video, lg4573: add support for the lg4573 display

Signed-off-by: Heiko Schocher <hs@denx.de>

video, lg4573: add support for the lg4573 display
Signed-off-by: Heiko Schocher <hs@denx.de>
Heiko Schocher · Anatolij Gustschin
1 parent cb9f8e6a73
Showing 3 changed files with 236 additions and 0 deletions Side-by-side Diff
drivers/video/Makefile
drivers/video/lg4573.c
include/video.h
@@ -45,6 +45,7 @@
 obj-$(CONFIG_VIDEO_VCXK) += bus_vcxk.o
 obj-$(CONFIG_VIDEO_VESA) += vesa_fb.o
 obj-$(CONFIG_FORMIKE) += formike.o
+obj-$(CONFIG_LG4573) += lg4573.o
 obj-$(CONFIG_AM335X_LCD) += am335x-fb.o
 obj-$(CONFIG_VIDEO_PARADE) += parade.o
+/*
+ * LCD: LG4573, TFT 4.3", 480x800, RGB24
+ * LCD initialization via SPI
+ *
+ * SPDX-License-Identifier:	GPL-2.0
+ *
+ */
+#include <common.h>
+#include <errno.h>
+#include <spi.h>
+
+#define PWR_ON_DELAY_MSECS  120
+
+static int lb043wv_spi_write_u16(struct spi_slave *spi, u16 val)
+{
+	unsigned long flags = SPI_XFER_BEGIN;
+	unsigned short buf16 = htons(val);
+	int ret = 0;
+
+	flags |= SPI_XFER_END;
+
+	ret = spi_xfer(spi, 16, &buf16, NULL, flags);
+	if (ret)
+		debug("%s: Failed to send: %d\n", __func__, ret);
+
+	return ret;
+}
+
+static void lb043wv_spi_write_u16_array(struct spi_slave *spi, u16 *buff,
+					int size)
+{
+	int i;
+
+	for (i = 0; i < size; i++)
+		lb043wv_spi_write_u16(spi, buff[i]);
+}
+
+static void lb043wv_display_mode_settings(struct spi_slave *spi)
+{
+	static u16 display_mode_settings[] = {
+	  0x703A,
+	  0x7270,
+	  0x70B1,
+	  0x7208,
+	  0x723B,
+	  0x720F,
+	  0x70B2,
+	  0x7200,
+	  0x72C8,
+	  0x70B3,
+	  0x7200,
+	  0x70B4,
+	  0x7200,
+	  0x70B5,
+	  0x7242,
+	  0x7210,
+	  0x7210,
+	  0x7200,
+	  0x7220,
+	  0x70B6,
+	  0x720B,
+	  0x720F,
+	  0x723C,
+	  0x7213,
+	  0x7213,
+	  0x72E8,
+	  0x70B7,
+	  0x7246,
+	  0x7206,
+	  0x720C,
+	  0x7200,
+	  0x7200,
+	};
+
+	debug("transfer display mode settings\n");
+	lb043wv_spi_write_u16_array(spi, display_mode_settings,
+				    ARRAY_SIZE(display_mode_settings));
+}
+
+static void lb043wv_power_settings(struct spi_slave *spi)
+{
+	static u16 power_settings[] = {
+	  0x70C0,
+	  0x7201,
+	  0x7211,
+	  0x70C3,
+	  0x7207,
+	  0x7203,
+	  0x7204,
+	  0x7204,
+	  0x7204,
+	  0x70C4,
+	  0x7212,
+	  0x7224,
+	  0x7218,
+	  0x7218,
+	  0x7202,
+	  0x7249,
+	  0x70C5,
+	  0x726F,
+	  0x70C6,
+	  0x7241,
+	  0x7263,
+	};
+
+	debug("transfer power settings\n");
+	lb043wv_spi_write_u16_array(spi, power_settings,
+				    ARRAY_SIZE(power_settings));
+}
+
+static void lb043wv_gamma_settings(struct spi_slave *spi)
