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bcm27xx: update to latest RPi patches

Browse Source 
The patches were generated from the RPi repo with the following command:
git format-patch v6.6.36..rpi-6.6.y

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
This commit is contained in:
Álvaro Fernández Rojas 2024-07-03 20:30:59 +02:00
parent 680944ce88
commit e74ead2249
10 changed files with 495 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
target/linux/bcm27xx/patches-6.6/950-0967-dmaengine-dw-axi-dmac-Fix-a-non-atomic-update.patch
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@ -30,7 +30,7 @@ Signed-off-by: Phil Elwell <phil@raspberrypi.com>
--- a/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c
+++ b/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c
@@ -466,8 +466,6 @@ static void axi_chan_block_xfer_start(st
@@ -389,8 +389,6 @@ static void axi_chan_block_xfer_start(st
return;
}

2
target/linux/bcm27xx/patches-6.6/950-1047-dw-axi-dmac-platform-Avoid-trampling-with-zero-lengt.patch
View File

@ -22,7 +22,7 @@ Signed-off-by: Dom Cobley <popcornmix@gmail.com>
--- a/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c
+++ b/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c
@@ -917,6 +917,9 @@ dw_axi_dma_chan_prep_slave_sg(struct dma
@@ -834,6 +834,9 @@ dw_axi_dma_chan_prep_slave_sg(struct dma
mem = sg_dma_address(sg);
len = sg_dma_len(sg);
num_segments = DIV_ROUND_UP(sg_dma_len(sg), axi_block_len);

52
target/linux/bcm27xx/patches-6.6/950-1133-drivers-mmc-sdhci-brcmstb-improve-bcm2712-card-remov.patch Normal file
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@ -0,0 +1,52 @@
From 5c0f94088e0694220a2f0d8ad6e8216b50a80f2e Mon Sep 17 00:00:00 2001
From: Jonathan Bell <jonathan@raspberrypi.com>
Date: Thu, 13 Jun 2024 15:01:02 +0100
Subject: [PATCH 1133/1145] drivers: mmc: sdhci-brcmstb: improve bcm2712 card
removal handling
If the controller is being reset, then the CQE needs to be reset as well.
For removable cards, CQHCI_SSC1 must specify a polling mode (CBC=0)
otherwise it's possible that the controller stops emitting periodic
CMD13s on card removal, without raising an error status interrupt.
Signed-off-by: Jonathan Bell <jonathan@raspberrypi.com>
---
drivers/mmc/host/sdhci-brcmstb.c | 19 ++++++++++++++++---
1 file changed, 16 insertions(+), 3 deletions(-)
--- a/drivers/mmc/host/sdhci-brcmstb.c
+++ b/drivers/mmc/host/sdhci-brcmstb.c
@@ -365,8 +365,21 @@ static void sdhci_brcmstb_cqe_enable(str
sdhci_cqe_enable(mmc);
- /* Reset CMD13 polling timer back to eMMC specification default */
- cqhci_writel(cq_host, 0x00011000, CQHCI_SSC1);
+ /*
+ * The controller resets this register to a very short default interval
+ * whenever CQHCI is disabled.
+ *
+ * For removable cards CBC needs to be clear or card removal can hang
+ * the CQE. In polling mode, a CIT of 0x4000 "cycles" seems to produce the best
+ * throughput.
+ *
+ * For nonremovable cards, the specification default of CBC=1 CIT=0x1000
+ * suffices.
+ */
+ if (mmc->caps & MMC_CAP_NONREMOVABLE)
+ cqhci_writel(cq_host, 0x00011000, CQHCI_SSC1);
+ else
+ cqhci_writel(cq_host, 0x00004000, CQHCI_SSC1);
}
static const struct cqhci_host_ops sdhci_brcmstb_cqhci_ops = {
@@ -386,7 +399,7 @@ static struct sdhci_ops sdhci_brcmstb_op
.set_clock = sdhci_bcm2712_set_clock,
.set_power = sdhci_brcmstb_set_power,
.set_bus_width = sdhci_set_bus_width,
- .reset = sdhci_reset,
+ .reset = brcmstb_reset,
.set_uhs_signaling = sdhci_set_uhs_signaling,
.init_sd_express = bcm2712_init_sd_express,
};

