[PATCH v7 08/13] soc: mediatek: Add basic_clk_id to scp_power_data

[Weiyi Lu]

Try to stop extending the clk_id or clk_names if there are
more and more new BASIC clocks. To get its own clocks by the
basic_clk_id of each power domain.

Signed-off-by: Weiyi Lu <weiyi...@mediatek.com>
---
 drivers/soc/mediatek/mtk-scpsys.c | 29 +++++++++++++++++++++--------
 1 file changed, 21 insertions(+), 8 deletions(-)

diff --git a/drivers/soc/mediatek/mtk-scpsys.c 
b/drivers/soc/mediatek/mtk-scpsys.c
index fb2b027..d31e1a4 100644
--- a/drivers/soc/mediatek/mtk-scpsys.c
+++ b/drivers/soc/mediatek/mtk-scpsys.c
@@ -117,6 +117,8 @@ enum clk_id {
  * @sram_pdn_ack_bits: The mask for sram power control acked bits.
  * @bus_prot_mask: The mask for single step bus protection.
  * @clk_id: The basic clocks required by this power domain.
+ * @basic_clk_id: provide the same purpose with field "clk_id"
+ *                by declaring basic clock prefix name rather than clk_id.
  * @caps: The flag for active wake-up action.
  */
 struct scp_domain_data {
@@ -127,6 +129,7 @@ struct scp_domain_data {
        u32 sram_pdn_ack_bits;
        u32 bus_prot_mask;
        enum clk_id clk_id[MAX_CLKS];
+       const char *basic_clk_id[MAX_CLKS];
        u8 caps;
 };
 
@@ -490,16 +493,26 @@ static struct scp *init_scp(struct platform_device *pdev,
 
                scpd->data = data;
 
-               for (j = 0; j < MAX_CLKS && data->clk_id[j]; j++) {
-                       struct clk *c = clk[data->clk_id[j]];
+               if (data->clk_id[0]) {
+                       WARN_ON(data->basic_clk_id[0]);
 
-                       if (IS_ERR(c)) {
-                               dev_err(&pdev->dev, "%s: clk unavailable\n",
-                                       data->name);
-                               return ERR_CAST(c);
-                       }
+                       for (j = 0; j < MAX_CLKS && data->clk_id[j]; j++) {
+                               struct clk *c = clk[data->clk_id[j]];
+
+                               if (IS_ERR(c)) {
+                                       dev_err(&pdev->dev,
+                                               "%s: clk unavailable\n",
+                                               data->name);
+                                       return ERR_CAST(c);
+                               }
 
-                       scpd->clk[j] = c;
+                               scpd->clk[j] = c;
+                       }
+               } else if (data->basic_clk_id[0]) {
+                       for (j = 0; j < MAX_CLKS &&
+                                       data->basic_clk_id[j]; j++)
+                               scpd->clk[j] = devm_clk_get(&pdev->dev,
+                                               data->basic_clk_id[j]);
                }
 
                genpd->name = data->name;
-- 
1.8.1.1.dirty