From patchwork Fri Feb 27 17:38:04 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Geert Uytterhoeven X-Patchwork-Id: 444378 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 54F1D140142 for ; Sat, 28 Feb 2015 04:38:28 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754794AbbB0RiP (ORCPT ); Fri, 27 Feb 2015 12:38:15 -0500 Received: from xavier.telenet-ops.be ([195.130.132.52]:42109 "EHLO xavier.telenet-ops.be" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754780AbbB0RiL (ORCPT ); Fri, 27 Feb 2015 12:38:11 -0500 Received: from ayla.of.borg ([84.193.93.87]) by xavier.telenet-ops.be with bizsmtp id xVe81p01C1t5w8s01Ve8SY; Fri, 27 Feb 2015 18:38:09 +0100 Received: from ramsan.of.borg ([192.168.97.29] helo=ramsan) by ayla.of.borg with esmtp (Exim 4.82) (envelope-from ) id 1YROrY-0001cf-JZ; Fri, 27 Feb 2015 18:38:08 +0100 Received: from geert by ramsan with local (Exim 4.82) (envelope-from ) id 1YROrZ-0003Nr-QL; Fri, 27 Feb 2015 18:38:09 +0100 From: Geert Uytterhoeven To: Laurent Pinchart , Linus Walleij Cc: Magnus Damm , linux-gpio@vger.kernel.org, linux-sh@vger.kernel.org, Geert Uytterhoeven Subject: [PATCH 3/4] pinctrl: sh-pfc: Use u32 to store register data Date: Fri, 27 Feb 2015 18:38:04 +0100 Message-Id: <1425058685-12956-4-git-send-email-geert+renesas@glider.be> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1425058685-12956-1-git-send-email-geert+renesas@glider.be> References: <1425058685-12956-1-git-send-email-geert+renesas@glider.be> Sender: linux-gpio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org As PFC registers are either 8, 16, or 32 bits wide, use u32 (mostly replacing unsigned long) to store (parts of) register values and masks. Switch the shadow register operations from {set,clear}_bit() to plain C bit operations, as the former can operate on long data only. Signed-off-by: Geert Uytterhoeven Acked-by: Laurent Pinchart --- drivers/pinctrl/sh-pfc/core.c | 25 +++++++++++++------------ drivers/pinctrl/sh-pfc/core.h | 5 ++--- drivers/pinctrl/sh-pfc/gpio.c | 13 ++++++------- 3 files changed, 21 insertions(+), 22 deletions(-) diff --git a/drivers/pinctrl/sh-pfc/core.c b/drivers/pinctrl/sh-pfc/core.c index 466b899ec78b15d7..1758043cfcec253b 100644 --- a/drivers/pinctrl/sh-pfc/core.c +++ b/drivers/pinctrl/sh-pfc/core.c @@ -144,8 +144,7 @@ static int sh_pfc_enum_in_range(u16 enum_id, const struct pinmux_range *r) return 1; } -unsigned long sh_pfc_read_raw_reg(void __iomem *mapped_reg, - unsigned long reg_width) +u32 sh_pfc_read_raw_reg(void __iomem *mapped_reg, unsigned long reg_width) { switch (reg_width) { case 8: @@ -161,7 +160,7 @@ unsigned long sh_pfc_read_raw_reg(void __iomem *mapped_reg, } void sh_pfc_write_raw_reg(void __iomem *mapped_reg, unsigned long reg_width, - unsigned long data) + u32 data) { switch (reg_width) { case 8: @@ -181,8 +180,7 @@ void sh_pfc_write_raw_reg(void __iomem *mapped_reg, unsigned long reg_width, static void sh_pfc_config_reg_helper(struct sh_pfc *pfc, const struct pinmux_cfg_reg *crp, unsigned long in_pos, - void __iomem **mapped_regp, - unsigned long *maskp, + void __iomem **mapped_regp, u32 *maskp, unsigned long *posp) { unsigned int k; @@ -202,14 +200,15 @@ static void sh_pfc_config_reg_helper(struct sh_pfc *pfc, static void