* [PATCH v2 0/5] PCI: xilinx: Cleanups
@ 2016-10-12 13:10 Bjorn Helgaas
2016-10-12 13:10 ` [PATCH v2 1/5] PCI: xilinx: Add local struct device pointers Bjorn Helgaas
` (5 more replies)
0 siblings, 6 replies; 7+ messages in thread
From: Bjorn Helgaas @ 2016-10-12 13:10 UTC (permalink / raw)
To: Michal Simek, Sören Brinkmann; +Cc: linux-pci
- Add local "dev" pointers to reduce repetition of things like
"&pdev->dev".
- Remove platform drvdata because it appears unused (we called
platform_set_drvdata() but not platform_get_drvdata()).
- Remove unused xilinx_pcie_assign_msi() argument.
Nothing here should change the behavior of the driver.
Changes from v1:
Added "PCI: xilinx: Removed unused xilinx_pcie_assign_msi() argument"
I dropped the following patches because they were a lot of churn for
questionable benefit:
PCI: xilinx: Name private struct pointer "xilinx" consistently
PCI: xilinx: Rename accessors
PCI: xilinx: Swap order of xilinx_writel() reg/val arguments
PCI: xilinx-nwl: Name private struct pointer "nwl" consistently
PCI: xilinx-nwl: Swap order of nwl_bridge_writel() reg/val arguments
---
Bjorn Helgaas (5):
PCI: xilinx: Add local struct device pointers
PCI: xilinx: Remove unused platform data
PCI: xilinx: Removed unused xilinx_pcie_assign_msi() argument
PCI: xilinx-nwl: Add local struct device pointers
PCI: xilinx-nwl: Remove unused platform data
drivers/pci/host/pcie-xilinx-nwl.c | 109 ++++++++++++++++++------------------
drivers/pci/host/pcie-xilinx.c | 62 ++++++++++----------
2 files changed, 87 insertions(+), 84 deletions(-)
^ permalink raw reply [flat|nested] 7+ messages in thread
* [PATCH v2 1/5] PCI: xilinx: Add local struct device pointers
2016-10-12 13:10 [PATCH v2 0/5] PCI: xilinx: Cleanups Bjorn Helgaas
@ 2016-10-12 13:10 ` Bjorn Helgaas
2016-10-12 13:10 ` [PATCH v2 2/5] PCI: xilinx: Remove unused platform data Bjorn Helgaas
` (4 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: Bjorn Helgaas @ 2016-10-12 13:10 UTC (permalink / raw)
To: Michal Simek, Sören Brinkmann; +Cc: linux-pci
Use a local "struct device *dev" for brevity and consistency with other
drivers. No functional change intended.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
drivers/pci/host/pcie-xilinx.c | 55 +++++++++++++++++++++-------------------
1 file changed, 29 insertions(+), 26 deletions(-)
diff --git a/drivers/pci/host/pcie-xilinx.c b/drivers/pci/host/pcie-xilinx.c
index be56803..2ef47af 100644
--- a/drivers/pci/host/pcie-xilinx.c
+++ b/drivers/pci/host/pcie-xilinx.c
@@ -140,10 +140,11 @@ static inline bool xilinx_pcie_link_is_up(struct xilinx_pcie_port *port)
*/
static void xilinx_pcie_clear_err_interrupts(struct xilinx_pcie_port *port)
{
+ struct device *dev = port->dev;
unsigned long val = pcie_read(port, XILINX_PCIE_REG_RPEFR);
if (val & XILINX_PCIE_RPEFR_ERR_VALID) {
- dev_dbg(port->dev, "Requester ID %lu\n",
+ dev_dbg(dev, "Requester ID %lu\n",
val & XILINX_PCIE_RPEFR_REQ_ID);
pcie_write(port, XILINX_PCIE_RPEFR_ALL_MASK,
XILINX_PCIE_REG_RPEFR);
@@ -383,6 +384,7 @@ static const struct irq_domain_ops intx_domain_ops = {
static irqreturn_t xilinx_pcie_intr_handler(int irq, void *data)
{
struct xilinx_pcie_port *port = (struct xilinx_pcie_port *)data;
+ struct device *dev = port->dev;
u32 val, mask, status, msi_data;
/* Read interrupt decode and mask registers */
@@ -394,32 +396,32 @@ static irqreturn_t xilinx_pcie_intr_handler(int irq, void *data)
return IRQ_NONE;
