HiSpark_AiFly开发板功能适配-kernel_linux

已开启

HiSpark_AiFly开发板功能适配 #588

jia_kongfeng创建于 8月31日从jia_kongfeng/kernel_linux_patches_master_tag： master 合入到 openharmony/kernel_linux_patches： master

HiSpark_AiFly开发板功能适配 #588

已开启

jia_kongfeng创建于 8月31日

从jia_kongfeng/kernel_linux_patches_master_tag master合入到openharmony/kernel_linux_patches master

共 12 个文件变更+139599-0

MOAT.xml+1-0

	@@ -60,6 +60,7 @@ Note:If the text contains special characters, please escape them according to th
60	<policylist>	60	<policylist>
61	<policy name="projectPolicy" desc="">	61	<policy name="projectPolicy" desc="">
62	<policyitem type="license" name="GPL" path=".*" desc="linux kernel adapter codes"/>	62	<policyitem type="license" name="GPL" path=".*" desc="linux kernel adapter codes"/>
		63	+ <policyitem type="copyright" name="HiSilicon (Shanghai) Technologies Co., Ltd." path=".*" desc="HiSilicon copyright"/>
63	</policy>	64	</policy>
64	</policylist>	65	</policylist>
65	</oatconfig>	66	</oatconfig>

Alinux-6.6/hispark_aifly_patch/0001-kernel-hispark_aifly.patch+72626-0

此文件变更行数或变更字符数较多，你可以直接查看源码

Alinux-6.6/hispark_aifly_patch/0002-kernel-compile-support.patch+4635-0

Alinux-6.6/hispark_aifly_patch/0003-kernel-drm.patch+40156-0

此文件变更行数或变更字符数较多，你可以直接查看源码

Alinux-6.6/hispark_aifly_patch/0004-kernel-vo.patch+21086-0

此文件变更行数或变更字符数较多，你可以直接查看源码

Alinux-6.6/hispark_aifly_patch/0005-kernel-dhcp-support.patch+26-0

@@ -0,0 +1,26 @@
	1	+diff --git a/arch/arm64/boot/dts/vendor/ss928v100-demb.dts b/arch/arm64/boot/dts/vendor/ss928v100-demb.dts
	2	+index d90c5d5cf..a39158451 100644
	3	+--- a/arch/arm64/boot/dts/vendor/ss928v100-demb.dts
	4	++++ b/arch/arm64/boot/dts/vendor/ss928v100-demb.dts
	5	+@@ -334,7 +334,7 @@ &gmac {
	6	+
	7	+ &gmac1 {
	8	+ phy-handle = <&ethphy1>;
	9	+- phy-mode = "rgmii-id";
	10	++ phy-mode = "rgmii";
	11	+ };
	12	+
	13	+ &pcie0 {
	14	+diff --git a/drivers/net/ethernet/vendor/gmac/gmac.c b/drivers/net/ethernet/vendor/gmac/gmac.c
	15	+index 30247bd46..40bfe2386 100644
	16	+--- a/drivers/net/ethernet/vendor/gmac/gmac.c
	17	++++ b/drivers/net/ethernet/vendor/gmac/gmac.c
	18	+@@ -1655,7 +1655,7 @@ static int gmac_netdev_preinit(struct gmac_netdev_local *priv)
	19	+ priv->msg_enable = netif_msg_init(debug, DEFAULT_MSG_ENABLE);
	20	+
	21	+ #if defined(CONFIG_GMAC_DDR_64BIT)
	22	+- ret = dma_set_mask_and_coherent(priv->dev, DMA_BIT_MASK(64)); /* 64: mask length */
	23	++ ret = dma_set_mask_and_coherent(priv->dev, DMA_BIT_MASK(32)); /* 32: mask length */
	24	+ if (ret) {
	25	+ pr_err("dma set mask bit 64 failed! ret=%d", ret);
	lijiawei9月1日 [linux-6.6/hispark_aifly_patch/0005-kernel-dhcp-support.patch:25] 错误消息与代码不一致：此处将 DMA_BIT_MASK(64) 改为 DMA_BIT_MASK(32)，但下方的 pr_err 仍输出 "dma set mask bit 64 failed"，应修改为 "dma set mask bit 32 failed" 以保持一致。
	26	+ gmac_destroy_napi(priv);

Alinux-6.6/hispark_aifly_patch/0006-kernel-mipi-support.patch+13-0

@@ -0,0 +1,13 @@
	1	+diff --git a/arch/arm64/boot/dts/vendor/ss928v100.dtsi b/arch/arm64/boot/dts/vendor/ss928v100.dtsi
	2	+index 80f4dcfb2..d285dd0a8 100644
	3	+--- a/arch/arm64/boot/dts/vendor/ss928v100.dtsi
	4	++++ b/arch/arm64/boot/dts/vendor/ss928v100.dtsi
	5	+@@ -518,6 +518,8 @@ gpio_chip13: gpio_chip@1109D000 {
	6	+ clocks = <&clock SS928V100_FIXED_50M>;
	7	+ clock-names = "apb_pclk";
	8	+ status = "disabled";
	9	++ interrupt-controller;
	10	++ #interrupt-cells = <2>;
	11	+ };
	12	+
	13	+ gpio_chip14: gpio_chip@1109E000 {

