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authorLinus Torvalds <torvalds@linux-foundation.org>2024-09-18 10:43:07 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2024-09-18 10:43:07 +0200
commit9b08f8327f71bf3b091567f0a9ddb72ca60f4fb2 (patch)
treea32fda2b4379418975938f16e02866b23e095540 /drivers/gpio/gpio-cadence.c
parentcc52dc2fe39ff5dee9916ac2d9381ec3cbf650c0 (diff)
parent6b5e97c020060c2b8ad286002415106ab7034435 (diff)
Merge tag 'gpio-updates-for-v6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio updates from Bartosz Golaszewski: "Core GPIOLIB: - provide and add users for a macro allowing to iterate over accepted GPIO property names of consumer device nodes - remove legacy definitions that are no longer used - put legacy GPIO devres helpers together with the rest of the deprecated code - implement and use swnode_gpio_get_reference(): a wrapper simplifying the underlying calls to fwnode_property_get_reference_args() - use IS_ERR_OR_NULL() where it makes sense - replace of_find_property() with of_property_present() - simplify code with the scoped variant of OF-node children iterator Documentation: - update GPIO kerneldocs with Return sections - fix "Excess struct member description" warnings now being triggered with W=1 New drivers: - add support for Analog Devices ADP5585 Driver improvements: - add support for wake-on-GPIO to gpio-mpc8xxx - use GPIO_LOOKUP_IDX() in gpio-virtuser - use devm_clk_get_[optional_]enabled() where applicable in several drivers - replace OF-specific functions with provider-agnostic alternatives where possible - drop support for legacy platform data from gpio-ath79 and gpio-davinci - refactor gpio-stmpe - improve error reporting in gpio-pca953x - add support for reading the direction of pins for some models to gpio-vf610 DT bindings: - convert the bindings for nxp,lpc3220 to YAML - add gpio-reserved-ranges to gpio-davinci - simplify the GPIO hog schema - fix a GPIO hog issue in bindings for fcs,fxl6408 Other: - fix format specifiers in user-space tools - remove leftover files on make clean in tools/gpio/" * tag 'gpio-updates-for-v6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (54 commits) gpio: mpc8xxx: switch to using DEFINE_RUNTIME_DEV_PM_OPS() gpio: xilinx: Use helper function devm_clk_get_optional_enabled() gpio: mb86s7x: Use helper function devm_clk_get_optional_enabled() gpio: lpc18xx: Use helper function devm_clk_get_enabled() gpio: cadence: Use helper function devm_clk_get_enabled() gpio: sama5d2-piobu: convert comma to semicolon gpio: mpc8xxx: order headers alphabetically gpio: davinci: use devm_clk_get_enabled() gpio: davinci: drop platform data support gpio: stmpe: Sort headers gpio: stmpe: Make use of device properties gpio: stmpe: Utilise temporary variable for struct device gpio: stmpe: Remove unused 'dev' member of struct stmpe_gpio gpio: stmpe: Fix IRQ related error messages gpio: pch: kerneldoc fixes for excess members gpio: zynq: Simplify using devm_clk_get_enabled() gpio: mpc8xxx: Add wake on GPIO support gpio: syscon: fix excess struct member build warning gpio: stp-xway: Simplify using devm_clk_get_enabled() gpiolib: legacy: Consolidate devm_gpio_*() with other legacy APIs ...
Diffstat (limited to 'drivers/gpio/gpio-cadence.c')
-rw-r--r--drivers/gpio/gpio-cadence.c23
1 files changed, 6 insertions, 17 deletions
diff --git a/drivers/gpio/gpio-cadence.c b/drivers/gpio/gpio-cadence.c
index 6a439cf78459..1b8ffd0ddab6 100644
--- a/drivers/gpio/gpio-cadence.c
+++ b/drivers/gpio/gpio-cadence.c
@@ -31,7 +31,6 @@
struct cdns_gpio_chip {
struct gpio_chip gc;
- struct clk *pclk;
void __iomem *regs;
u32 bypass_orig;
};
@@ -155,6 +154,7 @@ static int cdns_gpio_probe(struct platform_device *pdev)
int ret, irq;
u32 dir_prev;
u32 num_gpios = 32;
+ struct clk *clk;
cgpio = devm_kzalloc(&pdev->dev, sizeof(*cgpio), GFP_KERNEL);
if (!cgpio)
@@ -203,21 +203,14 @@ static int cdns_gpio_probe(struct platform_device *pdev)
cgpio->gc.request = cdns_gpio_request;
cgpio->gc.free = cdns_gpio_free;
- cgpio->pclk = devm_clk_get(&pdev->dev, NULL);
- if (IS_ERR(cgpio->pclk)) {
- ret = PTR_ERR(cgpio->pclk);
+ clk = devm_clk_get_enabled(&pdev->dev, NULL);
+ if (IS_ERR(clk)) {
+ ret = PTR_ERR(clk);
dev_err(&pdev->dev,
"Failed to retrieve peripheral clock, %d\n", ret);
goto err_revert_dir;
}
- ret = clk_prepare_enable(cgpio->pclk);
- if (ret) {
- dev_err(&pdev->dev,
- "Failed to enable the peripheral clock, %d\n", ret);
- goto err_revert_dir;
- }
-
/*
* Optional irq_chip support
*/
@@ -234,7 +227,7 @@ static int cdns_gpio_probe(struct platform_device *pdev)
GFP_KERNEL);
if (!girq->parents) {
ret = -ENOMEM;
- goto err_disable_clk;
+ goto err_revert_dir;
}
girq->parents[0] = irq;
girq->default_type = IRQ_TYPE_NONE;
@@ -244,7 +237,7 @@ static int cdns_gpio_probe(struct platform_device *pdev)
ret = devm_gpiochip_add_data(&pdev->dev, &cgpio->gc, cgpio);
if (ret < 0) {
dev_err(&pdev->dev, "Could not register gpiochip, %d\n", ret);
- goto err_disable_clk;
+ goto err_revert_dir;
}
cgpio->bypass_orig = ioread32(cgpio->regs + CDNS_GPIO_BYPASS_MODE);
@@ -259,9 +252,6 @@ static int cdns_gpio_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, cgpio);
return 0;
-err_disable_clk:
- clk_disable_unprepare(cgpio->pclk);
-
err_revert_dir:
iowrite32(dir_prev, cgpio->regs + CDNS_GPIO_DIRECTION_MODE);
@@ -273,7 +263,6 @@ static void cdns_gpio_remove(struct platform_device *pdev)
struct cdns_gpio_chip *cgpio = platform_get_drvdata(pdev);
iowrite32(cgpio->bypass_orig, cgpio->regs + CDNS_GPIO_BYPASS_MODE);
- clk_disable_unprepare(cgpio->pclk);
}
static const struct of_device_id cdns_of_ids[] = {