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Message-ID: <20200716023338.14922-9-tychang@realtek.com>
Date: Thu, 16 Jul 2020 10:33:38 +0800
From: TY Chang <tychang@...ltek.com>
To: <linux-realtek-soc@...ts.infradead.org>, <afaerber@...e.de>
CC: <linus.walleij@...aro.org>, <linux-gpio@...r.kernel.org>,
<robh+dt@...nel.org>, <devicetree@...r.kernel.org>,
<linux-kernel@...r.kernel.org>
Subject: [PATCH v2 8/8] pinctrl: realtek: DHC: Add suspend/resume callback function.
Add suspend and resume callback function for
Realtek DHC SoC pinctrl driver.
Signed-off-by: TY Chang <tychang@...ltek.com>
---
drivers/pinctrl/realtek/pinctrl-rtd.c | 39 +++++++++++++
drivers/pinctrl/realtek/pinctrl-rtd1195.h | 33 +++++++++++
drivers/pinctrl/realtek/pinctrl-rtd1295.h | 67 ++++++++++++++++++++++-
3 files changed, 138 insertions(+), 1 deletion(-)
diff --git a/drivers/pinctrl/realtek/pinctrl-rtd.c b/drivers/pinctrl/realtek/pinctrl-rtd.c
index 4d9740f875ff..f327453b01df 100644
--- a/drivers/pinctrl/realtek/pinctrl-rtd.c
+++ b/drivers/pinctrl/realtek/pinctrl-rtd.c
@@ -57,6 +57,12 @@ struct rtd_pin_desc {
const struct rtd_pin_mux_desc *functions;
};
+struct rtd_pin_reg_list {
+ unsigned int reg_offset;
+ unsigned int val;
+};
+
+
#define RTK_PIN_CONFIG(_name, _reg_off, _base_bit, _pud_en_off, \
_pud_sel_off, _curr_off, _smt_off, _curr_type) \
{ \
@@ -98,6 +104,8 @@ struct rtd_pinctrl_desc {
unsigned int num_muxes;
const struct rtd_pin_config_desc *configs;
unsigned int num_configs;
+ struct rtd_pin_reg_list *lists;
+ unsigned int num_regs;
};
#define PCONF_UNSUPP 0xffffffff
@@ -549,8 +557,39 @@ static int rtd_pinctrl_probe(struct platform_device *pdev)
return 0;
}
+static int rtd_pinctrl_suspend(struct platform_device *pdev, pm_message_t state)
+{
+ struct rtd_pinctrl *data = platform_get_drvdata(pdev);
+ struct rtd_pin_reg_list *list;
+ int i;
+
+ for (i = 0; i < data->info->num_regs; i++) {
+ list = &data->info->lists[i];
+ list->val = readl(data->base + list->reg_offset);
+ }
+
+ return 0;
+}
+
+static int rtd_pinctrl_resume(struct platform_device *pdev)
+{
+ struct rtd_pinctrl *data = platform_get_drvdata(pdev);
+ const struct rtd_pin_reg_list *list;
+ int i;
+
+ for (i = 0; i < data->info->num_regs; i++) {
+ list = &data->info->lists[i];
+ writel(list->val, data->base + list->reg_offset);
+ }
+
+ return 0;
+}
+
+
static struct platform_driver rtd_pinctrl_driver = {
.probe = rtd_pinctrl_probe,
+ .suspend = rtd_pinctrl_suspend,
+ .resume = rtd_pinctrl_resume,
.driver = {
.name = "rtd-pinctrl",
.of_match_table = rtd_pinctrl_dt_ids,
diff --git a/drivers/pinctrl/realtek/pinctrl-rtd1195.h b/drivers/pinctrl/realtek/pinctrl-rtd1195.h
index 74139345083c..c9d6e7894d66 100644
--- a/drivers/pinctrl/realtek/pinctrl-rtd1195.h
+++ b/drivers/pinctrl/realtek/pinctrl-rtd1195.h
