+++ /dev/null
-From 277a0363120276645ae598d8d5fea7265e076ae9 Mon Sep 17 00:00:00 2001
-From: Martin Schiller <ms@dev.tdt.de>
-Date: Fri, 7 Jun 2024 11:04:00 +0200
-Subject: MIPS: pci: lantiq: restore reset gpio polarity
-
-From: Martin Schiller <ms@dev.tdt.de>
-
-commit 277a0363120276645ae598d8d5fea7265e076ae9 upstream.
-
-Commit 90c2d2eb7ab5 ("MIPS: pci: lantiq: switch to using gpiod API") not
-only switched to the gpiod API, but also inverted / changed the polarity
-of the GPIO.
-
-According to the PCI specification, the RST# pin is an active-low
-signal. However, most of the device trees that have been widely used for
-a long time (mainly in the openWrt project) define this GPIO as
-active-high and the old driver code inverted the signal internally.
-
-Apparently there are actually boards where the reset gpio must be
-operated inverted. For this reason, we cannot use the GPIOD_OUT_LOW/HIGH
-flag for initialization. Instead, we must explicitly set the gpio to
-value 1 in order to take into account any "GPIO_ACTIVE_LOW" flag that
-may have been set.
-
-In order to remain compatible with all these existing device trees, we
-should therefore keep the logic as it was before the commit.
-
-Fixes: 90c2d2eb7ab5 ("MIPS: pci: lantiq: switch to using gpiod API")
-Cc: stable@vger.kernel.org
-Signed-off-by: Martin Schiller <ms@dev.tdt.de>
-Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
----
- arch/mips/pci/pci-lantiq.c | 8 ++++----
- 1 file changed, 4 insertions(+), 4 deletions(-)
-
-diff --git a/arch/mips/pci/pci-lantiq.c b/arch/mips/pci/pci-lantiq.c
-index 68a8cefed420..0844db34022e 100644
---- a/arch/mips/pci/pci-lantiq.c
-+++ b/arch/mips/pci/pci-lantiq.c
-@@ -124,14 +124,14 @@ static int ltq_pci_startup(struct platform_device *pdev)
- clk_disable(clk_external);
-
- /* setup reset gpio used by pci */
-- reset_gpio = devm_gpiod_get_optional(&pdev->dev, "reset",
-- GPIOD_OUT_LOW);
-+ reset_gpio = devm_gpiod_get_optional(&pdev->dev, "reset", GPIOD_ASIS);
- error = PTR_ERR_OR_ZERO(reset_gpio);
- if (error) {
- dev_err(&pdev->dev, "failed to request gpio: %d\n", error);
- return error;
- }
- gpiod_set_consumer_name(reset_gpio, "pci_reset");
-+ gpiod_direction_output(reset_gpio, 1);
-
- /* enable auto-switching between PCI and EBU */
- ltq_pci_w32(0xa, PCI_CR_CLK_CTRL);
-@@ -194,10 +194,10 @@ static int ltq_pci_startup(struct platform_device *pdev)
-
- /* toggle reset pin */
- if (reset_gpio) {
-- gpiod_set_value_cansleep(reset_gpio, 1);
-+ gpiod_set_value_cansleep(reset_gpio, 0);
- wmb();
- mdelay(1);
-- gpiod_set_value_cansleep(reset_gpio, 0);
-+ gpiod_set_value_cansleep(reset_gpio, 1);
- }
- return 0;
- }
---
-2.45.2
-
drm-amdgpu-fix-ubsan-warning-in-kv_dpm.c.patch
gcov-add-support-for-gcc-14.patch
kcov-don-t-lose-track-of-remote-references-during-softirqs.patch
-mips-pci-lantiq-restore-reset-gpio-polarity.patch
mm-mmap-allow-for-the-maximum-number-of-bits-for-randomizing-mmap_base-by-default.patch
tcp-clear-tp-retrans_stamp-in-tcp_rcv_fastopen_synack.patch
mm-page_table_check-fix-crash-on-zone_device.patch
+++ /dev/null
-From 277a0363120276645ae598d8d5fea7265e076ae9 Mon Sep 17 00:00:00 2001
-From: Martin Schiller <ms@dev.tdt.de>
-Date: Fri, 7 Jun 2024 11:04:00 +0200
-Subject: MIPS: pci: lantiq: restore reset gpio polarity
-
-From: Martin Schiller <ms@dev.tdt.de>
-
-commit 277a0363120276645ae598d8d5fea7265e076ae9 upstream.
