+++ /dev/null
-From 964ad1e439a2da7e7dd136d9bc4930a1bbb55e17 Mon Sep 17 00:00:00 2001
-From: Sasha Levin <sashal@kernel.org>
-Date: Tue, 8 Apr 2025 19:22:47 +0200
-Subject: serial: msm: Configure correct working mode before starting earlycon
-
-From: Stephan Gerhold <stephan.gerhold@linaro.org>
-
-[ Upstream commit 7094832b5ac861b0bd7ed8866c93cb15ef619996 ]
-
-The MSM UART DM controller supports different working modes, e.g. DMA or
-the "single-character mode", where all reads/writes operate on a single
-character rather than 4 chars (32-bit) at once. When using earlycon,
-__msm_console_write() always writes 4 characters at a time, but we don't
-know which mode the bootloader was using and we don't set the mode either.
-
-This causes garbled output if the bootloader was using the single-character
-mode, because only every 4th character appears in the serial console, e.g.
-
- "[ 00oni pi 000xf0[ 00i s 5rm9(l)l s 1 1 SPMTA 7:C 5[ 00A ade k d[
- 00ano:ameoi .Q1B[ 00ac _idaM00080oo'"
-
-If the bootloader was using the DMA ("DM") mode, output would likely fail
-entirely. Later, when the full serial driver probes, the port is
-re-initialized and output works as expected.
-
-Fix this also for earlycon by clearing the DMEN register and
-reset+re-enable the transmitter to apply the change. This ensures the
-transmitter is in the expected state before writing any output.
-
-Cc: stable <stable@kernel.org>
-Fixes: 0efe72963409 ("tty: serial: msm: Add earlycon support")
-Signed-off-by: Stephan Gerhold <stephan.gerhold@linaro.org>
-Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
-Link: https://lore.kernel.org/r/20250408-msm-serial-earlycon-v1-1-429080127530@linaro.org
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-Signed-off-by: Sasha Levin <sashal@kernel.org>
----
- drivers/tty/serial/msm_serial.c | 6 ++++++
- 1 file changed, 6 insertions(+)
-
-diff --git a/drivers/tty/serial/msm_serial.c b/drivers/tty/serial/msm_serial.c
-index 27023a56f3ac1..ab05d922d97bf 100644
---- a/drivers/tty/serial/msm_serial.c
-+++ b/drivers/tty/serial/msm_serial.c
-@@ -1737,6 +1737,12 @@ msm_serial_early_console_setup_dm(struct earlycon_device *device,
- if (!device->port.membase)
- return -ENODEV;
-
-+ /* Disable DM / single-character modes */
-+ msm_write(&device->port, 0, UARTDM_DMEN);
-+ msm_write(&device->port, MSM_UART_CR_CMD_RESET_RX, MSM_UART_CR);
-+ msm_write(&device->port, MSM_UART_CR_CMD_RESET_TX, MSM_UART_CR);
-+ msm_write(&device->port, MSM_UART_CR_TX_ENABLE, MSM_UART_CR);
-+
- device->con->write = msm_serial_early_write_dm;
- return 0;
- }
---
-2.39.5
-
irqchip-gic-v2m-prevent-use-after-free-of-gicv2m_get.patch
usb-chipidea-ci_hdrc_imx-use-dev_err_probe.patch
usb-chipidea-ci_hdrc_imx-implement-usb_phy_init-erro.patch
-serial-msm-configure-correct-working-mode-before-sta.patch
dm-fix-copying-after-src-array-boundaries.patch
+++ /dev/null
-From 7ca7c5e6908c8a1e9ce3c1d33577705f99f017bb Mon Sep 17 00:00:00 2001
-From: Sasha Levin <sashal@kernel.org>
-Date: Tue, 8 Apr 2025 19:22:47 +0200
-Subject: serial: msm: Configure correct working mode before starting earlycon
-
-From: Stephan Gerhold <stephan.gerhold@linaro.org>
-
-[ Upstream commit 7094832b5ac861b0bd7ed8866c93cb15ef619996 ]
-
-The MSM UART DM controller supports different working modes, e.g. DMA or
-the "single-character mode", where all reads/writes operate on a single
-character rather than 4 chars (32-bit) at once. When using earlycon,
-__msm_console_write() always writes 4 characters at a time, but we don't
-know which mode the bootloader was using and we don't set the mode either.
-
-This causes garbled output if the bootloader was using the single-character
-mode, because only every 4th character appears in the serial console, e.g.
-
- "[ 00oni pi 000xf0[ 00i s 5rm9(l)l s 1 1 SPMTA 7:C 5[ 00A ade k d[
- 00ano:ameoi .Q1B[ 00ac _idaM00080oo'"
-
-If the bootloader was using the DMA ("DM") mode, output would likely fail
-entirely. Later, when the full serial driver probes, the port is
-re-initialized and output works as expected.
-
-Fix this also for earlycon by clearing the DMEN register and
-reset+re-enable the transmitter to apply the change. This ensures the
-transmitter is in the expected state before writing any output.
