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charset="utf-8" The assert logic of the MIPI CSI reset signals is active-low on i.MX8MQ, but the existing names do not indicate this explicitly. To improve consistency and clarity, append the _N suffix to all IMX8MQ_RESET_MIPI_CSI*_RESET definitions. The deprecated IMX8MQ_RESET_MIPI_CSI*_RESET versions remain temporarily for DT ABI compatibility and will be removed at an appropriate time in the future. Signed-off-by: Robby Cai --- include/dt-bindings/reset/imx8mq-reset.h | 18 ++++++++++++------ 1 file changed, 12 insertions(+), 6 deletions(-) diff --git a/include/dt-bindings/reset/imx8mq-reset.h b/include/dt-bindings= /reset/imx8mq-reset.h index 705870693ec2..83a155dbbd4a 100644 --- a/include/dt-bindings/reset/imx8mq-reset.h +++ b/include/dt-bindings/reset/imx8mq-reset.h @@ -46,12 +46,18 @@ #define IMX8MQ_RESET_PCIEPHY2_PERST 35 /* i.MX8MM/i.MX8MN does NOT suppor= t */ #define IMX8MQ_RESET_PCIE2_CTRL_APPS_EN 36 /* i.MX8MM/i.MX8MN does NOT su= pport */ #define IMX8MQ_RESET_PCIE2_CTRL_APPS_TURNOFF 37 /* i.MX8MM/i.MX8MN does NO= T support */ -#define IMX8MQ_RESET_MIPI_CSI1_CORE_RESET 38 /* i.MX8MM/i.MX8MN does NOT s= upport */ -#define IMX8MQ_RESET_MIPI_CSI1_PHY_REF_RESET 39 /* i.MX8MM/i.MX8MN does NO= T support */ -#define IMX8MQ_RESET_MIPI_CSI1_ESC_RESET 40 /* i.MX8MM/i.MX8MN does NOT su= pport */ -#define IMX8MQ_RESET_MIPI_CSI2_CORE_RESET 41 /* i.MX8MM/i.MX8MN does NOT s= upport */ -#define IMX8MQ_RESET_MIPI_CSI2_PHY_REF_RESET 42 /* i.MX8MM/i.MX8MN does NO= T support */ -#define IMX8MQ_RESET_MIPI_CSI2_ESC_RESET 43 /* i.MX8MM/i.MX8MN does NOT su= pport */ +#define IMX8MQ_RESET_MIPI_CSI1_CORE_RESET 38 /* Deprecated. Use *_RESET_N = instead */ +#define IMX8MQ_RESET_MIPI_CSI1_CORE_RESET_N 38 /* i.MX8MM/i.MX8MN does NOT= support */ +#define IMX8MQ_RESET_MIPI_CSI1_PHY_REF_RESET 39 /* Deprecated. Use *_RESET= _N instead */ +#define IMX8MQ_RESET_MIPI_CSI1_PHY_REF_RESET_N 39 /* i.MX8MM/i.MX8MN does = NOT support */ +#define IMX8MQ_RESET_MIPI_CSI1_ESC_RESET 40 /* Deprecated. Use *_RESET_N i= nstead */ +#define IMX8MQ_RESET_MIPI_CSI1_ESC_RESET_N 40 /* i.MX8MM/i.MX8MN does NOT = support */ +#define IMX8MQ_RESET_MIPI_CSI2_CORE_RESET 41 /* Deprecated. Use *_RESET_N = instead */ +#define IMX8MQ_RESET_MIPI_CSI2_CORE_RESET_N 41 /* i.MX8MM/i.MX8MN does NOT= support */ +#define IMX8MQ_RESET_MIPI_CSI2_PHY_REF_RESET 42 /* Deprecated. Use *_RESET= _N instead */ +#define IMX8MQ_RESET_MIPI_CSI2_PHY_REF_RESET_N 42 /* i.MX8MM/i.MX8MN does = NOT support */ +#define IMX8MQ_RESET_MIPI_CSI2_ESC_RESET 43 /* Deprecated. 