diff options
author | Geert Uytterhoeven <geert+renesas@glider.be> | 2015-03-12 11:09:16 +0100 |
---|---|---|
committer | Linus Walleij <linus.walleij@linaro.org> | 2015-03-18 02:15:40 +0100 |
commit | 1f34de05e75a26e8f4dfe7566fe80309aabf10b7 (patch) | |
tree | fce210834fe77de73f74af5c78b934ea279bed13 /drivers/pinctrl/sh-pfc | |
parent | 17c7cbb0e7b7a877f1ce2063d7f869801b24cd6a (diff) | |
download | linux-1f34de05e75a26e8f4dfe7566fe80309aabf10b7.tar.bz2 |
pinctrl: sh-pfc: Use u32 to store register addresses
Currently all PFC registers lie in low 32-bit address space. Hence use
u32 instead of unsigned long to store PFC register addresses in pinctrl
tables. All calculations of virtual addresses use a phys_addr_t
intermediate, so we know where to add an offset if the 32-bit assumption
ever becomes false.
While this doesn't impact 32-bit builds, it would save ca. 7 KiB on a
64-bit shmobile_defconfig kernel.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl/sh-pfc')
-rw-r--r-- | drivers/pinctrl/sh-pfc/core.c | 6 | ||||
-rw-r--r-- | drivers/pinctrl/sh-pfc/gpio.c | 12 | ||||
-rw-r--r-- | drivers/pinctrl/sh-pfc/sh_pfc.h | 6 |
3 files changed, 14 insertions, 10 deletions
diff --git a/drivers/pinctrl/sh-pfc/core.c b/drivers/pinctrl/sh-pfc/core.c index c33e2474a867..1b6dc6922915 100644 --- a/drivers/pinctrl/sh-pfc/core.c +++ b/drivers/pinctrl/sh-pfc/core.c @@ -92,10 +92,10 @@ static int sh_pfc_map_resources(struct sh_pfc *pfc, return 0; } -static void __iomem *sh_pfc_phys_to_virt(struct sh_pfc *pfc, - unsigned long address) +static void __iomem *sh_pfc_phys_to_virt(struct sh_pfc *pfc, u32 reg) { struct sh_pfc_window *window; + phys_addr_t address = reg; unsigned int i; /* scan through physical windows and convert address */ @@ -208,7 +208,7 @@ static void sh_pfc_write_config_reg(struct sh_pfc *pfc, sh_pfc_config_reg_helper(pfc, crp, field, &mapped_reg, &mask, &pos); - dev_dbg(pfc->dev, "write_reg addr = %lx, value = 0x%x, field = %u, " + dev_dbg(pfc->dev, "write_reg addr = %x, value = 0x%x, field = %u, " "r_width = %u, f_width = %u\n", crp->reg, value, field, crp->reg_width, crp->field_width); diff --git a/drivers/pinctrl/sh-pfc/gpio.c b/drivers/pinctrl/sh-pfc/gpio.c index 5d3a35ce0912..ba353735ecf2 100644 --- a/drivers/pinctrl/sh-pfc/gpio.c +++ b/drivers/pinctrl/sh-pfc/gpio.c @@ -62,7 +62,8 @@ static void gpio_get_data_reg(struct sh_pfc_chip *chip, unsigned int offset, static u32 gpio_read_data_reg(struct sh_pfc_chip *chip, const struct pinmux_data_reg *dreg) { - void __iomem *mem = dreg->reg - chip->mem->phys + chip->mem->virt; + phys_addr_t address = dreg->reg; + void __iomem *mem = address - chip->mem->phys + chip->mem->virt; return sh_pfc_read_raw_reg(mem, dreg->reg_width); } @@ -70,7 +71,8 @@ static u32 gpio_read_data_reg(struct sh_pfc_chip *chip, static void gpio_write_data_reg(struct sh_pfc_chip *chip, const struct pinmux_data_reg *dreg, u32 value) { - void __iomem *mem = dreg->reg - chip->mem->phys + chip->mem->virt; + phys_addr_t address = dreg->reg; + void __iomem *mem = address - chip->mem->phys + chip->mem->virt; sh_pfc_write_raw_reg(mem, dreg->reg_width, value); } @@ -340,6 +342,7 @@ sh_pfc_add_gpiochip(struct sh_pfc *pfc, int(*setup)(struct sh_pfc_chip *), int sh_pfc_register_gpiochip(struct sh_pfc *pfc) { struct sh_pfc_chip *chip; + phys_addr_t address; unsigned int i; int ret; @@ -351,11 +354,12 @@ int sh_pfc_register_gpiochip(struct sh_pfc *pfc) * that covers the data registers. In that case don't try to handle * GPIOs. */ + address = pfc->info->data_regs[0].reg; for (i = 0; i < pfc->num_windows; ++i) { struct sh_pfc_window *window = &pfc->windows[i]; - if (pfc->info->data_regs[0].reg >= window->phys && - pfc->info->data_regs[0].reg < window->phys + window->size) + if (address >= window->phys && + address < window->phys + window->size) break; } diff --git a/drivers/pinctrl/sh-pfc/sh_pfc.h b/drivers/pinctrl/sh-pfc/sh_pfc.h index 6aeec8152ea6..c7508d5f6886 100644 --- a/drivers/pinctrl/sh-pfc/sh_pfc.h +++ b/drivers/pinctrl/sh-pfc/sh_pfc.h @@ -69,7 +69,7 @@ struct pinmux_func { }; struct pinmux_cfg_reg { - unsigned long reg; + u32 reg; u8 reg_width, field_width; const u16 *enum_ids; const u8 *var_field_width; @@ -86,7 +86,7 @@ struct pinmux_cfg_reg { .enum_ids = (const u16 []) struct pinmux_data_reg { - unsigned long reg; + u32 reg; u8 reg_width; const u16 *enum_ids; }; @@ -150,7 +150,7 @@ struct sh_pfc_soc_info { const struct pinmux_irq *gpio_irq; unsigned int gpio_irq_size; - unsigned long unlock_reg; + u32 unlock_reg; }; /* ----------------------------------------------------------------------------- |