Alinux-6.6/hispark_aifly_patch/0007-kernel-nca9555.patch+518-0

@@ -0,0 +1,518 @@
	1	+diff --git a/arch/arm64/boot/dts/vendor/ss928v100-demb.dts b/arch/arm64/boot/dts/vendor/ss928v100-demb.dts
	2	+index d90c5d5cf..b488894f5 100644
	3	+--- a/arch/arm64/boot/dts/vendor/ss928v100-demb.dts
	4	++++ b/arch/arm64/boot/dts/vendor/ss928v100-demb.dts
	5	+@@ -157,6 +157,11 @@ &i2c_bus2 {
	6	+
	7	+ &i2c_bus3 {
	8	+ status = "okay";
	9	++ nca9555: ioexpander@20 {
	10	++ compatible = "nca9555";
	lijiawei9月1日 [linux-6.6/hispark_aifly_patch/0007-kernel-nca9555.patch:10] DTS 节点缩进使用了空格，但内核 DTS 文件约定使用制表符（tab）缩进。请将 nca9555: ioexpander@20 节点内的缩进改为制表符以保持与文件其余部分一致。
	11	++ reg = <0x20>;
	12	++ status = "okay";
	13	++ };
	14	+ };
	15	+
	16	+ &i2c_bus4 {
	17	+diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
	18	+index ebd4e113d..7fbce8891 100644
	19	+--- a/drivers/gpio/Kconfig
	20	++++ b/drivers/gpio/Kconfig
	21	+@@ -1821,3 +1821,7 @@ config GPIO_SIM
	22	+ endmenu
	23	+
	24	+ endif
	25	++
	26	++config GPIO_NCA9555
	lijiawei9月1日 [linux-6.6/hispark_aifly_patch/0007-kernel-nca9555.patch:26] config GPIO_NCA9555 放在了 endif 之后，位于 if GPIOLIB 条件块之外，这意味着即使未启用 GPIOLIB 也会出现此配置选项。应将其移至 endmenu 之前、endif 之内。
	27	++ tristate "NCA9555"
	28	++ default n
	29	+diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
	30	+index f1f998da4..69407b9c5 100644
	31	+--- a/drivers/gpio/Makefile
	32	++++ b/drivers/gpio/Makefile
	33	+@@ -196,3 +196,4 @@ obj-$(CONFIG_GPIO_ZEVIO) += gpio-zevio.o
	34	+ obj-$(CONFIG_GPIO_ZYNQ) += gpio-zynq.o
	35	+ obj-$(CONFIG_GPIO_ZYNQMP_MODEPIN) += gpio-zynqmp-modepin.o
	36	+ obj-$(CONFIG_ARCH_HISILICON) += vendor/
	37	++obj-$(CONFIG_GPIO_NCA9555) += gpio-nca9555.o
	38	+
	lijiawei9月1日 [linux-6.6/hispark_aifly_patch/0007-kernel-nca9555.patch:38] Makefile 末尾缺少换行符（"No newline at end of file"）。请在 obj-$(CONFIG_GPIO_NCA9555) 行末添加换行符，符合 POSIX 文本文件规范。
	39	+diff --git a/drivers/gpio/gpio-nca9555.c b/drivers/gpio/gpio-nca9555.c
	40	+new file mode 100644
	41	+index 000000000..075c580da
	42	+--- /dev/null
	43	++++ b/drivers/gpio/gpio-nca9555.c
	44	+@@ -0,0 +1,207 @@
	45	++// SPDX-License-Identifier: GPL-2.0-or-later
	46	++/*
	47	++ * GPIO driver for NCA9555 MFD
	48	++ *
	49	++ */
	50	++
	51	++#include <linux/module.h>
	52	++#include <linux/slab.h>
	53	++#include <linux/kernel.h>
	54	++#include <linux/init.h>
	55	++#include <linux/platform_device.h>
	56	++#include <linux/mfd/nca9555.h>
	57	++#include <linux/gpio/driver.h>
	58	++
	59	++#define NCA9555_GPIO_MAX 16
	60	++
	61	++struct nca9555_gpio_dev {
	62	++ struct device *parent;
	63	++ struct gpio_chip gpio_chip;
	64	++ struct mutex lock;
	65	++ u8 dat_out[2];
	66	++ u8 dir[2];
	67	++};
	68	++
	69	++static int nca9555_gpio_reg_read(struct nca9555_gpio_dev nca9555_gpio, u8 reg, u8 val)
	70	++{
	71	++ struct nca9555_dev *nca9555;
	72	++ nca9555 = dev_get_drvdata(nca9555_gpio->parent);
	73	++
	74	++ return nca9555->read_reg(nca9555, reg, val);
	75	++}
	76	++
	77	++static int nca9555_gpio_reg_write(struct nca9555_gpio_dev *nca9555_gpio, u8 reg, u8 val)
	78	++{
	79	++ struct nca9555_dev *nca9555;
	80	++ nca9555 = dev_get_drvdata(nca9555_gpio->parent);
	81	++
	82	++ return nca9555->write_reg(nca9555, reg, val);
	83	++}
	84	++
	85	++static int nca9555_gpio_get_value(struct gpio_chip *chip, unsigned int off)
	86	++{
	87	++ struct nca9555_gpio_dev *nca9555_gpio;
	88	++ unsigned int bank, bit;
	89	++ u8 val;
	90	++
	91	++ nca9555_gpio = gpiochip_get_data(chip);
	92	++ bank = NCA9555_BANK(off);
	93	++ bit = NCA9555_BIT(off);
	94	++
	95	++ mutex_lock(&nca9555_gpio->lock);
	96	++ /* There are dedicated registers for GPIO IN/OUT. */
	97	++ if (nca9555_gpio->dir[bank] & bit)
	lijiawei9月1日 [linux-6.6/hispark_aifly_patch/0007-kernel-nca9555.patch:97] nca9555_gpio_get_value 中输入/输出方向判断逻辑反了：当 dir[bank] & bit 为真时（对应 CONFIG 寄存器 bit=1，即输入模式），代码返回 dat_out（输出缓存值）；当 bit 为假时（CONFIG bit=0，即输出模式），代码读取输入寄存器。应交换两个分支：输入模式读输入寄存器，输出模式返回 dat_out 缓存值。
	98	++ val = nca9555_gpio->dat_out[bank];
	99	++ else
	100	++ nca9555_gpio_reg_read(nca9555_gpio, GPIO_PORT0_INPUT_REG + bank, &val);
	101	++
	102	++ mutex_unlock(&nca9555_gpio->lock);
	103	++
	104	++ return !!(val & bit);
	105	++}
	106	++
	107	++static void nca9555_gpio_set_value(struct gpio_chip *chip, unsigned int off, int val)
	108	++{
	109	++ struct nca9555_gpio_dev *nca9555_gpio;
	110	++ unsigned int bank, bit;
	111	++
	112	++ nca9555_gpio = gpiochip_get_data(chip);
	113	++ bank = NCA9555_BANK(off);
	114	++ bit = NCA9555_BIT(off);
	115	++
	116	++ mutex_lock(&nca9555_gpio->lock);
	117	++ if (val)
	118	++ nca9555_gpio->dat_out[bank] \|= bit;
	119	++ else
	120	++ nca9555_gpio->dat_out[bank] &= ~bit;
	121	++
	122	++ nca9555_gpio_reg_write(nca9555_gpio, GPIO_PORT0_OUTPUT_REG + bank,
	123	++ nca9555_gpio->dat_out[bank]);
	124	++ mutex_unlock(&nca9555_gpio->lock);
	125	++}
	126	++
	127	++static int nca9555_gpio_direction_input(struct gpio_chip *chip, unsigned int off)
	128	++{
	129	++ struct nca9555_gpio_dev *nca9555_gpio;
	130	++ unsigned int bank, bit;
	131	++ int ret;
	132	++
	133	++ nca9555_gpio = gpiochip_get_data(chip);
	134	++ bank = NCA9555_BANK(off);
	135	++ bit = NCA9555_BIT(off);
	136	++
	137	++ mutex_lock(&nca9555_gpio->lock);
	138	++ nca9555_gpio->dir[bank] \|= bit;
	139	++ ret = nca9555_gpio_reg_write(nca9555_gpio, GPIO_PORT0_CONFIG_REG + bank,
	140	++ nca9555_gpio->dir[bank]);
	141	++ mutex_unlock(&nca9555_gpio->lock);
	142	++ return ret;
	143	++}
	144	++
	145	++static int nca9555_gpio_direction_output(struct gpio_chip *chip, unsigned int off, int val)
	146	++{
	147	++ struct nca9555_gpio_dev *nca9555_gpio;
	148	++ unsigned int bank, bit;
	149	++ int ret;
	150	++
	151	++ nca9555_gpio = gpiochip_get_data(chip);
	152	++
	153	++ bank = NCA9555_BANK(off);
	154	++ bit = NCA9555_BIT(off);
	155	++
	156	++ mutex_lock(&nca9555_gpio->lock);
	157	++ // 配置为输出：先更新输出电平寄存器，再设置方向寄存器
	158	++ // 设计目的：防止先切输出方向时引脚出现未知电平毛刺
	159	++ nca9555_gpio->dir[bank] &= ~bit;
	160	++
	161	++ if (val)
	162	++ nca9555_gpio->dat_out[bank] \|= bit;
	163	++ else
	164	++ nca9555_gpio->dat_out[bank] &= ~bit;
	165	++
	166	++ // 1. 先写入目标输出电平
	167	++ ret = nca9555_gpio_reg_write(nca9555_gpio, GPIO_PORT0_OUTPUT_REG + bank,
	168	++ nca9555_gpio->dat_out[bank]);
	169	++ // 2. 再配置引脚为输出模式
	170	++ ret \|= nca9555_gpio_reg_write(nca9555_gpio, GPIO_PORT0_CONFIG_REG + bank,
	lijiawei9月1日 [linux-6.6/hispark_aifly_patch/0007-kernel-nca9555.patch:170] 使用 ret \|= 合并两次 reg_write 的返回值是错误的错误处理方式。若第一次写入成功（返回 0），第二次失败（返回 -EIO），0 \| -EIO 的结果并非有效的错误码。建议对每次 reg_write 分别检查返回值，第一次失败时直接返回错误。
	171	++ nca9555_gpio->dir[bank]);
	172	++
	173	++ mutex_unlock(&nca9555_gpio->lock);
	174	++
	175	++ return ret;
	176	++}
	177	++
	178	++static int nca9555_gpio_probe(struct platform_device *pdev)
	179	++{
	180	++ struct nca9555_gpio_dev *nca9555_gpio;
	181	++ struct device *dev = &pdev->dev;
	182	++ struct device_node *np = dev->of_node;
	183	++ struct gpio_chip *gc;
	184	++ int i;
	185	++ int ret;
	186	++
	187	++ dev_info(dev, "gpio-nca9555 probe start \n");
	188	++
	189	++ nca9555_gpio = devm_kzalloc(&pdev->dev, sizeof(struct nca9555_gpio_dev), GFP_KERNEL);
	190	++ if (!nca9555_gpio)
	191	++ return -ENOMEM;
	192	++
	193	++ nca9555_gpio->parent = pdev->dev.parent;
	194	++
	195	++ gc = &nca9555_gpio->gpio_chip;
	196	++ gc->fwnode = dev_fwnode(dev);
	197	++ gc->parent = dev;
	198	++ gc->direction_input = nca9555_gpio_direction_input;
	199	++ gc->direction_output = nca9555_gpio_direction_output;
	200	++ gc->get = nca9555_gpio_get_value;
	201	++ gc->set = nca9555_gpio_set_value;
	202	++ gc->can_sleep = true;
	203	++
	204	++ gc->base = -1;
	205	++ gc->ngpio = NCA9555_GPIO_MAX;
	206	++ gc->label = pdev->name;
	207	++ gc->owner = THIS_MODULE;
	208	++
	209	++ mutex_init(&nca9555_gpio->lock);
	210	++
	211	++ for (i = 0; i < 2; i++) {
	212	++ u8 dat_out, dir;
	213	++ dat_out = nca9555_gpio->dat_out;
	214	++ dir = nca9555_gpio->dir;
	215	++ ret = nca9555_gpio_reg_read(nca9555_gpio,
	216	++ GPIO_PORT0_OUTPUT_REG + i, dat_out + i);
	217	++ if (ret) {
	218	++ dev_err(dev, "read output port%d reg fail, ret=%d\n", i, ret);
	219	++ return ret;
	220	++ }
	221	++ ret = nca9555_gpio_reg_read(nca9555_gpio,
	222	++ GPIO_PORT0_CONFIG_REG + i, dir + i);
	223	++ if (ret) {
	224	++ dev_err(dev, "read config port%d reg fail, ret=%d\n", i, ret);
	225	++ return ret;
	226	++ }
	227	++ }
	228	++
	229	++ dev_info(dev, "gpio-nca9555 probe succes \n");
	230	++
	231	++ return devm_gpiochip_add_data(&pdev->dev, &nca9555_gpio->gpio_chip, nca9555_gpio);
	232	++}
	233	++
	234	++static const struct of_device_id nca9555_of_match[] = {
	235	++ {.compatible = "nca9555-gpio", },
	236	++ { /* sentinel */ }
	237	++};
	238	++MODULE_DEVICE_TABLE(of, nca9555_of_match);
	239	++
	240	++static struct platform_driver nca9555_gpio_driver = {
	241	++ .driver = {
	242	++ .name = "nca9555-gpio",