if (status & XILINX_PCIE_INTR_LINK_DOWN)
- dev_warn(port->dev, "Link Down\n");
+ dev_warn(dev, "Link Down\n");
if (status & XILINX_PCIE_INTR_ECRC_ERR)
- dev_warn(port->dev, "ECRC failed\n");
+ dev_warn(dev, "ECRC failed\n");
if (status & XILINX_PCIE_INTR_STR_ERR)
- dev_warn(port->dev, "Streaming error\n");
+ dev_warn(dev, "Streaming error\n");
if (status & XILINX_PCIE_INTR_HOT_RESET)
- dev_info(port->dev, "Hot reset\n");
+ dev_info(dev, "Hot reset\n");
if (status & XILINX_PCIE_INTR_CFG_TIMEOUT)
- dev_warn(port->dev, "ECAM access timeout\n");
+ dev_warn(dev, "ECAM access timeout\n");
if (status & XILINX_PCIE_INTR_CORRECTABLE) {
- dev_warn(port->dev, "Correctable error message\n");
+ dev_warn(dev, "Correctable error message\n");
xilinx_pcie_clear_err_interrupts(port);
}
if (status & XILINX_PCIE_INTR_NONFATAL) {
- dev_warn(port->dev, "Non fatal error message\n");
+ dev_warn(dev, "Non fatal error message\n");
xilinx_pcie_clear_err_interrupts(port);
}
if (status & XILINX_PCIE_INTR_FATAL) {
- dev_warn(port->dev, "Fatal error message\n");
+ dev_warn(dev, "Fatal error message\n");
xilinx_pcie_clear_err_interrupts(port);
}
@@ -429,7 +431,7 @@ static irqreturn_t xilinx_pcie_intr_handler(int irq, void *data)
/* Check whether interrupt valid */
if (!(val & XILINX_PCIE_RPIFR1_INTR_VALID)) {
- dev_warn(port->dev, "RP Intr FIFO1 read error\n");
+ dev_warn(dev, "RP Intr FIFO1 read error\n");
goto error;
}
@@ -451,7 +453,7 @@ static irqreturn_t xilinx_pcie_intr_handler(int irq, void *data)
val = pcie_read(port, XILINX_PCIE_REG_RPIFR1);
if (!(val & XILINX_PCIE_RPIFR1_INTR_VALID)) {
- dev_warn(port->dev, "RP Intr FIFO1 read error\n");
+ dev_warn(dev, "RP Intr FIFO1 read error\n");
goto error;
}
@@ -471,31 +473,31 @@ static irqreturn_t xilinx_pcie_intr_handler(int irq, void *data)
}
if (status & XILINX_PCIE_INTR_SLV_UNSUPP)
- dev_warn(port->dev, "Slave unsupported request\n");
+ dev_warn(dev, "Slave unsupported request\n");
if (status & XILINX_PCIE_INTR_SLV_UNEXP)
- dev_warn(port->dev, "Slave unexpected completion\n");
+ dev_warn(dev, "Slave unexpected completion\n");
if (status & XILINX_PCIE_INTR_SLV_COMPL)
- dev_warn(port->dev, "Slave completion timeout\n");
+ dev_warn(dev, "Slave completion timeout\n");
if (status & XILINX_PCIE_INTR_SLV_ERRP)
- dev_warn(port->dev, "Slave Error Poison\n");
+ dev_warn(dev, "Slave Error Poison\n");
if (status & XILINX_PCIE_INTR_SLV_CMPABT)
- dev_warn(port->dev, "Slave Completer Abort\n");
+ dev_warn(dev, "Slave Completer Abort\n");
if (status & XILINX_PCIE_INTR_SLV_ILLBUR)
- dev_warn(port->dev, "Slave Illegal Burst\n");
+ dev_warn(dev, "Slave Illegal Burst\n");
if (status & XILINX_PCIE_INTR_MST_DECERR)
- dev_warn(port->dev, "Master decode error\n");
+ dev_warn(dev, "Master decode error\n");
if (status & XILINX_PCIE_INTR_MST_SLVERR)
- dev_warn(port->dev, "Master slave error\n");
+ dev_warn(dev, "Master slave error\n");
if (status & XILINX_PCIE_INTR_MST_ERRP)
- dev_warn(port->dev, "Master error poison\n");
+ dev_warn(dev, "Master error poison\n");
error:
/* Clear the Interrupt Decode register */
@@ -554,10 +556,12 @@ static int xilinx_pcie_init_irq_domain(struct xilinx_pcie_port *port)
*/
static void xilinx_pcie_init_port(struct xilinx_pcie_port *port)
{
+ struct device *dev = port->dev;
+
if (xilinx_pcie_link_is_up(port))
- dev_info(port->dev, "PCIe Link is UP\n");
+ dev_info(dev, "PCIe Link is UP\n");
else
- dev_info(port->dev, "PCIe Link is DOWN\n");
+ dev_info(dev, "PCIe Link is DOWN\n");
