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Subject[PATCH v10 03/12] soc: mediatek: Add basic_clk_name to scp_power_data
Date
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_name of each power domain.

Signed-off-by: Weiyi Lu <weiyi.lu@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 f669d37..9343277 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_name: 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_name[MAX_CLKS];
u8 caps;
};

@@ -493,16 +496,26 @@ 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_name[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_name[0]) {
+ for (j = 0; j < MAX_CLKS &&
+ data->basic_clk_name[j]; j++)
+ scpd->clk[j] = devm_clk_get(&pdev->dev,
+ data->basic_clk_name[j]);
}

genpd->name = data->name;
--
1.8.1.1.dirty
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