From: Samuel Holland samuel@sholland.org
commit fc153c8f283bf5925615195fc9d4056414d7b168 upstream.
H6 requires I/O bias configuration on both of its PIO devices. Previously it was only done for the main PIO.
The setting for Port L is at bit 0, so the bank calculation needs to account for the pin base. Otherwise the wrong bit is used.
Fixes: cc62383fcebe ("pinctrl: sunxi: Support I/O bias voltage setting on H6") Reviewed-by: Jernej Skrabec jernej.skrabec@gmail.com Tested-by: Heiko Stuebner heiko@sntech.de Signed-off-by: Samuel Holland samuel@sholland.org Link: https://lore.kernel.org/r/20220713025233.27248-3-samuel@sholland.org Signed-off-by: Linus Walleij linus.walleij@linaro.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/pinctrl/sunxi/pinctrl-sun50i-h6-r.c | 1 + drivers/pinctrl/sunxi/pinctrl-sunxi.c | 7 ++++--- 2 files changed, 5 insertions(+), 3 deletions(-)
--- a/drivers/pinctrl/sunxi/pinctrl-sun50i-h6-r.c +++ b/drivers/pinctrl/sunxi/pinctrl-sun50i-h6-r.c @@ -107,6 +107,7 @@ static const struct sunxi_pinctrl_desc s .npins = ARRAY_SIZE(sun50i_h6_r_pins), .pin_base = PL_BASE, .irq_banks = 2, + .io_bias_cfg_variant = BIAS_VOLTAGE_PIO_POW_MODE_SEL, };
static int sun50i_h6_r_pinctrl_probe(struct platform_device *pdev) --- a/drivers/pinctrl/sunxi/pinctrl-sunxi.c +++ b/drivers/pinctrl/sunxi/pinctrl-sunxi.c @@ -624,7 +624,7 @@ static int sunxi_pinctrl_set_io_bias_cfg unsigned pin, struct regulator *supply) { - unsigned short bank = pin / PINS_PER_BANK; + unsigned short bank; unsigned long flags; u32 val, reg; int uV; @@ -640,6 +640,9 @@ static int sunxi_pinctrl_set_io_bias_cfg if (uV == 0) return 0;
+ pin -= pctl->desc->pin_base; + bank = pin / PINS_PER_BANK; + switch (pctl->desc->io_bias_cfg_variant) { case BIAS_VOLTAGE_GRP_CONFIG: /* @@ -657,8 +660,6 @@ static int sunxi_pinctrl_set_io_bias_cfg else val = 0xD; /* 3.3V */
- pin -= pctl->desc->pin_base; - reg = readl(pctl->membase + sunxi_grp_config_reg(pin)); reg &= ~IO_BIAS_MASK; writel(reg | val, pctl->membase + sunxi_grp_config_reg(pin));