/* Disable all interrupts */
pcie_write(port, ~XILINX_PCIE_IDR_ALL_MASK,
@@ -627,8 +631,8 @@ static int xilinx_pcie_parse_dt(struct xilinx_pcie_port *port)
*/
static int xilinx_pcie_probe(struct platform_device *pdev)
{
- struct xilinx_pcie_port *port;
struct device *dev = &pdev->dev;
+ struct xilinx_pcie_port *port;
struct pci_bus *bus;
int err;
resource_size_t iobase = 0;
@@ -668,15 +672,14 @@ static int xilinx_pcie_probe(struct platform_device *pdev)
if (err)
goto error;
- bus = pci_create_root_bus(&pdev->dev, 0,
- &xilinx_pcie_ops, port, &res);
+ bus = pci_create_root_bus(dev, 0, &xilinx_pcie_ops, port, &res);
if (!bus) {
err = -ENOMEM;
goto error;
}
#ifdef CONFIG_PCI_MSI
- xilinx_pcie_msi_chip.dev = port->dev;
+ xilinx_pcie_msi_chip.dev = dev;
bus->msi = &xilinx_pcie_msi_chip;
#endif
pci_scan_child_bus(bus);
^ permalink raw reply related [flat|nested] 7+ messages in thread
* [PATCH v2 2/5] PCI: xilinx: Remove unused platform data
2016-10-12 13:10 [PATCH v2 0/5] PCI: xilinx: Cleanups Bjorn Helgaas
2016-10-12 13:10 ` [PATCH v2 1/5] PCI: xilinx: Add local struct device pointers Bjorn Helgaas
@ 2016-10-12 13:10 ` Bjorn Helgaas
2016-10-12 13:10 ` [PATCH v2 3/5] PCI: xilinx: Removed unused xilinx_pcie_assign_msi() argument Bjorn Helgaas
` (3 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: Bjorn Helgaas @ 2016-10-12 13:10 UTC (permalink / raw)
To: Michal Simek, Sören Brinkmann; +Cc: linux-pci
The xilinx driver never uses the platform drvdata pointer, so don't
bother setting it. No functional change intended.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
drivers/pci/host/pcie-xilinx.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/drivers/pci/host/pcie-xilinx.c b/drivers/pci/host/pcie-xilinx.c
index 2ef47af..8a0eb03 100644
--- a/drivers/pci/host/pcie-xilinx.c
+++ b/drivers/pci/host/pcie-xilinx.c
@@ -688,8 +688,6 @@ static int xilinx_pcie_probe(struct platform_device *pdev)
pci_fixup_irqs(pci_common_swizzle, of_irq_parse_and_map_pci);
#endif
pci_bus_add_devices(bus);
- platform_set_drvdata(pdev, port);
-
return 0;
error:
^ permalink raw reply related [flat|nested] 7+ messages in thread
* [PATCH v2 3/5] PCI: xilinx: Removed unused xilinx_pcie_assign_msi() argument
2016-10-12 13:10 [PATCH v2 0/5] PCI: xilinx: Cleanups Bjorn Helgaas
2016-10-12 13:10 ` [PATCH v2 1/5] PCI: xilinx: Add local struct device pointers Bjorn Helgaas
2016-10-12 13:10 ` [PATCH v2 2/5] PCI: xilinx: Remove unused platform data Bjorn Helgaas
@ 2016-10-12 13:10 ` Bjorn Helgaas
2016-10-12 13:11 ` [PATCH v2 4/5] PCI: xilinx-nwl: Add local struct device pointers Bjorn Helgaas
` (2 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: Bjorn Helgaas @ 2016-10-12 13:10 UTC (permalink / raw)
To: Michal Simek, Sören Brinkmann; +Cc: linux-pci
xilinx_pcie_assign_msi() doesn't use the struct xilinx_pcie_port pointer
passed to it, so remove the argument completely. No functional change
intended.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
drivers/pci/host/pcie-xilinx.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/pci/host/pcie-xilinx.c b/drivers/pci/host/pcie-xilinx.c
index 8a0eb03..c8616fa 100644
--- a/drivers/pci/host/pcie-xilinx.c
+++ b/drivers/pci/host/pcie-xilinx.c
@@ -229,11 +229,10 @@ static void xilinx_pcie_destroy_msi(unsigned int irq)
/**
* xilinx_pcie_assign_msi - Allocate MSI number
- * @port: PCIe port structure
*
* Return: A valid IRQ on success and error value on failure.