193
target/linux/bcm27xx/patches-6.6/950-1136-feat-Add-support-for-SunFounder-PiPower-3-overlay.patch Normal file
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@ -0,0 +1,193 @@
From a1d3defcca200077e1e382fe049ca613d16efd2b Mon Sep 17 00:00:00 2001
From: Cavon Lee <cavonxx@gmail.com>
Date: Tue, 18 Jun 2024 14:01:23 +0800
Subject: [PATCH 1136/1145] feat: Add support for SunFounder PiPower 3 overlay
fix: Fix wrong Pironman 5 ir default pin number fix: Change space indentation
to tab
Signed-off-by: Cavon Lee <cavonxx@gmail.com>
---
arch/arm/boot/dts/overlays/Makefile | 1 +
arch/arm/boot/dts/overlays/README | 8 +-
.../overlays/sunfounder-pipower3-overlay.dts | 44 ++++++++++
.../overlays/sunfounder-pironman5-overlay.dts | 88 ++++++++++---------
4 files changed, 98 insertions(+), 43 deletions(-)
create mode 100644 arch/arm/boot/dts/overlays/sunfounder-pipower3-overlay.dts
--- a/arch/arm/boot/dts/overlays/Makefile
+++ b/arch/arm/boot/dts/overlays/Makefile
@@ -275,6 +275,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
ssd1306-spi.dtbo \
ssd1331-spi.dtbo \
ssd1351-spi.dtbo \
+ sunfounder-pipower3.dtbo \
sunfounder-pironman5.dtbo \
superaudioboard.dtbo \
sx150x.dtbo \
--- a/arch/arm/boot/dts/overlays/README
+++ b/arch/arm/boot/dts/overlays/README
@@ -4695,11 +4695,17 @@ Params: speed SPI bus
reset_pin GPIO pin for RESET (default 25)
+Name: sunfounder-pipower3
+Info: Overlay for SunFounder PiPower 3
+Load: dtoverlay=sunfounder-pipower3,<param>=<val>
+Params: poweroff_pin Change poweroff pin (default 26)
+
+
Name: sunfounder-pironman5
Info: Overlay for SunFounder Pironman 5
Load: dtoverlay=sunfounder-pironman5,<param>=<val>
Params: ir Enable IR or not (on or off, default on)
- ir_pins Change IR receiver pin (default 12)
+ ir_pins Change IR receiver pin (default 13)
Name: superaudioboard
--- /dev/null
+++ b/arch/arm/boot/dts/overlays/sunfounder-pipower3-overlay.dts
@@ -0,0 +1,44 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "brcm,bcm2835";
+
+ fragment@0 {
+ target-path = "/chosen";
+ __overlay__ {
+ power: power {
+ hat_current_supply = <5000>;
+ };
+ };
+ };
+ fragment@1 {
+ target = <&i2c1>;
+ __overlay__ {
+ status = "okay";
+ };
+ };
+ fragment@2 {
+ target-path = "/";
+ __overlay__ {
+ power_ctrl: power_ctrl {
+ compatible = "gpio-poweroff";
+ gpios = <&gpio 26 0>;
+ force;
+ };
+ };
+ };
+ fragment@3 {
+ target = <&gpio>;
+ __overlay__ {
+ power_ctrl_pins: power_ctrl_pins {
+ brcm,pins = <26>;
+ brcm,function = <1>; // out
+ };
+ };
+ };
+ __overrides__ {
+ poweroff_pin = <&power_ctrl>,"gpios:4",
+ <&power_ctrl_pins>,"brcm,pins:0";
+ };
+};
--- a/arch/arm/boot/dts/overlays/sunfounder-pironman5-overlay.dts
+++ b/arch/arm/boot/dts/overlays/sunfounder-pironman5-overlay.dts
@@ -2,50 +2,54 @@
/plugin/;
/ {
- compatible = "brcm,bcm2835";
+ compatible = "brcm,bcm2835";
- fragment@0 {
- target = <&i2c1>;
- __overlay__ {
- status = "okay";
- };
- };
- fragment@1 {
- target = <&spi0>;
- __overlay__ {
- status = "okay";
- };
- };
- fragment@2 {
- target-path = "/";
- __overlay__ {
- gpio_ir: ir-receiver@c {
- compatible = "gpio-ir-receiver";
- pinctrl-names = "default";
- pinctrl-0 = <&gpio_ir_pins>;
+ fragment@0 {
+ target = <&i2c1>;
+ __overlay__ {
+ status = "okay";
+ };
+ };
+ fragment@1 {
+ target = <&spi0>;
+ __overlay__ {
+ status = "okay";
+ };
+ };
+ fragment@2 {
+ target-path = "/";
+ __overlay__ {
+ gpio_ir: ir-receiver@d {
+ compatible = "gpio-ir-receiver";
+ pinctrl-names = "default";
+ pinctrl-0 = <&gpio_ir_pins>;
- // pin number, high or low
- gpios = <&gpio 12 1>;
+ // pin number, high or low
+ gpios = <&gpio 13 1>;
- // parameter for keymap name
- linux,rc-map-name = "rc-rc6-mce";
+ // parameter for keymap name
+ linux,rc-map-name = "rc-rc6-mce";
- status = "okay";
- };
- };
- };
- fragment@3 {
- target = <&gpio>;
- __overlay__ {
- gpio_ir_pins: gpio_ir_pins@c {
- brcm,pins = <12>;
- brcm,function = <0>;
- brcm,pull = <2>;
- };
- };
- };
- __overrides__ {
- ir = <&gpio_ir>,"status";
- ir_pins = <&gpio_ir>,"gpios:4", <&gpio_ir>,"reg:0", <&gpio_ir_pins>,"brcm,pins:0", <&gpio_ir_pins>,"reg:0";
- };
+ status = "okay";
+ };
+ };
+ };
+ fragment@3 {
+ target = <&gpio>;
+ __overlay__ {
+ gpio_ir_pins: gpio_ir_pins@d {
+ brcm,pins = <13>;
+ brcm,function = <0>;
+ brcm,pull = <2>;
+ };
+ };
+ };
+ __overrides__ {
+ ir = <&gpio_ir>,"status";
+ ir_pins =
+ <&gpio_ir>,"gpios:4",
+ <&gpio_ir>,"reg:0",
+ <&gpio_ir_pins>,"brcm,pins:0",
+ <&gpio_ir_pins>,"reg:0";
+ };
};

