From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marek Vasut Date: Fri, 25 Nov 2016 23:32:26 +0100 Subject: [U-Boot] [PATCH 05/14] serial: 16550: Add port type as driver data In-Reply-To: <20161125223235.3434-1-marex@denx.de> References: <20161125223235.3434-1-marex@denx.de> Message-ID: <20161125223235.3434-5-marex@denx.de> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de 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 3c9f3b0..3130a1d 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 -- 2.10.2