pinctrl: qcom: ipq4019: support all pin functions

Currently, IPQ4019 pinctrl driver supports only a very limited number of
pin functions and is not fully DT compatible with Linux pinctrl nodes.

IPQ40xx SoC-s sometimes use different pin function numbers for the same
function depending on the pin number, so for example I2C0 on GPIO58 uses
function number 3 while on GPIO59 it uses function number 2.

So, in order to make the driver compatible with upstream DTS to avoid the
need to patch the pinctrl nodes in U-Boot and support all of the missing
pin functions lets rework the driver based on upstream Linux IPQ4019
pinctrl driver and the pending SM8150 U-Boot pinctrl driver which also uses
different function numbers pased on the exact pin number.

Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>

1 files changed, 293 insertions, 13 deletions

diff --git a/drivers/pinctrl/qcom/pinctrl-ipq4019.c b/drivers/pinctrl/qcom/pinctrl-ipq4019.c
index 48644a51ae..26ab487857 100644
--- a/drivers/pinctrl/qcom/pinctrl-ipq4019.c
+++ b/drivers/pinctrl/qcom/pinctrl-ipq4019.c
@@ -14,19 +14,291 @@
 
 #define MAX_PIN_NAME_LEN 32
 static char pin_name[MAX_PIN_NAME_LEN] __section(".data");
+
+enum ipq4019_functions {
+	qca_mux_gpio,
+	qca_mux_aud_pin,
+	qca_mux_audio_pwm,
+	qca_mux_blsp_i2c0,
+	qca_mux_blsp_i2c1,
+	qca_mux_blsp_spi0,
+	qca_mux_blsp_spi1,
+	qca_mux_blsp_uart0,
+	qca_mux_blsp_uart1,
+	qca_mux_chip_rst,
+	qca_mux_i2s_rx,
+	qca_mux_i2s_spdif_in,
+	qca_mux_i2s_spdif_out,
+	qca_mux_i2s_td,
+	qca_mux_i2s_tx,
+	qca_mux_jtag,
+	qca_mux_led0,
+	qca_mux_led1,
+	qca_mux_led2,
+	qca_mux_led3,
+	qca_mux_led4,
+	qca_mux_led5,
+	qca_mux_led6,
+	qca_mux_led7,
+	qca_mux_led8,
+	qca_mux_led9,
+	qca_mux_led10,
+	qca_mux_led11,
+	qca_mux_mdc,
+	qca_mux_mdio,
+	qca_mux_pcie,
+	qca_mux_pmu,
+	qca_mux_prng_rosc,
+	qca_mux_qpic,
+	qca_mux_rgmii,
+	qca_mux_rmii,
+	qca_mux_sdio,
+	qca_mux_smart0,
+	qca_mux_smart1,
+	qca_mux_smart2,
+	qca_mux_smart3,
+	qca_mux_tm,
+	qca_mux_wifi0,
+	qca_mux_wifi1,
+	qca_mux_NA,
+};
+
+#define QCA_PIN_FUNCTION(fname)				\
+	[qca_mux_##fname] = {#fname, qca_mux_##fname}
+
 static const struct pinctrl_function msm_pinctrl_functions[] = {
-	{"gpio", 0},
-	{"blsp_uart0_0", 1}, /* Only for GPIO:16,17 */
-	{"blsp_uart0_1", 2}, /* Only for GPIO:60,61 */
-	{"blsp_uart1", 1},
-	{"blsp_spi0_0", 1}, /* Only for GPIO:12,13,14,15 */
-	{"blsp_spi0_1", 2}, /* Only for GPIO:54,55,56,57 */
-	{"blsp_spi1", 2},
-	{"mdio_0", 1}, /* Only for GPIO6 */
-	{"mdio_1", 2}, /* Only for GPIO53 */
-	{"mdc_0", 1}, /* Only for GPIO7 */
-	{"mdc_1", 2}, /* Only for GPIO52 */
+	QCA_PIN_FUNCTION(aud_pin),
+	QCA_PIN_FUNCTION(audio_pwm),
+	QCA_PIN_FUNCTION(blsp_i2c0),
+	QCA_PIN_FUNCTION(blsp_i2c1),
+	QCA_PIN_FUNCTION(blsp_spi0),
+	QCA_PIN_FUNCTION(blsp_spi1),
+	QCA_PIN_FUNCTION(blsp_uart0),
+	QCA_PIN_FUNCTION(blsp_uart1),
+	QCA_PIN_FUNCTION(chip_rst),
+	QCA_PIN_FUNCTION(gpio),
+	QCA_PIN_FUNCTION(i2s_rx),
+	QCA_PIN_FUNCTION(i2s_spdif_in),
+	QCA_PIN_FUNCTION(i2s_spdif_out),
+	QCA_PIN_FUNCTION(i2s_td),
+	QCA_PIN_FUNCTION(i2s_tx),
+	QCA_PIN_FUNCTION(jtag),
+	QCA_PIN_FUNCTION(led0),
+	QCA_PIN_FUNCTION(led1),
+	QCA_PIN_FUNCTION(led2),
+	QCA_PIN_FUNCTION(led3),
+	QCA_PIN_FUNCTION(led4),
+	QCA_PIN_FUNCTION(led5),
+	QCA_PIN_FUNCTION(led6),
+	QCA_PIN_FUNCTION(led7),
