diff mbox series

[v3,2/2] pinctrl: rockchip: add rk3308b SoC support

Message ID 20240604141020.21725-3-dmt.yashin@gmail.com (mailing list archive)
State New
Headers show
Series pinctrl: rockchip: add rk3308b SoC support | expand

Commit Message

Dmitry Yashin June 4, 2024, 2:10 p.m. UTC 
Add pinctrl support for rk3308b. This pin controller much the same as
rk3308's, but with additional iomux routes and 3bit iomuxes selected
via gpio##_sel_src_ctrl registers. Set them up in the function
rk3308b_soc_sel_src_init to use new 3bit iomuxes over some 2bit old
ones and update iomux_recalced and iomux_routes for the new SoC's.

Fixes: 1f3e25a06883 ("pinctrl: rockchip: fix RK3308 pinmux bits")
Signed-off-by: Dmitry Yashin <dmt.yashin@gmail.com>
Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
---
 drivers/pinctrl/pinctrl-rockchip.c | 234 +++++++++++++++++++++++++++++
 drivers/pinctrl/pinctrl-rockchip.h |   1 +
 2 files changed, 235 insertions(+)

Comments

Dan Carpenter June 5, 2024, 7:22 a.m. UTC | #1 
On Tue, Jun 04, 2024 at 07:10:20PM +0500, Dmitry Yashin wrote:
> Add pinctrl support for rk3308b. This pin controller much the same as
> rk3308's, but with additional iomux routes and 3bit iomuxes selected
> via gpio##_sel_src_ctrl registers. Set them up in the function
> rk3308b_soc_sel_src_init to use new 3bit iomuxes over some 2bit old
> ones and update iomux_recalced and iomux_routes for the new SoC's.
> 
> Fixes: 1f3e25a06883 ("pinctrl: rockchip: fix RK3308 pinmux bits")

Why does this one have a Fixes tag?  Isn't this new hardware support?
Possibly patch 1/2 was not actually a fix but just preparation for this
patch?

regards,
dan carpenter

> Signed-off-by: Dmitry Yashin <dmt.yashin@gmail.com>
> Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Dmitry Yashin June 5, 2024, 12:06 p.m. UTC | #2 
Hi Dan,

On 6/5/24 12:22 PM, Dan Carpenter wrote:

> On Tue, Jun 04, 2024 at 07:10:20PM +0500, Dmitry Yashin wrote:
> Why does this one have a Fixes tag?  Isn't this new hardware support?
> Possibly patch 1/2 was not actually a fix but just preparation for this
> patch?
>
> regards,
> dan carpenter

Initial pinctrl support for rk3308 included registers for rk3308b variant, which didn't work well with some pins of the first SoC and these reg's were fixed in the patch mentioned in this tag. So I added Fixes tag as this patch brings back proper setup for rk3308b and 1/2 indeed is the preparation. Thank you for taking your time on it. Perhaps I should describe such moments better next time.
Dmitry Yashin June 5, 2024, 12:20 p.m. UTC | #3 
Hi Dan,

On 6/5/24 12:22 PM, Dan Carpenter wrote:
> On Tue, Jun 04, 2024 at 07:10:20PM +0500, Dmitry Yashin wrote:
> Why does this one have a Fixes tag?  Isn't this new hardware support?
> Possibly patch 1/2 was not actually a fix but just preparation for this
> patch?
>
> regards,
> dan carpenter


Initial pinctrl support for rk3308 included registers for rk3308b variant,
which didn't work well with some pins of the first SoC and these reg's
were fixed in the patch mentioned in the tag. So I added Fixes tag as this
patch brings back proper setup for rk3308b and 1/2 indeed
is the preparation.

Thank you for taking your time on it. Perhaps I should describe such
moments better next time.


(resend without broken new line sorry)
diff mbox series

Patch

diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c
index b252d1454ce0..b6a0eadfeed2 100644
--- a/drivers/pinctrl/pinctrl-rockchip.c
+++ b/drivers/pinctrl/pinctrl-rockchip.c
@@ -632,6 +632,115 @@  static struct rockchip_mux_recalced_data rk3308_mux_recalced_data[] = {
 	},
 };
 
