| Message ID | 1531821387-29845-3-git-send-email-ludovic.Barre@st.com |
|---|---|
| State | New |
| Headers | show |
| Series | add syscfg mask parameter | expand |
Hi add Rob, I forgotten rob's mail. On 07/17/2018 11:56 AM, Ludovic Barre wrote: > From: Ludovic Barre <ludovic.barre@st.com> > > This patch adds mask parameter to define IRQ mux field. > This field could vary depend of IRQ mux selection register. > To avoid backward compatibility, the drivers set > the legacy value by default. > > Signed-off-by: Ludovic Barre <ludovic.barre@st.com> > --- > drivers/pinctrl/stm32/pinctrl-stm32.c | 16 ++++++++++++++-- > 1 file changed, 14 insertions(+), 2 deletions(-) > > diff --git a/drivers/pinctrl/stm32/pinctrl-stm32.c b/drivers/pinctrl/stm32/pinctrl-stm32.c > index dfed609..f756232 100644 > --- a/drivers/pinctrl/stm32/pinctrl-stm32.c > +++ b/drivers/pinctrl/stm32/pinctrl-stm32.c > @@ -46,6 +46,8 @@ > #define STM32_GPIO_PINS_PER_BANK 16 > #define STM32_GPIO_IRQ_LINE 16 > > +#define SYSCFG_IRQMUX_MASK GENMASK(3, 0) > + > #define gpio_range_to_bank(chip) \ > container_of(chip, struct stm32_gpio_bank, range) > > @@ -1033,6 +1035,7 @@ static int stm32_pctrl_dt_setup_irq(struct platform_device *pdev, > struct device *dev = &pdev->dev; > struct regmap *rm; > int offset, ret, i; > + int mask, mask_width; > > parent = of_irq_find_parent(np); > if (!parent) > @@ -1052,12 +1055,21 @@ static int stm32_pctrl_dt_setup_irq(struct platform_device *pdev, > if (ret) > return ret; > > + ret = of_property_read_u32_index(np, "st,syscfg", 2, &mask); > + if (ret) > + mask = SYSCFG_IRQMUX_MASK; > + > + mask_width = fls(mask); > + > for (i = 0; i < STM32_GPIO_PINS_PER_BANK; i++) { > struct reg_field mux; > > mux.reg = offset + (i / 4) * 4; > - mux.lsb = (i % 4) * 4; > - mux.msb = mux.lsb + 3; > + mux.lsb = (i % 4) * mask_width; > + mux.msb = mux.lsb + mask_width - 1; > + > + dev_dbg(dev, "irqmux%d: reg:%#x, lsb:%d, msb:%d\n", > + i, mux.reg, mux.lsb, mux.msb); > > pctl->irqmux[i] = devm_regmap_field_alloc(dev, rm, mux); > if (IS_ERR(pctl->irqmux[i])) > -- To unsubscribe from this list: send the line "unsubscribe linux-gpio" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On 07/17/2018 03:11 PM, Ludovic BARRE wrote: > Hi > > add Rob, I forgotten rob's mail. > > On 07/17/2018 11:56 AM, Ludovic Barre wrote: >> From: Ludovic Barre <ludovic.barre@st.com> >> >> This patch adds mask parameter to define IRQ mux field. >> This field could vary depend of IRQ mux selection register. >> To avoid backward compatibility, the drivers set >> the legacy value by default. >> >> Signed-off-by: Ludovic Barre <ludovic.barre@st.com> Acked-by: Alexandre TORGUE <alexandre.torgue@st.com> >> --- >> drivers/pinctrl/stm32/pinctrl-stm32.c | 16 ++++++++++++++-- >> 1 file changed, 14 insertions(+), 2 deletions(-) >> >> diff --git a/drivers/pinctrl/stm32/pinctrl-stm32.c >> b/drivers/pinctrl/stm32/pinctrl-stm32.c >> index dfed609..f756232 100644 >> --- a/drivers/pinctrl/stm32/pinctrl-stm32.c >> +++ b/drivers/pinctrl/stm32/pinctrl-stm32.c >> @@ -46,6 +46,8 @@ >> #define STM32_GPIO_PINS_PER_BANK 16 >> #define STM32_GPIO_IRQ_LINE 16 >> +#define SYSCFG_IRQMUX_MASK GENMASK(3, 0) >> + >> #define gpio_range_to_bank(chip) \ >> container_of(chip, struct stm32_gpio_bank, range) >> @@ -1033,6 +1035,7 @@ static int stm32_pctrl_dt_setup_irq(struct >> platform_device *pdev, >> struct device *dev = &pdev->dev; >> struct regmap *rm; >> int offset, ret, i; >> + int mask, mask_width; >> parent = of_irq_find_parent(np); >> if (!parent) >> @@ -1052,12 +1055,21 @@ static int stm32_pctrl_dt_setup_irq(struct >> platform_device *pdev, >> if (ret) >> return ret; >> + ret = of_property_read_u32_index(np, "st,syscfg", 2, &mask); >> + if (ret) >> + mask = SYSCFG_IRQMUX_MASK; >> + >> + mask_width = fls(mask); >> + >> for (i = 0; i < STM32_GPIO_PINS_PER_BANK; i++) { >> struct reg_field mux; >> mux.reg = offset + (i / 4) * 4; >> - mux.lsb = (i % 4) * 4; >> - mux.msb = mux.lsb + 3; >> + mux.lsb = (i % 4) * mask_width; >> + mux.msb = mux.lsb + mask_width - 1; >> + >> + dev_dbg(dev, "irqmux%d: reg:%#x, lsb:%d, msb:%d\n", >> + i, mux.reg, mux.lsb, mux.msb); >> pctl->irqmux[i] = devm_regmap_field_alloc(dev, rm, mux); >> if (IS_ERR(pctl->irqmux[i])) >> -- To unsubscribe from this list: send the line "unsubscribe linux-gpio" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Tue, Jul 17, 2018 at 11:56 AM Ludovic Barre <ludovic.Barre@st.com> wrote: > From: Ludovic Barre <ludovic.barre@st.com> > > This patch adds mask parameter to define IRQ mux field. > This field could vary depend of IRQ mux selection register. > To avoid backward compatibility, the drivers set > the legacy value by default. > > Signed-off-by: Ludovic Barre <ludovic.barre@st.com> Patch applied with Alexandre's ACK. Yours, Linus Walleij -- To unsubscribe from this list: send the line "unsubscribe linux-gpio" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/pinctrl/stm32/pinctrl-stm32.c b/drivers/pinctrl/stm32/pinctrl-stm32.c index dfed609..f756232 100644 --- a/drivers/pinctrl/stm32/pinctrl-stm32.c +++ b/drivers/pinctrl/stm32/pinctrl-stm32.c @@ -46,6 +46,8 @@ #define STM32_GPIO_PINS_PER_BANK 16 #define STM32_GPIO_IRQ_LINE 16 +#define SYSCFG_IRQMUX_MASK GENMASK(3, 0) + #define gpio_range_to_bank(chip) \ container_of(chip, struct stm32_gpio_bank, range) @@ -1033,6 +1035,7 @@ static int stm32_pctrl_dt_setup_irq(struct platform_device *pdev, struct device *dev = &pdev->dev; struct regmap *rm; int offset, ret, i; + int mask, mask_width; parent = of_irq_find_parent(np); if (!parent) @@ -1052,12 +1055,21 @@ static int stm32_pctrl_dt_setup_irq(struct platform_device *pdev, if (ret) return ret; + ret = of_property_read_u32_index(np, "st,syscfg", 2, &mask); + if (ret) + mask = SYSCFG_IRQMUX_MASK; + + mask_width = fls(mask); + for (i = 0; i < STM32_GPIO_PINS_PER_BANK; i++) { struct reg_field mux; mux.reg = offset + (i / 4) * 4; - mux.lsb = (i % 4) * 4; - mux.msb = mux.lsb + 3; + mux.lsb = (i % 4) * mask_width; + mux.msb = mux.lsb + mask_width - 1; + + dev_dbg(dev, "irqmux%d: reg:%#x, lsb:%d, msb:%d\n", + i, mux.reg, mux.lsb, mux.msb); pctl->irqmux[i] = devm_regmap_field_alloc(dev, rm, mux); if (IS_ERR(pctl->irqmux[i]))