From 79fd9281880974f076c5b4b354b57faa6e0cc146 Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Thu, 1 Dec 2016 02:06:30 +0100 Subject: [PATCH] serial: 16550: Add port type as driver data Add driver data to each compatible string to identify the type of the port. Since all the ports in the driver are entirely compatible with 16550 for now, all are marked with PORT_NS16550. But, there are ports which have specific quirks, like the JZ4780 UART, which do not have any DT property to denote the quirks. Instead, Linux uses the compatible string to discern such ports and enable the necessary quirks. Signed-off-by: Marek Vasut Cc: Tom Rini Cc: Simon Glass --- drivers/serial/ns16550.c | 26 ++++++++++++++++---------- 1 file changed, 16 insertions(+), 10 deletions(-) diff --git a/drivers/serial/ns16550.c b/drivers/serial/ns16550.c index 3c9f3b05ba..3130a1d16a 100644 --- a/drivers/serial/ns16550.c +++ b/drivers/serial/ns16550.c @@ -360,6 +360,12 @@ int ns16550_serial_probe(struct udevice *dev) return 0; } +#if CONFIG_IS_ENABLED(OF_CONTROL) +enum { + PORT_NS16550 = 0, +}; +#endif + #if CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA) int ns16550_serial_ofdata_to_platdata(struct udevice *dev) { @@ -453,16 +459,16 @@ const struct dm_serial_ops ns16550_serial_ops = { * compatible string to your dts. */ static const struct udevice_id ns16550_serial_ids[] = { - { .compatible = "ns16550" }, - { .compatible = "ns16550a" }, - { .compatible = "nvidia,tegra20-uart" }, - { .compatible = "snps,dw-apb-uart" }, - { .compatible = "ti,omap2-uart" }, - { .compatible = "ti,omap3-uart" }, - { .compatible = "ti,omap4-uart" }, - { .compatible = "ti,am3352-uart" }, - { .compatible = "ti,am4372-uart" }, - { .compatible = "ti,dra742-uart" }, + { .compatible = "ns16550", .data = PORT_NS16550 }, + { .compatible = "ns16550a", .data = PORT_NS16550 }, + { .compatible = "nvidia,tegra20-uart", .data = PORT_NS16550 }, + { .compatible = "snps,dw-apb-uart", .data = PORT_NS16550 }, + { .compatible = "ti,omap2-uart", .data = PORT_NS16550 }, + { .compatible = "ti,omap3-uart", .data = PORT_NS16550 }, + { .compatible = "ti,omap4-uart", .data = PORT_NS16550 }, + { .compatible = "ti,am3352-uart", .data = PORT_NS16550 }, + { .compatible = "ti,am4372-uart", .data = PORT_NS16550 }, + { .compatible = "ti,dra742-uart", .data = PORT_NS16550 }, {} }; #endif -- 2.39.2