-
-Commit 90c2d2eb7ab5 ("MIPS: pci: lantiq: switch to using gpiod API") not
-only switched to the gpiod API, but also inverted / changed the polarity
-of the GPIO.
-
-According to the PCI specification, the RST# pin is an active-low
-signal. However, most of the device trees that have been widely used for
-a long time (mainly in the openWrt project) define this GPIO as
-active-high and the old driver code inverted the signal internally.
-
-Apparently there are actually boards where the reset gpio must be
-operated inverted. For this reason, we cannot use the GPIOD_OUT_LOW/HIGH
-flag for initialization. Instead, we must explicitly set the gpio to
-value 1 in order to take into account any "GPIO_ACTIVE_LOW" flag that
-may have been set.
-
-In order to remain compatible with all these existing device trees, we
-should therefore keep the logic as it was before the commit.
-
-Fixes: 90c2d2eb7ab5 ("MIPS: pci: lantiq: switch to using gpiod API")
-Cc: stable@vger.kernel.org
-Signed-off-by: Martin Schiller <ms@dev.tdt.de>
-Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
----
- arch/mips/pci/pci-lantiq.c | 8 ++++----
- 1 file changed, 4 insertions(+), 4 deletions(-)
-
---- a/arch/mips/pci/pci-lantiq.c
-+++ b/arch/mips/pci/pci-lantiq.c
-@@ -124,14 +124,14 @@ static int ltq_pci_startup(struct platfo
- clk_disable(clk_external);
-
- /* setup reset gpio used by pci */
-- reset_gpio = devm_gpiod_get_optional(&pdev->dev, "reset",
-- GPIOD_OUT_LOW);
-+ reset_gpio = devm_gpiod_get_optional(&pdev->dev, "reset", GPIOD_ASIS);
- error = PTR_ERR_OR_ZERO(reset_gpio);
- if (error) {
- dev_err(&pdev->dev, "failed to request gpio: %d\n", error);
- return error;
- }
- gpiod_set_consumer_name(reset_gpio, "pci_reset");
-+ gpiod_direction_output(reset_gpio, 1);
-
- /* enable auto-switching between PCI and EBU */
- ltq_pci_w32(0xa, PCI_CR_CLK_CTRL);
-@@ -194,10 +194,10 @@ static int ltq_pci_startup(struct platfo
-
- /* toggle reset pin */
- if (reset_gpio) {
-- gpiod_set_value_cansleep(reset_gpio, 1);
-+ gpiod_set_value_cansleep(reset_gpio, 0);
- wmb();
- mdelay(1);
-- gpiod_set_value_cansleep(reset_gpio, 0);
-+ gpiod_set_value_cansleep(reset_gpio, 1);
- }
- return 0;
- }
kcov-don-t-lose-track-of-remote-references-during-softirqs.patch
efi-x86-free-efi-memory-map-only-when-installing-a-new-one.patch
serial-8250_dw-revert-move-definitions-to-the-shared-header.patch
-mips-pci-lantiq-restore-reset-gpio-polarity.patch
mm-mmap-allow-for-the-maximum-number-of-bits-for-randomizing-mmap_base-by-default.patch
tcp-clear-tp-retrans_stamp-in-tcp_rcv_fastopen_synack.patch
mm-page_table_check-fix-crash-on-zone_device.patch
+++ /dev/null
-From 277a0363120276645ae598d8d5fea7265e076ae9 Mon Sep 17 00:00:00 2001
-From: Martin Schiller <ms@dev.tdt.de>
-Date: Fri, 7 Jun 2024 11:04:00 +0200
-Subject: MIPS: pci: lantiq: restore reset gpio polarity
-
-From: Martin Schiller <ms@dev.tdt.de>
-
-commit 277a0363120276645ae598d8d5fea7265e076ae9 upstream.
