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pinctrl: renesas: rzg2l: Add PFC_OEN support for RZ/G3E SoC

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Add support for configuring the PFC_OEN register on the RZ/G3E SoC to
enable output-enable control for specific pins. On this SoC, certain
pins such as TXC_TXCLK need to support switching between input and
output modes depending on the PHY interface mode (e.g., MII vs RGMII).
This functionality maps to the 'output-enable' property in the device
tree and requires explicit control via the PFC_OEN register.

This change updates the r9a09g047_variable_pin_cfg array to mark PB1, PE1,
PL0, PL1, PL2, and PL4 with the PIN_CFG_OEN flag to indicate output-enable
support. A new helper, rzg3e_pin_to_oen_bit(), is introduced to map these
pin names to their respective OEN bit positions, and the corresponding
callbacks are wired into the RZ/G3E SoC configuration using the generic
rzg2l_read_oen() and rzg2l_write_oen() accessors. Additionally, the GPIO
configuration for the PB, PE, and PL ports is updated to use the variable
port pack macro, enabling per-pin configuration necessary for OEN handling.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/20250806195555.1372317-7-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
This commit is contained in:
Lad Prabhakar 2025-08-06 20:55:54 +01:00 committed by Geert Uytterhoeven
parent cd39805be8
commit 54ac76e13a
1 changed files with 52 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

61
drivers/pinctrl/renesas/pinctrl-rzg2l.c
View File

@ -397,6 +397,14 @@ static const u64 r9a09g047_variable_pin_cfg[] = {
RZG2L_VARIABLE_PIN_CFG_PACK(RZG3E_PA, 5, RZV2H_MPXED_PIN_FUNCS),
RZG2L_VARIABLE_PIN_CFG_PACK(RZG3E_PA, 6, RZV2H_MPXED_PIN_FUNCS),
RZG2L_VARIABLE_PIN_CFG_PACK(RZG3E_PA, 7, RZV2H_MPXED_PIN_FUNCS),
RZG2L_VARIABLE_PIN_CFG_PACK(RZG3E_PB, 0, RZV2H_MPXED_PIN_FUNCS),
RZG2L_VARIABLE_PIN_CFG_PACK(RZG3E_PB, 1, RZV2H_MPXED_PIN_FUNCS | PIN_CFG_OEN),
RZG2L_VARIABLE_PIN_CFG_PACK(RZG3E_PB, 2, RZV2H_MPXED_PIN_FUNCS),
RZG2L_VARIABLE_PIN_CFG_PACK(RZG3E_PB, 3, RZV2H_MPXED_PIN_FUNCS),
RZG2L_VARIABLE_PIN_CFG_PACK(RZG3E_PB, 4, RZV2H_MPXED_PIN_FUNCS),
RZG2L_VARIABLE_PIN_CFG_PACK(RZG3E_PB, 5, RZV2H_MPXED_PIN_FUNCS),
RZG2L_VARIABLE_PIN_CFG_PACK(RZG3E_PB, 6, RZV2H_MPXED_PIN_FUNCS),
RZG2L_VARIABLE_PIN_CFG_PACK(RZG3E_PB, 7, RZV2H_MPXED_PIN_FUNCS),
