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Date: Mon, 18 May 2015 23:11:15 -0700
From: Hongzhou Yang <hongzhou.yang@...iatek.com>
To: Rob Herring <robh+dt@...nel.org>,
Matthias Brugger <matthias.bgg@...il.com>,
Linus Walleij <linus.walleij@...aro.org>
CC: Pawel Moll <pawel.moll@....com>,
Mark Rutland <mark.rutland@....com>,
Ian Campbell <ijc+devicetree@...lion.org.uk>,
Kumar Gala <galak@...eaurora.org>,
Russell King <linux@....linux.org.uk>,
Samuel Ortiz <sameo@...ux.intel.com>,
Lee Jones <lee.jones@...aro.org>,
Hongzhou Yang <hongzhou.yang@...iatek.com>,
Sascha Hauer <s.hauer@...gutronix.de>,
Yingjoe Chen <yingjoe.chen@...iatek.com>,
Chaotian Jing <chaotian.jing@...iatek.com>,
Fabian Frederick <fabf@...net.be>,
Maoguang Meng <maoguang.meng@...iatek.com>,
Axel Lin <axel.lin@...ics.com>, <devicetree@...r.kernel.org>,
<linux-kernel@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>,
<linux-mediatek@...ts.infradead.org>, <linux-gpio@...r.kernel.org>,
<srv_heupstream@...iatek.com>,
Sascha Hauer <kernel@...gutronix.de>, <dandan.he@...iatek.com>,
<eddie.huang@...iatek.com>
Subject: [PATCH v2 04/11] pinctrl: mediatek: add mtk_pctrl_spec_pull_set_samereg common code
From: Yingjoe Chen <yingjoe.chen@...iatek.com>
Several mediatek soc use similar pull setting procedure as mt8173,
the pupd enable and resistance setting are in the same register.
Add common code mtk_pctrl_spec_pull_set_samereg out of spec_pull_set
in mt8173 to handle this case, so future soc driver can use it.
Signed-off-by: Yingjoe Chen <yingjoe.chen@...iatek.com>
Signed-off-by: Hongzhou Yang <hongzhou.yang@...iatek.com>
---
drivers/pinctrl/mediatek/pinctrl-mt8173.c | 166 +++++++------------------
drivers/pinctrl/mediatek/pinctrl-mtk-common.c | 60 +++++++++
drivers/pinctrl/mediatek/pinctrl-mtk-common.h | 31 +++++
3 files changed, 136 insertions(+), 121 deletions(-)
diff --git a/drivers/pinctrl/mediatek/pinctrl-mt8173.c b/drivers/pinctrl/mediatek/pinctrl-mt8173.c
index 412ea84..cc44b27 100644
--- a/drivers/pinctrl/mediatek/pinctrl-mt8173.c
+++ b/drivers/pinctrl/mediatek/pinctrl-mt8173.c
@@ -47,130 +47,54 @@ struct mtk_pin_ies_smt_set {
.offset = _offset, \
}
-/**
- * struct mtk_pin_spec_pupd_set - For special pins' pull up/down setting.
- * @pin: The pin number.
- * @offset: The offset of special pull up/down setting register.
- * @pupd_bit: The pull up/down bit in this register.
- * @r0_bit: The r0 bit of pull resistor.
- * @r1_bit: The r1 bit of pull resistor.
