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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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pinctrl: sh-pfc: Updates for v5.7
- Improve checks for pinctrl table validation, - Miscellaneous cleanups. -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQQ9qaHoIs/1I4cXmEiKwlD9ZEnxcAUCXlZJUwAKCRCKwlD9ZEnx cLuOAP906YjGhEDgvo86DhoszifICYPK1DyP4F0R13U8hj9cewD/fOYLKaE+78BS MY/VQKiDvpHbxn7XbQKWDY5MxS0L6gI= =vJfT -----END PGP SIGNATURE----- Merge tag 'sh-pfc-for-v5.7-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into devel pinctrl: sh-pfc: Updates for v5.7 - Improve checks for pinctrl table validation, - Miscellaneous cleanups.
This commit is contained in:
Linus Walleij
commit
819e8f804a
3 changed files with 248 additions and 68 deletions
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@ -26,8 +26,8 @@ config PINCTRL_SH_PFC
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select PINCTRL_PFC_R8A7792 if ARCH_R8A7792
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select PINCTRL_PFC_R8A7793 if ARCH_R8A7793
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select PINCTRL_PFC_R8A7794 if ARCH_R8A7794
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select PINCTRL_PFC_R8A77950 if ARCH_R8A77950 || ARCH_R8A7795
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select PINCTRL_PFC_R8A77951 if ARCH_R8A77951 || ARCH_R8A7795
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select PINCTRL_PFC_R8A77950 if ARCH_R8A77950
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select PINCTRL_PFC_R8A77951 if ARCH_R8A77951
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select PINCTRL_PFC_R8A77960 if ARCH_R8A77960
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select PINCTRL_PFC_R8A77961 if ARCH_R8A77961
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select PINCTRL_PFC_R8A77965 if ARCH_R8A77965
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@ -726,6 +726,27 @@ static int sh_pfc_suspend_init(struct sh_pfc *pfc) { return 0; }
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#endif /* CONFIG_PM_SLEEP && CONFIG_ARM_PSCI_FW */
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#ifdef DEBUG
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#define SH_PFC_MAX_REGS 300
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#define SH_PFC_MAX_ENUMS 3000
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static unsigned int sh_pfc_errors __initdata = 0;
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static unsigned int sh_pfc_warnings __initdata = 0;
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static u32 *sh_pfc_regs __initdata = NULL;
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static u32 sh_pfc_num_regs __initdata = 0;
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static u16 *sh_pfc_enums __initdata = NULL;
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static u32 sh_pfc_num_enums __initdata = 0;
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#define sh_pfc_err(fmt, ...) \
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do { \
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pr_err("%s: " fmt, drvname, ##__VA_ARGS__); \
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sh_pfc_errors++; \
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} while (0)
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#define sh_pfc_warn(fmt, ...) \
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do { \
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pr_warn("%s: " fmt, drvname, ##__VA_ARGS__); \
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sh_pfc_warnings++; \
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} while (0)
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static bool __init is0s(const u16 *enum_ids, unsigned int n)
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{
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unsigned int i;
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@ -737,77 +758,181 @@ static bool __init is0s(const u16 *enum_ids, unsigned int n)
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return true;
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}
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static unsigned int sh_pfc_errors __initdata = 0;
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static unsigned int sh_pfc_warnings __initdata = 0;
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static bool __init same_name(const char *a, const char *b)
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{
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if (!a || !b)
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return false;
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return !strcmp(a, b);
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}
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static void __init sh_pfc_check_reg(const char *drvname, u32 reg)
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{
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unsigned int i;
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for (i = 0; i < sh_pfc_num_regs; i++)
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if (reg == sh_pfc_regs[i]) {
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sh_pfc_err("reg 0x%x conflict\n", reg);
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return;
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}
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if (sh_pfc_num_regs == SH_PFC_MAX_REGS) {
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pr_warn_once("%s: Please increase SH_PFC_MAX_REGS\n", drvname);
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return;
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}
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sh_pfc_regs[sh_pfc_num_regs++] = reg;
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}
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static int __init sh_pfc_check_enum(const char *drvname, u16 enum_id)
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{
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unsigned int i;
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for (i = 0; i < sh_pfc_num_enums; i++) {
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if (enum_id == sh_pfc_enums[i])
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return -EINVAL;
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}
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if (sh_pfc_num_enums == SH_PFC_MAX_ENUMS) {
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pr_warn_once("%s: Please increase SH_PFC_MAX_ENUMS\n", drvname);
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return 0;
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}
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sh_pfc_enums[sh_pfc_num_enums++] = enum_id;
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return 0;
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}
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static void __init sh_pfc_check_reg_enums(const char *drvname, u32 reg,
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const u16 *enums, unsigned int n)
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{
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unsigned int i;
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for (i = 0; i < n; i++) {
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if (enums[i] && sh_pfc_check_enum(drvname, enums[i]))
