
if (err) {
dev_err(dev, "deassert pipe_rst err %d\n", err);
- return err;
+ goto err_power_off_phy;
}
/* Fix the transmitted FTS count desired to exit from L0s. */
@@ -658,7 +688,7 @@ static int rockchip_pcie_init_port(struct rockchip_pcie *rockchip)
rockchip_pcie_write(rockchip, PCIE_CLIENT_LINK_TRAIN_ENABLE,
PCIE_CLIENT_CONFIG);
- gpiod_set_value(rockchip->ep_gpio, 1);
+ gpiod_set_value_cansleep(rockchip->ep_gpio, 1);
/* 500ms timeout value should be enough for Gen1/2 training */
err = readl_poll_timeout(rockchip->apb_base + PCIE_CLIENT_BASIC_STATUS1,
@@ -666,7 +696,7 @@ static int rockchip_pcie_init_port(struct rockchip_pcie *rockchip)
500 * USEC_PER_MSEC);
if (err) {
dev_err(dev, "PCIe link training gen1 timeout!\n");
- return -ETIMEDOUT;
+ goto err_power_off_phy;
}
if (rockchip->link_gen == 2) {
@@ -691,6 +721,15 @@ static int rockchip_pcie_init_port(struct rockchip_pcie *rockchip)
PCIE_CORE_PL_CONF_LANE_SHIFT);
dev_dbg(dev, "current link width is x%d\n", status);
+ /* Power off unused lane(s) */
+ rockchip->lanes_map = rockchip_pcie_lane_map(rockchip);
+ for (i = 0; i < MAX_LANE_NUM; i++) {
+ if (!(rockchip->lanes_map & BIT(i))) {
+ dev_dbg(dev, "idling lane %d\n", i);
+ phy_power_off(rockchip->phys[i]);
+ }
+ }
+
rockchip_pcie_write(rockchip, ROCKCHIP_VENDOR_ID,
PCIE_CORE_CONFIG_VENDOR);
rockchip_pcie_write(rockchip,
@@ -715,6 +754,26 @@ static int rockchip_pcie_init_port(struct rockchip_pcie *rockchip)
rockchip_pcie_write(rockchip, status, PCIE_RC_CONFIG_DCSR);
return 0;
+err_power_off_phy:
+ while (i--)
+ phy_power_off(rockchip->phys[i]);
+ i = MAX_LANE_NUM;
+err_exit_phy:
+ while (i--)
+ phy_exit(rockchip->phys[i]);
+ return err;
+}
+
+static void rockchip_pcie_deinit_phys(struct rockchip_pcie *rockchip)
+{
+ int i;
+
+ for (i = 0; i < MAX_LANE_NUM; i++) {
+ /* inactive lanes are already powered off */
+ if (rockchip->lanes_map & BIT(i))
+ phy_power_off(rockchip->phys[i]);
+ phy_exit(rockchip->phys[i]);
+ }
}
static irqreturn_t rockchip_pcie_subsys_irq_handler(int irq, void *arg)
@@ -853,6 +912,91 @@ static void rockchip_pcie_legacy_int_handler(struct irq_desc *desc)
chained_irq_exit(chip, desc);
}
+static int rockchip_pcie_get_phys(struct rockchip_pcie *rockchip)
+{
+ struct device *dev = rockchip->dev;
+ struct phy *phy;
+ char *name;
+ u32 i;
+
+ phy = devm_phy_get(dev, "pcie-phy");
+ if (!IS_ERR(phy)) {
+ rockchip->legacy_phy = true;
+ rockchip->phys[0] = phy;
+ dev_warn(dev, "legacy phy model is deprecated!\n");
+ return 0;
+ }
+
+ if (PTR_ERR(phy) == -EPROBE_DEFER)
+ return PTR_ERR(phy);
+
+ dev_dbg(dev, "missing legacy phy; search for per-lane PHY\n");
+
+ for (i = 0; i < MAX_LANE_NUM; i++) {
+ name = kasprintf(GFP_KERNEL, "pcie-phy-%u", i);
+ if (!name)
+ return -ENOMEM;
+
+ phy = devm_of_phy_get(dev, dev->of_node, name);