@@ -358,6 +358,16 @@ static const struct rtd_pin_config_desc rtd1195_iso_configs[] = {
};
+static struct rtd_pin_reg_list rtd1195_iso_reg_lists[] = {
+ {.reg_offset = 0x0},
+ {.reg_offset = 0x4},
+ {.reg_offset = 0x8},
+ {.reg_offset = 0xc},
+ {.reg_offset = 0x10},
+ {.reg_offset = 0x14},
+};
+
+
static const struct rtd_pinctrl_desc rtd1195_iso_pinctrl_desc = {
.pins = rtd1195_iso_pins,
.num_pins = ARRAY_SIZE(rtd1195_iso_pins),
@@ -369,6 +379,8 @@ static const struct rtd_pinctrl_desc rtd1195_iso_pinctrl_desc = {
.num_muxes = ARRAY_SIZE(rtd1195_iso_muxes),
.configs = rtd1195_iso_configs,
.num_configs = ARRAY_SIZE(rtd1195_iso_configs),
+ .lists = rtd1195_iso_reg_lists,
+ .num_regs = ARRAY_SIZE(rtd1195_iso_reg_lists),
};
/* CRT */
@@ -1110,6 +1122,25 @@ static const struct rtd_pin_config_desc rtd1195_crt_configs[] = {
RTK_PIN_CONFIG(sensor_cko_1, 0x9c, 28, 1, 0, 2, 3, PADDRI_2_4),
};
+static struct rtd_pin_reg_list rtd1195_crt_reg_lists[] = {
+ {.reg_offset = 0x60},
+ {.reg_offset = 0x64},
+ {.reg_offset = 0x68},
+ {.reg_offset = 0x6c},
+ {.reg_offset = 0x70},
+ {.reg_offset = 0x74},
+ {.reg_offset = 0x78},
+ {.reg_offset = 0x7c},
+ {.reg_offset = 0x80},
+ {.reg_offset = 0x84},
+ {.reg_offset = 0x88},
+ {.reg_offset = 0x8c},
+ {.reg_offset = 0x90},
+ {.reg_offset = 0x94},
+ {.reg_offset = 0x98},
+ {.reg_offset = 0x9c},
+};
+
static const struct rtd_pinctrl_desc rtd1195_crt_pinctrl_desc = {
.pins = rtd1195_crt_pins,
@@ -1122,6 +1153,8 @@ static const struct rtd_pinctrl_desc rtd1195_crt_pinctrl_desc = {
.num_muxes = ARRAY_SIZE(rtd1195_crt_muxes),
.configs = rtd1195_crt_configs,
.num_configs = ARRAY_SIZE(rtd1195_crt_configs),
+ .lists = rtd1195_crt_reg_lists,
+ .num_regs = ARRAY_SIZE(rtd1195_crt_reg_lists),
};
#endif
diff --git a/drivers/pinctrl/realtek/pinctrl-rtd1295.h b/drivers/pinctrl/realtek/pinctrl-rtd1295.h
index 14d46baa97d8..7cd12f66e02f 100644
--- a/drivers/pinctrl/realtek/pinctrl-rtd1295.h
+++ b/drivers/pinctrl/realtek/pinctrl-rtd1295.h
@@ -525,7 +525,17 @@ static const struct rtd_pin_config_desc rtd1295_iso_configs[] = {
RTK_PIN_CONFIG(iso_gpio_34, 0x20, 4, 1, 0, 2, 3, 2),
};
-
+static struct rtd_pin_reg_list rtd1295_iso_reg_lists[] = {
+ {.reg_offset = 0x0},
+ {.reg_offset = 0x4},
+ {.reg_offset = 0x8},
+ {.reg_offset = 0xc},
+ {.reg_offset = 0x10},
+ {.reg_offset = 0x14},
+ {.reg_offset = 0x18},
+ {.reg_offset = 0x1c},
+ {.reg_offset = 0x20},
+};
static const struct rtd_pinctrl_desc rtd1295_iso_pinctrl_desc = {
.pins = rtd1295_iso_pins,
@@ -538,6 +548,8 @@ static const struct rtd_pinctrl_desc rtd1295_iso_pinctrl_desc = {
.num_muxes = ARRAY_SIZE(rtd1295_iso_muxes),
.configs = rtd1295_iso_configs,
.num_configs = ARRAY_SIZE(rtd1295_iso_configs),
+ .lists = rtd1295_iso_reg_lists,
+ .num_regs = ARRAY_SIZE(rtd1295_iso_reg_lists),
};
/* SB2 */