-
-Cc: stable <stable@kernel.org>
-Fixes: 0efe72963409 ("tty: serial: msm: Add earlycon support")
-Signed-off-by: Stephan Gerhold <stephan.gerhold@linaro.org>
-Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
-Link: https://lore.kernel.org/r/20250408-msm-serial-earlycon-v1-1-429080127530@linaro.org
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-Signed-off-by: Sasha Levin <sashal@kernel.org>
----
- drivers/tty/serial/msm_serial.c | 6 ++++++
- 1 file changed, 6 insertions(+)
-
-diff --git a/drivers/tty/serial/msm_serial.c b/drivers/tty/serial/msm_serial.c
-index 03ff63438e772..9740bc301cc27 100644
---- a/drivers/tty/serial/msm_serial.c
-+++ b/drivers/tty/serial/msm_serial.c
-@@ -1732,6 +1732,12 @@ msm_serial_early_console_setup_dm(struct earlycon_device *device,
- if (!device->port.membase)
- return -ENODEV;
-
-+ /* Disable DM / single-character modes */
-+ msm_write(&device->port, 0, UARTDM_DMEN);
-+ msm_write(&device->port, MSM_UART_CR_CMD_RESET_RX, MSM_UART_CR);
-+ msm_write(&device->port, MSM_UART_CR_CMD_RESET_TX, MSM_UART_CR);
-+ msm_write(&device->port, MSM_UART_CR_TX_ENABLE, MSM_UART_CR);
-+
- device->con->write = msm_serial_early_write_dm;
- return 0;
- }
---
-2.39.5
-
irqchip-gic-v2m-add-const-to-of_device_id.patch
irqchip-gic-v2m-mark-a-few-functions-__init.patch
irqchip-gic-v2m-prevent-use-after-free-of-gicv2m_get.patch
-serial-msm-configure-correct-working-mode-before-sta.patch
riscv-uprobes-add-missing-fence.i-after-building-the.patch
iommu-arm-smmu-v3-use-the-new-rb-tree-helpers.patch
iommu-arm-smmu-v3-fix-iommu_device_probe-bug-due-to-.patch
+++ /dev/null
-From cd32bfe2999d38f1d98169cccf751654239fd616 Mon Sep 17 00:00:00 2001
-From: Sasha Levin <sashal@kernel.org>
-Date: Tue, 8 Apr 2025 19:22:47 +0200
-Subject: serial: msm: Configure correct working mode before starting earlycon
-
-From: Stephan Gerhold <stephan.gerhold@linaro.org>
-
-[ Upstream commit 7094832b5ac861b0bd7ed8866c93cb15ef619996 ]
-
-The MSM UART DM controller supports different working modes, e.g. DMA or
-the "single-character mode", where all reads/writes operate on a single
-character rather than 4 chars (32-bit) at once. When using earlycon,
-__msm_console_write() always writes 4 characters at a time, but we don't
-know which mode the bootloader was using and we don't set the mode either.
-
-This causes garbled output if the bootloader was using the single-character
-mode, because only every 4th character appears in the serial console, e.g.
-
- "[ 00oni pi 000xf0[ 00i s 5rm9(l)l s 1 1 SPMTA 7:C 5[ 00A ade k d[
- 00ano:ameoi .Q1B[ 00ac _idaM00080oo'"
-
-If the bootloader was using the DMA ("DM") mode, output would likely fail
-entirely. Later, when the full serial driver probes, the port is
-re-initialized and output works as expected.
-
-Fix this also for earlycon by clearing the DMEN register and
-reset+re-enable the transmitter to apply the change. This ensures the
-transmitter is in the expected state before writing any output.
-
-Cc: stable <stable@kernel.org>
-Fixes: 0efe72963409 ("tty: serial: msm: Add earlycon support")
-Signed-off-by: Stephan Gerhold <stephan.gerhold@linaro.org>
-Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
-Link: https://lore.kernel.org/r/20250408-msm-serial-earlycon-v1-1-429080127530@linaro.org
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-Signed-off-by: Sasha Levin <sashal@kernel.org>
----
- drivers/tty/serial/msm_serial.c | 6 ++++++
- 1 file changed, 6 insertions(+)
-
-diff --git a/drivers/tty/serial/msm_serial.c b/drivers/tty/serial/msm_serial.c
-index aac96659694d6..202893877165b 100644
---- a/drivers/tty/serial/msm_serial.c
-+++ b/drivers/tty/serial/msm_serial.c
-@@ -1723,6 +1723,12 @@ msm_serial_early_console_setup_dm(struct earlycon_device *device,
- if (!device->port.membase)
- return -ENODEV;
-
-+ /* Disable DM / single-character modes */
-+ msm_write(&device->port, 0, UARTDM_DMEN);
-+ msm_write(&device->port, MSM_UART_CR_CMD_RESET_RX, MSM_UART_CR);
-+ msm_write(&device->port, MSM_UART_CR_CMD_RESET_TX, MSM_UART_CR);
-+ msm_write(&device->port, MSM_UART_CR_TX_ENABLE, MSM_UART_CR);
-+
- device->con->write = msm_serial_early_write_dm;
- return 0;
- }
---
-2.39.5
-
usb-chipidea-imx-refine-the-error-handling-for-hsic.patch
usb-chipidea-ci_hdrc_imx-use-dev_err_probe.patch
usb-chipidea-ci_hdrc_imx-implement-usb_phy_init-erro.patch
-serial-msm-configure-correct-working-mode-before-sta.patch
arm64-dts-rockchip-fix-iface-clock-name-on-px30-iomm.patch
iommu-amd-fix-potential-buffer-overflow-in-parse_ivr.patch
dm-fix-copying-after-src-array-boundaries.patch
projects / thirdparty / kernel / stable-queue.git / commitdiff
