diff --git a/drivers/media/vout/lcd/backlight/bl_ldim/ldim_debug.c b/drivers/media/vout/lcd/backlight/bl_ldim/ldim_debug.c
index c74b9d9af..64511a1f8 100644
--- a/drivers/media/vout/lcd/backlight/bl_ldim/ldim_debug.c
+++ b/drivers/media/vout/lcd/backlight/bl_ldim/ldim_debug.c
@@ -666,7 +666,7 @@ static ssize_t ldim_attr_store(struct class *cla, struct class_attribute *attr,
 
 			ldim_drv->level_idx = (unsigned char)val1;
 
-			fw->fw_ctrl &= ~0xf;
+			fw->fw_ctrl &= ~FW_CTRL_LEVEL_IDX;
 			fw->fw_ctrl |= ldim_drv->level_idx;
 
 			fw_pq = ldim_pq.pqdata[ldim_drv->level_idx];
@@ -1089,6 +1089,24 @@ static ssize_t ldim_debug_store(struct class *class, struct class_attribute *att
 		ldim_time_print(ldim_drv->arithmetic_time);
 		pr_info("xfer_time:\n");
 		ldim_time_print(ldim_drv->xfer_time);
+	} else if (!strcmp(parm[0], "fw_iparam")) {
+		if (!fw->iparam)
+			goto ldim_debug_store_err;
+		if (parm[2]) {
+			if (kstrtouint(parm[1], 0, &temp) < 0)
+				goto ldim_debug_store_err;
+			if (kstrtouint(parm[2], 0, &val) < 0)
+				goto ldim_debug_store_err;
+			fw->iparam[temp] = val;
+		}
+		for (i = 0; i < FW_IPARAM_LEN; i++)
+			pr_info("iparam[%d]: 0x%x\n", i, fw->iparam[i]);
+	} else if (!strcmp(parm[0], "fw_oparam")) {
+		if (!fw->oparam)
+			goto ldim_debug_store_err;
+
+		for (i = 0; i < FW_IPARAM_LEN; i++)
+			pr_info("oparam[%d]:0x%x\n", i, fw->oparam[i]);
 	} else {
 		pr_info("no support cmd!!!\n");
 	}
diff --git a/drivers/media/vout/lcd/backlight/bl_ldim/ldim_drv.c b/drivers/media/vout/lcd/backlight/bl_ldim/ldim_drv.c
index 4bd12de05..4f8d2ae78 100644
--- a/drivers/media/vout/lcd/backlight/bl_ldim/ldim_drv.c
+++ b/drivers/media/vout/lcd/backlight/bl_ldim/ldim_drv.c
@@ -197,7 +197,7 @@ static int ldim_power_on(void)
 	LDIMPR("%s\n", __func__);
 
 	if (fw || ldim_driver.dev_drv) {
-		fw->fw_ctrl |= 0x0800; // FW_CTRL_RESUME
+		fw->fw_ctrl |= FW_CTRL_RESUME;
 		if (ldim_driver.dev_drv->spi_sync == SPI_DMA_TRIG)
 			ldim_wr_vcbus(VPP_INT_LINE_NUM, ldim_driver.dev_drv->spi_line_n);
 
@@ -311,6 +311,7 @@ static int ldim_set_level(unsigned int level)
 	} else {
 		level &= 0xfff;
 		ldim_driver.litgain = (unsigned int)level;
+		ldim_driver.fw->litgain = ldim_driver.litgain;
 		ldim_driver.level_update = 1;
 	}
 
@@ -344,8 +345,9 @@ static void ldim_ld_sel_ctrl(int flag)
 	}
 
 	if (ldim_driver.fw) {
-		ldim_driver.fw->fw_ctrl &= ~0x10;//bit 4
-		ldim_driver.fw->fw_ctrl |= ldim_driver.ld_sel << 4;
+		ldim_driver.fw->fw_ctrl &= ~FW_CTRL_LD_SEL;//bit 4
+		if (ldim_driver.ld_sel)
+			ldim_driver.fw->fw_ctrl |= FW_CTRL_LD_SEL;
 	}
 }
 