*/
-static int xilinx_pcie_assign_msi(struct xilinx_pcie_port *port)
+static int xilinx_pcie_assign_msi(void)
{
int pos;
@@ -276,7 +275,7 @@ static int xilinx_pcie_msi_setup_irq(struct msi_controller *chip,
struct msi_msg msg;
phys_addr_t msg_addr;
- hwirq = xilinx_pcie_assign_msi(port);
+ hwirq = xilinx_pcie_assign_msi();
if (hwirq < 0)
return hwirq;
^ permalink raw reply related [flat|nested] 7+ messages in thread
* [PATCH v2 4/5] PCI: xilinx-nwl: Add local struct device pointers
2016-10-12 13:10 [PATCH v2 0/5] PCI: xilinx: Cleanups Bjorn Helgaas
` (2 preceding siblings ...)
2016-10-12 13:10 ` [PATCH v2 3/5] PCI: xilinx: Removed unused xilinx_pcie_assign_msi() argument Bjorn Helgaas
@ 2016-10-12 13:11 ` Bjorn Helgaas
2016-10-12 13:11 ` [PATCH v2 5/5] PCI: xilinx-nwl: Remove unused platform data Bjorn Helgaas
2016-10-12 16:03 ` [PATCH v2 0/5] PCI: xilinx: Cleanups Bjorn Helgaas
5 siblings, 0 replies; 7+ messages in thread
From: Bjorn Helgaas @ 2016-10-12 13:11 UTC (permalink / raw)
To: Michal Simek, Sören Brinkmann; +Cc: linux-pci
Use a local "struct device *dev" for brevity and consistency with other
drivers. No functional change intended.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
drivers/pci/host/pcie-xilinx-nwl.c | 108 +++++++++++++++++++-----------------
1 file changed, 56 insertions(+), 52 deletions(-)
diff --git a/drivers/pci/host/pcie-xilinx-nwl.c b/drivers/pci/host/pcie-xilinx-nwl.c
index 67eae41..10d4517 100644
--- a/drivers/pci/host/pcie-xilinx-nwl.c
+++ b/drivers/pci/host/pcie-xilinx-nwl.c
@@ -212,6 +212,7 @@ static bool nwl_phy_link_up(struct nwl_pcie *pcie)
static int nwl_wait_for_link(struct nwl_pcie *pcie)
{
+ struct device *dev = pcie->dev;
int retries;
/* check if the link is up or not */
@@ -221,7 +222,7 @@ static int nwl_wait_for_link(struct nwl_pcie *pcie)
usleep_range(LINK_WAIT_USLEEP_MIN, LINK_WAIT_USLEEP_MAX);
}
- dev_err(pcie->dev, "PHY link never came up\n");
+ dev_err(dev, "PHY link never came up\n");
return -ETIMEDOUT;
}
@@ -277,6 +278,7 @@ static struct pci_ops nwl_pcie_ops = {
static irqreturn_t nwl_pcie_misc_handler(int irq, void *data)
{
struct nwl_pcie *pcie = data;
+ struct device *dev = pcie->dev;
u32 misc_stat;
/* Checking for misc interrupts */
@@ -286,45 +288,43 @@ static irqreturn_t nwl_pcie_misc_handler(int irq, void *data)
return IRQ_NONE;
if (misc_stat & MSGF_MISC_SR_RXMSG_OVER)
- dev_err(pcie->dev, "Received Message FIFO Overflow\n");
+ dev_err(dev, "Received Message FIFO Overflow\n");
if (misc_stat & MSGF_MISC_SR_SLAVE_ERR)
- dev_err(pcie->dev, "Slave error\n");
+ dev_err(dev, "Slave error\n");
if (misc_stat & MSGF_MISC_SR_MASTER_ERR)
- dev_err(pcie->dev, "Master error\n");
+ dev_err(dev, "Master error\n");
if (misc_stat & MSGF_MISC_SR_I_ADDR_ERR)
- dev_err(pcie->dev,
- "In Misc Ingress address translation error\n");
+ dev_err(dev, "In Misc Ingress address translation error\n");
if (misc_stat & MSGF_MISC_SR_E_ADDR_ERR)
- dev_err(pcie->dev,
- "In Misc Egress address translation error\n");
+ dev_err(dev, "In Misc Egress address translation error\n");
if (misc_stat & MSGF_MISC_SR_FATAL_AER)
- dev_err(pcie->dev, "Fatal Error in AER Capability\n");
+ dev_err(dev, "Fatal Error in AER Capability\n");
if (misc_stat & MSGF_MISC_SR_NON_FATAL_AER)
