diff options
| -rw-r--r-- | Documentation/devicetree/bindings/pinctrl/pinctrl-aspeed.txt | 80 | ||||
| -rw-r--r-- | drivers/pinctrl/aspeed/pinctrl-aspeed-g4.c | 18 | ||||
| -rw-r--r-- | drivers/pinctrl/aspeed/pinctrl-aspeed-g5.c | 48 | ||||
| -rw-r--r-- | drivers/pinctrl/aspeed/pinctrl-aspeed.c | 161 | ||||
| -rw-r--r-- | drivers/pinctrl/aspeed/pinctrl-aspeed.h | 32 |
5 files changed, 242 insertions, 97 deletions
diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-aspeed.txt b/Documentation/devicetree/bindings/pinctrl/pinctrl-aspeed.txt index b2efb73337c6..fb7694ec033d 100644 --- a/Documentation/devicetree/bindings/pinctrl/pinctrl-aspeed.txt +++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-aspeed.txt @@ -1,15 +1,23 @@ +====================== Aspeed Pin Controllers ----------------------- +====================== The Aspeed SoCs vary in functionality inside a generation but have a common mux device register layout. -Required properties: -- compatible : Should be any one of the following: - "aspeed,ast2400-pinctrl" - "aspeed,g4-pinctrl" - "aspeed,ast2500-pinctrl" - "aspeed,g5-pinctrl" +Required properties for g4: +- compatible : Should be one of the following: + "aspeed,ast2400-pinctrl" + "aspeed,g4-pinctrl" + +Required properties for g5: +- compatible : Should be one of the following: + "aspeed,ast2500-pinctrl" + "aspeed,g5-pinctrl" + +- aspeed,external-nodes: A cell of phandles to external controller nodes: + 0: compatible with "aspeed,ast2500-gfx", "syscon" + 1: compatible with "aspeed,ast2500-lhc", "syscon" The pin controller node should be the child of a syscon node with the required property: @@ -24,7 +32,7 @@ Refer to the the bindings described in Documentation/devicetree/bindings/mfd/syscon.txt Subnode Format --------------- +============== The required properties of child nodes are (as defined in pinctrl-bindings): - function @@ -51,8 +59,11 @@ I2C9 MAC1LINK MDIO1 MDIO2 OSCCLK PEWAKE PWM0 PWM1 PWM2 PWM3 PWM4 PWM5 PWM6 PWM7 RGMII1 RGMII2 RMII1 RMII2 SD1 SPI1 SPI1DEBUG SPI1PASSTHRU TIMER4 TIMER5 TIMER6 TIMER7 TIMER8 VGABIOSROM +Examples +======== -Examples: +g4 Example +---------- syscon: scu@1e6e2000 { compatible = "aspeed,ast2400-scu", "syscon", "simple-mfd"; @@ -68,5 +79,56 @@ syscon: scu@1e6e2000 { }; }; +g5 Example +---------- + +ahb { + apb { + syscon: scu@1e6e2000 { + compatible = "aspeed,ast2500-scu", "syscon", "simple-mfd"; + reg = <0x1e6e2000 0x1a8>; + + pinctrl: pinctrl { + compatible = "aspeed,g5-pinctrl"; + aspeed,external-nodes = <&gfx &lhc>; + + pinctrl_i2c3_default: i2c3_default { + function = "I2C3"; + groups = "I2C3"; + }; + }; + }; + + gfx: display@1e6e6000 { + compatible = "aspeed,ast2500-gfx", "syscon"; + reg = <0x1e6e6000 0x1000>; + }; + }; + + lpc: lpc@1e789000 { + compatible = "aspeed,ast2500-lpc", "simple-mfd"; + reg = <0x1e789000 0x1000>; + + #address-cells = <1>; + #size-cells = <1>; + ranges = <0x0 0x1e789000 0x1000>; + + lpc_host: lpc-host@80 { + compatible = "aspeed,ast2500-lpc-host", "simple-mfd", "syscon"; + reg = <0x80 0x1e0>; + reg-io-width = <4>; + + #address-cells = <1>; + #size-cells = <1>; + ranges = <0x0 0x80 0x1e0>; + + lhc: lhc@20 { + compatible = "aspeed,ast2500-lhc"; + reg = <0x20 0x24 0x48 0x8>; + }; + }; + }; +}; + Please refer to pinctrl-bindings.txt in this directory for details of the common pinctrl bindings used by client devices. diff --git a/drivers/pinctrl/aspeed/pinctrl-aspeed-g4.c b/drivers/pinctrl/aspeed/pinctrl-aspeed-g4.c index a21b071ff290..558bd102416c 100644 --- a/drivers/pinctrl/aspeed/pinctrl-aspeed-g4.c +++ b/drivers/pinctrl/aspeed/pinctrl-aspeed-g4.c @@ -292,7 +292,7 @@ SSSF_PIN_DECL(U18, GPIOG7, FLWP, SIG_DESC_SET(SCU84, 7)); #define UART6_DESC SIG_DESC_SET(SCU90, 7) #define ROM16_DESC SIG_DESC_SET(SCU90, 6) #define FLASH_WIDE SIG_DESC_SET(HW_STRAP1, 4) -#define BOOT_SRC_NOR { HW_STRAP1, GENMASK(1, 0), 0, 0 } +#define BOOT_SRC_NOR { ASPEED_IP_SCU, HW_STRAP1, GENMASK(1, 0), 0, 0 } #define A8 56 SIG_EXPR_DECL(ROMD8, ROM16, ROM16_DESC); @@ -418,9 +418,9 @@ FUNC_GROUP_DECL(I2C8, G5, F3); #define U1 88 SSSF_PIN_DECL(U1, GPIOL0, NCTS1, SIG_DESC_SET(SCU84, 16)); -#define VPI18_DESC { SCU90, GENMASK(5, 4), 1, 0 } -#define VPI24_DESC { SCU90, GENMASK(5, 4), 2, 0 } -#define VPI30_DESC { SCU90, GENMASK(5, 4), 3, 0 } +#define VPI18_DESC { ASPEED_IP_SCU, SCU90, GENMASK(5, 4), 1, 0 } +#define VPI24_DESC { ASPEED_IP_SCU, SCU90, GENMASK(5, 4), 2, 0 } +#define VPI30_DESC { ASPEED_IP_SCU, SCU90, GENMASK(5, 4), 3, 0 } #define T5 89 #define T5_DESC SIG_DESC_SET(SCU84, 17) @@ -641,11 +641,11 @@ SSSF_PIN_DECL(Y22, GPIOR2, ROMCS3, SIG_DESC_SET(SCU88, 26)); #define U19 139 SSSF_PIN_DECL(U19, GPIOR3, ROMCS4, SIG_DESC_SET(SCU88, 27)); -#define VPOOFF0_DESC { SCU94, GENMASK(1, 0), 0, 0 } -#define VPO12_DESC { SCU94, GENMASK(1, 0), 1, 0 } -#define VPO24_DESC { SCU94, GENMASK(1, 0), 2, 0 } -#define VPOOFF1_DESC { SCU94, GENMASK(1, 0), 3, 0 } -#define VPO_OFF_12 { SCU94, 0x2, 0, 0 } +#define VPOOFF0_DESC { ASPEED_IP_SCU, SCU94, GENMASK(1, 0), 0, 0 } +#define VPO12_DESC { ASPEED_IP_SCU, SCU94, GENMASK(1, 0), 1, 0 } +#define VPO24_DESC { ASPEED_IP_SCU, SCU94, GENMASK(1, 0), 2, 0 } +#define VPOOFF1_DESC { ASPEED_IP_SCU, SCU94, GENMASK(1, 0), 3, 0 } +#define VPO_OFF_12 { ASPEED_IP_SCU, SCU94, 0x2, 0, 0 } #define VPO_24_OFF SIG_DESC_SET(SCU94, 1) #define V21 140 diff --git a/drivers/pinctrl/aspeed/pinctrl-aspeed-g5.c b/drivers/pinctrl/aspeed/pinctrl-aspeed-g5.c index 87b46390b695..c5c9a1b6fa1c 100644 --- a/drivers/pinctrl/aspeed/pinctrl-aspeed-g5.c +++ b/drivers/pinctrl/aspeed/pinctrl-aspeed-g5.c @@ -10,6 +10,7 @@ #include <linux/init.h> #include <linux/io.h> #include <linux/kernel.h> +#include <linux/mfd/syscon.h> #include <linux/mutex.h> #include <linux/of.h> #include <linux/platform_device.h> @@ -26,8 +27,8 @@ #define ASPEED_G5_NR_PINS 228 -#define COND1 { SCU90, BIT(6), 0, 0 } -#define COND2 { SCU94, GENMASK(1, 0), 0, 0 } +#define COND1 { ASPEED_IP_SCU, SCU90, BIT(6), 0, 0 } +#define COND2 { ASPEED_IP_SCU, SCU94, GENMASK(1, 0), 0, 0 } #define B14 0 SSSF_PIN_DECL(B14, GPIOA0, MAC1LINK, SIG_DESC_SET(SCU80, 0)); @@ -186,9 +187,12 @@ MS_PIN_DECL(C20, GPIOE1, NDCD3, GPIE0OUT); FUNC_GROUP_DECL(GPIE0, B20, C20); -#define SPI1_DESC { HW_STRAP1, GENMASK(13, 12), 1, 0 } -#define SPI1DEBUG_DESC { HW_STRAP1, GENMASK(13, 12), 2, 0 } -#define SPI1PASSTHRU_DESC { HW_STRAP1, GENMASK(13, 12), 3, 0 } +#define SPI1_DESC \ + { ASPEED_IP_SCU, HW_STRAP1, GENMASK(13, 12), 1, 0 } +#define SPI1DEBUG_DESC \ + { ASPEED_IP_SCU, HW_STRAP1, GENMASK(13, 12), 2, 0 } +#define SPI1PASSTHRU_DESC \ + { ASPEED_IP_SCU, HW_STRAP1, GENMASK(13, 12), 3, 0 } #define C18 64 SIG_EXPR_DECL(SYSCS, SPI1DEBUG, COND1, SPI1DEBUG_DESC); @@ -325,10 +329,11 @@ SS_PIN_DECL(R1, GPIOK7, SDA8); FUNC_GROUP_DECL(I2C8, P2, R1); -#define VPIOFF0_DESC { SCU90, GENMASK(5, 4), 0, 0 } -#define VPIOFF1_DESC { SCU90, GENMASK(5, 4), 1, 0 } -#define VPI24_DESC { SCU90, GENMASK(5, 4), 2, 0 } -#define VPIRSVD_DESC { SCU90, GENMASK(5, 4), 3, 0 } +#define VPIOFF0_DESC { ASPEED_IP_SCU, SCU90, GENMASK(5, 4), 0, 0 } +#define VPIOFF1_DESC { ASPEED_IP_SCU, SCU90, GENMASK(5, 4), 1, 0 } +#define VPI24_DESC { ASPEED_IP_SCU, SCU90, GENMASK(5, 4), 2, 0 } +#define VPIRSVD_DESC { ASPEED_IP_SCU, SCU90, GENMASK(5, 4), 3, 0 } + #define V2 104 #define V2_DESC SIG_DESC_SET(SCU88, 0) @@ -848,10 +853,35 @@ static struct pinctrl_desc aspeed_g5_pinctrl_desc = { static int aspeed_g5_pinctrl_probe(struct platform_device *pdev) { int i; + struct regmap *map; + struct device_node *node; for (i = 0; i < ARRAY_SIZE(aspeed_g5_pins); i++) aspeed_g5_pins[i].number = i; + node = of_parse_phandle(pdev->dev.of_node, "aspeed,external-nodes", 0); + map = syscon_node_to_regmap(node); + of_node_put(node); + if (IS_ERR(map)) { + dev_warn(&pdev->dev, "No GFX phandle found, some mux configurations may fail\n"); + map = NULL; + } + aspeed_g5_pinctrl_data.maps[ASPEED_IP_GFX] = map; + + node = of_parse_phandle(pdev->dev.of_node, "aspeed,external-nodes", 1); + if (node) { + map = syscon_node_to_regmap(node->parent); + if (IS_ERR(map)) { + dev_warn(&pdev->dev, "LHC parent is not a syscon, some mux configurations may fail\n"); + map = NULL; + } + } else { + dev_warn(&pdev->dev, "No LHC phandle found, some mux configurations may fail\n"); + map = NULL; + } + of_node_put(node); + aspeed_g5_pinctrl_data.maps[ASPEED_IP_LPC] = map; + return aspeed_pinctrl_probe(pdev, &aspeed_g5_pinctrl_desc, &aspeed_g5_pinctrl_data); } diff --git a/drivers/pinctrl/aspeed/pinctrl-aspeed.c b/drivers/pinctrl/aspeed/pinctrl-aspeed.c index 49aeba912531..782c5c97f853 100644 --- a/drivers/pinctrl/aspeed/pinctrl-aspeed.c +++ b/drivers/pinctrl/aspeed/pinctrl-aspeed.c @@ -14,6 +14,12 @@ #include "../core.h" #include "pinctrl-aspeed.h" +static const char *const aspeed_pinmux_ips[] = { + [ASPEED_IP_SCU] = "SCU", + [ASPEED_IP_GFX] = "GFX", + [ASPEED_IP_LPC] = "LPC", +}; + int aspeed_pinctrl_get_groups_count(struct pinctrl_dev *pctldev) { struct aspeed_pinctrl_data *pdata = pinctrl_dev_get_drvdata(pctldev); @@ -78,7 +84,8 @@ int aspeed_pinmux_get_fn_groups(struct pinctrl_dev *pctldev, static inline void aspeed_sig_desc_print_val( const struct aspeed_sig_desc *desc, bool enable, u32 