	243	++ .of_match_table = nca9555_of_match,
	244	++ },
	245	++ .probe = nca9555_gpio_probe,
	246	++};
	247	++
	248	++module_platform_driver(nca9555_gpio_driver);
	249	++
	250	++MODULE_DESCRIPTION("GPIO NCA9555 Driver");
	251	++MODULE_LICENSE("GPL");
	252	+diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
	253	+index 459e737c5..3f6687e8f 100644
	254	+--- a/drivers/mfd/Kconfig
	255	++++ b/drivers/mfd/Kconfig
	256	+@@ -2345,3 +2345,8 @@ config MFD_RSMU_SPI
	257	+
	258	+ endmenu
	259	+ endif
	260	++
	261	++config MFD_NCA9555
	lijiawei9月1日 [linux-6.6/hispark_aifly_patch/0007-kernel-nca9555.patch:261] config MFD_NCA9555 缺少 depends on I2C 依赖。MFD 核心驱动 nca9555.c 使用 I2C 通信，若未启用 I2C 子系统，编译将失败。同时该配置也位于 endmenu 和 endif 之外，应移入条件块内。
	262	++ tristate "NCA9555"
	263	++ select MFD_CORE
	264	++ default n
	265	+diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
	266	+index 7e57a4983..f1ac14598 100644
	267	+--- a/drivers/mfd/Makefile
	268	++++ b/drivers/mfd/Makefile
	269	+@@ -285,3 +285,4 @@ obj-$(CONFIG_MFD_ATC260X_I2C) += atc260x-i2c.o
	270	+
	271	+ obj-$(CONFIG_MFD_RSMU_I2C) += rsmu_i2c.o rsmu_core.o
	272	+ obj-$(CONFIG_MFD_RSMU_SPI) += rsmu_spi.o rsmu_core.o
	273	++obj-$(CONFIG_MFD_NCA9555) += nca9555.o
	274	+diff --git a/drivers/mfd/nca9555.c b/drivers/mfd/nca9555.c
	275	+new file mode 100644
	276	+index 000000000..30f6de079
	277	+--- /dev/null
	278	++++ b/drivers/mfd/nca9555.c
	279	+@@ -0,0 +1,158 @@
	280	++/* SPDX-License-Identifier: GPL-2.0-or-later */
	281	++/* NCA9555 IO Expander, Key controller core driver.
	282	++ *
	283	++ * Copyright 2023 RPDZKJ
	284	++ */
	285	++
	286	++#include <linux/module.h>
	287	++#include <linux/moduleparam.h>
	288	++#include <linux/init.h>
	289	++#include <linux/slab.h>
	290	++#include <linux/i2c.h>
	291	++#include <linux/of.h>
	292	++#include <linux/mfd/core.h>
	293	++#include <linux/mfd/nca9555.h>
	294	++#include <linux/io.h>
	295	++static const struct mfd_cell nca9555_devs[] = {
	296	++ {
	297	++ .name = "nca9555-gpio",
	298	++ .of_compatible = "nca9555-gpio",
	299	++ }
	300	++};
	301	++
	302	++static int nca9555_i2c_read_reg(struct nca9555_dev nca9555, u8 reg, u8 val)
	303	++{
	304	++ struct i2c_client *i2c = nca9555->i2c_client;
	305	++ struct i2c_msg xfer[2];
	306	++ int ret;
	307	++
	308	++ /* Write register */
	309	++ xfer[0].addr = i2c->addr;
	310	++ xfer[0].flags = 0;
	311	++ xfer[0].len = 1;
	312	++ xfer[0].buf = ®
	313	++
	314	++ /* Read data */
	315	++ xfer[1].addr = i2c->addr;
	316	++ xfer[1].flags = I2C_M_RD;
	317	++ xfer[1].len = 1;
	318	++ xfer[1].buf = val;
	319	++
	320	++ ret = i2c_transfer(i2c->adapter, xfer, 2);
	321	++ if (ret == 2) {
	322	++ return 0;
	323	++ } else {
	324	++ dev_err(&i2c->dev,
	325	++ "Failed to read reg 0x%02x, ret is %d\n",
	326	++ reg, ret);
	327	++ if ( ret >=0)
	328	++ return -EIO;
	329	++ else
	330	++ return ret;
	331	++ }
	332	++}
	333	++
	334	++static int nca9555_i2c_write_reg(struct nca9555_dev *nca9555, u8 reg, u8 val)
	335	++{
	336	++ struct i2c_client *i2c = nca9555->i2c_client;
	337	++ u8 msg[2];
	338	++ int ret;
	339	++
	340	++ msg[0] = reg;
	341	++ msg[1] = val;
	342	++ ret = i2c_master_send(i2c, msg, 2);
	343	++ if (ret == 2) {
	344	++ return 0;
	345	++ } else {
	346	++ dev_err(&i2c->dev,
	347	++ "Failed to write reg 0x%02x, ret is %d\n",
	348	++ reg, ret);
	349	++ if ( ret >=0)
	350	++ return -EIO;
	351	++ else
	352	++ return ret;
	353	++ }
	354	++}
	355	++
	356	++static int nca9555_i2c_probe(struct i2c_client *i2c)
	357	++{
	358	++ struct nca9555_dev *nca9555;
	359	++ int ret;
	360	++ struct device *dev = &i2c->dev;
	361	++
	362	++ dev_info(dev, "Enter probe, i2c addr:0x%02x\n", i2c->addr);
	363	++
	364	++ nca9555 = devm_kzalloc(dev, sizeof(struct nca9555_dev), GFP_KERNEL);
	365	++ if (!nca9555) {
	366	++ dev_err(dev, "devm_kzalloc failed\n");
	367	++ return -ENOMEM;
	368	++ }
	369	++ dev_info(dev, "alloc nca9555 dev struct ok\n");
	370	++
	371	++ i2c_set_clientdata(i2c, nca9555);
	372	++ nca9555->dev = dev;
	373	++ nca9555->i2c_client = i2c;
	374	++ nca9555->read_reg = nca9555_i2c_read_reg;
	375	++ nca9555->write_reg = nca9555_i2c_write_reg;
	376	++ dev_info(dev, "bind reg ops complete\n");
	377	++
	378	++ if (!dev->of_node) {
	379	++ dev_err(dev, "no device tree node, reject probe\n");
	380	++ return -ENODEV;
	381	++ }
	382	++ u32 dts_addr;
	lijiawei9月1日 [linux-6.6/hispark_aifly_patch/0007-kernel-nca9555.patch:382] u32 dts_addr 变量声明位于 dev_err 语句之后，违反内核代码风格（C89 要求变量声明在块开头）。请将 u32 dts_addr 声明移至 nca9555_i2c_probe 函数开头的变量声明区域。
	383	++ ret = of_property_read_u32(dev->of_node, "reg", &dts_addr);
	384	++ if (ret \|\| dts_addr != i2c->addr) {
	385	++ dev_err(dev, "reg mismatch: dts=0x%x client=0x%02x, ret=%d\n",
	386	++ dts_addr, i2c->addr, ret);
	387	++ return -ENODEV;
	388	++ }
	389	++
	390	++ ret = devm_mfd_add_devices(dev, PLATFORM_DEVID_AUTO,
	391	++ nca9555_devs, ARRAY_SIZE(nca9555_devs),
	392	++ NULL, 0, NULL);
	393	++ if (ret) {
	394	++ dev_err(dev, "devm_mfd_add_devices failed, ret=%d, err=%pE\n", ret, ERR_PTR(ret));
	395	++ return ret;
	396	++ }
	397	++ dev_info(dev, "probe finished successfully\n");
	398	++
	399	++ return 0;
	400	++}
	401	++
	402	++static const struct i2c_device_id nca9555_i2c_id[] = {
	403	++ { "nca9555", 0 },
	404	++ { /* sentinel */ }
	405	++};
	406	++MODULE_DEVICE_TABLE(i2c, nca9555_i2c_id);
	407	++
	408	++static const struct of_device_id nca9555_of_match[] = {
	409	++ {.compatible = "nca9555", },
	410	++ { /* sentinel */ }
	411	++};
	412	++MODULE_DEVICE_TABLE(of, nca9555_of_match);
	413	++
	414	++static struct i2c_driver nca9555_i2c_driver = {
	415	++ .driver = {
	416	++ .name = "nca9555",
	417	++ .of_match_table = of_match_ptr(nca9555_of_match),
	418	++ },
	419	++ .probe = nca9555_i2c_probe,
	420	++ .id_table = nca9555_i2c_id,
	421	++};
	422	++
	423	++static int __init nca9555_i2c_init(void)
	424	++{
	425	++ return i2c_add_driver(&nca9555_i2c_driver);
	426	++}
	427	++/* init early so consumer devices can complete system boot */
	428	++subsys_initcall(nca9555_i2c_init);
	lijiawei9月1日 [linux-6.6/hispark_aifly_patch/0007-kernel-nca9555.patch:428] 使用 subsys_initcall 而非标准的 module_i2c_driver() 宏。I2C 驱动通常使用 module_i2c_driver() 注册，它能正确处理模块加载/卸载逻辑。若确实需要早期初始化，请添加注释说明原因；否则建议改用 module_i2c_driver(nca9555_i2c_driver) 并删除手动定义的 init/exit 函数。
	429	++
	430	++static void __exit nca9555_i2c_exit(void)
	431	++{
	432	++ i2c_del_driver(&nca9555_i2c_driver);
	433	++}
	434	++module_exit(nca9555_i2c_exit);
	435	++
	436	++MODULE_DESCRIPTION("NCA9555 core driver");
	437	++MODULE_LICENSE("GPL");
	438	+diff --git a/include/dt-bindings/gpio/nca9555-gpio.h b/include/dt-bindings/gpio/nca9555-gpio.h
	439	+new file mode 100644
	440	+index 000000000..62fead2db
	441	+--- /dev/null
	442	++++ b/include/dt-bindings/gpio/nca9555-gpio.h
	443	+@@ -0,0 +1,29 @@
	444	++/* SPDX-License-Identifier: GPL-2.0-only */
	445	++/*
	446	++ * GPIO definitions for NCA9555
	447	++ *
	448	++ * Copyright (C) 2023 RPDZKJ
	449	++ */
	450	++
	451	++#ifndef _DT_BINDINGS_NCA9555_GPIO_H
	452	++#define _DT_BINDINGS_NCA9555_GPIO_H
	453	++
	454	++#define IO_00 0
	455	++#define IO_01 1
	456	++#define IO_02 2
	457	++#define IO_03 3
	458	++#define IO_04 4
	459	++#define IO_05 5
	460	++#define IO_06 6
	461	++#define IO_07 7
	462	++
	463	++#define IO_10 8
	464	++#define IO_11 9
	465	++#define IO_12 10
	466	++#define IO_13 11
	467	++#define IO_14 12
	468	++#define IO_15 13
	469	++#define IO_16 14
	470	++#define IO_17 15
	471	++
	472	++#endif /* _DT_BINDINGS_NCA9555_GPIO_H */
	473	+diff --git a/include/linux/mfd/nca9555.h b/include/linux/mfd/nca9555.h
	474	+new file mode 100644
	475	+index 000000000..321aea2bf
	476	+--- /dev/null
	477	++++ b/include/linux/mfd/nca9555.h
	478	+@@ -0,0 +1,40 @@
	479	++/* SPDX-License-Identifier: GPL-2.0-or-later */
	480	++/*
	481	++ * Analog Devices NCA9555 I/O Expander, keypad controller,
	482	++ * PWM contorller.
	483	++ */
	484	++
	485	++#ifndef __NCA9555_H_
	486	++#define __NCA9555_H_
	487	++
	488	++
	489	++#define GPIO_PORT0 0
	490	++#define GPIO_PORT1 1
	491	++
	492	++#define GPIO_PORT0_INPUT_REG 0x00
	493	++#define GPIO_PORT1_INPUT_REG 0x01
	494	++
	495	++#define GPIO_PORT0_OUTPUT_REG 0x02
	496	++#define GPIO_PORT1_OUTPUT_REG 0x03
	497	++
	498	++#define GPIO_PORT0_POLAR_REG 0x04
	499	++#define GPIO_PORT1_POLAR_REG 0x05
	500	++
	501	++#define GPIO_PORT0_CONFIG_REG 0x06
	502	++#define GPIO_PORT1_CONFIG_REG 0x07
	503	++
	504	++#define NCA9555_ID 0x00
	505	++
	506	++#define NCA9555_BANK(offs) ((offs) >= 8)
	507	++#define NCA9555_BIT(offs) ((offs) >= 8 ? \
	508	++ 1u << (offs - 8) : 1u << (offs))
	509	++
	510	++struct nca9555_dev {
	511	++ struct device *dev;
	512	++ struct i2c_client *i2c_client;
	513	++
	514	++ int (read_reg)(struct nca9555_dev nca9555, u8 reg, u8 *val);
	515	++ int (write_reg)(struct nca9555_dev nca9555, u8 reg, u8 val);
	516	++};
	517	++
	518	++#endif

