From e008227eb34fe14eb5fdb1ca2a07ac018dd9f22a Mon Sep 17 00:00:00 2001
From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
Date: Mon, 29 Jul 2019 17:45:19 -0500
Subject: HSI: ssi_protocol: Mark expected switch fall-throughs
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Mark switch cases where we are expecting to fall through.

This patch fixes the following warning (Building: arm):

drivers/hsi/clients/ssi_protocol.c: In function ‘ssip_set_rxstate’:
drivers/hsi/clients/ssi_protocol.c:291:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
   if (atomic_read(&ssi->tx_usecnt))
      ^
drivers/hsi/clients/ssi_protocol.c:294:2: note: here
  case RECEIVING:
  ^~~~

drivers/hsi/clients/ssi_protocol.c: In function ‘ssip_keep_alive’:
drivers/hsi/clients/ssi_protocol.c:466:7: warning: this statement may fall through [-Wimplicit-fallthrough=]
    if (atomic_read(&ssi->tx_usecnt) == 0)
       ^
drivers/hsi/clients/ssi_protocol.c:472:3: note: here
   case SEND_IDLE:
   ^~~~

Notice that, in this particular case, the code comment is
modified in accordance with what GCC is expecting to find.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
---
 drivers/hsi/clients/ssi_protocol.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/hsi/clients/ssi_protocol.c b/drivers/hsi/clients/ssi_protocol.c
index 9aeed98b87a1..504d00ec1ea7 100644
--- a/drivers/hsi/clients/ssi_protocol.c
+++ b/drivers/hsi/clients/ssi_protocol.c
@@ -290,7 +290,7 @@ static void ssip_set_rxstate(struct ssi_protocol *ssi, unsigned int state)
 		/* CMT speech workaround */
 		if (atomic_read(&ssi->tx_usecnt))
 			break;
-		/* Otherwise fall through */
+		/* Else, fall through */
 	case RECEIVING:
 		mod_timer(&ssi->keep_alive, jiffies +
 						msecs_to_jiffies(SSIP_KATOUT));
@@ -465,9 +465,10 @@ static void ssip_keep_alive(struct timer_list *t)
 		case SEND_READY:
 			if (atomic_read(&ssi->tx_usecnt) == 0)
 				break;
+			/* Fall through */
 			/*
-			 * Fall through. Workaround for cmt-speech
-			 * in that case we relay on audio timers.
+			 * Workaround for cmt-speech in that case
+			 * we relay on audio timers.
 			 */
 		case SEND_IDLE:
 			spin_unlock(&ssi->lock);
-- 
cgit v1.2.3


From c1030cd456198a2c58f718c3c4b215698d635553 Mon Sep 17 00:00:00 2001
From: Stephen Boyd <swboyd@chromium.org>
Date: Tue, 30 Jul 2019 11:15:16 -0700
Subject: HSI: Remove dev_err() usage after platform_get_irq()

We don't need dev_err() messages when platform_get_irq() fails now that
platform_get_irq() prints an error message itself when something goes
wrong. Let's remove these prints with a simple semantic patch.

// <smpl>
@@
expression ret;
struct platform_device *E;
@@

ret =
(
platform_get_irq(E, ...)
|
platform_get_irq_byname(E, ...)
);

if ( \( ret < 0 \| ret <= 0 \) )
{
(
-if (ret != -EPROBE_DEFER)
-{ ...
-dev_err(...);
-... }
|
...
-dev_err(...);
)
...
}
// </smpl>

While we're here, remove braces on if statements that only have one
statement (manually).

Cc: Sebastian Reichel <sre@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
---
 drivers/hsi/controllers/omap_ssi_core.c | 4 +---
 drivers/hsi/controllers/omap_ssi_port.c | 4 +---
 2 files changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/hsi/controllers/omap_ssi_core.c b/drivers/hsi/controllers/omap_ssi_core.c
index 0cba567ee2d7..4bc4a201f0f6 100644
--- a/drivers/hsi/controllers/omap_ssi_core.c
+++ b/drivers/hsi/controllers/omap_ssi_core.c
@@ -370,10 +370,8 @@ static int ssi_add_controller(struct hsi_controller *ssi,
 	if (err < 0)
 		goto out_err;
 	err = platform_get_irq_byname(pd, "gdd_mpu");
-	if (err < 0) {
-		dev_err(&pd->dev, "GDD IRQ resource missing\n");
+	if (err < 0)
 		goto out_err;
-	}
 	omap_ssi->gdd_irq = err;
 	tasklet_init(&omap_ssi->gdd_tasklet, ssi_gdd_tasklet,
 							(unsigned long)ssi);
diff --git a/drivers/hsi/controllers/omap_ssi_port.c b/drivers/hsi/controllers/omap_ssi_port.c
index 2cd93119515f..a0cb5be246e1 100644
--- a/drivers/hsi/controllers/omap_ssi_port.c
+++ b/drivers/hsi/controllers/omap_ssi_port.c
@@ -1038,10 +1038,8 @@ static int ssi_port_irq(struct hsi_port *port, struct platform_device *pd)
 	int err;
 
 	err = platform_get_irq(pd, 0);
-	if (err < 0) {
-		dev_err(&port->device, "Port IRQ resource missing\n");
+	if (err < 0)
 		return err;
-	}
 	omap_port->irq = err;
 	err = devm_request_threaded_irq(&port->device, omap_port->irq, NULL,
 				ssi_pio_thread, IRQF_ONESHOT, "SSI PORT", port);
-- 
cgit v1.2.3