- dev_err(pcie->dev, "Non-Fatal Error in AER Capability\n");
+ dev_err(dev, "Non-Fatal Error in AER Capability\n");
if (misc_stat & MSGF_MISC_SR_CORR_AER)
- dev_err(pcie->dev, "Correctable Error in AER Capability\n");
+ dev_err(dev, "Correctable Error in AER Capability\n");
if (misc_stat & MSGF_MISC_SR_UR_DETECT)
- dev_err(pcie->dev, "Unsupported request Detected\n");
+ dev_err(dev, "Unsupported request Detected\n");
if (misc_stat & MSGF_MISC_SR_NON_FATAL_DEV)
- dev_err(pcie->dev, "Non-Fatal Error Detected\n");
+ dev_err(dev, "Non-Fatal Error Detected\n");
if (misc_stat & MSGF_MISC_SR_FATAL_DEV)
- dev_err(pcie->dev, "Fatal Error Detected\n");
+ dev_err(dev, "Fatal Error Detected\n");
if (misc_stat & MSGF_MSIC_SR_LINK_AUTO_BWIDTH)
- dev_info(pcie->dev, "Link Autonomous Bandwidth Management Status bit set\n");
+ dev_info(dev, "Link Autonomous Bandwidth Management Status bit set\n");
if (misc_stat & MSGF_MSIC_SR_LINK_BWIDTH)
- dev_info(pcie->dev, "Link Bandwidth Management Status bit set\n");
+ dev_info(dev, "Link Bandwidth Management Status bit set\n");
/* Clear misc interrupt status */
nwl_bridge_writel(pcie, misc_stat, MSGF_MISC_STATUS);
@@ -494,20 +494,21 @@ static const struct irq_domain_ops dev_msi_domain_ops = {
static int nwl_pcie_init_msi_irq_domain(struct nwl_pcie *pcie)
{
#ifdef CONFIG_PCI_MSI
- struct fwnode_handle *fwnode = of_node_to_fwnode(pcie->dev->of_node);
+ struct device *dev = pcie->dev;
+ struct fwnode_handle *fwnode = of_node_to_fwnode(dev->of_node);
struct nwl_msi *msi = &pcie->msi;
msi->dev_domain = irq_domain_add_linear(NULL, INT_PCI_MSI_NR,
&dev_msi_domain_ops, pcie);
if (!msi->dev_domain) {
- dev_err(pcie->dev, "failed to create dev IRQ domain\n");
+ dev_err(dev, "failed to create dev IRQ domain\n");
return -ENOMEM;
}
msi->msi_domain = pci_msi_create_irq_domain(fwnode,
&nwl_msi_domain_info,
msi->dev_domain);
if (!msi->msi_domain) {
- dev_err(pcie->dev, "failed to create msi IRQ domain\n");
+ dev_err(dev, "failed to create msi IRQ domain\n");
irq_domain_remove(msi->dev_domain);
return -ENOMEM;
}
@@ -517,12 +518,13 @@ static int nwl_pcie_init_msi_irq_domain(struct nwl_pcie *pcie)
static int nwl_pcie_init_irq_domain(struct nwl_pcie *pcie)
{
- struct device_node *node = pcie->dev->of_node;
+ struct device *dev = pcie->dev;
+ struct device_node *node = dev->of_node;
struct device_node *legacy_intc_node;
legacy_intc_node = of_get_next_child(node, NULL);
if (!legacy_intc_node) {
- dev_err(pcie->dev, "No legacy intc node found\n");
+ dev_err(dev, "No legacy intc node found\n");
return -EINVAL;
}
@@ -532,7 +534,7 @@ static int nwl_pcie_init_irq_domain(struct nwl_pcie *pcie)
pcie);
if (!pcie->legacy_irq_domain) {
- dev_err(pcie->dev, "failed to create IRQ domain\n");
+ dev_err(dev, "failed to create IRQ domain\n");
return -ENOMEM;
}
@@ -542,7 +544,8 @@ static int nwl_pcie_init_irq_domain(struct nwl_pcie *pcie)
static int nwl_pcie_enable_msi(struct nwl_pcie *pcie, struct pci_bus *bus)
{
- struct platform_device *pdev = to_platform_device(pcie->dev);
+ struct device *dev = pcie->dev;
+ struct platform_device *pdev = to_platform_device(dev);
struct nwl_msi *msi = &pcie->msi;
unsigned long base;
int ret;
@@ -557,7 +560,7 @@ static int nwl_pcie_enable_msi(struct nwl_pcie *pcie, struct pci_bus *bus)
