[PATCH 2/5] drm/msm/mdss: enable optional core clock for MDP5 MDSS

Dmitry Baryshkov dmitry.baryshkov at linaro.org
Wed Jun 15 13:59:32 UTC 2022


Enable (optional) core (MDP_CLK) clock that allows accessing HW_REV
registers during the platform init.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>
---
 drivers/gpu/drm/msm/msm_mdss.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/msm/msm_mdss.c b/drivers/gpu/drm/msm/msm_mdss.c
index b41848bfff91..f7b4628986b8 100644
--- a/drivers/gpu/drm/msm/msm_mdss.c
+++ b/drivers/gpu/drm/msm/msm_mdss.c
@@ -288,7 +288,7 @@ static int msm_mdss_reset(struct device *dev)
 /*
  * MDP5 MDSS uses at most three specified clocks.
  */
-#define MDP5_MDSS_NUM_CLOCKS 3
+#define MDP5_MDSS_NUM_CLOCKS 4
 static int mdp5_mdss_parse_clock(struct platform_device *pdev, struct clk_bulk_data **clocks)
 {
 	struct clk_bulk_data *bulk;
@@ -305,6 +305,7 @@ static int mdp5_mdss_parse_clock(struct platform_device *pdev, struct clk_bulk_d
 	bulk[num_clocks++].id = "iface";
 	bulk[num_clocks++].id = "bus";
 	bulk[num_clocks++].id = "vsync";
+	bulk[num_clocks++].id = "core"; /* for hw_rev access */
 
 	ret = devm_clk_bulk_get_optional(&pdev->dev, num_clocks, bulk);
 	if (ret)
-- 
2.35.1



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