sh_pfc_write_config_reg(struct sh_pfc *pfc, const struct pinmux_cfg_reg *crp, - unsigned long field, unsigned long value) + unsigned long field, u32 value) { void __iomem *mapped_reg; - unsigned long mask, pos, data; + unsigned long pos; + u32 mask, data; sh_pfc_config_reg_helper(pfc, crp, field, &mapped_reg, &mask, &pos); - dev_dbg(pfc->dev, "write_reg addr = %lx, value = %ld, field = %ld, " + dev_dbg(pfc->dev, "write_reg addr = %lx, value = 0x%x, field = %ld, " "r_width = %u, f_width = %u\n", crp->reg, value, field, crp->reg_width, crp->field_width); @@ -230,11 +229,12 @@ static void sh_pfc_write_config_reg(struct sh_pfc *pfc, static int sh_pfc_get_config_reg(struct sh_pfc *pfc, u16 enum_id, const struct pinmux_cfg_reg **crp, int *fieldp, - int *valuep) + u32 *valuep) { const struct pinmux_cfg_reg *config_reg; - unsigned long r_width, f_width, curr_width, ncomb; - unsigned int k, m, n, pos, bit_pos; + unsigned long r_width, f_width, curr_width; + unsigned int k, m, pos, bit_pos; + u32 ncomb, n; k = 0; while (1) { @@ -300,7 +300,8 @@ int sh_pfc_config_mux(struct sh_pfc *pfc, unsigned mark, int pinmux_type) const struct pinmux_cfg_reg *cr = NULL; u16 enum_id; const struct pinmux_range *range; - int in_range, pos, field, value; + int in_range, pos, field; + u32 value; int ret; switch (pinmux_type) { diff --git a/drivers/pinctrl/sh-pfc/core.h b/drivers/pinctrl/sh-pfc/core.h index 6b59d63b9c01e7a6..8a10dd50ccdd2e0c 100644 --- a/drivers/pinctrl/sh-pfc/core.h +++ b/drivers/pinctrl/sh-pfc/core.h @@ -57,10 +57,9 @@ int sh_pfc_unregister_gpiochip(struct sh_pfc *pfc); int sh_pfc_register_pinctrl(struct sh_pfc *pfc); int sh_pfc_unregister_pinctrl(struct sh_pfc *pfc); -unsigned long sh_pfc_read_raw_reg(void __iomem *mapped_reg, - unsigned long reg_width); +u32 sh_pfc_read_raw_reg(void __iomem *mapped_reg, unsigned long reg_width); void sh_pfc_write_raw_reg(void __iomem *mapped_reg, unsigned long reg_width, - unsigned long data); + u32 data); int sh_pfc_get_pin_index(struct sh_pfc *pfc, unsigned int pin); int sh_pfc_config_mux(struct sh_pfc *pfc, unsigned mark, int pinmux_type); diff --git a/drivers/pinctrl/sh-pfc/gpio.c b/drivers/pinctrl/sh-pfc/gpio.c index 80f641ee4dea3146..f2bb7d7398cdfc24 100644 --- a/drivers/pinctrl/sh-pfc/gpio.c +++ b/drivers/pinctrl/sh-pfc/gpio.c @@ -21,7 +21,7 @@ struct sh_pfc_gpio_data_reg { const struct pinmux_data_reg *info; - unsigned long shadow; + u32 shadow; }; struct sh_pfc_gpio_pin { @@ -59,8 +59,8 @@ static void gpio_get_data_reg(struct sh_pfc_chip *chip, unsigned int offset, *bit = gpio_pin->dbit; } -static unsigned long gpio_read_data_reg(struct sh_pfc_chip *chip, - const struct pinmux_data_reg *dreg) +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; @@ -68,8 +68,7 @@ static unsigned long 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, - unsigned long value) + const struct pinmux_data_reg *dreg, u32 value) { void __iomem *mem = dreg->reg - chip->mem->phys + chip->mem->virt; @@ -162,9 +161,9 @@ static void gpio_pin_set_value(struct sh_pfc_chip *chip, unsigned offset, pos = reg->info->reg_width - (bit + 1); if (value) - set_bit(pos, ®->shadow); + reg->shadow |= BIT(pos); else - clear_bit(pos, ®->shadow); + reg->shadow &= ~BIT(pos); gpio_write_data_reg(chip, reg->info, reg->shadow); }