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Add support for the resource power manager clocks over SMD/GLINK to be stubbed. Signed-off-by: Jorge Ramirez-Ortiz <jorge.ramirez@oss.qualcomm.com> Reviewed-by: Sumit Garg <sumit.garg@oss.qualcomm.com> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> Reviewed-by: Caleb Connolly <caleb.connolly@linaro.org> Link: https://lore.kernel.org/r/20250407175617.3494506-4-jorge.ramirez@oss.qualcomm.com Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
70 lines
1.5 KiB
C
70 lines
1.5 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Stub clk driver for non-essential clocks.
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*
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* This driver should be used for clock controllers
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* which are described as dependencies in DT but aren't
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* actually necessary for hardware functionality.
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*/
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#include <clk-uclass.h>
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#include <dm.h>
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/* NOP parent nodes to stub clocks */
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static const struct udevice_id nop_parent_ids[] = {
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{ .compatible = "qcom,rpm-proc" },
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{ .compatible = "qcom,glink-rpm" },
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{ .compatible = "qcom,glink-smd-rpm" },
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{ }
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};
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U_BOOT_DRIVER(nop_parent) = {
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.name = "nop_parent",
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.id = UCLASS_NOP,
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.of_match = nop_parent_ids,
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.bind = dm_scan_fdt_dev,
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.flags = DM_FLAG_DEFAULT_PD_CTRL_OFF,
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};
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static ulong stub_clk_set_rate(struct clk *clk, ulong rate)
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{
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return (clk->rate = rate);
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}
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static ulong stub_clk_get_rate(struct clk *clk)
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{
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return clk->rate;
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}
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static int stub_clk_nop(struct clk *clk)
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{
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return 0;
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}
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static struct clk_ops stub_clk_ops = {
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.set_rate = stub_clk_set_rate,
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.get_rate = stub_clk_get_rate,
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.enable = stub_clk_nop,
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.disable = stub_clk_nop,
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};
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static const struct udevice_id stub_clk_ids[] = {
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{ .compatible = "qcom,rpmcc" },
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{ .compatible = "qcom,sdm845-rpmh-clk" },
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{ .compatible = "qcom,sc7280-rpmh-clk" },
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{ .compatible = "qcom,sm8150-rpmh-clk" },
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{ .compatible = "qcom,sm8250-rpmh-clk" },
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{ .compatible = "qcom,sm8550-rpmh-clk" },
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{ .compatible = "qcom,sm8650-rpmh-clk" },
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{ }
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};
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U_BOOT_DRIVER(clk_stub) = {
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.name = "clk_stub",
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.id = UCLASS_CLK,
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.ops = &stub_clk_ops,
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.of_match = stub_clk_ids,
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.flags = DM_FLAG_DEFAULT_PD_CTRL_OFF,
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};
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