Alinux-6.6/hispark_aifly_patch/0008-power-key-dts.patch+51-0

@@ -0,0 +1,51 @@
	1	+diff --git a/arch/arm64/boot/dts/vendor/ss928v100-demb.dts b/arch/arm64/boot/dts/vendor/ss928v100-demb.dts
	2	+index 529e33fe0..bdffb0627 100644
	3	+--- a/arch/arm64/boot/dts/vendor/ss928v100-demb.dts
	4	++++ b/arch/arm64/boot/dts/vendor/ss928v100-demb.dts
	5	+@@ -22,6 +22,7 @@
	6	+ /* Modify this configuration according to the system framework */
	7	+ /memreserve/ 0x52fff000 0x01a02000;
	8	+ #include "ss928v100.dtsi"
	9	++#include <dt-bindings/input/input.h>
	10	+
	11	+ / {
	12	+ model = "Vendor SS928V100 DEMO Board";
	13	+@@ -114,6 +115,26 @@ memory {
	14	+ device_type = "memory";
	15	+ reg = <0x0 0x50000000 0x1 0xf0000000>; /* system memory base */
	16	+ };
	17	++
	18	++ gpio-keys {
	19	++ compatible = "gpio-keys";
	20	++ label = "board_gpio_key";
	21	++ status = "okay";
	22	++
	23	++ power-key {
	24	++ label = "Power Key";
	25	++ linux,code = <KEY_POWER>;
	26	++ gpios = <&gpio_chip11 2 GPIO_ACTIVE_HIGH>;
	lijiawei9月1日 [linux-6.6/hispark_aifly_patch/0008-power-key-dts.patch:26] 电源按键使用 GPIO_ACTIVE_HIGH，但大多数硬件设计中电源按键按下时将 GPIO 拉低，通常使用 GPIO_ACTIVE_LOW。请确认 HiSpark AiFly 开发板的电源按键硬件设计：若按键按下为低电平，应改为 GPIO_ACTIVE_LOW。
	27	++ debounce-interval = <50>;
	28	++ };
	29	++
	30	++ backlight-key {
	31	++ label = "BackLight Key";
	32	++ linux,code = <KEY_BRIGHTNESSDOWN>;
	33	++ gpios = <&gpio_chip11 3 GPIO_ACTIVE_HIGH>;
	34	++ debounce-interval = <50>;
	35	++ };
	36	++ };
	37	+ };
	38	+
	39	+ &ipcm {
	40	+diff --git a/arch/arm64/boot/dts/vendor/ss928v100.dtsi b/arch/arm64/boot/dts/vendor/ss928v100.dtsi
	41	+index d285dd0a8..376dac2ac 100644
	42	+--- a/arch/arm64/boot/dts/vendor/ss928v100.dtsi
	43	++++ b/arch/arm64/boot/dts/vendor/ss928v100.dtsi
	44	+@@ -21,6 +21,7 @@
	45	+ #include <dt-bindings/interrupt-controller/irq.h>
	46	+ #include <dt-bindings/interrupt-controller/arm-gic.h>
	47	+ #include "ss928v100_family_usb.dtsi"
	48	++#include <dt-bindings/gpio/gpio.h>
	49	+
	50	+ / {
	51	+ #address-cells = <2>;