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sh_pfc_err("reg 0x%x enum_id %u conflict\n", reg,
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enums[i]);
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}
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}
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static void __init sh_pfc_check_pin(const struct sh_pfc_soc_info *info,
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u32 reg, unsigned int pin)
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{
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const char *drvname = info->name;
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unsigned int i;
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if (pin == SH_PFC_PIN_NONE)
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return;
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for (i = 0; i < info->nr_pins; i++) {
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if (pin == info->pins[i].pin)
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return;
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}
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sh_pfc_err("reg 0x%x: pin %u not found\n", reg, pin);
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}
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static void __init sh_pfc_check_cfg_reg(const char *drvname,
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const struct pinmux_cfg_reg *cfg_reg)
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{
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unsigned int i, n, rw, fw;
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sh_pfc_check_reg(drvname, cfg_reg->reg);
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if (cfg_reg->field_width) {
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/* Checked at build time */
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return;
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n = cfg_reg->reg_width / cfg_reg->field_width;
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/* Skip field checks (done at build time) */
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goto check_enum_ids;
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}
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for (i = 0, n = 0, rw = 0; (fw = cfg_reg->var_field_width[i]); i++) {
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if (fw > 3 && is0s(&cfg_reg->enum_ids[n], 1 << fw)) {
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pr_warn("%s: reg 0x%x: reserved field [%u:%u] can be split to reduce table size\n",
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drvname, cfg_reg->reg, rw, rw + fw - 1);
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sh_pfc_warnings++;
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}
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if (fw > 3 && is0s(&cfg_reg->enum_ids[n], 1 << fw))
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sh_pfc_warn("reg 0x%x: reserved field [%u:%u] can be split to reduce table size\n",
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cfg_reg->reg, rw, rw + fw - 1);
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n += 1 << fw;
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rw += fw;
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}
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if (rw != cfg_reg->reg_width) {
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pr_err("%s: reg 0x%x: var_field_width declares %u instead of %u bits\n",
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drvname, cfg_reg->reg, rw, cfg_reg->reg_width);
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sh_pfc_errors++;
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}
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if (rw != cfg_reg->reg_width)
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sh_pfc_err("reg 0x%x: var_field_width declares %u instead of %u bits\n",
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cfg_reg->reg, rw, cfg_reg->reg_width);
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if (n != cfg_reg->nr_enum_ids) {
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pr_err("%s: reg 0x%x: enum_ids[] has %u instead of %u values\n",
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drvname, cfg_reg->reg, cfg_reg->nr_enum_ids, n);
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sh_pfc_errors++;
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if (n != cfg_reg->nr_enum_ids)
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sh_pfc_err("reg 0x%x: enum_ids[] has %u instead of %u values\n",
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cfg_reg->reg, cfg_reg->nr_enum_ids, n);
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check_enum_ids:
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sh_pfc_check_reg_enums(drvname, cfg_reg->reg, cfg_reg->enum_ids, n);
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}
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static void __init sh_pfc_check_drive_reg(const struct sh_pfc_soc_info *info,
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const struct pinmux_drive_reg *drive)
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{
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const char *drvname = info->name;
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unsigned long seen = 0, mask;
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unsigned int i;
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sh_pfc_check_reg(info->name, drive->reg);
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for (i = 0; i < ARRAY_SIZE(drive->fields); i++) {
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const struct pinmux_drive_reg_field *field = &drive->fields[i];
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if (!field->pin && !field->offset && !field->size)
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continue;
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mask = GENMASK(field->offset + field->size, field->offset);
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if (mask & seen)
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sh_pfc_err("drive_reg 0x%x: field %u overlap\n",
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drive->reg, i);
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seen |= mask;
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sh_pfc_check_pin(info, drive->reg, field->pin);
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}
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}
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static void __init sh_pfc_check_bias_reg(const struct sh_pfc_soc_info *info,
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const struct pinmux_bias_reg *bias)
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{
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unsigned int i;
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sh_pfc_check_reg(info->name, bias->puen);
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if (bias->pud)
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sh_pfc_check_reg(info->name, bias->pud);
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for (i = 0; i < ARRAY_SIZE(bias->pins); i++)
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sh_pfc_check_pin(info, bias->puen, bias->pins[i]);
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}
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static void __init sh_pfc_check_info(const struct sh_pfc_soc_info *info)
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{
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const struct sh_pfc_function *func;
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const char *drvname = info->name;
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unsigned int *refcnts;
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unsigned int i, j, k;
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pr_info("Checking %s\n", drvname);
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sh_pfc_num_regs = 0;
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sh_pfc_num_enums = 0;
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/* Check pins */
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for (i = 0; i < info->nr_pins; i++) {
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const struct sh_pfc_pin *pin = &info->pins[i];
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if (!pin->name) {
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sh_pfc_err("empty pin %u\n", i);
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continue;
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}
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for (j = 0; j < i; j++) {
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if (!strcmp(info->pins[i].name, info->pins[j].name)) {
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pr_err("%s: pin %s/%s: name conflict\n",
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drvname, info->pins[i].name,
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info->pins[j].name);
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sh_pfc_errors++;
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}
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const struct sh_pfc_pin *pin2 = &info->pins[j];
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if (info->pins[i].pin != (u16)-1 &&
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info->pins[i].pin == info->pins[j].pin) {
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pr_err("%s: pin %s/%s: pin %u conflict\n",
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drvname, info->pins[i].name,
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info->pins[j].name, info->pins[i].pin);
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sh_pfc_errors++;
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}
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if (same_name(pin->name, pin2->name))
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sh_pfc_err("pin %s: name conflict\n",
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pin->name);
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if (info->pins[i].enum_id &&
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info->pins[i].enum_id == info->pins[j].enum_id) {
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pr_err("%s: pin %s/%s: enum_id %u conflict\n",
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drvname, info->pins[i].name,
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info->pins[j].name,
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info->pins[i].enum_id);
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sh_pfc_errors++;
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}
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if (pin->pin != (u16)-1 && pin->pin == pin2->pin)
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sh_pfc_err("pin %s/%s: pin %u conflict\n",
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pin->name, pin2->name, pin->pin);
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if (pin->enum_id && pin->enum_id == pin2->enum_id)
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sh_pfc_err("pin %s/%s: enum_id %u conflict\n",
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pin->name, pin2->name,
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pin->enum_id);
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}
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}
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@ -817,45 +942,49 @@ static void __init sh_pfc_check_info(const struct sh_pfc_soc_info *info)
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return;
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for (i = 0; i < info->nr_functions; i++) {
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func = &info->functions[i];
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const struct sh_pfc_function *func = &info->functions[i];
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if (!func->name) {
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pr_err("%s: empty function %u\n", drvname, i);
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sh_pfc_errors++;
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sh_pfc_err("empty function %u\n", i);
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continue;
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}
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for (j = 0; j < i; j++) {
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if (same_name(func->name, info->functions[j].name))
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sh_pfc_err("function %s: name conflict\n",
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func->name);
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}
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for (j = 0; j < func->nr_groups; j++) {
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for (k = 0; k < info->nr_groups; k++) {
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if (info->groups[k].name &&
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!strcmp(func->groups[j],
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info->groups[k].name)) {
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if (same_name(func->groups[j],
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info->groups[k].name)) {
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refcnts[k]++;
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break;
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}
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}
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if (k == info->nr_groups) {
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pr_err("%s: function %s: group %s not found\n",
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drvname, func->name, func->groups[j]);
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sh_pfc_errors++;
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}
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if (k == info->nr_groups)
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sh_pfc_err("function %s: group %s not found\n",
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func->name, func->groups[j]);
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}
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}
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for (i = 0; i < info->nr_groups; i++) {
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if (!info->groups[i].name) {
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pr_err("%s: empty group %u\n", drvname, i);
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sh_pfc_errors++;
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const struct sh_pfc_pin_group *group = &info->groups[i];
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if (!group->name) {
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sh_pfc_err("empty group %u\n", i);
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continue;
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}
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if (!refcnts[i]) {
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pr_err("%s: orphan group %s\n", drvname,
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info->groups[i].name);
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sh_pfc_errors++;
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} else if (refcnts[i] > 1) {
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pr_warn("%s: group %s referenced by %u functions\n",
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drvname, info->groups[i].name, refcnts[i]);
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sh_pfc_warnings++;
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for (j = 0; j < i; j++) {
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if (same_name(group->name, info->groups[j].name))
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sh_pfc_err("group %s: name conflict\n",
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group->name);
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}
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if (!refcnts[i])
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sh_pfc_err("orphan group %s\n", group->name);
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else if (refcnts[i] > 1)
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sh_pfc_warn("group %s referenced by %u functions\n",
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group->name, refcnts[i]);
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}
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kfree(refcnts);
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@ -863,12 +992,62 @@ static void __init sh_pfc_check_info(const struct sh_pfc_soc_info *info)
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/* Check config register descriptions */
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for (i = 0; info->cfg_regs && info->cfg_regs[i].reg; i++)
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sh_pfc_check_cfg_reg(drvname, &info->cfg_regs[i]);
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/* Check drive strength registers */
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for (i = 0; info->drive_regs && info->drive_regs[i].reg; i++)
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sh_pfc_check_drive_reg(info, &info->drive_regs[i]);
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/* Check bias registers */
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for (i = 0; info->bias_regs && info->bias_regs[i].puen; i++)
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sh_pfc_check_bias_reg(info, &info->bias_regs[i]);
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/* Check ioctrl registers */
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for (i = 0; info->ioctrl_regs && info->ioctrl_regs[i].reg; i++)
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sh_pfc_check_reg(drvname, info->ioctrl_regs[i].reg);
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/* Check data registers */
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for (i = 0; info->data_regs && info->data_regs[i].reg; i++) {
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sh_pfc_check_reg(drvname, info->data_regs[i].reg);
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sh_pfc_check_reg_enums(drvname, info->data_regs[i].reg,
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info->data_regs[i].enum_ids,
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info->data_regs[i].reg_width);
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}
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#ifdef CONFIG_PINCTRL_SH_FUNC_GPIO
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/* Check function GPIOs */
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for (i = 0; i < info->nr_func_gpios; i++) {
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const struct pinmux_func *func = &info->func_gpios[i];
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if (!func->name) {
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sh_pfc_err("empty function gpio %u\n", i);
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continue;
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}
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for (j = 0; j < i; j++) {
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if (same_name(func->name, info->func_gpios[j].name))
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sh_pfc_err("func_gpio %s: name conflict\n",
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func->name);
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}
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if (sh_pfc_check_enum(drvname, func->enum_id))
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sh_pfc_err("%s enum_id %u conflict\n", func->name,
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func->enum_id);
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}
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#endif
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}
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static void __init sh_pfc_check_driver(const struct platform_driver *pdrv)
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{
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unsigned int i;
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sh_pfc_regs = kcalloc(SH_PFC_MAX_REGS, sizeof(*sh_pfc_regs),
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GFP_KERNEL);
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if (!sh_pfc_regs)
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return;
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sh_pfc_enums = kcalloc(SH_PFC_MAX_ENUMS, sizeof(*sh_pfc_enums),
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GFP_KERNEL);
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if (!sh_pfc_enums)
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goto free_regs;
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pr_warn("Checking builtin pinmux tables\n");
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|
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for (i = 0; pdrv->id_table[i].name[0]; i++)
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|
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@ -881,6 +1060,10 @@ static void __init sh_pfc_check_driver(const struct platform_driver *pdrv)
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pr_warn("Detected %u errors and %u warnings\n", sh_pfc_errors,
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sh_pfc_warnings);
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kfree(sh_pfc_enums);
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free_regs:
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kfree(sh_pfc_regs);
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}
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#else /* !DEBUG */
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||||
|
|
|
|||
|
|
@ -205,14 +205,11 @@ static int gpio_pin_to_irq(struct gpio_chip *gc, unsigned offset)
|
|||
|
||||
for (k = 0; gpios[k] >= 0; k++) {
|
||||
if (gpios[k] == offset)
|
||||
goto found;
|
||||
return pfc->irqs[i];
|
||||
}
|
||||
}
|
||||
|
||||
return 0;
|
||||
|
||||
found:
|
||||
return pfc->irqs[i];
|
||||
}
|
||||
|
||||
static int gpio_pin_setup(struct sh_pfc_chip *chip)
|
||||
|
|
|
|||
Loading…
Reference in a new issue