Some VIN channels support less than 24 lanes. As union vin_data always consumes space for 24 lanes, this wastes memory.
Hence introduce new smaller unions vin_data12 and vin_data16, to accommodate VIN channels with only 12 or 16 lanes. This reduces the static pin controller driver size by 320 bytes for R-Car V2H, and by 96 bytes for R-Car E2. Signed-off-by: Geert Uytterhoeven <[email protected]> --- To be queued in sh-pfc-for-v4.21. drivers/pinctrl/sh-pfc/pfc-r8a7792.c | 16 ++++++++-------- drivers/pinctrl/sh-pfc/pfc-r8a7794.c | 4 ++-- drivers/pinctrl/sh-pfc/sh_pfc.h | 17 +++++++++++++++-- 3 files changed, 25 insertions(+), 12 deletions(-) diff --git a/drivers/pinctrl/sh-pfc/pfc-r8a7792.c b/drivers/pinctrl/sh-pfc/pfc-r8a7792.c index bf0681b381819a4b..e977121b433b773c 100644 --- a/drivers/pinctrl/sh-pfc/pfc-r8a7792.c +++ b/drivers/pinctrl/sh-pfc/pfc-r8a7792.c @@ -1474,7 +1474,7 @@ static const unsigned int vin1_clk_mux[] = { VI1_CLK_MARK, }; /* - VIN2 ------------------------------------------------------------------- */ -static const union vin_data vin2_data_pins = { +static const union vin_data16 vin2_data_pins = { .data16 = { RCAR_GP_PIN(6, 4), RCAR_GP_PIN(6, 5), RCAR_GP_PIN(6, 6), RCAR_GP_PIN(6, 7), @@ -1486,7 +1486,7 @@ static const union vin_data vin2_data_pins = { RCAR_GP_PIN(8, 11), RCAR_GP_PIN(8, 12), }, }; -static const union vin_data vin2_data_mux = { +static const union vin_data16 vin2_data_mux = { .data16 = { VI2_D0_C0_MARK, VI2_D1_C1_MARK, VI2_D2_C2_MARK, VI2_D3_C3_MARK, @@ -1524,7 +1524,7 @@ static const unsigned int vin2_clk_mux[] = { VI2_CLK_MARK, }; /* - VIN3 ------------------------------------------------------------------- */ -static const union vin_data vin3_data_pins = { +static const union vin_data16 vin3_data_pins = { .data16 = { RCAR_GP_PIN(7, 4), RCAR_GP_PIN(7, 5), RCAR_GP_PIN(7, 6), RCAR_GP_PIN(7, 7), @@ -1536,7 +1536,7 @@ static const union vin_data vin3_data_pins = { RCAR_GP_PIN(8, 15), RCAR_GP_PIN(8, 16), }, }; -static const union vin_data vin3_data_mux = { +static const union vin_data16 vin3_data_mux = { .data16 = { VI3_D0_C0_MARK, VI3_D1_C1_MARK, VI3_D2_C2_MARK, VI3_D3_C3_MARK, @@ -1574,7 +1574,7 @@ static const unsigned int vin3_clk_mux[] = { VI3_CLK_MARK, }; /* - VIN4 ------------------------------------------------------------------- */ -static const union vin_data vin4_data_pins = { +static const union vin_data12 vin4_data_pins = { .data12 = { RCAR_GP_PIN(8, 4), RCAR_GP_PIN(8, 5), RCAR_GP_PIN(8, 6), RCAR_GP_PIN(8, 7), @@ -1584,7 +1584,7 @@ static const union vin_data vin4_data_pins = { RCAR_GP_PIN(8, 14), RCAR_GP_PIN(8, 15), }, }; -static const union vin_data vin4_data_mux = { +static const union vin_data12 vin4_data_mux = { .data12 = { VI4_D0_C0_MARK, VI4_D1_C1_MARK, VI4_D2_C2_MARK, VI4_D3_C3_MARK, @@ -1620,7 +1620,7 @@ static const unsigned int vin4_clk_mux[] = { VI4_CLK_MARK, }; /* - VIN5 ------------------------------------------------------------------- */ -static const union vin_data vin5_data_pins = { +static const union vin_data12 vin5_data_pins = { .data12 = { RCAR_GP_PIN(9, 4), RCAR_GP_PIN(9, 5), RCAR_GP_PIN(9, 6), RCAR_GP_PIN(9, 7), @@ -1630,7 +1630,7 @@ static const union vin_data vin5_data_pins = { RCAR_GP_PIN(9, 14), RCAR_GP_PIN(9, 15), }, }; -static const union vin_data vin5_data_mux = { +static const union vin_data12 vin5_data_mux = { .data12 = { VI5_D0_C0_MARK, VI5_D1_C1_MARK, VI5_D2_C2_MARK, VI5_D3_C3_MARK, diff --git a/drivers/pinctrl/sh-pfc/pfc-r8a7794.c b/drivers/pinctrl/sh-pfc/pfc-r8a7794.c index 6d1e5fdc03f84554..b96a3cc79084ddcc 100644 --- a/drivers/pinctrl/sh-pfc/pfc-r8a7794.c +++ b/drivers/pinctrl/sh-pfc/pfc-r8a7794.c @@ -3704,7 +3704,7 @@ static const unsigned int vin0_clk_mux[] = { VI0_CLK_MARK, }; /* - VIN1 ------------------------------------------------------------------- */ -static const union vin_data vin1_data_pins = { +static const union vin_data12 vin1_data_pins = { .data12 = { RCAR_GP_PIN(5, 12), RCAR_GP_PIN(5, 13), RCAR_GP_PIN(5, 14), RCAR_GP_PIN(5, 15), @@ -3714,7 +3714,7 @@ static const union vin_data vin1_data_pins = { RCAR_GP_PIN(1, 12), RCAR_GP_PIN(1, 13), }, }; -static const union vin_data vin1_data_mux = { +static const union vin_data12 vin1_data_mux = { .data12 = { VI1_DATA0_MARK, VI1_DATA1_MARK, VI1_DATA2_MARK, VI1_DATA3_MARK, diff --git a/drivers/pinctrl/sh-pfc/sh_pfc.h b/drivers/pinctrl/sh-pfc/sh_pfc.h index 458ae0a6b5404631..1fc13366869abd4c 100644 --- a/drivers/pinctrl/sh-pfc/sh_pfc.h +++ b/drivers/pinctrl/sh-pfc/sh_pfc.h @@ -53,8 +53,8 @@ struct sh_pfc_pin_group { }; /* - * Using union vin_data saves memory occupied by the VIN data pins. - * VIN_DATA_PIN_GROUP() is a macro used to describe the VIN pin groups + * Using union vin_data{,12,16} saves memory occupied by the VIN data pins. + * VIN_DATA_PIN_GROUP() is a macro used to describe the VIN pin groups * in this case. */ #define VIN_DATA_PIN_GROUP(n, s) \ @@ -65,6 +65,19 @@ struct sh_pfc_pin_group { .nr_pins = ARRAY_SIZE(n##_pins.data##s), \ } +union vin_data12 { + unsigned int data12[12]; + unsigned int data10[10]; + unsigned int data8[8]; +}; + +union vin_data16 { + unsigned int data16[16]; + unsigned int data12[12]; + unsigned int data10[10]; + unsigned int data8[8]; +}; + union vin_data { unsigned int data24[24]; unsigned int data20[20]; -- 2.17.1