+{
+	static u16 gamma_settings[] = {
+	  0x70D0,
+	  0x7203,
+	  0x7207,
+	  0x7273,
+	  0x7235,
+	  0x7200,
+	  0x7201,
+	  0x7220,
+	  0x7200,
+	  0x7203,
+	  0x70D1,
+	  0x7203,
+	  0x7207,
+	  0x7273,
+	  0x7235,
+	  0x7200,
+	  0x7201,
+	  0x7220,
+	  0x7200,
+	  0x7203,
+	  0x70D2,
+	  0x7203,
+	  0x7207,
+	  0x7273,
+	  0x7235,
+	  0x7200,
+	  0x7201,
+	  0x7220,
+	  0x7200,
+	  0x7203,
+	  0x70D3,
+	  0x7203,
+	  0x7207,
+	  0x7273,
+	  0x7235,
+	  0x7200,
+	  0x7201,
+	  0x7220,
+	  0x7200,
+	  0x7203,
+	  0x70D4,
+	  0x7203,
+	  0x7207,
+	  0x7273,
+	  0x7235,
+	  0x7200,
+	  0x7201,
+	  0x7220,
+	  0x7200,
+	  0x7203,
+	  0x70D5,
+	  0x7203,
+	  0x7207,
+	  0x7273,
+	  0x7235,
+	  0x7200,
+	  0x7201,
+	  0x7220,
+	  0x7200,
+	  0x7203,
+	};
+
+	debug("transfer gamma settings\n");
+	lb043wv_spi_write_u16_array(spi, gamma_settings,
+				    ARRAY_SIZE(gamma_settings));
+}
+
+static void lb043wv_display_on(struct spi_slave *spi)
+{
+	static u16 sleep_out = 0x7011;
+	static u16 display_on = 0x7029;
+
+	lb043wv_spi_write_u16(spi, sleep_out);
+	mdelay(PWR_ON_DELAY_MSECS);
+	lb043wv_spi_write_u16(spi, display_on);
+}
+
+int lg4573_spi_startup(unsigned int bus, unsigned int cs,
+	unsigned int max_hz, unsigned int spi_mode)
+{
+	struct spi_slave *spi;
+	int ret;
+
+	spi = spi_setup_slave(bus, cs, max_hz, spi_mode);
+	if (!spi) {
+		debug("%s: Failed to set up slave\n", __func__);
+		return -1;
+	}
+
+	ret = spi_claim_bus(spi);
+	if (ret) {
+		debug("%s: Failed to claim SPI bus: %d\n", __func__, ret);
+		goto err_claim_bus;
+	}
+
+	lb043wv_display_mode_settings(spi);
+	lb043wv_power_settings(spi);
+	lb043wv_gamma_settings(spi);
+
+	lb043wv_display_on(spi);
+	return 0;
+err_claim_bus:
+	spi_free_slave(spi);
+	return -1;
+}
+
+static int do_lgset(cmd_tbl_t *cmdtp, int flag, int argc,
+		       char * const argv[])
+{
+	lg4573_spi_startup(0, 0, 10000000, SPI_MODE_0);
+	return 0;
+}
+
+U_BOOT_CMD(
+	lgset,	2,	1,	do_lgset,
+	"set lgdisplay",
+	""
+);
@@ -69,5 +69,9 @@
 int kwh043st20_f01_spi_startup(unsigned int bus, unsigned int cs,
 	unsigned int max_hz, unsigned int spi_mode);
 #endif
+#if defined(CONFIG_LG4573)
+int lg4573_spi_startup(unsigned int bus, unsigned int cs,
+	unsigned int max_hz, unsigned int spi_mode);
+#endif
 #endif
...	...	@@ -45,6 +45,7 @@
45	45	obj-$(CONFIG_VIDEO_VCXK) += bus_vcxk.o
46	46	obj-$(CONFIG_VIDEO_VESA) += vesa_fb.o
47	47	obj-$(CONFIG_FORMIKE) += formike.o
	48	+obj-$(CONFIG_LG4573) += lg4573.o
48	49	obj-$(CONFIG_AM335X_LCD) += am335x-fb.o
