Commit aa788d3b authored by Taniya Das's avatar Taniya Das Committed by Bjorn Andersson
Browse files

clk: qcom: branch: Extend invert logic for branch2 mem clocks 



Some clock branches require inverted logic for memory gating, where
disabling the memory involves setting a bit and enabling it involves
clearing the same bit. This behavior differs from the standard approach
memory branch clocks ops where enabling typically sets the bit.

The mem_enable_invert to allow conditional handling of these sequences
of the inverted control logic for memory operations required on those
memory clock branches.

Signed-off-by: default avatarTaniya Das <taniya.das@oss.qualcomm.com>
Reviewed-by: default avatarImran Shaik <imran.shaik@oss.qualcomm.com>
Reviewed-by: default avatarKonrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251118-sm8750-videocc-v2-v4-3-049882a70c9f@oss.qualcomm.com


Signed-off-by: default avatarBjorn Andersson <andersson@kernel.org>
parent 53a18958

drivers/clk/qcom/clk-branch.c

+4 −4
Original line number Diff line number Diff line
@@ -142,8 +142,8 @@ static int clk_branch2_mem_enable(struct clk_hw *hw) 
	u32 val;

	int ret;



	regmap_update_bits(branch.clkr.regmap, mem_br->mem_enable_reg,

			   mem_br->mem_enable_ack_mask, mem_br->mem_enable_ack_mask);

	regmap_assign_bits(branch.clkr.regmap, mem_br->mem_enable_reg,

			   mem_br->mem_enable_mask, !mem_br->mem_enable_invert);



	ret = regmap_read_poll_timeout(branch.clkr.regmap, mem_br->mem_ack_reg,

				       val, val & mem_br->mem_enable_ack_mask, 0, 200);
@@ -159,8 +159,8 @@ static void clk_branch2_mem_disable(struct clk_hw *hw) 
{

	struct clk_mem_branch *mem_br = to_clk_mem_branch(hw);



	regmap_update_bits(mem_br->branch.clkr.regmap, mem_br->mem_enable_reg,

			   mem_br->mem_enable_ack_mask, 0);

	regmap_assign_bits(mem_br->branch.clkr.regmap, mem_br->mem_enable_reg,

			   mem_br->mem_enable_mask, mem_br->mem_enable_invert);



	return clk_branch2_disable(hw);

}