32
target/linux/bcm27xx/patches-6.6/950-1137-pwm-gpio-pwm-follow-pwm_apply_might_sleep-rename.patch Normal file
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@ -0,0 +1,32 @@
From cd92a9591833ea06d1f12391f6b027fcecf436a9 Mon Sep 17 00:00:00 2001
From: Ratchanan Srirattanamet <peathot@hotmail.com>
Date: Tue, 18 Jun 2024 15:44:13 +0700
Subject: [PATCH 1137/1145] pwm: gpio-pwm: follow pwm_apply_might_sleep()
rename
Fixes: 03286093be68("drivers/gpio: Add a driver that wraps the PWM API as a GPIO controller")
Signed-off-by: Ratchanan Srirattanamet <peathot@hotmail.com>
---
drivers/gpio/gpio-pwm.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/gpio/gpio-pwm.c
+++ b/drivers/gpio/gpio-pwm.c
@@ -34,7 +34,7 @@ static void pwm_gpio_set(struct gpio_chi
pwm_get_state(pwm_gpio->pwm[off], &state);
state.duty_cycle = val ? state.period : 0;
- pwm_apply_state(pwm_gpio->pwm[off], &state);
+ pwm_apply_might_sleep(pwm_gpio->pwm[off], &state);
}
static int pwm_gpio_parse_dt(struct pwm_gpio *pwm_gpio,
@@ -79,7 +79,7 @@ static int pwm_gpio_parse_dt(struct pwm_
pwm_init_state(pwm_gpio->pwm[i], &state);
state.duty_cycle = 0;
- pwm_apply_state(pwm_gpio->pwm[i], &state);
+ pwm_apply_might_sleep(pwm_gpio->pwm[i], &state);
}
pwm_gpio->gc.ngpio = num_gpios;