+ kfree(name);
+
+ if (IS_ERR(phy)) {
+ if (PTR_ERR(phy) != -EPROBE_DEFER)
+ dev_err(dev, "missing phy for lane %d: %ld\n",
+ i, PTR_ERR(phy));
+ return PTR_ERR(phy);
+ }
+
+ rockchip->phys[i] = phy;
+ }
+
+ return 0;
+}
+
+static int rockchip_pcie_setup_irq(struct rockchip_pcie *rockchip)
+{
+ int irq, err;
+ struct device *dev = rockchip->dev;
+ struct platform_device *pdev = to_platform_device(dev);
+
+ irq = platform_get_irq_byname(pdev, "sys");
+ if (irq < 0) {
+ dev_err(dev, "missing sys IRQ resource\n");
+ return irq;
+ }
+
+ err = devm_request_irq(dev, irq, rockchip_pcie_subsys_irq_handler,
+ IRQF_SHARED, "pcie-sys", rockchip);
+ if (err) {
+ dev_err(dev, "failed to request PCIe subsystem IRQ\n");
+ return err;
+ }
+
+ irq = platform_get_irq_byname(pdev, "legacy");
+ if (irq < 0) {
+ dev_err(dev, "missing legacy IRQ resource\n");
+ return irq;
+ }
+
+ irq_set_chained_handler_and_data(irq,
+ rockchip_pcie_legacy_int_handler,
+ rockchip);
+
+ irq = platform_get_irq_byname(pdev, "client");
+ if (irq < 0) {
+ dev_err(dev, "missing client IRQ resource\n");
+ return irq;
+ }
+
+ err = devm_request_irq(dev, irq, rockchip_pcie_client_irq_handler,
+ IRQF_SHARED, "pcie-client", rockchip);
+ if (err) {
+ dev_err(dev, "failed to request PCIe client IRQ\n");
+ return err;
+ }
+
+ return 0;
+}
/**
* rockchip_pcie_parse_dt - Parse Device Tree
@@ -866,7 +1010,6 @@ static int rockchip_pcie_parse_dt(struct rockchip_pcie *rockchip)
struct platform_device *pdev = to_platform_device(dev);
struct device_node *node = dev->of_node;
struct resource *regs;
- int irq;
int err;
regs = platform_get_resource_byname(pdev,
@@ -883,12 +1026,9 @@ static int rockchip_pcie_parse_dt(struct rockchip_pcie *rockchip)
if (IS_ERR(rockchip->apb_base))
return PTR_ERR(rockchip->apb_base);
- rockchip->phy = devm_phy_get(dev, "pcie-phy");
- if (IS_ERR(rockchip->phy)) {
- if (PTR_ERR(rockchip->phy) != -EPROBE_DEFER)
- dev_err(dev, "missing phy\n");
- return PTR_ERR(rockchip->phy);
- }
+ err = rockchip_pcie_get_phys(rockchip);
+ if (err)
+ return err;
rockchip->lanes = 1;
err = of_property_read_u32(node, "num-lanes", &rockchip->lanes);
@@ -903,49 +1043,50 @@ static int rockchip_pcie_parse_dt(struct rockchip_pcie *rockchip)
if (rockchip->link_gen < 0 || rockchip->link_gen > 2)
rockchip->link_gen = 2;
- rockchip->core_rst = devm_reset_control_get(dev, "core");
+ rockchip->core_rst = devm_reset_control_get_exclusive(dev, "core");
if (IS_ERR(rockchip->core_rst)) {
if (PTR_ERR(rockchip->core_rst) != -EPROBE_DEFER)
dev_err(dev, "missing core reset property in node\n");
return PTR_ERR(rockchip->core_rst);
}
- rockchip->mgmt_rst = devm_reset_control_get(dev, "mgmt");
+ rockchip->mgmt_rst = devm_reset_control_get_exclusive(dev, "mgmt");