@@ -1225,6 +1237,28 @@ static const struct rtd_pin_config_desc rtd1295_sb2_configs[] = {
RTK_PIN_CONFIG(rgmii1_rxd_3, 0x78, 12, 1, 0, 2, 3, PADDRI_4_8),
};
+static struct rtd_pin_reg_list rtd1295_sb2_reg_lists[] = {
+ {.reg_offset = 0x8},
+ {.reg_offset = 0xc},
+ {.reg_offset = 0x10},
+ {.reg_offset = 0x14},
+ {.reg_offset = 0x28},
+ {.reg_offset = 0x14},
+ {.reg_offset = 0x2c},
+ {.reg_offset = 0x30},
+ {.reg_offset = 0x34},
+ {.reg_offset = 0x38},
+ {.reg_offset = 0x3c},
+ {.reg_offset = 0x60},
+ {.reg_offset = 0x64},
+ {.reg_offset = 0x68},
+ {.reg_offset = 0x6c},
+ {.reg_offset = 0x70},
+ {.reg_offset = 0x74},
+ {.reg_offset = 0x78},
+ {.reg_offset = 0x7c},
+};
+
static const struct rtd_pinctrl_desc rtd1295_sb2_pinctrl_desc = {
.pins = rtd1295_sb2_pins,
@@ -1237,6 +1271,8 @@ static const struct rtd_pinctrl_desc rtd1295_sb2_pinctrl_desc = {
.num_muxes = ARRAY_SIZE(rtd1295_sb2_muxes),
.configs = rtd1295_sb2_configs,
.num_configs = ARRAY_SIZE(rtd1295_sb2_configs),
+ .lists = rtd1295_sb2_reg_lists,
+ .num_regs = ARRAY_SIZE(rtd1295_sb2_reg_lists),
};
/* Disp */
@@ -1373,6 +1409,12 @@ static const struct rtd_pin_config_desc rtd1295_disp_configs[] = {
RTK_PIN_CONFIG(ao_sd_3, 0x4, 24, 1, 0, 2, 3, PADDRI_2_4),
};
+static struct rtd_pin_reg_list rtd1295_disp_reg_lists[] = {
+ {.reg_offset = 0x0},
+ {.reg_offset = 0x4},
+ {.reg_offset = 0x8},
+};
+
static const struct rtd_pinctrl_desc rtd1295_disp_pinctrl_desc = {
.pins = rtd1295_disp_pins,
@@ -1385,6 +1427,8 @@ static const struct rtd_pinctrl_desc rtd1295_disp_pinctrl_desc = {
.num_muxes = ARRAY_SIZE(rtd1295_disp_muxes),
.configs = rtd1295_disp_configs,
.num_configs = ARRAY_SIZE(rtd1295_disp_configs),
+ .lists = rtd1295_disp_reg_lists,
+ .num_regs = ARRAY_SIZE(rtd1295_disp_reg_lists),
};
/* CR */
@@ -1825,6 +1869,25 @@ static const struct rtd_pin_config_desc rtd1295_cr_configs[] = {
RTK_PIN_CONFIG(prob_3, 0x18, 24, 1, 0, 2, 3, PADDRI_4_8),
};
+static struct rtd_pin_reg_list rtd1295_cr_reg_lists[] = {
+ {.reg_offset = 0x0},
+ {.reg_offset = 0x4},
+ {.reg_offset = 0x8},
+ {.reg_offset = 0xc},
+ {.reg_offset = 0x10},
+ {.reg_offset = 0x14},
+ {.reg_offset = 0x18},
+ {.reg_offset = 0x1c},
+ {.reg_offset = 0x20},
+ {.reg_offset = 0x24},
+ {.reg_offset = 0x28},
+ {.reg_offset = 0x2c},
+ {.reg_offset = 0x30},
+ {.reg_offset = 0x34},
+ {.reg_offset = 0x38},
+ {.reg_offset = 0x3c},
+ {.reg_offset = 0x40},
+};
static const struct rtd_pinctrl_desc rtd1295_cr_pinctrl_desc = {
.pins = rtd1295_cr_pins,
@@ -1837,6 +1900,8 @@ static const struct rtd_pinctrl_desc rtd1295_cr_pinctrl_desc = {
.num_muxes = ARRAY_SIZE(rtd1295_cr_muxes),
.configs = rtd1295_cr_configs,
.num_configs = ARRAY_SIZE(rtd1295_cr_configs),
+ .lists = rtd1295_cr_reg_lists,
+ .num_regs = ARRAY_SIZE(rtd1295_cr_reg_lists),
};
#endif
--
2.27.0
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