xref: /src/sys/external/gpl2/dts/dist/include/dt-bindings/clock/rockchip,rk3576-cru.h

/*	$NetBSD: rockchip,rk3576-cru.h,v 1.1.1.1 2026/01/18 05:21:40 skrll Exp $	*/

/* SPDX-License-Identifier: (GPL-2.0 OR MIT) */
/*
 * Copyright (c) 2023 Rockchip Electronics Co. Ltd.
 * Copyright (c) 2024 Collabora Ltd.
 *
 * Author: Elaine Zhang <zhangqing@rock-chips.com>
 * Author: Detlev Casanova <detlev.casanova@collabora.com>
 */

#ifndef _DT_BINDINGS_CLK_ROCKCHIP_RK3576_H
#define _DT_BINDINGS_CLK_ROCKCHIP_RK3576_H

/* cru-clocks indices */

/* cru plls */
#define PLL_BPLL			0
#define PLL_LPLL			1
#define PLL_VPLL			2
#define PLL_AUPLL			3
#define PLL_CPLL			4
#define PLL_GPLL			5
#define PLL_PPLL			6
#define ARMCLK_L			7
#define ARMCLK_B			8

/* cru clocks */
#define CLK_CPLL_DIV20			9
#define CLK_CPLL_DIV10			10
#define CLK_GPLL_DIV8			11
#define CLK_GPLL_DIV6			12
#define CLK_CPLL_DIV4			13
#define CLK_GPLL_DIV4			14
#define CLK_SPLL_DIV2			15
#define CLK_GPLL_DIV3			16
#define CLK_CPLL_DIV2			17
#define CLK_GPLL_DIV2			18
#define CLK_SPLL_DIV1			19
#define PCLK_TOP_ROOT			20
#define ACLK_TOP			21
#define HCLK_TOP			22
#define CLK_AUDIO_FRAC_0		23
#define CLK_AUDIO_FRAC_1		24
#define CLK_AUDIO_FRAC_2		25
#define CLK_AUDIO_FRAC_3		26
#define CLK_UART_FRAC_0			27
#define CLK_UART_FRAC_1			28
#define CLK_UART_FRAC_2			29
#define CLK_UART1_SRC_TOP		30
#define CLK_AUDIO_INT_0			31
#define CLK_AUDIO_INT_1			32
#define CLK_AUDIO_INT_2			33
#define CLK_PDM0_SRC_TOP		34
#define CLK_PDM1_OUT			35
#define CLK_GMAC0_125M_SRC		36
#define CLK_GMAC1_125M_SRC		37
#define LCLK_ASRC_SRC_0			38
#define LCLK_ASRC_SRC_1			39
#define REF_CLK0_OUT_PLL		40
#define REF_CLK1_OUT_PLL		41
#define REF_CLK2_OUT_PLL		42
#define REFCLKO25M_GMAC0_OUT		43
#define REFCLKO25M_GMAC1_OUT		44
#define CLK_CIFOUT_OUT			45
#define CLK_GMAC0_RMII_CRU		46
#define CLK_GMAC1_RMII_CRU		47
#define CLK_OTPC_AUTO_RD_G		48
#define CLK_OTP_PHY_G			49
#define CLK_MIPI_CAMERAOUT_M0		50
#define CLK_MIPI_CAMERAOUT_M1		51
#define CLK_MIPI_CAMERAOUT_M2		52
#define MCLK_PDM0_SRC_TOP		53
#define HCLK_AUDIO_ROOT			54
#define HCLK_ASRC_2CH_0			55
#define HCLK_ASRC_2CH_1			56
#define HCLK_ASRC_4CH_0			57
#define HCLK_ASRC_4CH_1			58
#define CLK_ASRC_2CH_0			59
#define CLK_ASRC_2CH_1			60
#define CLK_ASRC_4CH_0			61
#define CLK_ASRC_4CH_1			62
#define MCLK_SAI0_8CH_SRC		63
#define MCLK_SAI0_8CH			64
#define HCLK_SAI0_8CH			65
#define HCLK_SPDIF_RX0			66
#define MCLK_SPDIF_RX0			67
#define HCLK_SPDIF_RX1			68
#define MCLK_SPDIF_RX1			69
#define MCLK_SAI1_8CH_SRC		70
#define MCLK_SAI1_8CH			71
#define HCLK_SAI1_8CH			72
#define MCLK_SAI2_2CH_SRC		73
#define MCLK_SAI2_2CH			74
#define HCLK_SAI2_2CH			75
#define MCLK_SAI3_2CH_SRC		76