- */
-struct mtk_pin_spec_pupd_set {
- unsigned int pin;
- unsigned int offset;
- unsigned char pupd_bit;
- unsigned char r1_bit;
- unsigned char r0_bit;
-};
-
-#define MTK_PIN_PUPD_SPEC(_pin, _offset, _pupd, _r1, _r0) \
- { \
- .pin = _pin, \
- .offset = _offset, \
- .pupd_bit = _pupd, \
- .r1_bit = _r1, \
- .r0_bit = _r0, \
- }
-
-static const struct mtk_pin_spec_pupd_set mt8173_spec_pupd[] = {
- MTK_PIN_PUPD_SPEC(119, 0xe00, 2, 1, 0), /* KROW0 */
- MTK_PIN_PUPD_SPEC(120, 0xe00, 6, 5, 4), /* KROW1 */
- MTK_PIN_PUPD_SPEC(121, 0xe00, 10, 9, 8), /* KROW2 */
- MTK_PIN_PUPD_SPEC(122, 0xe10, 2, 1, 0), /* KCOL0 */
- MTK_PIN_PUPD_SPEC(123, 0xe10, 6, 5, 4), /* KCOL1 */
- MTK_PIN_PUPD_SPEC(124, 0xe10, 10, 9, 8), /* KCOL2 */
-
- MTK_PIN_PUPD_SPEC(67, 0xd10, 2, 1, 0), /* ms0 DS */
- MTK_PIN_PUPD_SPEC(68, 0xd00, 2, 1, 0), /* ms0 RST */
- MTK_PIN_PUPD_SPEC(66, 0xc10, 2, 1, 0), /* ms0 cmd */
- MTK_PIN_PUPD_SPEC(65, 0xc00, 2, 1, 0), /* ms0 clk */
- MTK_PIN_PUPD_SPEC(57, 0xc20, 2, 1, 0), /* ms0 data0 */
- MTK_PIN_PUPD_SPEC(58, 0xc20, 2, 1, 0), /* ms0 data1 */
- MTK_PIN_PUPD_SPEC(59, 0xc20, 2, 1, 0), /* ms0 data2 */
- MTK_PIN_PUPD_SPEC(60, 0xc20, 2, 1, 0), /* ms0 data3 */
- MTK_PIN_PUPD_SPEC(61, 0xc20, 2, 1, 0), /* ms0 data4 */
- MTK_PIN_PUPD_SPEC(62, 0xc20, 2, 1, 0), /* ms0 data5 */
- MTK_PIN_PUPD_SPEC(63, 0xc20, 2, 1, 0), /* ms0 data6 */
- MTK_PIN_PUPD_SPEC(64, 0xc20, 2, 1, 0), /* ms0 data7 */
-
- MTK_PIN_PUPD_SPEC(78, 0xc50, 2, 1, 0), /* ms1 cmd */
- MTK_PIN_PUPD_SPEC(73, 0xd20, 2, 1, 0), /* ms1 dat0 */
- MTK_PIN_PUPD_SPEC(74, 0xd20, 6, 5, 4), /* ms1 dat1 */
- MTK_PIN_PUPD_SPEC(75, 0xd20, 10, 9, 8), /* ms1 dat2 */
- MTK_PIN_PUPD_SPEC(76, 0xd20, 14, 13, 12), /* ms1 dat3 */
- MTK_PIN_PUPD_SPEC(77, 0xc40, 2, 1, 0), /* ms1 clk */
-
- MTK_PIN_PUPD_SPEC(100, 0xd40, 2, 1, 0), /* ms2 dat0 */
- MTK_PIN_PUPD_SPEC(101, 0xd40, 6, 5, 4), /* ms2 dat1 */
- MTK_PIN_PUPD_SPEC(102, 0xd40, 10, 9, 8), /* ms2 dat2 */
- MTK_PIN_PUPD_SPEC(103, 0xd40, 14, 13, 12), /* ms2 dat3 */
- MTK_PIN_PUPD_SPEC(104, 0xc80, 2, 1, 0), /* ms2 clk */
- MTK_PIN_PUPD_SPEC(105, 0xc90, 2, 1, 0), /* ms2 cmd */
-
- MTK_PIN_PUPD_SPEC(22, 0xd60, 2, 1, 0), /* ms3 dat0 */
- MTK_PIN_PUPD_SPEC(23, 0xd60, 6, 5, 4), /* ms3 dat1 */
- MTK_PIN_PUPD_SPEC(24, 0xd60, 10, 9, 8), /* ms3 dat2 */
- MTK_PIN_PUPD_SPEC(25, 0xd60, 14, 13, 12), /* ms3 dat3 */
- MTK_PIN_PUPD_SPEC(26, 0xcc0, 2, 1, 0), /* ms3 clk */
- MTK_PIN_PUPD_SPEC(27, 0xcd0, 2, 1, 0) /* ms3 cmd */
+static const struct mtk_pin_spec_pupd_set_samereg mt8173_spec_pupd[] = {