/* Get msi_1 IRQ number */
msi->irq_msi1 = platform_get_irq_byname(pdev, "msi1");
if (msi->irq_msi1 < 0) {
- dev_err(&pdev->dev, "failed to get IRQ#%d\n", msi->irq_msi1);
+ dev_err(dev, "failed to get IRQ#%d\n", msi->irq_msi1);
ret = -EINVAL;
goto err;
}
@@ -568,7 +571,7 @@ static int nwl_pcie_enable_msi(struct nwl_pcie *pcie, struct pci_bus *bus)
/* Get msi_0 IRQ number */
msi->irq_msi0 = platform_get_irq_byname(pdev, "msi0");
if (msi->irq_msi0 < 0) {
- dev_err(&pdev->dev, "failed to get IRQ#%d\n", msi->irq_msi0);
+ dev_err(dev, "failed to get IRQ#%d\n", msi->irq_msi0);
ret = -EINVAL;
goto err;
}
@@ -579,7 +582,7 @@ static int nwl_pcie_enable_msi(struct nwl_pcie *pcie, struct pci_bus *bus)
/* Check for msii_present bit */
ret = nwl_bridge_readl(pcie, I_MSII_CAPABILITIES) & MSII_PRESENT;
if (!ret) {
- dev_err(pcie->dev, "MSI not present\n");
+ dev_err(dev, "MSI not present\n");
ret = -EIO;
goto err;
}
@@ -628,13 +631,14 @@ err:
static int nwl_pcie_bridge_init(struct nwl_pcie *pcie)
{
- struct platform_device *pdev = to_platform_device(pcie->dev);
+ struct device *dev = pcie->dev;
+ struct platform_device *pdev = to_platform_device(dev);
u32 breg_val, ecam_val, first_busno = 0;
int err;
breg_val = nwl_bridge_readl(pcie, E_BREG_CAPABILITIES) & BREG_PRESENT;
if (!breg_val) {
- dev_err(pcie->dev, "BREG is not present\n");
+ dev_err(dev, "BREG is not present\n");
return breg_val;
}
@@ -665,7 +669,7 @@ static int nwl_pcie_bridge_init(struct nwl_pcie *pcie)
ecam_val = nwl_bridge_readl(pcie, E_ECAM_CAPABILITIES) & E_ECAM_PRESENT;
if (!ecam_val) {
- dev_err(pcie->dev, "ECAM is not present\n");
+ dev_err(dev, "ECAM is not present\n");
return ecam_val;
}
@@ -692,23 +696,23 @@ static int nwl_pcie_bridge_init(struct nwl_pcie *pcie)
writel(ecam_val, (pcie->ecam_base + PCI_PRIMARY_BUS));
if (nwl_pcie_link_up(pcie))
- dev_info(pcie->dev, "Link is UP\n");
+ dev_info(dev, "Link is UP\n");
else
- dev_info(pcie->dev, "Link is DOWN\n");
+ dev_info(dev, "Link is DOWN\n");
/* Get misc IRQ number */
pcie->irq_misc = platform_get_irq_byname(pdev, "misc");
if (pcie->irq_misc < 0) {
- dev_err(&pdev->dev, "failed to get misc IRQ %d\n",
+ dev_err(dev, "failed to get misc IRQ %d\n",
pcie->irq_misc);
return -EINVAL;
}
- err = devm_request_irq(pcie->dev, pcie->irq_misc,
+ err = devm_request_irq(dev, pcie->irq_misc,
nwl_pcie_misc_handler, IRQF_SHARED,
"nwl_pcie:misc", pcie);
if (err) {
- dev_err(pcie->dev, "fail to register misc IRQ#%d\n",
+ dev_err(dev, "fail to register misc IRQ#%d\n",
pcie->irq_misc);
return err;
}
@@ -744,31 +748,32 @@ static int nwl_pcie_bridge_init(struct nwl_pcie *pcie)
static int nwl_pcie_parse_dt(struct nwl_pcie *pcie,
struct platform_device *pdev)
{
- struct device_node *node = pcie->dev->of_node;
+ struct device *dev = pcie->dev;
+ struct device_node *node = dev->of_node;
struct resource *res;
const char *type;
/* Check for device type */
type = of_get_property(node, "device_type", NULL);
if (!type || strcmp(type, "pci")) {
- dev_err(pcie->dev, "invalid \"device_type\" %s\n", type);
+ dev_err(dev, "invalid \"device_type\" %s\n", type);
return -EINVAL;
}
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "breg");
- pcie->breg_base = devm_ioremap_resource(pcie->dev, res);