#define MCLK_SAI3_2CH			77
#define HCLK_SAI3_2CH			78
#define MCLK_SAI4_2CH_SRC		79
#define MCLK_SAI4_2CH			80
#define HCLK_SAI4_2CH			81
#define HCLK_ACDCDIG_DSM		82
#define MCLK_ACDCDIG_DSM		83
#define CLK_PDM1			84
#define HCLK_PDM1			85
#define MCLK_PDM1			86
#define HCLK_SPDIF_TX0			87
#define MCLK_SPDIF_TX0			88
#define HCLK_SPDIF_TX1			89
#define MCLK_SPDIF_TX1			90
#define CLK_SAI1_MCLKOUT		91
#define CLK_SAI2_MCLKOUT		92
#define CLK_SAI3_MCLKOUT		93
#define CLK_SAI4_MCLKOUT		94
#define CLK_SAI0_MCLKOUT		95
#define HCLK_BUS_ROOT			96
#define PCLK_BUS_ROOT			97
#define ACLK_BUS_ROOT			98
#define HCLK_CAN0			99
#define CLK_CAN0			100
#define HCLK_CAN1			101
#define CLK_CAN1			102
#define CLK_KEY_SHIFT			103
#define PCLK_I2C1			104
#define PCLK_I2C2			105
#define PCLK_I2C3			106
#define PCLK_I2C4			107
#define PCLK_I2C5			108
#define PCLK_I2C6			109
#define PCLK_I2C7			110
#define PCLK_I2C8			111
#define PCLK_I2C9			112
#define PCLK_WDT_BUSMCU			113
#define TCLK_WDT_BUSMCU			114
#define ACLK_GIC			115
#define CLK_I2C1			116
#define CLK_I2C2			117
#define CLK_I2C3			118
#define CLK_I2C4			119
#define CLK_I2C5			120
#define CLK_I2C6			121
#define CLK_I2C7			122
#define CLK_I2C8			123
#define CLK_I2C9			124
#define PCLK_SARADC			125
#define CLK_SARADC			126
#define PCLK_TSADC			127
#define CLK_TSADC			128
#define PCLK_UART0			129
#define PCLK_UART2			130
#define PCLK_UART3			131
#define PCLK_UART4			132
#define PCLK_UART5			133
#define PCLK_UART6			134
#define PCLK_UART7			135
#define PCLK_UART8			136
#define PCLK_UART9			137
#define PCLK_UART10			138
#define PCLK_UART11			139
#define SCLK_UART0			140
#define SCLK_UART2			141
#define SCLK_UART3			142
#define SCLK_UART4			143
#define SCLK_UART5			144
#define SCLK_UART6			145
#define SCLK_UART7			146
#define SCLK_UART8			147
#define SCLK_UART9			148
#define SCLK_UART10			149
#define SCLK_UART11			150
#define PCLK_SPI0			151
#define PCLK_SPI1			152
#define PCLK_SPI2			153
#define PCLK_SPI3			154
#define PCLK_SPI4			155
#define CLK_SPI0			156
#define CLK_SPI1			157
#define CLK_SPI2			158
#define CLK_SPI3			159
#define CLK_SPI4			160
#define PCLK_WDT0			161
#define TCLK_WDT0			162
#define PCLK_PWM1			163
#define CLK_PWM1			164
#define CLK_OSC_PWM1			165
#define CLK_RC_PWM1			166
#define PCLK_BUSTIMER0			167
#define PCLK_BUSTIMER1			168
#define CLK_TIMER0_ROOT			169
#define CLK_TIMER0			170
#define CLK_TIMER1			171
#define CLK_TIMER2			172
#define CLK_TIMER3			173
#define CLK_TIMER4			174
#define CLK_TIMER5			175
#define PCLK_MAILBOX0			176
#define PCLK_GPIO1			177
#define DBCLK_GPIO1			178
#define PCLK_GPIO2			179
#define DBCLK_GPIO2			180
#define PCLK_GPIO3			181
#define DBCLK_GPIO3			182
