Kernel/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-01-01 10:43:43 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Revert "MIPS: pci: lantiq: restore reset gpio polarity"

Browse Source 
This reverts commit 277a036312.

While fixing old boards with broken DTs, this change will break
newer ones with correct gpio polarity annotation.

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
This commit is contained in:
Thomas Bogendoerfer 2024-06-13 10:17:09 +02:00
parent ce5cdd3b05
commit 6e5aee08bd
1 changed files with 4 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
arch/mips/pci/pci-lantiq.c
View File

@ -124,14 +124,14 @@ static int ltq_pci_startup(struct platform_device *pdev)
clk_disable(clk_external); clk_disable(clk_external);
/* setup reset gpio used by pci */ /* setup reset gpio used by pci */
reset_gpio = devm_gpiod_get_optional(&pdev->dev, "reset", GPIOD_ASIS); reset_gpio = devm_gpiod_get_optional(&pdev->dev, "reset",
GPIOD_OUT_LOW);
error = PTR_ERR_OR_ZERO(reset_gpio); error = PTR_ERR_OR_ZERO(reset_gpio);
if (error) { if (error) {
dev_err(&pdev->dev, "failed to request gpio: %d\n", error); dev_err(&pdev->dev, "failed to request gpio: %d\n", error);
return error; return error;
} }
gpiod_set_consumer_name(reset_gpio, "pci_reset"); gpiod_set_consumer_name(reset_gpio, "pci_reset");
gpiod_direction_output(reset_gpio, 1);
/* enable auto-switching between PCI and EBU */ /* enable auto-switching between PCI and EBU */
ltq_pci_w32(0xa, PCI_CR_CLK_CTRL); ltq_pci_w32(0xa, PCI_CR_CLK_CTRL);
@ -194,10 +194,10 @@ static int ltq_pci_startup(struct platform_device *pdev)
/* toggle reset pin */ /* toggle reset pin */
if (reset_gpio) { if (reset_gpio) {
gpiod_set_value_cansleep(reset_gpio, 0); gpiod_set_value_cansleep(reset_gpio, 1);
wmb(); wmb();
mdelay(1); mdelay(1);
gpiod_set_value_cansleep(reset_gpio, 1); gpiod_set_value_cansleep(reset_gpio, 0);
} }
return 0; return 0;
} }