[PATCH 2/6] sandbox: test: Add a second SPI slave on sandbox_spi bus

[Ovidiu Panait]

Place a second spi slave on the sandbox_spi bus, to be used by the
spi_claim_bus() testcase we are about to introduce. We need to make sure
that jumping between slaves calling spi_claim_bus() sets the bus speed and
mode appropriately. Use different max-hz and mode properties for this new
slave.

Also, update sandbox_spi cs_info call to allow activity on CS0/CS1 and
adapt dm_test_spi_find() testcase for this new setup.

Signed-off-by: Ovidiu Panait <ovidiu.pan...@windriver.com>
---

 arch/sandbox/dts/test.dts | 10 +++++++++-
 drivers/spi/sandbox_spi.c |  4 ++--
 test/dm/spi.c             |  2 +-
 3 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/arch/sandbox/dts/test.dts b/arch/sandbox/dts/test.dts
index f3b766271d..3eca1a73de 100644
--- a/arch/sandbox/dts/test.dts
+++ b/arch/sandbox/dts/test.dts
@@ -864,13 +864,21 @@
                #size-cells = <0>;
                reg = <0 1>;
                compatible = "sandbox,spi";
-               cs-gpios = <0>, <&gpio_a 0>;
+               cs-gpios = <0>, <0>, <&gpio_a 0>;
                spi.bin@0 {
                        reg = <0>;
                        compatible = "spansion,m25p16", "jedec,spi-nor";
                        spi-max-frequency = <40000000>;
                        sandbox,filename = "spi.bin";
                };
+               spi.bin@1 {
+                       reg = <1>;
+                       compatible = "spansion,m25p16", "jedec,spi-nor";
+                       spi-max-frequency = <50000000>;
+                       sandbox,filename = "spi.bin";
+                       spi-cpol;
+                       spi-cpha;
+               };
        };
 
        syscon0: syscon@0 {
diff --git a/drivers/spi/sandbox_spi.c b/drivers/spi/sandbox_spi.c
index 3640ddeeb6..412756aa4b 100644
--- a/drivers/spi/sandbox_spi.c
+++ b/drivers/spi/sandbox_spi.c
@@ -101,8 +101,8 @@ static int sandbox_spi_set_mode(struct udevice *bus, uint 
mode)
 static int sandbox_cs_info(struct udevice *bus, uint cs,
                           struct spi_cs_info *info)
 {
-       /* Always allow activity on CS 0 */
-       if (cs >= 1)
+       /* Always allow activity on CS 0, CS 1 */
+       if (cs >= 2)
                return -EINVAL;
 
        return 0;
diff --git a/test/dm/spi.c b/test/dm/spi.c
index fb180aed1f..6db680edd2 100644
--- a/test/dm/spi.c
+++ b/test/dm/spi.c
@@ -22,7 +22,7 @@ static int dm_test_spi_find(struct unit_test_state *uts)
        struct sandbox_state *state = state_get_current();
        struct spi_slave *slave;
        struct udevice *bus, *dev;
-       const int busnum = 0, cs = 0, mode = 0, speed = 1000000, cs_b = 1;
+       const int busnum = 0, cs = 0, mode = 0, speed = 1000000, cs_b = 2;
        struct spi_cs_info info;
        ofnode node;
 
-- 
2.17.1