rv) { - pr_debug("SCU%x[0x%08x]=0x%x, got 0x%x from 0x%08x\n", desc->reg, + pr_debug("Want %s%X[0x%08X]=0x%X, got 0x%X from 0x%08X\n", + aspeed_pinmux_ips[desc->ip], desc->reg, desc->mask, enable ? desc->enable : desc->disable, (rv & desc->mask) >> __ffs(desc->mask), rv); } @@ -88,10 +95,11 @@ static inline void aspeed_sig_desc_print_val( * * @desc: The signal descriptor of interest * @enabled: True to query the enabled state, false to query disabled state - * @regmap: The SCU regmap instance + * @regmap: The IP block's regmap instance * - * @return True if the descriptor's bitfield is configured to the state - * selected by @enabled, false otherwise + * @return 1 if the descriptor's bitfield is configured to the state + * selected by @enabled, 0 if not, and less than zero if an unrecoverable + * failure occurred * * Evaluation of descriptor state is non-trivial in that it is not a binary * outcome: The bitfields can be greater than one bit in size and thus can take @@ -99,14 +107,19 @@ static inline void aspeed_sig_desc_print_val( * descriptor (typically this means a different function to the one of interest * is enabled). Thus we must explicitly test for either condition as required. */ -static bool aspeed_sig_desc_eval(const struct aspeed_sig_desc *desc, +static int aspeed_sig_desc_eval(const struct aspeed_sig_desc *desc, bool enabled, struct regmap *map) { + int ret; unsigned int raw; u32 want; - if (regmap_read(map, desc->reg, &raw) < 0) - return false; + if (!map) + return -ENODEV; + + ret = regmap_read(map, desc->reg, &raw); + if (ret) + return ret; aspeed_sig_desc_print_val(desc, enabled, raw); want = enabled ? desc->enable : desc->disable; @@ -119,10 +132,10 @@ static bool aspeed_sig_desc_eval(const struct aspeed_sig_desc *desc, * * @expr: An expression controlling the signal for a mux function on a pin * @enabled: True to query the enabled state, false to query disabled state - * @regmap: The SCU regmap instance + * @maps: The list of regmap instances * - * @return True if the expression composed by @enabled evaluates true, false - * otherwise + * @return 1 if the expression composed by @enabled evaluates true, 0 if not, + * and less than zero if an unrecoverable failure occurred. * * A mux function is enabled or disabled if the function's signal expression * for each pin in the function's pin group evaluates true for the desired @@ -135,19 +148,21 @@ static bool aspeed_sig_desc_eval(const struct aspeed_sig_desc *desc, * neither the enabled nor disabled state. Thus we must explicitly test for * either condition as required. */ -static bool aspeed_sig_expr_eval(const struct aspeed_sig_expr *expr, - bool enabled, struct regmap *map) +static int aspeed_sig_expr_eval(const struct aspeed_sig_expr *expr, + bool enabled, struct regmap * const *maps) { int i; + int ret; for (i = 0; i < expr->ndescs; i++) { const struct aspeed_sig_desc *desc = &expr->descs[i]; - if (!aspeed_sig_desc_eval(desc, enabled, map)) - return false; + ret = aspeed_sig_desc_eval(desc, enabled, maps[desc->ip]); + if (ret <= 0) + return