+ pcie->breg_base = devm_ioremap_resource(dev, res);
if (IS_ERR(pcie->breg_base))
return PTR_ERR(pcie->breg_base);
pcie->phys_breg_base = res->start;
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pcireg");
- pcie->pcireg_base = devm_ioremap_resource(pcie->dev, res);
+ pcie->pcireg_base = devm_ioremap_resource(dev, res);
if (IS_ERR(pcie->pcireg_base))
return PTR_ERR(pcie->pcireg_base);
pcie->phys_pcie_reg_base = res->start;
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "cfg");
- pcie->ecam_base = devm_ioremap_resource(pcie->dev, res);
+ pcie->ecam_base = devm_ioremap_resource(dev, res);
if (IS_ERR(pcie->ecam_base))
return PTR_ERR(pcie->ecam_base);
pcie->phys_ecam_base = res->start;
@@ -776,8 +781,7 @@ static int nwl_pcie_parse_dt(struct nwl_pcie *pcie,
/* Get intx IRQ number */
pcie->irq_intx = platform_get_irq_byname(pdev, "intx");
if (pcie->irq_intx < 0) {
- dev_err(&pdev->dev, "failed to get intx IRQ %d\n",
- pcie->irq_intx);
+ dev_err(dev, "failed to get intx IRQ %d\n", pcie->irq_intx);
return -EINVAL;
}
@@ -794,7 +798,8 @@ static const struct of_device_id nwl_pcie_of_match[] = {
static int nwl_pcie_probe(struct platform_device *pdev)
{
- struct device_node *node = pdev->dev.of_node;
+ struct device *dev = &pdev->dev;
+ struct device_node *node = dev->of_node;
struct nwl_pcie *pcie;
struct pci_bus *bus;
struct pci_bus *child;
@@ -802,42 +807,42 @@ static int nwl_pcie_probe(struct platform_device *pdev)
resource_size_t iobase = 0;
LIST_HEAD(res);
- pcie = devm_kzalloc(&pdev->dev, sizeof(*pcie), GFP_KERNEL);
+ pcie = devm_kzalloc(dev, sizeof(*pcie), GFP_KERNEL);
if (!pcie)
return -ENOMEM;
- pcie->dev = &pdev->dev;
+ pcie->dev = dev;
pcie->ecam_value = NWL_ECAM_VALUE_DEFAULT;
err = nwl_pcie_parse_dt(pcie, pdev);
if (err) {
- dev_err(pcie->dev, "Parsing DT failed\n");
+ dev_err(dev, "Parsing DT failed\n");
return err;
}
err = nwl_pcie_bridge_init(pcie);
if (err) {
- dev_err(pcie->dev, "HW Initialization failed\n");
+ dev_err(dev, "HW Initialization failed\n");
return err;
}
err = of_pci_get_host_bridge_resources(node, 0, 0xff, &res, &iobase);
if (err) {
- dev_err(pcie->dev, "Getting bridge resources failed\n");
+ dev_err(dev, "Getting bridge resources failed\n");
return err;
}
- err = devm_request_pci_bus_resources(pcie->dev, &res);
+ err = devm_request_pci_bus_resources(dev, &res);
if (err)
goto error;
err = nwl_pcie_init_irq_domain(pcie);
if (err) {
- dev_err(pcie->dev, "Failed creating IRQ Domain\n");
+ dev_err(dev, "Failed creating IRQ Domain\n");
goto error;
}
- bus = pci_create_root_bus(&pdev->dev, pcie->root_busno,
+ bus = pci_create_root_bus(dev, pcie->root_busno,
&nwl_pcie_ops, pcie, &res);
if (!bus) {
err = -ENOMEM;
@@ -847,8 +852,7 @@ static int nwl_pcie_probe(struct platform_device *pdev)
if (IS_ENABLED(CONFIG_PCI_MSI)) {
err = nwl_pcie_enable_msi(pcie, bus);
if (err < 0) {
- dev_err(&pdev->dev,
- "failed to enable MSI support: %d\n", err);
+ dev_err(dev, "failed to enable MSI support: %d\n", err);
goto error;
}
}
^ permalink raw reply related [flat|nested] 7+ messages in thread
* [PATCH v2 5/5] PCI: xilinx-nwl: Remove unused platform data
2016-10-12 13:10 [PATCH v2 0/5] PCI: xilinx: Cleanups Bjorn Helgaas
` (3 preceding siblings ...)