#define PCLK_GPIO4			183
#define DBCLK_GPIO4			184
#define ACLK_DECOM			185
#define PCLK_DECOM			186
#define DCLK_DECOM			187
#define CLK_TIMER1_ROOT			188
#define CLK_TIMER6			189
#define CLK_TIMER7			190
#define CLK_TIMER8			191
#define CLK_TIMER9			192
#define CLK_TIMER10			193
#define CLK_TIMER11			194
#define ACLK_DMAC0			195
#define ACLK_DMAC1			196
#define ACLK_DMAC2			197
#define ACLK_SPINLOCK			198
#define HCLK_I3C0			199
#define HCLK_I3C1			200
#define HCLK_BUS_CM0_ROOT		201
#define FCLK_BUS_CM0_CORE		202
#define CLK_BUS_CM0_RTC			203
#define PCLK_PMU2			204
#define PCLK_PWM2			205
#define CLK_PWM2			206
#define CLK_RC_PWM2			207
#define CLK_OSC_PWM2			208
#define CLK_FREQ_PWM1			209
#define CLK_COUNTER_PWM1		210
#define SAI_SCLKIN_FREQ			211
#define SAI_SCLKIN_COUNTER		212
#define CLK_I3C0			213
#define CLK_I3C1			214
#define PCLK_CSIDPHY1			215
#define PCLK_DDR_ROOT			216
#define PCLK_DDR_MON_CH0		217
#define TMCLK_DDR_MON_CH0		218
#define ACLK_DDR_ROOT			219
#define HCLK_DDR_ROOT			220
#define FCLK_DDR_CM0_CORE		221
#define CLK_DDR_TIMER_ROOT		222
#define CLK_DDR_TIMER0			223
#define CLK_DDR_TIMER1			224
#define TCLK_WDT_DDR			225
#define PCLK_WDT			226
#define PCLK_TIMER			227
#define CLK_DDR_CM0_RTC			228
#define ACLK_RKNN0			229
#define ACLK_RKNN1			230
#define HCLK_RKNN_ROOT			231
#define CLK_RKNN_DSU0			232
#define PCLK_NPUTOP_ROOT		233
#define PCLK_NPU_TIMER			234
#define CLK_NPUTIMER_ROOT		235
#define CLK_NPUTIMER0			236
#define CLK_NPUTIMER1			237
#define PCLK_NPU_WDT			238
#define TCLK_NPU_WDT			239
#define ACLK_RKNN_CBUF			240
#define HCLK_NPU_CM0_ROOT		241
#define FCLK_NPU_CM0_CORE		242
#define CLK_NPU_CM0_RTC			243
#define HCLK_RKNN_CBUF			244
#define HCLK_NVM_ROOT			245
#define ACLK_NVM_ROOT			246
#define SCLK_FSPI_X2			247
#define HCLK_FSPI			248
#define CCLK_SRC_EMMC			249
#define HCLK_EMMC			250
#define ACLK_EMMC			251
#define BCLK_EMMC			252
#define TCLK_EMMC			253
#define PCLK_PHP_ROOT			254
#define ACLK_PHP_ROOT			255
#define PCLK_PCIE0			256
#define CLK_PCIE0_AUX			257
#define ACLK_PCIE0_MST			258
#define ACLK_PCIE0_SLV			259
#define ACLK_PCIE0_DBI			260
#define ACLK_USB3OTG1			261
#define CLK_REF_USB3OTG1		262
#define CLK_SUSPEND_USB3OTG1		263
#define ACLK_MMU0			264
#define ACLK_SLV_MMU0			265
#define ACLK_MMU1			266
#define ACLK_SLV_MMU1			267
#define PCLK_PCIE1			268
#define CLK_PCIE1_AUX			269
#define ACLK_PCIE1_MST			270
#define ACLK_PCIE1_SLV			271
#define ACLK_PCIE1_DBI			272
#define CLK_RXOOB0			273
#define CLK_RXOOB1			274
#define CLK_PMALIVE0			275
#define CLK_PMALIVE1			276
#define ACLK_SATA0			277
#define ACLK_SATA1			278
#define CLK_USB3OTG1_PIPE_PCLK		279
#define CLK_USB3OTG1_UTMI		280
#define CLK_USB3OTG0_PIPE_PCLK		281