if (IS_ERR(rockchip->mgmt_rst)) {
if (PTR_ERR(rockchip->mgmt_rst) != -EPROBE_DEFER)
dev_err(dev, "missing mgmt reset property in node\n");
return PTR_ERR(rockchip->mgmt_rst);
}
- rockchip->mgmt_sticky_rst = devm_reset_control_get(dev, "mgmt-sticky");
+ rockchip->mgmt_sticky_rst = devm_reset_control_get_exclusive(dev,
+ "mgmt-sticky");
if (IS_ERR(rockchip->mgmt_sticky_rst)) {
if (PTR_ERR(rockchip->mgmt_sticky_rst) != -EPROBE_DEFER)
dev_err(dev, "missing mgmt-sticky reset property in node\n");
return PTR_ERR(rockchip->mgmt_sticky_rst);
}
- rockchip->pipe_rst = devm_reset_control_get(dev, "pipe");
+ rockchip->pipe_rst = devm_reset_control_get_exclusive(dev, "pipe");
if (IS_ERR(rockchip->pipe_rst)) {
if (PTR_ERR(rockchip->pipe_rst) != -EPROBE_DEFER)
dev_err(dev, "missing pipe reset property in node\n");
return PTR_ERR(rockchip->pipe_rst);
}
- rockchip->pm_rst = devm_reset_control_get(dev, "pm");
+ rockchip->pm_rst = devm_reset_control_get_exclusive(dev, "pm");
if (IS_ERR(rockchip->pm_rst)) {
if (PTR_ERR(rockchip->pm_rst) != -EPROBE_DEFER)
dev_err(dev, "missing pm reset property in node\n");
return PTR_ERR(rockchip->pm_rst);
}
- rockchip->pclk_rst = devm_reset_control_get(dev, "pclk");
+ rockchip->pclk_rst = devm_reset_control_get_exclusive(dev, "pclk");
if (IS_ERR(rockchip->pclk_rst)) {
if (PTR_ERR(rockchip->pclk_rst) != -EPROBE_DEFER)
dev_err(dev, "missing pclk reset property in node\n");
return PTR_ERR(rockchip->pclk_rst);
}
- rockchip->aclk_rst = devm_reset_control_get(dev, "aclk");
+ rockchip->aclk_rst = devm_reset_control_get_exclusive(dev, "aclk");
if (IS_ERR(rockchip->aclk_rst)) {
if (PTR_ERR(rockchip->aclk_rst) != -EPROBE_DEFER)
dev_err(dev, "missing aclk reset property in node\n");
@@ -982,40 +1123,15 @@ static int rockchip_pcie_parse_dt(struct rockchip_pcie *rockchip)
return PTR_ERR(rockchip->clk_pcie_pm);
}
- irq = platform_get_irq_byname(pdev, "sys");
- if (irq < 0) {
- dev_err(dev, "missing sys IRQ resource\n");
- return -EINVAL;
- }
-
- err = devm_request_irq(dev, irq, rockchip_pcie_subsys_irq_handler,
- IRQF_SHARED, "pcie-sys", rockchip);
- if (err) {
- dev_err(dev, "failed to request PCIe subsystem IRQ\n");
+ err = rockchip_pcie_setup_irq(rockchip);
+ if (err)
return err;
- }
-
- irq = platform_get_irq_byname(pdev, "legacy");
- if (irq < 0) {
- dev_err(dev, "missing legacy IRQ resource\n");
- return -EINVAL;
- }
-
- irq_set_chained_handler_and_data(irq,
- rockchip_pcie_legacy_int_handler,
- rockchip);
-
- irq = platform_get_irq_byname(pdev, "client");
- if (irq < 0) {
- dev_err(dev, "missing client IRQ resource\n");
- return -EINVAL;
- }
- err = devm_request_irq(dev, irq, rockchip_pcie_client_irq_handler,
- IRQF_SHARED, "pcie-client", rockchip);
- if (err) {
- dev_err(dev, "failed to request PCIe client IRQ\n");
- return err;
