On 30.05.2024 20:38, Prabhakar wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
>
> The pin configuration bits have been growing for every new SoCs being
> added for the pinctrl-rzg2l driver which would mean updating the macros
> every time for each new configuration. To avoid this allocate additional
> bits for pin configuration by relocating the known fixed bits to the very
> end of the configuration.
>
> Also update the size of 'cfg' to 'u64' to allow more configuration bits in
> the 'struct rzg2l_variable_pin_cfg'.
>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Tested-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> # on RZ/G3S
> ---
> v2->v3
> - Updated size for cfg in struct rzg2l_variable_pin_cfg
>
> RFC->v2
> - Merged the macros and rzg2l_variable_pin_cfg changes into single patch
> - Updated types for the config changes
> ---
> drivers/pinctrl/renesas/pinctrl-rzg2l.c | 30 ++++++++++++++-----------
> 1 file changed, 17 insertions(+), 13 deletions(-)
>
> diff --git a/drivers/pinctrl/renesas/pinctrl-rzg2l.c b/drivers/pinctrl/renesas/pinctrl-rzg2l.c
> index 169986022a73..fe810d8dfa58 100644
> --- a/drivers/pinctrl/renesas/pinctrl-rzg2l.c
> +++ b/drivers/pinctrl/renesas/pinctrl-rzg2l.c
> @@ -78,9 +78,9 @@
> PIN_CFG_FILNUM | \
> PIN_CFG_FILCLKSEL)
>
> -#define PIN_CFG_PIN_MAP_MASK GENMASK_ULL(35, 28)
> -#define PIN_CFG_PIN_REG_MASK GENMASK(27, 20)
> -#define PIN_CFG_MASK GENMASK(19, 0)
> +#define PIN_CFG_PIN_MAP_MASK GENMASK_ULL(62, 55)
> +#define PIN_CFG_PIN_REG_MASK GENMASK_ULL(54, 47)
> +#define PIN_CFG_MASK GENMASK_ULL(46, 0)
>
> /*
> * m indicates the bitmap of supported pins, a is the register index
> @@ -102,8 +102,8 @@
> * (b * 8) and f is the pin configuration capabilities supported.
> */
> #define RZG2L_SINGLE_PIN BIT_ULL(63)
> -#define RZG2L_SINGLE_PIN_INDEX_MASK GENMASK(30, 24)
> -#define RZG2L_SINGLE_PIN_BITS_MASK GENMASK(22, 20)
> +#define RZG2L_SINGLE_PIN_INDEX_MASK GENMASK_ULL(62, 56)
> +#define RZG2L_SINGLE_PIN_BITS_MASK GENMASK_ULL(55, 53)
>
> #define RZG2L_SINGLE_PIN_PACK(p, b, f) (RZG2L_SINGLE_PIN | \
> FIELD_PREP_CONST(RZG2L_SINGLE_PIN_INDEX_MASK, (p)) | \
> @@ -241,9 +241,9 @@ struct rzg2l_dedicated_configs {
> * @pin: port pin
> */
> struct rzg2l_variable_pin_cfg {
> - u32 cfg:20;
> - u32 port:5;
> - u32 pin:3;
> + u64 cfg:47;
> + u64 port:5;
> + u64 pin:3;
> };
>
> struct rzg2l_pinctrl_data {
> @@ -1081,7 +1081,8 @@ static int rzg2l_pinctrl_pinconf_get(struct pinctrl_dev *pctldev,
> const struct pinctrl_pin_desc *pin = &pctrl->desc.pins[_pin];
> u64 *pin_data = pin->drv_data;
> unsigned int arg = 0;
> - u32 off, cfg;
> + u32 off;
> + u64 cfg;
> int ret;
> u8 bit;
>
> @@ -1185,7 +1186,8 @@ static int rzg2l_pinctrl_pinconf_set(struct pinctrl_dev *pctldev,
> u64 *pin_data = pin->drv_data;
> enum pin_config_param param;
> unsigned int i, arg, index;
> - u32 cfg, off;
> + u32 off;
> + u64 cfg;
> int ret;
> u8 bit;
>
> @@ -2413,9 +2415,9 @@ static void rzg2l_pinctrl_pm_setup_regs(struct rzg2l_pinctrl *pctrl, bool suspen
>
> for (u32 port = 0; port < nports; port++) {
> bool has_iolh, has_ien;
> - u32 off, caps;
> + u64 cfg, caps;
> u8 pincnt;
> - u64 cfg;
> + u32 off;
>
> cfg = pctrl->data->port_pin_configs[port];
> off = RZG2L_PIN_CFG_TO_PORT_OFFSET(cfg);
> @@ -2459,12 +2461,14 @@ static void rzg2l_pinctrl_pm_setup_regs(struct rzg2l_pinctrl *pctrl, bool suspen
> static void rzg2l_pinctrl_pm_setup_dedicated_regs(struct rzg2l_pinctrl *pctrl, bool suspend)
> {
> struct rzg2l_pinctrl_reg_cache *cache = pctrl->dedicated_cache;
> + u64 caps;
> + u32 i;
>
> /*
> * Make sure entries in pctrl->data->n_dedicated_pins[] having the same
> * port offset are close together.
> */
> - for (u32 i = 0, caps = 0; i < pctrl->data->n_dedicated_pins; i++) {
> + for (i = 0, caps = 0; i < pctrl->data->n_dedicated_pins; i++) {
> bool has_iolh, has_ien;
> u32 off, next_off = 0;
> u64 cfg, next_cfg;