49	50	obj-$(CONFIG_VIDEO_PARADE) += parade.o
	1	+/*
	2	+ * LCD: LG4573, TFT 4.3", 480x800, RGB24
	3	+ * LCD initialization via SPI
	4	+ *
	5	+ * SPDX-License-Identifier: GPL-2.0
	6	+ *
	7	+ */
	8	+#include <common.h>
	9	+#include <errno.h>
	10	+#include <spi.h>
	11	+
	12	+#define PWR_ON_DELAY_MSECS 120
	13	+
	14	+static int lb043wv_spi_write_u16(struct spi_slave *spi, u16 val)
	15	+{
	16	+ unsigned long flags = SPI_XFER_BEGIN;
	17	+ unsigned short buf16 = htons(val);
	18	+ int ret = 0;
	19	+
	20	+ flags \|= SPI_XFER_END;
	21	+
	22	+ ret = spi_xfer(spi, 16, &buf16, NULL, flags);
	23	+ if (ret)
	24	+ debug("%s: Failed to send: %d\n", __func__, ret);
	25	+
	26	+ return ret;
	27	+}
	28	+
	29	+static void lb043wv_spi_write_u16_array(struct spi_slave spi, u16 buff,
	30	+ int size)
	31	+{
	32	+ int i;
	33	+
	34	+ for (i = 0; i < size; i++)
	35	+ lb043wv_spi_write_u16(spi, buff[i]);
	36	+}
	37	+
	38	+static void lb043wv_display_mode_settings(struct spi_slave *spi)
	39	+{
	40	+ static u16 display_mode_settings[] = {
	41	+ 0x703A,
	42	+ 0x7270,
	43	+ 0x70B1,
	44	+ 0x7208,
	45	+ 0x723B,
	46	+ 0x720F,
	47	+ 0x70B2,
	48	+ 0x7200,
	49	+ 0x72C8,
	50	+ 0x70B3,
	51	+ 0x7200,
	52	+ 0x70B4,
	53	+ 0x7200,
	54	+ 0x70B5,
	55	+ 0x7242,
	56	+ 0x7210,
	57	+ 0x7210,
	58	+ 0x7200,
	59	+ 0x7220,
	60	+ 0x70B6,
	61	+ 0x720B,
	62	+ 0x720F,
	63	+ 0x723C,
	64	+ 0x7213,
	65	+ 0x7213,
	66	+ 0x72E8,
	67	+ 0x70B7,
	68	+ 0x7246,
	69	+ 0x7206,
	70	+ 0x720C,
	71	+ 0x7200,
	72	+ 0x7200,
	73	+ };
	74	+
	75	+ debug("transfer display mode settings\n");
	76	+ lb043wv_spi_write_u16_array(spi, display_mode_settings,
	77	+ ARRAY_SIZE(display_mode_settings));
	78	+}
	79	+
	80	+static void lb043wv_power_settings(struct spi_slave *spi)
	81	+{
	82	+ static u16 power_settings[] = {
	83	+ 0x70C0,
	84	+ 0x7201,
	85	+ 0x7211,
	86	+ 0x70C3,
	87	+ 0x7207,
	88	+ 0x7203,
	89	+ 0x7204,
	90	+ 0x7204,
	91	+ 0x7204,
	92	+ 0x70C4,
	93	+ 0x7212,
	94	+ 0x7224,
	95	+ 0x7218,
	96	+ 0x7218,
	97	+ 0x7202,
	98	+ 0x7249,
	99	+ 0x70C5,
	100	+ 0x726F,
	101	+ 0x70C6,
	102	+ 0x7241,
	103	+ 0x7263,
	104	+ };
	105	+
	106	+ debug("transfer power settings\n");
	107	+ lb043wv_spi_write_u16_array(spi, power_settings,
	108	+ ARRAY_SIZE(power_settings));
	109	+}
	110	+
	111	+static void lb043wv_gamma_settings(struct spi_slave *spi)
	112	+{
	113	+ static u16 gamma_settings[] = {
	114	+ 0x70D0,
	115	+ 0x7203,
	116	+ 0x7207,
	117	+ 0x7273,
	118	+ 0x7235,
	119	+ 0x7200,
	120	+ 0x7201,
	121	+ 0x7220,
	122	+ 0x7200,
	123	+ 0x7203,
	124	+ 0x70D1,
	125	+ 0x7203,
	126	+ 0x7207,