2016-10-12 13:11 ` [PATCH v2 4/5] PCI: xilinx-nwl: Add local struct device pointers Bjorn Helgaas
@ 2016-10-12 13:11 ` Bjorn Helgaas
2016-10-12 16:03 ` [PATCH v2 0/5] PCI: xilinx: Cleanups Bjorn Helgaas
5 siblings, 0 replies; 7+ messages in thread
From: Bjorn Helgaas @ 2016-10-12 13:11 UTC (permalink / raw)
To: Michal Simek, Sören Brinkmann; +Cc: linux-pci
The xilinx-nwl driver never uses the platform drvdata pointer, so don't
bother setting it. No functional change intended.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
drivers/pci/host/pcie-xilinx-nwl.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/pci/host/pcie-xilinx-nwl.c b/drivers/pci/host/pcie-xilinx-nwl.c
index 10d4517..43eaa4a 100644
--- a/drivers/pci/host/pcie-xilinx-nwl.c
+++ b/drivers/pci/host/pcie-xilinx-nwl.c
@@ -861,7 +861,6 @@ static int nwl_pcie_probe(struct platform_device *pdev)
list_for_each_entry(child, &bus->children, node)
pcie_bus_configure_settings(child);
pci_bus_add_devices(bus);
- platform_set_drvdata(pdev, pcie);
return 0;
error:
^ permalink raw reply related [flat|nested] 7+ messages in thread
* Re: [PATCH v2 0/5] PCI: xilinx: Cleanups
2016-10-12 13:10 [PATCH v2 0/5] PCI: xilinx: Cleanups Bjorn Helgaas
` (4 preceding siblings ...)
2016-10-12 13:11 ` [PATCH v2 5/5] PCI: xilinx-nwl: Remove unused platform data Bjorn Helgaas
@ 2016-10-12 16:03 ` Bjorn Helgaas
5 siblings, 0 replies; 7+ messages in thread
From: Bjorn Helgaas @ 2016-10-12 16:03 UTC (permalink / raw)
To: Bjorn Helgaas; +Cc: Michal Simek, Sören Brinkmann, linux-pci
On Wed, Oct 12, 2016 at 08:10:30AM -0500, Bjorn Helgaas wrote:
> - Add local "dev" pointers to reduce repetition of things like
> "&pdev->dev".
>
> - Remove platform drvdata because it appears unused (we called
> platform_set_drvdata() but not platform_get_drvdata()).
>
> - Remove unused xilinx_pcie_assign_msi() argument.
>
> Nothing here should change the behavior of the driver.
>
> Changes from v1:
> Added "PCI: xilinx: Removed unused xilinx_pcie_assign_msi() argument"
> I dropped the following patches because they were a lot of churn for
> questionable benefit:
> PCI: xilinx: Name private struct pointer "xilinx" consistently
> PCI: xilinx: Rename accessors
> PCI: xilinx: Swap order of xilinx_writel() reg/val arguments
> PCI: xilinx-nwl: Name private struct pointer "nwl" consistently
> PCI: xilinx-nwl: Swap order of nwl_bridge_writel() reg/val arguments
>
> ---
>
> Bjorn Helgaas (5):
> PCI: xilinx: Add local struct device pointers
> PCI: xilinx: Remove unused platform data
> PCI: xilinx: Removed unused xilinx_pcie_assign_msi() argument
> PCI: xilinx-nwl: Add local struct device pointers
> PCI: xilinx-nwl: Remove unused platform data
I applied these to pci/host-xilinx for v4.9. I hope to ask Linus to
pull them tomorrow, so if you see any issues, let me know soon.
^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2016-10-12 16:03 UTC | newest]
Thread overview: 7+ messages (download: mbox.gz follow: Atom feed
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2016-10-12 13:10 [PATCH v2 0/5] PCI: xilinx: Cleanups Bjorn Helgaas
2016-10-12 13:10 ` [PATCH v2 1/5] PCI: xilinx: Add local struct device pointers Bjorn Helgaas
2016-10-12 13:10 ` [PATCH v2 2/5] PCI: xilinx: Remove unused platform data Bjorn Helgaas
2016-10-12 13:10 ` [PATCH v2 3/5] PCI: xilinx: Removed unused xilinx_pcie_assign_msi() argument Bjorn Helgaas
2016-10-12 13:11 ` [PATCH v2 4/5] PCI: xilinx-nwl: Add local struct device pointers Bjorn Helgaas
2016-10-12 13:11 ` [PATCH v2 5/5] PCI: xilinx-nwl: Remove unused platform data Bjorn Helgaas
2016-10-12 16:03 ` [PATCH v2 0/5] PCI: xilinx: Cleanups Bjorn Helgaas
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