+ rockchip->vpcie12v = devm_regulator_get_optional(dev, "vpcie12v");
+ if (IS_ERR(rockchip->vpcie12v)) {
+ if (PTR_ERR(rockchip->vpcie12v) == -EPROBE_DEFER)
+ return -EPROBE_DEFER;
+ dev_info(dev, "no vpcie12v regulator found\n");
}
rockchip->vpcie3v3 = devm_regulator_get_optional(dev, "vpcie3v3");
@@ -1047,11 +1163,19 @@ static int rockchip_pcie_set_vpcie(struct rockchip_pcie *rockchip)
struct device *dev = rockchip->dev;
int err;
+ if (!IS_ERR(rockchip->vpcie12v)) {
+ err = regulator_enable(rockchip->vpcie12v);
+ if (err) {
+ dev_err(dev, "fail to enable vpcie12v regulator\n");
+ goto err_out;
+ }
+ }
+
if (!IS_ERR(rockchip->vpcie3v3)) {
err = regulator_enable(rockchip->vpcie3v3);
if (err) {
dev_err(dev, "fail to enable vpcie3v3 regulator\n");
- goto err_out;
+ goto err_disable_12v;
}
}
@@ -1079,6 +1203,9 @@ err_disable_1v8:
err_disable_3v3:
if (!IS_ERR(rockchip->vpcie3v3))
regulator_disable(rockchip->vpcie3v3);
+err_disable_12v:
+ if (!IS_ERR(rockchip->vpcie12v))
+ regulator_disable(rockchip->vpcie12v);
err_out:
return err;
}
@@ -1116,7 +1243,7 @@ static int rockchip_pcie_init_irq_domain(struct rockchip_pcie *rockchip)
return -EINVAL;
}
- rockchip->irq_domain = irq_domain_add_linear(intc, 4,
+ rockchip->irq_domain = irq_domain_add_linear(intc, PCI_NUM_INTX,
&intx_domain_ops, rockchip);
if (!rockchip->irq_domain) {
dev_err(dev, "failed to get a INTx IRQ domain\n");
@@ -1270,6 +1397,56 @@ static int rockchip_pcie_wait_l2(struct rockchip_pcie *rockchip)
return 0;
}
+static int rockchip_pcie_enable_clocks(struct rockchip_pcie *rockchip)
+{
+ struct device *dev = rockchip->dev;
+ int err;
+
+ err = clk_prepare_enable(rockchip->aclk_pcie);
+ if (err) {
+ dev_err(dev, "unable to enable aclk_pcie clock\n");
+ return err;
+ }
+
+ err = clk_prepare_enable(rockchip->aclk_perf_pcie);
+ if (err) {
+ dev_err(dev, "unable to enable aclk_perf_pcie clock\n");
+ goto err_aclk_perf_pcie;
+ }
+
+ err = clk_prepare_enable(rockchip->hclk_pcie);
+ if (err) {
+ dev_err(dev, "unable to enable hclk_pcie clock\n");
+ goto err_hclk_pcie;
+ }
+
+ err = clk_prepare_enable(rockchip->clk_pcie_pm);
+ if (err) {
+ dev_err(dev, "unable to enable clk_pcie_pm clock\n");
+ goto err_clk_pcie_pm;
+ }
+
+ return 0;
+
+err_clk_pcie_pm:
+ clk_disable_unprepare(rockchip->hclk_pcie);
+err_hclk_pcie:
+ clk_disable_unprepare(rockchip->aclk_perf_pcie);
+err_aclk_perf_pcie:
+ clk_disable_unprepare(rockchip->aclk_pcie);
+ return err;
+}
+
+static void rockchip_pcie_disable_clocks(void *data)
+{
+ struct rockchip_pcie *rockchip = data;
+
+ clk_disable_unprepare(rockchip->clk_pcie_pm);
+ clk_disable_unprepare(rockchip->hclk_pcie);
+ clk_disable_unprepare(rockchip->aclk_perf_pcie);
+ clk_disable_unprepare(rockchip->aclk_pcie);
+}
+