+ MTK_PIN_PUPD_SPEC_SR(119, 0xe00, 2, 1, 0), /* KROW0 */
+ MTK_PIN_PUPD_SPEC_SR(120, 0xe00, 6, 5, 4), /* KROW1 */
+ MTK_PIN_PUPD_SPEC_SR(121, 0xe00, 10, 9, 8), /* KROW2 */
+ MTK_PIN_PUPD_SPEC_SR(122, 0xe10, 2, 1, 0), /* KCOL0 */
+ MTK_PIN_PUPD_SPEC_SR(123, 0xe10, 6, 5, 4), /* KCOL1 */
+ MTK_PIN_PUPD_SPEC_SR(124, 0xe10, 10, 9, 8), /* KCOL2 */
+
+ MTK_PIN_PUPD_SPEC_SR(67, 0xd10, 2, 1, 0), /* ms0 DS */
+ MTK_PIN_PUPD_SPEC_SR(68, 0xd00, 2, 1, 0), /* ms0 RST */
+ MTK_PIN_PUPD_SPEC_SR(66, 0xc10, 2, 1, 0), /* ms0 cmd */
+ MTK_PIN_PUPD_SPEC_SR(65, 0xc00, 2, 1, 0), /* ms0 clk */
+ MTK_PIN_PUPD_SPEC_SR(57, 0xc20, 2, 1, 0), /* ms0 data0 */
+ MTK_PIN_PUPD_SPEC_SR(58, 0xc20, 2, 1, 0), /* ms0 data1 */
+ MTK_PIN_PUPD_SPEC_SR(59, 0xc20, 2, 1, 0), /* ms0 data2 */
+ MTK_PIN_PUPD_SPEC_SR(60, 0xc20, 2, 1, 0), /* ms0 data3 */
+ MTK_PIN_PUPD_SPEC_SR(61, 0xc20, 2, 1, 0), /* ms0 data4 */
+ MTK_PIN_PUPD_SPEC_SR(62, 0xc20, 2, 1, 0), /* ms0 data5 */
+ MTK_PIN_PUPD_SPEC_SR(63, 0xc20, 2, 1, 0), /* ms0 data6 */
+ MTK_PIN_PUPD_SPEC_SR(64, 0xc20, 2, 1, 0), /* ms0 data7 */
+
+ MTK_PIN_PUPD_SPEC_SR(78, 0xc50, 2, 1, 0), /* ms1 cmd */
+ MTK_PIN_PUPD_SPEC_SR(73, 0xd20, 2, 1, 0), /* ms1 dat0 */
+ MTK_PIN_PUPD_SPEC_SR(74, 0xd20, 6, 5, 4), /* ms1 dat1 */
+ MTK_PIN_PUPD_SPEC_SR(75, 0xd20, 10, 9, 8), /* ms1 dat2 */
+ MTK_PIN_PUPD_SPEC_SR(76, 0xd20, 14, 13, 12), /* ms1 dat3 */
+ MTK_PIN_PUPD_SPEC_SR(77, 0xc40, 2, 1, 0), /* ms1 clk */
+
+ MTK_PIN_PUPD_SPEC_SR(100, 0xd40, 2, 1, 0), /* ms2 dat0 */
+ MTK_PIN_PUPD_SPEC_SR(101, 0xd40, 6, 5, 4), /* ms2 dat1 */
+ MTK_PIN_PUPD_SPEC_SR(102, 0xd40, 10, 9, 8), /* ms2 dat2 */
+ MTK_PIN_PUPD_SPEC_SR(103, 0xd40, 14, 13, 12), /* ms2 dat3 */
+ MTK_PIN_PUPD_SPEC_SR(104, 0xc80, 2, 1, 0), /* ms2 clk */
+ MTK_PIN_PUPD_SPEC_SR(105, 0xc90, 2, 1, 0), /* ms2 cmd */
+
+ MTK_PIN_PUPD_SPEC_SR(22, 0xd60, 2, 1, 0), /* ms3 dat0 */
+ MTK_PIN_PUPD_SPEC_SR(23, 0xd60, 6, 5, 4), /* ms3 dat1 */
+ MTK_PIN_PUPD_SPEC_SR(24, 0xd60, 10, 9, 8), /* ms3 dat2 */
+ MTK_PIN_PUPD_SPEC_SR(25, 0xd60, 14, 13, 12), /* ms3 dat3 */
+ MTK_PIN_PUPD_SPEC_SR(26, 0xcc0, 2, 1, 0), /* ms3 clk */
+ MTK_PIN_PUPD_SPEC_SR(27, 0xcd0, 2, 1, 0) /* ms3 cmd */
};
-static int spec_pull_set(struct regmap *regmap, unsigned int pin,
+static int mt8173_spec_pull_set(struct regmap *regmap, unsigned int pin,
unsigned char align, bool isup, unsigned int r1r0)
{
- unsigned int i;
- unsigned int reg_pupd, reg_set, reg_rst;
- unsigned int bit_pupd, bit_r0, bit_r1;
- const struct mtk_pin_spec_pupd_set *spec_pupd_pin;
- bool find = false;
-
