I've included the pin I/O voltage control into the R8A77970 PFC driver but
it was incomplete because:
- SH_PFC_PIN_CFG_IO_VOLTAGE pin flags weren't set properly;
- sh_pfc_soc_info::ioctrl_regs wasn't set at all...
Fixes: b92ac66a1819 ("pinctrl: sh-pfc: Add R8A77970 PFC support")
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@xxxxxxxxxxxxxxxxxx>
---
The patch is against the 'sh-pfc' branch of Geert's 'renesas-drivers.git' repo.
Changes in version 2:
- fixed the commit SHA1 in the "Fixes:" tag.
drivers/pinctrl/sh-pfc/pfc-r8a77970.c | 34 ++++++++++++++++++++++++++--------
1 file changed, 26 insertions(+), 8 deletions(-)
Index: renesas-drivers/drivers/pinctrl/sh-pfc/pfc-r8a77970.c
===================================================================
--- renesas-drivers.orig/drivers/pinctrl/sh-pfc/pfc-r8a77970.c
+++ renesas-drivers/drivers/pinctrl/sh-pfc/pfc-r8a77970.c
@@ -21,13 +21,15 @@
#include "core.h"
#include "sh_pfc.h"
+#define CFG_FLAGS SH_PFC_PIN_CFG_DRIVE_STRENGTH
+
#define CPU_ALL_PORT(fn, sfx) \
- PORT_GP_CFG_22(0, fn, sfx, SH_PFC_PIN_CFG_DRIVE_STRENGTH), \
- PORT_GP_CFG_28(1, fn, sfx, SH_PFC_PIN_CFG_DRIVE_STRENGTH), \
- PORT_GP_CFG_17(2, fn, sfx, SH_PFC_PIN_CFG_DRIVE_STRENGTH), \
- PORT_GP_CFG_17(3, fn, sfx, SH_PFC_PIN_CFG_DRIVE_STRENGTH), \
- PORT_GP_CFG_6(4, fn, sfx, SH_PFC_PIN_CFG_DRIVE_STRENGTH), \
- PORT_GP_CFG_15(5, fn, sfx, SH_PFC_PIN_CFG_DRIVE_STRENGTH)
+ PORT_GP_CFG_22(0, fn, sfx, CFG_FLAGS | SH_PFC_PIN_CFG_IO_VOLTAGE), \
+ PORT_GP_CFG_28(1, fn, sfx, CFG_FLAGS), \
+ PORT_GP_CFG_17(2, fn, sfx, CFG_FLAGS | SH_PFC_PIN_CFG_IO_VOLTAGE), \
+ PORT_GP_CFG_17(3, fn, sfx, CFG_FLAGS | SH_PFC_PIN_CFG_IO_VOLTAGE), \
+ PORT_GP_CFG_6(4, fn, sfx, CFG_FLAGS), \
+ PORT_GP_CFG_15(5, fn, sfx, CFG_FLAGS)
/*
* F_() : just information
* FM() : macro for FN_xxx / xxx_MARK
@@ -2382,18 +2384,33 @@ static const struct pinmux_cfg_reg pinmu
{ },
};
+enum ioctrl_regs {
+ IOCTRL30,
+ IOCTRL31,
+ IOCTRL32,
+ IOCTRL40,
+};
+
+static const struct pinmux_ioctrl_reg pinmux_ioctrl_regs[] = {
+ [IOCTRL30] = { 0xe6060380 },
+ [IOCTRL31] = { 0xe6060384 },
+ [IOCTRL32] = { 0xe6060388 },
+ [IOCTRL40] = { 0xe60603c0 },
+ { /* sentinel */ },
+};
+
static int r8a77970_pin_to_pocctrl(struct sh_pfc *pfc, unsigned int pin,
u32 *pocctrl)
{
int bit = pin & 0x1f;
- *pocctrl = 0xe6060380;
+ *pocctrl = pinmux_ioctrl_regs[IOCTRL30].reg;
if (pin >= RCAR_GP_PIN(0, 0) && pin <= RCAR_GP_PIN(0, 21))
return bit;
if (pin >= RCAR_GP_PIN(2, 0) && pin <= RCAR_GP_PIN(2, 9))
return bit + 22;
- *pocctrl += 4;
+ *pocctrl = pinmux_ioctrl_regs[IOCTRL31].reg;
if (pin >= RCAR_GP_PIN(2, 10) && pin <= RCAR_GP_PIN(2, 16))
return bit - 10;
if (pin >= RCAR_GP_PIN(3, 0) && pin <= RCAR_GP_PIN(3, 16))
@@ -2421,6 +2438,7 @@ const struct sh_pfc_soc_info r8a77970_pi
.nr_functions = ARRAY_SIZE(pinmux_functions),
.cfg_regs = pinmux_config_regs,
+ .ioctrl_regs = pinmux_ioctrl_regs,
.pinmux_data = pinmux_data,
.pinmux_data_size = ARRAY_SIZE(pinmux_data),
