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pinctrl: sh-pfc: Store register/field widths in u8 instead of unsigned long

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Register and field widths are in the range 1..32. Storing them in the
pinctrl data in (arrays of) unsigned long wastes space.

This decreases the size of a (32-bit) shmobile_defconfig kernel
supporting 7 SoCs by 26460 bytes.

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>
This commit is contained in:
Geert Uytterhoeven 2015-03-12 11:09:13 +01:00 committed by Linus Walleij
parent dbad75dd1f
commit dc70071550
2 changed files with 7 additions and 5 deletions
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2
drivers/pinctrl/sh-pfc/core.c
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@ -209,7 +209,7 @@ 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 = %ld, "
"r_width = %ld, f_width = %ld\n",
"r_width = %u, f_width = %u\n",
crp->reg, value, field, crp->reg_width, crp->field_width);
mask = ~(mask << pos);

10
drivers/pinctrl/sh-pfc/sh_pfc.h
View file

@ -69,9 +69,10 @@ struct pinmux_func {
};
struct pinmux_cfg_reg {
unsigned long reg, reg_width, field_width;
unsigned long reg;
u8 reg_width, field_width;
const u16 *enum_ids;
const unsigned long *var_field_width;
const u8 *var_field_width;
};
#define PINMUX_CFG_REG(name, r, r_width, f_width) \
@ -80,12 +81,13 @@ struct pinmux_cfg_reg {
#define PINMUX_CFG_REG_VAR(name, r, r_width, var_fw0, var_fwn...) \
.reg = r, .reg_width = r_width, \
.var_field_width = (const unsigned long [r_width]) \
.var_field_width = (const u8 [r_width]) \
{ var_fw0, var_fwn, 0 }, \
.enum_ids = (const u16 [])
struct pinmux_data_reg {
unsigned long reg, reg_width;
unsigned long reg;
u8 reg_width;
const u16 *enum_ids;
};