- for (i = 0; i < ARRAY_SIZE(mt8173_spec_pupd); i++) {
- if (pin == mt8173_spec_pupd[i].pin) {
- find = true;
- break;
- }
- }
-
- if (!find)
- return -EINVAL;
-
- spec_pupd_pin = mt8173_spec_pupd + i;
- reg_set = spec_pupd_pin->offset + align;
- reg_rst = spec_pupd_pin->offset + (align << 1);
-
- if (isup)
- reg_pupd = reg_rst;
- else
- reg_pupd = reg_set;
-
- bit_pupd = BIT(spec_pupd_pin->pupd_bit);
- regmap_write(regmap, reg_pupd, bit_pupd);
-
- bit_r0 = BIT(spec_pupd_pin->r0_bit);
- bit_r1 = BIT(spec_pupd_pin->r1_bit);
-
- switch (r1r0) {
- case MTK_PUPD_SET_R1R0_00:
- regmap_write(regmap, reg_rst, bit_r0);
- regmap_write(regmap, reg_rst, bit_r1);
- break;
- case MTK_PUPD_SET_R1R0_01:
- regmap_write(regmap, reg_set, bit_r0);
- regmap_write(regmap, reg_rst, bit_r1);
- break;
- case MTK_PUPD_SET_R1R0_10:
- regmap_write(regmap, reg_rst, bit_r0);
- regmap_write(regmap, reg_set, bit_r1);
- break;
- case MTK_PUPD_SET_R1R0_11:
- regmap_write(regmap, reg_set, bit_r0);
- regmap_write(regmap, reg_set, bit_r1);
- break;
- default:
- return -EINVAL;
- }
-
- return 0;
+ return mtk_pctrl_spec_pull_set_samereg(regmap, mt8173_spec_pupd,
+ ARRAY_SIZE(mt8173_spec_pupd), pin, align, isup, r1r0);
}
static const struct mtk_pin_ies_smt_set mt8173_ies_smt_set[] = {
@@ -382,7 +306,7 @@ static const struct mtk_pinctrl_devdata mt8173_pinctrl_data = {
.n_grp_cls = ARRAY_SIZE(mt8173_drv_grp),
.pin_drv_grp = mt8173_pin_drv,
.n_pin_drv_grps = ARRAY_SIZE(mt8173_pin_drv),
- .spec_pull_set = spec_pull_set,
+ .spec_pull_set = mt8173_spec_pull_set,
.spec_ies_smt_set = spec_ies_smt_set,
.dir_offset = 0x0000,
.pullen_offset = 0x0100,
diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
index 493294c..0aee6bc 100644
--- a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
+++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
@@ -186,6 +186,66 @@ static int mtk_pconf_set_driving(struct mtk_pinctrl *pctl,
return -EINVAL;
}
+int mtk_pctrl_spec_pull_set_samereg(struct regmap *regmap,
+ const struct mtk_pin_spec_pupd_set_samereg *pupd_infos,
+ unsigned int info_num, unsigned int pin,
+ unsigned char align, bool isup, unsigned int r1r0)
+{
+ unsigned int i;
+ unsigned int reg_pupd, reg_set, reg_rst;
+ unsigned int bit_pupd, bit_r0, bit_r1;
+ const struct mtk_pin_spec_pupd_set_samereg *spec_pupd_pin;
+ bool find = false;
+
+ for (i = 0; i < info_num; i++) {
+ if (pin == pupd_infos[i].pin) {
+ find = true;
+ break;
+ }
+ }
+
+ if (!find)
+ return -EINVAL;
+
+ spec_pupd_pin = pupd_infos + i;
