[src/trunk]: src/sys/dev/spi add fdt device_compatible_entry

[tnn <tnn%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/2c49d5bccf72
branches:  trunk
changeset: 1004569:2c49d5bccf72
user:      tnn <tnn%NetBSD.org@localhost>
date:      Sat Nov 02 22:55:57 2019 +0000

description:
add fdt device_compatible_entry

diffstat:

 sys/dev/spi/ssdfb_spi.c |  18 ++++++++++++++----
 1 files changed, 14 insertions(+), 4 deletions(-)

diffs (49 lines):

diff -r 60b41715e419 -r 2c49d5bccf72 sys/dev/spi/ssdfb_spi.c
--- a/sys/dev/spi/ssdfb_spi.c   Sat Nov 02 21:34:58 2019 +0000
+++ b/sys/dev/spi/ssdfb_spi.c   Sat Nov 02 22:55:57 2019 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: ssdfb_spi.c,v 1.2 2019/11/02 17:13:20 tnn Exp $ */
+/* $NetBSD: ssdfb_spi.c,v 1.3 2019/11/02 22:55:57 tnn Exp $ */
 
 /*
  * Copyright (c) 2019 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: ssdfb_spi.c,v 1.2 2019/11/02 17:13:20 tnn Exp $");
+__KERNEL_RCSID(0, "$NetBSD: ssdfb_spi.c,v 1.3 2019/11/02 22:55:57 tnn Exp $");
 
 #include <sys/param.h>
 #include <sys/device.h>
@@ -73,18 +73,28 @@
 CFATTACH_DECL_NEW(ssdfb_spi, sizeof(struct ssdfb_spi_softc),
     ssdfb_spi_match, ssdfb_spi_attach, NULL, NULL);
 
+static const struct device_compatible_entry compat_data[] = {
+       { "solomon,ssd1322",    0 },
+       { NULL,                 0 }
+};
+
 static int
 ssdfb_spi_match(device_t parent, cfdata_t match, void *aux)
 {
        struct spi_attach_args *sa = aux;
+       int res;
+
+       res = spi_compatible_match(sa, match, compat_data);
+       if (!res)
+               return res;
 
        /*
         * SSD1306 and SSD1322 data sheets specify 100ns cycle time.
         */
        if (spi_configure(sa->sa_handle, SPI_MODE_0, 10000000))
-               return 0;
+               res = 0;
 
-       return 1;
+       return res;
 }
 
 static void