-
-Commit 90c2d2eb7ab5 ("MIPS: pci: lantiq: switch to using gpiod API") not
-only switched to the gpiod API, but also inverted / changed the polarity
-of the GPIO.
-
-According to the PCI specification, the RST# pin is an active-low
-signal. However, most of the device trees that have been widely used for
-a long time (mainly in the openWrt project) define this GPIO as
-active-high and the old driver code inverted the signal internally.
-
-Apparently there are actually boards where the reset gpio must be
-operated inverted. For this reason, we cannot use the GPIOD_OUT_LOW/HIGH
-flag for initialization. Instead, we must explicitly set the gpio to
-value 1 in order to take into account any "GPIO_ACTIVE_LOW" flag that
-may have been set.
-
-In order to remain compatible with all these existing device trees, we
-should therefore keep the logic as it was before the commit.
-
-Fixes: 90c2d2eb7ab5 ("MIPS: pci: lantiq: switch to using gpiod API")
-Cc: stable@vger.kernel.org
-Signed-off-by: Martin Schiller <ms@dev.tdt.de>
-Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
----
- arch/mips/pci/pci-lantiq.c | 8 ++++----
- 1 file changed, 4 insertions(+), 4 deletions(-)
-
---- a/arch/mips/pci/pci-lantiq.c
-+++ b/arch/mips/pci/pci-lantiq.c
-@@ -124,14 +124,14 @@ static int ltq_pci_startup(struct platfo
- clk_disable(clk_external);
-
- /* setup reset gpio used by pci */
-- reset_gpio = devm_gpiod_get_optional(&pdev->dev, "reset",
-- GPIOD_OUT_LOW);
-+ reset_gpio = devm_gpiod_get_optional(&pdev->dev, "reset", GPIOD_ASIS);
- error = PTR_ERR_OR_ZERO(reset_gpio);
- if (error) {
- dev_err(&pdev->dev, "failed to request gpio: %d\n", error);
- return error;
- }
- gpiod_set_consumer_name(reset_gpio, "pci_reset");
-+ gpiod_direction_output(reset_gpio, 1);
-
- /* enable auto-switching between PCI and EBU */
- ltq_pci_w32(0xa, PCI_CR_CLK_CTRL);
-@@ -194,10 +194,10 @@ static int ltq_pci_startup(struct platfo
-
- /* toggle reset pin */
- if (reset_gpio) {
-- gpiod_set_value_cansleep(reset_gpio, 1);
-+ gpiod_set_value_cansleep(reset_gpio, 0);
- wmb();
- mdelay(1);
-- gpiod_set_value_cansleep(reset_gpio, 0);
-+ gpiod_set_value_cansleep(reset_gpio, 1);
- }
- return 0;
- }
kcov-don-t-lose-track-of-remote-references-during-softirqs.patch
efi-x86-free-efi-memory-map-only-when-installing-a-new-one.patch
serial-8250_dw-revert-move-definitions-to-the-shared-header.patch
-mips-pci-lantiq-restore-reset-gpio-polarity.patch
mips-mipsmtregs-fix-target-register-for-mftc0.patch
mm-mmap-allow-for-the-maximum-number-of-bits-for-randomizing-mmap_base-by-default.patch
mm-huge_memory-fix-misused-mapping_large_folio_support-for-anon-folios.patch
projects / thirdparty / kernel / stable-queue.git / commitdiff
