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Date: Sun, 24 Jan 2021 13:49:32 +0000
From: Paul Cercueil <paul@...pouillou.net>
To: gregkh <gregkh@...uxfoundation.org>
Cc: Linus Walleij <linus.walleij@...aro.org>,
stable <stable@...r.kernel.org>, linux-gpio@...r.kernel.org,
linux-kernel@...r.kernel.org, od@...c.me
Subject: Re: [BACKPORT 5.4 PATCH] pinctrl: ingenic: Fix JZ4760 support
Le dim. 24 janv. 2021 à 13:47, Paul Cercueil <paul@...pouillou.net> a
écrit :
> - JZ4760 and JZ4760B have a similar register layout as the JZ4740, and
> don't use the new register layout, which was introduced with the
> JZ4770 SoC and not the JZ4760 or JZ4760B SoCs.
>
> - The JZ4740 code path only expected two function modes to be
> configurable for each pin, and wouldn't work with more than two. Fix
> it for the JZ4760, which has four configurable function modes.
Forgot to add the original commit ID:
9a85c09a3f507b925d75cb0c7c8f364467038052
Cheers,
-Paul
> Fixes: 0257595a5cf4 ("pinctrl: Ingenic: Add pinctrl driver for JZ4760
> and JZ4760B.")
> Cc: <stable@...r.kernel.org> # 5.3
> Signed-off-by: Paul Cercueil <paul@...pouillou.net>
> ---
> drivers/pinctrl/pinctrl-ingenic.c | 24 ++++++++++++------------
> 1 file changed, 12 insertions(+), 12 deletions(-)
>
> diff --git a/drivers/pinctrl/pinctrl-ingenic.c
> b/drivers/pinctrl/pinctrl-ingenic.c
> index 8bd0a078bfc4..61e7d938d4c5 100644
> --- a/drivers/pinctrl/pinctrl-ingenic.c
> +++ b/drivers/pinctrl/pinctrl-ingenic.c
> @@ -1378,7 +1378,7 @@ 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->version >= ID_JZ4760)
> + if (jzgc->jzpc->version >= ID_JZ4770)
> ingenic_gpio_set_bit(jzgc, JZ4760_GPIO_PAT0, offset, !!value);
> else
> ingenic_gpio_set_bit(jzgc, JZ4740_GPIO_DATA, offset, !!value);
> @@ -1389,7 +1389,7 @@ static void irq_set_type(struct
> ingenic_gpio_chip *jzgc,
> {
> u8 reg1, reg2;
>
> - if (jzgc->jzpc->version >= ID_JZ4760) {
> + if (jzgc->jzpc->version >= ID_JZ4770) {
> reg1 = JZ4760_GPIO_PAT1;
> reg2 = JZ4760_GPIO_PAT0;
> } else {
> @@ -1464,7 +1464,7 @@ 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->version >= ID_JZ4760)
> + if (jzgc->jzpc->version >= ID_JZ4770)
> ingenic_gpio_set_bit(jzgc, JZ4760_GPIO_INT, irq, true);
> else
> ingenic_gpio_set_bit(jzgc, JZ4740_GPIO_SELECT, irq, true);
> @@ -1480,7 +1480,7 @@ static void ingenic_gpio_irq_disable(struct
> irq_data *irqd)
>
> ingenic_gpio_irq_mask(irqd);
>
> - if (jzgc->jzpc->version >= ID_JZ4760)
> + if (jzgc->jzpc->version >= ID_JZ4770)
> ingenic_gpio_set_bit(jzgc, JZ4760_GPIO_INT, irq, false);
> else
> ingenic_gpio_set_bit(jzgc, JZ4740_GPIO_SELECT, irq, false);
> @@ -1505,7 +1505,7 @@ static void ingenic_gpio_irq_ack(struct
> irq_data *irqd)
> irq_set_type(jzgc, irq, IRQ_TYPE_LEVEL_HIGH);
