[PATCH v1 06/36] soc: fsl: cpm1: tsa: Add missing spinlock comment

[Herve Codina]

checkpatch.pl raises the following issue
  CHECK: spinlock_t definition without comment

Add the missing comment.

Signed-off-by: Herve Codina <herve.codina at bootlin.com>
---
 drivers/soc/fsl/qe/tsa.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/soc/fsl/qe/tsa.c b/drivers/soc/fsl/qe/tsa.c
index 7b1032fb1572..a9d35b44489d 100644
--- a/drivers/soc/fsl/qe/tsa.c
+++ b/drivers/soc/fsl/qe/tsa.c
@@ -128,7 +128,7 @@ struct tsa {
 	void __iomem *si_regs;
 	void __iomem *si_ram;
 	resource_size_t si_ram_sz;
-	spinlock_t	lock;
+	spinlock_t	lock; /* Lock for read/modify/write sequence */
 	int tdms; /* TSA_TDMx ORed */
 	struct tsa_tdm tdm[2]; /* TDMa and TDMb */
 	struct tsa_serial {
-- 
2.45.0