The GPU clock controllers use memory region that is a part of the GMU's
memory region. Add qcom_cc_map_norequest() to be used by GPUCC, so that
GPU driver can use devm_ioremap_resource for GMU resources.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
---
drivers/clk/qcom/common.c | 20 ++++++++++++++++++++
drivers/clk/qcom/common.h | 2 ++
2 files changed, 22 insertions(+)
diff --git a/drivers/clk/qcom/common.c b/drivers/clk/qcom/common.c
index c92e10c60322..dcc73bc22606 100644
--- a/drivers/clk/qcom/common.c
+++ b/drivers/clk/qcom/common.c
@@ -113,6 +113,26 @@ qcom_cc_map(struct platform_device *pdev, const struct qcom_cc_desc *desc)
}
EXPORT_SYMBOL_GPL(qcom_cc_map);
+/* gpucc shares memory region with GMU, don't request the region */
+struct regmap *
+qcom_cc_map_norequest(struct platform_device *pdev, const struct qcom_cc_desc *desc)
+{
+ struct device *dev = &pdev->dev;
+ struct resource *r;
+ void __iomem *base;
+
+ r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!r)
+ return ERR_PTR(dev_err_probe(dev, -EINVAL, "resource not found\n"));
+
+ base = devm_ioremap(dev, r->start, resource_size(r));
+ if (IS_ERR(base))
+ return ERR_CAST(base);
+
+ return devm_regmap_init_mmio(dev, base, desc->config);
+}
+EXPORT_SYMBOL_GPL(qcom_cc_map_norequest);
+
void
qcom_pll_set_fsm_mode(struct regmap *map, u32 reg, u8 bias_count, u8 lock_count)
{
diff --git a/drivers/clk/qcom/common.h b/drivers/clk/qcom/common.h
index d048bdeeba10..6cab7805a92c 100644
--- a/drivers/clk/qcom/common.h
+++ b/drivers/clk/qcom/common.h
@@ -60,6 +60,8 @@ extern int qcom_cc_register_sleep_clk(struct device *dev);
extern struct regmap *qcom_cc_map(struct platform_device *pdev,
const struct qcom_cc_desc *desc);
+extern struct regmap *qcom_cc_map_norequest(struct platform_device *pdev,
+ const struct qcom_cc_desc *desc);
extern int qcom_cc_really_probe(struct device *dev,
const struct qcom_cc_desc *desc,
struct regmap *regmap);
--
2.39.2