> }
>
> - if (jzgc->jzpc->version >= ID_JZ4760)
> + if (jzgc->jzpc->version >= ID_JZ4770)
> ingenic_gpio_set_bit(jzgc, JZ4760_GPIO_FLAG, irq, false);
> else
> ingenic_gpio_set_bit(jzgc, JZ4740_GPIO_DATA, irq, true);
> @@ -1562,7 +1562,7 @@ static void ingenic_gpio_irq_handler(struct
> irq_desc *desc)
>
> chained_irq_enter(irq_chip, desc);
>
> - if (jzgc->jzpc->version >= ID_JZ4760)
> + if (jzgc->jzpc->version >= ID_JZ4770)
> flag = ingenic_gpio_read_reg(jzgc, JZ4760_GPIO_FLAG);
> else
> flag = ingenic_gpio_read_reg(jzgc, JZ4740_GPIO_FLAG);
> @@ -1643,7 +1643,7 @@ 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->version >= ID_JZ4760)
> + if (jzpc->version >= ID_JZ4770)
> return ingenic_get_pin_config(jzpc, pin, JZ4760_GPIO_INT) ||
> ingenic_get_pin_config(jzpc, pin, JZ4760_GPIO_PAT1);
>
> @@ -1676,7 +1676,7 @@ static int ingenic_pinmux_set_pin_fn(struct
> ingenic_pinctrl *jzpc,
> 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_load(jzpc, pin);
> - } else if (jzpc->version >= ID_JZ4760) {
> + } else if (jzpc->version >= ID_JZ4770) {
> ingenic_config_pin(jzpc, pin, JZ4760_GPIO_INT, false);
> ingenic_config_pin(jzpc, pin, GPIO_MSK, false);
> ingenic_config_pin(jzpc, pin, JZ4760_GPIO_PAT1, func & 0x2);
> @@ -1684,7 +1684,7 @@ static int ingenic_pinmux_set_pin_fn(struct
> ingenic_pinctrl *jzpc,
> } 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;
> @@ -1734,7 +1734,7 @@ static int
> ingenic_pinmux_gpio_set_direction(struct pinctrl_dev *pctldev,
> ingenic_shadow_config_pin(jzpc, pin, GPIO_MSK, true);
> ingenic_shadow_config_pin(jzpc, pin, JZ4760_GPIO_PAT1, input);
> ingenic_shadow_config_pin_load(jzpc, pin);
> - } else if (jzpc->version >= ID_JZ4760) {
> + } else if (jzpc->version >= ID_JZ4770) {
> ingenic_config_pin(jzpc, pin, JZ4760_GPIO_INT, false);
> ingenic_config_pin(jzpc, pin, GPIO_MSK, true);
> ingenic_config_pin(jzpc, pin, JZ4760_GPIO_PAT1, input);
> @@ -1764,7 +1764,7 @@ static int ingenic_pinconf_get(struct
> pinctrl_dev *pctldev,
> unsigned int offt = pin / PINS_PER_GPIO_CHIP;
> bool pull;
>
> - if (jzpc->version >= ID_JZ4760)
> + if (jzpc->version >= ID_JZ4770)
> pull = !ingenic_get_pin_config(jzpc, pin, JZ4760_GPIO_PEN);
> else
> pull = !ingenic_get_pin_config(jzpc, pin, JZ4740_GPIO_PULL_DIS);
> @@ -1796,7 +1796,7 @@ static int ingenic_pinconf_get(struct
> pinctrl_dev *pctldev,
> static void ingenic_set_bias(struct ingenic_pinctrl *jzpc,
> unsigned int pin, bool enabled)
> {
> - if (jzpc->version >= ID_JZ4760)
> + if (jzpc->version >= ID_JZ4770)
> ingenic_config_pin(jzpc, pin, JZ4760_GPIO_PEN, !enabled);
> else
> ingenic_config_pin(jzpc, pin, JZ4740_GPIO_PULL_DIS, !enabled);
> --
> 2.29.2
>
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