	127	+ 0x7273,
	128	+ 0x7235,
	129	+ 0x7200,
	130	+ 0x7201,
	131	+ 0x7220,
	132	+ 0x7200,
	133	+ 0x7203,
	134	+ 0x70D2,
	135	+ 0x7203,
	136	+ 0x7207,
	137	+ 0x7273,
	138	+ 0x7235,
	139	+ 0x7200,
	140	+ 0x7201,
	141	+ 0x7220,
	142	+ 0x7200,
	143	+ 0x7203,
	144	+ 0x70D3,
	145	+ 0x7203,
	146	+ 0x7207,
	147	+ 0x7273,
	148	+ 0x7235,
	149	+ 0x7200,
	150	+ 0x7201,
	151	+ 0x7220,
	152	+ 0x7200,
	153	+ 0x7203,
	154	+ 0x70D4,
	155	+ 0x7203,
	156	+ 0x7207,
	157	+ 0x7273,
	158	+ 0x7235,
	159	+ 0x7200,
	160	+ 0x7201,
	161	+ 0x7220,
	162	+ 0x7200,
	163	+ 0x7203,
	164	+ 0x70D5,
	165	+ 0x7203,
	166	+ 0x7207,
	167	+ 0x7273,
	168	+ 0x7235,
	169	+ 0x7200,
	170	+ 0x7201,
	171	+ 0x7220,
	172	+ 0x7200,
	173	+ 0x7203,
	174	+ };
	175	+
	176	+ debug("transfer gamma settings\n");
	177	+ lb043wv_spi_write_u16_array(spi, gamma_settings,
	178	+ ARRAY_SIZE(gamma_settings));
	179	+}
	180	+
	181	+static void lb043wv_display_on(struct spi_slave *spi)
	182	+{
	183	+ static u16 sleep_out = 0x7011;
	184	+ static u16 display_on = 0x7029;
	185	+
	186	+ lb043wv_spi_write_u16(spi, sleep_out);
	187	+ mdelay(PWR_ON_DELAY_MSECS);
	188	+ lb043wv_spi_write_u16(spi, display_on);
	189	+}
	190	+
	191	+int lg4573_spi_startup(unsigned int bus, unsigned int cs,
	192	+ unsigned int max_hz, unsigned int spi_mode)
	193	+{
	194	+ struct spi_slave *spi;
	195	+ int ret;
	196	+
	197	+ spi = spi_setup_slave(bus, cs, max_hz, spi_mode);
	198	+ if (!spi) {
	199	+ debug("%s: Failed to set up slave\n", __func__);
	200	+ return -1;
	201	+ }
	202	+
	203	+ ret = spi_claim_bus(spi);
	204	+ if (ret) {
	205	+ debug("%s: Failed to claim SPI bus: %d\n", __func__, ret);
	206	+ goto err_claim_bus;
	207	+ }
	208	+
	209	+ lb043wv_display_mode_settings(spi);
	210	+ lb043wv_power_settings(spi);
	211	+ lb043wv_gamma_settings(spi);
	212	+
	213	+ lb043wv_display_on(spi);
	214	+ return 0;
	215	+err_claim_bus:
	216	+ spi_free_slave(spi);
	217	+ return -1;
	218	+}
	219	+
	220	+static int do_lgset(cmd_tbl_t *cmdtp, int flag, int argc,
	221	+ char * const argv[])
	222	+{
	223	+ lg4573_spi_startup(0, 0, 10000000, SPI_MODE_0);
	224	+ return 0;
	225	+}
	226	+
	227	+U_BOOT_CMD(
	228	+ lgset, 2, 1, do_lgset,
	229	+ "set lgdisplay",
	230	+ ""
	231	+);
...	...	@@ -69,5 +69,9 @@
69	69	int kwh043st20_f01_spi_startup(unsigned int bus, unsigned int cs,
70	70	unsigned int max_hz, unsigned int spi_mode);
71	71	#endif
	72	+#if defined(CONFIG_LG4573)
	73	+int lg4573_spi_startup(unsigned int bus, unsigned int cs,
	74	+ unsigned int max_hz, unsigned int spi_mode);
	75	+#endif
72	76	#endif