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| author | Geert Uytterhoeven <geert+renesas@glider.be> | 2023-03-08 11:42:40 +0100 |
|---|---|---|
| committer | Geert Uytterhoeven <geert+renesas@glider.be> | 2023-03-30 15:39:04 +0200 |
| commit | a7bebdc5905ed23a3d33ec194a800b04b4161d3c (patch) | |
| tree | 82731241cd7c6d604545093b469ad73ebbe51712 /drivers/pinctrl | |
| parent | b88e733ac5170efe5f26c62606ff97901dad9248 (diff) | |
| download | linux-next-a7bebdc5905ed23a3d33ec194a800b04b4161d3c.tar.gz | |
pinctrl: renesas: r8a77970: Add support for AVB power-source
Add support for configuring the I/O voltage level of the Ethernet AVB
pins on the R-Car V3M SoC. "PIN_VDDQ_AVB0" can be configured for 2.5V
or 3.3V operation.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/eb4db82bdeb67507a1a77f63b9d90280d6f38ba4.1678271030.git.geert+renesas@glider.be
Diffstat (limited to 'drivers/pinctrl')
| -rw-r--r-- | drivers/pinctrl/renesas/pfc-r8a77970.c | 28 |
1 files changed, 20 insertions, 8 deletions
diff --git a/drivers/pinctrl/renesas/pfc-r8a77970.c b/drivers/pinctrl/renesas/pfc-r8a77970.c index 578c1d6fc2e0..54da0c025458 100644 --- a/drivers/pinctrl/renesas/pfc-r8a77970.c +++ b/drivers/pinctrl/renesas/pfc-r8a77970.c @@ -34,7 +34,8 @@ PIN_NOGP_CFG(TCK, "TCK", fn, SH_PFC_PIN_CFG_PULL_UP), \ PIN_NOGP_CFG(TDI, "TDI", fn, SH_PFC_PIN_CFG_PULL_UP), \ PIN_NOGP_CFG(TMS, "TMS", fn, SH_PFC_PIN_CFG_PULL_UP), \ - PIN_NOGP_CFG(TRST_N, "TRST#", fn, SH_PFC_PIN_CFG_PULL_UP) + PIN_NOGP_CFG(TRST_N, "TRST#", fn, SH_PFC_PIN_CFG_PULL_UP), \ + PIN_NOGP_CFG(VDDQ_AVB0, "VDDQ_AVB0", fn, SH_PFC_PIN_CFG_IO_VOLTAGE_25_33) /* * F_() : just information @@ -2364,19 +2365,30 @@ static int r8a77970_pin_to_pocctrl(unsigned int pin, u32 *pocctrl) { int bit = pin & 0x1f; - *pocctrl = pinmux_ioctrl_regs[POCCTRL0].reg; - if (pin >= RCAR_GP_PIN(0, 0) && pin <= RCAR_GP_PIN(0, 21)) + switch (pin) { + case RCAR_GP_PIN(0, 0) ... RCAR_GP_PIN(0, 21): + *pocctrl = pinmux_ioctrl_regs[POCCTRL0].reg; return bit; - if (pin >= RCAR_GP_PIN(2, 0) && pin <= RCAR_GP_PIN(2, 9)) + + case RCAR_GP_PIN(2, 0) ... RCAR_GP_PIN(2, 9): + *pocctrl = pinmux_ioctrl_regs[POCCTRL0].reg; return bit + 22; - *pocctrl = pinmux_ioctrl_regs[POCCTRL1].reg; - if (pin >= RCAR_GP_PIN(2, 10) && pin <= RCAR_GP_PIN(2, 16)) + case RCAR_GP_PIN(2, 10) ... RCAR_GP_PIN(2, 16): + *pocctrl = pinmux_ioctrl_regs[POCCTRL1].reg; return bit - 10; - if (pin >= RCAR_GP_PIN(3, 0) && pin <= RCAR_GP_PIN(3, 16)) + + case RCAR_GP_PIN(3, 0) ... RCAR_GP_PIN(3, 16): + *pocctrl = pinmux_ioctrl_regs[POCCTRL1].reg; return bit + 7; - return -EINVAL; + case PIN_VDDQ_AVB0: + *pocctrl = pinmux_ioctrl_regs[POCCTRL2].reg; + return 0; + + default: + return -EINVAL; + } } static const struct pinmux_bias_reg pinmux_bias_regs[] = { |