[PATCH 1/2] arm64/sysreg: improve comment for regs without fields

[Mark Rutland]

Currently for registers without fields we create a comment pointing at
the common definitions, e.g.

| #define REG_TTBR0_EL1                           S3_0_C2_C0_0
| #define SYS_TTBR0_EL1                           sys_reg(3, 0, 2, 0, 0)
| #define SYS_TTBR0_EL1_Op0                       3
| #define SYS_TTBR0_EL1_Op1                       0
| #define SYS_TTBR0_EL1_CRn                       2
| #define SYS_TTBR0_EL1_CRm                       0
| #define SYS_TTBR0_EL1_Op2                       0
|
| /* See TTBRx_EL1 */

It would be slightly nicer if the comment said what we should be looking
for, e.g.

| #define REG_TTBR0_EL1                           S3_0_C2_C0_0
| #define SYS_TTBR0_EL1                           sys_reg(3, 0, 2, 0, 0)
| #define SYS_TTBR0_EL1_Op0                       3
| #define SYS_TTBR0_EL1_Op1                       0
| #define SYS_TTBR0_EL1_CRn                       2
| #define SYS_TTBR0_EL1_CRm                       0
| #define SYS_TTBR0_EL1_Op2                       0
|
| /* For TTBR0_EL1 fields see TTBRx_EL1 */

Update the comment generation accordingly.

Signed-off-by: Mark Rutland <mark.rutland at arm.com>
Cc: Catalin Marinas <catalin.marinas at arm.com>
Cc: Mark Brown <broonie at kernel.org>
Cc: Will Deacon <will at kernel.org>
---
 arch/arm64/tools/gen-sysreg.awk | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/tools/gen-sysreg.awk b/arch/arm64/tools/gen-sysreg.awk
index 3ffd77cbb4994..f41feb87d0ca1 100755
--- a/arch/arm64/tools/gen-sysreg.awk
+++ b/arch/arm64/tools/gen-sysreg.awk
@@ -184,7 +184,7 @@ END {
 	if (next_bit != 63)
 		fatal("Some fields already defined for " reg)
 
-	print "/* See " $2 " */"
+	print "/* For " reg " fields see " $2 " */"
 	print ""
 
         next_bit = 0
-- 
2.30.2