On some platforms like SM6350 (Bitra), some pins have their slew controlled with the SPARE_1 register - probably because they ran out of register space for an extra pin. Add support for that.
Signed-off-by: Luca Weiss <[email protected]> --- drivers/pinctrl/qcom/pinctrl-lpass-lpi.c | 2 ++ drivers/pinctrl/qcom/pinctrl-lpass-lpi.h | 20 ++++++++++++++++++++ 2 files changed, 22 insertions(+) diff --git a/drivers/pinctrl/qcom/pinctrl-lpass-lpi.c b/drivers/pinctrl/qcom/pinctrl-lpass-lpi.c index 76aed3296279..15ced5027579 100644 --- a/drivers/pinctrl/qcom/pinctrl-lpass-lpi.c +++ b/drivers/pinctrl/qcom/pinctrl-lpass-lpi.c @@ -220,6 +220,8 @@ static int lpi_config_set_slew_rate(struct lpi_pinctrl *pctrl, if (pctrl->data->flags & LPI_FLAG_SLEW_RATE_SAME_REG) reg = pctrl->tlmm_base + LPI_TLMM_REG_OFFSET * group + LPI_GPIO_CFG_REG; + else if (g->slew_base_spare_1) + reg = pctrl->slew_base + LPI_SPARE_1_REG; else reg = pctrl->slew_base + LPI_SLEW_RATE_CTL_REG; diff --git a/drivers/pinctrl/qcom/pinctrl-lpass-lpi.h b/drivers/pinctrl/qcom/pinctrl-lpass-lpi.h index f48368492861..6ba0c4eba984 100644 --- a/drivers/pinctrl/qcom/pinctrl-lpass-lpi.h +++ b/drivers/pinctrl/qcom/pinctrl-lpass-lpi.h @@ -16,6 +16,7 @@ struct platform_device; struct pinctrl_pin_desc; #define LPI_SLEW_RATE_CTL_REG 0xa000 +#define LPI_SPARE_1_REG 0xc000 #define LPI_TLMM_REG_OFFSET 0x1000 #define LPI_SLEW_RATE_MAX 0x03 #define LPI_SLEW_BITS_SIZE 0x02 @@ -47,6 +48,7 @@ struct pinctrl_pin_desc; { \ .pin = id, \ .slew_offset = soff, \ + .slew_base_spare_1 = false, \ .funcs = (int[]){ \ LPI_MUX_gpio, \ LPI_MUX_##f1, \ @@ -62,6 +64,7 @@ struct pinctrl_pin_desc; { \ .pin = id, \ .slew_offset = soff, \ + .slew_base_spare_1 = false, \ .funcs = (int[]){ \ LPI_MUX_gpio, \ LPI_MUX_##f1, \ @@ -73,6 +76,22 @@ struct pinctrl_pin_desc; .pin_offset = poff, \ } +#define LPI_PINGROUP_SLEW_SPARE_1(id, soff, f1, f2, f3, f4) \ + { \ + .pin = id, \ + .slew_offset = soff, \ + .slew_base_spare_1 = true, \ + .funcs = (int[]){ \ + LPI_MUX_gpio, \ + LPI_MUX_##f1, \ + LPI_MUX_##f2, \ + LPI_MUX_##f3, \ + LPI_MUX_##f4, \ + }, \ + .nfuncs = 5, \ + .pin_offset = 0, \ + } + /* * Slew rate control is done in the same register as rest of the * pin configuration. @@ -87,6 +106,7 @@ struct lpi_pingroup { unsigned int *funcs; unsigned int nfuncs; unsigned int pin_offset; + bool slew_base_spare_1; }; struct lpi_function { -- 2.52.0
