| Message ID | 20230712135553.25162-1-pshete@nvidia.com |
|---|---|
| State | Changes Requested |
| Headers | show |
| Series | pinctrl: tegra: Add support to display pin function | expand |
On Wed, Jul 12, 2023 at 07:25:53PM +0530, Prathamesh Shete wrote: > The current function for a given pin is not displayed via the debugfs. > Add support to display the current function that is set for each pin. > > Signed-off-by: Prathamesh Shete <pshete@nvidia.com> > --- > drivers/pinctrl/tegra/pinctrl-tegra.c | 19 +++++++++++++++++-- > drivers/pinctrl/tegra/pinctrl-tegra.h | 2 ++ > 2 files changed, 19 insertions(+), 2 deletions(-) > > diff --git a/drivers/pinctrl/tegra/pinctrl-tegra.c b/drivers/pinctrl/tegra/pinctrl-tegra.c > index 4547cf66d03b..2752c914f628 100644 > --- a/drivers/pinctrl/tegra/pinctrl-tegra.c > +++ b/drivers/pinctrl/tegra/pinctrl-tegra.c > @@ -96,6 +96,7 @@ static const struct cfg_param { > {"nvidia,slew-rate-falling", TEGRA_PINCONF_PARAM_SLEW_RATE_FALLING}, > {"nvidia,slew-rate-rising", TEGRA_PINCONF_PARAM_SLEW_RATE_RISING}, > {"nvidia,drive-type", TEGRA_PINCONF_PARAM_DRIVE_TYPE}, > + {"nvidia,func", TEGRA_PINCONF_PARAM_FUNCTION}, Device tree bindings define the "nvidia,function" property to contain this information, so shouldn't we use the same name here? Thierry
diff --git a/drivers/pinctrl/tegra/pinctrl-tegra.c b/drivers/pinctrl/tegra/pinctrl-tegra.c index 4547cf66d03b..2752c914f628 100644 --- a/drivers/pinctrl/tegra/pinctrl-tegra.c +++ b/drivers/pinctrl/tegra/pinctrl-tegra.c @@ -96,6 +96,7 @@ static const struct cfg_param { {"nvidia,slew-rate-falling", TEGRA_PINCONF_PARAM_SLEW_RATE_FALLING}, {"nvidia,slew-rate-rising", TEGRA_PINCONF_PARAM_SLEW_RATE_RISING}, {"nvidia,drive-type", TEGRA_PINCONF_PARAM_DRIVE_TYPE}, + {"nvidia,func", TEGRA_PINCONF_PARAM_FUNCTION}, }; static int tegra_pinctrl_dt_subnode_to_map(struct pinctrl_dev *pctldev, @@ -470,6 +471,12 @@ static int tegra_pinconf_reg(struct tegra_pmx *pmx, *bit = g->drvtype_bit; *width = 2; break; + case TEGRA_PINCONF_PARAM_FUNCTION: + *bank = g->mux_bank; + *reg = g->mux_reg; + *bit = g->mux_bit; + *width = 2; + break; default: dev_err(pmx->dev, "Invalid config param %04x\n", param); return -ENOTSUPP; @@ -620,6 +627,7 @@ static void tegra_pinconf_group_dbg_show(struct pinctrl_dev *pctldev, s8 bank, bit, width; s32 reg; u32 val; + u8 idx; g = &pmx->soc->groups[group]; @@ -633,8 +641,15 @@ static void tegra_pinconf_group_dbg_show(struct pinctrl_dev *pctldev, val >>= bit; val &= (1 << width) - 1; - seq_printf(s, "\n\t%s=%u", - strip_prefix(cfg_params[i].property), val); + if (cfg_params[i].param == TEGRA_PINCONF_PARAM_FUNCTION) { + idx = pmx->soc->groups[group].funcs[val]; + seq_printf(s, "\n\t%s=%s", + strip_prefix(cfg_params[i].property), + pmx->functions[idx].name); + } else { + seq_printf(s, "\n\t%s=%u", + strip_prefix(cfg_params[i].property), val); + } } } diff --git a/drivers/pinctrl/tegra/pinctrl-tegra.h b/drivers/pinctrl/tegra/pinctrl-tegra.h index b3289bdf727d..e728efeaa4de 100644 --- a/drivers/pinctrl/tegra/pinctrl-tegra.h +++ b/drivers/pinctrl/tegra/pinctrl-tegra.h @@ -54,6 +54,8 @@ enum tegra_pinconf_param { TEGRA_PINCONF_PARAM_SLEW_RATE_RISING, /* argument: Integer, range is HW-dependant */ TEGRA_PINCONF_PARAM_DRIVE_TYPE, + /* argument: pinmux settings */ + TEGRA_PINCONF_PARAM_FUNCTION, }; enum tegra_pinconf_pull {
The current function for a given pin is not displayed via the debugfs. Add support to display the current function that is set for each pin. Signed-off-by: Prathamesh Shete <pshete@nvidia.com> --- drivers/pinctrl/tegra/pinctrl-tegra.c | 19 +++++++++++++++++-- drivers/pinctrl/tegra/pinctrl-tegra.h | 2 ++ 2 files changed, 19 insertions(+), 2 deletions(-)