+ reg_set = spec_pupd_pin->offset + align;
+ reg_rst = spec_pupd_pin->offset + (align << 1);
+
+ if (isup)
+ reg_pupd = reg_rst;
+ else
+ reg_pupd = reg_set;
+
+ bit_pupd = BIT(spec_pupd_pin->pupd_bit);
+ regmap_write(regmap, reg_pupd, bit_pupd);
+
+ bit_r0 = BIT(spec_pupd_pin->r0_bit);
+ bit_r1 = BIT(spec_pupd_pin->r1_bit);
+
+ switch (r1r0) {
+ case MTK_PUPD_SET_R1R0_00:
+ regmap_write(regmap, reg_rst, bit_r0);
+ regmap_write(regmap, reg_rst, bit_r1);
+ break;
+ case MTK_PUPD_SET_R1R0_01:
+ regmap_write(regmap, reg_set, bit_r0);
+ regmap_write(regmap, reg_rst, bit_r1);
+ break;
+ case MTK_PUPD_SET_R1R0_10:
+ regmap_write(regmap, reg_rst, bit_r0);
+ regmap_write(regmap, reg_set, bit_r1);
+ break;
+ case MTK_PUPD_SET_R1R0_11:
+ regmap_write(regmap, reg_set, bit_r0);
+ regmap_write(regmap, reg_set, bit_r1);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
static int mtk_pconf_set_pull_select(struct mtk_pinctrl *pctl,
unsigned int pin, bool enable, bool isup, unsigned int arg)
{
diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common.h b/drivers/pinctrl/mediatek/pinctrl-mtk-common.h
index 1508849..2a4b7be 100644
--- a/drivers/pinctrl/mediatek/pinctrl-mtk-common.h
+++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common.h
@@ -117,6 +117,32 @@ struct mtk_pin_drv_grp {
.grp = _grp, \
}
+/**
+ * struct mtk_pin_spec_pupd_set_samereg
+ * - For special pins' pull up/down setting which resides in same register
+ * @pin: The pin number.
+ * @offset: The offset of special pull up/down setting register.
+ * @pupd_bit: The pull up/down bit in this register.
+ * @r0_bit: The r0 bit of pull resistor.
+ * @r1_bit: The r1 bit of pull resistor.
+ */
+struct mtk_pin_spec_pupd_set_samereg {
+ unsigned short pin;
+ unsigned short offset;
+ unsigned char pupd_bit;
+ unsigned char r1_bit;
+ unsigned char r0_bit;
+};
+
+#define MTK_PIN_PUPD_SPEC_SR(_pin, _offset, _pupd, _r1, _r0) \
+ { \
+ .pin = _pin, \
+ .offset = _offset, \
+ .pupd_bit = _pupd, \
+ .r1_bit = _r1, \
+ .r0_bit = _r0, \
+ }
+
struct mtk_eint_offsets {
const char *name;
unsigned int stat;
@@ -220,4 +246,9 @@ struct mtk_pinctrl {
int mtk_pctrl_init(struct platform_device *pdev,
const struct mtk_pinctrl_devdata *data);
+int mtk_pctrl_spec_pull_set_samereg(struct regmap *regmap,
+ const struct mtk_pin_spec_pupd_set_samereg *pupd_infos,
+ unsigned int info_num, unsigned int pin,
+ unsigned char align, bool isup, unsigned int r1r0);
+
#endif /* __PINCTRL_MTK_COMMON_H */
--
1.7.9.5
--
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