[PATCH V2] platform: generic: allwinner: correct mhpmevent count

[Inochi Amaoto]

Only the CSR mhpmevent 3-9,13-17 of D1 have valid function, so change
the mhpm_mask to a valid value to avoid invalid usage.

Due to the openc906 pmu code
https://github.com/T-head-Semi/openc906/blob/main/C906_RTL_FACTORY/gen_rtl/pmu/rtl/aq_hpcp_top.v

Signed-off-by: Inochi Amaoto <inochiama at outlook.com>
---
The fix code of T-HEAD C9xx PMU will arrive soon in a few days. This patch
is submitted for code cleanup
---
 platform/generic/allwinner/sun20i-d1.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/platform/generic/allwinner/sun20i-d1.c b/platform/generic/allwinner/sun20i-d1.c
index 0f0a9f3..03cb92c 100644
--- a/platform/generic/allwinner/sun20i-d1.c
+++ b/platform/generic/allwinner/sun20i-d1.c
@@ -272,7 +272,8 @@ static int sun20i_d1_extensions_init(const struct fdt_match *match,
 	sbi_pmu_set_device(&thead_c9xx_pmu_device);

 	/* auto-detection doesn't work on t-head c9xx cores */
-	hfeatures->mhpm_count = 29;
+	/* D1 has 29 mhpmevent csrs, but only 3-9,13-17 have valid value */
+	hfeatures->mhpm_mask = 0x0003e3f8;
 	hfeatures->mhpm_bits = 64;

 	return 0;
--
2.41.0