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To:     linux-amlogic@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux@vger.kernel.org
From:   Otto Meier <gf435@gmx.net>
Subject: [BUG] wrong pinning definition or uart_c in pinctrl-meson-gxbb.c
Message-ID: <b5370b4b-3347-1b95-aba2-1841f786b5a8@gmx.net>
Date:   Thu, 5 Sep 2019 13:22:35 +0200
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Hi i tried to use uart_C of the the odroid-c2.

I enabled it int the dts file. During boot it crashed when the
the sdcard slot is addressd.

After long search in the net i found this:

https://forum.odroid.com/viewtopic.php?f=139&t=25371&p=194370&hilit=uart_C#p177856


After changing the pin definitios accordingly erverything works.

Uart_c is functioning and sdcard ist working.

Patch attached

Bye Otto


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 name="uart_c_pins.diff"
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 filename="uart_c_pins.diff"

Hi i tried to use uart_C of the the odroid-c2.

I enabled it int the dts file. During boot it crashed when the
the sdcard slot is addressd.

After long search in the net i found this:

https://forum.odroid.com/viewtopic.php?f=139&t=25371&p=194370&hilit=uart_C#p177856


After changing the pin definitios accordingly erverything works.

Uart_c is functioning and sdcard ist working.


--- a/drivers/pinctrl/meson/pinctrl-meson-gxbb.c        2019-08-26 18:24:45.450089334 +0200
+++ b/drivers/pinctrl/meson/pinctrl-meson-gxbb.c        2019-09-05 13:07:38.518637214 +0200
@@ -192,8 +192,8 @@ static const unsigned int uart_rts_b_pin
 
 static const unsigned int uart_tx_c_pins[]     = { GPIOY_13 };
 static const unsigned int uart_rx_c_pins[]     = { GPIOY_14 };
-static const unsigned int uart_cts_c_pins[]    = { GPIOX_11 };
-static const unsigned int uart_rts_c_pins[]    = { GPIOX_12 };
+static const unsigned int uart_cts_c_pins[]    = { GPIOY_11 };
+static const unsigned int uart_rts_c_pins[]    = { GPIOY_12 };
 
 static const unsigned int i2c_sck_a_pins[]     = { GPIODV_25 };
 static const unsigned int i2c_sda_a_pins[]     = { GPIODV_24 };
@@ -439,10 +439,10 @@ static struct meson_pmx_group meson_gxbb
        GROUP(pwm_f_x,          3,      18),
 
        /* Bank Y */
-       GROUP(uart_cts_c,       1,      19),
-       GROUP(uart_rts_c,       1,      18),
-       GROUP(uart_tx_c,        1,      17),
-       GROUP(uart_rx_c,        1,      16),
+       GROUP(uart_cts_c,       1,      17),
+       GROUP(uart_rts_c,       1,      16),
+       GROUP(uart_tx_c,        1,      19),
+       GROUP(uart_rx_c,        1,      18),
        GROUP(pwm_a_y,          1,      21),
        GROUP(pwm_f_y,          1,      20),
        GROUP(i2s_out_ch23_y,   1,      5),

signed off Otto Meier gf435@gmx.net

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