@@ -385,6 +387,7 @@ static void ldim_fw_vsync_update(void)
 		ldim_driver.resolution_update = 0;
 		fw->res_update = 0;
 	}
+
 }
 
 void ldim_vs_arithmetic(struct aml_ldim_driver_s *ldim_drv)
@@ -777,7 +780,7 @@ static long ldim_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 			return -EFAULT;
 		}
 
-		ldim_driver.fw->fw_ctrl &= ~0xf;
+		ldim_driver.fw->fw_ctrl &= ~FW_CTRL_LEVEL_IDX;
 		ldim_driver.fw->fw_ctrl |= ldim_driver.level_idx;
 
 		fw_pq = ldim_pq.pqdata[ldim_driver.level_idx];
@@ -852,7 +855,7 @@ static long ldim_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 			vfree(bl_matrix);
 			return -EFAULT;
 		}
-		fw->fw_ctrl |= 0x1000;//FW_CTRL_BYPASS_REMAP_BL
+		fw->fw_ctrl |= FW_CTRL_BYPASS_REMAP_BL;
 		if (fw->fw_rmem_duty_set)
 			fw->fw_rmem_duty_set(bl_matrix);
 		vfree(bl_matrix);
@@ -1050,6 +1053,7 @@ static int aml_ldim_malloc(struct platform_device *pdev, struct ldim_drv_data_s
 	unsigned int zone_num = row * col;
 	unsigned int mem_size;
 	int i, ret = 0;
+	struct ldim_fw_s *fw = aml_ldim_get_fw();
 	struct ldim_fw_custom_s *fw_cus = aml_ldim_get_fw_cus();
 
 	/* init reserved memory */
@@ -1099,8 +1103,23 @@ static int aml_ldim_malloc(struct platform_device *pdev, struct ldim_drv_data_s
 			goto ldim_malloc_t7_err4;
 	}
 
+	if (fw) {
+		fw->iparam = kcalloc(FW_IPARAM_LEN, sizeof(int), GFP_KERNEL);
+		if (!fw->iparam)
+			goto ldim_malloc_t7_err5;
+		fw->oparam = kcalloc(FW_IPARAM_LEN, sizeof(int), GFP_KERNEL);
+		if (!fw->oparam)
+			goto ldim_malloc_t7_err6;
+	}
+
 	return 0;
 
+ldim_malloc_t7_err6:
+	if (fw)
+		kfree(fw->iparam);
+ldim_malloc_t7_err5:
+	if (fw_cus)
+		kfree(fw_cus->param);
 ldim_malloc_t7_err4:
 	kfree(ldim_driver.test_matrix);
 ldim_malloc_t7_err3:
diff --git a/drivers/media/vout/lcd/backlight/bl_ldim/ldim_drv.h b/drivers/media/vout/lcd/backlight/bl_ldim/ldim_drv.h
index d13f0a41e..321f79163 100644
--- a/drivers/media/vout/lcd/backlight/bl_ldim/ldim_drv.h
+++ b/drivers/media/vout/lcd/backlight/bl_ldim/ldim_drv.h
@@ -27,8 +27,9 @@
 /*20230915: add cus_fw set pq */
 /*20231108: remove ldim_off_vs_brightness */
 /*20231208: support spi dma trig interface */
+/*20240730: add fw iparam */
 
-#define LDIM_DRV_VER    "20231208"
+#define LDIM_DRV_VER    "20240730"
 
 enum spi_sync_type_e {
 	SPI_SYNC	= 0x00,
@@ -43,6 +44,8 @@ enum spiout_type_e {
 	SPIOUT_MAX,
 };
 
