[PATCH 2/4] pinctrl: sh-pfc: Store register/field widths in u8 instead of unsigned long

[Geert Uytterhoeven <geert+renesas@xxxxxxxxx>]

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@xxxxxxxxx>
---
 drivers/pinctrl/sh-pfc/core.c   |  2 +-
 drivers/pinctrl/sh-pfc/sh_pfc.h | 10 ++++++----
 2 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/pinctrl/sh-pfc/core.c b/drivers/pinctrl/sh-pfc/core.c
index a56280814a3f884b..466b899ec78b15d7 100644
--- a/drivers/pinctrl/sh-pfc/core.c
+++ b/drivers/pinctrl/sh-pfc/core.c
@@ -210,7 +210,7 @@ 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 = %ld, 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);
diff --git a/drivers/pinctrl/sh-pfc/sh_pfc.h b/drivers/pinctrl/sh-pfc/sh_pfc.h
index ed5cf4192fa1a2d0..6aeec8152ea674cf 100644
--- a/drivers/pinctrl/sh-pfc/sh_pfc.h
+++ b/drivers/pinctrl/sh-pfc/sh_pfc.h
@@ -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;
 };
 
-- 
1.9.1

--
To unsubscribe from this list: send the line "unsubscribe linux-gpio" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html