[PATCH v5 05/15] PCI/pwrctrl: tc9563: Add local variables to reduce repetition

From: Manivannan Sadhasivam via B4 Relay

Date: Thu Jan 15 2026 - 02:29:12 EST


From: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>

Add local struct device * and struct device_node * variables to reduce
repetitive pointer chasing. No functional changes intended.

Signed-off-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxxxxxxxx>
---
drivers/pci/pwrctrl/pci-pwrctrl-tc9563.c | 22 ++++++++++++----------
1 file changed, 12 insertions(+), 10 deletions(-)

diff --git a/drivers/pci/pwrctrl/pci-pwrctrl-tc9563.c b/drivers/pci/pwrctrl/pci-pwrctrl-tc9563.c
index efc4d2054bfd..90480e35e968 100644
--- a/drivers/pci/pwrctrl/pci-pwrctrl-tc9563.c
+++ b/drivers/pci/pwrctrl/pci-pwrctrl-tc9563.c
@@ -459,12 +459,13 @@ static void tc9563_pwrctrl_power_off(struct tc9563_pwrctrl_ctx *ctx)

static int tc9563_pwrctrl_bring_up(struct tc9563_pwrctrl_ctx *ctx)
{
+ struct device *dev = ctx->pwrctrl.dev;
struct tc9563_pwrctrl_cfg *cfg;
int ret, i;

ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
if (ret < 0)
- return dev_err_probe(ctx->pwrctrl.dev, ret, "cannot enable regulators\n");
+ return dev_err_probe(dev, ret, "cannot enable regulators\n");

gpiod_set_value(ctx->reset_gpio, 0);

@@ -478,37 +479,37 @@ static int tc9563_pwrctrl_bring_up(struct tc9563_pwrctrl_ctx *ctx)
cfg = &ctx->cfg[i];
ret = tc9563_pwrctrl_disable_port(ctx, i);
if (ret) {
- dev_err(ctx->pwrctrl.dev, "Disabling port failed\n");
+ dev_err(dev, "Disabling port failed\n");
goto power_off;
}

ret = tc9563_pwrctrl_set_l0s_l1_entry_delay(ctx, i, false, cfg->l0s_delay);
if (ret) {
- dev_err(ctx->pwrctrl.dev, "Setting L0s entry delay failed\n");
+ dev_err(dev, "Setting L0s entry delay failed\n");
goto power_off;
}

ret = tc9563_pwrctrl_set_l0s_l1_entry_delay(ctx, i, true, cfg->l1_delay);
if (ret) {
- dev_err(ctx->pwrctrl.dev, "Setting L1 entry delay failed\n");
+ dev_err(dev, "Setting L1 entry delay failed\n");
goto power_off;
}

ret = tc9563_pwrctrl_set_tx_amplitude(ctx, i);
if (ret) {
- dev_err(ctx->pwrctrl.dev, "Setting Tx amplitude failed\n");
+ dev_err(dev, "Setting Tx amplitude failed\n");
goto power_off;
}

ret = tc9563_pwrctrl_set_nfts(ctx, i);
if (ret) {
- dev_err(ctx->pwrctrl.dev, "Setting N_FTS failed\n");
+ dev_err(dev, "Setting N_FTS failed\n");
goto power_off;
}

ret = tc9563_pwrctrl_disable_dfe(ctx, i);
if (ret) {
- dev_err(ctx->pwrctrl.dev, "Disabling DFE failed\n");
+ dev_err(dev, "Disabling DFE failed\n");
goto power_off;
}
}
@@ -525,6 +526,7 @@ static int tc9563_pwrctrl_bring_up(struct tc9563_pwrctrl_ctx *ctx)
static int tc9563_pwrctrl_probe(struct platform_device *pdev)
{
struct pci_host_bridge *bridge = to_pci_host_bridge(pdev->dev.parent);
+ struct device_node *node = pdev->dev.of_node;
struct pci_bus *bus = bridge->bus;
struct device *dev = &pdev->dev;
enum tc9563_pwrctrl_ports port;
@@ -536,7 +538,7 @@ static int tc9563_pwrctrl_probe(struct platform_device *pdev)
if (!ctx)
return -ENOMEM;

- ret = of_property_read_u32_index(pdev->dev.of_node, "i2c-parent", 1, &addr);
+ ret = of_property_read_u32_index(node, "i2c-parent", 1, &addr);
if (ret)
return dev_err_probe(dev, ret, "Failed to read i2c-parent property\n");

@@ -572,7 +574,7 @@ static int tc9563_pwrctrl_probe(struct platform_device *pdev)
pci_pwrctrl_init(&ctx->pwrctrl, dev);

port = TC9563_USP;
- ret = tc9563_pwrctrl_parse_device_dt(ctx, pdev->dev.of_node, port);
+ ret = tc9563_pwrctrl_parse_device_dt(ctx, node, port);
if (ret) {
dev_err(dev, "failed to parse device tree properties: %d\n", ret);
goto remove_i2c;
@@ -583,7 +585,7 @@ static int tc9563_pwrctrl_probe(struct platform_device *pdev)
* The first node represents DSP1, the second node represents DSP2,
* and so on.
*/
- for_each_child_of_node_scoped(pdev->dev.of_node, child) {
+ for_each_child_of_node_scoped(node, child) {
port++;
ret = tc9563_pwrctrl_parse_device_dt(ctx, child, port);
if (ret)

--
2.48.1