+	QCA_PIN_FUNCTION(led8),
+	QCA_PIN_FUNCTION(led9),
+	QCA_PIN_FUNCTION(led10),
+	QCA_PIN_FUNCTION(led11),
+	QCA_PIN_FUNCTION(mdc),
+	QCA_PIN_FUNCTION(mdio),
+	QCA_PIN_FUNCTION(pcie),
+	QCA_PIN_FUNCTION(pmu),
+	QCA_PIN_FUNCTION(prng_rosc),
+	QCA_PIN_FUNCTION(qpic),
+	QCA_PIN_FUNCTION(rgmii),
+	QCA_PIN_FUNCTION(rmii),
+	QCA_PIN_FUNCTION(sdio),
+	QCA_PIN_FUNCTION(smart0),
+	QCA_PIN_FUNCTION(smart1),
+	QCA_PIN_FUNCTION(smart2),
+	QCA_PIN_FUNCTION(smart3),
+	QCA_PIN_FUNCTION(tm),
+	QCA_PIN_FUNCTION(wifi0),
+	QCA_PIN_FUNCTION(wifi1),
 };
+
+typedef unsigned int msm_pin_function[15];
+
+#define PINGROUP(id, f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14) \
+	[id] = {        qca_mux_gpio, /* gpio mode */	\
+			qca_mux_##f1,			\
+			qca_mux_##f2,			\
+			qca_mux_##f3,			\
+			qca_mux_##f4,			\
+			qca_mux_##f5,			\
+			qca_mux_##f6,			\
+			qca_mux_##f7,			\
+			qca_mux_##f8,			\
+			qca_mux_##f9,			\
+			qca_mux_##f10,			\
+			qca_mux_##f11,			\
+			qca_mux_##f12,			\
+			qca_mux_##f13,			\
+			qca_mux_##f14			\
+	}
+
+static const msm_pin_function ipq4019_pin_functions[] = {
+	PINGROUP(0, jtag, smart0, i2s_rx, NA, NA, NA, NA, NA, NA, NA, NA, NA,
+		 NA, NA),
+	PINGROUP(1, jtag, smart0, i2s_rx, NA, NA, NA, NA, NA, NA, NA, NA, NA,
+		 NA, NA),
+	PINGROUP(2, jtag, smart0, i2s_rx, NA, NA, NA, NA, NA, NA, NA, NA, NA,
+		 NA, NA),
+	PINGROUP(3, jtag, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(4, jtag, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(5, jtag, smart0, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA,
+		 NA),
+	PINGROUP(6, mdio, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(7, mdc, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(8, blsp_uart1, NA, NA, smart1, NA, NA, NA, NA, NA, NA, NA,
+		 NA, NA, NA),
+	PINGROUP(9, blsp_uart1, NA, NA, smart1, NA, NA, NA, NA, NA, NA, NA,
+		 NA, NA, NA),
+	PINGROUP(10, blsp_uart1, NA, NA, blsp_i2c0, NA, NA, NA, NA, NA, NA, NA,
+		 NA, NA, NA),
+	PINGROUP(11, blsp_uart1, NA, NA, blsp_i2c0, NA, NA, NA, NA, NA, NA, NA,
+		 NA, NA, NA),
+	PINGROUP(12, blsp_spi0, blsp_i2c1, NA, NA, NA, NA, NA, NA, NA, NA, NA,
+		 NA, NA, NA),
+	PINGROUP(13, blsp_spi0, blsp_i2c1, NA, NA, NA, NA, NA, NA, NA, NA, NA,
+		 NA, NA, NA),
+	PINGROUP(14, blsp_spi0, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA,
+		 NA),
+	PINGROUP(15, blsp_spi0, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA,
+		 NA),
+	PINGROUP(16, blsp_uart0, led0, smart1, NA, NA, NA, NA, NA, NA, NA, NA,
+		 NA, NA, NA),
+	PINGROUP(17, blsp_uart0, led1, smart1, NA, NA, NA, NA, NA, NA, NA, NA,
+		 NA, NA, NA),
+	PINGROUP(18, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(19, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(20, blsp_i2c0, i2s_rx, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA,
+		 NA, NA),
+	PINGROUP(21, blsp_i2c0, i2s_rx, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA,
+		 NA, NA),
+	PINGROUP(22, rgmii, i2s_rx, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA,
+		 NA),
+	PINGROUP(23, sdio, rgmii, i2s_rx, NA, NA, NA, NA, NA, NA, NA, NA, NA,
+		 NA, NA),
+	PINGROUP(24, sdio, rgmii, i2s_tx, NA, NA, NA, NA, NA, NA, NA, NA, NA,
+		 NA, NA),
+	PINGROUP(25, sdio, rgmii, i2s_tx, NA, NA, NA, NA, NA, NA, NA, NA, NA,
+		 NA, NA),
+	PINGROUP(26, sdio, rgmii, i2s_tx, NA, NA, NA, NA, NA, NA, NA, NA, NA,
+		 NA, NA),
+	PINGROUP(27, sdio, rgmii, i2s_td, NA, NA, NA, NA, NA, NA, NA, NA, NA,
+		 NA, NA),
+	PINGROUP(28, sdio, rgmii, i2s_td, NA, NA, NA, NA, NA, NA, NA, NA, NA,
+		 NA, NA),
+	PINGROUP(29, sdio, rgmii, i2s_td, NA, NA, NA, NA, NA, NA, NA, NA, NA,
+		 NA, NA),
+	PINGROUP(30, sdio, rgmii, audio_pwm, NA, NA, NA, NA, NA, NA, NA, NA,
+		 NA, NA, NA),
+	PINGROUP(31, sdio, rgmii, audio_pwm, NA, NA, NA, NA, NA, NA, NA, NA,
+		 NA, NA, NA),
+	PINGROUP(32, sdio, rgmii, audio_pwm, NA, NA, NA, NA, NA, NA, NA, NA,
+		 NA, NA, NA),
+	PINGROUP(33, rgmii, audio_pwm, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA,
+		 NA, NA),
+	PINGROUP(34, blsp_i2c1, i2s_spdif_in, NA, NA, NA, NA, NA, NA, NA, NA,
+		 NA, NA, NA, NA),
+	PINGROUP(35, blsp_i2c1, i2s_spdif_out, NA, NA, NA, NA, NA, NA, NA, NA,
+		 NA, NA, NA, NA),
+	PINGROUP(36, rmii, led2, led0, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA,
+		 NA),
+	PINGROUP(37, rmii, wifi0, wifi1, led1, NA, NA, NA, NA, NA, NA, NA, NA,
+		 NA, NA),
+	PINGROUP(38, rmii, led2, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA,
+		 NA),
+	PINGROUP(39, rmii, pcie, led3, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA,
+		 NA),
+	PINGROUP(40, rmii, wifi0, wifi1, smart2, led4, NA, NA, NA, NA, NA, NA,
+		 NA, NA, NA),
+	PINGROUP(41, rmii, wifi0, wifi1, smart2, NA, NA, NA, NA, NA, NA, NA,
+		 NA, NA, NA),
+	PINGROUP(42, rmii, wifi0, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA,
+		 NA),
+	PINGROUP(43, rmii, wifi1, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA,
+		 NA),
+	PINGROUP(44, rmii, blsp_spi1, smart0, led5, NA, NA, NA, NA, NA, NA, NA,
+		 NA, NA, NA),
+	PINGROUP(45, rmii, blsp_spi1, blsp_spi0, smart0, led6, NA, NA, NA, NA,
+		 NA, NA, NA, NA, NA),
+	PINGROUP(46, rmii, blsp_spi1, smart0, led7, NA, NA, NA, NA, NA, NA, NA,
+		 NA, NA, NA),
+	PINGROUP(47, rmii, blsp_spi1, smart0, led8, NA, NA, NA, NA, NA, NA, NA,
+		 NA, NA, NA),
+	PINGROUP(48, rmii, aud_pin, smart2, led9, NA, NA, NA, NA, NA, NA, NA,
+		 NA, NA, NA),
+	PINGROUP(49, rmii, aud_pin, smart2, led10, NA, NA, NA, NA, NA, NA, NA,
+		 NA, NA, NA),
+	PINGROUP(50, rmii, aud_pin, wifi0, wifi1, led11, NA, NA, NA, NA, NA,
+		 NA, NA, NA, NA),
+	PINGROUP(51, rmii, aud_pin, wifi0, wifi1, NA, NA, NA, NA, NA, NA, NA,
+		 NA, NA, NA),
+	PINGROUP(52, qpic, mdc, pcie, i2s_tx, NA, NA, NA, tm, wifi0, wifi1, NA,
+		 NA, NA, NA),
+	PINGROUP(53, qpic, mdio, i2s_tx, prng_rosc, NA, tm, wifi0, wifi1, NA,
+		 NA, NA, NA, NA, NA),
+	PINGROUP(54, qpic, blsp_spi0, i2s_td, NA, pmu, NA, NA, NA, tm, NA, NA,
+		 NA, NA, NA),
+	PINGROUP(55, qpic, blsp_spi0, i2s_td, NA, pmu, NA, NA, NA, tm, NA, NA,
+		 NA, NA, NA),
+	PINGROUP(56, qpic, blsp_spi0, i2s_td, NA, NA, tm, wifi0, wifi1, NA, NA,
+		 NA, NA, NA, NA),
+	PINGROUP(57, qpic, blsp_spi0, i2s_tx, NA, NA, tm, wifi0, wifi1, NA, NA,
+		 NA, NA, NA, NA),
+	PINGROUP(58, qpic, led2, blsp_i2c0, smart3, smart1, i2s_rx, NA, NA, tm,
+		 wifi0, wifi1, NA, NA, NA),
+	PINGROUP(59, qpic, blsp_i2c0, smart3, smart1, i2s_spdif_in, NA, NA, NA,
+		 NA, NA, tm, NA, NA, NA),
+	PINGROUP(60, qpic, blsp_uart0, smart1, smart3, led0, i2s_tx, i2s_rx,
+		 NA, NA, NA, NA, NA, tm, NA),
+	PINGROUP(61, qpic, blsp_uart0, smart1, smart3, led1, i2s_tx, i2s_rx,
