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| author | Geert Uytterhoeven <geert+renesas@glider.be> | 2023-03-08 13:42:43 +0300 |
|---|---|---|
| committer | Geert Uytterhoeven <geert+renesas@glider.be> | 2023-03-30 16:39:05 +0300 |
| commit | d04b961dd44d02c47ca7b716b493478d4a3f3967 (patch) | |
| tree | aef606055226608dccaefb98b52c8f7e1b9e84a2 /drivers/pinctrl | |
| parent | 7f25d5b04af2ec0b85a18071ab59f9a6e456dfe0 (diff) | |
| download | linux-d04b961dd44d02c47ca7b716b493478d4a3f3967.tar.xz | |
pinctrl: renesas: r8a77995: Add support for AVB power-source
Add support for configuring the I/O voltage level of the Ethernet AVB
pins on the R-Car D3 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/8f9164487715d8a4898ca651038c0b4d5013764c.1678271030.git.geert+renesas@glider.be
Diffstat (limited to 'drivers/pinctrl')
| -rw-r--r-- | drivers/pinctrl/renesas/pfc-r8a77995.c | 21 |
1 files changed, 14 insertions, 7 deletions
diff --git a/drivers/pinctrl/renesas/pfc-r8a77995.c b/drivers/pinctrl/renesas/pfc-r8a77995.c index 5a42213c680c..29664d97e5ec 100644 --- a/drivers/pinctrl/renesas/pfc-r8a77995.c +++ b/drivers/pinctrl/renesas/pfc-r8a77995.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 @@ -2857,11 +2858,13 @@ static const struct pinmux_cfg_reg pinmux_config_regs[] = { enum ioctrl_regs { POCCTRL0, + POCCTRL2, TDSELCTRL, }; static const struct pinmux_ioctrl_reg pinmux_ioctrl_regs[] = { [POCCTRL0] = { 0xe6060380, }, + [POCCTRL2] = { 0xe6060388, }, [TDSELCTRL] = { 0xe60603c0, }, { /* sentinel */ }, }; @@ -2869,14 +2872,18 @@ static const struct pinmux_ioctrl_reg pinmux_ioctrl_regs[] = { static int r8a77995_pin_to_pocctrl(unsigned int pin, u32 *pocctrl) { - int bit = -EINVAL; - - *pocctrl = pinmux_ioctrl_regs[POCCTRL0].reg; + switch (pin) { + case RCAR_GP_PIN(3, 0) ... RCAR_GP_PIN(3, 9): + *pocctrl = pinmux_ioctrl_regs[POCCTRL0].reg; + return 29 - (pin - RCAR_GP_PIN(3, 0)); - if (pin >= RCAR_GP_PIN(3, 0) && pin <= RCAR_GP_PIN(3, 9)) - bit = 29 - (pin - RCAR_GP_PIN(3, 0)); + case PIN_VDDQ_AVB0: + *pocctrl = pinmux_ioctrl_regs[POCCTRL2].reg; + return 0; - return bit; + default: + return -EINVAL; + } } static const struct pinmux_bias_reg pinmux_bias_regs[] = { |