Alinux-6.6/hispark_aifly_patch/0009-hdf-soc-path.patch+8-0

@@ -0,0 +1,8 @@
	1	+diff --git a/drivers/Makefile b/drivers/Makefile
	2	+--- a/drivers/Makefile
	3	++++ b/drivers/Makefile
	4	+@@ -205,3 +205,4 @@
	5	+
	6	+ obj-$(CONFIG_ACCESS_TOKENID) += accesstokenid/
	7	+ obj-$(CONFIG_HCK_VENDOR_HOOKS) += hck/
	8	++obj-$(CONFIG_ARCH_SS928V100) += hdf/soc_driver/

Alinux-6.6/hispark_aifly_patch/0010-kernel-quectel-4g.patch+412-0

@@ -0,0 +1,412 @@
	1	+diff --git a/arch/arm64/boot/dts/vendor/ss928v100-demb.dts b/arch/arm64/boot/dts/vendor/ss928v100-demb.dts
	2	+index c202cdb08..de6f1d0d0 100644
	3	+--- a/arch/arm64/boot/dts/vendor/ss928v100-demb.dts
	4	++++ b/arch/arm64/boot/dts/vendor/ss928v100-demb.dts
	5	+@@ -135,6 +135,16 @@ backlight-key {
	6	+ debounce-interval = <50>;
	7	+ };
	8	+ };
	9	++
	10	++ /*
	11	++ * Quectel EC20 board PERST: idle/run level is low (legacy gpio-hog
	12	++ * used output-low). Driver pulses high >= 150ms then returns low.
	13	++ */
	14	++ ec20_4g {
	lijiawei9月2日 [linux-6.6/hispark_aifly_patch/0010-kernel-quectel-4g.patch:14] DTS `ec20_4g` 节点缩进使用了空格，但内核 DTS 文件约定使用制表符（tab）缩进。请将 `ec20_4g` 节点内的缩进改为制表符以保持与文件其余部分一致。
	15	++ compatible = "quectel,ec20-4g";
	16	++ reset-gpios = <&gpio_chip1 5 GPIO_ACTIVE_HIGH>;
	17	++ status = "okay";
	18	++ };
	19	+ };
	20	+
	21	+ &ipcm {
	22	+diff --git a/drivers/usb/serial/Kconfig b/drivers/usb/serial/Kconfig
	23	+index ef8d1c73c..615dd8726 100644
	24	+--- a/drivers/usb/serial/Kconfig
	25	++++ b/drivers/usb/serial/Kconfig
	26	+@@ -561,6 +561,16 @@ config USB_SERIAL_OPTION
	27	+ If this driver doesn't recognize your device,
	28	+ it might be accessible via the FTDI_SIO driver.
	29	+
	30	++config USB_SERIAL_QUECTEL_SUPPORT
	31	++ bool "Quectel USB serial modem extensions"
	lijiawei9月2日 [linux-6.6/hispark_aifly_patch/0010-kernel-quectel-4g.patch:31] `USB_SERIAL_QUECTEL_SUPPORT` 声明为 `bool`（不可编译为模块），但其依赖的 `USB_SERIAL_OPTION` 是 `tristate`。当 `USB_SERIAL_OPTION=m` 且 `USB_SERIAL_QUECTEL_SUPPORT=y` 时，`#ifdef` 代码块会被编入模块化的 option.c，但 `usb_wwan_quectel_use_zlp` 由 `EXPORT_SYMBOL_GPL` 导出，模块间依赖可能出问题。建议将 `USB_SERIAL_QUECTEL_SUPPORT` 改为 `tristate`，或添加 `depends on USB_SERIAL_OPTION=y` 约束。
	32	++ depends on USB_SERIAL_OPTION
	33	++ help
	34	++ Enable Quectel-specific extensions for option, usb_wwan and
	35	++ qcserial: extra device IDs, zero-length packet, probe quirks,
	36	++ termios init, and EC20 PERST reset sequence.
	37	++
	38	++ Say Y if your board uses a Quectel modem such as EC20.
	39	++
	40	+ config USB_SERIAL_OMNINET
	41	+ tristate "USB ZyXEL omni.net LCD Plus Driver"
	42	+ help
	43	+diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
	44	+index 6c6387d39..410f82e91 100644
	45	+--- a/drivers/usb/serial/option.c
	46	++++ b/drivers/usb/serial/option.c
	47	+@@ -639,6 +639,46 @@ static void option_instat_callback(struct urb *urb);
	48	+
	49	+
	50	+ static const struct usb_device_id option_ids[] = {
	51	++#ifdef CONFIG_USB_SERIAL_QUECTEL_SUPPORT
	52	++ { USB_DEVICE(0x05C6, 0x9090) }, /* Quectel UC15 */
	lijiawei9月2日 [linux-6.6/hispark_aifly_patch/0010-kernel-quectel-4g.patch:52] 新增的 Quectel USB 设备 ID 列表中有部分 ID 可能已存在于上游 `option_ids` 表中（如 `0x2C7C, 0x0125` 等）。重复添加会导致同一设备被匹配两次，可能引发驱动绑定问题。请逐一核对上游 `option.c` 中是否已包含这些 ID，移除重复项。
	53	++ { USB_DEVICE(0x05C6, 0x9003) }, /* Quectel UC20 */
	54	++ { USB_DEVICE(0x05C6, 0x9215) }, /* Quectel EC20(MDM9215) */
	55	++ { USB_DEVICE(0x05C6, 0x9091) }, /* Quectel QCM6125 */
	56	++ { USB_DEVICE(0x05C6, 0x90DB) }, /* Quectel QCM6490 */
	57	++ { USB_DEVICE(0x2C7C, 0x0125) }, /* Quectel EC20(MDM9x07)/EC25/EG25 */
	58	++ { USB_DEVICE(0x2C7C, 0x0121) }, /* Quectel EC21 */
	59	++ { USB_DEVICE(0x2C7C, 0x0122) }, /* Quectel RG650V / RG650 SDX7X */
	60	++ { USB_DEVICE(0x2C7C, 0x030E) }, /* Quectel EM05G */
	61	++ { USB_DEVICE(0x2C7C, 0x0191) }, /* Quectel EG91 */
	62	++ { USB_DEVICE(0x2C7C, 0x0195) }, /* Quectel EG95 */
	63	++ { USB_DEVICE(0x2C7C, 0x0306) }, /* Quectel EG06/EP06/EM06 */
	64	++ { USB_DEVICE(0x2C7C, 0x030B) }, /* Quectel EG065K/EG060K */
	65	++ { USB_DEVICE(0x2C7C, 0x0514) }, /* Quectel BL EG060K RNDIS Only */
	66	++ { USB_DEVICE(0x2C7C, 0x0512) }, /* Quectel EG12/EP12/EM12/EG16/EG18 */
	67	++ { USB_DEVICE(0x2C7C, 0x0296) }, /* Quectel BG96 */
	68	++ { USB_DEVICE(0x2C7C, 0x0700) }, /* Quectel BG95/BG77/BG600L-M3/BC69 */
	69	++ { USB_DEVICE(0x2C7C, 0x0435) }, /* Quectel AG35 */
	70	++ { USB_DEVICE(0x2C7C, 0x0415) }, /* Quectel AG15 */
	71	++ { USB_DEVICE(0x2C7C, 0x0452) }, /* Quectel AG520/AG529 */
	72	++ { USB_DEVICE(0x2C7C, 0x0455) }, /* Quectel AG550 */
	73	++ { USB_DEVICE(0x2C7C, 0x0620) }, /* Quectel EG20 */
	74	++ { USB_DEVICE(0x2C7C, 0x0800) }, /* Quectel RG500/RM500/RG510/RM510 */
	75	++ { USB_DEVICE(0x2C7C, 0x0801) }, /* Quectel RG520/RM520/SG520 */
	76	++ { USB_DEVICE(0x2C7C, 0x0133) }, /* Quectel RG650 SDX7X RNDIS / RM551E */
	77	++ { USB_DEVICE(0x2C7C, 0x0134) }, /* Quectel SDX35 AG531C */
	78	++ { USB_DEVICE(0x2C7C, 0x0316) }, /* Quectel RG255 SDX35 */
	79	++ { USB_DEVICE(0x2C7C, 0x6026) }, /* Quectel EC200 */
	80	++ { USB_DEVICE(0x2C7C, 0x6120) }, /* Quectel UC200 */
	81	++ { USB_DEVICE(0x2C7C, 0x600B) }, /* Quectel ASR1903S */
	82	++ { USB_DEVICE(0x2C7C, 0x600C) }, /* Quectel RG255A ASR1903L */
	83	++ { USB_DEVICE(0x2C7C, 0x6000) }, /* Quectel EC200/UC200 */
	84	++ { USB_DEVICE(0x2C7C, 0x7003) }, /* Quectel T750(META) */
	85	++ { USB_DEVICE(0x2C7C, 0x7008) }, /* Quectel T750 */
	86	++ { USB_DEVICE(0x2C7C, 0x7005) }, /* Quectel T830(META) */
	87	++ { USB_DEVICE(0x2C7C, 0x7006) }, /* Quectel T830 */
	88	++ { USB_DEVICE(0x3763, 0x3C93) }, /* Quectel GW */
	89	++ { USB_DEVICE(0x3C93, 0xFFFF) }, /* Quectel GW */
	90	++#endif
	91	+ { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) },
	92	+ { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA) },
	93	+ { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_LIGHT) },
	94	+@@ -2504,6 +2544,56 @@ static int option_probe(struct usb_serial *serial,
	95	+ &serial->interface->cur_altsetting->desc;
	96	+ unsigned long device_flags = id->driver_info;
	97	+
	98	++#ifdef CONFIG_USB_SERIAL_QUECTEL_SUPPORT
	99	++ /* Quectel UC20: interface 4 is USB network */
	100	++ if (serial->dev->descriptor.idVendor == cpu_to_le16(0x05C6) &&
	lijiawei9月2日 [linux-6.6/hispark_aifly_patch/0010-kernel-quectel-4g.patch:100] `option_probe` 中使用 `cpu_to_le16()` 比较 USB 厂商/产品 ID 是非标准做法。内核常规模式是使用 `le16_to_cpu()` 将 descriptor 字段转为 CPU 字节序后再与常量比较：`le16_to_cpu(serial->dev->descriptor.idVendor) == 0x05C6`。当前写法在小端系统上功能正确，但在大端系统上可能导致误匹配。建议统一改为 `le16_to_cpu()` 模式。
	101	++ serial->dev->descriptor.idProduct == cpu_to_le16(0x9003) &&
