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- From f76e8bc416bebb0f7b9f57b1247eae945421c0b9 Mon Sep 17 00:00:00 2001
- From: Sam Shih <[email protected]>
- Date: Sat, 8 Oct 2022 18:48:06 +0200
- Subject: [PATCH 1/2] pinctrl: mt7986: allow configuring uart rx/tx and rts/cts
- separately
- Some mt7986 boards use uart rts/cts pins as gpio,
- This patch allows to change rts/cts to gpio mode, but keep
- rx/tx as UART function.
- Signed-off-by: Frank Wunderlich <[email protected]>
- Signed-off-by: Sam Shih <[email protected]>
- Link: https://lore.kernel.org/r/[email protected]
- Signed-off-by: Linus Walleij <[email protected]>
- ---
- drivers/pinctrl/mediatek/pinctrl-mt7986.c | 32 ++++++++++++++++++-----
- 1 file changed, 25 insertions(+), 7 deletions(-)
- --- a/drivers/pinctrl/mediatek/pinctrl-mt7986.c
- +++ b/drivers/pinctrl/mediatek/pinctrl-mt7986.c
- @@ -675,11 +675,17 @@ static int mt7986_uart1_1_funcs[] = { 4,
- static int mt7986_spi1_2_pins[] = { 29, 30, 31, 32, };
- static int mt7986_spi1_2_funcs[] = { 1, 1, 1, 1, };
-
- -static int mt7986_uart1_2_pins[] = { 29, 30, 31, 32, };
- -static int mt7986_uart1_2_funcs[] = { 3, 3, 3, 3, };
- +static int mt7986_uart1_2_rx_tx_pins[] = { 29, 30, };
- +static int mt7986_uart1_2_rx_tx_funcs[] = { 3, 3, };
-
- -static int mt7986_uart2_0_pins[] = { 29, 30, 31, 32, };
- -static int mt7986_uart2_0_funcs[] = { 4, 4, 4, 4, };
- +static int mt7986_uart1_2_cts_rts_pins[] = { 31, 32, };
- +static int mt7986_uart1_2_cts_rts_funcs[] = { 3, 3, };
- +
- +static int mt7986_uart2_0_rx_tx_pins[] = { 29, 30, };
- +static int mt7986_uart2_0_rx_tx_funcs[] = { 4, 4, };
- +
- +static int mt7986_uart2_0_cts_rts_pins[] = { 31, 32, };
- +static int mt7986_uart2_0_cts_rts_funcs[] = { 4, 4, };
-
- static int mt7986_spi0_pins[] = { 33, 34, 35, 36, };
- static int mt7986_spi0_funcs[] = { 1, 1, 1, 1, };
- @@ -708,6 +714,12 @@ static int mt7986_pcie_reset_funcs[] = {
- static int mt7986_uart1_pins[] = { 42, 43, 44, 45, };
- static int mt7986_uart1_funcs[] = { 1, 1, 1, 1, };
-
- +static int mt7986_uart1_rx_tx_pins[] = { 42, 43, };
- +static int mt7986_uart1_rx_tx_funcs[] = { 1, 1, };
- +
- +static int mt7986_uart1_cts_rts_pins[] = { 44, 45, };
- +static int mt7986_uart1_cts_rts_funcs[] = { 1, 1, };
- +
- static int mt7986_uart2_pins[] = { 46, 47, 48, 49, };
- static int mt7986_uart2_funcs[] = { 1, 1, 1, 1, };
-
- @@ -749,6 +761,8 @@ static const struct group_desc mt7986_gr
- PINCTRL_PIN_GROUP("wifi_led", mt7986_wifi_led),
- PINCTRL_PIN_GROUP("i2c", mt7986_i2c),
- PINCTRL_PIN_GROUP("uart1_0", mt7986_uart1_0),
- + PINCTRL_PIN_GROUP("uart1_rx_tx", mt7986_uart1_rx_tx),
- + PINCTRL_PIN_GROUP("uart1_cts_rts", mt7986_uart1_cts_rts),
- PINCTRL_PIN_GROUP("pcie_clk", mt7986_pcie_clk),
- PINCTRL_PIN_GROUP("pcie_wake", mt7986_pcie_wake),
- PINCTRL_PIN_GROUP("spi1_0", mt7986_spi1_0),
- @@ -760,8 +774,10 @@ static const struct group_desc mt7986_gr
- PINCTRL_PIN_GROUP("spi1_1", mt7986_spi1_1),
- PINCTRL_PIN_GROUP("uart1_1", mt7986_uart1_1),
- PINCTRL_PIN_GROUP("spi1_2", mt7986_spi1_2),
- - PINCTRL_PIN_GROUP("uart1_2", mt7986_uart1_2),
- - PINCTRL_PIN_GROUP("uart2_0", mt7986_uart2_0),
- + PINCTRL_PIN_GROUP("uart1_2_rx_tx", mt7986_uart1_2_rx_tx),
- + PINCTRL_PIN_GROUP("uart1_2_cts_rts", mt7986_uart1_2_cts_rts),
- + PINCTRL_PIN_GROUP("uart2_0_rx_tx", mt7986_uart2_0_rx_tx),
- + PINCTRL_PIN_GROUP("uart2_0_cts_rts", mt7986_uart2_0_cts_rts),
- PINCTRL_PIN_GROUP("spi0", mt7986_spi0),
- PINCTRL_PIN_GROUP("spi0_wp_hold", mt7986_spi0_wp_hold),
- PINCTRL_PIN_GROUP("uart2_1", mt7986_uart2_1),
- @@ -800,7 +816,9 @@ static const char *mt7986_pwm_groups[] =
- static const char *mt7986_spi_groups[] = {
- "spi0", "spi0_wp_hold", "spi1_0", "spi1_1", "spi1_2", "spi1_3", };
- static const char *mt7986_uart_groups[] = {
- - "uart1_0", "uart1_1", "uart1_2", "uart1_3_rx_tx", "uart1_3_cts_rts",
- + "uart1_0", "uart1_1", "uart1_rx_tx", "uart1_cts_rts",
- + "uart1_2_rx_tx", "uart1_2_cts_rts",
- + "uart1_3_rx_tx", "uart1_3_cts_rts", "uart2_0_rx_tx", "uart2_0_cts_rts",
- "uart2_0", "uart2_1", "uart0", "uart1", "uart2",
- };
- static const char *mt7986_wdt_groups[] = { "watchdog", };
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