#define CLK_USB3OTG0_UTMI		282
#define HCLK_SDGMAC_ROOT		283
#define ACLK_SDGMAC_ROOT		284
#define PCLK_SDGMAC_ROOT		285
#define ACLK_GMAC0			286
#define ACLK_GMAC1			287
#define PCLK_GMAC0			288
#define PCLK_GMAC1			289
#define CCLK_SRC_SDIO			290
#define HCLK_SDIO			291
#define CLK_GMAC1_PTP_REF		292
#define CLK_GMAC0_PTP_REF		293
#define CLK_GMAC1_PTP_REF_SRC		294
#define CLK_GMAC0_PTP_REF_SRC		295
#define CCLK_SRC_SDMMC0			296
#define HCLK_SDMMC0			297
#define SCLK_FSPI1_X2			298
#define HCLK_FSPI1			299
#define ACLK_DSMC_ROOT			300
#define ACLK_DSMC			301
#define PCLK_DSMC			302
#define CLK_DSMC_SYS			303
#define HCLK_HSGPIO			304
#define CLK_HSGPIO_TX			305
#define CLK_HSGPIO_RX			306
#define ACLK_HSGPIO			307
#define PCLK_PHPPHY_ROOT		308
#define PCLK_PCIE2_COMBOPHY0		309
#define PCLK_PCIE2_COMBOPHY1		310
#define CLK_PCIE_100M_SRC		311
#define CLK_PCIE_100M_NDUTY_SRC		312
#define CLK_REF_PCIE0_PHY		313
#define CLK_REF_PCIE1_PHY		314
#define CLK_REF_MPHY_26M		315
#define HCLK_RKVDEC_ROOT		316
#define ACLK_RKVDEC_ROOT		317
#define HCLK_RKVDEC			318
#define CLK_RKVDEC_HEVC_CA		319
#define CLK_RKVDEC_CORE			320
#define ACLK_UFS_ROOT			321
#define ACLK_USB_ROOT			322
#define PCLK_USB_ROOT			323
#define ACLK_USB3OTG0			324
#define CLK_REF_USB3OTG0		325
#define CLK_SUSPEND_USB3OTG0		326
#define ACLK_MMU2			327
#define ACLK_SLV_MMU2			328
#define ACLK_UFS_SYS			329
#define ACLK_VPU_ROOT			330
#define ACLK_VPU_MID_ROOT		331
#define HCLK_VPU_ROOT			332
#define ACLK_JPEG_ROOT			333
#define ACLK_VPU_LOW_ROOT		334
#define HCLK_RGA2E_0			335
#define ACLK_RGA2E_0			336
#define CLK_CORE_RGA2E_0		337
#define ACLK_JPEG			338
#define HCLK_JPEG			339
#define HCLK_VDPP			340
#define ACLK_VDPP			341
#define CLK_CORE_VDPP			342
#define HCLK_RGA2E_1			343
#define ACLK_RGA2E_1			344
#define CLK_CORE_RGA2E_1		345
#define DCLK_EBC_FRAC_SRC		346
#define HCLK_EBC			347
#define ACLK_EBC			348
#define DCLK_EBC			349
#define HCLK_VEPU0_ROOT			350
#define ACLK_VEPU0_ROOT			351
#define HCLK_VEPU0			352
#define ACLK_VEPU0			353
#define CLK_VEPU0_CORE			354
#define ACLK_VI_ROOT			355
#define HCLK_VI_ROOT			356
#define PCLK_VI_ROOT			357
#define DCLK_VICAP			358
#define ACLK_VICAP			359
#define HCLK_VICAP			360
#define CLK_ISP_CORE			361
#define CLK_ISP_CORE_MARVIN		362
#define CLK_ISP_CORE_VICAP		363
#define ACLK_ISP			364
#define HCLK_ISP			365
#define ACLK_VPSS			366
#define HCLK_VPSS			367
#define CLK_CORE_VPSS			368
#define PCLK_CSI_HOST_0			369
#define PCLK_CSI_HOST_1			370
#define PCLK_CSI_HOST_2			371
#define PCLK_CSI_HOST_3			372
#define PCLK_CSI_HOST_4			373
#define ICLK_CSIHOST01			374
#define ICLK_CSIHOST0			375
#define CLK_ISP_PVTPLL_SRC		376
#define ACLK_VI_ROOT_INTER		377