	102	++ serial->interface->cur_altsetting->desc.bInterfaceNumber >= 4)
	103	++ return -ENODEV;
	104	++
	105	++ /* Quectel EC20(MDM9215): interface 4 is USB network */
	106	++ if (serial->dev->descriptor.idVendor == cpu_to_le16(0x05C6) &&
	107	++ serial->dev->descriptor.idProduct == cpu_to_le16(0x9215) &&
	108	++ serial->interface->cur_altsetting->desc.bInterfaceNumber >= 4)
	109	++ return -ENODEV;
	110	++
	111	++ /* Quectel QCM6125/QCM6490: interface 2+ is USB network */
	112	++ if (serial->dev->descriptor.idVendor == cpu_to_le16(0x05C6) &&
	113	++ (serial->dev->descriptor.idProduct == cpu_to_le16(0x9091) \|\|
	114	++ serial->dev->descriptor.idProduct == cpu_to_le16(0x90DB)) &&
	115	++ serial->interface->cur_altsetting->desc.bInterfaceNumber >= 2)
	116	++ return -ENODEV;
	117	++
	118	++ /* Netprisma PCUL11-LD(MDM9205): interface 3+ is USB network */
	119	++ if (serial->dev->descriptor.idVendor == cpu_to_le16(0x3731) &&
	120	++ serial->dev->descriptor.idProduct == cpu_to_le16(0x0102) &&
	121	++ serial->interface->cur_altsetting->desc.bInterfaceNumber >= 3)
	122	++ return -ENODEV;
	123	++
	124	++ if (serial->dev->descriptor.idVendor == cpu_to_le16(0x2C7C)) {
	125	++ __u16 idProduct = le16_to_cpu(serial->dev->descriptor.idProduct);
	126	++ struct usb_interface_descriptor *intf =
	127	++ &serial->interface->cur_altsetting->desc;
	128	++
	129	++ if (intf->bInterfaceClass != 0xFF \|\| intf->bInterfaceSubClass == 0x42)
	130	++ return -ENODEV;
	131	++
	132	++ if ((idProduct & 0xF000) == 0x0000) {
	133	++ /* MDM interface 4 is QMI; SDX35 uses interface 3 */
	134	++ if (idProduct == 0x0316 && intf->bInterfaceNumber == 3)
	135	++ return -ENODEV;
	136	++
	137	++ if (idProduct == 0x0121 && intf->bInterfaceNumber == 4)
	138	++ return -ENODEV;
	139	++
	140	++ if (intf->bInterfaceNumber == 4 && intf->bNumEndpoints == 3 &&
	141	++ intf->bInterfaceSubClass == 0xFF &&
	142	++ intf->bInterfaceProtocol == 0xFF)
	143	++ return -ENODEV;
	144	++ }
	145	++ }
	146	++#endif
	147	++
	148	+ /* Never bind to the CD-Rom emulation interface */
	149	+ if (iface_desc->bInterfaceClass == USB_CLASS_MASS_STORAGE)
	150	+ return -ENODEV;
	151	+@@ -2523,6 +2613,12 @@ static int option_probe(struct usb_serial *serial,
	152	+ if (device_flags & NUMEP2 && iface_desc->bNumEndpoints != 2)
	153	+ return -ENODEV;
	154	+
	155	++#ifdef CONFIG_USB_SERIAL_QUECTEL_SUPPORT
	156	++ /* Fold Quectel ZLP quirk into the generic use_zlp path. */
	157	++ if (usb_wwan_quectel_use_zlp(serial->dev))
	158	++ device_flags \|= ZLP;
	159	++#endif
	160	++
	161	+ /* Store the device flags so we can use them during attach. */
	162	+ usb_set_serial_data(serial, (void *)device_flags);
	163	+
	164	+diff --git a/drivers/usb/serial/qcserial.c b/drivers/usb/serial/qcserial.c
	165	+index 061ff754b..d90e93291 100644
	166	+--- a/drivers/usb/serial/qcserial.c
	167	++++ b/drivers/usb/serial/qcserial.c
	168	+@@ -63,7 +63,9 @@ static const struct usb_device_id id_table[] = {
	169	+ {DEVICE_G1K(0x05c6, 0x9202)}, /* Generic Gobi Modem device */
	170	+ {DEVICE_G1K(0x05c6, 0x9203)}, /* Generic Gobi Modem device */
	171	+ {DEVICE_G1K(0x05c6, 0x9222)}, /* Generic Gobi Modem device */
	172	++#ifndef CONFIG_USB_SERIAL_QUECTEL_SUPPORT
	173	+ {DEVICE_G1K(0x05c6, 0x9008)}, /* Generic Gobi QDL device */
	174	++#endif
	175	+ {DEVICE_G1K(0x05c6, 0x9009)}, /* Generic Gobi Modem device */
	176	+ {DEVICE_G1K(0x05c6, 0x9201)}, /* Generic Gobi QDL device */
	177	+ {DEVICE_G1K(0x05c6, 0x9221)}, /* Generic Gobi QDL device */
	178	+@@ -439,6 +441,11 @@ static int qc_attach(struct usb_serial *serial)
	179	+ if (sendsetup)
	180	+ data->use_send_setup = 1;
	181	+
	182	++#ifdef CONFIG_USB_SERIAL_QUECTEL_SUPPORT
	183	++ if (usb_wwan_quectel_use_zlp(serial->dev))
	184	++ data->use_zlp = 1;
	185	++#endif
	186	++
	187	+ spin_lock_init(&data->susp_lock);
	188	+
	189	+ usb_set_serial_data(serial, data);
	190	+diff --git a/drivers/usb/serial/usb-wwan.h b/drivers/usb/serial/usb-wwan.h
	191	+index 519101945..91dff5a51 100644
	192	+--- a/drivers/usb/serial/usb-wwan.h
	193	++++ b/drivers/usb/serial/usb-wwan.h
	194	+@@ -6,6 +6,8 @@
	195	+ #ifndef __LINUX_USB_USB_WWAN
	196	+ #define __LINUX_USB_USB_WWAN
	197	+
	198	++/* Quectel extensions are gated by CONFIG_USB_SERIAL_QUECTEL_SUPPORT. */
	199	++
	200	+ extern void usb_wwan_dtr_rts(struct usb_serial_port *port, int on);
	201	+ extern int usb_wwan_open(struct tty_struct tty, struct usb_serial_port port);
	202	+ extern void usb_wwan_close(struct usb_serial_port *port);
	203	+@@ -22,6 +24,9 @@ extern unsigned int usb_wwan_chars_in_buffer(struct tty_struct *tty);
	204	+ extern int usb_wwan_suspend(struct usb_serial *serial, pm_message_t message);
	205	+ extern int usb_wwan_resume(struct usb_serial *serial);
	206	+ #endif
	207	++#ifdef CONFIG_USB_SERIAL_QUECTEL_SUPPORT
	208	++extern bool usb_wwan_quectel_use_zlp(struct usb_device *udev);
	209	++#endif
	210	+
	211	+ /* per port private data */
	212	+
	213	+diff --git a/drivers/usb/serial/usb_wwan.c b/drivers/usb/serial/usb_wwan.c
	214	+index fc87c4307..679a7c73d 100644
	215	+--- a/drivers/usb/serial/usb_wwan.c
	216	++++ b/drivers/usb/serial/usb_wwan.c
	217	+@@ -228,11 +228,7 @@ static void usb_wwan_indat_callback(struct urb *urb)
	218	+ __func__, status, endpoint);
	219	+
	220	+ /* don't resubmit on fatal errors */
	221	+-#ifdef CONFIG_ARCH_HISILICON
	222	+- if (status == -ESHUTDOWN \|\| status == -ENOENT \|\| status == -EPROTO)
	223	+-#else
	224	+ if (status == -ESHUTDOWN \|\| status == -ENOENT)
	lijiawei9月2日 [linux-6.6/hispark_aifly_patch/0010-kernel-quectel-4g.patch:224] 移除 `#ifdef CONFIG_ARCH_HISILICON` 对 `-EPROTO` 的处理，会影响所有 HiSilicon 平台（不仅限 Quectel）。在 USB 物理断开时，`-EPROTO` 是常见错误码，移除此检查会导致 HiSilicon 平台上 URB 在 `-EPROTO` 时仍被重新提交，可能引发持续错误循环。此修改与 Quectel 4G 适配无关，应独立提交并说明原因，或保留原有条件编译。
	225	+-#endif
	226	+ return;
	227	+ } else {
	228	+ if (urb->actual_length) {
	229	+@@ -657,6 +653,32 @@ int usb_wwan_resume(struct usb_serial *serial)
	230	+ EXPORT_SYMBOL(usb_wwan_resume);
	231	+ #endif
	232	+
	233	++#ifdef CONFIG_USB_SERIAL_QUECTEL_SUPPORT
	234	++/*
	235	++ * Quectel (and related) modems need URB_ZERO_PACKET on bulk OUT.
	236	++ * Callers set intfdata->use_zlp so usb_wwan_setup_urb applies it once.
	237	++ */
	238	++bool usb_wwan_quectel_use_zlp(struct usb_device *udev)
	239	++{
	240	++ u16 vid = le16_to_cpu(udev->descriptor.idVendor);
	241	++ u16 pid = le16_to_cpu(udev->descriptor.idProduct);
	242	++
	243	++ if (vid == 0x2c7c)
	244	++ return true;
	245	++
	246	++ if (vid == 0x05c6 &&