ret; } - return true; + return 1; } /** @@ -158,19 +173,24 @@ static bool aspeed_sig_expr_eval(const struct aspeed_sig_expr *expr, * configured * @enable: true to enable an function's signal through a pin's signal * expression, false to disable the function's signal - * @map: The SCU's regmap instance for pinmux register access. + * @maps: The list of regmap instances for pinmux register access. * - * @return true if the expression is configured as requested, false otherwise + * @return 0 if the expression is configured as requested and a negative error + * code otherwise */ -static bool aspeed_sig_expr_set(const struct aspeed_sig_expr *expr, - bool enable, struct regmap *map) +static int aspeed_sig_expr_set(const struct aspeed_sig_expr *expr, + bool enable, struct regmap * const *maps) { + int ret; int i; for (i = 0; i < expr->ndescs; i++) { - bool ret; const struct aspeed_sig_desc *desc = &expr->descs[i]; u32 pattern = enable ? desc->enable : desc->disable; + u32 val = (pattern << __ffs(desc->mask)); + + if (!maps[desc->ip]) + return -ENODEV; /* * Strap registers are configured in hardware or by early-boot @@ -179,64 +199,79 @@ static bool aspeed_sig_expr_set(const struct aspeed_sig_expr *expr, * deconfigured and is the reason we re-evaluate after writing * all descriptor bits. */ - if (desc->reg == HW_STRAP1 || desc->reg == HW_STRAP2) + if ((desc->reg == HW_STRAP1 || desc->reg == HW_STRAP2) && + desc->ip == ASPEED_IP_SCU) continue; - ret = regmap_update_bits(map, desc->reg, desc->mask, - pattern << __ffs(desc->mask)) == 0; + ret = regmap_update_bits(maps[desc->ip], desc->reg, + desc->mask, val); - if (!ret) + if (ret) return ret; } - return aspeed_sig_expr_eval(expr, enable, map); + ret = aspeed_sig_expr_eval(expr, enable, maps); + if (ret < 0) + return ret; + + if (!ret) + return -EPERM; + + return 0; } -static bool aspeed_sig_expr_enable(const struct aspeed_sig_expr *expr, - struct regmap *map) +static int aspeed_sig_expr_enable(const struct aspeed_sig_expr *expr, + struct regmap * const *maps) { - if (aspeed_sig_expr_eval(expr, true, map)) - return true; + int ret; + + ret = aspeed_sig_expr_eval(expr, true, maps); + if (ret < 0) + return ret; + + if (!ret) + return aspeed_sig_expr_set(expr, true, maps); - return aspeed_sig_expr_set(expr, true, map); + return 0; } -static bool aspeed_sig_expr_disable(const struct aspeed_sig_expr *expr, - struct regmap *map) +static int aspeed_sig_expr_disable(const struct aspeed_sig_expr *expr, + struct regmap * const *maps) { - if (!aspeed_sig_expr_eval(expr, true, map)) - return true; + int ret; + + ret = aspeed_sig_expr_eval(expr, true, maps); + if (ret < 0) + return ret; + + if (ret) + return aspeed_sig_expr_set(expr, false, maps); - return aspeed_sig_expr_set(expr, false, map); + return 0; } /** * Disable a signal on a pin by disabling all provided signal expressions. * * @exprs: The list of signal expressions (from a priority level on a pin) - * @map: The SCU's regmap instance for pinmux register access. + * @maps: The list of regmap instances for pinmux