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authorGeert Uytterhoeven <geert+renesas@glider.be>2023-03-08 11:42:41 +0100
committerGeert Uytterhoeven <geert+renesas@glider.be>2023-03-30 15:39:04 +0200
commit6cd853a45324e26d71d7848b7f0fe28b5c023375 (patch)
tree2b5f77f5bd4e868337341754a5b884104215295c /drivers/pinctrl
parentpinctrl: renesas: r8a77970: Add support for AVB power-source (diff)
downloadlinux-6cd853a45324e26d71d7848b7f0fe28b5c023375.tar.xz
linux-6cd853a45324e26d71d7848b7f0fe28b5c023375.zip
pinctrl: renesas: r8a77980: Add support for AVB/GE power-sources
Add support for configuring the I/O voltage levels of the Ethernet AVB and Gigabit Ethernet pins on the R-Car V3H SoC. "PIN_VDDQ_AVB" and "PIN_VDDQ_GE" 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/3c26c4f3735a6d071685c507c065172e63af5d70.1678271030.git.geert+renesas@glider.be
Diffstat (limited to 'drivers/pinctrl')
-rw-r--r--drivers/pinctrl/renesas/pfc-r8a77980.c39
1 files changed, 28 insertions, 11 deletions
diff --git a/drivers/pinctrl/renesas/pfc-r8a77980.c b/drivers/pinctrl/renesas/pfc-r8a77980.c
index b632ea1b29c7..8effbcec0b22 100644
--- a/drivers/pinctrl/renesas/pfc-r8a77980.c
+++ b/drivers/pinctrl/renesas/pfc-r8a77980.c
@@ -35,7 +35,9 @@
PIN_NOGP_CFG(EXTALR, "EXTALR", fn, SH_PFC_PIN_CFG_PULL_UP_DOWN), \
PIN_NOGP_CFG(FSCLKST, "FSCLKST", fn, SH_PFC_PIN_CFG_PULL_UP_DOWN), \
PIN_NOGP_CFG(FSCLKST_N, "FSCLKST#", fn, SH_PFC_PIN_CFG_PULL_UP_DOWN), \
- PIN_NOGP_CFG(PRESETOUT_N, "PRESETOUT#", fn, SH_PFC_PIN_CFG_PULL_UP_DOWN)
+ PIN_NOGP_CFG(PRESETOUT_N, "PRESETOUT#", fn, SH_PFC_PIN_CFG_PULL_UP_DOWN), \
+ PIN_NOGP_CFG(VDDQ_AVB, "VDDQ_AVB", fn, SH_PFC_PIN_CFG_IO_VOLTAGE_25_33), \
+ PIN_NOGP_CFG(VDDQ_GE, "VDDQ_GE", fn, SH_PFC_PIN_CFG_IO_VOLTAGE_25_33)
/*
* F_() : just information
@@ -2837,24 +2839,39 @@ static int r8a77980_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;
- else 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(2, 17) && pin <= RCAR_GP_PIN(2, 24)) ||
- (pin >= RCAR_GP_PIN(3, 0) && pin <= RCAR_GP_PIN(3, 16)))
+
+ case RCAR_GP_PIN(2, 17) ... RCAR_GP_PIN(2, 24):
+ case RCAR_GP_PIN(3, 0) ... RCAR_GP_PIN(3, 16):
+ *pocctrl = pinmux_ioctrl_regs[POCCTRL1].reg;
return bit + 7;
- *pocctrl = pinmux_ioctrl_regs[POCCTRL2].reg;
- if (pin >= RCAR_GP_PIN(2, 25) && pin <= RCAR_GP_PIN(2, 29))
+ case RCAR_GP_PIN(2, 25) ... RCAR_GP_PIN(2, 29):
+ *pocctrl = pinmux_ioctrl_regs[POCCTRL2].reg;
return pin - 25;
- return -EINVAL;
+ case PIN_VDDQ_AVB:
+ *pocctrl = pinmux_ioctrl_regs[POCCTRL3].reg;
+ return 0;
+
+ case PIN_VDDQ_GE:
+ *pocctrl = pinmux_ioctrl_regs[POCCTRL3].reg;
+ return 1;
+
+ default:
+ return -EINVAL;
+ }
}
static const struct pinmux_bias_reg pinmux_bias_regs[] = {