Hardware clock gating is supported on some of the clocks declared in
there: ignoring that it does exist may lead to unstabilities on some
firmwares.
Add the HWCG registers where applicable to stop potential crashes.
This was verified on a smartphone shipped with a recent MSM8998
firmware, which will experience random crashes without this change.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxxx>
---
drivers/clk/qcom/mmcc-msm8998.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/drivers/clk/qcom/mmcc-msm8998.c b/drivers/clk/qcom/mmcc-msm8998.c
index 475e00a5fdf4..f9510a248a36 100644
--- a/drivers/clk/qcom/mmcc-msm8998.c
+++ b/drivers/clk/qcom/mmcc-msm8998.c
@@ -1211,6 +1211,8 @@ static struct clk_rcg2 vfe1_clk_src = {
static struct clk_branch misc_ahb_clk = {
.halt_reg = 0x328,
+ .hwcg_reg = 0x328,
+ .hwcg_bit = 1,
.clkr = {
.enable_reg = 0x328,
.enable_mask = BIT(0),
@@ -1241,6 +1243,8 @@ static struct clk_branch video_core_clk = {
static struct clk_branch video_ahb_clk = {
.halt_reg = 0x1030,
+ .hwcg_reg = 0x1030,
+ .hwcg_bit = 1,
.clkr = {
.enable_reg = 0x1030,
.enable_mask = BIT(0),
@@ -1315,6 +1319,8 @@ static struct clk_branch video_subcore1_clk = {
static struct clk_branch mdss_ahb_clk = {
.halt_reg = 0x2308,
+ .hwcg_reg = 0x2308,
+ .hwcg_bit = 1,
.clkr = {
.enable_reg = 0x2308,
.enable_mask = BIT(0),
@@ -2496,6 +2502,8 @@ static struct clk_branch mnoc_ahb_clk = {
static struct clk_branch bimc_smmu_ahb_clk = {
.halt_reg = 0xe004,
+ .hwcg_reg = 0xe004,
+ .hwcg_bit = 1,
.clkr = {
.enable_reg = 0xe004,
.enable_mask = BIT(0),
@@ -2511,6 +2519,8 @@ static struct clk_branch bimc_smmu_ahb_clk = {
static struct clk_branch bimc_smmu_axi_clk = {
.halt_reg = 0xe008,
+ .hwcg_reg = 0xe008,
+ .hwcg_bit = 1,
.clkr = {
.enable_reg = 0xe008,
.enable_mask = BIT(0),
--
2.29.2