+#define FW_IPARAM_LEN		16
+
 #define LDIM_DBG_PR_VSYNC_ISR		0x80
 #define LDIM_DBG_PR_PWM_VS_ISR		0x40
 #define LDIM_DBG_PR_DEV_DBG_INFO	0x20
diff --git a/drivers/media/vout/lcd/backlight/bl_ldim/ldim_fw_param.c b/drivers/media/vout/lcd/backlight/bl_ldim/ldim_fw_param.c
index c0220dc82..f8611966f 100644
--- a/drivers/media/vout/lcd/backlight/bl_ldim/ldim_fw_param.c
+++ b/drivers/media/vout/lcd/backlight/bl_ldim/ldim_fw_param.c
@@ -34,8 +34,11 @@ static struct ldim_fw_s ldim_fw = {
 	.func_en = 1,
 	.remap_en = 0,
 	.res_update = 0,
-	.fw_ctrl = 0x10,/*bit4:ld_sel*/
+	.litgain = LD_DATA_MAX,
+	.fw_ctrl = FW_CTRL_LD_SEL,/*bit4:ld_sel*/
 	.fw_state = 0,
+	.iparam = NULL,
+	.oparam = NULL,
 
 	.bl_matrix_dbg = 0,
 	.fw_hist_print = 0,
diff --git a/include/linux/amlogic/media/vout/lcd/aml_ldim.h b/include/linux/amlogic/media/vout/lcd/aml_ldim.h
index 74a52f2ba..e644377e3 100644
--- a/include/linux/amlogic/media/vout/lcd/aml_ldim.h
+++ b/include/linux/amlogic/media/vout/lcd/aml_ldim.h
@@ -45,8 +45,8 @@ struct ldim_config_s {
 };
 
 #define LDIM_DEV_NAME_MAX    30
-#define LDIM_INIT_ON_MAX     1000
-#define LDIM_INIT_OFF_MAX    24
+#define LDIM_INIT_ON_MAX     2000
+#define LDIM_INIT_OFF_MAX    100
 struct ldim_dev_driver_s {
 	unsigned char index;
 	char name[LDIM_DEV_NAME_MAX];
diff --git a/include/linux/amlogic/media/vout/lcd/ldim_fw.h b/include/linux/amlogic/media/vout/lcd/ldim_fw.h
index 130f81e0a..2ed2fd40e 100644
--- a/include/linux/amlogic/media/vout/lcd/ldim_fw.h
+++ b/include/linux/amlogic/media/vout/lcd/ldim_fw.h
@@ -123,6 +123,26 @@ struct fw_pqdata_s {
 	struct fw_pq_s pqdata[4];
 };
 
+/* fw_ctrl description
+ * bit31: pqbypass
+ * bit30: get hist
+ * bit29: bypass alg
+ * bit28: bypass remap bl
+ * bit27: resume
+ * bit5:  boost_en
+ * bit4:  ld sel
+ * bit3--0:  level_idx
+ */
+#define FW_CTRL_PQBYPASS 0x80000000
+#define FW_CTRL_GET_HIST 0x40000000
+#define FW_CTRL_BYPASS_ALG 0x20000000
+#define FW_CTRL_BYPASS_REMAP_BL 0x10000000
+#define FW_CTRL_RESUME 0x08000000
+
+#define FW_CTRL_BOOST_EN 0x00000020
+#define FW_CTRL_LD_SEL 0x00000010
+#define FW_CTRL_LEVEL_IDX 0x0000000F
+
 struct ldim_fw_s {
 	/* header */
 	unsigned int para_ver;
@@ -138,8 +158,16 @@ struct ldim_fw_s {
 	unsigned char func_en;
 	unsigned char remap_en;
 	unsigned char res_update;
+	unsigned int litgain;
 	unsigned int fw_ctrl;
+
+	/* fw_state description
+	 * bit1: boost change state
+	 * bit0: bbd state
+	 */
 	unsigned int fw_state;
+	int *iparam;
+	int *oparam;
 
 	unsigned int bl_matrix_dbg;
 	unsigned char fw_hist_print;
@@ -193,8 +221,9 @@ struct ldim_fw_custom_s {
 
 /* if struct ldim_fw_s changed, FW_PARA_VER must be update */
 /*20221118 version 1*/
-/*20230915 version 2*/
-#define FW_PARA_VER    2
+/*20230915 version 2 modify interface for set pq*/
+/*20230915 version 3 add in_param, out_param*/
+#define FW_PARA_VER    3
 
 struct ldim_fw_s *aml_ldim_get_fw(void);
 struct ldim_fw_custom_s *aml_ldim_get_fw_cus(void);