+static struct rockchip_mux_recalced_data rk3308b_mux_recalced_data[] = {
+	{
+		/* gpio1b6_sel */
+		.num = 1,
+		.pin = 14,
+		.reg = 0x28,
+		.bit = 12,
+		.mask = 0xf
+	}, {
+		/* gpio1b7_sel */
+		.num = 1,
+		.pin = 15,
+		.reg = 0x2c,
+		.bit = 0,
+		.mask = 0x3
+	}, {
+		/* gpio1c2_sel */
+		.num = 1,
+		.pin = 18,
+		.reg = 0x30,
+		.bit = 4,
+		.mask = 0xf
+	}, {
+		/* gpio1c3_sel */
+		.num = 1,
+		.pin = 19,
+		.reg = 0x30,
+		.bit = 8,
+		.mask = 0xf
+	}, {
+		/* gpio1c4_sel */
+		.num = 1,
+		.pin = 20,
+		.reg = 0x30,
+		.bit = 12,
+		.mask = 0xf
+	}, {
+		/* gpio1c5_sel */
+		.num = 1,
+		.pin = 21,
+		.reg = 0x34,
+		.bit = 0,
+		.mask = 0xf
+	}, {
+		/* gpio1c6_sel */
+		.num = 1,
+		.pin = 22,
+		.reg = 0x34,
+		.bit = 4,
+		.mask = 0xf
+	}, {
+		/* gpio1c7_sel */
+		.num = 1,
+		.pin = 23,
+		.reg = 0x34,
+		.bit = 8,
+		.mask = 0xf
+	}, {
+		/* gpio2a2_sel_plus */
+		.num = 2,
+		.pin = 2,
+		.reg = 0x608,
+		.bit = 0,
+		.mask = 0x7
+	}, {
+		/* gpio2a3_sel_plus */
+		.num = 2,
+		.pin = 3,
+		.reg = 0x608,
+		.bit = 4,
+		.mask = 0x7
+	}, {
+		/* gpio2c0_sel_plus */
+		.num = 2,
+		.pin = 16,
+		.reg = 0x610,
+		.bit = 8,
+		.mask = 0x7
+	}, {
+		/* gpio3b2_sel_plus */
+		.num = 3,
+		.pin = 10,
+		.reg = 0x610,
+		.bit = 0,
+		.mask = 0x7
+	}, {
+		/* gpio3b3_sel_plus */
+		.num = 3,
+		.pin = 11,
+		.reg = 0x610,
+		.bit = 4,
+		.mask = 0x7
+	}, {
+		/* gpio3b4_sel */
+		.num = 3,
+		.pin = 12,
+		.reg = 0x68,
+		.bit = 8,
+		.mask = 0xf
+	}, {
+		/* gpio3b5_sel */
+		.num = 3,
+		.pin = 13,
+		.reg = 0x68,
+		.bit = 12,
+		.mask = 0xf
+	},
+};
+
 static struct rockchip_mux_recalced_data rk3328_mux_recalced_data[] = {
 	{
 		.num = 2,
@@ -882,6 +991,35 @@  static struct rockchip_mux_route_data rk3308_mux_route_data[] = {
 	RK_MUXROUTE_SAME(2, RK_PA4, 3, 0x600, BIT(16 + 2) | BIT(2)), /* pdm-clkm-m2 */
 };
 