static int __maybe_unused rockchip_pcie_suspend_noirq(struct device *dev)
{
struct rockchip_pcie *rockchip = dev_get_drvdata(dev);
@@ -1286,13 +1463,9 @@ static int __maybe_unused rockchip_pcie_suspend_noirq(struct device *dev)
return ret;
}
- phy_power_off(rockchip->phy);
- phy_exit(rockchip->phy);
+ rockchip_pcie_deinit_phys(rockchip);
- clk_disable_unprepare(rockchip->clk_pcie_pm);
- clk_disable_unprepare(rockchip->hclk_pcie);
- clk_disable_unprepare(rockchip->aclk_perf_pcie);
- clk_disable_unprepare(rockchip->aclk_pcie);
+ rockchip_pcie_disable_clocks(rockchip);
if (!IS_ERR(rockchip->vpcie0v9))
regulator_disable(rockchip->vpcie0v9);
@@ -1313,21 +1486,9 @@ static int __maybe_unused rockchip_pcie_resume_noirq(struct device *dev)
}
}
- err = clk_prepare_enable(rockchip->clk_pcie_pm);
+ err = rockchip_pcie_enable_clocks(rockchip);
if (err)
- goto err_pcie_pm;
-
- err = clk_prepare_enable(rockchip->hclk_pcie);
- if (err)
- goto err_hclk_pcie;
-
- err = clk_prepare_enable(rockchip->aclk_perf_pcie);
- if (err)
- goto err_aclk_perf_pcie;
-
- err = clk_prepare_enable(rockchip->aclk_pcie);
- if (err)
- goto err_aclk_pcie;
+ goto err_disable_0v9;
err = rockchip_pcie_init_port(rockchip);
if (err)
@@ -1335,7 +1496,7 @@ static int __maybe_unused rockchip_pcie_resume_noirq(struct device *dev)
err = rockchip_pcie_cfg_atu(rockchip);
if (err)
- goto err_pcie_resume;
+ goto err_err_deinit_port;
/* Need this to enter L1 again */
rockchip_pcie_update_txcredit_mui(rockchip);
@@ -1343,15 +1504,13 @@ static int __maybe_unused rockchip_pcie_resume_noirq(struct device *dev)
return 0;
+err_err_deinit_port:
+ rockchip_pcie_deinit_phys(rockchip);
err_pcie_resume:
- clk_disable_unprepare(rockchip->aclk_pcie);
-err_aclk_pcie:
- clk_disable_unprepare(rockchip->aclk_perf_pcie);
-err_aclk_perf_pcie:
- clk_disable_unprepare(rockchip->hclk_pcie);
-err_hclk_pcie:
- clk_disable_unprepare(rockchip->clk_pcie_pm);
-err_pcie_pm:
+ rockchip_pcie_disable_clocks(rockchip);
+err_disable_0v9:
+ if (!IS_ERR(rockchip->vpcie0v9))
+ regulator_disable(rockchip->vpcie0v9);
return err;
}
@@ -1385,29 +1544,9 @@ static int rockchip_pcie_probe(struct platform_device *pdev)
if (err)
return err;
- err = clk_prepare_enable(rockchip->aclk_pcie);
- if (err) {
- dev_err(dev, "unable to enable aclk_pcie clock\n");
- goto err_aclk_pcie;
- }
-
- err = clk_prepare_enable(rockchip->aclk_perf_pcie);
- if (err) {
- dev_err(dev, "unable to enable aclk_perf_pcie clock\n");
- goto err_aclk_perf_pcie;
- }
-
- err = clk_prepare_enable(rockchip->hclk_pcie);
- if (err) {
- dev_err(dev, "unable to enable hclk_pcie clock\n");
- goto err_hclk_pcie;
- }
-
- err = clk_prepare_enable(rockchip->clk_pcie_pm);
- if (err) {
- dev_err(dev, "unable to enable hclk_pcie clock\n");
- goto err_pcie_pm;
- }
+ err = rockchip_pcie_enable_clocks(rockchip);
