From: Geert Uytterhoeven <geert+renesas@glider.be>
To: Linus Walleij <linus.walleij@linaro.org>,
Yoshinori Sato <ysato@users.sourceforge.jp>,
Rich Felker <dalias@libc.org>
Cc: linux-renesas-soc@vger.kernel.org, linux-sh@vger.kernel.org,
linux-gpio@vger.kernel.org,
Geert Uytterhoeven <geert+renesas@glider.be>
Subject: [PATCH 3/6] pinctrl: sh-pfc: sh7264: Fix CAN function GPIOs
Date: Wed, 18 Dec 2019 20:48:09 +0100 [thread overview]
Message-ID: <20191218194812.12741-4-geert+renesas@glider.be> (raw)
In-Reply-To: <20191218194812.12741-1-geert+renesas@glider.be>
pinmux_func_gpios[] contains a hole due to the missing function GPIO
definition for the "CTX0&CTX1" signal, which is the logical "AND" of the
two CAN outputs.
Fix this by:
- Renaming CRX0_CRX1_MARK to CTX0_CTX1_MARK, as PJ2MD[2:0]=010
configures the combined "CTX0&CTX1" output signal,
- Renaming CRX0X1_MARK to CRX0_CRX1_MARK, as PJ3MD[1:0]=10 configures
the shared "CRX0/CRX1" input signal, which is fed to both CAN
inputs,
- Adding the missing function GPIO definition for "CTX0&CTX1" to
pinmux_func_gpios[],
- Moving all CAN enums next to each other.
See SH7262 Group, SH7264 Group User's Manual: Hardware, Rev. 4.00:
[1] Figure 1.2 (3) (Pin Assignment for the SH7264 Group (1-Mbyte
Version),
[2] Figure 1.2 (4) Pin Assignment for the SH7264 Group (640-Kbyte
Version,
[3] Table 1.4 List of Pins,
[4] Figure 20.29 Connection Example when Using This Module as 1-Channel
Module (64 Mailboxes x 1 Channel),
[5] Table 32.10 Multiplexed Pins (Port J),
[6] Section 32.2.30 (3) Port J Control Register 0 (PJCR0).
Note that the last 2 disagree about PJ2MD[2:0], which is probably the
root cause of this bug. But considering [4], "CTx0&CTx1" in [5] must
be correct, and "CRx0&CRx1" in [6] must be wrong.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
The runtime-check under development reports:
sh7264_pfc: empty function gpio 23
---
drivers/pinctrl/sh-pfc/pfc-sh7264.c | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)
diff --git a/drivers/pinctrl/sh-pfc/pfc-sh7264.c b/drivers/pinctrl/sh-pfc/pfc-sh7264.c
index 4117bd8c0f413f99..908837ea487bdcb9 100644
--- a/drivers/pinctrl/sh-pfc/pfc-sh7264.c
+++ b/drivers/pinctrl/sh-pfc/pfc-sh7264.c
@@ -497,17 +497,15 @@ enum {
SD_WP_MARK, SD_CLK_MARK, SD_CMD_MARK,
CRX0_MARK, CRX1_MARK,
CTX0_MARK, CTX1_MARK,
+ CRX0_CRX1_MARK, CTX0_CTX1_MARK,
PWM1A_MARK, PWM1B_MARK, PWM1C_MARK, PWM1D_MARK,
PWM1E_MARK, PWM1F_MARK, PWM1G_MARK, PWM1H_MARK,
PWM2A_MARK, PWM2B_MARK, PWM2C_MARK, PWM2D_MARK,
PWM2E_MARK, PWM2F_MARK, PWM2G_MARK, PWM2H_MARK,
IERXD_MARK, IETXD_MARK,
- CRX0_CRX1_MARK,
WDTOVF_MARK,
- CRX0X1_MARK,
-
/* DMAC */
TEND0_MARK, DACK0_MARK, DREQ0_MARK,
TEND1_MARK, DACK1_MARK, DREQ1_MARK,
@@ -995,12 +993,12 @@ static const u16 pinmux_data[] = {
PINMUX_DATA(PJ3_DATA, PJ3MD_00),
PINMUX_DATA(CRX1_MARK, PJ3MD_01),
- PINMUX_DATA(CRX0X1_MARK, PJ3MD_10),
+ PINMUX_DATA(CRX0_CRX1_MARK, PJ3MD_10),
PINMUX_DATA(IRQ1_PJ_MARK, PJ3MD_11),
PINMUX_DATA(PJ2_DATA, PJ2MD_000),
PINMUX_DATA(CTX1_MARK, PJ2MD_001),
- PINMUX_DATA(CRX0_CRX1_MARK, PJ2MD_010),
+ PINMUX_DATA(CTX0_CTX1_MARK, PJ2MD_010),
PINMUX_DATA(CS2_MARK, PJ2MD_011),
PINMUX_DATA(SCK0_MARK, PJ2MD_100),
PINMUX_DATA(LCD_M_DISP_MARK, PJ2MD_101),
@@ -1245,6 +1243,7 @@ static const struct pinmux_func pinmux_func_gpios[] = {
GPIO_FN(CTX1),
GPIO_FN(CRX1),
GPIO_FN(CTX0),
+ GPIO_FN(CTX0_CTX1),
GPIO_FN(CRX0),
GPIO_FN(CRX0_CRX1),
--
2.17.1
next prev parent reply other threads:[~2019-12-18 19:48 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-18 19:48 [PATCH 0/6] pinctrl: sh-pfc: More miscellenaous fixes Geert Uytterhoeven
2019-12-18 19:48 ` [PATCH 1/6] pinctrl: sh-pfc: r8a7778: Fix duplicate SDSELF_B and SD1_CLK_B Geert Uytterhoeven
2019-12-18 19:48 ` [PATCH 2/6] pinctrl: sh-pfc: sh7264: Fix Port K I/O Register 0 definition Geert Uytterhoeven
2019-12-18 19:48 ` Geert Uytterhoeven [this message]
2019-12-18 19:48 ` [PATCH 4/6] pinctrl: sh-pfc: sh7269: Fix CAN function GPIOs Geert Uytterhoeven
2019-12-18 19:48 ` [PATCH 5/6] sh: sh7264: Remove bogus SSU GPIO function definitions Geert Uytterhoeven
2019-12-18 19:48 ` [PATCH 6/6] sh: sh7269: " Geert Uytterhoeven
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