+static struct rockchip_mux_route_data rk3308b_mux_route_data[] = {
+	RK_MUXROUTE_SAME(0, RK_PC3, 1, 0x314, BIT(16 + 0) | BIT(0)), /* rtc_clk */
+	RK_MUXROUTE_SAME(1, RK_PC6, 2, 0x314, BIT(16 + 2) | BIT(16 + 3)), /* uart2_rxm0 */
+	RK_MUXROUTE_SAME(4, RK_PD2, 2, 0x314, BIT(16 + 2) | BIT(16 + 3) | BIT(2)), /* uart2_rxm1 */
+	RK_MUXROUTE_SAME(0, RK_PB7, 2, 0x608, BIT(16 + 8) | BIT(16 + 9)), /* i2c3_sdam0 */
+	RK_MUXROUTE_SAME(3, RK_PB4, 2, 0x608, BIT(16 + 8) | BIT(16 + 9) | BIT(8)), /* i2c3_sdam1 */
+	RK_MUXROUTE_SAME(2, RK_PA0, 3, 0x608, BIT(16 + 8) | BIT(16 + 9) | BIT(9)), /* i2c3_sdam2 */
+	RK_MUXROUTE_SAME(1, RK_PA3, 2, 0x308, BIT(16 + 3)), /* i2s-8ch-1-sclktxm0 */
+	RK_MUXROUTE_SAME(1, RK_PA4, 2, 0x308, BIT(16 + 3)), /* i2s-8ch-1-sclkrxm0 */
+	RK_MUXROUTE_SAME(1, RK_PB5, 2, 0x308, BIT(16 + 3) | BIT(3)), /* i2s-8ch-1-sclktxm1 */
+	RK_MUXROUTE_SAME(1, RK_PB6, 2, 0x308, BIT(16 + 3) | BIT(3)), /* i2s-8ch-1-sclkrxm1 */
+	RK_MUXROUTE_SAME(1, RK_PA4, 3, 0x308, BIT(16 + 12) | BIT(16 + 13)), /* pdm-clkm0 */
+	RK_MUXROUTE_SAME(1, RK_PB6, 4, 0x308, BIT(16 + 12) | BIT(16 + 13) | BIT(12)), /* pdm-clkm1 */
+	RK_MUXROUTE_SAME(2, RK_PA6, 2, 0x308, BIT(16 + 12) | BIT(16 + 13) | BIT(13)), /* pdm-clkm2 */
+	RK_MUXROUTE_SAME(2, RK_PA4, 3, 0x600, BIT(16 + 2) | BIT(2)), /* pdm-clkm-m2 */
+	RK_MUXROUTE_SAME(3, RK_PB2, 3, 0x314, BIT(16 + 9)), /* spi1_miso */
+	RK_MUXROUTE_SAME(2, RK_PA4, 2, 0x314, BIT(16 + 9) | BIT(9)), /* spi1_miso_m1 */
+	RK_MUXROUTE_SAME(0, RK_PB3, 3, 0x314, BIT(16 + 10) | BIT(16 + 11)), /* owire_m0 */
+	RK_MUXROUTE_SAME(1, RK_PC6, 7, 0x314, BIT(16 + 10) | BIT(16 + 11) | BIT(10)), /* owire_m1 */
+	RK_MUXROUTE_SAME(2, RK_PA2, 5, 0x314, BIT(16 + 10) | BIT(16 + 11) | BIT(11)), /* owire_m2 */
+	RK_MUXROUTE_SAME(0, RK_PB3, 2, 0x314, BIT(16 + 12) | BIT(16 + 13)), /* can_rxd_m0 */
+	RK_MUXROUTE_SAME(1, RK_PC6, 5, 0x314, BIT(16 + 12) | BIT(16 + 13) | BIT(12)), /* can_rxd_m1 */
+	RK_MUXROUTE_SAME(2, RK_PA2, 4, 0x314, BIT(16 + 12) | BIT(16 + 13) | BIT(13)), /* can_rxd_m2 */
+	RK_MUXROUTE_SAME(1, RK_PC4, 3, 0x314, BIT(16 + 14)), /* mac_rxd0_m0 */
+	RK_MUXROUTE_SAME(4, RK_PA2, 2, 0x314, BIT(16 + 14) | BIT(14)), /* mac_rxd0_m1 */
+	RK_MUXROUTE_SAME(3, RK_PB4, 4, 0x314, BIT(16 + 15)), /* uart3_rx */
+	RK_MUXROUTE_SAME(0, RK_PC1, 3, 0x314, BIT(16 + 15) | BIT(15)), /* uart3_rx_m1 */
+};
+
 static struct rockchip_mux_route_data rk3328_mux_route_data[] = {
 	RK_MUXROUTE_SAME(1, RK_PA1, 2, 0x50, BIT(16) | BIT(16 + 1)), /* uart2dbg_rxm0 */
 	RK_MUXROUTE_SAME(2, RK_PA1, 1, 0x50, BIT(16) | BIT(16 + 1) | BIT(0)), /* uart2dbg_rxm1 */
@@ -2420,6 +2558,7 @@  static int rockchip_get_pull(struct rockchip_pin_bank *bank, int pin_num)
 	case RK3188:
 	case RK3288:
 	case RK3308:
+	case RK3308B:
 	case RK3368:
 	case RK3399:
 	case RK3568:
@@ -2478,6 +2617,7 @@  static int rockchip_set_pull(struct rockchip_pin_bank *bank,
 	case RK3188:
 	case RK3288:
 	case RK3308:
+	case RK3308B:
 	case RK3368:
 	case RK3399:
 	case RK3568:
@@ -2740,6 +2880,7 @@  static bool rockchip_pinconf_pull_valid(struct rockchip_pin_ctrl *ctrl,
 	case RK3188:
 	case RK3288:
 	case RK3308:
+	case RK3308B:
 	case RK3368:
 	case RK3399:
 	case RK3568:
@@ -3348,6 +3489,93 @@  static int __maybe_unused rockchip_pinctrl_resume(struct device *dev)
 static SIMPLE_DEV_PM_OPS(rockchip_pinctrl_dev_pm_ops, rockchip_pinctrl_suspend,
 			 rockchip_pinctrl_resume);
 