	247	++ (pid == 0x9090 \|\| pid == 0x9003 \|\| pid == 0x9215 \|\|
	248	++ pid == 0x9091 \|\| pid == 0x90db))
	249	++ return true;
	250	++
	251	++ if (vid == 0x3731 && (pid == 0x0102 \|\| pid == 0x0103))
	252	++ return true;
	253	++
	254	++ return false;
	255	++}
	256	++EXPORT_SYMBOL_GPL(usb_wwan_quectel_use_zlp);
	257	++#endif
	258	++
	259	+ MODULE_AUTHOR(DRIVER_AUTHOR);
	260	+ MODULE_DESCRIPTION(DRIVER_DESC);
	261	+ MODULE_LICENSE("GPL v2");
	262	+diff --git a/drivers/vendor/basedrv_clk/ss928v100/clk_ups.c b/drivers/vendor/basedrv_clk/ss928v100/clk_ups.c
	263	+index 45052a687..0f1186cc4 100644
	264	+--- a/drivers/vendor/basedrv_clk/ss928v100/clk_ups.c
	265	++++ b/drivers/vendor/basedrv_clk/ss928v100/clk_ups.c
	266	+@@ -19,6 +19,9 @@
	267	+ #include <dt-bindings/clock/basedrv-clock.h>
	268	+ #include <asm/io.h>
	269	+ #include <linux/delay.h>
	270	++#include <linux/gpio.h>
	271	++#include <linux/of.h>
	272	++#include <linux/of_gpio.h>
	273	+
	274	+ #include "../basedrv_clk.h"
	275	+
	276	+@@ -66,6 +69,19 @@
	277	+ #define PITOUT_CTRL1_PWREN_OFFSET 0X3C
	278	+ #define PITOUT_CTRL1_VBUS_OFFSET 0x38
	279	+ #define PINOUT_USB_VAL 0x1201
	280	++#ifdef CONFIG_USB_SERIAL_QUECTEL_SUPPORT
	281	++#define IO_CFG_REG13_OFFSET 0x34
	282	++#define IO_CFG_REG13_MUX_MASK 0xf
	283	++#define IO_CFG_REG13_GPIO1_5_MUX 0x2
	284	++/*
	285	++ * Board "4g-perst" idle/run level is low (see former gpio-hog output-low).
	286	++ * Assert reset by driving high for >= 150ms, then return low to run.
	287	++ */
	288	++#define EC20_PERST_HOLD_MS 150
	289	++#define GPIO1_REG_BASE 0x11091000
	290	++#define PL061_GPIODIR 0x400
	291	++#define EC20_PERST_PIN 5
	292	++#endif
	293	+
	294	+ static unsigned int basedrv_clk_readl(const void __iomem *addr)
	295	+ {
	296	+@@ -88,6 +104,106 @@ typedef enum mode {
	297	+ UNKOWN_MODE
	298	+ } combphy_mode;
	299	+
	300	++#ifdef CONFIG_USB_SERIAL_QUECTEL_SUPPORT
	301	++/*
	302	++ * Step 1 of PERST bring-up: mux GPIO1_5 to GPIO mode only.
	303	++ * Direction and level are set in ec20_4g_perst_reset_seq() / _mmio_seq().
	304	++ */
	305	++static void ec20_4g_perst_pinmux_cfg(void __iomem *pinout_base)
	306	++{
	307	++ u32 val;
	308	++
	309	++ val = basedrv_clk_readl(pinout_base + IO_CFG_REG13_OFFSET);
	310	++ val = (val & ~IO_CFG_REG13_MUX_MASK) \| IO_CFG_REG13_GPIO1_5_MUX;
	311	++ basedrv_clk_writel(val, pinout_base + IO_CFG_REG13_OFFSET);
	312	++}
	313	++
	314	++/*
	315	++ * Step 2 (MMIO fallback): set GPIO1_5 as output and pulse PERST.
	316	++ *
	317	++ * Note: Quectel RESET_N datasheet is active-low (high = run). This board's
	318	++ * "4g-perst" line matches the former gpio-hog idle level: low = run,
	319	++ * high = reset. Verified with EC20F USB enumeration.
	320	++ */
	321	++static void ec20_4g_perst_mmio_seq(void)
	322	++{
	323	++ void __iomem *gpio;
	324	++ u32 dir;
	325	++
	326	++ gpio = ioremap(GPIO1_REG_BASE, 0x1000);
	327	++ if (!gpio) {
	328	++ basedrv_clk_info("map GPIO1 for EC20 PERST failed\n");
	329	++ return;
	330	++ }
	331	++
	332	++ /* Output direction for GPIO1_5 */
	333	++ dir = basedrv_clk_readl(gpio + PL061_GPIODIR);
	334	++ basedrv_clk_writel(dir \| BIT(EC20_PERST_PIN), gpio + PL061_GPIODIR);
	335	++
	336	++ /* Assert reset (high), hold, then release to run (low). */
	337	++ basedrv_clk_writel(BIT(EC20_PERST_PIN), gpio + (BIT(EC20_PERST_PIN) << 2));
	lijiawei9月2日 [linux-6.6/hispark_aifly_patch/0010-kernel-quectel-4g.patch:337] `ec20_4g_perst_mmio_seq` 中 GPIO 寄存器写入模式 `basedrv_clk_writel(BIT(EC20_PERST_PIN), gpio + (BIT(EC20_PERST_PIN) << 2))` 假设 PL061 控制器具有按位原子设置寄存器。但标准 PL061 IP 只有一个数据寄存器（偏移 0x0），写操作是全字写入而非按位操作。若此处依赖的是厂商扩展寄存器布局，请添加注释说明；否则应改为读-改-写模式操作数据寄存器。
	338	++ msleep(EC20_PERST_HOLD_MS);
	339	++ basedrv_clk_writel(0, gpio + (BIT(EC20_PERST_PIN) << 2));
	340	++
	341	++ iounmap(gpio);
	342	++ basedrv_clk_info("EC20 PERST reset done via MMIO (high %u ms then low)\n",
	343	++ EC20_PERST_HOLD_MS);
	344	++}
	345	++
	346	++/*
	347	++ * Full EC20 PERST after VBUS is enabled:
	348	++ * 1) pinmux GPIO1_5
	349	++ * 2) request GPIO (or MMIO), set output
	350	++ * 3) pulse high >= 150ms, hold low to run
	351	++ */
	352	++static void ec20_4g_perst_reset_seq(void __iomem *pinout_base)
	353	++{
	354	++ static bool done;
	lijiawei9月2日 [linux-6.6/hispark_aifly_patch/0010-kernel-quectel-4g.patch:354] `ec20_4g_perst_reset_seq` 中使用 `static bool done` 控制只执行一次，但无任何锁保护。若 `usb_pinout_cfg` 可能在多线程上下文中被调用，存在竞态条件。建议使用 `atomic_t` 或 `READ_ONCE`/`WRITE_ONCE` 保护，或添加注释说明调用上下文保证串行执行。
	355	++ struct device_node *np;
	356	++ int gpio;
	357	++ int ret;
	358	++
	359	++ if (done)
	360	++ return;
	361	++
	362	++ ec20_4g_perst_pinmux_cfg(pinout_base);
	363	++
	364	++ np = of_find_compatible_node(NULL, NULL, "quectel,ec20-4g");
	365	++ if (!np) {
	366	++ basedrv_clk_info("EC20 DT node missing, use MMIO PERST\n");
	367	++ ec20_4g_perst_mmio_seq();
	368	++ done = true;
	369	++ return;
	370	++ }
	371	++
	372	++ gpio = of_get_named_gpio(np, "reset-gpios", 0);
	373	++ of_node_put(np);
	374	++ if (!gpio_is_valid(gpio)) {
	375	++ basedrv_clk_info("EC20 PERST gpio invalid, use MMIO\n");
	376	++ ec20_4g_perst_mmio_seq();
	377	++ done = true;
	378	++ return;
	379	++ }
	380	++
	381	++ ret = gpio_request(gpio, "ec20-perst");
	lijiawei9月2日 [linux-6.6/hispark_aifly_patch/0010-kernel-quectel-4g.patch:381] `gpio_request(gpio, "ec20-perst")` 成功后，GPIO 永不释放。虽然注释说明是为了保持低电平驱动，但 `done = true` 标志也会阻止后续调用进入 MMIO 回退路径。若 GPIO request 失败后通过 MMIO 完成 reset，`done = true` 会阻止重试。建议在注释中明确说明 GPIO 和 `done` 标志的生命周期管理策略。
	382	++ if (ret) {
	383	++ basedrv_clk_info("EC20 PERST gpio_request %d, use MMIO\n", ret);
	384	++ ec20_4g_perst_mmio_seq();
	385	++ done = true;
	386	++ return;
	387	++ }
	388	++
	389	++ /* Output + reset pulse: high (assert) then low (run). */
	390	++ gpio_direction_output(gpio, 1);
	391	++ msleep(EC20_PERST_HOLD_MS);
	392	++ gpio_set_value(gpio, 0);
	393	++ /* Keep ownership so line stays driven low (run). */
	394	++ done = true;
	395	++ basedrv_clk_info("EC20 PERST reset done (high %u ms then low)\n",
	396	++ EC20_PERST_HOLD_MS);
	397	++}
	398	++#endif
	399	++
	400	+ static void usb_pinout_cfg(void)
	401	+ {
	402	+ void __iomem *addr = NULL;
	403	+@@ -102,6 +218,9 @@ static void usb_pinout_cfg(void)
	404	+ basedrv_clk_writel(PINOUT_USB_VAL, addr + PITOUT_CTRL1_PWREN_OFFSET);
	405	+ basedrv_clk_writel(PINOUT_USB_VAL, addr + PITOUT_CTRL1_VBUS_OFFSET);
	406	+ udelay(200); /* delay 200 us to wait vbus stable */
	407	++#ifdef CONFIG_USB_SERIAL_QUECTEL_SUPPORT
	408	++ ec20_4g_perst_reset_seq(addr);
	409	++#endif
	410	+
	411	+ iounmap(addr);
	412	+ addr = NULL;

