[COMMON] spi: core: Add snapshot function to SPI

This patch adds exynos_ss_spi to get debugging information of SPI
through exynos snapshot

Change-Id: I8938b508a51ff9a4a3523a9a9d602cf243f044f9
Signed-off-by: Kyungwoo Kang <kwoo.kang@samsung.com>

diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index b8623db3a7ba719d5eadd0ffedf294865c87d737..fec1419144d1c345c65d3ef13d22c782e5da0555 100644 (file)
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -1265,7 +1265,10 @@ static void __spi_pump_messages(struct spi_controller *ctlr, bool in_kthread)
                goto out;
        }
 
+       dbg_snapshot_spi(ctlr, ctlr->cur_msg, DSS_FLAG_IN);
        ret = ctlr->transfer_one_message(ctlr, ctlr->cur_msg);
+       dbg_snapshot_spi(ctlr, ctlr->cur_msg, DSS_FLAG_OUT);
+
        if (ret) {
                dev_err(&ctlr->dev,
                        "failed to transfer one message from queue\n");