RZG2L_VARIABLE_PIN_CFG_PACK(RZG3E_PD, 0, RZV2H_MPXED_PIN_FUNCS | PIN_CFG_IEN),
RZG2L_VARIABLE_PIN_CFG_PACK(RZG3E_PD, 1, RZV2H_MPXED_PIN_FUNCS),
RZG2L_VARIABLE_PIN_CFG_PACK(RZG3E_PD, 2, RZV2H_MPXED_PIN_FUNCS),
@ -405,6 +413,14 @@ static const u64 r9a09g047_variable_pin_cfg[] = {
RZG2L_VARIABLE_PIN_CFG_PACK(RZG3E_PD, 5, RZV2H_MPXED_PIN_FUNCS),
RZG2L_VARIABLE_PIN_CFG_PACK(RZG3E_PD, 6, RZV2H_MPXED_PIN_FUNCS),
RZG2L_VARIABLE_PIN_CFG_PACK(RZG3E_PD, 7, RZV2H_MPXED_PIN_FUNCS),
RZG2L_VARIABLE_PIN_CFG_PACK(RZG3E_PE, 0, RZV2H_MPXED_PIN_FUNCS),
RZG2L_VARIABLE_PIN_CFG_PACK(RZG3E_PE, 1, RZV2H_MPXED_PIN_FUNCS | PIN_CFG_OEN),
RZG2L_VARIABLE_PIN_CFG_PACK(RZG3E_PE, 2, RZV2H_MPXED_PIN_FUNCS),
RZG2L_VARIABLE_PIN_CFG_PACK(RZG3E_PE, 3, RZV2H_MPXED_PIN_FUNCS),
RZG2L_VARIABLE_PIN_CFG_PACK(RZG3E_PE, 4, RZV2H_MPXED_PIN_FUNCS),
RZG2L_VARIABLE_PIN_CFG_PACK(RZG3E_PE, 5, RZV2H_MPXED_PIN_FUNCS),
RZG2L_VARIABLE_PIN_CFG_PACK(RZG3E_PE, 6, RZV2H_MPXED_PIN_FUNCS),
RZG2L_VARIABLE_PIN_CFG_PACK(RZG3E_PE, 7, RZV2H_MPXED_PIN_FUNCS),
RZG2L_VARIABLE_PIN_CFG_PACK(RZG3E_PG, 0, RZV2H_MPXED_PIN_FUNCS),
RZG2L_VARIABLE_PIN_CFG_PACK(RZG3E_PG, 1, RZV2H_MPXED_PIN_FUNCS | PIN_CFG_IEN),
RZG2L_VARIABLE_PIN_CFG_PACK(RZG3E_PG, 2, RZV2H_MPXED_PIN_FUNCS | PIN_CFG_IEN),
@ -424,6 +440,14 @@ static const u64 r9a09g047_variable_pin_cfg[] = {
RZG2L_VARIABLE_PIN_CFG_PACK(RZG3E_PJ, 2, RZV2H_MPXED_PIN_FUNCS),
RZG2L_VARIABLE_PIN_CFG_PACK(RZG3E_PJ, 3, RZV2H_MPXED_PIN_FUNCS),
RZG2L_VARIABLE_PIN_CFG_PACK(RZG3E_PJ, 4, RZV2H_MPXED_PIN_FUNCS),
RZG2L_VARIABLE_PIN_CFG_PACK(RZG3E_PL, 0, RZV2H_MPXED_PIN_FUNCS | PIN_CFG_OEN),
RZG2L_VARIABLE_PIN_CFG_PACK(RZG3E_PL, 1, RZV2H_MPXED_PIN_FUNCS | PIN_CFG_OEN),
RZG2L_VARIABLE_PIN_CFG_PACK(RZG3E_PL, 2, RZV2H_MPXED_PIN_FUNCS | PIN_CFG_OEN),
RZG2L_VARIABLE_PIN_CFG_PACK(RZG3E_PL, 3, RZV2H_MPXED_PIN_FUNCS),
RZG2L_VARIABLE_PIN_CFG_PACK(RZG3E_PL, 4, RZV2H_MPXED_PIN_FUNCS | PIN_CFG_OEN),
RZG2L_VARIABLE_PIN_CFG_PACK(RZG3E_PL, 5, RZV2H_MPXED_PIN_FUNCS),
RZG2L_VARIABLE_PIN_CFG_PACK(RZG3E_PL, 6, RZV2H_MPXED_PIN_FUNCS),
RZG2L_VARIABLE_PIN_CFG_PACK(RZG3E_PL, 7, RZV2H_MPXED_PIN_FUNCS),
};
static const u64 r9a09g057_variable_pin_cfg[] = {
@ -1200,23 +1224,39 @@ static int rzv2h_bias_param_to_hw(enum pin_config_param param)
return -EINVAL;
}
static int rzv2h_pin_to_oen_bit(struct rzg2l_pinctrl *pctrl, unsigned int _pin)
static int rzg2l_pin_names_to_oen_bit(struct rzg2l_pinctrl *pctrl, unsigned int _pin,
const char * const pin_names[], unsigned int count)