29
target/linux/bcm27xx/patches-6.6/950-1138-drm-bridge-panel-Ensure-backlight-is-reachable.patch Normal file
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@ -0,0 +1,29 @@
From da87f91ad8450ccc5274cd7b6ba8d823b396c96f Mon Sep 17 00:00:00 2001
From: Dave Stevenson <dave.stevenson@raspberrypi.com>
Date: Tue, 18 Jun 2024 15:33:30 +0100
Subject: [PATCH 1138/1145] drm/bridge: panel: Ensure backlight is reachable
Ensure that the various options of modules vs builtin results
in being able to call into the backlight code.
https://github.com/raspberrypi/linux/issues/6198
Fixes: 573f8fd0abf1 ("drm/bridge: panel: Name an associated backlight device")
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
---
drivers/gpu/drm/bridge/panel.c | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/gpu/drm/bridge/panel.c
+++ b/drivers/gpu/drm/bridge/panel.c
@@ -87,8 +87,10 @@ static int panel_bridge_attach(struct dr
drm_connector_attach_encoder(&panel_bridge->connector,
bridge->encoder);
+#if IS_REACHABLE(CONFIG_BACKLIGHT_CLASS_DEVICE)
backlight_set_display_name(panel_bridge->panel->backlight,
panel_bridge->connector.name);
+#endif
if (bridge->dev->registered) {
if (connector->funcs->reset)

36
target/linux/bcm27xx/patches-6.6/950-1141-fs-ntfs3-Fix-memory-corruption-when-page_size-change.patch Normal file
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@ -0,0 +1,36 @@
From 7af85d54e39733bb9a236b95ea5ed1ab8277d560 Mon Sep 17 00:00:00 2001
From: Dom Cobley <popcornmix@gmail.com>
Date: Tue, 11 Jun 2024 16:12:47 +0100
Subject: [PATCH 1141/1145] fs/ntfs3: Fix memory corruption when page_size
changes
The rework in fs/ntfs3: Reduce stack usage
changes log->page_size but doesn't change the associated
log->page_mask and log->page_bits.
That results in the bytes value in read_log_page
getting a negative value, which is bad when it is
passed to memcpy.
The kernel panic can be observed when connecting an
ntfs formatted drive that has previously been connected
to a Windows machine to a Raspberry Pi 5, which by defauilt
uses a 16K kernel pagesize.
Fixes: 865e7a7700d9 ("fs/ntfs3: Reduce stack usage")
Signed-off-by: Dom Cobley <popcornmix@gmail.com>
---
fs/ntfs3/fslog.c | 2 ++
1 file changed, 2 insertions(+)
--- a/fs/ntfs3/fslog.c
+++ b/fs/ntfs3/fslog.c
@@ -3907,6 +3907,8 @@ check_restart_area:
log->l_size = log->orig_file_size;
log->page_size = norm_file_page(t32, &log->l_size,
t32 == DefaultLogPageSize);
+ log->page_mask = log->page_size - 1;
+ log->page_bits = blksize_bits(log->page_size);
}
if (log->page_size != t32 ||

26
target/linux/bcm27xx/patches-6.6/950-1142-fixup-drivers-mmc-sdhci-brcmstb-bcm2712-supports-HS4.patch Normal file
View File

@ -0,0 +1,26 @@
From d2813c02131b9ddf938277f4123da7ccbd113ea7 Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.com>
Date: Mon, 24 Jun 2024 22:35:42 +0100
Subject: [PATCH 1142/1145] fixup! drivers: mmc: sdhci-brcmstb: bcm2712
supports HS400es and clock gating
Declaring auto-clockgate support for a host that can interface with
SDIO cards is a bug.
See: https://github.com/raspberrypi/linux/issues/6237
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
---
drivers/mmc/host/sdhci-brcmstb.c | 1 -
1 file changed, 1 deletion(-)
--- a/drivers/mmc/host/sdhci-brcmstb.c
+++ b/drivers/mmc/host/sdhci-brcmstb.c
@@ -429,7 +429,6 @@ static const struct brcmstb_match_priv m
};
static const struct brcmstb_match_priv match_priv_2712 = {
- .flags = BRCMSTB_MATCH_FLAGS_HAS_CLOCK_GATE,
.hs400es = sdhci_brcmstb_hs400es,
.cfginit = sdhci_brcmstb_cfginit_2712,
.ops = &sdhci_brcmstb_ops_2712,

