[S] Change in coreboot[master]: soc/amd/common/block/cpu/svi2: drop unneeded core_vid check

[Felix Held (Code Review)]

Felix Held has submitted this change. ( https://review.coreboot.org/c/coreboot/+/74000 )

(

3 is the latest approved patch-set.
No files were changed between the latest approved patch-set and the submitted one.
 )Change subject: soc/amd/common/block/cpu/svi2: drop unneeded core_vid check
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soc/amd/common/block/cpu/svi2: drop unneeded core_vid check

A core voltage ID larger than 0xff shouldn't happen, since SVI2's core
VID is only 8 bit long. In order for making it more difficult to use
this function in a wrong way that results in a very wrong voltage being
returned, also return 0 for those invalid core VID values.

Signed-off-by: Felix Held 
Change-Id: I95417c45db86cd2373879cdad8a07fb9eb8dfdda
Reviewed-on: https://review.coreboot.org/c/coreboot/+/74000
Reviewed-by: Fred Reitberger 
Tested-by: build bot (Jenkins) 
---
M src/soc/amd/common/block/cpu/svi2.c
1 file changed, 20 insertions(+), 2 deletions(-)

Approvals:
  build bot (Jenkins): Verified
  Fred Reitberger: Looks good to me, approved

diff --git a/src/soc/amd/common/block/cpu/svi2.c b/src/soc/amd/common/block/cpu/svi2.c
index 21d459f..2e8766c 100644
--- a/src/soc/amd/common/block/cpu/svi2.c
+++ b/src/soc/amd/common/block/cpu/svi2.c
@@ -10,8 +10,8 @@

uint32_t get_uvolts_from_vid(uint16_t core_vid)
 {
-	if ((core_vid >= 0xF8) && (core_vid <= 0xFF)) {
-		/* Voltage off for VID codes 0xF8 to 0xFF */
+	if (core_vid >= 0xF8) {
+		/* Voltage off for VID codes >= 0xF8 */
    	return 0;
    } else {
    	return SERIAL_VID_2_MAX_MICROVOLTS -