{
static const char * const pin_names[] = { "ET0_TXC_TXCLK", "ET1_TXC_TXCLK",
"XSPI0_RESET0N", "XSPI0_CS0N",
"XSPI0_CKN", "XSPI0_CKP" };
const struct pinctrl_pin_desc *pin_desc = &pctrl->desc.pins[_pin];
unsigned int i;
for (i = 0; i < ARRAY_SIZE(pin_names); i++) {
for (i = 0; i < count; i++) {
if (!strcmp(pin_desc->name, pin_names[i]))
return i;
}
/* Should not happen. */
return -EINVAL;
}
static int rzv2h_pin_to_oen_bit(struct rzg2l_pinctrl *pctrl, unsigned int _pin)
{
static const char * const pin_names[] = {
"ET0_TXC_TXCLK", "ET1_TXC_TXCLK", "XSPI0_RESET0N",
"XSPI0_CS0N", "XSPI0_CKN", "XSPI0_CKP"
};
return rzg2l_pin_names_to_oen_bit(pctrl, _pin, pin_names, ARRAY_SIZE(pin_names));
}
static int rzg3e_pin_to_oen_bit(struct rzg2l_pinctrl *pctrl, unsigned int _pin)
{
static const char * const pin_names[] = {
"PB1", "PE1", "PL4", "PL1", "PL2", "PL0"
};
return rzg2l_pin_names_to_oen_bit(pctrl, _pin, pin_names, ARRAY_SIZE(pin_names));
}
static int rzg2l_pinctrl_pinconf_get(struct pinctrl_dev *pctldev,
unsigned int _pin,
unsigned long *config)
@ -2008,17 +2048,17 @@ static const u64 r9a09g047_gpio_configs[] = {
RZG2L_GPIO_PORT_PACK(6, 0x28, RZV2H_MPXED_PIN_FUNCS), /* P8 */
0x0,
RZG2L_GPIO_PORT_PACK_VARIABLE(8, 0x2a), /* PA */
RZG2L_GPIO_PORT_PACK(8, 0x2b, RZV2H_MPXED_PIN_FUNCS), /* PB */
RZG2L_GPIO_PORT_PACK_VARIABLE(8, 0x2b), /* PB */
RZG2L_GPIO_PORT_PACK(3, 0x2c, RZV2H_MPXED_PIN_FUNCS), /* PC */
RZG2L_GPIO_PORT_PACK_VARIABLE(8, 0x2d), /* PD */
RZG2L_GPIO_PORT_PACK(8, 0x2e, RZV2H_MPXED_PIN_FUNCS), /* PE */
RZG2L_GPIO_PORT_PACK_VARIABLE(8, 0x2e), /* PE */
RZG2L_GPIO_PORT_PACK(3, 0x2f, RZV2H_MPXED_PIN_FUNCS), /* PF */
RZG2L_GPIO_PORT_PACK_VARIABLE(8, 0x30), /* PG */
RZG2L_GPIO_PORT_PACK_VARIABLE(6, 0x31), /* PH */
0x0,
RZG2L_GPIO_PORT_PACK_VARIABLE(5, 0x33), /* PJ */
RZG2L_GPIO_PORT_PACK(4, 0x34, RZV2H_MPXED_PIN_FUNCS), /* PK */
RZG2L_GPIO_PORT_PACK(8, 0x35, RZV2H_MPXED_PIN_FUNCS), /* PL */
RZG2L_GPIO_PORT_PACK_VARIABLE(8, 0x35), /* PL */
RZG2L_GPIO_PORT_PACK(8, 0x36, RZV2H_MPXED_PIN_FUNCS), /* PM */
0x0,
0x0,
@ -3318,6 +3358,9 @@ static struct rzg2l_pinctrl_data r9a09g047_data = {
#endif
.pwpr_pfc_lock_unlock = &rzv2h_pwpr_pfc_lock_unlock,
.pmc_writeb = &rzv2h_pmc_writeb,
.pin_to_oen_bit = &rzg3e_pin_to_oen_bit,
.oen_read = &rzg2l_read_oen,
.oen_write = &rzg2l_write_oen,
.hw_to_bias_param = &rzv2h_hw_to_bias_param,
.bias_param_to_hw = &rzv2h_bias_param_to_hw,
};