54
target/linux/bcm27xx/patches-6.6/950-0536-dmaengine-dw-axi-dmac-Fixes-for-RP1.patch → target/linux/bcm27xx/patches-6.6/950-1144-dmaengine-dw-axi-dmac-Fixes-for-RP1.patch
View File

@ -1,7 +1,7 @@
From c6cd3e6878e32548ea90c4160c534e952221c194 Mon Sep 17 00:00:00 2001
From 3b42260d2130b5ca110c5340ab2bd055eede5968 Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.com>
Date: Wed, 28 Apr 2021 17:46:01 +0100
Subject: [PATCH 0536/1085] dmaengine: dw-axi-dmac: Fixes for RP1
Subject: [PATCH 1144/1145] dmaengine: dw-axi-dmac: Fixes for RP1
Don't assume that DMA addresses of devices are the same as their
physical addresses - convert correctly.
@ -42,9 +42,9 @@ to the source register width.
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
---
.../dma/dw-axi-dmac/dw-axi-dmac-platform.c | 132 +++++++++++++++---
.../dma/dw-axi-dmac/dw-axi-dmac-platform.c | 136 +++++++++++++++---
drivers/dma/dw-axi-dmac/dw-axi-dmac.h | 1 +
2 files changed, 113 insertions(+), 20 deletions(-)
2 files changed, 116 insertions(+), 21 deletions(-)
--- a/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c
+++ b/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c
@ -93,7 +93,15 @@ Signed-off-by: Phil Elwell <phil@raspberrypi.com>
for (i = 0; i < chip->dw->hdata->nr_channels; i++) {
axi_chan_irq_disable(&chip->dw->chan[i], DWAXIDMAC_IRQ_ALL);
axi_chan_disable(&chip->dw->chan[i]);
@@ -283,7 +306,7 @@ static struct axi_dma_lli *axi_desc_get(
@@ -256,7 +279,6 @@ static struct axi_dma_desc *axi_desc_all
kfree(desc);
return NULL;
}
- desc->nr_hw_descs = num;
return desc;
}
@@ -283,7 +305,7 @@ static struct axi_dma_lli *axi_desc_get(
static void axi_desc_put(struct axi_dma_desc *desc)
{
struct axi_dma_chan *chan = desc->chan;
@ -102,7 +110,7 @@ Signed-off-by: Phil Elwell <phil@raspberrypi.com>
struct axi_dma_hw_desc *hw_desc;
int descs_put;
@@ -305,6 +328,48 @@ static void vchan_desc_put(struct virt_d
@@ -305,6 +327,48 @@ static void vchan_desc_put(struct virt_d
axi_desc_put(vd_to_axi_desc(vdesc));
}
@ -151,7 +159,7 @@ Signed-off-by: Phil Elwell <phil@raspberrypi.com>
static enum dma_status
dma_chan_tx_status(struct dma_chan *dchan, dma_cookie_t cookie,
struct dma_tx_state *txstate)
@@ -314,10 +379,7 @@ dma_chan_tx_status(struct dma_chan *dcha
@@ -314,10 +378,7 @@ dma_chan_tx_status(struct dma_chan *dcha
enum dma_status status;
u32 completed_length;
unsigned long flags;
@ -162,7 +170,7 @@ Signed-off-by: Phil Elwell <phil@raspberrypi.com>
status = dma_cookie_status(dchan, cookie, txstate);
if (status == DMA_COMPLETE || !txstate)
@@ -326,16 +388,31 @@ dma_chan_tx_status(struct dma_chan *dcha
@@ -326,16 +387,31 @@ dma_chan_tx_status(struct dma_chan *dcha
spin_lock_irqsave(&chan->vc.lock, flags);
vdesc = vchan_find_desc(&chan->vc, cookie);
@ -201,7 +209,7 @@ Signed-off-by: Phil Elwell <phil@raspberrypi.com>
return status;
}
@@ -523,7 +600,7 @@ static void dw_axi_dma_set_hw_channel(st
@@ -521,7 +597,7 @@ static void dw_axi_dma_set_hw_channel(st
unsigned long reg_value, val;
if (!chip->apb_regs) {
@ -210,7 +218,7 @@ Signed-off-by: Phil Elwell <phil@raspberrypi.com>