#define CLK_VICAP_I0CLK			378
#define CLK_VICAP_I1CLK			379
#define CLK_VICAP_I2CLK			380
#define CLK_VICAP_I3CLK			381
#define CLK_VICAP_I4CLK			382
#define ACLK_VOP_ROOT			383
#define HCLK_VOP_ROOT			384
#define PCLK_VOP_ROOT			385
#define HCLK_VOP			386
#define ACLK_VOP			387
#define DCLK_VP0_SRC			388
#define DCLK_VP1_SRC			389
#define DCLK_VP2_SRC			390
#define DCLK_VP0			391
#define DCLK_VP1			392
#define DCLK_VP2			393
#define PCLK_VOPGRF			394
#define ACLK_VO0_ROOT			395
#define HCLK_VO0_ROOT			396
#define PCLK_VO0_ROOT			397
#define PCLK_VO0_GRF			398
#define ACLK_HDCP0			399
#define HCLK_HDCP0			400
#define PCLK_HDCP0			401
#define CLK_TRNG0_SKP			402
#define PCLK_DSIHOST0			403
#define CLK_DSIHOST0			404
#define PCLK_HDMITX0			405
#define CLK_HDMITX0_EARC		406
#define CLK_HDMITX0_REF			407
#define PCLK_EDP0			408
#define CLK_EDP0_24M			409
#define CLK_EDP0_200M			410
#define MCLK_SAI5_8CH_SRC		411
#define MCLK_SAI5_8CH			412
#define HCLK_SAI5_8CH			413
#define MCLK_SAI6_8CH_SRC		414
#define MCLK_SAI6_8CH			415
#define HCLK_SAI6_8CH			416
#define HCLK_SPDIF_TX2			417
#define MCLK_SPDIF_TX2			418
#define HCLK_SPDIF_RX2			419
#define MCLK_SPDIF_RX2			420
#define HCLK_SAI8_8CH			421
#define MCLK_SAI8_8CH_SRC		422
#define MCLK_SAI8_8CH			423
#define ACLK_VO1_ROOT			424
#define HCLK_VO1_ROOT			425
#define PCLK_VO1_ROOT			426
#define MCLK_SAI7_8CH_SRC		427
#define MCLK_SAI7_8CH			428
#define HCLK_SAI7_8CH			429
#define HCLK_SPDIF_TX3			430
#define HCLK_SPDIF_TX4			431
#define HCLK_SPDIF_TX5			432
#define MCLK_SPDIF_TX3			433
#define CLK_AUX16MHZ_0			434
#define ACLK_DP0			435
#define PCLK_DP0			436
#define PCLK_VO1_GRF			437
#define ACLK_HDCP1			438
#define HCLK_HDCP1			439
#define PCLK_HDCP1			440
#define CLK_TRNG1_SKP			441
#define HCLK_SAI9_8CH			442
#define MCLK_SAI9_8CH_SRC		443
#define MCLK_SAI9_8CH			444
#define MCLK_SPDIF_TX4			445
#define MCLK_SPDIF_TX5			446
#define CLK_GPU_SRC_PRE			447
#define CLK_GPU				448
#define PCLK_GPU_ROOT			449
#define ACLK_CENTER_ROOT		450
#define ACLK_CENTER_LOW_ROOT		451
#define HCLK_CENTER_ROOT		452
#define PCLK_CENTER_ROOT		453
#define ACLK_DMA2DDR			454
#define ACLK_DDR_SHAREMEM		455
#define PCLK_DMA2DDR			456
#define PCLK_SHAREMEM			457
#define HCLK_VEPU1_ROOT			458
#define ACLK_VEPU1_ROOT			459
#define HCLK_VEPU1			460
#define ACLK_VEPU1			461
#define CLK_VEPU1_CORE			462
#define CLK_JDBCK_DAP			463
#define PCLK_MIPI_DCPHY			464
#define CLK_32K_USB2DEBUG		465
#define PCLK_CSIDPHY			466
#define PCLK_USBDPPHY			467
#define CLK_PMUPHY_REF_SRC		468
#define CLK_USBDP_COMBO_PHY_IMMORTAL	469
#define CLK_HDMITXHDP			470
#define PCLK_MPHY			471
#define CLK_REF_OSC_MPHY		472
#define CLK_REF_UFS_CLKOUT		473