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charset="utf-8" The MIPI CSI reset signals on i.MX8MQ are active-low, but the reset controller driver previously treated them as active-high, resulting in incorrect assert/deassert behavior. Update the reset handling logic to correctly process these active-low reset lines. Signed-off-by: Robby Cai --- drivers/reset/reset-imx7.c | 18 ++++++++++++------ 1 file changed, 12 insertions(+), 6 deletions(-) diff --git a/drivers/reset/reset-imx7.c b/drivers/reset/reset-imx7.c index dd01fe11c5cb..b7048e1f10df 100644 --- a/drivers/reset/reset-imx7.c +++ b/drivers/reset/reset-imx7.c @@ -202,12 +202,12 @@ static const struct imx7_src_signal imx8mq_src_signal= s[IMX8MQ_RESET_NUM] =3D { [IMX8MQ_RESET_PCIEPHY2_PERST] =3D { SRC_PCIE2_RCR, BIT(3) }, [IMX8MQ_RESET_PCIE2_CTRL_APPS_EN] =3D { SRC_PCIE2_RCR, BIT(6) }, [IMX8MQ_RESET_PCIE2_CTRL_APPS_TURNOFF] =3D { SRC_PCIE2_RCR, BIT(11) }, - [IMX8MQ_RESET_MIPI_CSI1_CORE_RESET] =3D { SRC_MIPIPHY1_RCR, BIT(0) }, - [IMX8MQ_RESET_MIPI_CSI1_PHY_REF_RESET] =3D { SRC_MIPIPHY1_RCR, BIT(1) }, - [IMX8MQ_RESET_MIPI_CSI1_ESC_RESET] =3D { SRC_MIPIPHY1_RCR, BIT(2) }, - [IMX8MQ_RESET_MIPI_CSI2_CORE_RESET] =3D { SRC_MIPIPHY2_RCR, BIT(0) }, - [IMX8MQ_RESET_MIPI_CSI2_PHY_REF_RESET] =3D { SRC_MIPIPHY2_RCR, BIT(1) }, - [IMX8MQ_RESET_MIPI_CSI2_ESC_RESET] =3D { SRC_MIPIPHY2_RCR, BIT(2) }, + [IMX8MQ_RESET_MIPI_CSI1_CORE_RESET_N] =3D { SRC_MIPIPHY1_RCR, BIT(0) }, + [IMX8MQ_RESET_MIPI_CSI1_PHY_REF_RESET_N] =3D { SRC_MIPIPHY1_RCR, BIT(1) }, + [IMX8MQ_RESET_MIPI_CSI1_ESC_RESET_N] =3D { SRC_MIPIPHY1_RCR, BIT(2) }, + [IMX8MQ_RESET_MIPI_CSI2_CORE_RESET_N] =3D { SRC_MIPIPHY2_RCR, BIT(0) }, + [IMX8MQ_RESET_MIPI_CSI2_PHY_REF_RESET_N] =3D { SRC_MIPIPHY2_RCR, BIT(1) }, + [IMX8MQ_RESET_MIPI_CSI2_ESC_RESET_N] =3D { SRC_MIPIPHY2_RCR, BIT(2) }, [IMX8MQ_RESET_DDRC1_PRST] =3D { SRC_DDRC_RCR, BIT(0) }, [IMX8MQ_RESET_DDRC1_CORE_RESET] =3D { SRC_DDRC_RCR, BIT(1) }, [IMX8MQ_RESET_DDRC1_PHY_RESET] =3D { SRC_DDRC_RCR, BIT(2) }, @@ -236,6 +236,12 @@ static int imx8mq_reset_set(struct reset_controller_de= v *rcdev, =20 case IMX8MQ_RESET_PCIE_CTRL_APPS_EN: case IMX8MQ_RESET_PCIE2_CTRL_APPS_EN: + case IMX8MQ_RESET_MIPI_CSI1_CORE_RESET_N: + case IMX8MQ_RESET_MIPI_CSI1_PHY_REF_RESET_N: + case IMX8MQ_RESET_MIPI_CSI1_ESC_RESET_N: + case IMX8MQ_RESET_MIPI_CSI2_CORE_RESET_N: + case IMX8MQ_RESET_MIPI_CSI2_PHY_REF_RESET_N: + case IMX8MQ_RESET_MIPI_CSI2_ESC_RESET_N: case IMX8MQ_RESET_MIPI_DSI_PCLK_RESET_N: case IMX8MQ_RESET_MIPI_DSI_ESC_RESET_N: case IMX8MQ_RESET_MIPI_DSI_DPI_RESET_N: --=20 2.37.1