Get the PHY ref clock from the device tree instead of hardcoding
its name and rate.
Signed-off-by: Matthias Kaehlcke <mka@xxxxxxxxxxxx>
---
drivers/gpu/drm/msm/dsi/pll/dsi_pll_10nm.c | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/msm/dsi/pll/dsi_pll_10nm.c b/drivers/gpu/drm/msm/dsi/pll/dsi_pll_10nm.c
index 4c03f0b7343ed..1016eb50df8f5 100644
--- a/drivers/gpu/drm/msm/dsi/pll/dsi_pll_10nm.c
+++ b/drivers/gpu/drm/msm/dsi/pll/dsi_pll_10nm.c
@@ -91,6 +91,8 @@ struct dsi_pll_10nm {
void __iomem *phy_cmn_mmio;
void __iomem *mmio;
+ struct clk *vco_ref_clk;
+
u64 vco_ref_clk_rate;
u64 vco_current_rate;
@@ -630,7 +632,8 @@ static int pll_10nm_register(struct dsi_pll_10nm *pll_10nm)
char clk_name[32], parent[32], vco_name[32];
char parent2[32], parent3[32], parent4[32];
struct clk_init_data vco_init = {
- .parent_names = (const char *[]){ "xo" },
+ .parent_names = (const char *[]){
+ __clk_get_name(pll_10nm->vco_ref_clk) },
.num_parents = 1,
.name = vco_name,
.flags = CLK_IGNORE_UNUSED,
@@ -786,6 +789,12 @@ struct msm_dsi_pll *msm_dsi_pll_10nm_init(struct platform_device *pdev, int id)
pll_10nm->id = id;
pll_10nm_list[id] = pll_10nm;
+ pll_10nm->vco_ref_clk = devm_clk_get(&pdev->dev, "ref");
+ if (IS_ERR(pll_10nm->vco_ref_clk)) {
+ dev_err(&pdev->dev, "couldn't get 'ref' clock\n");
+ return (void *)pll_10nm->vco_ref_clk;
+ }
+
pll_10nm->phy_cmn_mmio = msm_ioremap(pdev, "dsi_phy", "DSI_PHY");
if (IS_ERR_OR_NULL(pll_10nm->phy_cmn_mmio)) {
dev_err(&pdev->dev, "failed to map CMN PHY base\n");
--
2.19.1.930.g4563a0d9d0-goog
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