#include #include #include #include #include #include #include #include #include #include "amba-clcd-nomadik.h" static struct gpio_desc *grestb; static struct gpio_desc *scen; static struct gpio_desc *scl; static struct gpio_desc *sda; static u8 tpg110_readwrite_reg(bool write, u8 address, u8 outval) { int i; u8 inval = 0; /* Assert SCEN */ gpiod_set_value_cansleep(scen, 1); ndelay(150); /* Hammer out the address */ for (i = 5; i >= 0; i--) { if (address & BIT(i)) gpiod_set_value_cansleep(sda, 1); else gpiod_set_value_cansleep(sda, 0); ndelay(150); /* Send an SCL pulse */ gpiod_set_value_cansleep(scl, 1); ndelay(160); gpiod_set_value_cansleep(scl, 0); ndelay(160); } if (write) { /* WRITE */ gpiod_set_value_cansleep(sda, 0); } else { /* READ */ gpiod_set_value_cansleep(sda, 1); } ndelay(150); /* Send an SCL pulse */ gpiod_set_value_cansleep(scl, 1); ndelay(160); gpiod_set_value_cansleep(scl, 0); ndelay(160); if (!write) /* HiZ turn-around cycle */ gpiod_direction_input(sda); ndelay(150); /* Send an SCL pulse */ gpiod_set_value_cansleep(scl, 1); ndelay(160); gpiod_set_value_cansleep(scl, 0); ndelay(160); /* Hammer in/out the data */ for (i = 7; i >= 0; i--) { int value; if (write) { value = !!(outval & BIT(i)); gpiod_set_value_cansleep(sda, value); } else { value = gpiod_get_value(sda); if (value) inval |= BIT(i); } ndelay(150); /* Send an SCL pulse */ gpiod_set_value_cansleep(scl, 1); ndelay(160); gpiod_set_value_cansleep(scl, 0); ndelay(160); } gpiod_direction_output(sda, 0); /* Deassert SCEN */ gpiod_set_value_cansleep(scen, 0); /* Satisfies SCEN pulse width */ udelay(1); return inval; } static u8 tpg110_read_reg(u8 address) { return tpg110_readwrite_reg(false, address, 0); } static void tpg110_write_reg(u8 address, u8 outval) { tpg110_readwrite_reg(true, address, outval); } static void tpg110_startup(struct device *dev) { u8 val; dev_info(dev, "TPG110 display enable\n"); /* De-assert the reset signal */ gpiod_set_value_cansleep(grestb, 0); mdelay(1); dev_info(dev, "de-asserted GRESTB\n"); /* Test display communication */ tpg110_write_reg(0x00, 0x55); val = tpg110_read_reg(0x00); if (val == 0x55) dev_info(dev, "passed communication test\n"); val = tpg110_read_reg(0x01); dev_info(dev, "TPG110 chip ID: %d version: %d\n", val>>4, val&0x0f); /* Show display resolution */ val = tpg110_read_reg(0x02); val &= 7; switch (val) { case 0x0: dev_info(dev, "IN 400x240 RGB -> OUT 800x480 RGB (dual scan)"); break; case 0x1: dev_info(dev, "IN 480x272 RGB -> OUT 800x480 RGB (dual scan)"); break; case 0x4: dev_info(dev, "480x640 RGB"); break; case 0x5: dev_info(dev, "480x272 RGB"); break; case 0x6: dev_info(dev, "640x480 RGB"); break; case 0x7: dev_info(dev, "800x480 RGB"); break; default: dev_info(dev, "ILLEGAL RESOLUTION"); break; } val = tpg110_read_reg(0x03); dev_info(dev, "resolution is controlled by %s\n", (val & BIT(7)) ? "software" : "hardware"); } static void tpg110_enable(struct clcd_fb *fb) { struct device *dev = &fb->dev->dev; static bool startup; u8 val; if (!startup) { tpg110_startup(dev); startup = true; } /* Take chip out of standby */ val = tpg110_read_reg(0x03); val |= BIT(0); tpg110_write_reg(0x03, val); } static void tpg110_disable(struct clcd_fb *fb) { u8 val; dev_info(&fb->dev->dev, "TPG110 display disable\n"); val = tpg110_read_reg(0x03); /* Put into standby */ val &= ~BIT(0); tpg110_write_reg(0x03, val); } static void tpg110_init(struct device *dev, struct device_node *np, struct clcd_board *board) { dev_info(dev, "TPG110 display init\n"); grestb = devm_get_gpiod_from_child(dev, "grestb", &np->fwnode); if (IS_ERR(grestb)) { dev_err(dev, "no GRESTB GPIO\n"); return; } /* This asserts the GRESTB signal, putting the display into reset */ gpiod_direction_output(grestb, 1); scen = devm_get_gpiod_from_child(dev, "scen", &np->fwnode); if (IS_ERR(scen)) { dev_err(dev, "no SCEN GPIO\n"); return; } gpiod_direction_output(scen, 0); scl = devm_get_gpiod_from_child(dev, "scl", &np->fwnode); if (IS_ERR(scl)) { dev_err(dev, "no SCL GPIO\n"); return; } gpiod_direction_output(scl, 0); sda = devm_get_gpiod_from_child(dev, "sda", &np->fwnode); if (IS_ERR(sda)) { dev_err(dev, "no SDA GPIO\n"); return; } gpiod_direction_output(sda, 0); board->enable = tpg110_enable; board->disable = tpg110_disable; } int nomadik_clcd_init_panel(struct clcd_fb *fb, struct device_node *endpoint) { struct device_node *panel; panel = of_graph_get_remote_port_parent(endpoint); if (!panel) return -ENODEV; if (of_device_is_compatible(panel, "tpo,tpg110")) tpg110_init(&fb->dev->dev, panel, fb->board); else dev_info(&fb->dev->dev, "unknown panel\n"); /* Unknown panel, fall through */ return 0; } EXPORT_SYMBOL_GPL(nomadik_clcd_init_panel); #define PMU_CTRL_OFFSET 0x0000 #define PMU_CTRL_LCDNDIF BIT(26) int nomadik_clcd_init_board(struct amba_device *adev, struct clcd_board *board) { struct regmap *pmu_regmap; dev_info(&adev->dev, "Nomadik CLCD board init\n"); pmu_regmap = syscon_regmap_lookup_by_compatible("stericsson,nomadik-pmu"); if (IS_ERR(pmu_regmap)) { dev_err(&adev->dev, "could not find PMU syscon regmap\n"); return PTR_ERR(pmu_regmap); } regmap_update_bits(pmu_regmap, PMU_CTRL_OFFSET, PMU_CTRL_LCDNDIF, 0); dev_info(&adev->dev, "set PMU mux to CLCD mode\n"); return 0; } EXPORT_SYMBOL_GPL(nomadik_clcd_init_board); 5c35ccc3c94695b'>diff)
USB: serial: pl2303: add ATEN device ID
Seems that ATEN serial-to-usb devices using pl2303 exist with different device ids. This patch adds a missing device ID so it is recognised by the driver. Signed-off-by: Marcel J.E. Mol <marcel@mesa.nl> Cc: stable <stable@vger.kernel.org> Signed-off-by: Johan Hovold <johan@kernel.org>
Diffstat (limited to 'net/ethernet/Makefile')