return;
}
@@ -627,18 +704,25 @@ static int dw_axi_dma_set_hw_desc(struct
@@ -625,18 +701,25 @@ static int dw_axi_dma_set_hw_desc(struct
switch (chan->direction) {
case DMA_MEM_TO_DEV:
reg_width = __ffs(chan->config.dst_addr_width);
@ -238,7 +246,7 @@ Signed-off-by: Phil Elwell <phil@raspberrypi.com>
DWAXIDMAC_CH_CTL_L_INC << CH_CTL_L_DST_INC_POS |
DWAXIDMAC_CH_CTL_L_NOINC << CH_CTL_L_SRC_INC_POS;
block_ts = len >> reg_width;
@@ -674,9 +758,6 @@ static int dw_axi_dma_set_hw_desc(struct
@@ -672,9 +755,6 @@ static int dw_axi_dma_set_hw_desc(struct
}
hw_desc->lli->block_ts_lo = cpu_to_le32(block_ts - 1);
@ -248,7 +256,7 @@ Signed-off-by: Phil Elwell <phil@raspberrypi.com>
hw_desc->lli->ctl_lo = cpu_to_le32(ctllo);
set_desc_src_master(hw_desc);
@@ -771,6 +852,8 @@ dw_axi_dma_chan_prep_cyclic(struct dma_c
@@ -769,6 +849,8 @@ dw_axi_dma_chan_prep_cyclic(struct dma_c
src_addr += segment_len;
}
@ -257,7 +265,7 @@ Signed-off-by: Phil Elwell <phil@raspberrypi.com>
llp = desc->hw_desc[0].llp;
/* Managed transfer list */
@@ -850,6 +933,8 @@ dw_axi_dma_chan_prep_slave_sg(struct dma
@@ -851,6 +933,8 @@ dw_axi_dma_chan_prep_slave_sg(struct dma
} while (len >= segment_len);
}
@ -266,7 +274,7 @@ Signed-off-by: Phil Elwell <phil@raspberrypi.com>
/* Set end-of-link to the last link descriptor of list */
set_desc_last(&desc->hw_desc[num_sgs - 1]);
@@ -957,6 +1042,8 @@ dma_chan_prep_dma_memcpy(struct dma_chan
@@ -958,6 +1042,8 @@ dma_chan_prep_dma_memcpy(struct dma_chan
num++;
}
@ -275,7 +283,7 @@ Signed-off-by: Phil Elwell <phil@raspberrypi.com>
/* Set end-of-link to the last link descriptor of list */
set_desc_last(&desc->hw_desc[num - 1]);
/* Managed transfer list */
@@ -1005,7 +1092,7 @@ static void axi_chan_dump_lli(struct axi
@@ -1006,7 +1092,7 @@ static void axi_chan_dump_lli(struct axi
static void axi_chan_list_dump_lli(struct axi_dma_chan *chan,
struct axi_dma_desc *desc_head)
{
@ -284,7 +292,7 @@ Signed-off-by: Phil Elwell <phil@raspberrypi.com>
int i;
for (i = 0; i < count; i++)
@@ -1048,11 +1135,11 @@ out:
@@ -1049,11 +1135,11 @@ out:
static void axi_chan_block_xfer_complete(struct axi_dma_chan *chan)
{
@ -297,7 +305,7 @@ Signed-off-by: Phil Elwell <phil@raspberrypi.com>
u64 llp;
int i;
@@ -1074,6 +1161,7 @@ static void axi_chan_block_xfer_complete
@@ -1075,6 +1161,7 @@ static void axi_chan_block_xfer_complete
if (chan->cyclic) {
desc = vd_to_axi_desc(vd);
if (desc) {
@ -305,7 +313,17 @@ Signed-off-by: Phil Elwell <phil@raspberrypi.com>
llp = lo_hi_readq(chan->chan_regs + CH_LLP);
for (i = 0; i < count; i++) {
hw_desc = &desc->hw_desc[i];
@@ -1323,6 +1411,10 @@ static int parse_device_properties(struc
@@ -1095,6 +1182,9 @@ static void axi_chan_block_xfer_complete
/* Remove the completed descriptor from issued list before completing */
list_del(&vd->node);
vchan_cookie_complete(vd);
+
+ /* Submit queued descriptors after processing the completed ones */
+ axi_chan_start_first_queued(chan);
}
out:
@@ -1324,6 +1414,10 @@ static int parse_device_properties(struc
chip->dw->hdata->nr_masters = tmp;