#define HCLK_PMU1_ROOT			474
#define HCLK_PMU_CM0_ROOT		475
#define CLK_200M_PMU_SRC		476
#define CLK_100M_PMU_SRC		477
#define CLK_50M_PMU_SRC			478
#define FCLK_PMU_CM0_CORE		479
#define CLK_PMU_CM0_RTC			480
#define PCLK_PMU1			481
#define CLK_PMU1			482
#define PCLK_PMU1WDT			483
#define TCLK_PMU1WDT			484
#define PCLK_PMUTIMER			485
#define CLK_PMUTIMER_ROOT		486
#define CLK_PMUTIMER0			487
#define CLK_PMUTIMER1			488
#define PCLK_PMU1PWM			489
#define CLK_PMU1PWM			490
#define CLK_PMU1PWM_OSC			491
#define PCLK_PMUPHY_ROOT		492
#define PCLK_I2C0			493
#define CLK_I2C0			494
#define SCLK_UART1			495
#define PCLK_UART1			496
#define CLK_PMU1PWM_RC			497
#define CLK_PDM0			498
#define HCLK_PDM0			499
#define MCLK_PDM0			500
#define HCLK_VAD			501
#define CLK_OSCCHK_PVTM			502
#define CLK_PDM0_OUT			503
#define CLK_HPTIMER_SRC			504
#define PCLK_PMU0_ROOT			505
#define PCLK_PMU0			506
#define PCLK_GPIO0			507
#define DBCLK_GPIO0			508
#define CLK_OSC0_PMU1			509
#define PCLK_PMU1_ROOT			510
#define XIN_OSC0_DIV			511
#define ACLK_USB			512
#define ACLK_UFS			513
#define ACLK_SDGMAC			514
#define HCLK_SDGMAC			515
#define PCLK_SDGMAC			516
#define HCLK_VO1			517
#define HCLK_VO0			518
#define PCLK_CCI_ROOT			519
#define ACLK_CCI_ROOT			520
#define HCLK_VO0VOP_CHANNEL		521
#define ACLK_VO0VOP_CHANNEL		522
#define ACLK_TOP_MID			523
#define ACLK_SECURE_HIGH		524
#define CLK_USBPHY_REF_SRC		525
#define CLK_PHY_REF_SRC			526
#define CLK_CPLL_REF_SRC		527
#define CLK_AUPLL_REF_SRC		528
#define PCLK_SECURE_NS			529
#define HCLK_SECURE_NS			530
#define ACLK_SECURE_NS			531
#define PCLK_OTPC_NS			532
#define HCLK_CRYPTO_NS			533
#define HCLK_TRNG_NS			534
#define CLK_OTPC_NS			535
#define SCLK_DSU			536
#define SCLK_DDR			537
#define ACLK_CRYPTO_NS			538
#define CLK_PKA_CRYPTO_NS		539
#define ACLK_RKVDEC_ROOT_BAK		540
#define CLK_AUDIO_FRAC_0_SRC		541
#define CLK_AUDIO_FRAC_1_SRC		542
#define CLK_AUDIO_FRAC_2_SRC		543
#define CLK_AUDIO_FRAC_3_SRC		544
#define PCLK_HDPTX_APB			545

/* secure clk */
#define CLK_STIMER0_ROOT		546
#define CLK_STIMER1_ROOT		547
#define PCLK_SECURE_S			548
#define HCLK_SECURE_S			549
#define ACLK_SECURE_S			550
#define CLK_PKA_CRYPTO_S		551
#define HCLK_VO1_S			552
#define PCLK_VO1_S			553
#define HCLK_VO0_S			554
#define PCLK_VO0_S			555
#define PCLK_KLAD			556
#define HCLK_CRYPTO_S			557
#define HCLK_KLAD			558
#define ACLK_CRYPTO_S			559
#define HCLK_TRNG_S			560
#define PCLK_OTPC_S			561
#define CLK_OTPC_S			562
#define PCLK_WDT_S			563
#define TCLK_WDT_S			564
#define PCLK_HDCP0_TRNG			565
#define PCLK_HDCP1_TRNG			566
#define HCLK_HDCP_KEY0			567
#define HCLK_HDCP_KEY1			568
#define PCLK_EDP_S			569
#define ACLK_KLAD			570

#endif