+ if (err)
+ return err;
err = rockchip_pcie_set_vpcie(rockchip);
if (err) {
@@ -1423,12 +1562,12 @@ static int rockchip_pcie_probe(struct platform_device *pdev)
err = rockchip_pcie_init_irq_domain(rockchip);
if (err < 0)
- goto err_vpcie;
+ goto err_deinit_port;
err = of_pci_get_host_bridge_resources(dev->of_node, 0, 0xff,
&res, &io_base);
if (err)
- goto err_vpcie;
+ goto err_remove_irq_domain;
err = devm_request_pci_bus_resources(dev, &res);
if (err)
@@ -1466,12 +1605,12 @@ static int rockchip_pcie_probe(struct platform_device *pdev)
err = rockchip_pcie_cfg_atu(rockchip);
if (err)
- goto err_free_res;
+ goto err_unmap_iospace;
rockchip->msg_region = devm_ioremap(dev, rockchip->msg_bus_addr, SZ_1M);
if (!rockchip->msg_region) {
err = -ENOMEM;
- goto err_free_res;
+ goto err_unmap_iospace;
}
list_splice_init(&res, &bridge->windows);
@@ -1484,7 +1623,7 @@ static int rockchip_pcie_probe(struct platform_device *pdev)
err = pci_scan_root_bus_bridge(bridge);
if (err < 0)
- goto err_free_res;
+ goto err_unmap_iospace;
bus = bridge->bus;
@@ -1498,9 +1637,17 @@ static int rockchip_pcie_probe(struct platform_device *pdev)
pci_bus_add_devices(bus);
return 0;
+err_unmap_iospace:
+ pci_unmap_iospace(rockchip->io);
err_free_res:
pci_free_resource_list(&res);
+err_remove_irq_domain:
+ irq_domain_remove(rockchip->irq_domain);
+err_deinit_port:
+ rockchip_pcie_deinit_phys(rockchip);
err_vpcie:
+ if (!IS_ERR(rockchip->vpcie12v))
+ regulator_disable(rockchip->vpcie12v);
if (!IS_ERR(rockchip->vpcie3v3))
regulator_disable(rockchip->vpcie3v3);
if (!IS_ERR(rockchip->vpcie1v8))
@@ -1508,14 +1655,7 @@ err_vpcie:
if (!IS_ERR(rockchip->vpcie0v9))
regulator_disable(rockchip->vpcie0v9);
err_set_vpcie:
- clk_disable_unprepare(rockchip->clk_pcie_pm);
-err_pcie_pm:
- clk_disable_unprepare(rockchip->hclk_pcie);
-err_hclk_pcie:
- clk_disable_unprepare(rockchip->aclk_perf_pcie);
-err_aclk_perf_pcie:
- clk_disable_unprepare(rockchip->aclk_pcie);
-err_aclk_pcie:
+ rockchip_pcie_disable_clocks(rockchip);
return err;
}
@@ -1529,14 +1669,12 @@ static int rockchip_pcie_remove(struct platform_device *pdev)
pci_unmap_iospace(rockchip->io);
irq_domain_remove(rockchip->irq_domain);
- phy_power_off(rockchip->phy);
- phy_exit(rockchip->phy);
+ rockchip_pcie_deinit_phys(rockchip);
- clk_disable_unprepare(rockchip->clk_pcie_pm);
- clk_disable_unprepare(rockchip->hclk_pcie);
- clk_disable_unprepare(rockchip->aclk_perf_pcie);
- clk_disable_unprepare(rockchip->aclk_pcie);
+ rockchip_pcie_disable_clocks(rockchip);
+ if (!IS_ERR(rockchip->vpcie12v))
+ regulator_disable(rockchip->vpcie12v);
if (!IS_ERR(rockchip->vpcie3v3))
regulator_disable(rockchip->vpcie3v3);
if (!IS_ERR(rockchip->vpcie1v8))
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-18 06:42:58 +0300