register access. * - * @return true if all expressions in the list are successfully disabled, false - * otherwise + * @return 0 if all expressions are disabled, otherwise a negative error code */ -static bool aspeed_disable_sig(const struct aspeed_sig_expr **exprs, - struct regmap *map) +static int aspeed_disable_sig(const struct aspeed_sig_expr **exprs, + struct regmap * const *maps) { - bool disabled = true; + int ret = 0; if (!exprs) return true; - while (*exprs) { - bool ret; - - ret = aspeed_sig_expr_disable(*exprs, map); - disabled = disabled && ret; - + while (*exprs && !ret) { + ret = aspeed_sig_expr_disable(*exprs, maps); exprs++; } - return disabled; + return ret; } /** @@ -330,6 +365,7 @@ int aspeed_pinmux_set_mux(struct pinctrl_dev *pctldev, unsigned int function, unsigned int group) { int i; + int ret; const struct aspeed_pinctrl_data *pdata = pinctrl_dev_get_drvdata(pctldev); const struct aspeed_pin_group *pgroup = &pdata->groups[group]; @@ -343,6 +379,8 @@ int aspeed_pinmux_set_mux(struct pinctrl_dev *pctldev, unsigned int function, const struct aspeed_sig_expr **funcs; const struct aspeed_sig_expr ***prios; + pr_debug("Muxing pin %d for %s\n", pin, pfunc->name); + if (!pdesc) return -EINVAL; @@ -358,8 +396,9 @@ int aspeed_pinmux_set_mux(struct pinctrl_dev *pctldev, unsigned int function, if (expr) break; - if (!aspeed_disable_sig(funcs, pdata->map)) - return -EPERM; + ret = aspeed_disable_sig(funcs, pdata->maps); + if (ret) + return ret; prios++; } @@ -377,8 +416,9 @@ int aspeed_pinmux_set_mux(struct pinctrl_dev *pctldev, unsigned int function, return -ENXIO; } - if (!aspeed_sig_expr_enable(expr, pdata->map)) - return -EPERM; + ret = aspeed_sig_expr_enable(expr, pdata->maps); + if (ret) + return ret; } return 0; @@ -414,6 +454,7 @@ int aspeed_gpio_request_enable(struct pinctrl_dev *pctldev, struct pinctrl_gpio_range *range, unsigned int offset) { + int ret; const struct aspeed_pinctrl_data *pdata = pinctrl_dev_get_drvdata(pctldev); const struct aspeed_pin_desc *pdesc = pdata->pins[offset].drv_data; @@ -432,8 +473,9 @@ int aspeed_gpio_request_enable(struct pinctrl_dev *pctldev, if (aspeed_gpio_in_exprs(funcs)) break; - if (!aspeed_disable_sig(funcs, pdata->map)) - return -EPERM; + ret = aspeed_disable_sig(funcs, pdata->maps); + if (ret) + return ret; prios++; } @@ -462,10 +504,7 @@ int aspeed_gpio_request_enable(struct pinctrl_dev *pctldev, * If GPIO is not the lowest priority signal type, assume there is only * one expression defined to enable the GPIO function */ - if (!aspeed_sig_expr_enable(expr, pdata->map)) - return -EPERM; - - return 0; + return aspeed_sig_expr_enable(expr, pdata->maps); } int aspeed_pinctrl_probe(struct platform_device *pdev, @@ -481,10 +520,10 @@ int aspeed_pinctrl_probe(struct platform_device *pdev, return -ENODEV; } - pdata->map = syscon_node_to_regmap(parent->of_node); - if (IS_ERR(pdata->map)) { + pdata->maps[ASPEED_IP_SCU] = syscon_node_to_regmap(parent->of_node); + if (IS_ERR(pdata->maps[ASPEED_IP_SCU])) { dev_err(&pdev->dev, "No regmap for syscon