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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Peng Fan Some clocks may exported to linux, while those clocks are not allowed to configure by Linux. For example: SYS_CLK1----- \ --MUX--->MMC1_CLK / SYS_CLK2----- MMC1 needs set parent, so SYS_CLK1 and SYS_CLK2 are exported to Linux, then the clk propagation will touch SYS_CLK1 or SYS_CLK2. So we need bypass the failure for SYS_CLK1 or SYS_CLK2 when enable the clock of MMC1. Signed-off-by: Peng Fan --- V2: New. Take Cristian's suggestion drivers/clk/clk-scmi.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/clk/clk-scmi.c b/drivers/clk/clk-scmi.c index 8cbe24789c24..1d809813eabd 100644 --- a/drivers/clk/clk-scmi.c +++ b/drivers/clk/clk-scmi.c @@ -119,8 +119,14 @@ static int scmi_clk_determine_rate(struct clk_hw *hw, struct clk_rate_request *r static int scmi_clk_enable(struct clk_hw *hw) { struct scmi_clk *clk = to_scmi_clk(hw); + int ret; + + ret = scmi_proto_clk_ops->enable(clk->ph, clk->id, NOT_ATOMIC); - return scmi_proto_clk_ops->enable(clk->ph, clk->id, NOT_ATOMIC); + if (ret == -EACCES && clk->info->state_ctrl_forbidden) + return 0; + + return ret; } static void scmi_clk_disable(struct clk_hw *hw) -- 2.37.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel