Commit 63858ac3 authored by Linus Torvalds's avatar Linus Torvalds

Merge tag 'pinctrl-v5.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin control fixes from Linus Walleij:
 "These are all driver fixes, the Qualcomm stuff is the most widely used
  and important:

   - The main matter is a complicated fixup for the Qualcomm deep sleep
     states.

     This manifests in how interrupts get handled or in some cases not
     handled in cooperation with the PDC (Power Domain Controller). It's
     one of these really hardcore bug fixes that signifies high maturity
     of the platform.

   - Fix a register layout problem in the JZ4760 driver

   - Fix a register offset in the Aspeed G6 driver

   - Fix a compiler warning in the Nomadik driver

   - Fix a fallback code path in the mediatek driver"

* tag 'pinctrl-v5.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl: qcom: Don't clear pending interrupts when enabling
  pinctrl: qcom: Properly clear "intr_ack_high" interrupts when unmasking
  pinctrl: qcom: No need to read-modify-write the interrupt status
  pinctrl: qcom: Allow SoCs to specify a GPIO function that's not 0
  pinctrl: mediatek: Fix fallback call path
  pinctrl: nomadik: Remove unused variable in nmk_gpio_dbg_show_one
  pinctrl: aspeed: g6: Fix PWMG0 pinctrl setting
  pinctrl: ingenic: Rename registers from JZ4760_GPIO_* to JZ4770_GPIO_*
  pinctrl: ingenic: Fix JZ4760 support
parents 9791581c cf9d052a
......@@ -347,7 +347,7 @@ FUNC_GROUP_DECL(RMII4, F24, E23, E24, E25, C25, C24, B26, B25, B24);
#define D22 40
SIG_EXPR_LIST_DECL_SESG(D22, SD1CLK, SD1, SIG_DESC_SET(SCU414, 8));
SIG_EXPR_LIST_DECL_SEMG(D22, PWM8, PWM8G0, PWM8, SIG_DESC_SET(SCU414, 8));
SIG_EXPR_LIST_DECL_SEMG(D22, PWM8, PWM8G0, PWM8, SIG_DESC_SET(SCU4B4, 8));
PIN_DECL_2(D22, GPIOF0, SD1CLK, PWM8);
GROUP_DECL(PWM8G0, D22);
......
......@@ -920,6 +920,10 @@ int mtk_pinconf_adv_pull_set(struct mtk_pinctrl *hw,
err = hw->soc->bias_set(hw, desc, pullup);
if (err)
return err;
} else if (hw->soc->bias_set_combo) {
err = hw->soc->bias_set_combo(hw, desc, pullup, arg);
if (err)
return err;
} else {
return -ENOTSUPP;
}
......
......@@ -949,7 +949,6 @@ static void nmk_gpio_dbg_show_one(struct seq_file *s,
} else {
int irq = chip->to_irq(chip, offset);
const int pullidx = pull ? 1 : 0;
bool wake;
int val;
static const char * const pulls[] = {
"none ",
......
......@@ -37,11 +37,11 @@
#define JZ4740_GPIO_TRIG 0x70
#define JZ4740_GPIO_FLAG 0x80
#define JZ4760_GPIO_INT 0x10
#define JZ4760_GPIO_PAT1 0x30
#define JZ4760_GPIO_PAT0 0x40
#define JZ4760_GPIO_FLAG 0x50
#define JZ4760_GPIO_PEN 0x70
#define JZ4770_GPIO_INT 0x10
#define JZ4770_GPIO_PAT1 0x30
#define JZ4770_GPIO_PAT0 0x40
#define JZ4770_GPIO_FLAG 0x50
#define JZ4770_GPIO_PEN 0x70
#define X1830_GPIO_PEL 0x110
#define X1830_GPIO_PEH 0x120
......@@ -1688,8 +1688,8 @@ static inline bool ingenic_gpio_get_value(struct ingenic_gpio_chip *jzgc,
static void ingenic_gpio_set_value(struct ingenic_gpio_chip *jzgc,
u8 offset, int value)
{
if (jzgc->jzpc->info->version >= ID_JZ4760)
ingenic_gpio_set_bit(jzgc, JZ4760_GPIO_PAT0, offset, !!value);
if (jzgc->jzpc->info->version >= ID_JZ4770)
ingenic_gpio_set_bit(jzgc, JZ4770_GPIO_PAT0, offset, !!value);
else
ingenic_gpio_set_bit(jzgc, JZ4740_GPIO_DATA, offset, !!value);
}
......@@ -1718,9 +1718,9 @@ static void irq_set_type(struct ingenic_gpio_chip *jzgc,
break;
}
if (jzgc->jzpc->info->version >= ID_JZ4760) {
reg1 = JZ4760_GPIO_PAT1;
reg2 = JZ4760_GPIO_PAT0;
if (jzgc->jzpc->info->version >= ID_JZ4770) {
reg1 = JZ4770_GPIO_PAT1;
reg2 = JZ4770_GPIO_PAT0;
} else {
reg1 = JZ4740_GPIO_TRIG;
reg2 = JZ4740_GPIO_DIR;
......@@ -1758,8 +1758,8 @@ static void ingenic_gpio_irq_enable(struct irq_data *irqd)
struct ingenic_gpio_chip *jzgc = gpiochip_get_data(gc);
int irq = irqd->hwirq;
if (jzgc->jzpc->info->version >= ID_JZ4760)
ingenic_gpio_set_bit(jzgc, JZ4760_GPIO_INT, irq, true);
if (jzgc->jzpc->info->version >= ID_JZ4770)
ingenic_gpio_set_bit(jzgc, JZ4770_GPIO_INT, irq, true);
else
ingenic_gpio_set_bit(jzgc, JZ4740_GPIO_SELECT, irq, true);
......@@ -1774,8 +1774,8 @@ static void ingenic_gpio_irq_disable(struct irq_data *irqd)
ingenic_gpio_irq_mask(irqd);
if (jzgc->jzpc->info->version >= ID_JZ4760)
ingenic_gpio_set_bit(jzgc, JZ4760_GPIO_INT, irq, false);
if (jzgc->jzpc->info->version >= ID_JZ4770)
ingenic_gpio_set_bit(jzgc, JZ4770_GPIO_INT, irq, false);
else
ingenic_gpio_set_bit(jzgc, JZ4740_GPIO_SELECT, irq, false);
}
......@@ -1799,8 +1799,8 @@ static void ingenic_gpio_irq_ack(struct irq_data *irqd)
irq_set_type(jzgc, irq, IRQ_TYPE_LEVEL_HIGH);
}
if (jzgc->jzpc->info->version >= ID_JZ4760)
ingenic_gpio_set_bit(jzgc, JZ4760_GPIO_FLAG, irq, false);
if (jzgc->jzpc->info->version >= ID_JZ4770)
ingenic_gpio_set_bit(jzgc, JZ4770_GPIO_FLAG, irq, false);
else
ingenic_gpio_set_bit(jzgc, JZ4740_GPIO_DATA, irq, true);
}
......@@ -1856,8 +1856,8 @@ static void ingenic_gpio_irq_handler(struct irq_desc *desc)
chained_irq_enter(irq_chip, desc);
if (jzgc->jzpc->info->version >= ID_JZ4760)
flag = ingenic_gpio_read_reg(jzgc, JZ4760_GPIO_FLAG);
if (jzgc->jzpc->info->version >= ID_JZ4770)
flag = ingenic_gpio_read_reg(jzgc, JZ4770_GPIO_FLAG);
else
flag = ingenic_gpio_read_reg(jzgc, JZ4740_GPIO_FLAG);
......@@ -1938,9 +1938,9 @@ static int ingenic_gpio_get_direction(struct gpio_chip *gc, unsigned int offset)
struct ingenic_pinctrl *jzpc = jzgc->jzpc;
unsigned int pin = gc->base + offset;
if (jzpc->info->version >= ID_JZ4760) {
if (ingenic_get_pin_config(jzpc, pin, JZ4760_GPIO_INT) ||
ingenic_get_pin_config(jzpc, pin, JZ4760_GPIO_PAT1))
if (jzpc->info->version >= ID_JZ4770) {
if (ingenic_get_pin_config(jzpc, pin, JZ4770_GPIO_INT) ||
ingenic_get_pin_config(jzpc, pin, JZ4770_GPIO_PAT1))
return GPIO_LINE_DIRECTION_IN;
return GPIO_LINE_DIRECTION_OUT;
}
......@@ -1991,20 +1991,20 @@ static int ingenic_pinmux_set_pin_fn(struct ingenic_pinctrl *jzpc,
'A' + offt, idx, func);
if (jzpc->info->version >= ID_X1000) {
ingenic_shadow_config_pin(jzpc, pin, JZ4760_GPIO_INT, false);
ingenic_shadow_config_pin(jzpc, pin, JZ4770_GPIO_INT, false);
ingenic_shadow_config_pin(jzpc, pin, GPIO_MSK, false);
ingenic_shadow_config_pin(jzpc, pin, JZ4760_GPIO_PAT1, func & 0x2);
ingenic_shadow_config_pin(jzpc, pin, JZ4760_GPIO_PAT0, func & 0x1);
ingenic_shadow_config_pin(jzpc, pin, JZ4770_GPIO_PAT1, func & 0x2);
ingenic_shadow_config_pin(jzpc, pin, JZ4770_GPIO_PAT0, func & 0x1);
ingenic_shadow_config_pin_load(jzpc, pin);
} else if (jzpc->info->version >= ID_JZ4760) {
ingenic_config_pin(jzpc, pin, JZ4760_GPIO_INT, false);
} else if (jzpc->info->version >= ID_JZ4770) {
ingenic_config_pin(jzpc, pin, JZ4770_GPIO_INT, false);
ingenic_config_pin(jzpc, pin, GPIO_MSK, false);
ingenic_config_pin(jzpc, pin, JZ4760_GPIO_PAT1, func & 0x2);
ingenic_config_pin(jzpc, pin, JZ4760_GPIO_PAT0, func & 0x1);
ingenic_config_pin(jzpc, pin, JZ4770_GPIO_PAT1, func & 0x2);
ingenic_config_pin(jzpc, pin, JZ4770_GPIO_PAT0, func & 0x1);
} else {
ingenic_config_pin(jzpc, pin, JZ4740_GPIO_FUNC, true);
ingenic_config_pin(jzpc, pin, JZ4740_GPIO_TRIG, func & 0x2);
ingenic_config_pin(jzpc, pin, JZ4740_GPIO_SELECT, func > 0);
ingenic_config_pin(jzpc, pin, JZ4740_GPIO_SELECT, func & 0x1);
}
return 0;
......@@ -2057,14 +2057,14 @@ static int ingenic_pinmux_gpio_set_direction(struct pinctrl_dev *pctldev,
'A' + offt, idx, input ? "in" : "out");
if (jzpc->info->version >= ID_X1000) {
ingenic_shadow_config_pin(jzpc, pin, JZ4760_GPIO_INT, false);
ingenic_shadow_config_pin(jzpc, pin, JZ4770_GPIO_INT, false);
ingenic_shadow_config_pin(jzpc, pin, GPIO_MSK, true);
ingenic_shadow_config_pin(jzpc, pin, JZ4760_GPIO_PAT1, input);
ingenic_shadow_config_pin(jzpc, pin, JZ4770_GPIO_PAT1, input);
ingenic_shadow_config_pin_load(jzpc, pin);
} else if (jzpc->info->version >= ID_JZ4760) {
ingenic_config_pin(jzpc, pin, JZ4760_GPIO_INT, false);
} else if (jzpc->info->version >= ID_JZ4770) {
ingenic_config_pin(jzpc, pin, JZ4770_GPIO_INT, false);
ingenic_config_pin(jzpc, pin, GPIO_MSK, true);
ingenic_config_pin(jzpc, pin, JZ4760_GPIO_PAT1, input);
ingenic_config_pin(jzpc, pin, JZ4770_GPIO_PAT1, input);
} else {
ingenic_config_pin(jzpc, pin, JZ4740_GPIO_SELECT, false);
ingenic_config_pin(jzpc, pin, JZ4740_GPIO_DIR, !input);
......@@ -2091,8 +2091,8 @@ static int ingenic_pinconf_get(struct pinctrl_dev *pctldev,
unsigned int offt = pin / PINS_PER_GPIO_CHIP;
bool pull;
if (jzpc->info->version >= ID_JZ4760)
pull = !ingenic_get_pin_config(jzpc, pin, JZ4760_GPIO_PEN);
if (jzpc->info->version >= ID_JZ4770)
pull = !ingenic_get_pin_config(jzpc, pin, JZ4770_GPIO_PEN);
else
pull = !ingenic_get_pin_config(jzpc, pin, JZ4740_GPIO_PULL_DIS);
......@@ -2141,8 +2141,8 @@ static void ingenic_set_bias(struct ingenic_pinctrl *jzpc,
REG_SET(X1830_GPIO_PEH), bias << idxh);
}
} else if (jzpc->info->version >= ID_JZ4760) {
ingenic_config_pin(jzpc, pin, JZ4760_GPIO_PEN, !bias);
} else if (jzpc->info->version >= ID_JZ4770) {
ingenic_config_pin(jzpc, pin, JZ4770_GPIO_PEN, !bias);
} else {
ingenic_config_pin(jzpc, pin, JZ4740_GPIO_PULL_DIS, !bias);
}
......@@ -2151,8 +2151,8 @@ static void ingenic_set_bias(struct ingenic_pinctrl *jzpc,
static void ingenic_set_output_level(struct ingenic_pinctrl *jzpc,
unsigned int pin, bool high)
{
if (jzpc->info->version >= ID_JZ4760)
ingenic_config_pin(jzpc, pin, JZ4760_GPIO_PAT0, high);
if (jzpc->info->version >= ID_JZ4770)
ingenic_config_pin(jzpc, pin, JZ4770_GPIO_PAT0, high);
else
ingenic_config_pin(jzpc, pin, JZ4740_GPIO_DATA, high);
}
......
......@@ -51,6 +51,7 @@
* @dual_edge_irqs: Bitmap of irqs that need sw emulated dual edge
* detection.
* @skip_wake_irqs: Skip IRQs that are handled by wakeup interrupt controller
* @disabled_for_mux: These IRQs were disabled because we muxed away.
* @soc: Reference to soc_data of platform specific data.
* @regs: Base addresses for the TLMM tiles.
* @phys_base: Physical base address
......@@ -72,6 +73,7 @@ struct msm_pinctrl {
DECLARE_BITMAP(dual_edge_irqs, MAX_NR_GPIO);
DECLARE_BITMAP(enabled_irqs, MAX_NR_GPIO);
DECLARE_BITMAP(skip_wake_irqs, MAX_NR_GPIO);
DECLARE_BITMAP(disabled_for_mux, MAX_NR_GPIO);
const struct msm_pinctrl_soc_data *soc;
void __iomem *regs[MAX_NR_TILES];
......@@ -96,6 +98,14 @@ MSM_ACCESSOR(intr_cfg)
MSM_ACCESSOR(intr_status)
MSM_ACCESSOR(intr_target)
static void msm_ack_intr_status(struct msm_pinctrl *pctrl,
const struct msm_pingroup *g)
{
u32 val = g->intr_ack_high ? BIT(g->intr_status_bit) : 0;
msm_writel_intr_status(val, pctrl, g);
}
static int msm_get_groups_count(struct pinctrl_dev *pctldev)
{
struct msm_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
......@@ -171,6 +181,10 @@ static int msm_pinmux_set_mux(struct pinctrl_dev *pctldev,
unsigned group)
{
struct msm_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
struct gpio_chip *gc = &pctrl->chip;
unsigned int irq = irq_find_mapping(gc->irq.domain, group);
struct irq_data *d = irq_get_irq_data(irq);
unsigned int gpio_func = pctrl->soc->gpio_func;
const struct msm_pingroup *g;
unsigned long flags;
u32 val, mask;
......@@ -187,6 +201,20 @@ static int msm_pinmux_set_mux(struct pinctrl_dev *pctldev,
if (WARN_ON(i == g->nfuncs))
return -EINVAL;
/*
* If an GPIO interrupt is setup on this pin then we need special
* handling. Specifically interrupt detection logic will still see
* the pin twiddle even when we're muxed away.
*
* When we see a pin with an interrupt setup on it then we'll disable
* (mask) interrupts on it when we mux away until we mux back. Note
* that disable_irq() refcounts and interrupts are disabled as long as
* at least one disable_irq() has been called.
*/
if (d && i != gpio_func &&
!test_and_set_bit(d->hwirq, pctrl->disabled_for_mux))
disable_irq(irq);
raw_spin_lock_irqsave(&pctrl->lock, flags);
val = msm_readl_ctl(pctrl, g);
......@@ -196,6 +224,20 @@ static int msm_pinmux_set_mux(struct pinctrl_dev *pctldev,
raw_spin_unlock_irqrestore(&pctrl->lock, flags);
if (d && i == gpio_func &&
test_and_clear_bit(d->hwirq, pctrl->disabled_for_mux)) {
/*
* Clear interrupts detected while not GPIO since we only
* masked things.
*/
if (d->parent_data && test_bit(d->hwirq, pctrl->skip_wake_irqs))
irq_chip_set_parent_state(d, IRQCHIP_STATE_PENDING, false);
else
msm_ack_intr_status(pctrl, g);
enable_irq(irq);
}
return 0;
}
......@@ -210,8 +252,7 @@ static int msm_pinmux_request_gpio(struct pinctrl_dev *pctldev,
if (!g->nfuncs)
return 0;
/* For now assume function 0 is GPIO because it always is */
return msm_pinmux_set_mux(pctldev, g->funcs[0], offset);
return msm_pinmux_set_mux(pctldev, g->funcs[pctrl->soc->gpio_func], offset);
}
static const struct pinmux_ops msm_pinmux_ops = {
......@@ -774,7 +815,7 @@ static void msm_gpio_irq_mask(struct irq_data *d)
raw_spin_unlock_irqrestore(&pctrl->lock, flags);
}
static void msm_gpio_irq_clear_unmask(struct irq_data *d, bool status_clear)
static void msm_gpio_irq_unmask(struct irq_data *d)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
struct msm_pinctrl *pctrl = gpiochip_get_data(gc);
......@@ -792,17 +833,6 @@ static void msm_gpio_irq_clear_unmask(struct irq_data *d, bool status_clear)
raw_spin_lock_irqsave(&pctrl->lock, flags);
if (status_clear) {
/*
* clear the interrupt status bit before unmask to avoid
* any erroneous interrupts that would have got latched
* when the interrupt is not in use.
*/
val = msm_readl_intr_status(pctrl, g);
val &= ~BIT(g->intr_status_bit);
msm_writel_intr_status(val, pctrl, g);
}
val = msm_readl_intr_cfg(pctrl, g);
val |= BIT(g->intr_raw_status_bit);
val |= BIT(g->intr_enable_bit);
......@@ -822,7 +852,7 @@ static void msm_gpio_irq_enable(struct irq_data *d)
irq_chip_enable_parent(d);
if (!test_bit(d->hwirq, pctrl->skip_wake_irqs))
msm_gpio_irq_clear_unmask(d, true);
msm_gpio_irq_unmask(d);
}
static void msm_gpio_irq_disable(struct irq_data *d)
......@@ -837,11 +867,6 @@ static void msm_gpio_irq_disable(struct irq_data *d)
msm_gpio_irq_mask(d);
}
static void msm_gpio_irq_unmask(struct irq_data *d)
{
msm_gpio_irq_clear_unmask(d, false);
}
/**
* msm_gpio_update_dual_edge_parent() - Prime next edge for IRQs handled by parent.
* @d: The irq dta.
......@@ -894,7 +919,6 @@ static void msm_gpio_irq_ack(struct irq_data *d)
struct msm_pinctrl *pctrl = gpiochip_get_data(gc);
const struct msm_pingroup *g;
unsigned long flags;
u32 val;
if (test_bit(d->hwirq, pctrl->skip_wake_irqs)) {
if (test_bit(d->hwirq, pctrl->dual_edge_irqs))
......@@ -906,12 +930,7 @@ static void msm_gpio_irq_ack(struct irq_data *d)
raw_spin_lock_irqsave(&pctrl->lock, flags);
val = msm_readl_intr_status(pctrl, g);
if (g->intr_ack_high)
val |= BIT(g->intr_status_bit);
else
val &= ~BIT(g->intr_status_bit);
msm_writel_intr_status(val, pctrl, g);
msm_ack_intr_status(pctrl, g);
if (test_bit(d->hwirq, pctrl->dual_edge_irqs))
msm_gpio_update_dual_edge_pos(pctrl, g, d);
......@@ -936,6 +955,7 @@ static int msm_gpio_irq_set_type(struct irq_data *d, unsigned int type)
struct msm_pinctrl *pctrl = gpiochip_get_data(gc);
const struct msm_pingroup *g;
unsigned long flags;
bool was_enabled;
u32 val;
if (msm_gpio_needs_dual_edge_parent_workaround(d, type)) {
......@@ -997,6 +1017,7 @@ static int msm_gpio_irq_set_type(struct irq_data *d, unsigned int type)
* could cause the INTR_STATUS to be set for EDGE interrupts.
*/
val = msm_readl_intr_cfg(pctrl, g);
was_enabled = val & BIT(g->intr_raw_status_bit);
val |= BIT(g->intr_raw_status_bit);
if (g->intr_detection_width == 2) {
val &= ~(3 << g->intr_detection_bit);
......@@ -1046,6 +1067,14 @@ static int msm_gpio_irq_set_type(struct irq_data *d, unsigned int type)
}
msm_writel_intr_cfg(val, pctrl, g);
/*
* The first time we set RAW_STATUS_EN it could trigger an interrupt.
* Clear the interrupt. This is safe because we have
* IRQCHIP_SET_TYPE_MASKED.
*/
if (!was_enabled)
msm_ack_intr_status(pctrl, g);
if (test_bit(d->hwirq, pctrl->dual_edge_irqs))
msm_gpio_update_dual_edge_pos(pctrl, g, d);
......@@ -1099,16 +1128,11 @@ static int msm_gpio_irq_reqres(struct irq_data *d)
}
/*
* Clear the interrupt that may be pending before we enable
* the line.
* This is especially a problem with the GPIOs routed to the
* PDC. These GPIOs are direct-connect interrupts to the GIC.
* Disabling the interrupt line at the PDC does not prevent
* the interrupt from being latched at the GIC. The state at
* GIC needs to be cleared before enabling.
* The disable / clear-enable workaround we do in msm_pinmux_set_mux()
* only works if disable is not lazy since we only clear any bogus
* interrupt in hardware. Explicitly mark the interrupt as UNLAZY.
*/
if (d->parent_data && test_bit(d->hwirq, pctrl->skip_wake_irqs))
irq_chip_set_parent_state(d, IRQCHIP_STATE_PENDING, 0);
irq_set_status_flags(d->irq, IRQ_DISABLE_UNLAZY);
return 0;
out:
......
......@@ -118,6 +118,7 @@ struct msm_gpio_wakeirq_map {
* @wakeirq_dual_edge_errata: If true then GPIOs using the wakeirq_map need
* to be aware that their parent can't handle dual
* edge interrupts.
* @gpio_func: Which function number is GPIO (usually 0).
*/
struct msm_pinctrl_soc_data {
const struct pinctrl_pin_desc *pins;
......@@ -134,6 +135,7 @@ struct msm_pinctrl_soc_data {
const struct msm_gpio_wakeirq_map *wakeirq_map;
unsigned int nwakeirq_map;
bool wakeirq_dual_edge_errata;
unsigned int gpio_func;
};
extern const struct dev_pm_ops msm_pinctrl_dev_pm_ops;
......
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