+		 NA, NA, NA, NA, NA, tm, NA),
+	PINGROUP(62, qpic, chip_rst, NA, NA, i2s_spdif_out, NA, NA, NA, NA, NA,
+		 tm, NA, NA, NA),
+	PINGROUP(63, qpic, NA, NA, NA, i2s_td, i2s_rx, i2s_spdif_out,
+		 i2s_spdif_in, NA, NA, NA, NA, tm, NA),
+	PINGROUP(64, qpic, audio_pwm, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA,
+		 NA, NA),
+	PINGROUP(65, qpic, audio_pwm, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA,
+		 NA, NA),
+	PINGROUP(66, qpic, audio_pwm, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA,
+		 NA, NA),
+	PINGROUP(67, qpic, audio_pwm, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA,
+		 NA, NA),
+	PINGROUP(68, qpic, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(69, qpic, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(70, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(71, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(72, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(73, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(74, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(75, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(76, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(77, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(78, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(79, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(80, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(81, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(82, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(83, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(84, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(85, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(86, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(87, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(88, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(89, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(90, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(91, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(92, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(93, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(94, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(95, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(96, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(97, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(98, wifi0, wifi1, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA,
+		 NA),
+	PINGROUP(99, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+};
+
 static const char *ipq4019_get_function_name(struct udevice *dev,
 					     unsigned int selector)
 {
@@ -40,10 +312,18 @@ static const char *ipq4019_get_pin_name(struct udevice *dev,
 	return pin_name;
 }
 
-static unsigned int ipq4019_get_function_mux(__maybe_unused unsigned int pin,
+static unsigned int ipq4019_get_function_mux(unsigned int pin,
 					     unsigned int selector)
 {
-	return msm_pinctrl_functions[selector].val;
+	unsigned int i;
+	const msm_pin_function *func = ipq4019_pin_functions + pin;
+
+	for (i = 0; i < 15; i++)
+		if ((*func)[i] == selector)
+			return i;
+
+	pr_err("Can't find requested function for pin %u pin\n", pin);
+	return -EINVAL;
 }
 
 static const struct msm_pinctrl_data ipq4019_data = {