[PATCH v3 07/23] interconnect: qcom: icc-rpm: Allow negative QoS offset

[Konrad Dybcio <konrad.dybcio@linaro.org>]

In some very very very very unfortunate cases, the correct offset of
the QoS registers will be.. negative. One such case is MSM8998, where
The DDR BWMON occupies what-would-be-the-BIMC-base which we usually
take into account with the register calculation, making the actual
BIMC node start at what-would-be-the-BIMC-base+0x300.

In order to keep the calculation code sane, the simplest - however
ugly it may be - solution is to allow the offset to be negative.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 drivers/interconnect/qcom/icc-rpm.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/interconnect/qcom/icc-rpm.h b/drivers/interconnect/qcom/icc-rpm.h
index d2c04c400cad..ba840a436cc0 100644
--- a/drivers/interconnect/qcom/icc-rpm.h
+++ b/drivers/interconnect/qcom/icc-rpm.h
@@ -29,10 +29,10 @@ enum qcom_icc_type {
  * @num_intf_clks: the total number of intf_clks clk_bulk_data entries
  * @type: the ICC provider type
  * @regmap: regmap for QoS registers read/write access
- * @qos_offset: offset to QoS registers
  * @bus_clk_rate: bus clock rate in Hz
  * @bus_clks: the clk_bulk_data table of bus clocks
  * @intf_clks: a clk_bulk_data array of interface clocks
+ * @qos_offset: offset to QoS registers
  * @keep_alive: whether to always keep a minimum vote on the bus clocks
  * @is_on: whether the bus is powered on
  */
@@ -42,7 +42,7 @@ struct qcom_icc_provider {
 	int num_intf_clks;
 	enum qcom_icc_type type;
 	struct regmap *regmap;
-	unsigned int qos_offset;
+	int qos_offset;
 	u64 bus_clk_rate[NUM_BUS_CLKS];
 	struct clk_bulk_data bus_clks[NUM_BUS_CLKS];
 	struct clk_bulk_data *intf_clks;
@@ -108,7 +108,7 @@ struct qcom_icc_desc {
 	bool no_clk_scaling;
 	enum qcom_icc_type type;
 	const struct regmap_config *regmap_cfg;
-	unsigned int qos_offset;
+	int qos_offset;
 };
 
 /* Valid for all bus types */

-- 
2.41.0