+#define RK3308B_GRF_SOC_CON13			0x608
+#define RK3308B_GRF_SOC_CON15			0x610
+
+/* RK3308B_GRF_SOC_CON13 */
+#define RK3308B_GRF_I2C3_IOFUNC_SRC_CTRL	(BIT(16 + 10) | BIT(10))
+#define RK3308B_GRF_GPIO2A3_SEL_SRC_CTRL	(BIT(16 + 7)  | BIT(7))
+#define RK3308B_GRF_GPIO2A2_SEL_SRC_CTRL	(BIT(16 + 3)  | BIT(3))
+
+/* RK3308B_GRF_SOC_CON15 */
+#define RK3308B_GRF_GPIO2C0_SEL_SRC_CTRL	(BIT(16 + 11) | BIT(11))
+#define RK3308B_GRF_GPIO3B3_SEL_SRC_CTRL	(BIT(16 + 7)  | BIT(7))
+#define RK3308B_GRF_GPIO3B2_SEL_SRC_CTRL	(BIT(16 + 3)  | BIT(3))
+
+/*
+ * RK3308B has 3bit gpio##_sel_plus iomuxes over some 2bit old ones.
+ * Put them in use by initializing gpio##_sel_src_ctrl registers.
+ */
+static int rk3308b_soc_sel_src_init(struct rockchip_pinctrl *info)
+{
+	int ret;
+
+	ret = regmap_write(info->regmap_base, RK3308B_GRF_SOC_CON13,
+			   RK3308B_GRF_I2C3_IOFUNC_SRC_CTRL |
+			   RK3308B_GRF_GPIO2A3_SEL_SRC_CTRL |
+			   RK3308B_GRF_GPIO2A2_SEL_SRC_CTRL);
+	if (ret)
+		return ret;
+
+	ret = regmap_write(info->regmap_base, RK3308B_GRF_SOC_CON15,
+			   RK3308B_GRF_GPIO2C0_SEL_SRC_CTRL |
+			   RK3308B_GRF_GPIO3B3_SEL_SRC_CTRL |
+			   RK3308B_GRF_GPIO3B2_SEL_SRC_CTRL);
+
+	return ret;
+};
+
+#define RK3308_GRF_CHIP_ID			0x800
+
+static int rk3308_soc_update_type(struct rockchip_pinctrl *info)
+{
+	struct rockchip_pin_ctrl *ctrl = info->ctrl;
+	unsigned int chip_id;
+	int ret;
+
+	ret = regmap_read(info->regmap_base, RK3308_GRF_CHIP_ID, &chip_id);
+	if (ret)
+		return ret;
+
+	switch (chip_id) {
+	/* From RK3308 TRM: "Errata: The read only chip id value is 32'h0cea(32'd3306)" */
+	case 0xcea:
+		break;
+	case 0x3308:
+	case 0x3308c:
+		ctrl->type = RK3308B;
+		break;
+	default:
+		return dev_err_probe(info->dev, -EINVAL, "Unknown chip_id: 0x%x\n", chip_id);
+	}
+
+	return 0;
+}
+
+static int rk3308_soc_data_update(struct rockchip_pinctrl *info)
+{
+	struct rockchip_pin_ctrl *ctrl = info->ctrl;
+	int ret;
+
+	ret = rk3308_soc_update_type(info);
+	if (ret)
+		return ret;
+
+	if (ctrl->type == RK3308B) {
+		/* Replace iomux data for RK3308B and RK3308BS */
+		ctrl->iomux_recalced	= rk3308b_mux_recalced_data;
+		ctrl->niomux_recalced	= ARRAY_SIZE(rk3308b_mux_recalced_data);
+		ctrl->iomux_routes	= rk3308b_mux_route_data;
+		ctrl->niomux_routes	= ARRAY_SIZE(rk3308b_mux_route_data);
+
+		ret = rk3308b_soc_sel_src_init(info);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
+}
+
 static int rockchip_pinctrl_probe(struct platform_device *pdev)
 {
 	struct rockchip_pinctrl *info;
@@ -3413,6 +3641,12 @@  static int rockchip_pinctrl_probe(struct platform_device *pdev)
 			return PTR_ERR(info->regmap_pmu);
 	}
 
+	if (ctrl->type == RK3308) {
+		ret = rk3308_soc_data_update(info);
+		if (ret)
+			return ret;
+	}
+
 	iomux_recalced_routes_init(info);
 
 	ret = rockchip_pinctrl_register(pdev, info);
diff --git a/drivers/pinctrl/pinctrl-rockchip.h b/drivers/pinctrl/pinctrl-rockchip.h
index 4759f336941e..3af5b1bd626b 100644
--- a/drivers/pinctrl/pinctrl-rockchip.h
+++ b/drivers/pinctrl/pinctrl-rockchip.h
@@ -193,6 +193,7 @@  enum rockchip_pinctrl_type {
 	RK3188,
 	RK3288,
 	RK3308,
+	RK3308B,
 	RK3368,
 	RK3399,
 	RK3568,