89
target/linux/bcm27xx/patches-6.6/950-1145-fixup-dmaengine-dw-axi-dmac-Fixes-for-RP1.patch Normal file
View File

@ -0,0 +1,89 @@
From 769634f344626ed73bcda14c91b567067974d7b2 Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.com>
Date: Sat, 29 Jun 2024 09:30:23 +0100
Subject: [PATCH 1145/1145] fixup! dmaengine: dw-axi-dmac: Fixes for RP1
nr_hw_descs is the upstream version of what count_hw_descs, so make
(more) use of it instead.
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
---
drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c | 14 +++++++-------
drivers/dma/dw-axi-dmac/dw-axi-dmac.h | 1 -
2 files changed, 7 insertions(+), 8 deletions(-)
--- a/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c
+++ b/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c
@@ -305,7 +305,7 @@ static struct axi_dma_lli *axi_desc_get(
static void axi_desc_put(struct axi_dma_desc *desc)
{
struct axi_dma_chan *chan = desc->chan;
- u32 count = desc->hw_desc_count;
+ int count = desc->nr_hw_descs;
struct axi_dma_hw_desc *hw_desc;
int descs_put;
@@ -849,7 +849,7 @@ dw_axi_dma_chan_prep_cyclic(struct dma_c
src_addr += segment_len;
}
- desc->hw_desc_count = total_segments;
+ desc->nr_hw_descs = total_segments;
llp = desc->hw_desc[0].llp;
@@ -933,7 +933,7 @@ dw_axi_dma_chan_prep_slave_sg(struct dma
} while (len >= segment_len);
}
- desc->hw_desc_count = loop;
+ desc->nr_hw_descs = loop;
/* Set end-of-link to the last link descriptor of list */
set_desc_last(&desc->hw_desc[num_sgs - 1]);
@@ -1042,7 +1042,7 @@ dma_chan_prep_dma_memcpy(struct dma_chan
num++;
}
- desc->hw_desc_count = num;
+ desc->nr_hw_descs = num;
/* Set end-of-link to the last link descriptor of list */
set_desc_last(&desc->hw_desc[num - 1]);
@@ -1092,7 +1092,7 @@ static void axi_chan_dump_lli(struct axi
static void axi_chan_list_dump_lli(struct axi_dma_chan *chan,
struct axi_dma_desc *desc_head)
{
- u32 count = desc_head->hw_desc_count;
+ int count = desc_head->nr_hw_descs;
int i;
for (i = 0; i < count; i++)
@@ -1139,7 +1139,7 @@ static void axi_chan_block_xfer_complete
struct axi_dma_desc *desc;
struct virt_dma_desc *vd;
unsigned long flags;
- u32 count;
+ int count;
u64 llp;
int i;
@@ -1161,7 +1161,7 @@ static void axi_chan_block_xfer_complete
if (chan->cyclic) {
desc = vd_to_axi_desc(vd);
if (desc) {
- count = desc->hw_desc_count;
+ count = desc->nr_hw_descs;
llp = lo_hi_readq(chan->chan_regs + CH_LLP);
for (i = 0; i < count; i++) {
hw_desc = &desc->hw_desc[i];
--- a/drivers/dma/dw-axi-dmac/dw-axi-dmac.h
+++ b/drivers/dma/dw-axi-dmac/dw-axi-dmac.h
@@ -101,7 +101,6 @@ struct axi_dma_desc {
struct virt_dma_desc vd;
struct axi_dma_chan *chan;
- u32 hw_desc_count;
u32 completed_blocks;
u32 length;
u32 period_len;