Alinux-6.6/hispark_aifly_patch/patch_hispark_aifly.sh+67-0

@@ -0,0 +1,67 @@
	1	+#!/bin/sh
	2	+# Copyright (c) 2026 HiSilicon (Shanghai) Technologies Co., Ltd.
	3	+# This program is free software; you can redistribute it and/or
	4	+# modify it under the terms of the GNU General Public License
	5	+# as published by the Free Software Foundation; either version 2
	6	+# of the License, or (at your option) any later version.
	7	+#
	8	+# This program is distributed in the hope that it will be useful,
	9	+# but WITHOUT ANY WARRANTY; without even the implied warranty of
	10	+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	11	+# GNU General Public License for more details.
	12	+#
	13	+# You should have received a copy of the GNU General Public License
	14	+# along with this program; if not, see
	15	+# <https://www.gnu.org/licenses/>.
	16	+
	17	+patch_dir=${1}
	18	+echo "${patch_dir}: ${1}"
	19	+echo "Current directory $(pwd)"
	20	+echo "patching aifly begin..."
	21	+
	22	+# Apply patch idempotently: skip if already applied, fail on real conflicts.
	23	+apply_patch() {
	24	+ patch_file="$1"
	25	+ name=$(basename "${patch_file}")
	26	+
	27	+ if patch -p1 --dry-run < "${patch_file}" >/dev/null 2>&1; then
	28	+ patch -p1 < "${patch_file}" \|\| exit 1
	29	+ echo "Applied: ${name}"
	30	+ elif patch -p1 --dry-run -R < "${patch_file}" >/dev/null 2>&1; then
	31	+ echo "Already applied, skipping: ${name}"
	32	+ else
	33	+ echo "Failed to apply patch: ${name}" >&2
	34	+ exit 1
	35	+ fi
	36	+}
	37	+
	38	+# DTC resolves <dt-bindings/...> only under scripts/dtc/include-prefixes.
	39	+# Vendor patches add new headers under include/dt-bindings; hardlink any
	40	+# missing files into the DTC include tree.
	41	+sync_dt_bindings() {
	42	+ src_root="include/dt-bindings"
	43	+ dtc_root="scripts/dtc/include-prefixes/dt-bindings"
	44	+
	45	+ [ -d "${src_root}" ] \|\| return 0
	46	+
	47	+ find "${src_root}" -type f \| while read -r src; do
	48	+ rel="${src#${src_root}/}"
	49	+ dst="${dtc_root}/${rel}"
	50	+ [ -e "${dst}" ] && continue
	51	+ mkdir -p "$(dirname "${dst}")"
	52	+ ln "${src}" "${dst}"
	lijiawei9月1日 [linux-6.6/hispark_aifly_patch/patch_hispark_aifly.sh:52] 使用硬链接 ln 而非符号链接 ln -s。若 include/dt-bindings 和 scripts/dtc/include-prefixes 位于不同文件系统，硬链接将失败。建议改用 ln -s 或 cp 以增强兼容性。
	53	+ done
	54	+}
	55	+
	56	+apply_patch "${patch_dir}/0001-kernel-hispark_aifly.patch"
	57	+apply_patch "${patch_dir}/0002-kernel-compile-support.patch"
	58	+apply_patch "${patch_dir}/0003-kernel-drm.patch"
	59	+apply_patch "${patch_dir}/0004-kernel-vo.patch"
	60	+apply_patch "${patch_dir}/0005-kernel-dhcp-support.patch"
	61	+apply_patch "${patch_dir}/0006-kernel-mipi-support.patch"
	62	+apply_patch "${patch_dir}/0007-kernel-nca9555.patch"
	63	+apply_patch "${patch_dir}/0008-power-key-dts.patch"
	64	+apply_patch "${patch_dir}/0009-hdf-soc-path.patch"
	65	+apply_patch "${patch_dir}/0010-kernel-quectel-4g.patch"
	66	+sync_dt_bindings
	67	+echo "patching aifly finished..."