pincontroller parent\n"); - return PTR_ERR(pdata->map); + return PTR_ERR(pdata->maps[ASPEED_IP_SCU]); } pctl = pinctrl_register(pdesc, &pdev->dev, pdata); diff --git a/drivers/pinctrl/aspeed/pinctrl-aspeed.h b/drivers/pinctrl/aspeed/pinctrl-aspeed.h index 3e72ef8c54bf..0e93cbf2ff33 100644 --- a/drivers/pinctrl/aspeed/pinctrl-aspeed.h +++ b/drivers/pinctrl/aspeed/pinctrl-aspeed.h @@ -232,6 +232,11 @@ * group. */ +#define ASPEED_IP_SCU 0 +#define ASPEED_IP_GFX 1 +#define ASPEED_IP_LPC 2 +#define ASPEED_NR_PINMUX_IPS 3 + /* * The "Multi-function Pins Mapping and Control" table in the SoC datasheet * references registers by the device/offset mnemonic. The register macros @@ -261,7 +266,9 @@ * A signal descriptor, which describes the register, bits and the * enable/disable values that should be compared or written. * - * @reg: The register offset from base in bytes + * @ip: The IP block identifier, used as an index into the regmap array in + * struct aspeed_pinctrl_data + * @reg: The register offset with respect to the base address of the IP block * @mask: The mask to apply to the register. The lowest set bit of the mask is * used to derive the shift value. * @enable: The value that enables the function. Value should be in the LSBs, @@ -270,6 +277,7 @@ * LSBs, not at the position of the mask. */ struct aspeed_sig_desc { + unsigned int ip; unsigned int reg; u32 mask; u32 enable; @@ -313,24 +321,30 @@ struct aspeed_pin_desc { /* Macro hell */ +#define SIG_DESC_IP_BIT(ip, reg, idx, val) \ + { ip, reg, BIT_MASK(idx), val, (((val) + 1) & 1) } + /** - * Short-hand macro for describing a configuration enabled by the state of one - * bit. The disable value is derived. + * Short-hand macro for describing an SCU descriptor enabled by the state of + * one bit. The disable value is derived. * * @reg: The signal's associated register, offset from base * @idx: The signal's bit index in the register * @val: The value (0 or 1) that enables the function */ #define SIG_DESC_BIT(reg, idx, val) \ - { reg, BIT_MASK(idx), val, (((val) + 1) & 1) } + SIG_DESC_IP_BIT(ASPEED_IP_SCU, reg, idx, val) + +#define SIG_DESC_IP_SET(ip, reg, idx) SIG_DESC_IP_BIT(ip, reg, idx, 1) /** - * A further short-hand macro describing a configuration enabled with a set bit. + * A further short-hand macro expanding to an SCU descriptor enabled by a set + * bit. * - * @reg: The configuration's associated register, offset from base - * @idx: The configuration's bit index in the register + * @reg: The register, offset from base + * @idx: The bit index in the register */ -#define SIG_DESC_SET(reg, idx) SIG_DESC_BIT(reg, idx, 1) +#define SIG_DESC_SET(reg, idx) SIG_DESC_IP_BIT(ASPEED_IP_SCU, reg, idx, 1) #define SIG_DESC_LIST_SYM(sig, func) sig_descs_ ## sig ## _ ## func #define SIG_DESC_LIST_DECL(sig, func, ...) \ @@ -500,7 +514,7 @@ struct aspeed_pin_desc { MS_PIN_DECL_(pin, SIG_EXPR_LIST_PTR(gpio)) struct aspeed_pinctrl_data { - struct regmap *map; + struct regmap *maps[ASPEED_NR_PINMUX_IPS]; const struct pinctrl_pin_desc *pins; const unsigned int npins; |
